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This commit is contained in:
ylecollen 2017-01-02 16:02:17 +01:00
parent 8f3d5bed72
commit 47a52dcf41
1 changed files with 127 additions and 154 deletions
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281
java/android/OlmLibSdk/olm-sdk/src/main/jni/olm_jni_helper.cpp
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@ -29,99 +29,80 @@ using namespace AndroidOlmSdk;
**/
bool setRandomInBuffer(JNIEnv *env, uint8_t **aBuffer2Ptr, size_t aRandomSize)
{
bool retCode = false;
int bufferLen = aRandomSize*sizeof(uint8_t);
bool retCode = false;
int bufferLen = aRandomSize*sizeof(uint8_t);
if(NULL == aBuffer2Ptr)
{
LOGE("## setRandomInBuffer(): failure - aBuffer=NULL");
}
else if(0 == aRandomSize)
{
LOGE("## setRandomInBuffer(): failure - random size=0");
}
else if(NULL == (*aBuffer2Ptr = (uint8_t*)malloc(bufferLen)))
{
LOGE("## setRandomInBuffer(): failure - alloc mem OOM");
}
else
{
LOGD("## setRandomInBuffer(): randomSize=%lu",static_cast<long unsigned int>(aRandomSize));
bool secureRandomSucceeds = false;
// use the secureRandom class
jclass cls = env->FindClass("java/security/SecureRandom");
if (cls)
if (!aBuffer2Ptr)
{
jobject newObj = 0;
jmethodID constructor = env->GetMethodID(cls, "<init>", "()V");
jmethodID nextByteMethod = env->GetMethodID(cls, "nextBytes", "([B)V");
LOGE("## setRandomInBuffer(): failure - aBuffer=NULL");
}
else if(!aRandomSize)
{
LOGE("## setRandomInBuffer(): failure - random size=0");
}
else if (!(*aBuffer2Ptr = (uint8_t*)malloc(bufferLen)))
{
LOGE("## setRandomInBuffer(): failure - alloc mem OOM");
}
else
{
LOGD("## setRandomInBuffer(): randomSize=%lu",static_cast<long unsigned int>(aRandomSize));
if (constructor)
{
newObj = env->NewObject(cls, constructor);
jbyteArray tempByteArray = env->NewByteArray(bufferLen);
// use the secureRandom class
jclass cls = env->FindClass("java/security/SecureRandom");
if (newObj && tempByteArray)
if (cls)
{
env->CallVoidMethod(newObj, nextByteMethod, tempByteArray);
jobject newObj = 0;
jmethodID constructor = env->GetMethodID(cls, "<init>", "()V");
jmethodID nextByteMethod = env->GetMethodID(cls, "nextBytes", "([B)V");
jbyte* buffer = env->GetByteArrayElements(tempByteArray, NULL);
if (constructor)
{
newObj = env->NewObject(cls, constructor);
jbyteArray tempByteArray = env->NewByteArray(bufferLen);
if (buffer)
{
memcpy(*aBuffer2Ptr, buffer, bufferLen);
secureRandomSucceeds = true;
if (newObj && tempByteArray)
{
env->CallVoidMethod(newObj, nextByteMethod, tempByteArray);
jbyte* buffer = env->GetByteArrayElements(tempByteArray, NULL);
// clear tempByteArray to hide sensitive data.
memset(buffer, 0, bufferLen);
env->SetByteArrayRegion(tempByteArray, 0, bufferLen, buffer);
if (buffer)
{
memcpy(*aBuffer2Ptr, buffer, bufferLen);
retCode = true;
// ensure that the buffer is released
env->ReleaseByteArrayElements(tempByteArray, buffer, JNI_ABORT);
}
// clear tempByteArray to hide sensitive data.
