229528a08f
In native world, byte stream is typically represented in uint8_t[]
or vector<uint8_t>. C++ backend already generates that way. This
change involves NDK backend.
Now NDK backend also uses vector<uint8_t> just like C++ backend.
Bug: 144957764
Test: atest CtsNdkBinderTestCases
Merged-In: I8de348b57cf92dd99b3ee16252f56300ce5f4683
Change-Id: I8de348b57cf92dd99b3ee16252f56300ce5f4683
(cherry picked from commit 9070318462)
Exempt-From-Owner-Approval: cp from master to avoid merge-conflict
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/unique_fd.h>
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#include "HadamardUtils.h"
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#include "rebootescrow-impl/RebootEscrow.h"
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namespace aidl {
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namespace android {
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namespace hardware {
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namespace rebootescrow {
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using ::android::base::unique_fd;
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ndk::ScopedAStatus RebootEscrow::storeKey(const std::vector<uint8_t>& ukek) {
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int rawFd = TEMP_FAILURE_RETRY(::open(devicePath_.c_str(), O_WRONLY | O_NOFOLLOW | O_CLOEXEC));
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unique_fd fd(rawFd);
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if (fd.get() < 0) {
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LOG(WARNING) << "Could not open reboot escrow device";
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return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_UNSUPPORTED_OPERATION));
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}
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auto encoded = hadamard::EncodeKey(ukek);
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if (!::android::base::WriteFully(fd, encoded.data(), encoded.size())) {
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LOG(WARNING) << "Could not write data fully to character device";
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return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_UNSUPPORTED_OPERATION));
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}
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return ndk::ScopedAStatus::ok();
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}
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ndk::ScopedAStatus RebootEscrow::retrieveKey(std::vector<uint8_t>* _aidl_return) {
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int rawFd = TEMP_FAILURE_RETRY(::open(devicePath_.c_str(), O_RDONLY | O_NOFOLLOW | O_CLOEXEC));
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unique_fd fd(rawFd);
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if (fd.get() < 0) {
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LOG(WARNING) << "Could not open reboot escrow device";
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return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_UNSUPPORTED_OPERATION));
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}
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std::vector<uint8_t> encodedBytes(hadamard::OUTPUT_SIZE_BYTES);
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if (!::android::base::ReadFully(fd, &encodedBytes[0], encodedBytes.size())) {
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LOG(WARNING) << "Could not read device";
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return ndk::ScopedAStatus(AStatus_fromExceptionCode(EX_UNSUPPORTED_OPERATION));
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}
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auto keyBytes = hadamard::DecodeKey(encodedBytes);
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*_aidl_return = keyBytes;
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return ndk::ScopedAStatus::ok();
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}
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} // namespace rebootescrow
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} // namespace hardware
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} // namespace android
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} // namespace aidl
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