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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 software may be distributed under the terms of the BSD license.
      6  * See README for more details.
      7  */
      8 
      9 #include "includes.h"
     10 
     11 #include "common.h"
     12 #include "eloop.h"
     13 #include "uuid.h"
     14 #include "wps_i.h"
     15 #include "wps_upnp.h"
     16 #include "wps_upnp_i.h"
     17 
     18 
     19 static void upnp_er_set_selected_timeout(void *eloop_ctx, void *timeout_ctx)
     20 {
     21 	struct subscription *s = eloop_ctx;
     22 	struct wps_registrar *reg = timeout_ctx;
     23 	wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar from ER timed out");
     24 	s->selected_registrar = 0;
     25 	wps_registrar_selected_registrar_changed(reg, 0);
     26 }
     27 
     28 
     29 int upnp_er_set_selected_registrar(struct wps_registrar *reg,
     30 				   struct subscription *s,
     31 				   const struct wpabuf *msg)
     32 {
     33 	struct wps_parse_attr attr;
     34 
     35 	wpa_hexdump_buf(MSG_MSGDUMP, "WPS: SetSelectedRegistrar attributes",
     36 			msg);
     37 	if (wps_validate_upnp_set_selected_registrar(msg) < 0 ||
     38 	    wps_parse_msg(msg, &attr) < 0)
     39 		return -1;
     40 
     41 	s->reg = reg;
     42 	eloop_cancel_timeout(upnp_er_set_selected_timeout, s, reg);
     43 
     44 	os_memset(s->authorized_macs, 0, sizeof(s->authorized_macs));
     45 	if (attr.selected_registrar == NULL || *attr.selected_registrar == 0) {
     46 		wpa_printf(MSG_DEBUG, "WPS: SetSelectedRegistrar: Disable "
     47 			   "Selected Registrar");
     48 		s->selected_registrar = 0;
     49 	} else {
     50 		s->selected_registrar = 1;
     51 		s->dev_password_id = attr.dev_password_id ?
     52 			WPA_GET_BE16(attr.dev_password_id) : DEV_PW_DEFAULT;
     53 		s->config_methods = attr.sel_reg_config_methods ?
     54 			WPA_GET_BE16(attr.sel_reg_config_methods) : -1;
     55 		if (attr.authorized_macs) {
     56 			int count = attr.authorized_macs_len / ETH_ALEN;
     57 			if (count > WPS_MAX_AUTHORIZED_MACS)
     58 				count = WPS_MAX_AUTHORIZED_MACS;
     59 			os_memcpy(s->authorized_macs, attr.authorized_macs,
     60 				  count * ETH_ALEN);
     61 		} else if (!attr.version2) {
     62 			wpa_printf(MSG_DEBUG, "WPS: Add broadcast "
     63 				   "AuthorizedMACs for WPS 1.0 ER");
     64 			os_memset(s->authorized_macs, 0xff, ETH_ALEN);
     65 		}
     66 		eloop_register_timeout(WPS_PBC_WALK_TIME, 0,
     67 				       upnp_er_set_selected_timeout, s, reg);
     68 	}
     69 
     70 	wps_registrar_selected_registrar_changed(reg, 0);
     71 
     72 	return 0;
     73 }
     74 
     75 
     76 void upnp_er_remove_notification(struct wps_registrar *reg,
     77 				 struct subscription *s)
     78 {
     79 	s->selected_registrar = 0;
     80 	eloop_cancel_timeout(upnp_er_set_selected_timeout, s, reg);
     81 	if (reg)
     82 		wps_registrar_selected_registrar_changed(reg, 0);
     83 }
     84