+static void stop_dhcpv6(struct connman_network *network)
+{
+ __connman_dhcpv6_stop(network);
+}
+
+static void dhcpv6_release_callback(struct connman_network *network,
+ connman_bool_t success)
+{
+ DBG("success %d", success);
+
+ stop_dhcpv6(network);
+}
+
+static void release_dhcpv6(struct connman_network *network)
+{
+ __connman_dhcpv6_start_release(network, dhcpv6_release_callback);
+ stop_dhcpv6(network);
+}
+
+static void dhcpv6_info_callback(struct connman_network *network,
+ connman_bool_t success)
+{
+ DBG("success %d", success);
+
+ stop_dhcpv6(network);
+}
+
+static gboolean dhcpv6_set_addresses(struct connman_network *network)
+{
+ struct connman_service *service;
+ struct connman_ipconfig *ipconfig_ipv6;
+ int err = -EINVAL;
+
+ service = __connman_service_lookup_from_network(network);
+ if (service == NULL)
+ goto err;
+
+ connman_network_set_associating(network, FALSE);
+
+ network->connecting = FALSE;
+
+ ipconfig_ipv6 = __connman_service_get_ip6config(service);
+ err = __connman_ipconfig_address_add(ipconfig_ipv6);
+ if (err < 0)
+ goto err;
+
+ err = __connman_ipconfig_gateway_add(ipconfig_ipv6);
+ if (err < 0)
+ goto err;
+
+ return 0;
+
+err:
+ connman_network_set_error(network,
+ CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
+ return err;
+}
+
+static void autoconf_ipv6_set(struct connman_network *network);
+static void dhcpv6_callback(struct connman_network *network,
+ connman_bool_t success);
+
+/*
+ * Have a separate callback for renew so that we do not do autoconf
+ * in wrong phase as the dhcpv6_callback() is also called when doing
+ * DHCPv6 solicitation.
+ */
+static void dhcpv6_renew_callback(struct connman_network *network,
+ connman_bool_t success)
+{
+ if (success == TRUE)
+ dhcpv6_callback(network, success);
+ else {
+ stop_dhcpv6(network);
+
+ /* restart and do solicit again. */
+ autoconf_ipv6_set(network);
+ }
+}
+
+static void dhcpv6_callback(struct connman_network *network,
+ connman_bool_t success)
+{
+ DBG("success %d", success);
+
+ /* Start the renew process if necessary */
+ if (success == TRUE) {
+
+ if (dhcpv6_set_addresses(network) < 0) {
+ stop_dhcpv6(network);
+ return;
+ }
+
+ 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;
+}
+