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Environs.Android.cpp
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/**
* Android JNI platform specific
* ------------------------------------------------------------------
* Copyright (c) Chi-Tai Dang
*
* @author Chi-Tai Dang
* @version 1.0
* @remarks
*
* This file is part of the Environs framework developed at the
* Lab for Human Centered Multimedia of the University of Augsburg.
* http://hcm-lab.de/environs
*
* Environ is free software; you can redistribute it and/or modify
* it under the terms of the Eclipse Public License v1.0.
* A copy of the license may be obtained at:
* http://www.eclipse.org/org/documents/epl-v10.html
* --------------------------------------------------------------------
*/
#include "stdafx.h"
/// Compiler flag that enables verbose debug output
#ifndef NDEBUG
//# define DEBUGVERB
//# define DEBUGVERBVerb
#endif
#ifdef ANDROID
#define ATTACH_JAVA_THREAD
#define USE_NATIVE_SENSOR_READER
#define EnvASENSOR_TYPE_ORIENTATION 3
#define EnvASENSOR_TYPE_PRESSURE 6
#define EnvASENSOR_TYPE_TEMPERATURE 7
#define EnvASENSOR_TYPE_GRAVITY 9
#define EnvASENSOR_TYPE_ACCELEROMETER_LINEAR 10
#define EnvASENSOR_TYPE_ROTATION_VECTOR 11
#define EnvASENSOR_TYPE_HUMIDITY 12
#define EnvASENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED 14
#define EnvASENSOR_TYPE_GAME_ROTATION_VECTOR 15
#define EnvASENSOR_TYPE_TYPE_GYROSCOPE_UNCALIBRATED 16
#define EnvASENSOR_TYPE_MOTION_SIGNIFICANT 17
#define EnvASENSOR_TYPE_STEP_DETECTOR 18
#define EnvASENSOR_TYPE_STEP_COUNTER 19
#define EnvASENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR 20
#define EnvASENSOR_TYPE_HEART_RATE 21
#define EnvASENSOR_TYPE_TILT_DETECTOR 23
#include <stdlib.h>
#include "Environs.Mobile.h"
#include "Environs.Lib.h"
#include "Environs.Obj.h"
#include "Environs.Crypt.h"
#include "Environs.Sensors.h"
#ifdef USE_NATIVE_SENSOR_READER
# include <android/sensor.h>
# include <android/looper.h>
#endif
// The TAG for prepending to log messages
#define CLASS_NAME "Environs.JNI . . . . . ."
using namespace environs::API;
namespace environs
{
JavaVM * g_JavaVM = 0;
jclass g_EnvironsClass = 0;
jmethodID g_BridgeForNotifyID = 0;
jmethodID g_BridgeForNotifyExtID = 0;
jmethodID g_BridgeForMessageID = 0;
jmethodID g_BridgeForMessageExtID = 0;
jmethodID g_BridgeForStatusMessageID = 0;
jmethodID g_BridgeForDataID = 0;
jmethodID g_BridgeForUdpDataID = 0;
jmethodID g_BridgeForOptSaveID = 0;
jmethodID g_BridgeForOptLoadID = 0;
jmethodID g_BridgeForUpdateNetworkStatus = 0;
jmethodID g_SHAHashCreate = 0;
