2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2006-2008 Marcel Moolenaar
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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.
34 #define G_PART_TRACE(args) g_trace args
36 #define G_PART_PROBE_PRI_LOW -10
37 #define G_PART_PROBE_PRI_NORM -5
38 #define G_PART_PROBE_PRI_HIGH 0
41 G_PART_ALIAS_APPLE_APFS, /* An Apple APFS partition. */
42 G_PART_ALIAS_APPLE_BOOT, /* An Apple boot partition entry. */
43 G_PART_ALIAS_APPLE_CORE_STORAGE,/* An Apple Core Storage partition. */
44 G_PART_ALIAS_APPLE_HFS, /* An HFS+ file system entry. */
45 G_PART_ALIAS_APPLE_LABEL, /* An Apple label partition entry. */
46 G_PART_ALIAS_APPLE_RAID, /* An Apple RAID partition entry. */
47 G_PART_ALIAS_APPLE_RAID_OFFLINE,/* An Apple RAID (offline) part entry.*/
48 G_PART_ALIAS_APPLE_TV_RECOVERY, /* An Apple TV recovery part entry. */
49 G_PART_ALIAS_APPLE_UFS, /* An Apple UFS partition entry. */
50 G_PART_ALIAS_APPLE_ZFS, /* An Apple ZFS partition entry.
51 Also used for Solaris /usr partition. */
52 G_PART_ALIAS_BIOS_BOOT, /* A GRUB 2 boot partition entry. */
53 G_PART_ALIAS_CHROMEOS_FIRMWARE, /* A ChromeOS firmware part. entry. */
54 G_PART_ALIAS_CHROMEOS_KERNEL, /* A ChromeOS Kernel part. entry. */
55 G_PART_ALIAS_CHROMEOS_RESERVED, /* ChromeOS. Reserved for future use. */
56 G_PART_ALIAS_CHROMEOS_ROOT, /* A ChromeOS root part. entry. */
57 G_PART_ALIAS_DFBSD, /* A DfBSD label32 partition entry */
58 G_PART_ALIAS_DFBSD64, /* A DfBSD label64 partition entry */
59 G_PART_ALIAS_DFBSD_CCD, /* A DfBSD CCD partition entry */
60 G_PART_ALIAS_DFBSD_HAMMER, /* A DfBSD HAMMER FS partition entry */
61 G_PART_ALIAS_DFBSD_HAMMER2, /* A DfBSD HAMMER2 FS partition entry */
62 G_PART_ALIAS_DFBSD_LEGACY, /* A DfBSD legacy partition entry */
63 G_PART_ALIAS_DFBSD_SWAP, /* A DfBSD swap partition entry */
64 G_PART_ALIAS_DFBSD_UFS, /* A DfBSD UFS partition entry */
65 G_PART_ALIAS_DFBSD_VINUM, /* A DfBSD Vinum partition entry */
66 G_PART_ALIAS_EBR, /* A EBR partition entry. */
67 G_PART_ALIAS_EFI, /* A EFI system partition entry. */
68 G_PART_ALIAS_FREEBSD, /* A BSD labeled partition entry. */
69 G_PART_ALIAS_FREEBSD_BOOT, /* A FreeBSD boot partition entry. */
70 G_PART_ALIAS_FREEBSD_NANDFS, /* A FreeBSD nandfs partition entry. */
71 G_PART_ALIAS_FREEBSD_SWAP, /* A swap partition entry. */
72 G_PART_ALIAS_FREEBSD_UFS, /* A UFS/UFS2 file system entry. */
73 G_PART_ALIAS_FREEBSD_VINUM, /* A Vinum partition entry. */
74 G_PART_ALIAS_FREEBSD_ZFS, /* A ZFS file system entry. */
75 G_PART_ALIAS_HIFIVE_FSBL, /* HiFive First Stage Bootloader */
76 G_PART_ALIAS_HIFIVE_BBL, /* HiFive Second Stage Bootloader */
77 G_PART_ALIAS_LINUX_DATA, /* A Linux data partition entry. */
78 G_PART_ALIAS_LINUX_LVM, /* A Linux LVM partition entry. */
79 G_PART_ALIAS_LINUX_RAID, /* A Linux RAID partition entry. */
80 G_PART_ALIAS_LINUX_SWAP, /* A Linux swap partition entry. */
81 G_PART_ALIAS_MBR, /* A MBR (extended) partition entry. */
82 G_PART_ALIAS_MS_BASIC_DATA, /* A Microsoft Data part. entry. */
83 G_PART_ALIAS_MS_FAT16, /* A Microsoft FAT16 partition entry. */
84 G_PART_ALIAS_MS_FAT32, /* A Microsoft FAT32 partition entry. */
