Add an Android specific kernel_net_t implementation

This currently provides only no-ops and is just added because a
kernel-net implementation is required and kernel-netlink can't be used
at the moment.

src/frontends/android/jni/libandroidbridge/Android.mk

@@ -4,7 +4,8 @@ include $(CLEAR_VARS)
 # copy-n-paste from Makefile.am
 LOCAL_SRC_FILES := \
 android_jni.c android_jni.h \
-charonservice.c charonservice.h
+charonservice.c charonservice.h \
+kernel/android_net.c kernel/android_net.h
 
 # build libandroidbridge -------------------------------------------------------
 

src/frontends/android/jni/libandroidbridge/charonservice.c

@@ -21,6 +21,7 @@
 
 #include "charonservice.h"
 #include "android_jni.h"
+#include "kernel/android_net.h"
 
 #include <daemon.h>
 #include <hydra.h>
@@ -94,6 +95,10 @@ static void dbg_android(debug_t group, level_t level, char *fmt, ...)
 static void charonservice_init(JNIEnv *env, jobject service)
 {
 	private_charonservice_t *this;
+	static plugin_feature_t features[] = {
+		PLUGIN_CALLBACK(kernel_net_register, kernel_android_net_create),
+			PLUGIN_PROVIDE(CUSTOM, "kernel-net"),
+	};
 
 	INIT(this,
 		.public = {
@@ -102,6 +107,9 @@ static void charonservice_init(JNIEnv *env, jobject service)
 	);
 	charonservice = &this->public;
 
+	lib->plugins->add_static_features(lib->plugins, "androidbridge", features,
+									  countof(features), TRUE);
+
 	lib->settings->set_int(lib->settings,
 					"charon.plugins.android_log.loglevel", ANDROID_DEBUG_LEVEL);
 }

src/frontends/android/jni/libandroidbridge/charonservice.h

@@ -18,6 +18,9 @@
 /**
  * @defgroup libandroidbridge libandroidbridge
  *
+ * @defgroup android_kernel kernel
+ * @ingroup libandroidbridge
+ *
  * @defgroup charonservice charonservice
  * @{ @ingroup libandroidbridge
  */

src/frontends/android/jni/libandroidbridge/kernel/android_net.c

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2012 Tobias Brunner
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.  *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include "android_net.h"
+
+typedef struct private_kernel_android_net_t private_kernel_android_net_t;
+
+struct private_kernel_android_net_t {
+
+	/**
+	 * Public kernel interface
+	 */
+	kernel_android_net_t public;
+};
+
+METHOD(kernel_net_t, add_ip, status_t,
+	private_kernel_android_net_t *this, host_t *virtual_ip, host_t *iface_ip)
+{
+	/* we get the IP from the IKE_SA once the CHILD_SA is established */
+	return SUCCESS;
+}
+
+METHOD(kernel_net_t, destroy, void,
+	private_kernel_android_net_t *this)
+{
+	free(this);
+}
+
+/*
+ * Described in header.
+ */
+kernel_android_net_t *kernel_android_net_create()
+{
+	private_kernel_android_net_t *this;
+
+	INIT(this,
+		.public = {
+			.interface = {
+				.get_source_addr = (void*)return_null,
+				.get_nexthop = (void*)return_null,
+				.get_interface = (void*)return_null,
+				.create_address_enumerator = (void*)enumerator_create_empty,
+				.add_ip = _add_ip,
+				.del_ip = (void*)return_failed,
+				.add_route = (void*)return_failed,
+				.del_route = (void*)return_failed,
+				.destroy = _destroy,
+			},
+		},
+	);
+
+	return &this->public;
+};

src/frontends/android/jni/libandroidbridge/kernel/android_net.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2012 Tobias Brunner
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+/**
+ * @defgroup kernel_android_net kernel_android_net
+ * @{ @ingroup kernel_android
+ */
+
+#ifndef KERNEL_ANDROID_NET_H_
+#define KERNEL_ANDROID_NET_H_
+
+#include <library.h>
+#include <kernel/kernel_net.h>
+
+typedef struct kernel_android_net_t kernel_android_net_t;
+
+/**
+ * Implementation of the kernel-net interface.  This currently consists of only
+ * noops because a kernel_net_t implementation is required and we can't use
+ * kernel_netlink_net_t at the moment.
+ */
+struct kernel_android_net_t {
+
+	/**
+	 * Implements kernel_net_t interface
+	 */
+	kernel_net_t interface;
+};
+
+/**
+ * Create a android net interface instance.
+ *
+ * @return			kernel_android_net_t instance
+ */
+kernel_android_net_t *kernel_android_net_create();
+
+#endif /** KERNEL_ANDROID_NET_H_ @}*/