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/*
* Copyright (C) 2016 Paul Kocialkowski <contact@paulk.fr>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _GPT_H_
#define _GPT_H_
/*
* Values
*/
#define GPT_BLOCK_SIZE 512
#define GPT_HEADER_LBA 1
#define GPT_VERSION 0x00010000
#define GPT_CRC_SEED 0xffffffff
#define GPT_PARTITION_NAME_COUNT 36
#define GPT_SIGNATURE "EFI PART"
/*
* Structures
*/
struct gpt_header {
char signature[8];
unsigned int version;
unsigned int size;
unsigned int crc;
unsigned int reserved;
unsigned long long current_lba;
unsigned long long backup_lba;
unsigned long long first_lba;
unsigned long long last_lba;
unsigned char guid[16];
unsigned long long partitions_lba;
unsigned int partitions_count;
unsigned int partitions_size;
unsigned int partitions_crc;
} __attribute__((__packed__));
struct gpt_partition {
unsigned char type_guid[16];
unsigned char guid[16];
unsigned long long first_lba;
unsigned long long last_lba;
unsigned long long flags;
short name[GPT_PARTITION_NAME_COUNT];
} __attribute__((__packed__));
/*
* Functions
*/
int gpt_header_verify(struct gpt_header *header);
int gpt_header_read(struct context *context, struct gpt_header *header);
int gpt_partition_find(struct context *context);
int gpt_partitions_print(struct context *context);
#endif
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