85 G_PART_ALIAS_MS_FAT32LBA, /* A Microsoft FAT32 LBA partition entry */
86 G_PART_ALIAS_MS_LDM_DATA, /* A Microsoft LDM Data part. entry. */
87 G_PART_ALIAS_MS_LDM_METADATA, /* A Microsoft LDM Metadata entry. */
88 G_PART_ALIAS_MS_NTFS, /* A Microsoft NTFS partition entry */
89 G_PART_ALIAS_MS_RECOVERY, /* A Microsoft recovery part. entry. */
90 G_PART_ALIAS_MS_RESERVED, /* A Microsoft Reserved part. entry. */
91 G_PART_ALIAS_MS_SPACES, /* A Microsoft Spaces part. entry. */
92 G_PART_ALIAS_NETBSD_CCD, /* A NetBSD CCD partition entry. */
93 G_PART_ALIAS_NETBSD_CGD, /* A NetBSD CGD partition entry. */
94 G_PART_ALIAS_NETBSD_FFS, /* A NetBSD FFS partition entry. */
95 G_PART_ALIAS_NETBSD_LFS, /* A NetBSD LFS partition entry. */
96 G_PART_ALIAS_NETBSD_RAID, /* A NetBSD RAID partition entry. */
97 G_PART_ALIAS_NETBSD_SWAP, /* A NetBSD swap partition entry. */
98 G_PART_ALIAS_OPENBSD_DATA, /* An OpenBSD data partition entry. */
99 G_PART_ALIAS_PREP_BOOT, /* A PREP/CHRP boot partition entry. */
100 G_PART_ALIAS_SOLARIS_BOOT, /* A Solaris boot partition entry. */
101 G_PART_ALIAS_SOLARIS_ROOT, /* A Solaris root partition entry. */
102 G_PART_ALIAS_SOLARIS_SWAP, /* A Solaris swap partition entry. */
103 G_PART_ALIAS_SOLARIS_BACKUP, /* A Solaris backup partition entry. */
104 G_PART_ALIAS_SOLARIS_VAR, /* A Solaris /var partition entry. */
105 G_PART_ALIAS_SOLARIS_HOME, /* A Solaris /home partition entry. */
106 G_PART_ALIAS_SOLARIS_ALTSEC, /* A Solaris alternate sector partition entry. */
107 G_PART_ALIAS_SOLARIS_RESERVED, /* A Solaris reserved partition entry. */
108 G_PART_ALIAS_VMFS, /* A VMware VMFS partition entry */
109 G_PART_ALIAS_VMKDIAG, /* A VMware vmkDiagnostic partition entry */
110 G_PART_ALIAS_VMRESERVED, /* A VMware reserved partition entry */
111 G_PART_ALIAS_VMVSANHDR, /* A VMware vSAN header partition entry */
112 /* Keep the following last */
116 const char *g_part_alias_name(enum g_part_alias);
118 /* G_PART scheme (KOBJ class). */
119 struct g_part_scheme {
125 TAILQ_ENTRY(g_part_scheme) scheme_list;
128 struct g_part_entry {
129 LIST_ENTRY(g_part_entry) gpe_entry;
130 struct g_provider *gpe_pp; /* Corresponding provider. */
131 off_t gpe_offset; /* Byte offset. */
132 quad_t gpe_start; /* First LBA of partition. */
133 quad_t gpe_end; /* Last LBA of partition. */
135 int gpe_created:1; /* Entry is newly created. */
136 int gpe_deleted:1; /* Entry has been deleted. */
137 int gpe_modified:1; /* Entry has been modified. */
138 int gpe_internal:1; /* Entry is not a used entry. */
141 /* G_PART table (KOBJ instance). */
142 struct g_part_table {
144 struct g_part_scheme *gpt_scheme;
145 struct g_geom *gpt_gp;
146 LIST_HEAD(, g_part_entry) gpt_entry;
147 quad_t gpt_first; /* First allocatable LBA */
148 quad_t gpt_last; /* Last allocatable LBA */
151 * gpt_smhead and gpt_smtail are bitmaps representing the first
152 * 32 sectors on the disk (gpt_smhead) and the last 32 sectors
153 * on the disk (gpt_smtail). These maps are used by the commit
154 * verb to clear sectors previously used by a scheme after the
155 * partitioning scheme has been destroyed.
