79 lines
2 KiB
C
79 lines
2 KiB
C
/*
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* mdadm - manage Linux "md" devices aka RAID arrays.
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*
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* Copyright (C) 2010 Neil Brown <neilb@suse.de>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Neil Brown
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* Email: <neil@brown.name>
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*
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*/
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/* Structure definitions ext for MBR and GPT partition tables
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*/
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#define MBR_SIGNATURE_MAGIC __cpu_to_le16(0xAA55)
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#define MBR_PARTITIONS 4
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struct MBR_part_record {
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__u8 bootable;
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__u8 first_head;
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__u8 first_sector;
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__u8 first_cyl;
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__u8 part_type;
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__u8 last_head;
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__u8 last_sector;
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__u8 last_cyl;
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__u32 first_sect_lba;
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__u32 blocks_num;
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} __attribute__((packed));
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struct MBR {
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__u8 pad[446];
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struct MBR_part_record parts[MBR_PARTITIONS];
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__u16 magic;
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} __attribute__((packed));
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#define GPT_SIGNATURE_MAGIC __cpu_to_le64(0x5452415020494645ULL)
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#define MBR_GPT_PARTITION_TYPE 0xEE
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struct GPT_part_entry {
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unsigned char type_guid[16];
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unsigned char partition_guid[16];
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__u64 starting_lba;
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__u64 ending_lba;
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unsigned char attr_bits[8];
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unsigned char name[72];
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} __attribute__((packed));
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struct GPT {
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__u64 magic;
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__u32 revision;
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__u32 header_size;
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__u32 crc;
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__u32 pad1;
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__u64 current_lba;
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__u64 backup_lba;
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__u64 first_lba;
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__u64 last_lba;
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__u8 guid[16];
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__u64 part_start;
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__u32 part_cnt;
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__u32 part_size;
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__u32 part_crc;
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__u8 pad2[420];
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} __attribute__((packed));
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