diff --git a/setroute.h b/setroute.h
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--- /dev/null
+++ b/setroute.h
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+/*
+ * Copyright 2012 Daniel Drown <dan-android@drown.org>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * setroute.h - network route configuration
+ */
+
+#ifndef __SETROUTE_H__
+#define __SETROUTE_H__
+
+#define ROUTE_DELETE 0
+#define ROUTE_REPLACE 1
+#define ROUTE_CREATE 2
+int if_route(const char *ifname, int family, const void *destination, int cidr, const void *gateway, int metric, int mtu, int change_type);
+void set_default_ipv6_route(const char *device);
+
+#endif