+ ns = connman_setting_get_string_list("FallbackNameservers");
+ if (ns) {
+ if (ns[0]) {
+ g_free(private_network_primary_dns);
+ private_network_primary_dns = g_strdup(ns[0]);
+ }
+ if (ns[1]) {
+ g_free(private_network_secondary_dns);
+ private_network_secondary_dns = g_strdup(ns[1]);
+ }
+
+ DBG("Fallback ns primary %s secondary %s",
+ private_network_primary_dns,
+ private_network_secondary_dns);
+ }
+
+ dns = gateway;
+ if (__connman_dnsproxy_add_listener(index) < 0) {
+ connman_error("Can't add listener %s to DNS proxy",
+ BRIDGE_NAME);
+ dns = private_network_primary_dns;
+ DBG("Serving %s nameserver to clients", dns);
+ }
+
+ tethering_dhcp_server = dhcp_server_start(BRIDGE_NAME,
+ gateway, subnet_mask,
+ start_ip, end_ip,
+ 24 * 3600, dns);
+ if (!tethering_dhcp_server) {
+ __connman_bridge_disable(BRIDGE_NAME);
+ __connman_ippool_free(dhcp_ippool);
+ dhcp_ippool = NULL;
+ __connman_bridge_remove(BRIDGE_NAME);
+ __sync_fetch_and_sub(&tethering_enabled, 1);
+ return -EOPNOTSUPP;
+ }
+
+ prefixlen = connman_ipaddress_calc_netmask_len(subnet_mask);
+ err = __connman_nat_enable(BRIDGE_NAME, start_ip, prefixlen);
+ if (err < 0) {
+ connman_error("Cannot enable NAT %d/%s", err, strerror(-err));
+ dhcp_server_stop(tethering_dhcp_server);
+ __connman_bridge_disable(BRIDGE_NAME);
+ __connman_ippool_free(dhcp_ippool);
+ dhcp_ippool = NULL;
+ __connman_bridge_remove(BRIDGE_NAME);
+ __sync_fetch_and_sub(&tethering_enabled, 1);