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/*
* Copyright 2019 New Vector Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "olm_sas.h"
#include "olm/olm.h"
using namespace AndroidOlmSdk;
JNIEXPORT jlong OLM_SAS_FUNC_DEF(createNewSASJni)(JNIEnv *env, jobject thiz)
{
size_t sasSize = olm_sas_size();
OlmSAS *sasPtr = (OlmSAS *) malloc(sasSize);
const char* errorMessage = NULL;
if (!sasPtr)
{
LOGE("## createNewSASJni(): failure - init SAS OOM");
env->ThrowNew(env->FindClass("java/lang/Exception"), "init sas OOM");
}
else
{
sasPtr = olm_sas(sasPtr)
LOGD(" ## createNewSASJni(): success - sasPtr=%p (jlong)(intptr_t)accountPtr=%lld",sasPtr,(jlong)(intptr_t)sasPtr);
}
size_t randomSize = olm_create_sas_random_length(sasPtr);
uint8_t *randomBuffPtr = NULL;
LOGD("## createNewSASJni(): randomSize=%lu",static_cast<long unsigned int>(randomSize));
if ( (0 != randomSize) && !setRandomInBuffer(env, &randomBuffPtr, randomSize))
{
LOGE("## createNewSASJni(): failure - random buffer init");
errorMessage = "Failed to init private key";
}
else
{
size_t result = olm_create_sas(sasPtr, randomBuffPtr, randomSize);
if (result == olm_error())
{
errorMessage = (const char *)olm_sas_last_error(sasPtr);
LOGE("## createNewSASJni(): failure - error creating SAS Msg=%s", errorMessage);
}
}
if (randomBuffPtr)
{
memset(randomBuffPtr, 0, randomSize);
free(randomBuffPtr);
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return (jlong)(intptr_t)sasPtr;
}
JNIEXPORT void OLM_SAS_FUNC_DEF(releaseSASJni)(JNIEnv *env, jobject thiz)
{
LOGD("## releaseSASJni(): IN");
OlmSAS* sasPtr = getOlmSasInstanceId(env, thiz);
if (!sasPtr)
{
LOGE("## releaseSessionJni(): failure - invalid Session ptr=NULL");
}
else
{
olm_clear_sas(sasPtr);
// even if free(NULL) does not crash, logs are performed for debug purpose
free(sasPtr);
}
}
JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(getPubKeyJni)(JNIEnv *env, jobject thiz)
{
LOGD("## getPubKeyJni(): IN");
const char* errorMessage = NULL;
jbyteArray returnValue = 0;
OlmSAS* sasPtr = getOlmSasInstanceId(env, thiz);
if (!sasPtr)
{
LOGE("## getPubKeyJni(): failure - invalid SAS ptr=NULL");
errorMessage = "invalid SAS ptr=NULL";
}
else
{
size_t pubKeyLength = olm_sas_pubkey_length(sasPtr);
void *pubkey = malloc(pubKeyLength*sizeof(uint8_t));
size_t result = olm_sas_get_pubkey(sasPtr, pubkey, pubKeyLength);
if (result == olm_error())
{
errorMessage = (const char *)olm_sas_last_error(sasPtr);
LOGE("## getPubKeyJni(): failure - error getting pub key Msg=%s", errorMessage);
}
else
{
returnValue = env->NewByteArray(pubKeyLength);
env->SetByteArrayRegion(returnValue, 0 , pubKeyLength, (jbyte*)pubkey);
}
if (pubkey) {
free(pubkey);
}
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return returnValue;
}
JNIEXPORT void OLM_SAS_FUNC_DEF(setTheirPubKey)(JNIEnv *env, jobject thiz,jbyteArray pubKeyBuffer) {
OlmSAS* sasPtr = getOlmSasInstanceId(env, thiz);
const char* errorMessage = NULL;
jbyte *pubKeyPtr = NULL;
jboolean pubKeyWasCopied = JNI_FALSE;
if (!sasPtr)
{
LOGE("## setTheirPubKey(): failure - invalid SAS ptr=NULL");
errorMessage = "invalid SAS ptr=NULL";
} else if(!pubKeyBuffer) {
LOGE("## setTheirPubKey(): failure - invalid info");
errorMessage = "invalid pubKey";
}
else if (!(pubKeyPtr = env->GetByteArrayElements(pubKeyBuffer, &pubKeyWasCopied)))
{
LOGE(" ## generateShortCodeJni(): failure - info JNI allocation OOM");
errorMessage = "info JNI allocation OOM";
}
else
{
size_t pubKeyLength = (size_t)env->GetArrayLength(pubKeyBuffer);
size_t result = olm_sas_set_their_key(sasPtr,pubKeyPtr,pubKeyLength);
if (result == olm_error())
{
errorMessage = (const char *)olm_sas_last_error(sasPtr);
LOGE("## setTheirPubKey(): failure - error setting their key Msg=%s", errorMessage);
}
}
// free alloc
if (pubKeyPtr)
{
if (pubKeyWasCopied)
{
memset(pubKeyPtr, 0, (size_t)env->GetArrayLength(pubKeyBuffer));
