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/*
* Copyright (C) 2019 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 <map>
#include <string>
#include <vector>
namespace android {
namespace hardware {
namespace boot {
namespace V1_2 {
namespace implementation {
#define GPT_SIGNATURE 0x5452415020494645UL
typedef struct {
uint8_t type_guid[16];
uint8_t guid[16];
uint64_t first_lba;
uint64_t last_lba;
uint64_t attr;
uint16_t name[36];
} __attribute__((packed)) gpt_entry;
typedef struct {
uint64_t signature;
uint32_t revision;
uint32_t header_size;
uint32_t crc32;
uint32_t reserved;
uint64_t current_lba;
uint64_t backup_lba;
uint64_t first_usable_lba;
uint64_t last_usable_lba;
uint8_t disk_guid[16];
uint64_t start_lba;
uint32_t entry_count;
uint32_t entry_size;
uint32_t entries_crc32;
} __attribute__((packed)) gpt_header;
class GptUtils {
public:
GptUtils(const std::string dev_path);
int Load(void);
gpt_entry *GetPartitionEntry(std::string name);
int Sync(void);
~GptUtils();
private:
std::string dev_path;
int fd;
uint32_t block_size;
gpt_header gpt_primary;
gpt_header gpt_backup;
std::vector<gpt_entry> entry_array;
std::map<std::string, gpt_entry *> entries;
};
} // namespace implementation
} // namespace V1_2
} // namespace boot
} // namespace hardware
} // namespace android
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