ila: Flush netlink command to clear xlat table

Add ILA_CMD_FLUSH netlink command to clear the ILA translation table.

Signed-off-by: Tom Herbert <tom@quantonium.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/ila/ila_main.c

@@ -26,6 +26,12 @@ static const struct genl_ops ila_nl_ops[] = {
 		.policy = ila_nl_policy,
 		.flags = GENL_ADMIN_PERM,
 	},
+	{
+		.cmd = ILA_CMD_FLUSH,
+		.doit = ila_xlat_nl_cmd_flush,
+		.policy = ila_nl_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
 	{
 		.cmd = ILA_CMD_GET,
 		.doit = ila_xlat_nl_cmd_get_mapping,