2 * Copyright (c) 2006-2008 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #define G_PART_TRACE(args) g_trace args
34 #define G_PART_PROBE_PRI_LOW -10
35 #define G_PART_PROBE_PRI_NORM -5
36 #define G_PART_PROBE_PRI_HIGH 0
39 G_PART_ALIAS_APPLE_BOOT, /* An Apple boot partition entry. */
40 G_PART_ALIAS_APPLE_HFS, /* An HFS+ file system entry. */
41 G_PART_ALIAS_APPLE_LABEL, /* An Apple label partition entry. */
42 G_PART_ALIAS_APPLE_RAID, /* An Apple RAID partition entry. */
43 G_PART_ALIAS_APPLE_RAID_OFFLINE,/* An Apple RAID (offline) part entry.*/
44 G_PART_ALIAS_APPLE_TV_RECOVERY, /* An Apple TV recovery part entry. */
45 G_PART_ALIAS_APPLE_UFS, /* An Apple UFS partition entry. */
46 G_PART_ALIAS_EFI, /* A EFI system partition entry. */
47 G_PART_ALIAS_FREEBSD, /* A BSD labeled partition entry. */
48 G_PART_ALIAS_FREEBSD_BOOT, /* A FreeBSD boot partition entry. */
49 G_PART_ALIAS_FREEBSD_NANDFS, /* A FreeBSD nandfs partition entry. */
50 G_PART_ALIAS_FREEBSD_SWAP, /* A swap partition entry. */
51 G_PART_ALIAS_FREEBSD_UFS, /* A UFS/UFS2 file system entry. */
52 G_PART_ALIAS_FREEBSD_VINUM, /* A Vinum partition entry. */
53 G_PART_ALIAS_FREEBSD_ZFS, /* A ZFS file system entry. */
54 G_PART_ALIAS_MBR, /* A MBR (extended) partition entry. */
55 G_PART_ALIAS_LINUX_DATA, /* A Linux data partition entry. */
56 G_PART_ALIAS_LINUX_LVM, /* A Linux LVM partition entry. */
57 G_PART_ALIAS_LINUX_RAID, /* A Linux RAID partition entry. */
58 G_PART_ALIAS_LINUX_SWAP, /* A Linux swap partition entry. */
59 G_PART_ALIAS_MS_BASIC_DATA, /* A Microsoft Data part. entry. */
60 G_PART_ALIAS_MS_LDM_DATA, /* A Microsoft LDM Data part. entry. */
61 G_PART_ALIAS_MS_LDM_METADATA, /* A Microsoft LDM Metadata entry. */
62 G_PART_ALIAS_MS_RESERVED, /* A Microsoft Reserved part. entry. */
63 G_PART_ALIAS_MS_NTFS, /* A Microsoft NTFS partition entry */
64 G_PART_ALIAS_NETBSD_CCD, /* A NetBSD CCD partition entry. */
65 G_PART_ALIAS_NETBSD_CGD, /* A NetBSD CGD partition entry. */
66 G_PART_ALIAS_NETBSD_FFS, /* A NetBSD FFS partition entry. */
67 G_PART_ALIAS_NETBSD_RAID, /* A NetBSD RAID partition entry. */
68 G_PART_ALIAS_NETBSD_SWAP, /* A NetBSD swap partition entry. */
69 G_PART_ALIAS_NETBSD_LFS, /* A NetBSD LFS partition entry. */
70 G_PART_ALIAS_EBR, /* A EBR partition entry. */
71 G_PART_ALIAS_MS_FAT16, /* A Microsoft FAT16 partition entry. */
72 G_PART_ALIAS_MS_FAT32, /* A Microsoft FAT32 partition entry. */
73 G_PART_ALIAS_BIOS_BOOT, /* A GRUB 2 boot partition entry. */
74 G_PART_ALIAS_VMFS, /* A VMware VMFS partition entry */
75 G_PART_ALIAS_VMKDIAG, /* A VMware vmkDiagnostic partition entry */
76 G_PART_ALIAS_VMRESERVED, /* A VMware reserved partition entry */
77 G_PART_ALIAS_VMVSANHDR, /* A VMware vSAN header partition entry */
78 G_PART_ALIAS_DFBSD, /* A DfBSD label32 partition entry */
79 G_PART_ALIAS_DFBSD64, /* A DfBSD label64 partition entry */
80 G_PART_ALIAS_DFBSD_SWAP, /* A DfBSD swap partition entry */
81 G_PART_ALIAS_DFBSD_UFS, /* A DfBSD UFS partition entry */
82 G_PART_ALIAS_DFBSD_VINUM, /* A DfBSD Vinum partition entry */
83 G_PART_ALIAS_DFBSD_CCD, /* A DfBSD CCD partition entry */
84 G_PART_ALIAS_DFBSD_LEGACY, /* A DfBSD legacy partition entry */
85 G_PART_ALIAS_DFBSD_HAMMER, /* A DfBSD HAMMER FS partition entry */
86 G_PART_ALIAS_DFBSD_HAMMER2, /* A DfBSD HAMMER2 FS partition entry */
87 G_PART_ALIAS_PREP_BOOT, /* A PREP/CHRP boot partition entry. */
88 G_PART_ALIAS_APPLE_CORE_STORAGE,/* An Apple Core Storage partition. */
89 /* Keep the following last */
93 const char *g_part_alias_name(enum g_part_alias);
95 /* G_PART scheme (KOBJ class). */