jmethodID g_EncryptMessage = 0;
jmethodID g_DecryptMessage = 0;
jmethodID g_ReleaseCert = 0;
jmethodID g_AESDeriveKeyContext = 0;
jmethodID g_AESDisposeKeyContext = 0;
jmethodID g_AESUpdateKeyContext = 0;
jmethodID g_AESTransform = 0;
jmethodID g_GenerateCertificate = 0;
jmethodID g_java_mallocID = 0;
jmethodID g_java_freeID = 0;
jmethodID g_CreateInstance = 0;
jmethodID g_Encoder_Init = 0;
jmethodID g_DestroyInstance = 0;
// Initialize available to GPS. GPS will be handled by platform layer and not subscribed if not available
unsigned int sensorsAvailable = ENVIRONS_SENSOR_FLAG_LOCATION;
#ifdef USE_NATIVE_SENSOR_READER
ALooper * sensorLooper = 0;
ASensorManager * sensorManager = 0;
ASensorEventQueue * sensorEventQueue = 0;
bool sensorAccelSubscribed = false;
const ASensor * sensors [ SensorType::Max ] = { 0 };
const int getEnvSensorTypeByAndroidType [ ] = {
-1,
ENVIRONS_SENSOR_TYPE_ACCELEROMETER, // TYPE_ACCELEROMETER = 1;
ENVIRONS_SENSOR_TYPE_MAGNETICFIELD, // TYPE_MAGNETIC_FIELD = 2;
ENVIRONS_SENSOR_TYPE_ORIENTATION, // TYPE_ORIENTATION = 3; // Deprecated
ENVIRONS_SENSOR_TYPE_GYROSCOPE, // TYPE_GYROSCOPE = 4;
ENVIRONS_SENSOR_TYPE_LIGHT, // TYPE_LIGHT = 5;
ENVIRONS_SENSOR_TYPE_PRESSURE, // TYPE_PRESSURE = 6;
ENVIRONS_SENSOR_TYPE_TEMPERATURE, // TYPE_TEMPERATURE = 7; // Deprecated
ENVIRONS_SENSOR_TYPE_PROXIMITY, // TYPE_PROXIMITY = 8;
ENVIRONS_SENSOR_TYPE_GRAVITY, // TYPE_GRAVITY = 9;
ENVIRONS_SENSOR_TYPE_ACCELERATION, // TYPE_LINEAR_ACCELERATION = 10;
ENVIRONS_SENSOR_TYPE_ROTATION, // TYPE_ROTATION_VECTOR = 11;
ENVIRONS_SENSOR_TYPE_HUMIDITY, // TYPE_RELATIVE_HUMIDITY = 12;
ENVIRONS_SENSOR_TYPE_TEMPERATURE, // TYPE_AMBIENT_TEMPERATURE = 13;
ENVIRONS_SENSOR_TYPE_MAGNETICFIELD_UNCALIB, // TYPE_MAGNETIC_FIELD_UNCALIBRATED = 14;
ENVIRONS_SENSOR_TYPE_ROTATION_GAME, // TYPE_GAME_ROTATION_VECTOR = 15;
ENVIRONS_SENSOR_TYPE_GYROSCOPE_UNCALIB, // TYPE_GYROSCOPE_UNCALIBRATED = 16;
ENVIRONS_SENSOR_TYPE_MOTION_SIGNIFICANT, // TYPE_SIGNIFICANT_MOTION = 17;
ENVIRONS_SENSOR_TYPE_STEPPER, // TYPE_STEP_DETECTOR = 18;
ENVIRONS_SENSOR_TYPE_STEPS, // TYPE_STEP_COUNTER = 19;
ENVIRONS_SENSOR_TYPE_ROTATION_GEOMAGNETIC, // TYPE_GEOMAGNETIC_ROTATION_VECTOR = 20;
ENVIRONS_SENSOR_TYPE_HEARTRATE, // TYPE_HEART_RATE = 21;
ENVIRONS_SENSOR_TYPE_TILT, // TYPE_TILT_DETECTOR = 22;
};
#define envSensorTypeByAndroidTypeSize ( sizeof(getEnvSensorTypeByAndroidType) / sizeof(getEnvSensorTypeByAndroidType[0]) )
const int getAndroidSensorType [ ] = {
ASENSOR_TYPE_ACCELEROMETER, // ENVIRONS_SENSOR_TYPE_ACCELEROMETER
EnvASENSOR_TYPE_ACCELEROMETER_LINEAR, // ENVIRONS_SENSOR_TYPE_ACCELERATION_MOTION
