android clat service

This software provides the nat 4->6 translation needed for the "clat" part of
the 464xlat standard.  It is needed for better IPv4 application support while
on an IPv6-only mobile network connection using 464xlat's nat64 (such as
T-Mobile's IPv6 trial).

A general diagram of how 464xlat works:
http://dan.drown.org/android/clat/Clat-Plat.png

Depends-on: I2392f8127dcd90d16b0f20ff31bcc5aa096db464
Change-Id: If2bc6916fc66fd4bca7cc241c83cfae839b82e15
Signed-off-by: Daniel Drown <dan-android@drown.org>

1 files changed, 35 insertions, 0 deletions

diff --git a/getroute.h b/getroute.h
new file mode 100644
index 0000000..e7b8670
--- /dev/null
+++ b/getroute.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2012 Daniel Drown
+ *
+ * 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.
+ *
+ * getroute.h - get an ip route
+ */
+#ifndef __GETROUTE_H__
+#define __GETROUTE_H__
+
+// for union anyip
+#include "getaddr.h"
+
+struct default_route_data {
+  int request_interface_id;
+  int request_family;
+
+  union anyip reply_gateway;
+  int reply_has_gateway;
+  int reply_found_route;
+};
+
+int get_default_route(struct default_route_data *default_route);
+
+#endif