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