ASENSOR_TYPE_MAGNETIC_FIELD, // ENVIRONS_SENSOR_FLAG_MAGNETICFIELD,
-1, // ENVIRONS_SENSOR_TYPE_MAGNETICFIELD_MOTION,
EnvASENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED, // ENVIRONS_SENSOR_TYPE_MAGNETICFIELD_UNCALIB,
ASENSOR_TYPE_GYROSCOPE, // ENVIRONS_SENSOR_FLAG_GYROSCOPE,
EnvASENSOR_TYPE_TYPE_GYROSCOPE_UNCALIBRATED, // ENVIRONS_SENSOR_TYPE_GYROSCOPE_UNCALIB,
EnvASENSOR_TYPE_ORIENTATION, // ENVIRONS_SENSOR_FLAG_ORIENTATION,
ASENSOR_TYPE_LIGHT, // ENVIRONS_SENSOR_FLAG_LIGHT,
-1, // ENVIRONS_SENSOR_FLAG_LOCATION,
-1, // ENVIRONS_SENSOR_FLAG_HEADING,
EnvASENSOR_TYPE_TEMPERATURE, // ENVIRONS_SENSOR_FLAG_ALTENVIRONS_SENSOR_FLAG_TEMPERATUREIMETER,
EnvASENSOR_TYPE_MOTION_SIGNIFICANT, // ENVIRONS_SENSOR_TYPE_MOTION_SIGNIFICANT,
EnvASENSOR_TYPE_PRESSURE, // ENVIRONS_SENSOR_TYPE_PRESSURE,
-1, // ENVIRONS_SENSOR_TYPE_ATTITUDE,
EnvASENSOR_TYPE_ROTATION_VECTOR, // ENVIRONS_SENSOR_TYPE_ROTATION,
EnvASENSOR_TYPE_GAME_ROTATION_VECTOR, // ENVIRONS_SENSOR_TYPE_ROTATION_GAME,
EnvASENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR, // ENVIRONS_SENSOR_TYPE_ROTATION_GEOMAGNETIC,
EnvASENSOR_TYPE_GRAVITY, // ENVIRONS_SENSOR_TYPE_GRAVITY,
EnvASENSOR_TYPE_STEP_DETECTOR, // ENVIRONS_SENSOR_TYPE_STEPPER,
EnvASENSOR_TYPE_STEP_COUNTER, // ENVIRONS_SENSOR_TYPE_STEPS,
EnvASENSOR_TYPE_TILT_DETECTOR, // ENVIRONS_SENSOR_TYPE_TILT,
EnvASENSOR_TYPE_HEART_RATE, // ENVIRONS_SENSOR_FLAG_HEARTRATE,
ASENSOR_TYPE_PROXIMITY, // ENVIRONS_SENSOR_FLAG_PROXIMITY,
-1, // ENVIRONS_SENSOR_FLAG_VOC,
-1, // ENVIRONS_SENSOR_FLAG_CO2,
EnvASENSOR_TYPE_HUMIDITY, // ENVIRONS_SENSOR_FLAG_HUMIDITY,
-1, // ENVIRONS_SENSOR_FLAG_CUSTOM,
-1, // MAX_ENVIRONS_SENSOR_TYPE_VALUE,
};
#define androidSensorTypeSize ( sizeof(getAndroidSensorType) / sizeof(getAndroidSensorType[0]))
#endif
bool AllocNativePlatform ()
{
CVerb ( "AllocNativePlatform" );
return true;
}
/*
* Method: AllocPlatform
* Signature: ()Z
*/
ENVIRONSAPI jboolean EnvironsProc ( AllocPlatformN )
{
CVerb ( "AllocPlatformN" );
return AllocNativePlatformMobile ();
}
/**
* Creates an application identifier by means of a UUID
*
* @param buffer The UUID will be stored in this buffer.
* @param bufSize The size of the buffer. Must be at least 180 bytes.
* @return success
*/
bool CreateAppID ( char * buffer, unsigned int bufSize )
{
return false;
}
/**
* Perform SDK checks to detect ...
*
*/
void DetectSDKs ( )
{
}
/**
* Perform platform checks to detect ...
*
*/
void DetectPlatform ( )
{
CVerbVerb ( "DetectPlatform" );
native.platform = Platforms::Tablet_Flag;
}
/**
* This is done by the android platform layer ...
