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Diffstat (limited to 'src/gpt.h')
| -rw-r--r-- | src/gpt.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/gpt.h b/src/gpt.h new file mode 100644 index 0000000..79b5b8c --- /dev/null +++ b/src/gpt.h @@ -0,0 +1,75 @@ +/* + * 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 |