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/*
* Copyright (C) 2018 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.
*/
#ifndef ANDROID_APEXD_APEX_FILE_H_
#define ANDROID_APEXD_APEX_FILE_H_
#include <memory>
#include <string>
#include <vector>
#include <android-base/result.h>
#include <libavb/libavb.h>
#include <ziparchive/zip_archive.h>
#include "apex_constants.h"
#include "apex_manifest.h"
namespace android {
namespace apex {
// Data needed to construct a valid VerityTable
struct ApexVerityData {
std::unique_ptr<AvbHashtreeDescriptor> desc;
std::string hash_algorithm;
std::string salt;
std::string root_digest;
};
// Manages the content of an APEX package and provides utilities to navigate
// the content.
class ApexFile {
public:
static android::base::Result<ApexFile> Open(const std::string& path);
ApexFile() = delete;
ApexFile(ApexFile&&) = default;
const std::string& GetPath() const { return apex_path_; }
int32_t GetImageOffset() const { return image_offset_; }
size_t GetImageSize() const { return image_size_; }
const ApexManifest& GetManifest() const { return manifest_; }
const std::string& GetBundledPublicKey() const { return apex_pubkey_; }
bool IsBuiltin() const { return is_builtin_; }
android::base::Result<ApexVerityData> VerifyApexVerity() const;
android::base::Result<void> VerifyManifestMatches(
const std::string& mount_path) const;
private:
ApexFile(const std::string& apex_path, int32_t image_offset,
size_t image_size, ApexManifest manifest,
const std::string& apex_pubkey, bool is_builtin)
: apex_path_(apex_path),
image_offset_(image_offset),
image_size_(image_size),
manifest_(std::move(manifest)),
apex_pubkey_(apex_pubkey),
is_builtin_(is_builtin) {}
std::string apex_path_;
int32_t image_offset_;
size_t image_size_;
ApexManifest manifest_;
std::string apex_pubkey_;
bool is_builtin_;
};
android::base::Result<std::vector<std::string>> FindApexes(
const std::vector<std::string>& paths);
android::base::Result<std::vector<std::string>> FindApexFilesByName(
const std::string& path);
bool isPathForBuiltinApexes(const std::string& path);
} // namespace apex
} // namespace android
#endif // ANDROID_APEXD_APEX_FILE_H_