2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
19 #include "common/ieee802_11_defs.h"
20 #include "common/ieee802_11_common.h"
21 #include "common/wpa_ctrl.h"
22 #include "wps/wps_i.h"
27 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
);
28 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
);
29 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
30 const u8
*sa
, const u8
*data
, size_t len
,
32 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
33 const u8
*sa
, const u8
*data
,
35 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
36 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
);
40 * p2p_scan recovery timeout
42 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
43 * timeout for this to avoid hitting P2P timeout unnecessarily.
45 #define P2P_SCAN_TIMEOUT 35
48 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
49 * entries will be removed
51 #define P2P_PEER_EXPIRATION_AGE 300
53 #define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
55 static void p2p_expire_peers(struct p2p_data
*p2p
)
57 struct p2p_device
*dev
, *n
;
62 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
63 if (dev
->last_seen
.sec
+ P2P_PEER_EXPIRATION_AGE
>= now
.sec
)
66 if (p2p
->cfg
->go_connected
&&
67 p2p
->cfg
->go_connected(p2p
->cfg
->cb_ctx
,
68 dev
->info
.p2p_device_addr
)) {
70 * We are connected as a client to a group in which the
71 * peer is the GO, so do not expire the peer entry.
73 os_get_time(&dev
->last_seen
);
77 for (i
= 0; i
< p2p
->num_groups
; i
++) {
78 if (p2p_group_is_client_connected(
79 p2p
->groups
[i
], dev
->info
.p2p_device_addr
))
82 if (i
< p2p
->num_groups
) {
84 * The peer is connected as a client in a group where
85 * we are the GO, so do not expire the peer entry.
87 os_get_time(&dev
->last_seen
);
91 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Expiring old peer "
92 "entry " MACSTR
, MAC2STR(dev
->info
.p2p_device_addr
));
93 dl_list_del(&dev
->list
);
94 p2p_device_free(p2p
, dev
);
99 static void p2p_expiration_timeout(void *eloop_ctx
, void *timeout_ctx
)
101 struct p2p_data
*p2p
= eloop_ctx
;
102 p2p_expire_peers(p2p
);
103 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL
, 0,
104 p2p_expiration_timeout
, p2p
, NULL
);
108 static const char * p2p_state_txt(int state
)
117 case P2P_CONNECT_LISTEN
:
118 return "CONNECT_LISTEN";
121 case P2P_LISTEN_ONLY
:
122 return "LISTEN_ONLY";
123 case P2P_WAIT_PEER_CONNECT
:
124 return "WAIT_PEER_CONNECT";
125 case P2P_WAIT_PEER_IDLE
:
126 return "WAIT_PEER_IDLE";
127 case P2P_SD_DURING_FIND
:
128 return "SD_DURING_FIND";
129 case P2P_PROVISIONING
:
130 return "PROVISIONING";
131 case P2P_PD_DURING_FIND
:
132 return "PD_DURING_FIND";
135 case P2P_INVITE_LISTEN
:
136 return "INVITE_LISTEN";
137 case P2P_SEARCH_WHEN_READY
:
138 return "SEARCH_WHEN_READY";
145 u16
p2p_get_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
147 struct p2p_device
*dev
= NULL
;
152 dev
= p2p_get_device(p2p
, addr
);
154 return dev
->wps_prov_info
;
160 void p2p_clear_provisioning_info(struct p2p_data
*p2p
, const u8
*iface_addr
)
162 struct p2p_device
*dev
= NULL
;
164 if (!iface_addr
|| !p2p
)
167 dev
= p2p_get_device_interface(p2p
, iface_addr
);
169 dev
->wps_prov_info
= 0;
173 void p2p_set_state(struct p2p_data
*p2p
, int new_state
)
175 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: State %s -> %s",
176 p2p_state_txt(p2p
->state
), p2p_state_txt(new_state
));
177 p2p
->state
= new_state
;
181 void p2p_set_timeout(struct p2p_data
*p2p
, unsigned int sec
, unsigned int usec
)
183 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
184 "P2P: Set timeout (state=%s): %u.%06u sec",
185 p2p_state_txt(p2p
->state
), sec
, usec
);
186 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
187 eloop_register_timeout(sec
, usec
, p2p_state_timeout
, p2p
, NULL
);
191 void p2p_clear_timeout(struct p2p_data
*p2p
)
193 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Clear timeout (state=%s)",
194 p2p_state_txt(p2p
->state
));
195 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
199 void p2p_go_neg_failed(struct p2p_data
*p2p
, struct p2p_device
*peer
,
202 struct p2p_go_neg_results res
;
203 p2p_clear_timeout(p2p
);
204 p2p_set_state(p2p
, P2P_IDLE
);
205 if (p2p
->go_neg_peer
)
206 p2p
->go_neg_peer
->wps_method
= WPS_NOT_READY
;
207 p2p
->go_neg_peer
= NULL
;
209 os_memset(&res
, 0, sizeof(res
));
212 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
,
214 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
,
217 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
221 static void p2p_listen_in_find(struct p2p_data
*p2p
)
227 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
228 "P2P: Starting short listen state (state=%s)",
229 p2p_state_txt(p2p
->state
));
231 freq
= p2p_channel_to_freq(p2p
->cfg
->country
, p2p
->cfg
->reg_class
,
234 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
235 "P2P: Unknown regulatory class/channel");
239 os_get_random((u8
*) &r
, sizeof(r
));
240 tu
= (r
% ((p2p
->max_disc_int
- p2p
->min_disc_int
) + 1) +
241 p2p
->min_disc_int
) * 100;
243 p2p
->pending_listen_freq
= freq
;
244 p2p
->pending_listen_sec
= 0;
245 p2p
->pending_listen_usec
= 1024 * tu
;
247 ies
= p2p_build_probe_resp_ies(p2p
);
251 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, 1024 * tu
/ 1000,
253 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
254 "P2P: Failed to start listen mode");
255 p2p
->pending_listen_freq
= 0;
261 int p2p_listen(struct p2p_data
*p2p
, unsigned int timeout
)
266 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
267 "P2P: Going to listen(only) state");
269 freq
= p2p_channel_to_freq(p2p
->cfg
->country
, p2p
->cfg
->reg_class
,
272 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
273 "P2P: Unknown regulatory class/channel");
277 p2p
->pending_listen_freq
= freq
;
278 p2p
->pending_listen_sec
= timeout
/ 1000;
279 p2p
->pending_listen_usec
= (timeout
% 1000) * 1000;
281 if (p2p
->p2p_scan_running
) {
282 if (p2p
->start_after_scan
== P2P_AFTER_SCAN_NOTHING
) {
283 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
284 "P2P: p2p_scan running - connect is already "
285 "pending - skip listen");
288 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
289 "P2P: p2p_scan running - delay start of listen state");
290 p2p
->start_after_scan
= P2P_AFTER_SCAN_LISTEN
;
294 ies
= p2p_build_probe_resp_ies(p2p
);
298 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, timeout
, ies
) < 0) {
299 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
300 "P2P: Failed to start listen mode");
301 p2p
->pending_listen_freq
= 0;
307 p2p_set_state(p2p
, P2P_LISTEN_ONLY
);
313 static void p2p_device_clear_reported(struct p2p_data
*p2p
)
315 struct p2p_device
*dev
;
316 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
)
317 dev
->flags
&= ~P2P_DEV_REPORTED
;
322 * p2p_get_device - Fetch a peer entry
323 * @p2p: P2P module context from p2p_init()
324 * @addr: P2P Device Address of the peer
325 * Returns: Pointer to the device entry or %NULL if not found
327 struct p2p_device
* p2p_get_device(struct p2p_data
*p2p
, const u8
*addr
)
329 struct p2p_device
*dev
;
330 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
331 if (os_memcmp(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
) == 0)
339 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
340 * @p2p: P2P module context from p2p_init()
341 * @addr: P2P Interface Address of the peer
342 * Returns: Pointer to the device entry or %NULL if not found
344 struct p2p_device
* p2p_get_device_interface(struct p2p_data
*p2p
,
347 struct p2p_device
*dev
;
348 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
349 if (os_memcmp(dev
->interface_addr
, addr
, ETH_ALEN
) == 0)
357 * p2p_create_device - Create a peer entry
358 * @p2p: P2P module context from p2p_init()
359 * @addr: P2P Device Address of the peer
360 * Returns: Pointer to the device entry or %NULL on failure
362 * If there is already an entry for the peer, it will be returned instead of
363 * creating a new one.
365 static struct p2p_device
* p2p_create_device(struct p2p_data
*p2p
,
368 struct p2p_device
*dev
, *oldest
= NULL
;
371 dev
= p2p_get_device(p2p
, addr
);
375 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
377 if (oldest
== NULL
||
378 os_time_before(&dev
->last_seen
, &oldest
->last_seen
))
381 if (count
+ 1 > p2p
->cfg
->max_peers
&& oldest
) {
382 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
383 "P2P: Remove oldest peer entry to make room for a new "
385 dl_list_del(&oldest
->list
);
386 p2p_device_free(p2p
, oldest
);
389 dev
= os_zalloc(sizeof(*dev
));
392 dl_list_add(&p2p
->devices
, &dev
->list
);
393 os_memcpy(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
);
399 static void p2p_copy_client_info(struct p2p_device
*dev
,
400 struct p2p_client_info
*cli
)
402 os_memcpy(dev
->info
.device_name
, cli
->dev_name
, cli
->dev_name_len
);
403 dev
->info
.device_name
[cli
->dev_name_len
] = '\0';
404 dev
->info
.dev_capab
= cli
->dev_capab
;
405 dev
->info
.config_methods
= cli
->config_methods
;
406 os_memcpy(dev
->info
.pri_dev_type
, cli
->pri_dev_type
, 8);
407 dev
->info
.wps_sec_dev_type_list_len
= 8 * cli
->num_sec_dev_types
;
408 os_memcpy(dev
->info
.wps_sec_dev_type_list
, cli
->sec_dev_types
,
409 dev
->info
.wps_sec_dev_type_list_len
);
413 static int p2p_add_group_clients(struct p2p_data
*p2p
, const u8
*go_dev_addr
,
414 const u8
*go_interface_addr
, int freq
,
415 const u8
*gi
, size_t gi_len
)
417 struct p2p_group_info info
;
419 struct p2p_device
*dev
;
424 if (p2p_group_info_parse(gi
, gi_len
, &info
) < 0)
428 * Clear old data for this group; if the devices are still in the
429 * group, the information will be restored in the loop following this.
431 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
432 if (os_memcmp(dev
->member_in_go_iface
, go_interface_addr
,
434 os_memset(dev
->member_in_go_iface
, 0, ETH_ALEN
);
435 os_memset(dev
->member_in_go_dev
, 0, ETH_ALEN
);
439 for (c
= 0; c
< info
.num_clients
; c
++) {
440 struct p2p_client_info
*cli
= &info
.client
[c
];
441 if (os_memcmp(cli
->p2p_device_addr
, p2p
->cfg
->dev_addr
,
443 continue; /* ignore our own entry */
444 dev
= p2p_get_device(p2p
, cli
->p2p_device_addr
);
447 * Update information only if we have not received this
448 * directly from the client.
450 if (dev
->flags
& (P2P_DEV_GROUP_CLIENT_ONLY
|
451 P2P_DEV_PROBE_REQ_ONLY
))
452 p2p_copy_client_info(dev
, cli
);
453 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
454 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
457 dev
= p2p_create_device(p2p
, cli
->p2p_device_addr
);
460 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
461 p2p_copy_client_info(dev
, cli
);
462 dev
->oper_freq
= freq
;
463 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
,
464 dev
->info
.p2p_device_addr
,
466 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
469 os_memcpy(dev
->interface_addr
, cli
->p2p_interface_addr
,
471 os_get_time(&dev
->last_seen
);
472 os_memcpy(dev
->member_in_go_dev
, go_dev_addr
, ETH_ALEN
);
473 os_memcpy(dev
->member_in_go_iface
, go_interface_addr
,
481 static void p2p_copy_wps_info(struct p2p_device
*dev
, int probe_req
,
482 const struct p2p_message
*msg
)
484 os_memcpy(dev
->info
.device_name
, msg
->device_name
,
485 sizeof(dev
->info
.device_name
));
487 if (msg
->manufacturer
&&
488 msg
->manufacturer_len
< sizeof(dev
->info
.manufacturer
)) {
489 os_memset(dev
->info
.manufacturer
, 0,
490 sizeof(dev
->info
.manufacturer
));
491 os_memcpy(dev
->info
.manufacturer
, msg
->manufacturer
,
492 msg
->manufacturer_len
);
495 if (msg
->model_name
&&
496 msg
->model_name_len
< sizeof(dev
->info
.model_name
)) {
497 os_memset(dev
->info
.model_name
, 0,
498 sizeof(dev
->info
.model_name
));
499 os_memcpy(dev
->info
.model_name
, msg
->model_name
,
500 msg
->model_name_len
);
503 if (msg
->model_number
&&
504 msg
->model_number_len
< sizeof(dev
->info
.model_number
)) {
505 os_memset(dev
->info
.model_number
, 0,
506 sizeof(dev
->info
.model_number
));
507 os_memcpy(dev
->info
.model_number
, msg
->model_number
,
508 msg
->model_number_len
);
511 if (msg
->serial_number
&&
512 msg
->serial_number_len
< sizeof(dev
->info
.serial_number
)) {
513 os_memset(dev
->info
.serial_number
, 0,
514 sizeof(dev
->info
.serial_number
));
515 os_memcpy(dev
->info
.serial_number
, msg
->serial_number
,
516 msg
->serial_number_len
);
519 if (msg
->pri_dev_type
)
520 os_memcpy(dev
->info
.pri_dev_type
, msg
->pri_dev_type
,
521 sizeof(dev
->info
.pri_dev_type
));
522 else if (msg
->wps_pri_dev_type
)
523 os_memcpy(dev
->info
.pri_dev_type
, msg
->wps_pri_dev_type
,
524 sizeof(dev
->info
.pri_dev_type
));
526 if (msg
->wps_sec_dev_type_list
) {
527 os_memcpy(dev
->info
.wps_sec_dev_type_list
,
528 msg
->wps_sec_dev_type_list
,
529 msg
->wps_sec_dev_type_list_len
);
530 dev
->info
.wps_sec_dev_type_list_len
=
531 msg
->wps_sec_dev_type_list_len
;
534 if (msg
->capability
) {
535 dev
->info
.dev_capab
= msg
->capability
[0];
536 dev
->info
.group_capab
= msg
->capability
[1];
539 if (msg
->ext_listen_timing
) {
540 dev
->ext_listen_period
= WPA_GET_LE16(msg
->ext_listen_timing
);
541 dev
->ext_listen_interval
=
542 WPA_GET_LE16(msg
->ext_listen_timing
+ 2);
546 dev
->info
.config_methods
= msg
->config_methods
?
