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/*
* Copyright (C) 2020 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.
*/
#pragma once
#include "adb_unique_fd.h"
#include <string>
#include <string_view>
#include <utility>
#include <vector>
#include <stdint.h>
#include <android-base/off64_t.h>
namespace incremental {
using Size = int64_t;
constexpr int kBlockSize = 4096;
constexpr int kSha256DigestSize = 32;
constexpr int kDigestSize = kSha256DigestSize;
constexpr int kMaxSignatureSize = 8096; // incrementalfs.h
constexpr std::string_view IDSIG = ".idsig";
std::vector<int32_t> PriorityBlocksForFile(const std::string& filepath, borrowed_fd fd,
Size fileSize);
Size verity_tree_blocks_for_file(Size fileSize);
Size verity_tree_size_for_file(Size fileSize);
std::pair<std::vector<char>, int32_t> read_id_sig_headers(borrowed_fd fd);
std::pair<off64_t, ssize_t> skip_id_sig_headers(borrowed_fd fd);
} // namespace incremental
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