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1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
22 | * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. | |
23 | */ | |
24 | ||
25 | #ifndef _SYS_EFI_PARTITION_H | |
26 | #define _SYS_EFI_PARTITION_H | |
27 | ||
28 | #include <sys/uuid.h> | |
29 | ||
30 | #ifdef __cplusplus | |
31 | extern "C" { | |
32 | #endif | |
33 | ||
34 | /* | |
35 | * GUID Partition Table Header | |
36 | */ | |
37 | ||
38 | #define EFI_MIN_LABEL_SIZE 92 | |
39 | #define EFI_LABEL_SIZE 512 | |
40 | #define LEN_EFI_PAD (EFI_LABEL_SIZE - \ | |
41 | ((5 * sizeof (diskaddr_t)) + \ | |
42 | (7 * sizeof (uint_t)) + \ | |
43 | (8 * sizeof (char)) + \ | |
44 | (1 * (sizeof (struct uuid))))) | |
45 | ||
46 | #define EFI_SIGNATURE 0x5452415020494645ULL | |
47 | ||
48 | /* EFI Guid Partition Table Header -- little endian on-disk format */ | |
49 | typedef struct efi_gpt { | |
50 | uint64_t efi_gpt_Signature; | |
51 | uint_t efi_gpt_Revision; | |
52 | uint_t efi_gpt_HeaderSize; | |
53 | uint_t efi_gpt_HeaderCRC32; | |
54 | uint_t efi_gpt_Reserved1; | |
55 | diskaddr_t efi_gpt_MyLBA; | |
56 | diskaddr_t efi_gpt_AlternateLBA; | |
57 | diskaddr_t efi_gpt_FirstUsableLBA; | |
58 | diskaddr_t efi_gpt_LastUsableLBA; | |
59 | struct uuid efi_gpt_DiskGUID; | |
60 | diskaddr_t efi_gpt_PartitionEntryLBA; | |
61 | uint_t efi_gpt_NumberOfPartitionEntries; | |
62 | uint_t efi_gpt_SizeOfPartitionEntry; | |
63 | uint_t efi_gpt_PartitionEntryArrayCRC32; | |
64 | char efi_gpt_Reserved2[LEN_EFI_PAD]; | |
65 | } efi_gpt_t; | |
66 | ||
67 | /* EFI Guid Partition Entry Attributes -- little endian format */ | |
68 | typedef struct efi_gpe_Attrs { | |
69 | uint32_t PartitionAttrs :16, | |
70 | Reserved2 :16; | |
71 | uint32_t Reserved1 :31, | |
72 | RequiredPartition :1; | |
73 | } efi_gpe_Attrs_t; | |
74 | ||
75 | /* | |
76 | * 6a96237f-1dd2-11b2-99a6-080020736631 V_UNASSIGNED (not used as such) | |
77 | * 6a82cb45-1dd2-11b2-99a6-080020736631 V_BOOT | |
78 | * 6a85cf4d-1dd2-11b2-99a6-080020736631 V_ROOT | |
79 | * 6a87c46f-1dd2-11b2-99a6-080020736631 V_SWAP | |
80 | * 6a898cc3-1dd2-11b2-99a6-080020736631 V_USR | |
81 | * 6a8b642b-1dd2-11b2-99a6-080020736631 V_BACKUP | |
82 | * 6a8d2ac7-1dd2-11b2-99a6-080020736631 V_STAND (not used) | |
83 | * 6a8ef2e9-1dd2-11b2-99a6-080020736631 V_VAR | |
84 | * 6a90ba39-1dd2-11b2-99a6-080020736631 V_HOME | |
85 | * 6a9283a5-1dd2-11b2-99a6-080020736631 V_ALTSCTR | |
86 | * 6a945a3b-1dd2-11b2-99a6-080020736631 V_CACHE | |
87 | */ | |
88 | ||
0bd31011 TG |
89 | #define EFI_UNUSED { 0x00000000, 0x0000, 0x0000, 0x00, 0x00, \ |
90 | { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } | |
91 | #define EFI_RESV1 { 0x6a96237f, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
92 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
93 | #define EFI_BOOT { 0x6a82cb45, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
94 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
95 | #define EFI_ROOT { 0x6a85cf4d, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
96 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
97 | #define EFI_SWAP { 0x6a87c46f, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
98 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
99 | #define EFI_USR { 0x6a898cc3, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
100 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
101 | #define EFI_BACKUP { 0x6a8b642b, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