memset(buffer, 0, bufferLen);
env->SetByteArrayRegion(tempByteArray, 0, bufferLen, buffer);
// ensure that the buffer is released
env->ReleaseByteArrayElements(tempByteArray, buffer, JNI_ABORT);
}
}
if (tempByteArray)
{
env->DeleteLocalRef(tempByteArray);
}
if (newObj)
{
env->DeleteLocalRef(newObj);
}
}
}
if (tempByteArray)
// debug purpose
/*for(int i = 0; i < aRandomSize; i++)
{
env->DeleteLocalRef(tempByteArray);
}
if (newObj)
{
env->DeleteLocalRef(newObj);
}
}
LOGD("## setRandomInBuffer(): randomBuffPtr[%ld]=%d",i, (*aBuffer2Ptr)[i]);
}*/
}
if (!secureRandomSucceeds)
{
LOGE("## setRandomInBuffer(): SecureRandom failed, use a fallback");
struct timeval timeValue;
gettimeofday(&timeValue, NULL);
srand(timeValue.tv_usec); // init seed
for(size_t i=0;i<aRandomSize;i++)
{
(*aBuffer2Ptr)[i] = (uint8_t)(rand()%ACCOUNT_CREATION_RANDOM_MODULO);
}
}
// debug purpose
/*for(int i = 0; i < aRandomSize; i++)
{
LOGD("## setRandomInBuffer(): randomBuffPtr[%ld]=%d",i, (*aBuffer2Ptr)[i]);
}*/
retCode = true;
}
return retCode;
return retCode;
}
/**
* Read the instance ID of the calling object.
* @param aJniEnv pointer pointing on the JNI function table
@ -131,49 +112,45 @@ bool setRandomInBuffer(JNIEnv *env, uint8_t **aBuffer2Ptr, size_t aRandomSize)
**/
jlong getInstanceId(JNIEnv* aJniEnv, jobject aJavaObject, const char *aCallingClass)
{
jlong instanceId = 0;
jfieldID instanceIdField = 0;
jclass loaderClass = 0;
jclass requiredClass = 0;
if(NULL!=aJniEnv)
{
requiredClass = aJniEnv->FindClass(aCallingClass);
if((0 != requiredClass) && (JNI_TRUE != aJniEnv->IsInstanceOf(aJavaObject, requiredClass)))
jlong instanceId = 0;
if (aJniEnv)
{
LOGE("## getAccountInstanceId() failure - invalid instance of");
}
else if(0 != (loaderClass=aJniEnv->GetObjectClass(aJavaObject)))
{
if(0 != (instanceIdField=aJniEnv->GetFieldID(loaderClass, "mNativeId", "J")))
{
instanceId = aJniEnv->GetLongField(aJavaObject, instanceIdField);
LOGD("## getInstanceId(): read from java instanceId=%lld",instanceId);
}
else
{
LOGE("## getInstanceId() ERROR! GetFieldID=null");
}
jclass requiredClass = aJniEnv->FindClass(aCallingClass);
jclass loaderClass = 0;
if (requiredClass && (JNI_TRUE != aJniEnv->IsInstanceOf(aJavaObject, requiredClass)))
{
LOGE("## getAccountInstanceId() failure - invalid instance of");
}
else if (loaderClass = aJniEnv->GetObjectClass(aJavaObject))
{
jfieldID instanceIdField = aJniEnv->GetFieldID(loaderClass, "mNativeId", "J");
if (instanceIdField)
{
instanceId = aJniEnv->GetLongField(aJavaObject, instanceIdField);
LOGD("## getInstanceId(): read from java instanceId=%lld",instanceId);
}
else
{
LOGE("## getInstanceId() ERROR! GetFieldID=null");
}
aJniEnv->DeleteLocalRef(loaderClass);
}
else
{
LOGE("## getInstanceId() ERROR! GetObjectClass=null");
}
}
else
{
LOGE("## getInstanceId() ERROR! GetObjectClass=null");
LOGE("## getInstanceId() ERROR! aJniEnv=NULL");
}
}
else
{
LOGE("## getInstanceId() ERROR! aJniEnv=NULL");
}
LOGD("## getInstanceId() success - instanceId=%p (jlong)(intptr_t)instanceId=%lld",(void*)instanceId, (jlong)(intptr_t)instanceId);
LOGD("## getInstanceId() success - instanceId=%p (jlong)(intptr_t)instanceId=%lld",(void*)instanceId, (jlong)(intptr_t)instanceId);
if (loaderClass)
{
aJniEnv->DeleteLocalRef(loaderClass);
}
return instanceId;
return instanceId;
}
/**
@ -184,12 +161,10 @@ jlong getInstanceId(JNIEnv* aJniEnv, jobject aJavaObject, const char *aCallingCl
**/
jlong getAccountInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
{
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_ACCOUNT);
return instanceId;
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_ACCOUNT);
return instanceId;
}
/**
* Read the session instance ID of the calling object (aJavaObject).<br>
* @param aJniEnv pointer pointing on the JNI function table