*
*/
bool DetermineAndInitWorkDir ()
{
return true;
}
bool CreateInstancePlatform ( Instance * env )
{
SetCallbacksN ( env->hEnvirons, 0, ( void * ) BridgeForUdpData, (void *)BridgeForMessage, (void *)BridgeForMessageExt, (void *)BridgeForNotify, (void *)BridgeForNotifyExt, (void *)BridgeForData, (void *)BridgeForStatusMessage );
return true;
}
int AttachJavaThread ( JNIEnv *& env )
{
int ret = -1;
do
{
if ( !g_JavaVM || !g_EnvironsClass ) {
CErr ( "AttachJavaThread: Failed to call from jni to java - invalid jni resources!" );
break;
}
#ifdef ATTACH_JAVA_THREAD
int status = g_JavaVM->GetEnv ( (void **) &env, JNI_VERSION_1_6 );
if ( status < 0 ) {
CVerbVerb ( "AttachJavaThread: No JNI environment available, assuming native thread." );
#else
int
#endif
status = g_JavaVM->AttachCurrentThread ( &env, NULL );
if ( status < 0 ) {
CErr ( "AttachJavaThread: failed to attach current thread" );
break;
}
if ( !env ) {
CErr ( "AttachJavaThread: failed to get JNI environment" );
g_JavaVM->DetachCurrentThread ( );
break;
}
ret = 1;
break;
#ifdef ATTACH_JAVA_THREAD
}
if ( !env ) {
CErr ( "AttachJavaThread: failed to get JNI environment" );
break;
}
ret = 0;
#endif
}
while ( false );
return ret;
}
bool dPreparePrivateKey ( char ** privKey )
{
return true;
}
bool dUpdateKeyAndCert ( char * priv, char * cert )
{
return true;
}
bool dSHAHashCreate ( const char * msg, char ** hash, unsigned int * hashLen )
{
if ( !msg || !hashLen || !hash )
return false;
int status;
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return false;
bool ret = false;
char * retBlob = 0;
jbyteArray jMsg = 0;
do
{
jMsg = env->NewByteArray ( *hashLen );
if ( !jMsg ) {
CErr ( "SHAHashCreate: Alloc memory for cert failed." ); break;
}
env->SetByteArrayRegion ( jMsg, 0, *hashLen, (jbyte*)msg );
jobject jByteBuffer = env->CallStaticObjectMethod ( g_EnvironsClass, g_SHAHashCreate, jMsg );
if ( !jByteBuffer ) {
CErr ( "SHAHashCreate: Java call failed!" ); break;
}
int capacity = env->GetDirectBufferCapacity ( jByteBuffer );
char * buffer = (char *) env->GetDirectBufferAddress ( jByteBuffer );
if ( !buffer || capacity <= 0 ) {
CErr ( "SHAHashCreate: Failed to get reference to memory of the shared buffer!" ); break;
}
retBlob = (char *) malloc ( capacity + 1 );
if ( !retBlob ) {
CErr ( "SHAHashCreate: Failed to allocate memory for returning the blob!" ); break;
}
CVerbArg ( "SHAHashCreate: [ %s ]", ConvertToHexSpaceString ( buffer, capacity ) );
memcpy ( retBlob, buffer, capacity );
retBlob [capacity] = 0;
*hash = retBlob;
retBlob = 0;
*hashLen = capacity;
ret = true;
}
while ( 0 );
if ( retBlob ) free ( retBlob );
if ( jMsg ) env->DeleteLocalRef ( jMsg );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
return ret;
}
bool dGenerateCertificate ( char ** priv, char ** pub )
{
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return false;
bool ret = false;
char * privKey = 0;
char * pubKey = 0;
do
{
jobject jBuffer = env->CallStaticObjectMethod ( g_EnvironsClass, g_GenerateCertificate );
if ( !jBuffer ) {
CErr ( "GenerateCertificate: Java call failed." ); break;
}
int capacity = env->GetDirectBufferCapacity ( jBuffer );
unsigned char * buffer = (unsigned char *) env->GetDirectBufferAddress ( jBuffer );
if ( !buffer || capacity <= 0 ) {
CErr ( "GenerateCertificate: Failed to get reference to memory of the shared buffer!" );
break;
}
unsigned int length = *((unsigned int *)buffer);
length &= 0xFFFF;
length += 4;
privKey = (char *) malloc ( length );
if ( !privKey ) {
CErr ( "GenerateCertificate: Memory allocation failed." ); break;
}
CLogArg ( "GenerateCertificate: Copying [ %i ] bytes of encrypted message.", length );
memcpy ( privKey, buffer, length );
