+ if (__connman_dhcpv6_start_renew(network,
+ dhcpv6_renew_callback) == -ETIMEDOUT)
+ dhcpv6_renew_callback(network, FALSE);
+ } else
+ stop_dhcpv6(network);
+}
+
+static void check_dhcpv6(struct nd_router_advert *reply,
+ unsigned int length, void *user_data)
+{
+ struct connman_network *network = user_data;
+ GSList *prefixes;
+
+ DBG("reply %p", reply);
+
+ if (reply == NULL) {
+ /*
+ * Router solicitation message seem to get lost easily so
+ * try to send it again.
+ */
+ if (network->router_solicit_count > 0) {
+ DBG("re-send router solicitation %d",
+ network->router_solicit_count);
+ network->router_solicit_count--;
+ __connman_inet_ipv6_send_rs(network->index, 1,
+ check_dhcpv6, network);
+ return;
+ }
+ connman_network_unref(network);
+ return;
+ }
+
+ network->router_solicit_count = 0;
+
+ /*
+ * If we were disconnected while waiting router advertisement,
+ * we just quit and do not start DHCPv6
+ */
+ if (network->connected == FALSE) {
+ connman_network_unref(network);
+ return;
+ }
+
+ prefixes = __connman_inet_ipv6_get_prefixes(reply, length);
+
+ /*
+ * We do stateful/stateless DHCPv6 if router advertisement says so.
+ */
+ if (reply->nd_ra_flags_reserved & ND_RA_FLAG_MANAGED)
+ __connman_dhcpv6_start(network, prefixes, dhcpv6_callback);
+ else if (reply->nd_ra_flags_reserved & ND_RA_FLAG_OTHER)
+ __connman_dhcpv6_start_info(network, dhcpv6_info_callback);
+
+ connman_network_unref(network);
+}
+
+static void receive_refresh_rs_reply(struct nd_router_advert *reply,
+ unsigned int length, void *user_data)
+{
+ struct connman_network *network = user_data;
+
+ DBG("reply %p", reply);
+
+ if (reply == NULL) {
+ /*
+ * Router solicitation message seem to get lost easily so
+ * try to send it again.
+ */
+ if (network->router_solicit_refresh_count > 1) {
+ network->router_solicit_refresh_count--;
+ DBG("re-send router solicitation %d",
+ network->router_solicit_refresh_count);
+ __connman_inet_ipv6_send_rs(network->index,
+ RS_REFRESH_TIMEOUT,
+ receive_refresh_rs_reply,
+ network);
+ return;
+ }
+ }
+
+ /* RS refresh not in progress anymore */
+ network->router_solicit_refresh_count = 0;
+
+ connman_network_unref(network);
+ return;
+}
+
+int __connman_refresh_rs_ipv6(struct connman_network *network, int index)
+{
+ int ret = 0;
+
+ DBG("network %p index %d", network, index);
+
+ /* Send only one RS for all RDNSS entries which are about to expire */
+ if (network->router_solicit_refresh_count > 0) {
+ DBG("RS refresh already started");
+ return 0;
+ }
+
+ network->router_solicit_refresh_count = RS_REFRESH_COUNT;
+
+ connman_network_ref(network);
+
+ ret = __connman_inet_ipv6_send_rs(index, RS_REFRESH_TIMEOUT,
+ receive_refresh_rs_reply, network);
+ return ret;
+}
+
+static void autoconf_ipv6_set(struct connman_network *network)
+{
+ struct connman_service *service;
+ struct connman_ipconfig *ipconfig;
+ int index;
+
+ DBG("network %p", network);
+
+ if (network->router_solicit_count > 0) {
+ /*
+ * The autoconfiguration is already pending and we have sent
+ * router solicitation messages and are now waiting answers.
+ * There is no need to continue any further.
+ */
+ DBG("autoconfiguration already started");
+ return;
+ }
+
+ __connman_device_set_network(network->device, network);
+
+ connman_device_set_disconnected(network->device, FALSE);
+
+ network->connecting = FALSE;
+
+ service = __connman_service_lookup_from_network(network);
+ if (service == NULL)
+ return;
+
+ ipconfig = __connman_service_get_ip6config(service);
+ if (ipconfig == NULL)
+ return;
+
+ index = __connman_ipconfig_get_index(ipconfig);
+
+ connman_network_ref(network);
+
+ /* Try to get stateless DHCPv6 information, RFC 3736 */
+ network->router_solicit_count = 3;
+ __connman_inet_ipv6_send_rs(index, 1, check_dhcpv6, network);
+}
+
+static void set_connected(struct connman_network *network)
+{
+ struct connman_ipconfig *ipconfig_ipv4, *ipconfig_ipv6;
+ enum connman_ipconfig_method ipv4_method, ipv6_method;
+ struct connman_service *service;
+ int ret;
+
+ if (network->connected == TRUE)
+ return;
+
+ network->connected = TRUE;
+
+ service = __connman_service_lookup_from_network(network);
+
+ ipconfig_ipv4 = __connman_service_get_ip4config(service);
+ ipconfig_ipv6 = __connman_service_get_ip6config(service);
+
+ DBG("service %p ipv4 %p ipv6 %p", service, ipconfig_ipv4,
+ ipconfig_ipv6);
+
+ ipv4_method = __connman_ipconfig_get_method(ipconfig_ipv4);
+ ipv6_method = __connman_ipconfig_get_method(ipconfig_ipv6);
+
+ DBG("method ipv4 %d ipv6 %d", ipv4_method, ipv6_method);
+
+ switch (ipv6_method) {
+ case CONNMAN_IPCONFIG_METHOD_UNKNOWN:
+ case CONNMAN_IPCONFIG_METHOD_OFF:
+ break;
+ case CONNMAN_IPCONFIG_METHOD_DHCP:
+ case CONNMAN_IPCONFIG_METHOD_AUTO:
+ autoconf_ipv6_set(network);
+ break;
+ case CONNMAN_IPCONFIG_METHOD_FIXED:
+ case CONNMAN_IPCONFIG_METHOD_MANUAL:
+ ret = manual_ipv6_set(network, ipconfig_ipv6);
+ if (ret != 0) {
+ connman_network_set_error(network,