547 msg
->config_methods
: msg
->wps_config_methods
;
553 * p2p_add_device - Add peer entries based on scan results
554 * @p2p: P2P module context from p2p_init()
555 * @addr: Source address of Beacon or Probe Response frame (may be either
556 * P2P Device Address or P2P Interface Address)
557 * @level: Signal level (signal strength of the received frame from the peer)
558 * @freq: Frequency on which the Beacon or Probe Response frame was received
559 * @ies: IEs from the Beacon or Probe Response frame
560 * @ies_len: Length of ies buffer in octets
561 * Returns: 0 on success, -1 on failure
563 * If the scan result is for a GO, the clients in the group will also be added
564 * to the peer table. This function can also be used with some other frames
565 * like Provision Discovery Request that contains P2P Capability and P2P Device
568 int p2p_add_device(struct p2p_data
*p2p
, const u8
*addr
, int freq
, int level
,
569 const u8
*ies
, size_t ies_len
)
571 struct p2p_device
*dev
;
572 struct p2p_message msg
;
573 const u8
*p2p_dev_addr
;
576 os_memset(&msg
, 0, sizeof(msg
));
577 if (p2p_parse_ies(ies
, ies_len
, &msg
)) {
578 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
579 "P2P: Failed to parse P2P IE for a device entry");
580 p2p_parse_free(&msg
);
584 if (msg
.p2p_device_addr
)
585 p2p_dev_addr
= msg
.p2p_device_addr
;
586 else if (msg
.device_id
)
587 p2p_dev_addr
= msg
.device_id
;
589 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
590 "P2P: Ignore scan data without P2P Device Info or "
592 p2p_parse_free(&msg
);
596 if (!is_zero_ether_addr(p2p
->peer_filter
) &&
597 os_memcmp(p2p_dev_addr
, p2p
->peer_filter
, ETH_ALEN
) != 0) {
598 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Do not add peer "
599 "filter for " MACSTR
" due to peer filter",
600 MAC2STR(p2p_dev_addr
));
604 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
606 p2p_parse_free(&msg
);
609 os_get_time(&dev
->last_seen
);
610 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
);
612 if (os_memcmp(addr
, p2p_dev_addr
, ETH_ALEN
) != 0)
613 os_memcpy(dev
->interface_addr
, addr
, ETH_ALEN
);
615 (msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
616 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
618 os_memcpy(dev
->oper_ssid
, msg
.ssid
+ 2, msg
.ssid
[1]);
619 dev
->oper_ssid_len
= msg
.ssid
[1];
622 if (freq
>= 2412 && freq
<= 2484 && msg
.ds_params
&&
623 *msg
.ds_params
>= 1 && *msg
.ds_params
<= 14) {
625 if (*msg
.ds_params
== 14)
628 ds_freq
= 2407 + *msg
.ds_params
* 5;
629 if (freq
!= ds_freq
) {
630 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
631 "P2P: Update Listen frequency based on DS "
632 "Parameter Set IE: %d -> %d MHz",
638 if (dev
->listen_freq
&& dev
->listen_freq
!= freq
) {
639 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
640 "P2P: Update Listen frequency based on scan "
641 "results (" MACSTR
" %d -> %d MHz (DS param %d)",
642 MAC2STR(dev
->info
.p2p_device_addr
), dev
->listen_freq
,
643 freq
, msg
.ds_params
? *msg
.ds_params
: -1);
645 dev
->listen_freq
= freq
;
647 dev
->oper_freq
= freq
;
648 dev
->info
.level
= level
;
650 p2p_copy_wps_info(dev
, 0, &msg
);
652 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
653 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
654 dev
->info
.wps_vendor_ext
[i
] = NULL
;
657 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
658 if (msg
.wps_vendor_ext
[i
] == NULL
)
660 dev
->info
.wps_vendor_ext
[i
] = wpabuf_alloc_copy(
661 msg
.wps_vendor_ext
[i
], msg
.wps_vendor_ext_len
[i
]);
662 if (dev
->info
.wps_vendor_ext
[i
] == NULL
)
666 p2p_add_group_clients(p2p
, p2p_dev_addr
, addr
, freq
, msg
.group_info
,
669 p2p_parse_free(&msg
);
671 if (p2p_pending_sd_req(p2p
, dev
))
672 dev
->flags
|= P2P_DEV_SD_SCHEDULE
;
674 if (dev
->flags
& P2P_DEV_REPORTED
)
677 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
678 "P2P: Peer found with Listen frequency %d MHz", freq
);
679 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
680 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
681 "P2P: Do not report rejected device");
685 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
686 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
687 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
693 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
)
697 if (p2p
->go_neg_peer
== dev
) {
699 * If GO Negotiation is in progress, report that it has failed.
701 p2p_go_neg_failed(p2p
, dev
, -1);
702 p2p
->go_neg_peer
= NULL
;
704 if (p2p
->invite_peer
== dev
)
705 p2p
->invite_peer
= NULL
;
706 if (p2p
->sd_peer
== dev
)
708 if (p2p
->pending_client_disc_go
== dev
)
709 p2p
->pending_client_disc_go
= NULL
;
711 /* dev_lost() device, but only if it was previously dev_found() */
712 if (dev
->flags
& P2P_DEV_REPORTED_ONCE
)
713 p2p
->cfg
->dev_lost(p2p
->cfg
->cb_ctx
,
714 dev
->info
.p2p_device_addr
);
716 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
717 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
718 dev
->info
.wps_vendor_ext
[i
] = NULL
;
725 static int p2p_get_next_prog_freq(struct p2p_data
*p2p
)
727 struct p2p_channels
*c
;
728 struct p2p_reg_class
*cla
;
735 c
= &p2p
->cfg
->channels
;
736 for (cl
= 0; cl
< c
->reg_classes
; cl
++) {
737 cla
= &c
->reg_class
[cl
];
738 if (cla
->reg_class
!= p2p
->last_prog_scan_class
)
740 for (ch
= 0; ch
< cla
->channels
; ch
++) {
741 if (cla
->channel
[ch
] == p2p
->last_prog_scan_chan
) {
751 /* Start from beginning */
752 reg_class
= c
->reg_class
[0].reg_class
;
753 channel
= c
->reg_class
[0].channel
[0];
755 /* Pick the next channel */
757 if (ch
== cla
->channels
) {
759 if (cl
== c
->reg_classes
)
763 reg_class
= c
->reg_class
[cl
].reg_class
;
764 channel
= c
->reg_class
[cl
].channel
[ch
];
767 freq
= p2p_channel_to_freq(p2p
->cfg
->country
, reg_class
, channel
);
768 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Next progressive search "
769 "channel: reg_class %u channel %u -> %d MHz",
770 reg_class
, channel
, freq
);
771 p2p
->last_prog_scan_class
= reg_class
;
772 p2p
->last_prog_scan_chan
= channel
;
774 if (freq
== 2412 || freq
== 2437 || freq
== 2462)
775 return 0; /* No need to add social channels */
780 static void p2p_search(struct p2p_data
*p2p
)
783 enum p2p_scan_type type
;
785 if (p2p
->drv_in_listen
) {
786 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Driver is still "
787 "in Listen state - wait for it to end before "
791 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
793 if (p2p
->go_neg_peer
) {
795 * Only scan the known listen frequency of the peer
796 * during GO Negotiation start.
798 freq
= p2p
->go_neg_peer
->listen_freq
;
800 freq
= p2p
->go_neg_peer
->oper_freq
;
801 type
= P2P_SCAN_SPECIFIC
;
802 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Starting search "
803 "for freq %u (GO Neg)", freq
);
804 } else if (p2p
->invite_peer
) {
806 * Only scan the known listen frequency of the peer
807 * during Invite start.
809 freq
= p2p
->invite_peer
->listen_freq
;
811 freq
= p2p
->invite_peer
->oper_freq
;
812 type
= P2P_SCAN_SPECIFIC
;
813 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Starting search "
814 "for freq %u (Invite)", freq
);
815 } else if (p2p
->find_type
== P2P_FIND_PROGRESSIVE
&&
816 (freq
= p2p_get_next_prog_freq(p2p
)) > 0) {
817 type
= P2P_SCAN_SOCIAL_PLUS_ONE
;
818 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Starting search "
819 "(+ freq %u)", freq
);
821 type
= P2P_SCAN_SOCIAL
;
822 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Starting search");
825 if (p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, type
, freq
,
826 p2p
->num_req_dev_types
, p2p
->req_dev_types
,
827 p2p
->find_dev_id
) < 0) {
828 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
829 "P2P: Scan request failed");
830 p2p_continue_find(p2p
);
832 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Running p2p_scan");
833 p2p
->p2p_scan_running
= 1;
834 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
835 eloop_register_timeout(P2P_SCAN_TIMEOUT
, 0, p2p_scan_timeout
,
841 static void p2p_find_timeout(void *eloop_ctx
, void *timeout_ctx
)
843 struct p2p_data
*p2p
= eloop_ctx
;
844 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Find timeout -> stop");
849 static int p2p_run_after_scan(struct p2p_data
*p2p
)
851 struct p2p_device
*dev
;
852 enum p2p_after_scan op
;
854 if (p2p
->after_scan_tx
) {
855 /* TODO: schedule p2p_run_after_scan to be called from TX
856 * status callback(?) */
857 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Send pending "
858 "Action frame at p2p_scan completion");
859 p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
,
860 p2p
->after_scan_tx
->freq
,
861 p2p
->after_scan_tx
->dst
,
862 p2p
->after_scan_tx
->src
,
863 p2p
->after_scan_tx
->bssid
,
864 (u8
*) (p2p
->after_scan_tx
+ 1),
865 p2p
->after_scan_tx
->len
,
866 p2p
->after_scan_tx
->wait_time
);
867 os_free(p2p
->after_scan_tx
);
868 p2p
->after_scan_tx
= NULL
;
872 op
= p2p
->start_after_scan
;
873 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
875 case P2P_AFTER_SCAN_NOTHING
:
877 case P2P_AFTER_SCAN_LISTEN
:
878 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Start previously "
879 "requested Listen state");
880 p2p_listen(p2p
, p2p
->pending_listen_sec
* 1000 +
881 p2p
->pending_listen_usec
/ 1000);
883 case P2P_AFTER_SCAN_CONNECT
:
884 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Start previously "
885 "requested connect with " MACSTR
,
886 MAC2STR(p2p
->after_scan_peer
));
887 dev
= p2p_get_device(p2p
, p2p
->after_scan_peer
);
889 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Peer not "
893 p2p_connect_send(p2p
, dev
);
901 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
)
903 struct p2p_data
*p2p
= eloop_ctx
;
905 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: p2p_scan timeout "
906 "(running=%d)", p2p
->p2p_scan_running
);
907 running
= p2p
->p2p_scan_running
;
908 /* Make sure we recover from missed scan results callback */
909 p2p
->p2p_scan_running
= 0;
912 p2p_run_after_scan(p2p
);
916 static void p2p_free_req_dev_types(struct p2p_data
*p2p
)
918 p2p
->num_req_dev_types
= 0;
919 os_free(p2p
->req_dev_types
);
920 p2p
->req_dev_types
= NULL
;
924 int p2p_find(struct p2p_data
*p2p
, unsigned int timeout
,
925 enum p2p_discovery_type type
,
926 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
931 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Starting find (type=%d)",
933 if (p2p
->p2p_scan_running
) {
934 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: p2p_scan is "
938 p2p_free_req_dev_types(p2p
);
939 if (req_dev_types
&& num_req_dev_types
) {
940 p2p
->req_dev_types
= os_malloc(num_req_dev_types
*
942 if (p2p
->req_dev_types
== NULL
)
944 os_memcpy(p2p
->req_dev_types
, req_dev_types
,
945 num_req_dev_types
* WPS_DEV_TYPE_LEN
);
946 p2p
->num_req_dev_types
= num_req_dev_types
;
950 os_memcpy(p2p
->find_dev_id_buf
, dev_id
, ETH_ALEN
);
951 p2p
->find_dev_id
= p2p
->find_dev_id_buf
;
953 p2p
->find_dev_id
= NULL
;
955 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
956 p2p_clear_timeout(p2p
);
957 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
958 p2p
->find_type
= type
;
959 p2p_device_clear_reported(p2p
);
960 p2p_set_state(p2p
, P2P_SEARCH
);
961 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
962 p2p
->last_p2p_find_timeout
= timeout
;
964 eloop_register_timeout(timeout
, 0, p2p_find_timeout
,
967 case P2P_FIND_START_WITH_FULL
:
968 case P2P_FIND_PROGRESSIVE
:
969 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_FULL
, 0,
970 p2p
->num_req_dev_types
,
971 p2p
->req_dev_types
, dev_id
);
973 case P2P_FIND_ONLY_SOCIAL
:
974 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_SOCIAL
, 0,
975 p2p
->num_req_dev_types
,
976 p2p
->req_dev_types
, dev_id
);
983 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Running p2p_scan");
984 p2p
->p2p_scan_running
= 1;
985 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
986 eloop_register_timeout(P2P_SCAN_TIMEOUT
, 0, p2p_scan_timeout
,
988 } else if (res
== 1) {
989 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Could not start "
990 "p2p_scan at this point - will try again after "
991 "previous scan completes");
993 p2p_set_state(p2p
, P2P_SEARCH_WHEN_READY
);
994 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
996 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Failed to start "
998 p2p_set_state(p2p
, P2P_IDLE
);
999 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1006 int p2p_other_scan_completed(struct p2p_data
*p2p
)
1008 if (p2p
->state
!= P2P_SEARCH_WHEN_READY
)
1010 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Starting pending P2P find "
1011 "now that previous scan was completed");
1012 if (p2p_find(p2p
, p2p
->last_p2p_find_timeout
, p2p
->find_type
,
1013 p2p
->num_req_dev_types
, p2p
->req_dev_types
,
1014 p2p
->find_dev_id
) < 0)
1020 void p2p_stop_find_for_freq(struct p2p_data
*p2p
, int freq
)
1022 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Stopping find");
1023 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1024 p2p_clear_timeout(p2p
);
1025 if (p2p
->state
== P2P_SEARCH
)
1026 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_INFO
, P2P_EVENT_FIND_STOPPED
);
1027 p2p_set_state(p2p
, P2P_IDLE
);
1028 p2p_free_req_dev_types(p2p
);
1029 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1030 p2p
->go_neg_peer
= NULL
;
1031 p2p
->sd_peer
= NULL
;
1032 p2p
->invite_peer
= NULL
;
1033 if (freq
> 0 && p2p
->drv_in_listen
== freq
&& p2p
->in_listen
) {
1034 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Skip stop_listen "
1035 "since we are on correct channel for response");
1038 if (p2p
->drv_in_listen
) {
1040 * The driver may not deliver callback to p2p_listen_end()
1041 * when the operation gets canceled, so clear the internal
1042 * variable that is tracking driver state.
