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/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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.
*/
#define LOG_TAG "LowpanCredential"
#include <android/net/lowpan/LowpanCredential.h>
#include <binder/Parcel.h>
#include <log/log.h>
#include <utils/Errors.h>
using android::BAD_TYPE;
using android::BAD_VALUE;
using android::NO_ERROR;
using android::Parcel;
using android::status_t;
using android::UNEXPECTED_NULL;
using android::net::lowpan::LowpanCredential;
using namespace ::android::binder;
namespace android {
namespace net {
namespace lowpan {
#define RETURN_IF_FAILED(calledOnce) \
{ \
status_t returnStatus = calledOnce; \
if (returnStatus) { \
ALOGE("Failed at %s:%d (%s)", __FILE__, __LINE__, __func__); \
return returnStatus; \
} \
}
LowpanCredential::LowpanCredential() : mMasterKeyIndex(UNSPECIFIED_MASTER_KEY_INDEX) { }
status_t LowpanCredential::initMasterKey(LowpanCredential& out, const uint8_t* masterKeyBytes, int masterKeyLen, int masterKeyIndex)
{
if (masterKeyLen < 0) {
return BAD_INDEX;
} else if (masterKeyLen > MASTER_KEY_MAX_SIZE) {
return BAD_INDEX;
} else if (masterKeyBytes == NULL) {
return BAD_VALUE;
}
out.mMasterKey.clear();
out.mMasterKey.insert(out.mMasterKey.end(), masterKeyBytes, masterKeyBytes + masterKeyLen);
out.mMasterKeyIndex = masterKeyIndex;
return NO_ERROR;
}
status_t LowpanCredential::initMasterKey(LowpanCredential& out, const uint8_t* masterKeyBytes, int masterKeyLen)
{
return LowpanCredential::initMasterKey(out, masterKeyBytes, masterKeyLen, 0);
}
status_t LowpanCredential::initMasterKey(LowpanCredential& out, const std::vector<uint8_t>& masterKey, int masterKeyIndex)
{
return LowpanCredential::initMasterKey(out, &masterKey.front(), masterKey.size(), masterKeyIndex);
}
status_t LowpanCredential::initMasterKey(LowpanCredential& out, const std::vector<uint8_t>& masterKey)
{
return LowpanCredential::initMasterKey(out, masterKey, 0);
}
bool LowpanCredential::isMasterKey() const {
return mMasterKey.size() > 0;
}
bool LowpanCredential::getMasterKey(std::vector<uint8_t>* masterKey) const {
if (isMasterKey()) {
*masterKey = mMasterKey;
return true;
}
return false;
}
bool LowpanCredential::getMasterKey(const uint8_t** masterKey, int* masterKeyLen) const {
if (isMasterKey()) {
if (masterKey) {
*masterKey = &mMasterKey.front();
}
if (masterKeyLen) {
*masterKeyLen = mMasterKey.size();
}
return true;
}
return false;
}
int LowpanCredential::getMasterKeyIndex() const {
return mMasterKeyIndex;
}
status_t LowpanCredential::writeToParcel(Parcel* parcel) const {
/*
* Keep implementation in sync with writeToParcel() in
* frameworks/base/lowpan/java/android/net/android/net/lowpan/LowpanCredential.java.
*/
RETURN_IF_FAILED(parcel->writeByteVector(mMasterKey));
RETURN_IF_FAILED(parcel->writeInt32(mMasterKeyIndex));
return NO_ERROR;
}
status_t LowpanCredential::readFromParcel(const Parcel* parcel) {
/*
* Keep implementation in sync with readFromParcel() in
* frameworks/base/lowpan/java/android/net/android/net/lowpan/LowpanCredential.java.
*/
RETURN_IF_FAILED(parcel->readByteVector(&mMasterKey));
RETURN_IF_FAILED(parcel->readInt32(&mMasterKeyIndex));
return NO_ERROR;
}
bool LowpanCredential::operator==(const LowpanCredential& rhs)
{
if (mMasterKey != rhs.mMasterKey) {
return false;
}
if (mMasterKeyIndex != rhs.mMasterKeyIndex) {
return false;
}
return true;
}
} // namespace lowpan
} // namespace net
} // namespace android
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