unsigned int length1 = *((unsigned int *)(buffer + length));
length1 &= 0xFFFF;
length1 += 4;
pubKey = (char *) malloc ( length1 );
if ( !pubKey ) {
CErr ( "GenerateCertificate: Memory allocation failed." ); break;
}
CLogArg ( "GenerateCertificate: Copying [ %i ] bytes of encrypted message.", length1 );
memcpy ( pubKey, buffer + length, length1 );
*priv = privKey;
privKey = 0;
*pub = pubKey;
pubKey = 0;
ret = true;
}
while ( 0 );
if ( privKey ) free ( privKey );
if ( pubKey ) free ( pubKey );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
return ret;
}
bool dEncryptMessage ( int deviceID, char * cert, char * msg, unsigned int * msgLen )
{
if ( !cert || !msg || !msgLen ) {
CErrID ( "EncryptMessage: Called with at least one null argument." );
return false;
}
unsigned int certProp = *((unsigned int *)cert);
unsigned int certSize = certProp & 0xFFFF;
CVerbArgID ( "EncryptMessage: Encrypting buffer sized [ %i ], certSize [ %u ]", *msgLen, certSize );
if (certSize > 64000) {
CErrArgID ( "EncryptMessage: Invalid certSize [ %u ]", certSize );
return false;
}
bool ret = false;
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return false;
jbyteArray jCert = 0;
jbyteArray jMsg = 0;
do
{
jCert = env->NewByteArray ( certSize );
if ( !jCert ) {
CErrID ( "EncryptMessage: Alloc memory for cert failed." ); break;
}
env->SetByteArrayRegion ( jCert, 0, certSize, (jbyte*)(cert + 4) );
jMsg = env->NewByteArray ( *msgLen );
if ( !jMsg ) {
CErrID ( "EncryptMessage: Alloc memory for message failed." ); break;
}
env->SetByteArrayRegion ( jMsg, 0, *msgLen, (jbyte*)msg );
jobject jCiphers = env->CallStaticObjectMethod ( g_EnvironsClass, g_EncryptMessage, deviceID, certProp, jCert, jMsg );
if ( !jCiphers ) {
CErrID ( "EncryptMessage: Java call failed." ); break;
}
int capacity = env->GetDirectBufferCapacity ( jCiphers );
unsigned char * buffer = (unsigned char *) env->GetDirectBufferAddress ( jCiphers );
if ( !buffer || capacity <= 0 ) {
CErrID ( "EncryptMessage: Failed to get reference to memory of the shared buffer!" );
}
else {
CVerbArgID ( "EncryptMessage: Copying [ %i ] bytes of encrypted message.", capacity );
memcpy ( msg, buffer, capacity );
msg [capacity] = 0;
*msgLen = capacity;
ret = true;
CVerbVerbArgID ( "EncryptMessage: ciphers [ %s ]", ConvertToHexSpaceString (msg, capacity) );
}
}
while ( 0 );
if ( jCert ) env->DeleteLocalRef ( jCert );
if ( jMsg ) env->DeleteLocalRef ( jMsg );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
return ret;
}
bool dDecryptMessage ( char * key, unsigned int keySize, char * msg, unsigned int msgLen, char ** decrypted, unsigned int * decryptedSize )
{
if ( !key || !msg || !msgLen || keySize > 64000 || !decrypted || !decryptedSize ) {
CErr ( "DecryptMessage: Called with at least one NULL (or invalid) argument." );
return false;
}
CVerbArg ( "DecryptMessage: Decrypting msg of size [ %i ]", msgLen );
key += 4;
bool ret = false;
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return false;
if ( pthread_mutex_lock ( &privKeyMutex ) ) {
CErr ( "DecryptMessage: Failed to acquire lock." );
return false;
}
jbyteArray jKey = 0;
jbyteArray jMsg = 0;
char * plainText = 0;
do
{
jKey = env->NewByteArray ( keySize );
if ( !jKey ) {
CErr ( "DecryptMessage: Alloc memory for cert failed." ); break;
}
env->SetByteArrayRegion ( jKey, 0, keySize, (jbyte*)key );
jMsg = env->NewByteArray ( msgLen );
if ( !jMsg ) {
CErr ( "DecryptMessage: Alloc memory for message failed." ); break;
}
env->SetByteArrayRegion ( jMsg, 0,msgLen, (jbyte*)msg );
jobject jCiphers = env->CallStaticObjectMethod ( g_EnvironsClass, g_DecryptMessage, jKey, jMsg );
if ( !jCiphers ) {
CErr ( "DecryptMessage: Java call failed." ); break;