1044 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Clear "
1045 "drv_in_listen (%d)", p2p
->drv_in_listen
);
1046 p2p
->drv_in_listen
= 0;
1048 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1052 void p2p_stop_find(struct p2p_data
*p2p
)
1054 p2p_stop_find_for_freq(p2p
, 0);
1058 static int p2p_prepare_channel(struct p2p_data
*p2p
, unsigned int force_freq
)
1061 u8 op_reg_class
, op_channel
;
1062 if (p2p_freq_to_channel(p2p
->cfg
->country
, force_freq
,
1063 &op_reg_class
, &op_channel
) < 0) {
1064 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1065 "P2P: Unsupported frequency %u MHz",
1069 if (!p2p_channels_includes(&p2p
->cfg
->channels
, op_reg_class
,
1071 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1072 "P2P: Frequency %u MHz (oper_class %u "
1073 "channel %u) not allowed for P2P",
1074 force_freq
, op_reg_class
, op_channel
);
1077 p2p
->op_reg_class
= op_reg_class
;
1078 p2p
->op_channel
= op_channel
;
1079 p2p
->channels
.reg_classes
= 1;
1080 p2p
->channels
.reg_class
[0].channels
= 1;
1081 p2p
->channels
.reg_class
[0].reg_class
= p2p
->op_reg_class
;
1082 p2p
->channels
.reg_class
[0].channel
[0] = p2p
->op_channel
;
1084 u8 op_reg_class
, op_channel
;
1086 if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_overall
> 0 &&
1087 p2p_supported_freq(p2p
, p2p
->best_freq_overall
) &&
1088 p2p_freq_to_channel(p2p
->cfg
->country
,
1089 p2p
->best_freq_overall
,
1090 &op_reg_class
, &op_channel
) == 0) {
1091 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1092 "P2P: Select best overall channel as "
1093 "operating channel preference");
1094 p2p
->op_reg_class
= op_reg_class
;
1095 p2p
->op_channel
= op_channel
;
1096 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_5
> 0 &&
1097 p2p_supported_freq(p2p
, p2p
->best_freq_5
) &&
1098 p2p_freq_to_channel(p2p
->cfg
->country
,
1100 &op_reg_class
, &op_channel
) ==
1102 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1103 "P2P: Select best 5 GHz channel as "
1104 "operating channel preference");
1105 p2p
->op_reg_class
= op_reg_class
;
1106 p2p
->op_channel
= op_channel
;
1107 } else if (!p2p
->cfg
->cfg_op_channel
&&
1108 p2p
->best_freq_24
> 0 &&
1109 p2p_supported_freq(p2p
, p2p
->best_freq_24
) &&
1110 p2p_freq_to_channel(p2p
->cfg
->country
,
1112 &op_reg_class
, &op_channel
) ==
1114 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1115 "P2P: Select best 2.4 GHz channel as "
1116 "operating channel preference");
1117 p2p
->op_reg_class
= op_reg_class
;
1118 p2p
->op_channel
= op_channel
;
1120 p2p
->op_reg_class
= p2p
->cfg
->op_reg_class
;
1121 p2p
->op_channel
= p2p
->cfg
->op_channel
;
1124 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1125 sizeof(struct p2p_channels
));
1127 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1128 "P2P: Own preference for operation channel: "
1129 "Operating Class %u Channel %u%s",
1130 p2p
->op_reg_class
, p2p
->op_channel
,
1131 force_freq
? " (forced)" : "");
1137 static void p2p_set_dev_persistent(struct p2p_device
*dev
,
1138 int persistent_group
)
1140 switch (persistent_group
) {
1142 dev
->flags
&= ~(P2P_DEV_PREFER_PERSISTENT_GROUP
|
1143 P2P_DEV_PREFER_PERSISTENT_RECONN
);
1146 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
;
1147 dev
->flags
&= ~P2P_DEV_PREFER_PERSISTENT_RECONN
;
1150 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
|
1151 P2P_DEV_PREFER_PERSISTENT_RECONN
;
1157 int p2p_connect(struct p2p_data
*p2p
, const u8
*peer_addr
,
1158 enum p2p_wps_method wps_method
,
1159 int go_intent
, const u8
*own_interface_addr
,
1160 unsigned int force_freq
, int persistent_group
)
1162 struct p2p_device
*dev
;
1164 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1165 "P2P: Request to start group negotiation - peer=" MACSTR
1166 " GO Intent=%d Intended Interface Address=" MACSTR
1167 " wps_method=%d persistent_group=%d",
1168 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1169 wps_method
, persistent_group
);
1171 if (p2p_prepare_channel(p2p
, force_freq
) < 0)
1175 dev
= p2p_get_device(p2p
, peer_addr
);
1176 if (dev
== NULL
|| (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)) {
1177 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1178 "P2P: Cannot connect to unknown P2P Device " MACSTR
,
1179 MAC2STR(peer_addr
));
1183 if (dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
) {
1184 if (!(dev
->info
.dev_capab
&
1185 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
)) {
1186 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1187 "P2P: Cannot connect to P2P Device " MACSTR
1188 " that is in a group and is not discoverable",
1189 MAC2STR(peer_addr
));
1192 if (dev
->oper_freq
<= 0) {
1193 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1194 "P2P: Cannot connect to P2P Device " MACSTR
1195 " with incomplete information",
1196 MAC2STR(peer_addr
));
1201 * First, try to connect directly. If the peer does not
1202 * acknowledge frames, assume it is sleeping and use device
1203 * discoverability via the GO at that point.
1207 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1208 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1209 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
1210 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
1211 dev
->connect_reqs
= 0;
1212 dev
->go_neg_req_sent
= 0;
1213 dev
->go_state
= UNKNOWN_GO
;
1214 p2p_set_dev_persistent(dev
, persistent_group
);
1215 p2p
->go_intent
= go_intent
;
1216 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1218 if (p2p
->state
!= P2P_IDLE
)
1221 if (p2p
->after_scan_tx
) {
1223 * We need to drop the pending frame to avoid issues with the
1224 * new GO Negotiation, e.g., when the pending frame was from a
1225 * previous attempt at starting a GO Negotiation.
1227 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Dropped "
1228 "previous pending Action frame TX that was waiting "
1229 "for p2p_scan completion");
1230 os_free(p2p
->after_scan_tx
);
1231 p2p
->after_scan_tx
= NULL
;
1234 dev
->wps_method
= wps_method
;
1235 dev
->status
= P2P_SC_SUCCESS
;
1238 dev
->flags
|= P2P_DEV_FORCE_FREQ
;
1240 dev
->flags
&= ~P2P_DEV_FORCE_FREQ
;
1242 if (p2p
->p2p_scan_running
) {
1243 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1244 "P2P: p2p_scan running - delay connect send");
1245 p2p
->start_after_scan
= P2P_AFTER_SCAN_CONNECT
;
1246 os_memcpy(p2p
->after_scan_peer
, peer_addr
, ETH_ALEN
);
1249 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1251 return p2p_connect_send(p2p
, dev
);
1255 int p2p_authorize(struct p2p_data
*p2p
, const u8
*peer_addr
,
1256 enum p2p_wps_method wps_method
,
1257 int go_intent
, const u8
*own_interface_addr
,
1258 unsigned int force_freq
, int persistent_group
)
1260 struct p2p_device
*dev
;
1262 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1263 "P2P: Request to authorize group negotiation - peer=" MACSTR
1264 " GO Intent=%d Intended Interface Address=" MACSTR
1265 " wps_method=%d persistent_group=%d",
1266 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1267 wps_method
, persistent_group
);
1269 if (p2p_prepare_channel(p2p
, force_freq
) < 0)
1272 dev
= p2p_get_device(p2p
, peer_addr
);
1274 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1275 "P2P: Cannot authorize unknown P2P Device " MACSTR
,
1276 MAC2STR(peer_addr
));
1280 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1281 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1282 dev
->go_neg_req_sent
= 0;
1283 dev
->go_state
= UNKNOWN_GO
;
1284 p2p_set_dev_persistent(dev
, persistent_group
);
1285 p2p
->go_intent
= go_intent
;
1286 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1288 dev
->wps_method
= wps_method
;
1289 dev
->status
= P2P_SC_SUCCESS
;
1292 dev
->flags
|= P2P_DEV_FORCE_FREQ
;
1294 dev
->flags
&= ~P2P_DEV_FORCE_FREQ
;
1300 void p2p_add_dev_info(struct p2p_data
*p2p
, const u8
*addr
,
1301 struct p2p_device
*dev
, struct p2p_message
*msg
)
1303 os_get_time(&dev
->last_seen
);
1305 p2p_copy_wps_info(dev
, 0, msg
);
1307 if (msg
->listen_channel
) {
1309 freq
= p2p_channel_to_freq((char *) msg
->listen_channel
,
1310 msg
->listen_channel
[3],
1311 msg
->listen_channel
[4]);
1313 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1314 "P2P: Unknown peer Listen channel: "
1315 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1316 msg
->listen_channel
[0],
1317 msg
->listen_channel
[1],
1318 msg
->listen_channel
[2],
1319 msg
->listen_channel
[3],
1320 msg
->listen_channel
[4]);
1322 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Update "
1323 "peer " MACSTR
" Listen channel: %u -> %u MHz",
1324 MAC2STR(dev
->info
.p2p_device_addr
),
1325 dev
->listen_freq
, freq
);
1326 dev
->listen_freq
= freq
;
1330 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
1331 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
1332 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1333 "P2P: Completed device entry based on data from "
1334 "GO Negotiation Request");
1336 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1337 "P2P: Created device entry based on GO Neg Req: "
1338 MACSTR
" dev_capab=0x%x group_capab=0x%x name='%s' "
1340 MAC2STR(dev
->info
.p2p_device_addr
),
1341 dev
->info
.dev_capab
, dev
->info
.group_capab
,
1342 dev
->info
.device_name
, dev
->listen_freq
);
1345 dev
->flags
&= ~P2P_DEV_GROUP_CLIENT_ONLY
;
1347 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
1348 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1349 "P2P: Do not report rejected device");
1353 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
1354 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
1355 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
1359 void p2p_build_ssid(struct p2p_data
*p2p
, u8
*ssid
, size_t *ssid_len
)
1361 os_memcpy(ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
1362 p2p_random((char *) &ssid
[P2P_WILDCARD_SSID_LEN
], 2);
1363 os_memcpy(&ssid
[P2P_WILDCARD_SSID_LEN
+ 2],
1364 p2p
->cfg
->ssid_postfix
, p2p
->cfg
->ssid_postfix_len
);
1365 *ssid_len
= P2P_WILDCARD_SSID_LEN
+ 2 + p2p
->cfg
->ssid_postfix_len
;
1369 int p2p_go_params(struct p2p_data
*p2p
, struct p2p_go_neg_results
*params
)
1371 p2p_build_ssid(p2p
, params
->ssid
, ¶ms
->ssid_len
);
1372 p2p_random(params
->passphrase
, 8);
1377 void p2p_go_complete(struct p2p_data
*p2p
, struct p2p_device
*peer
)
1379 struct p2p_go_neg_results res
;
1380 int go
= peer
->go_state
== LOCAL_GO
;
1381 struct p2p_channels intersection
;
1385 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1386 "P2P: GO Negotiation with " MACSTR
" completed (%s will be "
1387 "GO)", MAC2STR(peer
->info
.p2p_device_addr
),
1388 go
? "local end" : "peer");
1390 os_memset(&res
, 0, sizeof(res
));
1392 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
1393 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
1394 res
.wps_method
= peer
->wps_method
;
1395 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
) {
1396 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_RECONN
)
1397 res
.persistent_group
= 2;
1399 res
.persistent_group
= 1;
1403 /* Setup AP mode for WPS provisioning */
1404 res
.freq
= p2p_channel_to_freq(p2p
->cfg
->country
,
1407 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1408 res
.ssid_len
= p2p
->ssid_len
;
1409 p2p_random(res
.passphrase
, 8);
1411 res
.freq
= peer
->oper_freq
;
1412 if (p2p
->ssid_len
) {
1413 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1414 res
.ssid_len
= p2p
->ssid_len
;
1418 p2p_channels_intersect(&p2p
->channels
, &peer
->channels
,
1421 for (i
= 0; i
< intersection
.reg_classes
; i
++) {
1422 struct p2p_reg_class
*c
= &intersection
.reg_class
[i
];
1423 if (freqs
+ 1 == P2P_MAX_CHANNELS
)
1425 for (j
= 0; j
< c
->channels
; j
++) {
1427 if (freqs
+ 1 == P2P_MAX_CHANNELS
)
1429 freq
= p2p_channel_to_freq(peer
->country
, c
->reg_class
,
1433 res
.freq_list
[freqs
++] = freq
;
1437 res
.peer_config_timeout
= go
? peer
->client_timeout
: peer
->go_timeout
;
1439 p2p_clear_timeout(p2p
);
1441 peer
->go_neg_req_sent
= 0;
1442 peer
->wps_method
= WPS_NOT_READY
;
1444 p2p_set_state(p2p
, P2P_PROVISIONING
);
1445 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
1449 static void p2p_rx_p2p_action(struct p2p_data
*p2p
, const u8
*sa
,
1450 const u8
*data
, size_t len
, int rx_freq
)
1452 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1453 "P2P: RX P2P Public Action from " MACSTR
, MAC2STR(sa
));
1454 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Public Action contents", data
, len
);
1460 case P2P_GO_NEG_REQ
:
1461 p2p_process_go_neg_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1463 case P2P_GO_NEG_RESP
