xref: /netbsd-src/external/bsd/wpa/dist/src/wps/wps_upnp_ap.c (revision 62f324d0121177eaf2e0384f92fd9ca2a751c795)
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 	if (wps_validate_upnp_set_selected_registrar(msg) < 0)
43 		return -1;
44 
45 	if (wps_parse_msg(msg, &attr) < 0)
46 		return -1;
47 
48 	s->reg = reg;
49 	eloop_cancel_timeout(upnp_er_set_selected_timeout, s, NULL);
50 
51 	os_memset(s->authorized_macs, 0, sizeof(s->authorized_macs));
52 	if (attr.selected_registrar == NULL || *attr.selected_registrar == 0) {
53 		wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar: Disable "
54 			   "Selected Registrar");
55 		s->selected_registrar = 0;
56 	} else {
57 		s->selected_registrar = 1;
58 		s->dev_password_id = attr.dev_password_id ?
59 			WPA_GET_BE16(attr.dev_password_id) : DEV_PW_DEFAULT;
60 		s->config_methods = attr.sel_reg_config_methods ?
61 			WPA_GET_BE16(attr.sel_reg_config_methods) : -1;
62 		if (attr.authorized_macs) {
63 			int count = attr.authorized_macs_len / ETH_ALEN;
64 			if (count > WPS_MAX_AUTHORIZED_MACS)
65 				count = WPS_MAX_AUTHORIZED_MACS;
66 			os_memcpy(s->authorized_macs, attr.authorized_macs,
67 				  count * ETH_ALEN);
68 		} else if (!attr.version2) {
69 #ifdef CONFIG_WPS2
70 			wpa_printf(MSG_DEBUG, "WPS: Add broadcast "
71 				   "AuthorizedMACs for WPS 1.0 ER");
72 			os_memset(s->authorized_macs, 0xff, ETH_ALEN);
73 #endif /* CONFIG_WPS2 */
74 		}
75 		eloop_register_timeout(WPS_PBC_WALK_TIME, 0,
76 				       upnp_er_set_selected_timeout, s, NULL);
77 	}
78 
79 	wps_registrar_selected_registrar_changed(reg);
80 
81 	return 0;
82 }
83 
84 
85 void upnp_er_remove_notification(struct subscription *s)
86 {
87 	s->selected_registrar = 0;
88 	eloop_cancel_timeout(upnp_er_set_selected_timeout, s, NULL);
89 	if (s->reg)
90 		wps_registrar_selected_registrar_changed(s->reg);
91 }
92