android: Added a Java part to the Android IMC

src/frontends/android/jni/libandroidbridge/byod/imc_android.c

@@ -15,6 +15,7 @@
  */
 
 #include "imc_android_state.h"
+#include "../android_jni.h"
 
 #include <tnc/tnc.h>
 #include <libpts.h>
@@ -45,6 +46,16 @@ static pen_type_t msg_types[] = {
 
 static imc_agent_t *imc_android;
 
+/**
+ * AndroidImc object accessed via JNI
+ */
+static jobject android_imc;
+
+/**
+ * AndroidImc class object
+ */
+static jclass android_imc_cls;
+
 /**
  * see section 3.8.1 of TCG TNC IF-IMC Specification 1.3
  */
@@ -382,13 +393,59 @@ TNC_Result TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id,
 bool imc_android_register(plugin_t *plugin, plugin_feature_t *feature,
 						  bool reg, void *data)
 {
+	JNIEnv *env;
+	jmethodID method_id;
+	jobject obj, context = (jobject)data;
+	jclass cls;
+	bool success = TRUE;
+
+	androidjni_attach_thread(&env);
 	if (reg)
 	{
-		return tnc->imcs->load_from_functions(tnc->imcs, "android",
+		cls = (*env)->FindClass(env, JNI_PACKAGE_STRING "/imc/AndroidImc");
+		if (!cls)
+		{
+			goto failed;
+		}
+		android_imc_cls = (*env)->NewGlobalRef(env, cls);
+		method_id = (*env)->GetMethodID(env, cls, "<init>",
+										"(Landroid/content/Context;)V");
+		if (!method_id)
+		{
+			goto failed;
+		}
+		obj = (*env)->NewObject(env, cls, method_id, context);
+		if (!obj)
+		{
+			goto failed;
+		}
+		android_imc = (*env)->NewGlobalRef(env, obj);
+		androidjni_detach_thread();
+
+		if (tnc->imcs->load_from_functions(tnc->imcs, "Android",
 							TNC_IMC_Initialize, TNC_IMC_NotifyConnectionChange,
 							TNC_IMC_BeginHandshake, TNC_IMC_ReceiveMessage,
 							TNC_IMC_ReceiveMessageLong, TNC_IMC_BatchEnding,
-							TNC_IMC_Terminate, TNC_IMC_ProvideBindFunction);
+							TNC_IMC_Terminate, TNC_IMC_ProvideBindFunction))
+		{
+			return TRUE;
+		}
+failed:
+		DBG1(DBG_IMC, "initialization of Android IMC failed");
+		androidjni_exception_occurred(env);
+		success = FALSE;
 	}
-	return TRUE;
+
+	if (android_imc)
+	{
+		(*env)->DeleteGlobalRef(env, android_imc);
+		android_imc = NULL;
+	}
+	if (android_imc_cls)
+	{
+		(*env)->DeleteGlobalRef(env, android_imc_cls);
+		android_imc_cls = NULL;
+	}
+	androidjni_detach_thread();
+	return success;
 }

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

@@ -462,14 +462,6 @@ static void charonservice_init(JNIEnv *env, jobject service, jobject builder)
 			PLUGIN_PROVIDE(CUSTOM, "android-backend"),
 				PLUGIN_DEPENDS(CUSTOM, "libcharon"),
 	};
-#ifdef USE_BYOD
-	static plugin_feature_t byod_features[] = {
-		PLUGIN_CALLBACK(imc_android_register, NULL),
-			PLUGIN_PROVIDE(CUSTOM, "android-imc"),
-				PLUGIN_DEPENDS(CUSTOM, "android-backend"),
-				PLUGIN_DEPENDS(CUSTOM, "imc-manager"),
-	};
-#endif
 
 	INIT(this,
 		.public = {
@@ -494,8 +486,17 @@ static void charonservice_init(JNIEnv *env, jobject service, jobject builder)
 									  countof(features), TRUE);
 
 #ifdef USE_BYOD
-	lib->plugins->add_static_features(lib->plugins, "android-byod",
+	{
+		plugin_feature_t byod_features[] = {
+			PLUGIN_CALLBACK(imc_android_register, this->vpn_service),
+				PLUGIN_PROVIDE(CUSTOM, "android-imc"),
+					PLUGIN_DEPENDS(CUSTOM, "android-backend"),
+					PLUGIN_DEPENDS(CUSTOM, "imc-manager"),
+		};
+
+		lib->plugins->add_static_features(lib->plugins, "android-byod",
 								byod_features, countof(byod_features), TRUE);
+	}
 #endif
 }
 

src/frontends/android/src/org/strongswan/android/logic/imc/AndroidImc.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+package org.strongswan.android.logic.imc;
+
+import android.content.Context;
+
+public class AndroidImc
+{
+	private final Context mContext;
+
+	public AndroidImc(Context context)
+	{
+		mContext = context;
+	}
+}