:
1464 p2p_process_go_neg_resp(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1466 case P2P_GO_NEG_CONF
:
1467 p2p_process_go_neg_conf(p2p
, sa
, data
+ 1, len
- 1);
1469 case P2P_INVITATION_REQ
:
1470 p2p_process_invitation_req(p2p
, sa
, data
+ 1, len
- 1,
1473 case P2P_INVITATION_RESP
:
1474 p2p_process_invitation_resp(p2p
, sa
, data
+ 1, len
- 1);
1476 case P2P_PROV_DISC_REQ
:
1477 p2p_process_prov_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1479 case P2P_PROV_DISC_RESP
:
1480 p2p_process_prov_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1482 case P2P_DEV_DISC_REQ
:
1483 p2p_process_dev_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1485 case P2P_DEV_DISC_RESP
:
1486 p2p_process_dev_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1489 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1490 "P2P: Unsupported P2P Public Action frame type %d",
1497 static void p2p_rx_action_public(struct p2p_data
*p2p
, const u8
*da
,
1498 const u8
*sa
, const u8
*bssid
, const u8
*data
,
1499 size_t len
, int freq
)
1505 case WLAN_PA_VENDOR_SPECIFIC
:
1510 if (WPA_GET_BE24(data
) != OUI_WFA
)
1518 if (*data
!= P2P_OUI_TYPE
)
1521 p2p_rx_p2p_action(p2p
, sa
, data
+ 1, len
- 1, freq
);
1523 case WLAN_PA_GAS_INITIAL_REQ
:
1524 p2p_rx_gas_initial_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1526 case WLAN_PA_GAS_INITIAL_RESP
:
1527 p2p_rx_gas_initial_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1529 case WLAN_PA_GAS_COMEBACK_REQ
:
1530 p2p_rx_gas_comeback_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1532 case WLAN_PA_GAS_COMEBACK_RESP
:
1533 p2p_rx_gas_comeback_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1539 void p2p_rx_action(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
1540 const u8
*bssid
, u8 category
,
1541 const u8
*data
, size_t len
, int freq
)
1543 if (category
== WLAN_ACTION_PUBLIC
) {
1544 p2p_rx_action_public(p2p
, da
, sa
, bssid
, data
, len
, freq
);
1548 if (category
!= WLAN_ACTION_VENDOR_SPECIFIC
)
1554 if (WPA_GET_BE24(data
) != OUI_WFA
)
1559 if (*data
!= P2P_OUI_TYPE
)
1564 /* P2P action frame */
1565 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1566 "P2P: RX P2P Action from " MACSTR
, MAC2STR(sa
));
1567 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Action contents", data
, len
);
1573 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1574 "P2P: Received P2P Action - Notice of Absence");
1577 case P2P_PRESENCE_REQ
:
1578 p2p_process_presence_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1580 case P2P_PRESENCE_RESP
:
1581 p2p_process_presence_resp(p2p
, da
, sa
, data
+ 1, len
- 1);
1583 case P2P_GO_DISC_REQ
:
1584 p2p_process_go_disc_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1587 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1588 "P2P: Received P2P Action - unknown type %u", data
[0]);
1594 static void p2p_go_neg_start(void *eloop_ctx
, void *timeout_ctx
)
1596 struct p2p_data
*p2p
= eloop_ctx
;
1597 if (p2p
->go_neg_peer
== NULL
)
1599 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1600 p2p
->go_neg_peer
->status
= P2P_SC_SUCCESS
;
1601 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
1605 static void p2p_invite_start(void *eloop_ctx
, void *timeout_ctx
)
1607 struct p2p_data
*p2p
= eloop_ctx
;
1608 if (p2p
->invite_peer
== NULL
)
1610 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1611 p2p_invite_send(p2p
, p2p
->invite_peer
, p2p
->invite_go_dev_addr
);
1615 static void p2p_add_dev_from_probe_req(struct p2p_data
*p2p
, const u8
*addr
,
1616 const u8
*ie
, size_t ie_len
)
1618 struct p2p_message msg
;
1619 struct p2p_device
*dev
;
1621 os_memset(&msg
, 0, sizeof(msg
));
1622 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0 || msg
.p2p_attributes
== NULL
)
1624 p2p_parse_free(&msg
);
1625 return; /* not a P2P probe */
1628 if (msg
.ssid
== NULL
|| msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
1629 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
1631 /* The Probe Request is not part of P2P Device Discovery. It is
1632 * not known whether the source address of the frame is the P2P
1633 * Device Address or P2P Interface Address. Do not add a new
1634 * peer entry based on this frames.
1636 p2p_parse_free(&msg
);
1640 dev
= p2p_get_device(p2p
, addr
);
1642 if (dev
->country
[0] == 0 && msg
.listen_channel
)
1643 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
1644 os_get_time(&dev
->last_seen
);
1645 p2p_parse_free(&msg
);
1646 return; /* already known */
1649 dev
= p2p_create_device(p2p
, addr
);
1651 p2p_parse_free(&msg
);
1655 os_get_time(&dev
->last_seen
);
1656 dev
->flags
|= P2P_DEV_PROBE_REQ_ONLY
;
1658 if (msg
.listen_channel
) {
1659 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
1660 dev
->listen_freq
= p2p_channel_to_freq(dev
->country
,
1661 msg
.listen_channel
[3],
1662 msg
.listen_channel
[4]);
1665 p2p_copy_wps_info(dev
, 1, &msg
);
1667 p2p_parse_free(&msg
);
1669 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1670 "P2P: Created device entry based on Probe Req: " MACSTR
1671 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
1672 MAC2STR(dev
->info
.p2p_device_addr
), dev
->info
.dev_capab
,
1673 dev
->info
.group_capab
, dev
->info
.device_name
,
1678 struct p2p_device
* p2p_add_dev_from_go_neg_req(struct p2p_data
*p2p
,
1680 struct p2p_message
*msg
)
1682 struct p2p_device
*dev
;
1684 dev
= p2p_get_device(p2p
, addr
);
1686 os_get_time(&dev
->last_seen
);
1687 return dev
; /* already known */
1690 dev
= p2p_create_device(p2p
, addr
);
1694 p2p_add_dev_info(p2p
, addr
, dev
, msg
);
1700 static int dev_type_match(const u8
*dev_type
, const u8
*req_dev_type
)
1702 if (os_memcmp(dev_type
, req_dev_type
, WPS_DEV_TYPE_LEN
) == 0)
1704 if (os_memcmp(dev_type
, req_dev_type
, 2) == 0 &&
1705 WPA_GET_BE32(&req_dev_type
[2]) == 0 &&
1706 WPA_GET_BE16(&req_dev_type
[6]) == 0)
1707 return 1; /* Category match with wildcard OUI/sub-category */
1712 int dev_type_list_match(const u8
*dev_type
, const u8
*req_dev_type
[],
1713 size_t num_req_dev_type
)
1716 for (i
= 0; i
< num_req_dev_type
; i
++) {
1717 if (dev_type_match(dev_type
, req_dev_type
[i
]))
1725 * p2p_match_dev_type - Match local device type with requested type
1726 * @p2p: P2P module context from p2p_init()
1727 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1728 * Returns: 1 on match, 0 on mismatch
1730 * This function can be used to match the Requested Device Type attribute in
1731 * WPS IE with the local device types for deciding whether to reply to a Probe
1734 int p2p_match_dev_type(struct p2p_data
*p2p
, struct wpabuf
*wps
)
1736 struct wps_parse_attr attr
;
1739 if (wps_parse_msg(wps
, &attr
))
1740 return 1; /* assume no Requested Device Type attributes */
1742 if (attr
.num_req_dev_type
== 0)
1743 return 1; /* no Requested Device Type attributes -> match */
1745 if (dev_type_list_match(p2p
->cfg
->pri_dev_type
, attr
.req_dev_type
,
1746 attr
.num_req_dev_type
))
1747 return 1; /* Own Primary Device Type matches */
1749 for (i
= 0; i
< p2p
->cfg
->num_sec_dev_types
; i
++)
1750 if (dev_type_list_match(p2p
->cfg
->sec_dev_type
[i
],
1752 attr
.num_req_dev_type
))
1753 return 1; /* Own Secondary Device Type matches */
1755 /* No matching device type found */
1760 struct wpabuf
* p2p_build_probe_resp_ies(struct p2p_data
*p2p
)
1765 buf
= wpabuf_alloc(1000);
1769 p2p_build_wps_ie(p2p
, buf
, DEV_PW_DEFAULT
, 1);
1772 len
= p2p_buf_add_ie_hdr(buf
);
1773 p2p_buf_add_capability(buf
, p2p
->dev_capab
, 0);
1774 if (p2p
->ext_listen_interval
)
1775 p2p_buf_add_ext_listen_timing(buf
, p2p
->ext_listen_period
,
1776 p2p
->ext_listen_interval
);
1777 p2p_buf_add_device_info(buf
, p2p
, NULL
);
1778 p2p_buf_update_ie_hdr(buf
, len
);
1784 static int is_11b(u8 rate
)
1786 return rate
== 0x02 || rate
== 0x04 || rate
== 0x0b || rate
== 0x16;
1790 static int supp_rates_11b_only(struct ieee802_11_elems
*elems
)
1792 int num_11b
= 0, num_others
= 0;
1795 if (elems
->supp_rates
== NULL
&& elems
->ext_supp_rates
== NULL
)
1798 for (i
= 0; elems
->supp_rates
&& i
< elems
->supp_rates_len
; i
++) {
1799 if (is_11b(elems
->supp_rates
[i
]))
1805 for (i
= 0; elems
->ext_supp_rates
&& i
< elems
->ext_supp_rates_len
;
1807 if (is_11b(elems
->ext_supp_rates
[i
]))
1813 return num_11b
> 0 && num_others
== 0;
1817 static void p2p_reply_probe(struct p2p_data
*p2p
, const u8
*addr
,
1818 const u8
*dst
, const u8
*bssid
, const u8
*ie
,
1821 struct ieee802_11_elems elems
;
1823 struct ieee80211_mgmt
*resp
;
1824 struct p2p_message msg
;
1827 if (!p2p
->in_listen
|| !p2p
->drv_in_listen
) {
1828 /* not in Listen state - ignore Probe Request */
1832 if (ieee802_11_parse_elems((u8
*) ie
, ie_len
, &elems
, 0) ==
1834 /* Ignore invalid Probe Request frames */
1838 if (elems
.p2p
== NULL
) {
1839 /* not a P2P probe - ignore it */
1843 if (dst
&& !is_broadcast_ether_addr(dst
) &&
1844 os_memcmp(dst
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
1845 /* Not sent to the broadcast address or our P2P Device Address
1850 if (bssid
&& !is_broadcast_ether_addr(bssid
)) {
1851 /* Not sent to the Wildcard BSSID */
1855 if (elems
.ssid
== NULL
|| elems
.ssid_len
!= P2P_WILDCARD_SSID_LEN
||
1856 os_memcmp(elems
.ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
) !=
1858 /* not using P2P Wildcard SSID - ignore */
1862 if (supp_rates_11b_only(&elems
)) {
1863 /* Indicates support for 11b rates only */
1867 os_memset(&msg
, 0, sizeof(msg
));
1868 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0) {
1869 /* Could not parse P2P attributes */
1873 if (msg
.device_id
&&
1874 os_memcmp(msg
.device_id
, p2p
->cfg
->dev_addr
, ETH_ALEN
!= 0)) {
1875 /* Device ID did not match */
1876 p2p_parse_free(&msg
);
1880 /* Check Requested Device Type match */
1881 if (msg
.wps_attributes
&&
1882 !p2p_match_dev_type(p2p
, msg
.wps_attributes
)) {
1883 /* No match with Requested Device Type */
1884 p2p_parse_free(&msg
);
1887 p2p_parse_free(&msg
);
1889 if (!p2p
->cfg
->send_probe_resp
)
1890 return; /* Response generated elsewhere */
1892 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1893 "P2P: Reply to P2P Probe Request in Listen state");
1896 * We do not really have a specific BSS that this frame is advertising,
1897 * so build a frame that has some information in valid format. This is
1898 * really only used for discovery purposes, not to learn exact BSS
1901 ies
= p2p_build_probe_resp_ies(p2p
);
1905 buf
= wpabuf_alloc(200 + wpabuf_len(ies
));
1912 resp
= wpabuf_put(buf
, resp
->u
.probe_resp
.variable
- (u8
*) resp
);
1914 resp
->frame_control
= host_to_le16((WLAN_FC_TYPE_MGMT
<< 2) |
1915 (WLAN_FC_STYPE_PROBE_RESP
<< 4));
1916 os_memcpy(resp
->da
, addr
, ETH_ALEN
);
1917 os_memcpy(resp
->sa
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
1918 os_memcpy(resp
->bssid
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
1919 resp
->u
.probe_resp
.beacon_int
= host_to_le16(100);
1920 /* hardware or low-level driver will setup seq_ctrl and timestamp */
1921 resp
->u
.probe_resp
.capab_info
=
1922 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE
|
1923 WLAN_CAPABILITY_PRIVACY
|
1924 WLAN_CAPABILITY_SHORT_SLOT_TIME
);
1926 wpabuf_put_u8(buf
, WLAN_EID_SSID
);
1927 wpabuf_put_u8(buf
, P2P_WILDCARD_SSID_LEN
);
1928 wpabuf_put_data(buf
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
1930 wpabuf_put_u8(buf
, WLAN_EID_SUPP_RATES
);
1931 wpabuf_put_u8(buf
, 8);
1932 wpabuf_put_u8(buf
, (60 / 5) | 0x80);
1933 wpabuf_put_u8(buf
, 90 / 5);
1934 wpabuf_put_u8(buf
, (120 / 5) | 0x80);
1935 wpabuf_put_u8(buf
, 180 / 5);
1936 wpabuf_put_u8(buf
, (240 / 5) | 0x80);
1937 wpabuf_put_u8(buf
, 360 / 5);
1938 wpabuf_put_u8(buf
, 480 / 5);
1939 wpabuf_put_u8(buf
, 540 / 5);
1941 wpabuf_put_u8(buf
, WLAN_EID_DS_PARAMS
);
1942 wpabuf_put_u8(buf
, 1);
1943 wpabuf_put_u8(buf
, p2p
->cfg
->channel
);
1945 wpabuf_put_buf(buf
, ies
);
1948 p2p
->cfg
->send_probe_resp(p2p
->cfg
->cb_ctx
, buf
);
1954 int p2p_probe_req_rx(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
1955 const u8
*bssid
, const u8
*ie
, size_t ie_len
)
1957 p2p_add_dev_from_probe_req(p2p
, addr
, ie
, ie_len
);
1959 p2p_reply_probe(p2p
, addr
, dst
, bssid
, ie
, ie_len
);
1961 if ((p2p
->state
== P2P_CONNECT
|| p2p
->state
== P2P_CONNECT_LISTEN
) &&
1963 os_memcmp(addr
, p2p
->go_neg_peer
->info
.p2p_device_addr
, ETH_ALEN
)
1965 /* Received a Probe Request from GO Negotiation peer */
1966 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1967 "P2P: Found GO Negotiation peer - try to start GO "
1968 "negotiation from timeout");
1969 eloop_register_timeout(0, 0, p2p_go_neg_start
