projects / thirdparty / mdadm.git / blame
| Commit | Line | Data |
|---|---|---|
| 0f22b998 N |
1 | /* |
| 2 | * mdadm - manage Linux "md" devices aka RAID arrays. | |
| 3 | * | |
| 4 | * Copyright (C) 2010 Neil Brown <neilb@suse.de> | |
| 5 | * | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License as published by | |
| 9 | * the Free Software Foundation; either version 2 of the License, or | |
| 10 | * (at your option) any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 20 | * | |
| 21 | * Author: Neil Brown | |
| 22 | * Email: <neil@brown.name> | |
| 23 | * | |
| 24 | */ | |
| 25 | ||
| 26 | /* Structure definitions ext for MBR and GPT partition tables | |
| 27 | */ | |
| 28 | ||
| 29 | ||
| 30 | #define MBR_SIGNATURE_MAGIC __cpu_to_le16(0xAA55) | |
| 31 | #define MBR_PARTITIONS 4 | |
| 32 | ||
| 33 | struct MBR_part_record { | |
| 34 | __u8 bootable; | |
| 35 | __u8 first_head; | |
| 36 | __u8 first_sector; | |
| 37 | __u8 first_cyl; | |
| 38 | __u8 part_type; | |
| 39 | __u8 last_head; | |
| 40 | __u8 last_sector; | |
| 41 | __u8 last_cyl; | |
| 42 | __u32 first_sect_lba; | |
| 43 | __u32 blocks_num; | |
| 44 | }; | |
| 45 | ||
| 46 | struct MBR { | |
| 47 | __u8 pad[446]; | |
| 48 | struct MBR_part_record parts[MBR_PARTITIONS]; | |
| 49 | __u16 magic; | |
| 50 | } __attribute__((packed)); | |
| 51 | ||
| 52 | ||
| 53 | ||
| 54 | #define GPT_SIGNATURE_MAGIC __cpu_to_le64(0x5452415020494645ULL) | |
| 55 | #define MBR_GPT_PARTITION_TYPE 0xEE | |
| 56 | ||
| 57 | struct GPT_part_entry { | |
| 58 | unsigned char type_guid[16]; | |
| 59 | unsigned char partition_guid[16]; | |
| 60 | __u64 starting_lba; | |
| 61 | __u64 ending_lba; | |
| 62 | unsigned char attr_bits[8]; | |
| 63 | unsigned char name[72]; | |
| 64 | } __attribute__((packed)); | |
| 65 | ||
| 66 | struct GPT { | |
| 67 | __u64 magic; | |
| 68 | __u32 revision; | |
| 69 | __u32 header_size; | |
| 70 | __u32 crc; | |
| 71 | __u32 pad1; | |
| 72 | __u64 current_lba; | |
| 73 | __u64 backup_lba; | |
| 74 | __u64 first_lba; | |
| 75 | __u64 last_lba; | |
| 76 | __u8 guid[16]; | |
| 77 | __u64 part_start; | |
| 78 | __u32 part_cnt; | |
| 79 | __u32 part_size; | |
| 80 | __u32 part_crc; | |
| 81 | __u8 pad2[420]; | |
| 82 | } __attribute__((packed)); |