xref: /freebsd/contrib/wpa/src/wps/wps_upnp_ap.c (revision d2ce15bd43b3a1dcce08eecbff8d5d359946d972)
1 /*
2  * Wi-Fi Protected Setup - UPnP AP functionality
3  * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
4  *
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.
8  *
9  * Alternatively, this software may be distributed under the terms of BSD
10  * license.
11  *
12  * See README and COPYING for more details.
13  */
14 
15 #include "includes.h"
16 
17 #include "common.h"
18 #include "eloop.h"
19 #include "uuid.h"
20 #include "wps_i.h"
21 #include "wps_upnp.h"
22 #include "wps_upnp_i.h"
23 
24 
25 static void upnp_er_set_selected_timeout(void *eloop_ctx, void *timeout_ctx)
26 {
27 	struct subscription *s = eloop_ctx;
28 	wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar from ER timed out");
29 	s->selected_registrar = 0;
30 	wps_registrar_selected_registrar_changed(s->reg);
31 }
32 
33 
34 int upnp_er_set_selected_registrar(struct wps_registrar *reg,
35 				   struct subscription *s,
36 				   const struct wpabuf *msg)
37 {
38 	struct wps_parse_attr attr;
39 
40 	wpa_hexdump_buf(MSG_MSGDUMP, "WPS: SetSelectedRegistrar attributes",
41 			msg);
42 
43 	if (wps_parse_msg(msg, &attr) < 0)
44 		return -1;
45 	if (!wps_version_supported(attr.version)) {
46 		wpa_printf(MSG_DEBUG, "WPS: Unsupported SetSelectedRegistrar "
47 			   "version 0x%x", attr.version ? *attr.version : 0);
48 		return -1;
49 	}
50 
51 	s->reg = reg;
52 	eloop_cancel_timeout(upnp_er_set_selected_timeout, s, NULL);
53 
54 	if (attr.selected_registrar == NULL || *attr.selected_registrar == 0) {
55 		wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar: Disable "
56 			   "Selected Registrar");
57 		s->selected_registrar = 0;
58 	} else {
59 		s->selected_registrar = 1;
60 		s->dev_password_id = attr.dev_password_id ?
61 			WPA_GET_BE16(attr.dev_password_id) : DEV_PW_DEFAULT;
62 		s->config_methods = attr.sel_reg_config_methods ?
63 			WPA_GET_BE16(attr.sel_reg_config_methods) : -1;
64 		eloop_register_timeout(WPS_PBC_WALK_TIME, 0,
65 				       upnp_er_set_selected_timeout, s, NULL);
66 	}
67 
68 	wps_registrar_selected_registrar_changed(reg);
69 
70 	return 0;
71 }
72 
73 
74 void upnp_er_remove_notification(struct subscription *s)
75 {
76 	s->selected_registrar = 0;
77 	eloop_cancel_timeout(upnp_er_set_selected_timeout, s, NULL);
78 	if (s->reg)
79 		wps_registrar_selected_registrar_changed(s->reg);
80 }
81