+static void emit_station_signal(char *action_str,
+ const struct connman_station_info *station_info)
+{
+ char *ip, *mac, *hostname;
+
+ if (station_info->path == NULL || station_info->type == NULL
+ || station_info->ip == NULL || station_info->mac == NULL
+ || station_info->hostname == NULL)
+ return;
+
+ ip = g_strdup(station_info->ip);
+ mac = g_strdup(station_info->mac);
+ hostname = g_strdup(station_info->hostname);
+
+ g_dbus_emit_signal(connection, station_info->path,
+ CONNMAN_TECHNOLOGY_INTERFACE, action_str,
+ DBUS_TYPE_STRING, &station_info->type,
+ DBUS_TYPE_STRING, &ip,
+ DBUS_TYPE_STRING, &mac,
+ DBUS_TYPE_STRING, &hostname,
+ DBUS_TYPE_INVALID);
+
+ g_free(ip);
+ g_free(mac);
+ g_free(hostname);
+}
+static void destroy_station(gpointer key, gpointer value, gpointer user_data)
+{
+ struct connman_station_info *station_info;
+
+ __sync_synchronize();
+
+ station_info = value;
+
+ if (station_info->is_connected) {
+ station_info->is_connected = FALSE;
+ emit_station_signal("DhcpLeaseDeleted", station_info);
+ }
+
+ g_free(station_info->path);
+ g_free(station_info->type);
+ g_free(station_info);
+}
+
+static void save_dhcp_ack_lease_info(char *hostname,
+ unsigned char *mac, unsigned int nip)
+{
+ char *lower_mac;
+ const char *ip;
+ char sta_mac[CONNMAN_STATION_MAC_INFO_LEN];
+ struct connman_station_info *info_found;
+ struct in_addr addr;
+ int str_len;
+
+ __sync_synchronize();
+
+ snprintf(sta_mac, CONNMAN_STATION_MAC_INFO_LEN,
+ "%02x:%02x:%02x:%02x:%02x:%02x",
+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ lower_mac = g_ascii_strdown(sta_mac, -1);
+
+ info_found = g_hash_table_lookup(sta_hash, lower_mac);
+ if (info_found == NULL) {
+ g_free(lower_mac);
+ return;
+ }
+
+ /* get the ip */
+ addr.s_addr = nip;
+ ip = inet_ntoa(addr);
+ str_len = strlen(ip) + 1;
+ if (str_len > CONNMAN_STATION_STR_INFO_LEN)
+ str_len = CONNMAN_STATION_STR_INFO_LEN - 1;
+ memcpy(info_found->ip, ip, str_len);
+
+ /* get hostname */
+ str_len = strlen(hostname) + 1;
+ if (str_len > CONNMAN_STATION_STR_INFO_LEN)
+ str_len = CONNMAN_STATION_STR_INFO_LEN - 1;
+ memcpy(info_found->hostname, hostname, str_len);
+
+ /* emit a signal */
+ info_found->is_connected = TRUE;
+ emit_station_signal("DhcpConnected", info_found);
+ g_free(lower_mac);
+}
+
+int connman_technology_tethering_add_station(enum connman_service_type type,
+ const char *mac)
+{
+ const char *str_type;
+ char *lower_mac;
+ char *path;
+ struct connman_station_info *station_info;
+
+ __sync_synchronize();
+
+ DBG("type %d", type);
+
+ str_type = __connman_service_type2string(type);
+ if (str_type == NULL)
+ return 0;
+
+ path = g_strdup_printf("%s/technology/%s", CONNMAN_PATH, str_type);
+
+ station_info = g_try_new0(struct connman_station_info, 1);
+ if (station_info == NULL)
+ return -ENOMEM;
+
+ lower_mac = g_ascii_strdown(mac, -1);
+
+ memcpy(station_info->mac, lower_mac, strlen(lower_mac) + 1);
+ station_info->path = path;
+ station_info->type = g_strdup(str_type);
+
+ g_hash_table_insert(sta_hash, station_info->mac, station_info);
+
+ g_free(lower_mac);
+ return 0;
+}
+
+int connman_technology_tethering_remove_station(const char *mac)
+{
+ char *lower_mac;
+ struct connman_station_info *info_found;
+
+ __sync_synchronize();
+
+ lower_mac = g_ascii_strdown(mac, -1);
+
+ info_found = g_hash_table_lookup(sta_hash, lower_mac);
+ if (info_found == NULL) {
+ g_free(lower_mac);
+ return -EACCES;
+ }
+
+ if (info_found->is_connected) {
+ info_found->is_connected = FALSE;
+ emit_station_signal("DhcpLeaseDeleted", info_found);
+ }
+ g_free(lower_mac);
+ g_hash_table_remove(sta_hash, info_found->mac);
+ g_free(info_found->path);
+ g_free(info_found->type);
+ g_free(info_found);
+
+ return 0;
+}
+