Don't wait while removing external IPs used for load testing

src/libhydra/kernel/kernel_interface.c

@@ -323,13 +323,13 @@ METHOD(kernel_interface_t, add_ip, status_t,
 }
 
 METHOD(kernel_interface_t, del_ip, status_t,
-	private_kernel_interface_t *this, host_t *virtual_ip, int prefix)
+	private_kernel_interface_t *this, host_t *virtual_ip, int prefix, bool wait)
 {
 	if (!this->net)
 	{
 		return NOT_SUPPORTED;
 	}
-	return this->net->del_ip(this->net, virtual_ip, prefix);
+	return this->net->del_ip(this->net, virtual_ip, prefix, wait);
 }
 
 METHOD(kernel_interface_t, add_route, status_t,

src/libhydra/kernel/kernel_interface.h

@@ -349,9 +349,11 @@ struct kernel_interface_t {
 	 *
 	 * @param virtual_ip	virtual ip address to assign
 	 * @param prefix		prefix length of the IP to uninstall, -1 for auto
+	 * @param wait			TRUE to wait untily IP is gone
 	 * @return				SUCCESS if operation completed
 	 */
-	status_t (*del_ip) (kernel_interface_t *this, host_t *virtual_ip, int prefix);
+	status_t (*del_ip) (kernel_interface_t *this, host_t *virtual_ip,
+						int prefix, bool wait);
 
 	/**
 	 * Add a route.

src/libhydra/kernel/kernel_net.h

@@ -128,9 +128,11 @@ struct kernel_net_t {
 	 *
 	 * @param virtual_ip	virtual ip address to assign
 	 * @param prefix		prefix length of the IP to uninstall, -1 for auto
+	 * @param wait			TRUE to wait until IP is gone
 	 * @return				SUCCESS if operation completed
 	 */
-	status_t (*del_ip) (kernel_net_t *this, host_t *virtual_ip, int prefix);
+	status_t (*del_ip) (kernel_net_t *this, host_t *virtual_ip, int prefix,
+						bool wait);
 
 	/**
 	 * Add a route.

src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c

@@ -1758,7 +1758,8 @@ METHOD(kernel_net_t, add_ip, status_t,
 }
 
 METHOD(kernel_net_t, del_ip, status_t,
-	private_kernel_netlink_net_t *this, host_t *virtual_ip, int prefix)
+	private_kernel_netlink_net_t *this, host_t *virtual_ip, int prefix,
+	bool wait)
 {
 	addr_map_entry_t *entry, lookup = {
 		.ip = virtual_ip,
@@ -1798,7 +1799,7 @@ METHOD(kernel_net_t, del_ip, status_t,
 		entry->addr->installed = FALSE;
 		status = manage_ipaddr(this, RTM_DELADDR, 0, entry->iface->ifindex,
 							   virtual_ip, prefix);
-		if (status == SUCCESS)
+		if (status == SUCCESS && wait)
 		{	/* wait until the address is really gone */
 			while (is_known_vip(this, virtual_ip))
 			{

src/libhydra/plugins/kernel_pfroute/kernel_pfroute_net.c

@@ -647,7 +647,8 @@ METHOD(kernel_net_t, add_ip, status_t,
 }
 
 METHOD(kernel_net_t, del_ip, status_t,
-	private_kernel_pfroute_net_t *this, host_t *virtual_ip, int prefix)
+	private_kernel_pfroute_net_t *this, host_t *virtual_ip, int prefix,
+	bool wait)
 {
 	return FAILED;
 }