, p2p
, NULL
);
1973 if ((p2p
->state
== P2P_INVITE
|| p2p
->state
== P2P_INVITE_LISTEN
) &&
1975 os_memcmp(addr
, p2p
->invite_peer
->info
.p2p_device_addr
, ETH_ALEN
)
1977 /* Received a Probe Request from Invite peer */
1978 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
1979 "P2P: Found Invite peer - try to start Invite from "
1981 eloop_register_timeout(0, 0, p2p_invite_start
, p2p
, NULL
);
1989 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data
*p2p
, const u8
*bssid
,
1990 u8
*buf
, size_t len
, struct wpabuf
*p2p_ie
)
1999 return 0; /* WLAN AP is not a P2P manager */
2002 * (Re)Association Request - P2P IE
2003 * P2P Capability attribute (shall be present)
2004 * P2P Interface attribute (present if concurrent device and
2005 * P2P Management is enabled)
2007 tmp
= wpabuf_alloc(200);
2011 lpos
= p2p_buf_add_ie_hdr(tmp
);
2013 if (p2p
->num_groups
> 0) {
2014 group_capab
|= P2P_GROUP_CAPAB_GROUP_OWNER
;
2015 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2016 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
) &&
2018 group_capab
|= P2P_GROUP_CAPAB_CROSS_CONN
;
2020 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, group_capab
);
2021 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2022 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
))
2023 p2p_buf_add_p2p_interface(tmp
, p2p
);
2024 p2p_buf_update_ie_hdr(tmp
, lpos
);
2026 tmplen
= wpabuf_len(tmp
);
2030 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2039 int p2p_assoc_req_ie(struct p2p_data
*p2p
, const u8
*bssid
, u8
*buf
,
2040 size_t len
, int p2p_group
, struct wpabuf
*p2p_ie
)
2044 struct p2p_device
*peer
;
2049 return p2p_assoc_req_ie_wlan_ap(p2p
, bssid
, buf
, len
, p2p_ie
);
2052 * (Re)Association Request - P2P IE
2053 * P2P Capability attribute (shall be present)
2054 * Extended Listen Timing (may be present)
2055 * P2P Device Info attribute (shall be present)
2057 tmp
= wpabuf_alloc(200);
2061 peer
= bssid
? p2p_get_device(p2p
, bssid
) : NULL
;
2063 lpos
= p2p_buf_add_ie_hdr(tmp
);
2064 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, 0);
2065 if (p2p
->ext_listen_interval
)
2066 p2p_buf_add_ext_listen_timing(tmp
, p2p
->ext_listen_period
,
2067 p2p
->ext_listen_interval
);
2068 p2p_buf_add_device_info(tmp
, p2p
, peer
);
2069 p2p_buf_update_ie_hdr(tmp
, lpos
);
2071 tmplen
= wpabuf_len(tmp
);
2075 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2084 int p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
, char *end
)
2086 struct wpabuf
*p2p_ie
;
2089 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
, P2P_IE_VENDOR_TYPE
);
2093 ret
= p2p_attr_text(p2p_ie
, buf
, end
);
2094 wpabuf_free(p2p_ie
);
2099 static void p2p_clear_go_neg(struct p2p_data
*p2p
)
2101 p2p
->go_neg_peer
= NULL
;
2102 p2p_clear_timeout(p2p
);
2103 p2p_set_state(p2p
, P2P_IDLE
);
2107 void p2p_wps_success_cb(struct p2p_data
*p2p
, const u8
*mac_addr
)
2109 if (p2p
->go_neg_peer
== NULL
) {
2110 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2111 "P2P: No pending Group Formation - "
2112 "ignore WPS registration success notification");
2113 return; /* No pending Group Formation */
2116 if (os_memcmp(mac_addr
, p2p
->go_neg_peer
->intended_addr
, ETH_ALEN
) !=
2118 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2119 "P2P: Ignore WPS registration success notification "
2120 "for " MACSTR
" (GO Negotiation peer " MACSTR
")",
2122 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2123 return; /* Ignore unexpected peer address */
2126 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2127 "P2P: Group Formation completed successfully with " MACSTR
,
2130 p2p_clear_go_neg(p2p
);
2134 void p2p_group_formation_failed(struct p2p_data
*p2p
)
2136 if (p2p
->go_neg_peer
== NULL
) {
2137 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2138 "P2P: No pending Group Formation - "
2139 "ignore group formation failure notification");
2140 return; /* No pending Group Formation */
2143 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2144 "P2P: Group Formation failed with " MACSTR
,
2145 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2147 p2p_clear_go_neg(p2p
);
2151 struct p2p_data
* p2p_init(const struct p2p_config
*cfg
)
2153 struct p2p_data
*p2p
;
2155 if (cfg
->max_peers
< 1)
2158 p2p
= os_zalloc(sizeof(*p2p
) + sizeof(*cfg
));
2161 p2p
->cfg
= (struct p2p_config
*) (p2p
+ 1);
2162 os_memcpy(p2p
->cfg
, cfg
, sizeof(*cfg
));
2164 p2p
->cfg
->dev_name
= os_strdup(cfg
->dev_name
);
2165 if (cfg
->manufacturer
)
2166 p2p
->cfg
->manufacturer
= os_strdup(cfg
->manufacturer
);
2167 if (cfg
->model_name
)
2168 p2p
->cfg
->model_name
= os_strdup(cfg
->model_name
);
2169 if (cfg
->model_number
)
2170 p2p
->cfg
->model_number
= os_strdup(cfg
->model_number
);
2171 if (cfg
->serial_number
)
2172 p2p
->cfg
->serial_number
= os_strdup(cfg
->serial_number
);
2174 p2p
->min_disc_int
= 1;
2175 p2p
->max_disc_int
= 3;
2177 os_get_random(&p2p
->next_tie_breaker
, 1);
2178 p2p
->next_tie_breaker
&= 0x01;
2179 if (cfg
->sd_request
)
2180 p2p
->dev_capab
|= P2P_DEV_CAPAB_SERVICE_DISCOVERY
;
2181 p2p
->dev_capab
|= P2P_DEV_CAPAB_INVITATION_PROCEDURE
;
2182 if (cfg
->concurrent_operations
)
2183 p2p
->dev_capab
|= P2P_DEV_CAPAB_CONCURRENT_OPER
;
2184 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
2186 dl_list_init(&p2p
->devices
);
2188 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL
, 0,
2189 p2p_expiration_timeout
, p2p
, NULL
);
2195 void p2p_deinit(struct p2p_data
*p2p
)
2197 eloop_cancel_timeout(p2p_expiration_timeout
, p2p
, NULL
);
2198 eloop_cancel_timeout(p2p_ext_listen_timeout
, p2p
, NULL
);
2199 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
2201 p2p_free_req_dev_types(p2p
);
2202 os_free(p2p
->cfg
->dev_name
);
2203 os_free(p2p
->cfg
->manufacturer
);
2204 os_free(p2p
->cfg
->model_name
);
2205 os_free(p2p
->cfg
->model_number
);
2206 os_free(p2p
->cfg
->serial_number
);
2207 os_free(p2p
->groups
);
2208 wpabuf_free(p2p
->sd_resp
);
2209 os_free(p2p
->after_scan_tx
);
2210 p2p_remove_wps_vendor_extensions(p2p
);
2215 void p2p_flush(struct p2p_data
*p2p
)
2217 struct p2p_device
*dev
, *prev
;
2218 p2p_clear_timeout(p2p
);
2219 p2p_set_state(p2p
, P2P_IDLE
);
2220 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
2221 p2p
->go_neg_peer
= NULL
;
2222 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
2223 dl_list_for_each_safe(dev
, prev
, &p2p
->devices
, struct p2p_device
,
2225 dl_list_del(&dev
->list
);
2226 p2p_device_free(p2p
, dev
);
2228 p2p_free_sd_queries(p2p
);
2229 os_free(p2p
->after_scan_tx
);
2230 p2p
->after_scan_tx
= NULL
;
2234 int p2p_unauthorize(struct p2p_data
*p2p
, const u8
*addr
)
2236 struct p2p_device
*dev
;
2238 dev
= p2p_get_device(p2p
, addr
);
2242 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Unauthorizing " MACSTR
,
2245 if (p2p
->go_neg_peer
== dev
)
2246 p2p
->go_neg_peer
= NULL
;
2248 dev
->wps_method
= WPS_NOT_READY
;
2249 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
2250 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
2252 /* Check if after_scan_tx is for this peer. If so free it */
2253 if (p2p
->after_scan_tx
&&
2254 os_memcmp(addr
, p2p
->after_scan_tx
->dst
, ETH_ALEN
) == 0) {
2255 os_free(p2p
->after_scan_tx
);
2256 p2p
->after_scan_tx
= NULL
;
2263 int p2p_set_dev_name(struct p2p_data
*p2p
, const char *dev_name
)
2265 os_free(p2p
->cfg
->dev_name
);
2267 p2p
->cfg
->dev_name
= os_strdup(dev_name
);
2268 if (p2p
->cfg
->dev_name
== NULL
)
2271 p2p
->cfg
->dev_name
= NULL
;
2276 int p2p_set_manufacturer(struct p2p_data
*p2p
, const char *manufacturer
)
2278 os_free(p2p
->cfg
->manufacturer
);
2279 p2p
->cfg
->manufacturer
= NULL
;
2281 p2p
->cfg
->manufacturer
= os_strdup(manufacturer
);
2282 if (p2p
->cfg
->manufacturer
== NULL
)
2290 int p2p_set_model_name(struct p2p_data
*p2p
, const char *model_name
)
2292 os_free(p2p
->cfg
->model_name
);
2293 p2p
->cfg
->model_name
= NULL
;
2295 p2p
->cfg
->model_name
= os_strdup(model_name
);
2296 if (p2p
->cfg
->model_name
== NULL
)
2304 int p2p_set_model_number(struct p2p_data
*p2p
, const char *model_number
)
2306 os_free(p2p
->cfg
->model_number
);
2307 p2p
->cfg
->model_number
= NULL
;
2309 p2p
->cfg
->model_number
= os_strdup(model_number
);
2310 if (p2p
->cfg
->model_number
== NULL
)
2318 int p2p_set_serial_number(struct p2p_data
*p2p
, const char *serial_number
)
2320 os_free(p2p
->cfg
->serial_number
);
2321 p2p
->cfg
->serial_number
= NULL
;
2322 if (serial_number
) {
2323 p2p
->cfg
->serial_number
= os_strdup(serial_number
);
2324 if (p2p
->cfg
->serial_number
== NULL
)
2332 void p2p_set_config_methods(struct p2p_data
*p2p
, u16 config_methods
)
2334 p2p
->cfg
->config_methods
= config_methods
;
2338 void p2p_set_uuid(struct p2p_data
*p2p
, const u8
*uuid
)
2340 os_memcpy(p2p
->cfg
->uuid
, uuid
, 16);
2344 int p2p_set_pri_dev_type(struct p2p_data
*p2p
, const u8
*pri_dev_type
)
2346 os_memcpy(p2p
->cfg
->pri_dev_type
, pri_dev_type
, 8);
2351 int p2p_set_sec_dev_types(struct p2p_data
*p2p
, const u8 dev_types
[][8],
2352 size_t num_dev_types
)
2354 if (num_dev_types
> P2P_SEC_DEVICE_TYPES
)
2355 num_dev_types
= P2P_SEC_DEVICE_TYPES
;
2356 p2p
->cfg
->num_sec_dev_types
= num_dev_types
;
2357 os_memcpy(p2p
->cfg
->sec_dev_type
, dev_types
, num_dev_types
* 8);
2362 void p2p_remove_wps_vendor_extensions(struct p2p_data
*p2p
)
2366 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
2367 wpabuf_free(p2p
->wps_vendor_ext
[i
]);
2368 p2p
->wps_vendor_ext
[i
] = NULL
;
2373 int p2p_add_wps_vendor_extension(struct p2p_data
*p2p
,
2374 const struct wpabuf
*vendor_ext
)
2378 if (vendor_ext
== NULL
)
2381 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
2382 if (p2p
->wps_vendor_ext
[i
] == NULL
)
2385 if (i
>= P2P_MAX_WPS_VENDOR_EXT
)
2388 p2p
->wps_vendor_ext
[i
] = wpabuf_dup(vendor_ext
);
2389 if (p2p
->wps_vendor_ext
[i
] == NULL
)
2396 int p2p_set_country(struct p2p_data
*p2p
, const char *country
)
2398 os_memcpy(p2p
->cfg
->country
, country
, 3);
2403 void p2p_continue_find(struct p2p_data
*p2p
)
2405 struct p2p_device
*dev
;
2406 p2p_set_state(p2p
, P2P_SEARCH
);
2407 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
2408 if (dev
->flags
& P2P_DEV_SD_SCHEDULE
) {
2409 if (p2p_start_sd(p2p
, dev
) == 0)
2413 } else if (dev
->req_config_methods
&&
2414 !(dev
->flags
& P2P_DEV_PD_FOR_JOIN
)) {
2415 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Send "
2416 "pending Provision Discovery Request to "
2417 MACSTR
" (config methods 0x%x)",
2418 MAC2STR(dev
->info
.p2p_device_addr
),
2419 dev
->req_config_methods
);
2420 if (p2p_send_prov_disc_req(p2p
, dev
, 0, 0) == 0)
2425 p2p_listen_in_find(p2p
);
2429 static void p2p_sd_cb(struct p2p_data
*p2p
, int success
)
2431 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2432 "P2P: Service Discovery Query TX callback: success=%d",
2434 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
2438 p2p
->sd_peer
->flags
&= ~P2P_DEV_SD_SCHEDULE
;
2439 p2p
->sd_peer
= NULL
;
2441 p2p_continue_find(p2p
);
2445 if (p2p
->sd_peer
== NULL
) {
2446 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2447 "P2P: No SD peer entry known");
2448 p2p_continue_find(p2p
);
2452 /* Wait for response from the peer */
2453 p2p_set_state(p2p
, P2P_SD_DURING_FIND
);
2454 p2p_set_timeout(p2p
, 0, 200000);
2459 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2460 * @p2p: P2P module context from p2p_init()
2462 static void p2p_retry_pd(struct p2p_data
*p2p
)
2464 struct p2p_device
*dev
;
2466 if (p2p
->state
!= P2P_IDLE
)
2470 * Retry the prov disc req attempt only for the peer that the user had
2471 * requested for and provided a join has not been initiated on it
2475 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
2476 if (os_memcmp(p2p
->pending_pd_devaddr
,
2477 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
2479 if (!dev
->req_config_methods
)
2481 if (dev
->flags
& P2P_DEV_PD_FOR_JOIN
)
2484 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Send "
2485 "pending Provision Discovery Request to "
2486 MACSTR
" (config methods 0x%x)",
2487 MAC2STR(dev
->info
.p2p_device_addr
),
2488 dev
->req_config_methods
);
2489 p2p_send_prov_disc_req(p2p
, dev
, 0, 0);
2495 static void p2p_prov_disc_cb(struct p2p_data
*p2p
, int success
)
2497 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2498 "P2P: Provision Discovery Request TX callback: success=%d",
2502 * Postpone resetting the pending action state till after we actually
2503 * time out. This allows us to take some action like notifying any
2504 * interested parties about no response to the request.
