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      1 /*
      2  * Wi-Fi Protected Setup - UPnP AP functionality
      3  * Copyright (c) 2009, Jouni Malinen <j (at) 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