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#include <jni.h>
#include <android/log.h>
#include <stdlib.h>
#include <setjmp.h>
#include "jniglue.h"
JNIEXPORT jint Java_de_blinkt_OpenVPN_startOpenVPNThread(JNIEnv* env, jclass jc);
extern int main (int argc, char *argv[]);
static jmp_buf jump_buffer;
int callmain (int argc, char *argv[]) {
if(!setjmp(jump_buffer))
main(argc,argv);
}
void android_openvpn_exit(int status) {
longjmp(jump_buffer,status+1);
}
void testmsg(char* m1, ...) {
va_list arglist;
va_start(arglist,m1);
// vsnprintf(m1, 100, "foo bbaz",arglist);
__android_log_vprint(ANDROID_LOG_DEBUG, "openvpn",m1, arglist);
va_end(arglist);
}
// Store env and class, we allow only one instance
// so make these variables global for now
jclass openvpnclass;
JNIEnv* openvpnjenv;
//Lde/blinkt/openvpn/OpenVPN startOpenVPNThread startOpenVPNThread
jint Java_de_blinkt_openvpn_OpenVPN_startOpenVPNThread(JNIEnv* env, jclass jc){
char* argv[] = {"openvpn", "--client",
"--dev","tun",
"--comp-lzo",
// "--redirect-gateway","def1",
// "--pkcs12","/mnt/sdcard/Network_Certificate.p12",
"--remote-cert-eku", "TLS Web Server Authentication",
"--remote","openvpn.uni-paderborn.de",
"--ca","/mnt/sdcard/ca.pem",
"--key","/mnt/sdcard/schwabe.key",
"--cert","/mnt/sdcard/schwabe.pem",
"--verb","4"
};
openvpnclass = jc;
openvpnjenv= env;
int argc=17;
return callmain(argc,argv);
}
void Java_de_blinkt_openvpn_OpenVPN_startOpenVPNThreadArgs(JNIEnv *env,jclass jc, jobjectArray stringArray) {
openvpnclass = jc;
openvpnjenv= env;
int stringCount = (*env)->GetArrayLength(env, stringArray);
const char** argv = calloc(stringCount,sizeof(const char*));
int i;
for (i=0; i<stringCount; i++) {
jstring string = (jstring) (*env)->GetObjectArrayElement(env, stringArray, i);
jboolean isCopy;
const char* rawString = (*env)->GetStringUTFChars(env, string, &isCopy);
// Copy the string to able to release it
argv[i] = rawString;
}
// Call main
callmain(stringCount,argv);
// Release the Strings
for(i=0; i<stringCount;i++){
jstring string = (jstring) (*env)->GetObjectArrayElement(env, stringArray, i);
(*env)->ReleaseStringUTFChars(env,string,argv[i]);
}
free(argv);
}
jint JNI_OnLoad(JavaVM *vm, void *reserved) {
__android_log_write(ANDROID_LOG_DEBUG,"openvpn", "Loading openvpn native library $id$ compiled on " __DATE__ " " __TIME__ );
return JNI_VERSION_1_2;
}
void addInterfaceInformation(int mtu,const char* ifconfig_local, const char* ifconfig_remote)
{
jstring jlocal = (*openvpnjenv)->NewStringUTF(openvpnjenv, ifconfig_local);
jstring jremote = (*openvpnjenv)->NewStringUTF(openvpnjenv, ifconfig_remote);
jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "addInterfaceInfo",
"(ILjava/lang/String;Ljava/lang/String;)V");
(*openvpnjenv)->CallStaticVoidMethod(openvpnjenv,openvpnclass,aMethodID,mtu,jlocal,jremote);
(*openvpnjenv)->DeleteLocalRef(openvpnjenv,jlocal);
(*openvpnjenv)->DeleteLocalRef(openvpnjenv,jremote);
}
void android_openvpn_log(int level,const char* prefix,const char* prefix_sep,const char* m1)
{
__android_log_print(ANDROID_LOG_DEBUG,"openvpn","%s%s%s",prefix,prefix_sep,m1);
jstring jprefix = (*openvpnjenv)->NewStringUTF(openvpnjenv, prefix);
jstring jmessage = (*openvpnjenv)->NewStringUTF(openvpnjenv, m1);
jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "logMessage",
"(ILjava/lang/String;Ljava/lang/String;)V");
(*openvpnjenv)->CallStaticVoidMethod(openvpnjenv,openvpnclass,aMethodID,level,jprefix,jmessage);
(*openvpnjenv)->DeleteLocalRef(openvpnjenv,jprefix);
(*openvpnjenv)->DeleteLocalRef(openvpnjenv,jmessage);
}
int android_open_tun () {
jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "openTunDevice",
"()I");
return (*openvpnjenv)->CallStaticIntMethod(openvpnjenv,openvpnclass,aMethodID);
}
void android_set_dns(const char* dns) {
jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "addDns",
"(Ljava/lang/String;)V");
jstring jdns = (*openvpnjenv)->NewStringUTF(openvpnjenv,dns);
(*openvpnjenv)->CallStaticVoidMethod(openvpnjenv,openvpnclass,aMethodID,jdns);
}
void android_set_domain(const char* domain) {
jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "addDomain",
"(Ljava/lang/String;)V");
jstring jdomain = (*openvpnjenv)->NewStringUTF(openvpnjenv,domain);
(*openvpnjenv)->CallStaticVoidMethod(openvpnjenv,openvpnclass,aMethodID,jdomain);
}
void addRouteInformation(const char* dest, const char* mask, const char* gw) {
jstring jmask = (*openvpnjenv)->NewStringUTF(openvpnjenv, mask);
jstring jdest = (*openvpnjenv)->NewStringUTF(openvpnjenv, dest);
jstring jgw = (*openvpnjenv)->NewStringUTF(openvpnjenv, gw);
jmethodID aMethodID = (*openvpnjenv)->GetStaticMethodID(openvpnjenv, openvpnclass, "addRoute",
"(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
(*openvpnjenv)->CallStaticVoidMethod(openvpnjenv,openvpnclass,aMethodID,jdest,jmask,jgw);
(*openvpnjenv)->DeleteLocalRef(openvpnjenv,jmask);
(*openvpnjenv)->DeleteLocalRef(openvpnjenv,jdest);
(*openvpnjenv)->DeleteLocalRef(openvpnjenv,jgw);
}
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