1 /* $NetBSD: disklabel_gpt.h,v 1.6.6.1 2009/01/26 00:33:47 snj Exp $ */
2
3 /*
4 * Copyright (c) 2002 Marcel Moolenaar
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/sys/gpt.h,v 1.7 2004/08/02 18:46:52 marcel Exp $
29 */
30
31 #ifndef _SYS_DISKLABEL_GPT_H_
32 #define _SYS_DISKLABEL_GPT_H_
33
34 /*
35 * Definitions for the EFI GUID Partition Table disk partitioning scheme.
36 *
37 * NOTE: As EFI is an Intel specification, all fields are stored in
38 * little-endian byte-order.
39 */
40
41 /*
42 * GUID Partition Table Header
43 */
44 struct gpt_hdr {
45 int8_t hdr_sig[8]; /* identifies GUID Partition Table */
46 uint32_t hdr_revision; /* GPT specification revsion */
47 uint32_t hdr_size; /* size of GPT Header */
48 uint32_t hdr_crc_self; /* CRC32 of GPT Header */
49 uint32_t hdr__rsvd0; /* must be zero */
50 uint64_t hdr_lba_self; /* LBA that contains this Header */
51 uint64_t hdr_lba_alt; /* LBA of backup GPT Header */
52 uint64_t hdr_lba_start; /* first LBA usable for partitions */
53 uint64_t hdr_lba_end; /* last LBA usable for partitions */
54 uint8_t hdr_guid[16]; /* GUID to identify the disk */
55 uint64_t hdr_lba_table; /* first LBA of GPE array */
56 uint32_t hdr_entries; /* number of entries in GPE array */
57 uint32_t hdr_entsz; /* size of each GPE */
58 uint32_t hdr_crc_table; /* CRC32 of GPE array */
59 /*
60 * The remainder of the block that contains the GPT Header
61 * is reserved by EFI for future GPT Header expansion, and
62 * must be zero.
63 */
64 };
65
66 #define GPT_HDR_SIG "EFI PART"
67 #define GPT_HDR_REVISION 0x00010000 /* 1.0 */
68
69 #define GPT_HDR_BLKNO 1
70
71 #define GPT_HDR_SIZE 0x5c
72
73 /*
74 * GUID Partition Entry
75 */
76 struct gpt_ent {
77 uint8_t ent_type[16]; /* partition type GUID */
78 uint8_t ent_guid[16]; /* unique partition GUID */
79 uint64_t ent_lba_start; /* start of partition */
80 uint64_t ent_lba_end; /* end of partition */
81 uint64_t ent_attr; /* partition attributes */
82 uint16_t ent_name[36]; /* partition name in UNICODE-16 */
83 };
84
85 #define GPT_ENT_ATTR_PLATFORM (1ULL << 0) /* required for platform
86 to function */
87
88 /*
89 * Partition types defined by the EFI specification:
90 *
91 * GPT_ENT_TYPE_UNUSED Unused Entry
92 * GPT_ENT_TYPE_EFI EFI System Partition
93 * GPT_ENT_TYPE_MBR Partition containing legacy MBR
94 */
95 #define GPT_ENT_TYPE_UNUSED \
96 {0x00000000,0x0000,0x0000,0x00,0x00,{0x00,0x00,0x00,0x00,0x00,0x00}}
97 #define GPT_ENT_TYPE_EFI \
98 {0xc12a7328,0xf81f,0x11d2,0xba,0x4b,{0x00,0xa0,0xc9,0x3e,0xc9,0x3b}}
99 #define GPT_ENT_TYPE_MBR \
100 {0x024dee41,0x33e7,0x11d3,0x9d,0x69,{0x00,0x08,0xc7,0x81,0xf3,0x9f}}
101
102 /*
103 * Partition types defined by other operating systems.
104 */
105 #define GPT_ENT_TYPE_NETBSD_SWAP \
106 {0x49f48d32,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
107 #define GPT_ENT_TYPE_NETBSD_FFS \
108 {0x49f48d5a,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
109 #define GPT_ENT_TYPE_NETBSD_LFS \
110 {0x49f48d82,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
111 #define GPT_ENT_TYPE_NETBSD_RAIDFRAME \
112 {0x49f48daa,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
113 #define GPT_ENT_TYPE_NETBSD_CCD \
114 {0x2db519c4,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
115 #define GPT_ENT_TYPE_NETBSD_CGD \
116 {0x2db519ec,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}}
117
118 #define GPT_ENT_TYPE_FREEBSD \
119 {0x516e7cb4,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
120 #define GPT_ENT_TYPE_FREEBSD_SWAP \
121 {0x516e7cb5,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
122 #define GPT_ENT_TYPE_FREEBSD_UFS \
123 {0x516e7cb6,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
124 #define GPT_ENT_TYPE_FREEBSD_VINUM \
125 {0x516e7cb8,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
126 /*
127 * The following are unused but documented here to avoid reuse.
128 *
129 * GPT_ENT_TYPE_FREEBSD_UFS2 \
130 * {0x516e7cb7,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}}
131 */
132
133 #define GPT_ENT_TYPE_MS_RESERVED \
134 {0xe3c9e316,0x0b5c,0x4db8,0x81,0x7d,{0xf9,0x2d,0xf0,0x02,0x15,0xae}}
135 #define GPT_ENT_TYPE_MS_BASIC_DATA \
136 {0xebd0a0a2,0xb9e5,0x4433,0x87,0xc0,{0x68,0xb6,0xb7,0x26,0x99,0xc7}}
137 #define GPT_ENT_TYPE_MS_LDM_METADATA \
138 {0x5808c8aa,0x7e8f,0x42e0,0x85,0xd2,{0xe1,0xe9,0x04,0x34,0xcf,0xb3}}
139 #define GPT_ENT_TYPE_MS_LDM_DATA \
140 {0xaf9b60a0,0x1431,0x4f62,0xbc,0x68,{0x33,0x11,0x71,0x4a,0x69,0xad}}
141
142 #define GPT_ENT_TYPE_LINUX_DATA GPT_ENT_TYPE_MS_BASIC_DATA
143 #define GPT_ENT_TYPE_LINUX_RAID \
144 {0xa19d880f,0x05fc,0x4d3b,0xa0,0x06,{0x74,0x3f,0x0f,0x84,0x91,0x1e}}
145 #define GPT_ENT_TYPE_LINUX_SWAP \
146 {0x0657fd6d,0xa4ab,0x43c4,0x84,0xe5,{0x09,0x33,0xc8,0x4b,0x4f,0x4f}}
147 #define GPT_ENT_TYPE_LINUX_LVM \
148 {0xe6d6d379,0xf507,0x44c2,0xa2,0x3c,{0x23,0x8f,0x2a,0x3d,0xf9,0x28}}
149
150 #define GPT_ENT_TYPE_APPLE_HFS \
151 {0x48465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
152 #define GPT_ENT_TYPE_APPLE_UFS \
153 {0x55465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}}
154
155 /*
156 * Used by GRUB 2.
157 */
158 #define GPT_ENT_TYPE_BIOS \
159 {0x21686148,0x6449,0x6e6f,0x74,0x4e,{0x65,0x65,0x64,0x45,0x46,0x49}}
160
161 #endif /* _SYS_DISKLABEL_GPT_H_ */
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