}
int capacity = env->GetDirectBufferCapacity ( jCiphers );
unsigned char * buffer = (unsigned char *) env->GetDirectBufferAddress ( jCiphers );
if ( !buffer || capacity <= 0 ) {
CErr ( "DecryptMessage: Failed to get reference to memory of the shared buffer!" ); break;
}
plainText = (char *) malloc ( capacity + 1 );
if ( !plainText ) {
CErr ( "DecryptMessage: Memory alloc failed." ); break;
}
CVerbArg ( "DecryptMessage: Copying [ %i ] bytes of decrypted message.", capacity );
memcpy ( plainText, buffer, capacity );
plainText [capacity] = 0;
*decryptedSize = capacity;
*decrypted = plainText;
plainText = 0;
ret = true;
}
while ( 0 );
if ( plainText ) free ( plainText );
if ( jKey ) env->DeleteLocalRef ( jKey );
if ( jMsg ) env->DeleteLocalRef ( jMsg );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
if ( pthread_mutex_unlock ( &privKeyMutex ) ) {
CErr ( "DecryptMessage: Failed to release lock." );
ret = false;
}
return ret;
}
void dReleaseCert ( int deviceID )
{
CVerbArg ( "ReleaseCert: Disposing certificate context for deviceID [ %u ].", deviceID );
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return;
env->CallStaticVoidMethod ( g_EnvironsClass, g_ReleaseCert, deviceID );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
}
long keyDeviceIDCounter = 0xFFFFFFFF;
bool dAESDeriveKeyContext ( char * key, unsigned int keyLen, AESContext * ctx )
{
if ( !key || keyLen < AES_SHA256_KEY_LENGTH || !ctx ) {
CErrArg ( "AESDeriveKeyContext: Called with at least one NULL argument or keyLen [ %u ] < [ %u ].", keyLen, AES_SHA256_KEY_LENGTH ); return false;
}
CVerbVerb ( "AESDeriveKeyContext" );
//AESDisposeKeyContext ( ctx );
LockInit ( &ctx->encLock );
LockInit ( &ctx->decLock );
ctx->lockAllocated = true;
/// Assign a temporary deviceId if required
if ( ctx->deviceID == 0xFFFFFFFF ) {
ctx->deviceID = __sync_sub_and_fetch ( &keyDeviceIDCounter, 1 );
CVerbArg ( "AESDeriveKeyContext: Assigned temporary deviceID [ %i ].", (int)ctx->deviceID );
}
bool ret = false;
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return false;
jbyteArray jKey = 0;
do
{
jKey = env->NewByteArray ( keyLen );
if ( !jKey ) {
CErr ( "AESDeriveKeyContext: Alloc memory for jKey failed." ); break;
}
env->SetByteArrayRegion ( jKey, 0, keyLen, (jbyte*)key );
jobject jKeys = env->CallStaticObjectMethod ( g_EnvironsClass, g_AESDeriveKeyContext, ctx->deviceID, jKey, keyLen, AES_SHA256_KEY_LENGTH );
if ( !jKeys ) {
CErr ( "AESDeriveKeyContext: Java call failed." ); break;
}
int capacity = env->GetDirectBufferCapacity ( jKeys );
unsigned char * buffer = (unsigned char *) env->GetDirectBufferAddress ( jKeys );
if ( !buffer || capacity <= 0 ) {
CErr ( "AESDeriveKeyContext: Failed to get reference to memory of the shared buffer!" ); break;
}
if ( capacity < AES_SHA256_KEY_LENGTH ){
CErr ( "AESDeriveKeyContext: Insufficient key data received from java call!" ); break;
}
ctx->encCtx = (char *) 1;
ctx->decCtx = (char *) 1;
ctx->size = AES_SHA256_KEY_LENGTH;
ret = true;
}
while ( 0 );
if ( jKey ) env->DeleteLocalRef ( jKey );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
return ret;
}
void dAESDisposeKeyContext ( AESContext * ctx )
{
if ( !ctx ) {
CVerb ( "AESDisposeKeyContext: Invalid context supplied." );
return;
}
if ( ctx->lockAllocated ) {
LockDispose ( &ctx->encLock );
LockDispose ( &ctx->decLock );
ctx->lockAllocated = false;
}
CVerbArg ( "AESDisposeKeyContext: Disposing context for deviceID [ %u ].", ctx->deviceID );
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return;
env->CallStaticVoidMethod ( g_EnvironsClass, g_AESDisposeKeyContext, ctx->deviceID );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