102 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
103 | #define EFI_RESV2 { 0x6a8d2ac7, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
104 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
105 | #define EFI_VAR { 0x6a8ef2e9, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
106 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
107 | #define EFI_HOME { 0x6a90ba39, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
108 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
109 | #define EFI_ALTSCTR { 0x6a9283a5, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
110 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
111 | #define EFI_RESERVED { 0x6a945a3b, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
112 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
113 | #define EFI_SYSTEM { 0xC12A7328, 0xF81F, 0x11d2, 0xBA, 0x4B, \ | |
114 | { 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } } | |
115 | #define EFI_LEGACY_MBR { 0x024DEE41, 0x33E7, 0x11d3, 0x9D, 0x69, \ | |
116 | { 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F } } | |
117 | #define EFI_SYMC_PUB { 0x6a9630d1, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
118 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
119 | #define EFI_SYMC_CDS { 0x6a980767, 0x1dd2, 0x11b2, 0x99, 0xa6, \ | |
120 | { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } | |
121 | #define EFI_MSFT_RESV { 0xE3C9E316, 0x0B5C, 0x4DB8, 0x81, 0x7D, \ | |
122 | { 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } } | |
123 | #define EFI_DELL_BASIC { 0xebd0a0a2, 0xb9e5, 0x4433, 0x87, 0xc0, \ | |
124 | { 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7 } } | |
125 | #define EFI_DELL_RAID { 0xa19d880f, 0x05fc, 0x4d3b, 0xa0, 0x06, \ | |
126 | { 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e } } | |
127 | #define EFI_DELL_SWAP { 0x0657fd6d, 0xa4ab, 0x43c4, 0x84, 0xe5, \ | |
128 | { 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f } } | |
129 | #define EFI_DELL_LVM { 0xe6d6d379, 0xf507, 0x44c2, 0xa2, 0x3c, \ | |
130 | { 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28 } } | |
131 | #define EFI_DELL_RESV { 0x8da63339, 0x0007, 0x60c0, 0xc4, 0x36, \ | |
132 | { 0x08, 0x3a, 0xc8, 0x23, 0x09, 0x08 } } | |
133 | #define EFI_AAPL_HFS { 0x48465300, 0x0000, 0x11aa, 0xaa, 0x11, \ | |
134 | { 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } } | |
135 | #define EFI_AAPL_UFS { 0x55465300, 0x0000, 0x11aa, 0xaa, 0x11, \ | |
136 | { 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } } | |
7bdf406d TG |
137 | |
138 | /* minimum # of bytes for partition table entires, per EFI spec */ | |
139 | #define EFI_MIN_ARRAY_SIZE (16 * 1024) | |
140 | ||
141 | #define EFI_PART_NAME_LEN 36 | |
142 | ||
143 | /* size of the "reserved" partition, in blocks */ | |
144 | #define EFI_MIN_RESV_SIZE (16 * 1024) | |
145 | ||
146 | /* EFI Guid Partition Entry */ | |
147 | typedef struct efi_gpe { | |
148 | struct uuid efi_gpe_PartitionTypeGUID; | |
149 | struct uuid efi_gpe_UniquePartitionGUID; | |
150 | diskaddr_t efi_gpe_StartingLBA; | |
151 | diskaddr_t efi_gpe_EndingLBA; | |
152 | efi_gpe_Attrs_t efi_gpe_Attributes; | |
153 | ushort_t efi_gpe_PartitionName[EFI_PART_NAME_LEN]; | |
154 | } efi_gpe_t; | |
155 | ||
156 | /* | |
157 | * passed to the useful (we hope) routines (efi_alloc_and_read and | |
158 | * efi_write) that take this VTOC-like struct. These routines handle | |