2506 * When the timer (below) goes off we check in IDLE, SEARCH, or
2507 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2508 * requests in, if this was still pending and then raise notification.
2512 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
2514 if (p2p
->state
!= P2P_IDLE
)
2515 p2p_continue_find(p2p
);
2516 else if (p2p
->user_initiated_pd
) {
2517 p2p
->pending_action_state
= P2P_PENDING_PD
;
2518 p2p_set_timeout(p2p
, 0, 300000);
2524 * This postponing, of resetting pending_action_state, needs to be
2525 * done only for user initiated PD requests and not internal ones.
2527 if (p2p
->user_initiated_pd
)
2528 p2p
->pending_action_state
= P2P_PENDING_PD
;
2530 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
2532 /* Wait for response from the peer */
2533 if (p2p
->state
== P2P_SEARCH
)
2534 p2p_set_state(p2p
, P2P_PD_DURING_FIND
);
2535 p2p_set_timeout(p2p
, 0, 200000);
2539 int p2p_scan_res_handler(struct p2p_data
*p2p
, const u8
*bssid
, int freq
,
2540 int level
, const u8
*ies
, size_t ies_len
)
2542 p2p_add_device(p2p
, bssid
, freq
, level
, ies
, ies_len
);
2544 if (p2p
->go_neg_peer
&& p2p
->state
== P2P_SEARCH
&&
2545 os_memcmp(p2p
->go_neg_peer
->info
.p2p_device_addr
, bssid
, ETH_ALEN
)
2547 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2548 "P2P: Found GO Negotiation peer - try to start GO "
2550 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
2558 void p2p_scan_res_handled(struct p2p_data
*p2p
)
2560 if (!p2p
->p2p_scan_running
) {
2561 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: p2p_scan was not "
2562 "running, but scan results received");
2564 p2p
->p2p_scan_running
= 0;
2565 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
2567 if (p2p_run_after_scan(p2p
))
2569 if (p2p
->state
== P2P_SEARCH
)
2570 p2p_continue_find(p2p
);
2574 void p2p_scan_ie(struct p2p_data
*p2p
, struct wpabuf
*ies
, const u8
*dev_id
)
2576 u8
*len
= p2p_buf_add_ie_hdr(ies
);
2577 p2p_buf_add_capability(ies
, p2p
->dev_capab
, 0);
2579 p2p_buf_add_device_id(ies
, dev_id
);
2580 if (p2p
->cfg
->reg_class
&& p2p
->cfg
->channel
)
2581 p2p_buf_add_listen_channel(ies
, p2p
->cfg
->country
,
2582 p2p
->cfg
->reg_class
,
2584 if (p2p
->ext_listen_interval
)
2585 p2p_buf_add_ext_listen_timing(ies
, p2p
->ext_listen_period
,
2586 p2p
->ext_listen_interval
);
2587 /* TODO: p2p_buf_add_operating_channel() if GO */
2588 p2p_buf_update_ie_hdr(ies
, len
);
2592 size_t p2p_scan_ie_buf_len(struct p2p_data
*p2p
)
2598 int p2p_ie_text(struct wpabuf
*p2p_ie
, char *buf
, char *end
)
2600 return p2p_attr_text(p2p_ie
, buf
, end
);
2604 static void p2p_go_neg_req_cb(struct p2p_data
*p2p
, int success
)
2606 struct p2p_device
*dev
= p2p
->go_neg_peer
;
2608 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2609 "P2P: GO Negotiation Request TX callback: success=%d",
2613 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2614 "P2P: No pending GO Negotiation");
2619 dev
->go_neg_req_sent
++;
2620 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
2621 p2p_set_state(p2p
, P2P_IDLE
);
2627 (dev
->info
.dev_capab
& P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
) &&
2628 !is_zero_ether_addr(dev
->member_in_go_dev
)) {
2629 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2630 "P2P: Peer " MACSTR
" did not acknowledge request - "
2631 "try to use device discoverability through its GO",
2632 MAC2STR(dev
->info
.p2p_device_addr
));
2633 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
2634 p2p_send_dev_disc_req(p2p
, dev
);
2639 * Use P2P find, if needed, to find the other device from its listen
2642 p2p_set_state(p2p
, P2P_CONNECT
);
2643 p2p_set_timeout(p2p
, 0, 100000);
2647 static void p2p_go_neg_resp_cb(struct p2p_data
*p2p
, int success
)
2649 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2650 "P2P: GO Negotiation Response TX callback: success=%d",
2652 if (!p2p
->go_neg_peer
&& p2p
->state
== P2P_PROVISIONING
) {
2653 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2654 "P2P: Ignore TX callback event - GO Negotiation is "
2655 "not running anymore");
2658 p2p_set_state(p2p
, P2P_CONNECT
);
2659 p2p_set_timeout(p2p
, 0, 100000);
2663 static void p2p_go_neg_resp_failure_cb(struct p2p_data
*p2p
, int success
)
2665 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2666 "P2P: GO Negotiation Response (failure) TX callback: "
2667 "success=%d", success
);
2668 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->status
!= P2P_SC_SUCCESS
) {
2669 p2p_go_neg_failed(p2p
, p2p
->go_neg_peer
,
2670 p2p
->go_neg_peer
->status
);
2675 static void p2p_go_neg_conf_cb(struct p2p_data
*p2p
,
2676 enum p2p_send_action_result result
)
2678 struct p2p_device
*dev
;
2680 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2681 "P2P: GO Negotiation Confirm TX callback: result=%d",
2683 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
2684 if (result
== P2P_SEND_ACTION_FAILED
) {
2685 p2p_go_neg_failed(p2p
, p2p
->go_neg_peer
, -1);
2688 if (result
== P2P_SEND_ACTION_NO_ACK
) {
2690 * It looks like the TX status for GO Negotiation Confirm is
2691 * often showing failure even when the peer has actually
2692 * received the frame. Since the peer may change channels
2693 * immediately after having received the frame, we may not see
2694 * an Ack for retries, so just dropping a single frame may
2695 * trigger this. To allow the group formation to succeed if the
2696 * peer did indeed receive the frame, continue regardless of
2699 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2700 "P2P: Assume GO Negotiation Confirm TX was actually "
2701 "received by the peer even though Ack was not "
2705 dev
= p2p
->go_neg_peer
;
2709 p2p_go_complete(p2p
, dev
);
2713 void p2p_send_action_cb(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
2714 const u8
*src
, const u8
*bssid
,
2715 enum p2p_send_action_result result
)
2717 enum p2p_pending_action_state state
;
2720 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2721 "P2P: Action frame TX callback (state=%d freq=%u dst=" MACSTR
2722 " src=" MACSTR
" bssid=" MACSTR
" result=%d",
2723 p2p
->pending_action_state
, freq
, MAC2STR(dst
), MAC2STR(src
),
2724 MAC2STR(bssid
), result
);
2725 success
= result
== P2P_SEND_ACTION_SUCCESS
;
2726 state
= p2p
->pending_action_state
;
2727 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
2729 case P2P_NO_PENDING_ACTION
:
2731 case P2P_PENDING_GO_NEG_REQUEST
:
2732 p2p_go_neg_req_cb(p2p
, success
);
2734 case P2P_PENDING_GO_NEG_RESPONSE
:
2735 p2p_go_neg_resp_cb(p2p
, success
);
2737 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE
:
2738 p2p_go_neg_resp_failure_cb(p2p
, success
);
2740 case P2P_PENDING_GO_NEG_CONFIRM
:
2741 p2p_go_neg_conf_cb(p2p
, result
);
2743 case P2P_PENDING_SD
:
2744 p2p_sd_cb(p2p
, success
);
2746 case P2P_PENDING_PD
:
2747 p2p_prov_disc_cb(p2p
, success
);
2749 case P2P_PENDING_INVITATION_REQUEST
:
2750 p2p_invitation_req_cb(p2p
, success
);
2752 case P2P_PENDING_INVITATION_RESPONSE
:
2753 p2p_invitation_resp_cb(p2p
, success
);
2755 case P2P_PENDING_DEV_DISC_REQUEST
:
2756 p2p_dev_disc_req_cb(p2p
, success
);
2758 case P2P_PENDING_DEV_DISC_RESPONSE
:
2759 p2p_dev_disc_resp_cb(p2p
, success
);
2761 case P2P_PENDING_GO_DISC_REQ
:
2762 p2p_go_disc_req_cb(p2p
, success
);
2768 void p2p_listen_cb(struct p2p_data
*p2p
, unsigned int freq
,
2769 unsigned int duration
)
2771 if (freq
== p2p
->pending_client_disc_freq
) {
2772 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2773 "P2P: Client discoverability remain-awake completed");
2774 p2p
->pending_client_disc_freq
= 0;
2778 if (freq
!= p2p
->pending_listen_freq
) {
2779 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2780 "P2P: Unexpected listen callback for freq=%u "
2781 "duration=%u (pending_listen_freq=%u)",
2782 freq
, duration
, p2p
->pending_listen_freq
);
2786 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2787 "P2P: Starting Listen timeout(%u,%u) on freq=%u based on "
2789 p2p
->pending_listen_sec
, p2p
->pending_listen_usec
,
2790 p2p
->pending_listen_freq
);
2792 p2p
->drv_in_listen
= freq
;
2793 if (p2p
->pending_listen_sec
|| p2p
->pending_listen_usec
) {
2795 * Add 20 msec extra wait to avoid race condition with driver
2796 * remain-on-channel end event, i.e., give driver more time to
2797 * complete the operation before our timeout expires.
