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87 lines
2.9 KiB
87 lines
2.9 KiB
/*
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* Copyright (C) 2018 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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#ifndef ANDROID_APEXD_APEX_FILE_H_
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#define ANDROID_APEXD_APEX_FILE_H_
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#include <memory>
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#include <string>
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#include <vector>
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#include <android-base/result.h>
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#include <libavb/libavb.h>
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#include "apex_manifest.h"
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namespace android {
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namespace apex {
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// Data needed to construct a valid VerityTable
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struct ApexVerityData {
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std::unique_ptr<AvbHashtreeDescriptor> desc;
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std::string hash_algorithm;
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std::string salt;
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std::string root_digest;
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};
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// Manages the content of an APEX package and provides utilities to navigate
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// the content.
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class ApexFile {
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public:
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static android::base::Result<ApexFile> Open(const std::string& path);
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ApexFile() = delete;
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ApexFile(ApexFile&&) = default;
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ApexFile& operator=(ApexFile&&) = default;
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const std::string& GetPath() const { return apex_path_; }
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const std::optional<int32_t>& GetImageOffset() const { return image_offset_; }
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const std::optional<size_t>& GetImageSize() const { return image_size_; }
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const ::apex::proto::ApexManifest& GetManifest() const { return manifest_; }
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const std::string& GetBundledPublicKey() const { return apex_pubkey_; }
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const std::optional<std::string>& GetFsType() const { return fs_type_; }
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android::base::Result<ApexVerityData> VerifyApexVerity(
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const std::string& public_key) const;
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bool IsCompressed() const { return is_compressed_; }
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android::base::Result<void> Decompress(const std::string& output_path) const;
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private:
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ApexFile(const std::string& apex_path,
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const std::optional<int32_t>& image_offset,
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const std::optional<size_t>& image_size,
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::apex::proto::ApexManifest manifest, const std::string& apex_pubkey,
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const std::optional<std::string>& fs_type, bool is_compressed)
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: apex_path_(apex_path),
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image_offset_(image_offset),
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image_size_(image_size),
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manifest_(std::move(manifest)),
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apex_pubkey_(apex_pubkey),
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fs_type_(fs_type),
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is_compressed_(is_compressed) {}
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std::string apex_path_;
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std::optional<int32_t> image_offset_;
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std::optional<size_t> image_size_;
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::apex::proto::ApexManifest manifest_;
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std::string apex_pubkey_;
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std::optional<std::string> fs_type_;
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bool is_compressed_;
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};
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} // namespace apex
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} // namespace android
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#endif // ANDROID_APEXD_APEX_FILE_H_
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