From 9386f96ca952529378f64b65633e38fdd8708307 Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Tue, 11 Dec 2012 11:09:43 +0100 Subject: part:efi: Move part_efi.h file to ./include This move is necessary to export gpt header and GPT partition entries to be used with other commands or subsystems. Additionally the part_efi.h file has been cleaned-up to supress checkpatch's warnings. Signed-off-by: Lukasz Majewski Signed-off-by: Kyungmin Park --- include/part_efi.h | 144 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 include/part_efi.h (limited to 'include') diff --git a/include/part_efi.h b/include/part_efi.h new file mode 100644 index 0000000..4e28d1d --- /dev/null +++ b/include/part_efi.h @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2008 RuggedCom, Inc. + * Richard Retanubun + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * See also linux/fs/partitions/efi.h + * + * EFI GUID Partition Table + * Per Intel EFI Specification v1.02 + * http://developer.intel.com/technology/efi/efi.htm +*/ + +#ifndef _DISK_PART_EFI_H +#define _DISK_PART_EFI_H + +#define MSDOS_MBR_SIGNATURE 0xAA55 +#define EFI_PMBR_OSTYPE_EFI 0xEF +#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE + +#define GPT_BLOCK_SIZE 512 +#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL +#define GPT_HEADER_REVISION_V1 0x00010000 +#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL +#define GPT_ENTRY_NAME "gpt" + +#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \ + ((efi_guid_t) \ + {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \ + (b) & 0xff, ((b) >> 8) & 0xff, \ + (c) & 0xff, ((c) >> 8) & 0xff, \ + (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }}) + +#define PARTITION_SYSTEM_GUID \ + EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \ + 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B) +#define LEGACY_MBR_PARTITION_GUID \ + EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \ + 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F) +#define PARTITION_MSFT_RESERVED_GUID \ + EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \ + 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE) +#define PARTITION_BASIC_DATA_GUID \ + EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \ + 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7) +#define PARTITION_LINUX_RAID_GUID \ + EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \ + 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e) +#define PARTITION_LINUX_SWAP_GUID \ + EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \ + 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f) +#define PARTITION_LINUX_LVM_GUID \ + EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \ + 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28) + +/* linux/include/efi.h */ +typedef unsigned short efi_char16_t; + +typedef struct { + unsigned char b[16]; +} efi_guid_t; + +/* based on linux/include/genhd.h */ +struct partition { + unsigned char boot_ind; /* 0x80 - active */ + unsigned char head; /* starting head */ + unsigned char sector; /* starting sector */ + unsigned char cyl; /* starting cylinder */ + unsigned char sys_ind; /* What partition type */ + unsigned char end_head; /* end head */ + unsigned char end_sector; /* end sector */ + unsigned char end_cyl; /* end cylinder */ + unsigned char start_sect[4]; /* starting sector counting from 0 */ + unsigned char nr_sects[4]; /* nr of sectors in partition */ +} __attribute__ ((packed)); + +/* based on linux/fs/partitions/efi.h */ +typedef struct _gpt_header { + unsigned char signature[8]; + unsigned char revision[4]; + unsigned char header_size[4]; + unsigned char header_crc32[4]; + unsigned char reserved1[4]; + unsigned char my_lba[8]; + unsigned char alternate_lba[8]; + unsigned char first_usable_lba[8]; + unsigned char last_usable_lba[8]; + efi_guid_t disk_guid; + unsigned char partition_entry_lba[8]; + unsigned char num_partition_entries[4]; + unsigned char sizeof_partition_entry[4]; + unsigned char partition_entry_array_crc32[4]; + unsigned char reserved2[GPT_BLOCK_SIZE - 92]; +} __attribute__ ((packed)) gpt_header; + +typedef union _gpt_entry_attributes { + struct { + unsigned long long required_to_function:1; + unsigned long long no_block_io_protocol:1; + unsigned long long legacy_bios_bootable:1; + unsigned long long reserved:45; + unsigned long long type_guid_specific:16; + } fields; + unsigned long long raw; +} __attribute__ ((packed)) gpt_entry_attributes; + +#define PARTNAME_SZ (72 / sizeof(efi_char16_t)) +typedef struct _gpt_entry { + efi_guid_t partition_type_guid; + efi_guid_t unique_partition_guid; + unsigned char starting_lba[8]; + unsigned char ending_lba[8]; + gpt_entry_attributes attributes; + efi_char16_t partition_name[PARTNAME_SZ]; +} +__attribute__ ((packed)) gpt_entry; + +typedef struct _legacy_mbr { + unsigned char boot_code[440]; + unsigned char unique_mbr_signature[4]; + unsigned char unknown[2]; + struct partition partition_record[4]; + unsigned char signature[2]; +} __attribute__ ((packed)) legacy_mbr; + +#endif /* _DISK_PART_EFI_H */ -- cgit v1.1