2799 p2p_set_timeout(p2p
, p2p
->pending_listen_sec
,
2800 p2p
->pending_listen_usec
+ 20000);
2803 p2p
->pending_listen_freq
= 0;
2807 int p2p_listen_end(struct p2p_data
*p2p
, unsigned int freq
)
2809 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Driver ended Listen "
2810 "state (freq=%u)", freq
);
2811 p2p
->drv_in_listen
= 0;
2813 return 0; /* Internal timeout will trigger the next step */
2815 if (p2p
->state
== P2P_CONNECT_LISTEN
&& p2p
->go_neg_peer
) {
2816 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
2817 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2818 "P2P: Timeout on sending GO Negotiation "
2819 "Request without getting response");
2820 p2p_go_neg_failed(p2p
, p2p
->go_neg_peer
, -1);
2824 p2p_set_state(p2p
, P2P_CONNECT
);
2825 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
2827 } else if (p2p
->state
== P2P_SEARCH
) {
2836 static void p2p_timeout_connect(struct p2p_data
*p2p
)
2838 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
2839 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
2840 p2p_listen_in_find(p2p
);
2844 static void p2p_timeout_connect_listen(struct p2p_data
*p2p
)
2846 if (p2p
->go_neg_peer
) {
2847 if (p2p
->drv_in_listen
) {
2848 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Driver is "
2849 "still in Listen state; wait for it to "
2854 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
2855 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2856 "P2P: Timeout on sending GO Negotiation "
2857 "Request without getting response");
2858 p2p_go_neg_failed(p2p
, p2p
->go_neg_peer
, -1);
2862 p2p_set_state(p2p
, P2P_CONNECT
);
2863 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
2865 p2p_set_state(p2p
, P2P_IDLE
);
2869 static void p2p_timeout_wait_peer_connect(struct p2p_data
*p2p
)
2872 * TODO: could remain constantly in Listen state for some time if there
2873 * are no other concurrent uses for the radio. For now, go to listen
2874 * state once per second to give other uses a chance to use the radio.
2876 p2p_set_state(p2p
, P2P_WAIT_PEER_IDLE
);
2877 p2p_set_timeout(p2p
, 0, 500000);
2881 static void p2p_timeout_wait_peer_idle(struct p2p_data
*p2p
)
2883 struct p2p_device
*dev
= p2p
->go_neg_peer
;
2886 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2887 "P2P: Unknown GO Neg peer - stop GO Neg wait");
2892 if (dev
->wait_count
>= 120) {
2893 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2894 "P2P: Timeout on waiting peer to become ready for GO "
2896 p2p_go_neg_failed(p2p
, dev
, -1);
2900 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2901 "P2P: Go to Listen state while waiting for the peer to become "
2902 "ready for GO Negotiation");
2903 p2p_set_state(p2p
, P2P_WAIT_PEER_CONNECT
);
2904 p2p_listen_in_find(p2p
);
2908 static void p2p_timeout_sd_during_find(struct p2p_data
*p2p
)
2910 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2911 "P2P: Service Discovery Query timeout");
2913 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
2914 p2p
->sd_peer
->flags
&= ~P2P_DEV_SD_SCHEDULE
;
2915 p2p
->sd_peer
= NULL
;
2917 p2p_continue_find(p2p
);
2921 static void p2p_timeout_prov_disc_during_find(struct p2p_data
*p2p
)
2923 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2924 "P2P: Provision Discovery Request timeout");
2925 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
2926 p2p_continue_find(p2p
);
2930 static void p2p_timeout_prov_disc_req(struct p2p_data
*p2p
)
2932 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
2935 * For user initiated PD requests that we have not gotten any responses
2936 * for while in IDLE state, we retry them a couple of times before
2939 if (!p2p
->user_initiated_pd
)
2942 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2943 "P2P: User initiated Provision Discovery Request timeout");
2945 if (p2p
->pd_retries
) {
2949 if (p2p
->cfg
->prov_disc_fail
)
2950 p2p
->cfg
->prov_disc_fail(p2p
->cfg
->cb_ctx
,
2951 p2p
->pending_pd_devaddr
,
2952 P2P_PROV_DISC_TIMEOUT
);
2953 p2p_reset_pending_pd(p2p
);
2958 static void p2p_timeout_invite(struct p2p_data
*p2p
)
2960 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
2961 p2p_set_state(p2p
, P2P_INVITE_LISTEN
);
2962 if (p2p
->inv_role
== P2P_INVITE_ROLE_ACTIVE_GO
) {
2964 * Better remain on operating channel instead of listen channel
2965 * when running a group.
2967 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Inviting in "
2968 "active GO role - wait on operating channel");
2969 p2p_set_timeout(p2p
, 0, 100000);
2972 p2p_listen_in_find(p2p
);
2976 static void p2p_timeout_invite_listen(struct p2p_data
*p2p
)
2978 if (p2p
->invite_peer
&& p2p
->invite_peer
->invitation_reqs
< 100) {
2979 p2p_set_state(p2p
, P2P_INVITE
);
2980 p2p_invite_send(p2p
, p2p
->invite_peer
,
2981 p2p
->invite_go_dev_addr
);
2983 if (p2p
->invite_peer
) {
2984 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
2985 "P2P: Invitation Request retry limit reached");
2986 if (p2p
->cfg
->invitation_result
)
2987 p2p
->cfg
->invitation_result(
2988 p2p
->cfg
->cb_ctx
, -1, NULL
);
2990 p2p_set_state(p2p
, P2P_IDLE
);
2995 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
)
2997 struct p2p_data
*p2p
= eloop_ctx
;
2999 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Timeout (state=%s)",
3000 p2p_state_txt(p2p
->state
));
3004 switch (p2p
->state
) {
3006 /* Check if we timed out waiting for PD req */
3007 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
3008 p2p_timeout_prov_disc_req(p2p
);
3011 /* Check if we timed out waiting for PD req */
3012 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
3013 p2p_timeout_prov_disc_req(p2p
);
3017 p2p_timeout_connect(p2p
);
3019 case P2P_CONNECT_LISTEN
:
3020 p2p_timeout_connect_listen(p2p
);
3024 case P2P_LISTEN_ONLY
:
3025 /* Check if we timed out waiting for PD req */
3026 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
3027 p2p_timeout_prov_disc_req(p2p
);
3029 if (p2p
->ext_listen_only
) {
3030 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3031 "P2P: Extended Listen Timing - Listen State "
3033 p2p
->ext_listen_only
= 0;
3034 p2p_set_state(p2p
, P2P_IDLE
);
3037 case P2P_WAIT_PEER_CONNECT
:
3038 p2p_timeout_wait_peer_connect(p2p
);
3040 case P2P_WAIT_PEER_IDLE
:
3041 p2p_timeout_wait_peer_idle(p2p
);
3043 case P2P_SD_DURING_FIND
:
3044 p2p_timeout_sd_during_find(p2p
);
3046 case P2P_PROVISIONING
:
3048 case P2P_PD_DURING_FIND
:
3049 p2p_timeout_prov_disc_during_find(p2p
);
3052 p2p_timeout_invite(p2p
);
3054 case P2P_INVITE_LISTEN
:
3055 p2p_timeout_invite_listen(p2p
);
3057 case P2P_SEARCH_WHEN_READY
:
3063 int p2p_reject(struct p2p_data
*p2p
, const u8
*peer_addr
)
3065 struct p2p_device
*dev
;
3067 dev
= p2p_get_device(p2p
, peer_addr
);
3068 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Local request to reject "
3069 "connection attempts by peer " MACSTR
, MAC2STR(peer_addr
));
3071 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Peer " MACSTR
3072 " unknown", MAC2STR(peer_addr
));
3075 dev
->status
= P2P_SC_FAIL_REJECTED_BY_USER
;
3076 dev
->flags
|= P2P_DEV_USER_REJECTED
;
3081 const char * p2p_wps_method_text(enum p2p_wps_method method
)
3086 case WPS_PIN_DISPLAY
:
3088 case WPS_PIN_KEYPAD
:
3098 static const char * p2p_go_state_text(enum p2p_go_state go_state
)
3113 const struct p2p_peer_info
* p2p_get_peer_info(struct p2p_data
*p2p
,
3114 const u8
*addr
, int next
)
3116 struct p2p_device
*dev
;
3119 dev
= p2p_get_device(p2p
, addr
);
3121 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
3124 dev
= dl_list_first(&dev
->list
, struct p2p_device
, list
);
3125 if (&dev
->list
== &p2p
->devices
)
3136 int p2p_get_peer_info_txt(const struct p2p_peer_info
*info
,
3137 char *buf
, size_t buflen
)
3139 struct p2p_device
*dev
;
3147 dev
= (struct p2p_device
*) (((u8
*) info
) -
3148 offsetof(struct p2p_device
, info
));
3154 res
= os_snprintf(pos
, end
- pos
,
3158 "interface_addr=" MACSTR
"\n"
3159 "member_in_go_dev=" MACSTR
"\n"
3160 "member_in_go_iface=" MACSTR
"\n"
3161 "go_neg_req_sent=%d\n"
3164 "intended_addr=" MACSTR
"\n"
3167 "req_config_methods=0x%x\n"
3168 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
3171 "invitation_reqs=%u\n",
3172 (int) (now
.sec
- dev
->last_seen
.sec
),
3174 p2p_wps_method_text(dev
->wps_method
),
3175 MAC2STR(dev
->interface_addr
),
3176 MAC2STR(dev
->member_in_go_dev
),
3177 MAC2STR(dev
->member_in_go_iface
),
3178 dev
->go_neg_req_sent
,
3179 p2p_go_state_text(dev
->go_state
),
3181 MAC2STR(dev
->intended_addr
),
3182 dev
->country
[0] ? dev
->country
[0] : '_',
3183 dev
->country
[1] ? dev
->country
[1] : '_',
3185 dev
->req_config_methods
,
3186 dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
?
3187 "[PROBE_REQ_ONLY]" : "",
3188 dev
->flags
& P2P_DEV_REPORTED
? "[REPORTED]" : "",
3189 dev
->flags
& P2P_DEV_NOT_YET_READY
?
3190 "[NOT_YET_READY]" : "",
3191 dev
->flags
& P2P_DEV_SD_INFO
? "[SD_INFO]" : "",
3192 dev
->flags
& P2P_DEV_SD_SCHEDULE
? "[SD_SCHEDULE]" :
3194 dev
->flags
& P2P_DEV_PD_PEER_DISPLAY
?
3195 "[PD_PEER_DISPLAY]" : "",
3196 dev
->flags
& P2P_DEV_PD_PEER_KEYPAD
?
3197 "[PD_PEER_KEYPAD]" : "",
3198 dev
->flags
& P2P_DEV_USER_REJECTED
?
3199 "[USER_REJECTED]" : "",
3200 dev
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
?
3201 "[PEER_WAITING_RESPONSE]" : "",
3202 dev
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
?
3203 "[PREFER_PERSISTENT_GROUP]" : "",
3204 dev
->flags
& P2P_DEV_WAIT_GO_NEG_RESPONSE
?
3205 "[WAIT_GO_NEG_RESPONSE]" : "",
3206 dev
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
?
3207 "[WAIT_GO_NEG_CONFIRM]" : "",
3208 dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
?
3209 "[GROUP_CLIENT_ONLY]" : "",
3210 dev
->flags
& P2P_DEV_FORCE_FREQ
?
3211 "[FORCE_FREQ]" : "",
3212 dev
->flags
& P2P_DEV_PD_FOR_JOIN
?