memset ( ctx, 0, sizeof(AESContext) );
}
void dAESUpdateKeyContext ( AESContext * ctx, int deviceID )
{
CVerbArg ( "AESUpdateKeyContext: Update context to deviceID [ %u ].", deviceID );
if ( !ctx ) {
CVerb ( "AESUpdateKeyContext: Invalid context supplied." );
return;
}
CVerbArg ( "AESUpdateKeyContext: Temporary deviceID was [ %u ].", ctx->deviceID );
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return;
env->CallStaticVoidMethod ( g_EnvironsClass, g_AESUpdateKeyContext, ctx->deviceID, deviceID );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
}
bool AESTransform ( AESContext * ctx, bool encrypt, char * msg, unsigned int *msgLen, char ** result )
{
bool ret = false;
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return false;
jbyteArray jMsg = 0;
jbyteArray jIV = 0;
unsigned char * buffer = 0;
int deviceID = ctx->deviceID;
char IV [16];
/*
if ( pthread_mutex_lock ( &ctx->decMutex ) ) {
CErrID ( "AESTransform: Failed to acquire mutex." );
return false;
}
*/
do
{
jIV = env->NewByteArray ( 16 );
if ( !jIV ) {
CErrID ( "AESTransform: Alloc memory for jIV failed." ); break;
}
if ( encrypt ) {
BUILD_IV_128 ( IV );
env->SetByteArrayRegion ( jIV, 0, 16, (jbyte*)IV );
CVerbVerbArgID ( "AESTransform: Encrypt IV [ %s ]", ConvertToHexSpaceString ( IV, 16 ) );
jMsg = env->NewByteArray ( *msgLen );
if ( !jMsg ) {
CErrID ( "AESTransform: Alloc memory for jMsg failed." ); break;
}
env->SetByteArrayRegion ( jMsg, 0, *msgLen, (jbyte*)msg );
}
else {
if ( *msgLen < 36 ) {
CErrArgID ( "AESTransform: Decrypt requested, but msg is missing the IV [ %u ].", *msgLen ); break;
}
env->SetByteArrayRegion ( jIV, 0, 16, (jbyte*)(msg + 4) );
CVerbVerbArgID ( "AESTransform: Decrypt IV [ %s ]", ConvertToHexSpaceString ( msg + 4, 16 ) );
jMsg = env->NewByteArray ( *msgLen - 20 );
if ( !jMsg ) {
CErrID ( "AESTransform: Alloc memory for jMsg failed." ); break;
}
env->SetByteArrayRegion ( jMsg, 0, *msgLen - 20, (jbyte*)(msg + 20) );
}
jobject jBuffer = env->CallStaticObjectMethod ( g_EnvironsClass, g_AESTransform, deviceID, encrypt, jMsg, jIV );
if ( !jBuffer ) {
CErrID ( "AESTransform: Java call failed." ); break;
}
int capacity = env->GetDirectBufferCapacity ( jBuffer );
buffer = (unsigned char *) env->GetDirectBufferAddress ( jBuffer );
if ( !buffer || capacity <= 0 ) {
CErrID ( "AESTransform: Failed to get reference to memory of the shared buffer!" ); break;
}
unsigned bufSize = encrypt ? capacity + 24 : capacity + 6; // 21/5
char * blob = (char *) malloc ( bufSize );
if ( !blob ) {
CErrID ( "AESTransform: Failed to allocate memory." ); break;
}
if ( encrypt ) {
/// Copy IV
memcpy ( blob + 4, IV, 16 );
memcpy ( blob + 20, buffer, capacity );
capacity += 20;
blob [ capacity ] = 0;
*((unsigned int *) blob) = (0x40000000 | capacity);
*msgLen = capacity;
}
else {
memcpy ( blob, buffer, capacity );
blob [ capacity ] = 0;
*msgLen = capacity;
}
*result = blob;
ret = true;
CVerbArgID ( "AESTransform: %s buffer to size [ %i ] ", encrypt ? "Encrypted" : "Decrypted", capacity );
}
while ( 0 );
if ( jMsg ) env->DeleteLocalRef ( jMsg );
if ( jIV ) env->DeleteLocalRef ( jIV );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
/*
if ( pthread_mutex_unlock ( &ctx->decMutex ) ) {
CErrID ( "AESTransform: Failed to release mutex." );
ret = false;
}
*/
return ret;
}
bool dAESEncrypt ( AESContext * ctx, char * msg, unsigned int *msgLen, char ** cipher )
{
if ( !ctx || !msg || !msgLen || !cipher ) {
CErr ( "AESEncrypt: Called with at least one NULL argument." ); return false;
}
CVerbArg ( "AESEncrypt: Encrypting buffer sized [ %i ]", *msgLen );
return AESTransform ( ctx, true, msg, msgLen, cipher );
}
