c1d1feee51
This CL isn't nearly as big as it looks. It doesn't change keystore
functionality, it just moves all of the classes out of the former
keystore.cpp into their own .h and .cpp files.
Note that this is a cherry-pick from:
https://android-review.googlesource.com/#/c/194971
Change-Id: Ide326c4f1d03984994d1bd9a76fa68d37da230dc
49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
/*
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* Copyright (C) 2016 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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#define LOG_TAG "keystore"
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#include "entropy.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <cutils/log.h>
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#include "keystore_utils.h"
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Entropy::~Entropy() {
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if (mRandom >= 0) {
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close(mRandom);
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}
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}
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bool Entropy::open() {
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const char* randomDevice = "/dev/urandom";
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mRandom = TEMP_FAILURE_RETRY(::open(randomDevice, O_RDONLY));
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if (mRandom < 0) {
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ALOGE("open: %s: %s", randomDevice, strerror(errno));
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return false;
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}
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return true;
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}
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bool Entropy::generate_random_data(uint8_t* data, size_t size) const {
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return (readFully(mRandom, data, size) == size);
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}
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