159 | * converting this struct into the EFI struct, generate UUIDs and | |
160 | * checksums, and perform any necessary byte-swapping to the on-disk | |
161 | * format. | |
162 | */ | |
163 | /* Solaris library abstraction for EFI partitons */ | |
164 | typedef struct dk_part { | |
165 | diskaddr_t p_start; /* starting LBA */ | |
166 | diskaddr_t p_size; /* size in blocks */ | |
167 | struct uuid p_guid; /* partion type GUID */ | |
168 | ushort_t p_tag; /* converted to part'n type GUID */ | |
169 | ushort_t p_flag; /* attributes */ | |
170 | char p_name[EFI_PART_NAME_LEN]; /* partition name */ | |
171 | struct uuid p_uguid; /* unique partition GUID */ | |
172 | uint_t p_resv[8]; /* future use - set to zero */ | |
173 | } dk_part_t; | |
174 | ||
175 | /* Solaris library abstraction for an EFI GPT */ | |
176 | #define EFI_VERSION102 0x00010002 | |
177 | #define EFI_VERSION100 0x00010000 | |
178 | #define EFI_VERSION_CURRENT EFI_VERSION100 | |
179 | typedef struct dk_gpt { | |
180 | uint_t efi_version; /* set to EFI_VERSION_CURRENT */ | |
181 | uint_t efi_nparts; /* number of partitions below */ | |
182 | uint_t efi_part_size; /* size of each partition entry */ | |
183 | /* efi_part_size is unused */ | |
184 | uint_t efi_lbasize; /* size of block in bytes */ | |
185 | diskaddr_t efi_last_lba; /* last block on the disk */ | |
186 | diskaddr_t efi_first_u_lba; /* first block after labels */ | |
187 | diskaddr_t efi_last_u_lba; /* last block before backup labels */ | |
188 | struct uuid efi_disk_uguid; /* unique disk GUID */ | |
189 | uint_t efi_flags; | |
190 | uint_t efi_reserved1; /* future use - set to zero */ | |
191 | diskaddr_t efi_altern_lba; /* lba of alternate GPT header */ | |
192 | uint_t efi_reserved[12]; /* future use - set to zero */ | |
193 | struct dk_part efi_parts[1]; /* array of partitions */ | |
194 | } dk_gpt_t; | |
195 | ||
196 | /* possible values for "efi_flags" */ | |
197 | #define EFI_GPT_PRIMARY_CORRUPT 0x1 /* primary label corrupt */ | |
198 | ||
199 | /* the private ioctl between libefi and the driver */ | |
200 | typedef struct dk_efi { | |
201 | diskaddr_t dki_lba; /* starting block */ | |
202 | len_t dki_length; /* length in bytes */ | |
203 | union { | |
204 | efi_gpt_t *_dki_data; | |
205 | uint64_t _dki_data_64; | |
206 | } dki_un; | |
207 | #define dki_data dki_un._dki_data | |
208 | #define dki_data_64 dki_un._dki_data_64 | |
209 | } dk_efi_t; | |
210 | ||
211 | struct partition64 { | |
212 | struct uuid p_type; | |
213 | uint_t p_partno; | |
214 | uint_t p_resv1; | |
215 | diskaddr_t p_start; | |
216 | diskaddr_t p_size; | |
217 | }; | |
218 | ||
219 | /* | |
220 | * Number of EFI partitions | |
221 | */ | |
222 | #if defined(__linux__) | |
223 | #define EFI_NUMPAR 128 /* Expected by parted-1.8.1 */ | |
224 | #else | |
225 | #define EFI_NUMPAR 9 | |
226 | #endif | |
227 | ||
228 | #ifndef _KERNEL | |
229 | extern int efi_alloc_and_init(int, uint32_t, struct dk_gpt **); | |
230 | extern int efi_alloc_and_read(int, struct dk_gpt **); | |
231 | extern int efi_write(int, struct dk_gpt *); | |
232 | extern int efi_rescan(int); | |
233 | extern void efi_free(struct dk_gpt *); | |
234 | extern int efi_type(int); | |
235 | extern void efi_err_check(struct dk_gpt *); | |
236 | extern int efi_auto_sense(int fd, struct dk_gpt **); | |
237 | extern int efi_use_whole_disk(int fd); | |
238 | #endif | |
239 | ||
240 | #ifdef __cplusplus | |
241 | } | |
242 | #endif | |
243 | ||
244 | #endif /* _SYS_EFI_PARTITION_H */ |