160 * gpt_sectors and gpt_heads are the fixed or synchesized number
161 * of sectors per track and heads (resp) that make up a disks
162 * geometry. This is to support partitioning schemes as well as
163 * file systems that work on a geometry. The MBR scheme and the
164 * MS-DOS (FAT) file system come to mind.
165 * We keep track of whether the geometry is fixed or synchesized
166 * so that a partitioning scheme can correct the synthesized
167 * geometry, based on the on-disk metadata.
169 uint32_t gpt_sectors;
172 int gpt_depth; /* Sub-partitioning level. */
173 int gpt_isleaf:1; /* Cannot be sub-partitioned. */
174 int gpt_created:1; /* Newly created. */
175 int gpt_modified:1; /* Table changes have been made. */
176 int gpt_opened:1; /* Permissions obtained. */
177 int gpt_fixgeom:1; /* Geometry is fixed. */
178 int gpt_corrupt:1; /* Table is corrupt. */
181 struct g_part_entry *g_part_new_entry(struct g_part_table *, int, quad_t,
201 /* G_PART ctlreq parameters. */
202 #define G_PART_PARM_ENTRIES 0x0001
203 #define G_PART_PARM_FLAGS 0x0002
204 #define G_PART_PARM_GEOM 0x0004
205 #define G_PART_PARM_INDEX 0x0008
206 #define G_PART_PARM_LABEL 0x0010
207 #define G_PART_PARM_OUTPUT 0x0020
208 #define G_PART_PARM_PROVIDER 0x0040
209 #define G_PART_PARM_SCHEME 0x0080
210 #define G_PART_PARM_SIZE 0x0100
211 #define G_PART_PARM_START 0x0200
212 #define G_PART_PARM_TYPE 0x0400
213 #define G_PART_PARM_VERSION 0x0800
214 #define G_PART_PARM_BOOTCODE 0x1000
215 #define G_PART_PARM_ATTRIB 0x2000
216 #define G_PART_PARM_FORCE 0x4000
217 #define G_PART_PARM_SKIP_DSN 0x8000
219 struct g_part_parms {
220 unsigned int gpp_parms;
221 unsigned int gpp_entries;
222 const char *gpp_flags;
223 struct g_geom *gpp_geom;
224 unsigned int gpp_index;
225 const char *gpp_label;
226 struct g_provider *gpp_provider;
227 struct g_part_scheme *gpp_scheme;
230 const char *gpp_type;
231 unsigned int gpp_version;
232 const void *gpp_codeptr;
233 unsigned int gpp_codesize;
234 const char *gpp_attrib;
235 unsigned int gpp_force;
236 unsigned int gpp_skip_dsn;
239 void g_part_geometry_heads(off_t, u_int, off_t *, u_int *);
241 int g_part_modevent(module_t, int, struct g_part_scheme *);
243 extern char g_part_separator[];
245 #define G_PART_SCHEME_DECLARE(name) \
246 static int name##_modevent(module_t mod, int tp, void *d) \
248 return (g_part_modevent(mod, tp, d)); \
250 static moduledata_t name##_mod = { \
255 DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_ANY); \
256 MODULE_DEPEND(name, g_part, 0, 0, 0)
258 #endif /* !_GEOM_PART_H_ */