}
env->ReleaseByteArrayElements(pubKeyBuffer, pubKeyPtr, JNI_ABORT);
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
}
JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(generateShortCodeJni)(JNIEnv *env, jobject thiz, jbyteArray infoStringBytes, jint byteNb) {
LOGD("## generateShortCodeJni(): IN");
const char* errorMessage = NULL;
jbyteArray returnValue = 0;
OlmSAS* sasPtr = getOlmSasInstanceId(env, thiz);
jbyte *infoPtr = NULL;
jboolean infoWasCopied = JNI_FALSE;
if (!sasPtr)
{
LOGE("## generateShortCodeJni(): failure - invalid SAS ptr=NULL");
errorMessage = "invalid SAS ptr=NULL";
} else if(!infoStringBytes) {
LOGE("## generateShortCodeJni(): failure - invalid info");
errorMessage = "invalid info";
}
else if (!(infoPtr = env->GetByteArrayElements(infoStringBytes, &infoWasCopied)))
{
LOGE(" ## generateShortCodeJni(): failure - info JNI allocation OOM");
errorMessage = "info JNI allocation OOM";
}
else {
size_t shortBytesCodeLength = (size_t) byteNb;
void *shortBytesCode = malloc(shortBytesCodeLength * sizeof(uint8_t));
size_t infoLength = (size_t)env->GetArrayLength(infoStringBytes);
olm_sas_generate_bytes(sasPtr, infoPtr, infoLength, shortBytesCode, shortBytesCodeLength);
returnValue = env->NewByteArray(shortBytesCodeLength);
env->SetByteArrayRegion(returnValue, 0 , shortBytesCodeLength, (jbyte*)shortBytesCode);
free(shortBytesCode);
}
// free alloc
if (infoPtr)
{
if (infoWasCopied)
{
memset(infoPtr, 0, (size_t)env->GetArrayLength(infoStringBytes));
}
env->ReleaseByteArrayElements(infoStringBytes, infoPtr, JNI_ABORT);
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return returnValue;
}
JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacJni)(JNIEnv *env, jobject thiz,jbyteArray messageBuffer,jbyteArray infoBuffer) {
LOGD("## calculateMacJni(): IN");
const char* errorMessage = NULL;
jbyteArray returnValue = 0;
OlmSAS* sasPtr = getOlmSasInstanceId(env, thiz);
jbyte *messagePtr = NULL;
jboolean messageWasCopied = JNI_FALSE;
jbyte *infoPtr = NULL;
jboolean infoWasCopied = JNI_FALSE;
if (!sasPtr)
{
LOGE("## calculateMacJni(): failure - invalid SAS ptr=NULL");
errorMessage = "invalid SAS ptr=NULL";
} else if(!messageBuffer) {
LOGE("## calculateMacJni(): failure - invalid message");
errorMessage = "invalid info";
}
else if (!(messagePtr = env->GetByteArrayElements(messageBuffer, &messageWasCopied)))
{
LOGE(" ## calculateMacJni(): failure - message JNI allocation OOM");
errorMessage = "message JNI allocation OOM";
}
else if (!(infoPtr = env->GetByteArrayElements(infoBuffer, &infoWasCopied)))
{
LOGE(" ## calculateMacJni(): failure - info JNI allocation OOM");
errorMessage = "info JNI allocation OOM";
} else {
size_t infoLength = (size_t)env->GetArrayLength(infoBuffer);
size_t messageLength = (size_t)env->GetArrayLength(messageBuffer);
size_t macLength = olm_sas_mac_length(sasPtr);
void *macPtr = malloc(macLength*sizeof(uint8_t));
size_t result = olm_sas_calculate_mac(sasPtr,messagePtr,messageLength,infoPtr,infoLength,macPtr,macLength);
if (result == olm_error())
{
errorMessage = (const char *)olm_sas_last_error(sasPtr);
LOGE("## calculateMacJni(): failure - error calculating SAS mac Msg=%s", errorMessage);
}
else
{
returnValue = env->NewByteArray(macLength);
env->SetByteArrayRegion(returnValue, 0 , macLength, (jbyte*)macPtr);
}
if (macPtr) {
free(macPtr);
}
}
// free alloc
if (infoPtr)
{
if (infoWasCopied)
{
memset(infoPtr, 0, (size_t)env->GetArrayLength(infoBuffer));
}
env->ReleaseByteArrayElements(infoBuffer, infoPtr, JNI_ABORT);
}
if (messagePtr)
{
if (messageWasCopied)
{
memset(messagePtr, 0, (size_t)env->GetArrayLength(messageBuffer));
}
env->ReleaseByteArrayElements(messageBuffer, messagePtr, JNI_ABORT);
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return returnValue;
}
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