96 struct g_part_scheme {
102 TAILQ_ENTRY(g_part_scheme) scheme_list;
105 struct g_part_entry {
106 LIST_ENTRY(g_part_entry) gpe_entry;
107 struct g_provider *gpe_pp; /* Corresponding provider. */
108 off_t gpe_offset; /* Byte offset. */
109 quad_t gpe_start; /* First LBA of partition. */
110 quad_t gpe_end; /* Last LBA of partition. */
112 int gpe_created:1; /* Entry is newly created. */
113 int gpe_deleted:1; /* Entry has been deleted. */
114 int gpe_modified:1; /* Entry has been modified. */
115 int gpe_internal:1; /* Entry is not a used entry. */
118 /* G_PART table (KOBJ instance). */
119 struct g_part_table {
121 struct g_part_scheme *gpt_scheme;
122 struct g_geom *gpt_gp;
123 LIST_HEAD(, g_part_entry) gpt_entry;
124 quad_t gpt_first; /* First allocatable LBA */
125 quad_t gpt_last; /* Last allocatable LBA */
128 * gpt_smhead and gpt_smtail are bitmaps representing the first
129 * 32 sectors on the disk (gpt_smhead) and the last 32 sectors
130 * on the disk (gpt_smtail). These maps are used by the commit
131 * verb to clear sectors previously used by a scheme after the
132 * partitioning scheme has been destroyed.
137 * gpt_sectors and gpt_heads are the fixed or synchesized number
138 * of sectors per track and heads (resp) that make up a disks
139 * geometry. This is to support partitioning schemes as well as
140 * file systems that work on a geometry. The MBR scheme and the
141 * MS-DOS (FAT) file system come to mind.
142 * We keep track of whether the geometry is fixed or synchesized
143 * so that a partitioning scheme can correct the synthesized
144 * geometry, based on the on-disk metadata.
146 uint32_t gpt_sectors;
149 int gpt_depth; /* Sub-partitioning level. */
150 int gpt_isleaf:1; /* Cannot be sub-partitioned. */
151 int gpt_created:1; /* Newly created. */
152 int gpt_modified:1; /* Table changes have been made. */
153 int gpt_opened:1; /* Permissions obtained. */
154 int gpt_fixgeom:1; /* Geometry is fixed. */
155 int gpt_corrupt:1; /* Table is corrupt. */
158 struct g_part_entry *g_part_new_entry(struct g_part_table *, int, quad_t,
178 /* G_PART ctlreq parameters. */
179 #define G_PART_PARM_ENTRIES 0x0001
180 #define G_PART_PARM_FLAGS 0x0002
181 #define G_PART_PARM_GEOM 0x0004
182 #define G_PART_PARM_INDEX 0x0008
183 #define G_PART_PARM_LABEL 0x0010
184 #define G_PART_PARM_OUTPUT 0x0020
185 #define G_PART_PARM_PROVIDER 0x0040
186 #define G_PART_PARM_SCHEME 0x0080
187 #define G_PART_PARM_SIZE 0x0100
188 #define G_PART_PARM_START 0x0200
189 #define G_PART_PARM_TYPE 0x0400
190 #define G_PART_PARM_VERSION 0x0800
191 #define G_PART_PARM_BOOTCODE 0x1000
192 #define G_PART_PARM_ATTRIB 0x2000
193 #define G_PART_PARM_FORCE 0x4000
195 struct g_part_parms {
196 unsigned int gpp_parms;
197 unsigned int gpp_entries;
198 const char *gpp_flags;
199 struct g_geom *gpp_geom;
200 unsigned int gpp_index;
201 const char *gpp_label;
202 struct g_provider *gpp_provider;
203 struct g_part_scheme *gpp_scheme;
206 const char *gpp_type;
207 unsigned int gpp_version;
208 const void *gpp_codeptr;
209 unsigned int gpp_codesize;
210 const char *gpp_attrib;
211 unsigned int gpp_force;
214 void g_part_geometry_heads(off_t, u_int, off_t *, u_int *);
216 int g_part_modevent(module_t, int, struct g_part_scheme *);
218 #define G_PART_SCHEME_DECLARE(name) \
219 static int name##_modevent(module_t mod, int tp, void *d) \
221 return (g_part_modevent(mod, tp, d)); \
223 static moduledata_t name##_mod = { \
228 DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_ANY); \
229 MODULE_DEPEND(name, g_part, 0, 0, 0)
231 #endif /* !_GEOM_PART_H_ */