3213 "[PD_FOR_JOIN]" : "",
3216 dev
->invitation_reqs
);
3217 if (res
< 0 || res
>= end
- pos
)
3221 if (dev
->ext_listen_period
) {
3222 res
= os_snprintf(pos
, end
- pos
,
3223 "ext_listen_period=%u\n"
3224 "ext_listen_interval=%u\n",
3225 dev
->ext_listen_period
,
3226 dev
->ext_listen_interval
);
3227 if (res
< 0 || res
>= end
- pos
)
3232 if (dev
->oper_ssid_len
) {
3233 res
= os_snprintf(pos
, end
- pos
,
3235 wpa_ssid_txt(dev
->oper_ssid
,
3236 dev
->oper_ssid_len
));
3237 if (res
< 0 || res
>= end
- pos
)
3246 int p2p_peer_known(struct p2p_data
*p2p
, const u8
*addr
)
3248 return p2p_get_device(p2p
, addr
) != NULL
;
3252 void p2p_set_client_discoverability(struct p2p_data
*p2p
, int enabled
)
3255 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Client "
3256 "discoverability enabled");
3257 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
3259 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Client "
3260 "discoverability disabled");
3261 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
3266 static struct wpabuf
* p2p_build_presence_req(u32 duration1
, u32 interval1
,
3267 u32 duration2
, u32 interval2
)
3270 struct p2p_noa_desc desc1
, desc2
, *ptr1
= NULL
, *ptr2
= NULL
;
3273 req
= wpabuf_alloc(100);
3277 if (duration1
|| interval1
) {
3278 os_memset(&desc1
, 0, sizeof(desc1
));
3279 desc1
.count_type
= 1;
3280 desc1
.duration
= duration1
;
3281 desc1
.interval
= interval1
;
3284 if (duration2
|| interval2
) {
3285 os_memset(&desc2
, 0, sizeof(desc2
));
3286 desc2
.count_type
= 2;
3287 desc2
.duration
= duration2
;
3288 desc2
.interval
= interval2
;
3293 p2p_buf_add_action_hdr(req
, P2P_PRESENCE_REQ
, 1);
3294 len
= p2p_buf_add_ie_hdr(req
);
3295 p2p_buf_add_noa(req
, 0, 0, 0, ptr1
, ptr2
);
3296 p2p_buf_update_ie_hdr(req
, len
);
3302 int p2p_presence_req(struct p2p_data
*p2p
, const u8
*go_interface_addr
,
3303 const u8
*own_interface_addr
, unsigned int freq
,
3304 u32 duration1
, u32 interval1
, u32 duration2
,
3309 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Send Presence Request to "
3310 "GO " MACSTR
" (own interface " MACSTR
") freq=%u dur1=%u "
3311 "int1=%u dur2=%u int2=%u",
3312 MAC2STR(go_interface_addr
), MAC2STR(own_interface_addr
),
3313 freq
, duration1
, interval1
, duration2
, interval2
);
3315 req
= p2p_build_presence_req(duration1
, interval1
, duration2
,
3320 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3321 if (p2p_send_action(p2p
, freq
, go_interface_addr
, own_interface_addr
,
3323 wpabuf_head(req
), wpabuf_len(req
), 200) < 0) {
3324 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3325 "P2P: Failed to send Action frame");
3333 static struct wpabuf
* p2p_build_presence_resp(u8 status
, const u8
*noa
,
3334 size_t noa_len
, u8 dialog_token
)
3336 struct wpabuf
*resp
;
3339 resp
= wpabuf_alloc(100 + noa_len
);
3343 p2p_buf_add_action_hdr(resp
, P2P_PRESENCE_RESP
, dialog_token
);
3344 len
= p2p_buf_add_ie_hdr(resp
);
3345 p2p_buf_add_status(resp
, status
);
3347 wpabuf_put_u8(resp
, P2P_ATTR_NOTICE_OF_ABSENCE
);
3348 wpabuf_put_le16(resp
, noa_len
);
3349 wpabuf_put_data(resp
, noa
, noa_len
);
3351 p2p_buf_add_noa(resp
, 0, 0, 0, NULL
, NULL
);
3352 p2p_buf_update_ie_hdr(resp
, len
);
3358 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
3359 const u8
*sa
, const u8
*data
, size_t len
,
3362 struct p2p_message msg
;
3364 struct wpabuf
*resp
;
3366 struct p2p_group
*group
= NULL
;
3371 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3372 "P2P: Received P2P Action - P2P Presence Request");
3374 for (g
= 0; g
< p2p
->num_groups
; g
++) {
3375 if (os_memcmp(da
, p2p_group_get_interface_addr(p2p
->groups
[g
]),
3377 group
= p2p
->groups
[g
];
3381 if (group
== NULL
) {
3382 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3383 "P2P: Ignore P2P Presence Request for unknown group "
3384 MACSTR
, MAC2STR(da
));
3388 if (p2p_parse(data
, len
, &msg
) < 0) {
3389 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3390 "P2P: Failed to parse P2P Presence Request");
3391 status
= P2P_SC_FAIL_INVALID_PARAMS
;
3396 if (msg
.noa
== NULL
) {
3397 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3398 "P2P: No NoA attribute in P2P Presence Request");
3399 status
= P2P_SC_FAIL_INVALID_PARAMS
;
3403 status
= p2p_group_presence_req(group
, sa
, msg
.noa
, msg
.noa_len
);
3406 if (p2p
->cfg
->get_noa
)
3407 noa_len
= p2p
->cfg
->get_noa(p2p
->cfg
->cb_ctx
, da
, noa
,
3411 resp
= p2p_build_presence_resp(status
, noa_len
> 0 ? noa
: NULL
,
3412 noa_len
> 0 ? noa_len
: 0,
3415 p2p_parse_free(&msg
);
3419 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3420 if (p2p_send_action(p2p
, rx_freq
, sa
, da
, da
,
3421 wpabuf_head(resp
), wpabuf_len(resp
), 200) < 0) {
3422 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3423 "P2P: Failed to send Action frame");
3429 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
3430 const u8
*sa
, const u8
*data
, size_t len
)
3432 struct p2p_message msg
;
3434 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3435 "P2P: Received P2P Action - P2P Presence Response");
3437 if (p2p_parse(data
, len
, &msg
) < 0) {
3438 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3439 "P2P: Failed to parse P2P Presence Response");
3443 if (msg
.status
== NULL
|| msg
.noa
== NULL
) {
3444 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3445 "P2P: No Status or NoA attribute in P2P Presence "
3447 p2p_parse_free(&msg
);
3452 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3453 "P2P: P2P Presence Request was rejected: status %u",
3455 p2p_parse_free(&msg
);
3459 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3460 "P2P: P2P Presence Request was accepted");
3461 wpa_hexdump(MSG_DEBUG
, "P2P: P2P Presence Response - NoA",
3462 msg
.noa
, msg
.noa_len
);
3463 /* TODO: process NoA */
3464 p2p_parse_free(&msg
);
3468 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
3470 struct p2p_data
*p2p
= eloop_ctx
;
3472 if (p2p
->ext_listen_interval
) {
3473 /* Schedule next extended listen timeout */
3474 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
3475 p2p
->ext_listen_interval_usec
,
3476 p2p_ext_listen_timeout
, p2p
, NULL
);
3479 if (p2p
->state
== P2P_LISTEN_ONLY
&& p2p
->ext_listen_only
) {
3481 * This should not really happen, but it looks like the Listen
3482 * command may fail is something else (e.g., a scan) was
3483 * running at an inconvenient time. As a workaround, allow new
3484 * Extended Listen operation to be started.
3486 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Previous "
3487 "Extended Listen operation had not been completed - "
3489 p2p
->ext_listen_only
= 0;
3490 p2p_set_state(p2p
, P2P_IDLE
);
3493 if (p2p
->state
!= P2P_IDLE
) {
3494 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Skip Extended "
3495 "Listen timeout in active state (%s)",
3496 p2p_state_txt(p2p
->state
));
3500 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Extended Listen timeout");
3501 p2p
->ext_listen_only
= 1;
3502 if (p2p_listen(p2p
, p2p
->ext_listen_period
) < 0) {
3503 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Failed to start "
3504 "Listen state for Extended Listen Timing");
3505 p2p
->ext_listen_only
= 0;
3510 int p2p_ext_listen(struct p2p_data
*p2p
, unsigned int period
,
3511 unsigned int interval
)
3513 if (period
> 65535 || interval
> 65535 || period
> interval
||
3514 (period
== 0 && interval
> 0) || (period
> 0 && interval
== 0)) {
3515 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3516 "P2P: Invalid Extended Listen Timing request: "
3517 "period=%u interval=%u", period
, interval
);
3521 eloop_cancel_timeout(p2p_ext_listen_timeout
, p2p
, NULL
);
3523 if (interval
== 0) {
3524 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3525 "P2P: Disabling Extended Listen Timing");
3526 p2p
->ext_listen_period
= 0;
3527 p2p
->ext_listen_interval
= 0;
3531 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
,
3532 "P2P: Enabling Extended Listen Timing: period %u msec, "
3533 "interval %u msec", period
, interval
);
3534 p2p
->ext_listen_period
= period
;
3535 p2p
->ext_listen_interval
= interval
;
3536 p2p
->ext_listen_interval_sec
= interval
/ 1000;
3537 p2p
->ext_listen_interval_usec
= (interval
% 1000) * 1000;
3539 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
3540 p2p
->ext_listen_interval_usec
,
3541 p2p_ext_listen_timeout
, p2p
, NULL
);
3547 void p2p_deauth_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
3548 const u8
*ie
, size_t ie_len
)
3550 struct p2p_message msg
;
3552 if (bssid
== NULL
|| ie
== NULL
)
3555 os_memset(&msg
, 0, sizeof(msg
));
3556 if (p2p_parse_ies(ie
, ie_len
, &msg
))
3558 if (msg
.minor_reason_code
== NULL
)
3561 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_INFO
,
3562 "P2P: Deauthentication notification BSSID " MACSTR
3563 " reason_code=%u minor_reason_code=%u",
3564 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
3566 p2p_parse_free(&msg
);
3570 void p2p_disassoc_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
3571 const u8
*ie
, size_t ie_len
)
3573 struct p2p_message msg
;
3575 if (bssid
== NULL
|| ie
== NULL
)
3578 os_memset(&msg
, 0, sizeof(msg
));
3579 if (p2p_parse_ies(ie
, ie_len
, &msg
))
3581 if (msg
.minor_reason_code
== NULL
)
3584 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_INFO
,
3585 "P2P: Disassociation notification BSSID " MACSTR
3586 " reason_code=%u minor_reason_code=%u",
3587 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
3589 p2p_parse_free(&msg
);
3593 void p2p_set_managed_oper(struct p2p_data
*p2p
, int enabled
)
3596 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Managed P2P "
3597 "Device operations enabled");
3598 p2p
->dev_capab
|= P2P_DEV_CAPAB_INFRA_MANAGED
;
3600 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Managed P2P "
3601 "Device operations disabled");
3602 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_INFRA_MANAGED
;
3607 int p2p_set_listen_channel(struct p2p_data
*p2p
, u8 reg_class
, u8 channel
)
3609 if (p2p_channel_to_freq(p2p
->cfg
->country
, reg_class
, channel
) < 0)
3612 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Set Listen channel: "
3613 "reg_class %u channel %u", reg_class
, channel
);
3614 p2p
->cfg
->reg_class
= reg_class
;
3615 p2p
->cfg
->channel
= channel
;
3621 int p2p_set_ssid_postfix(struct p2p_data
*p2p
, const u8
*postfix
, size_t len
)
3623 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: New SSID postfix", postfix
, len
);
3624 if (postfix
== NULL
) {
3625 p2p
->cfg
->ssid_postfix_len
= 0;
3628 if (len
> sizeof(p2p
->cfg
->ssid_postfix
))
3630 os_memcpy(p2p
->cfg
->ssid_postfix
, postfix
, len
);
3631 p2p
->cfg
->ssid_postfix_len
= len
;
3636 int p2p_set_oper_channel(struct p2p_data
*p2p
, u8 op_reg_class
, u8 op_channel
,
3639 if (p2p_channel_to_freq(p2p
->cfg
->country
, op_reg_class
, op_channel
)
3643 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_INFO
, "P2P: Set Operating channel: "
3644 "reg_class %u channel %u", op_reg_class
, op_channel
);
3645 p2p
->cfg
->op_reg_class
= op_reg_class
;
3646 p2p
->cfg
->op_channel
= op_channel
;
3647 p2p
->cfg
->cfg_op_channel
= cfg_op_channel
;
3652 int p2p_get_interface_addr(struct p2p_data
*p2p
, const u8
*dev_addr
,
3655 struct p2p_device
*dev
= p2p_get_device(p2p
, dev_addr
);
3656 if (dev
== NULL
|| is_zero_ether_addr(dev
->interface_addr
))
3658 os_memcpy(iface_addr
, dev
->interface_addr
, ETH_ALEN
);
3663 int p2p_get_dev_addr(struct p2p_data
*p2p
, const u8
*iface_addr
,
3666 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
3669 os_memcpy(dev_addr
, dev
->info
.p2p_device_addr
, ETH_ALEN
);
3674 void p2p_set_peer_filter(struct p2p_data
*p2p
, const u8
*addr
)
3676 os_memcpy(p2p
->peer_filter
, addr
, ETH_ALEN
);
3677 if (is_zero_ether_addr(p2p
->peer_filter
))
3678 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Disable peer "
3681 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Enable peer "
3682 "filter for " MACSTR
, MAC2STR(p2p
->peer_filter
));
3686 void p2p_set_cross_connect(struct p2p_data
*p2p
, int enabled
)
3688 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Cross connection %s",
3689 enabled
? "enabled" : "disabled");
3690 if (p2p
->cross_connect
== enabled
)
3692 p2p
->cross_connect
= enabled
;
3693 /* TODO: may need to tear down any action group where we are GO(?) */
3697 int p2p_get_oper_freq(struct p2p_data
*p2p
, const u8
*iface_addr
)
3699 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
3702 if (dev
->oper_freq
<= 0)
3704 return dev
->oper_freq
;
3708 void p2p_set_intra_bss_dist(struct p2p_data
*p2p
, int enabled
)
3710 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Intra BSS distribution %s",
3711 enabled
? "enabled" : "disabled");
3712 p2p
->cfg
->p2p_intra_bss
= enabled
;
3716 void p2p_update_channel_list(struct p2p_data
*p2p
, struct p2p_channels
*chan
)
3718 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Update channel list");
3719 os_memcpy(&p2p
->cfg
->channels
, chan
, sizeof(struct p2p_channels
));
3723 int p2p_send_action(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
3724 const u8
*src
, const u8
*bssid
, const u8
*buf
,
3725 size_t len
, unsigned int wait_time
)
3727 if (p2p
->p2p_scan_running
) {
3728 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Delay Action "
3729 "frame TX until p2p_scan completes");
3730 if (p2p
->after_scan_tx
) {
3731 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Dropped "
3732 "previous pending Action frame TX");
3733 os_free(p2p
->after_scan_tx
);
3735 p2p
->after_scan_tx
= os_malloc(sizeof(*p2p
->after_scan_tx
) +
3737 if (p2p
->after_scan_tx
== NULL
)
3739 p2p
->after_scan_tx
->freq
= freq
;
3740 os_memcpy(p2p
->after_scan_tx
->dst
, dst
, ETH_ALEN
);
3741 os_memcpy(p2p
->after_scan_tx
->src
, src
, ETH_ALEN
);
3742 os_memcpy(p2p
->after_scan_tx
->bssid
, bssid
, ETH_ALEN
);
3743 p2p
->after_scan_tx
->len
= len
;
3744 p2p
->after_scan_tx
->wait_time
= wait_time
;
3745 os_memcpy(p2p
->after_scan_tx
+ 1, buf
, len
);
3749 return p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
, freq
, dst
, src
, bssid
,
3750 buf
, len
, wait_time
);
3754 void p2p_set_best_channels(struct p2p_data
*p2p
, int freq_24
, int freq_5
,
3757 wpa_msg(p2p
->cfg
->msg_ctx
, MSG_DEBUG
, "P2P: Best channel: 2.4 GHz: %d,"
3758 " 5 GHz: %d, overall: %d", freq_24
, freq_5
, freq_overall
);
3759 p2p
->best_freq_24
= freq_24
;
3760 p2p
->best_freq_5
= freq_5
;
3761 p2p
->best_freq_overall
= freq_overall
;
3765 const u8
* p2p_get_go_neg_peer(struct p2p_data
*p2p
)
3767 if (p2p
== NULL
|| p2p
->go_neg_peer
== NULL
)
3769 return p2p
->go_neg_peer
->info
.p2p_device_addr
;
3773 const struct p2p_peer_info
*
3774 p2p_get_peer_found(struct p2p_data
*p2p
, const u8
*addr
, int next
)
3776 struct p2p_device
*dev
;
3779 dev
= p2p_get_device(p2p
, addr
);
3784 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)
3790 dev
= dl_list_first(&dev
->list
,
3793 if (&dev
->list
== &p2p
->devices
)
3795 } while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
);
3798 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
3801 while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
3802 dev
= dl_list_first(&dev
->list
,
3805 if (&dev
->list
== &p2p
->devices
)
3814 int p2p_in_progress(struct p2p_data
*p2p
)
3818 return p2p
->state
!= P2P_IDLE
&& p2p
->state
!= P2P_PROVISIONING
;