@ -198,8 +173,8 @@ jlong getAccountInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
**/
jlong getSessionInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
{
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_SESSION);
return instanceId;
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_SESSION);
return instanceId;
}
/**
@ -210,11 +185,10 @@ jlong getSessionInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
**/
jlong getInboundGroupSessionInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
{
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_INBOUND_GROUP_SESSION);
return instanceId;
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_INBOUND_GROUP_SESSION);
return instanceId;
}
/**
* Read the outbound group session instance ID of the calling object (aJavaObject).<br>
* @param aJniEnv pointer pointing on the JNI function table
@ -223,8 +197,8 @@ jlong getInboundGroupSessionInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
**/
jlong getOutboundGroupSessionInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
{
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_OUTBOUND_GROUP_SESSION);
return instanceId;
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_OUTBOUND_GROUP_SESSION);
return instanceId;
}
/**
@ -235,11 +209,10 @@ jlong getOutboundGroupSessionInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
**/
jlong getUtilityInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
{
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_UTILITY);
return instanceId;
jlong instanceId = getInstanceId(aJniEnv, aJavaObject, CLASS_OLM_UTILITY);
return instanceId;
}
/**
* Convert a C string into a UTF-8 format string.
* The conversion is performed in JAVA side to workaround the issue in NewStringUTF().
@ -247,37 +220,37 @@ jlong getUtilityInstanceId(JNIEnv* aJniEnv, jobject aJavaObject)
*/
jstring javaCStringToUtf8(JNIEnv *env, uint8_t *aCStringMsgPtr, size_t aMsgLength)
{
jstring convertedRetValue = 0;
jbyteArray tempByteArray = NULL;
jstring convertedRetValue = 0;
jbyteArray tempByteArray = NULL;
if((NULL == aCStringMsgPtr) || (NULL == env))
{
LOGE("## javaCStringToUtf8(): failure - invalid parameters (null)");
}
else if(NULL == (tempByteArray=env->NewByteArray(aMsgLength)))
{
LOGE("## javaCStringToUtf8(): failure - return byte array OOM");
}
else
{
env->SetByteArrayRegion(tempByteArray, 0, aMsgLength, (const jbyte*)aCStringMsgPtr);
// UTF-8 conversion from JAVA
jstring strEncode = (env)->NewStringUTF("UTF-8");
jclass jClass = env->FindClass("java/lang/String");
jmethodID cstor = env->GetMethodID(jClass, "<init>", "([BLjava/lang/String;)V");
if((0!=jClass) && (0!=jClass) && (0!=strEncode))
if (!aCStringMsgPtr || !env)
{
convertedRetValue = (jstring) env->NewObject(jClass, cstor, tempByteArray, strEncode);
LOGD(" ## javaCStringToUtf8(): succeed");
env->DeleteLocalRef(tempByteArray);
LOGE("## javaCStringToUtf8(): failure - invalid parameters (null)");
}
else if (!(tempByteArray=env->NewByteArray(aMsgLength)))
{
LOGE("## javaCStringToUtf8(): failure - return byte array OOM");
}
else
{
LOGE(" ## javaCStringToUtf8(): failure - invalid Java references");
}
}
env->SetByteArrayRegion(tempByteArray, 0, aMsgLength, (const jbyte*)aCStringMsgPtr);
return convertedRetValue;
// UTF-8 conversion from JAVA
jstring strEncode = (env)->NewStringUTF("UTF-8");
jclass jClass = env->FindClass("java/lang/String");
jmethodID cstor = env->GetMethodID(jClass, "<init>", "([BLjava/lang/String;)V");
if (jClass && strEncode)
{
convertedRetValue = (jstring) env->NewObject(jClass, cstor, tempByteArray, strEncode);
LOGD(" ## javaCStringToUtf8(): succeed");
env->DeleteLocalRef(tempByteArray);
}
else
{
LOGE(" ## javaCStringToUtf8(): failure - invalid Java references");
}
}
return convertedRetValue;
}