bool dAESDecrypt ( AESContext * ctx, char * msg, unsigned int *msgLen, char ** decrypted )
{
if ( !ctx || !msg || !msgLen || !decrypted ) {
CErr ( "AESDecrypt: Called with at least one NULL argument." ); return false;
}
return AESTransform ( ctx, false, msg, msgLen, decrypted );
}
namespace API
{
/*
* Method: WiFiUpdateWithColonMacN
*/
ENVIRONSAPI void EnvironsFunc ( WiFiUpdateWithColonMacN, jstring bssid, jstring ssid, jint rssi, jint channel, jint encrypt, jint updateState )
{
INIT_PCHAR ( szBssid, bssid );
INIT_PCHAR ( szSsid, ssid );
if ( updateState == 1 )
native.wifiObserver.Begin ();
if ( szBssid ) {
native.wifiObserver.UpdateWithColonMac ( szBssid, szSsid, rssi, 0, ( unsigned char ) channel, ( unsigned char ) encrypt );
}
CVerbVerbArg ( "WifiObserver: BSSID [ %s ]\t: SSID [ %s ]\t: rssi [ %i ]\t: channel [ %d ]\t: encrypt [ %c ]",
szBssid ? szBssid : "", szSsid ? szSsid : "", rssi, channel, encrypt );
if ( updateState == 0 )
native.wifiObserver.Finish ();
RELEASE_PCHAR ( szSsid, ssid );
RELEASE_PCHAR ( szBssid, bssid );
}
/*
* Method: BtUpdateWithColonMacN
*/
ENVIRONSAPI void EnvironsFunc ( BtUpdateWithColonMacN, jstring bssid, jstring ssid, jint rssi, jint cod, jlong uuid1, jlong uuid2, jint updateState )
{
INIT_PCHAR ( szBssid, bssid );
INIT_PCHAR ( szSsid, ssid );
if ( updateState == 1 )
native.btObserver.Begin ();
if ( szBssid ) {
native.btObserver.UpdateWithColonMac ( szBssid, szSsid, rssi, cod, uuid1, uuid2 );
}
CVerbVerbArg ( "BtObserver: BSSID [ %s ]\t: SSID [ %s ]\t: rssi [ %i ]",
szBssid ? szBssid : "", szSsid ? szSsid : "", rssi );
if ( updateState == 0 )
native.btObserver.Finish ();
RELEASE_PCHAR ( szSsid, ssid );
RELEASE_PCHAR ( szBssid, bssid );
}
void Environs_LoginDialog ( int hInst, const char * userName )
{
}
bool opt ( int hInst, const char * key, const char * value )
{
CVerbVerbArg ( "opt [ %i ]: Saving [ %s ] [ %s ]", hInst, key ? key : "NULL", value ? value : "NULL" );
if ( !key || !value || !*key || !*value ) {
CErrArg ( "opt: key [ %s ], value [ %s ]!", (key && *key) ? "valid" : "invalid", ( value && *value ) ? "valid" : "invalid" );
return false;
}
JNIEnv * env;
int rc = AttachJavaThread ( env );
if ( rc < 0 )
return false;
bool success = false;
jbyteArray jkey = 0;
jbyteArray jvalue = 0;
try {
do
{
size_t keyLength = strnlen ( key, MAX_NAMEPROPERTY * 10 );
if ( !keyLength )
break;
jkey = env->NewByteArray ( keyLength );
if ( !jkey )
break;
env->SetByteArrayRegion ( jkey, 0, keyLength, ( jbyte* ) key );
size_t valueLength = strlen ( value );
if ( !valueLength )
break;
jvalue = env->NewByteArray ( valueLength );
if ( !jvalue )
break;
env->SetByteArrayRegion ( jvalue, 0, valueLength, ( jbyte* ) value );
success = env->CallStaticBooleanMethod ( g_EnvironsClass, g_BridgeForOptSaveID, hInst, jkey, jvalue );
}
while ( false );
}
catch ( ... ) {
CErr ( "opt: Exception happened!" );
}
if ( jkey ) env->DeleteLocalRef ( jkey );
if ( jvalue ) env->DeleteLocalRef ( jvalue );
if ( rc )
g_JavaVM->DetachCurrentThread ( );
return success;
}
bool opt ( JNIEnv * jenv, int hInst, const char * key, jstring value )
{
CVerbVerb ( "opt" );
bool ret = false;
if ( !value ) {
CErr ( "opt: Invalid jstring value!" );
return false;
}
INIT_PCHAR ( szValue, value );
if ( szValue == NULL ) {
CErr ( "opt: Invalid value!" );
return false;
}
CVerbArg ( "opt [ %i ]: Saving [ %s ] [ %s ]", hInst, key ? key : "NULL", szValue ? szValue : "NULL" );
ret = opt ( hInst, key, szValue );
RELEASE_PCHAR ( szValue, value );
return ret;
}
const char * opt ( int hInst, const char * key )
{
CVerbVerbArg ( "opt [ %i ]: Loading [ %s ]", hInst, key ? key : "NULL" );
const char * value = optString ( hInst, key );
if ( value && *value )
return value;