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/*-
* Copyright (c) 2006-2008 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _GEOM_PART_H_
#define _GEOM_PART_H_
#define G_PART_TRACE(args) g_trace args
#define G_PART_PROBE_PRI_LOW -10
#define G_PART_PROBE_PRI_NORM -5
#define G_PART_PROBE_PRI_HIGH 0
enum g_part_alias {
G_PART_ALIAS_APPLE_BOOT, /* An Apple boot partition entry. */
G_PART_ALIAS_APPLE_HFS, /* An HFS+ file system entry. */
G_PART_ALIAS_APPLE_LABEL, /* An Apple label partition entry. */
G_PART_ALIAS_APPLE_RAID, /* An Apple RAID partition entry. */
G_PART_ALIAS_APPLE_RAID_OFFLINE,/* An Apple RAID (offline) part entry.*/
G_PART_ALIAS_APPLE_TV_RECOVERY, /* An Apple TV recovery part entry. */
G_PART_ALIAS_APPLE_UFS, /* An Apple UFS partition entry. */
G_PART_ALIAS_EFI, /* A EFI system partition entry. */
G_PART_ALIAS_FREEBSD, /* A BSD labeled partition entry. */
G_PART_ALIAS_FREEBSD_BOOT, /* A FreeBSD boot partition entry. */
G_PART_ALIAS_FREEBSD_NANDFS, /* A FreeBSD nandfs partition entry. */
G_PART_ALIAS_FREEBSD_SWAP, /* A swap partition entry. */
G_PART_ALIAS_FREEBSD_UFS, /* A UFS/UFS2 file system entry. */
G_PART_ALIAS_FREEBSD_VINUM, /* A Vinum partition entry. */
G_PART_ALIAS_FREEBSD_ZFS, /* A ZFS file system entry. */
G_PART_ALIAS_MBR, /* A MBR (extended) partition entry. */
G_PART_ALIAS_LINUX_DATA, /* A Linux data partition entry. */
G_PART_ALIAS_LINUX_LVM, /* A Linux LVM partition entry. */
G_PART_ALIAS_LINUX_RAID, /* A Linux RAID partition entry. */
G_PART_ALIAS_LINUX_SWAP, /* A Linux swap partition entry. */
G_PART_ALIAS_MS_BASIC_DATA, /* A Microsoft Data part. entry. */
G_PART_ALIAS_MS_LDM_DATA, /* A Microsoft LDM Data part. entry. */
G_PART_ALIAS_MS_LDM_METADATA, /* A Microsoft LDM Metadata entry. */
G_PART_ALIAS_MS_RESERVED, /* A Microsoft Reserved part. entry. */
G_PART_ALIAS_MS_NTFS, /* A Microsoft NTFS partition entry */
G_PART_ALIAS_NETBSD_CCD, /* A NetBSD CCD partition entry. */
G_PART_ALIAS_NETBSD_CGD, /* A NetBSD CGD partition entry. */
G_PART_ALIAS_NETBSD_FFS, /* A NetBSD FFS partition entry. */
G_PART_ALIAS_NETBSD_RAID, /* A NetBSD RAID partition entry. */
G_PART_ALIAS_NETBSD_SWAP, /* A NetBSD swap partition entry. */
G_PART_ALIAS_NETBSD_LFS, /* A NetBSD LFS partition entry. */
G_PART_ALIAS_EBR, /* A EBR partition entry. */
G_PART_ALIAS_MS_FAT16, /* A Microsoft FAT16 partition entry. */
G_PART_ALIAS_MS_FAT32, /* A Microsoft FAT32 partition entry. */
G_PART_ALIAS_BIOS_BOOT, /* A GRUB 2 boot partition entry. */
G_PART_ALIAS_VMFS, /* A VMware VMFS partition entry */
G_PART_ALIAS_VMKDIAG, /* A VMware vmkDiagnostic partition entry */
G_PART_ALIAS_VMRESERVED, /* A VMware reserved partition entry */
G_PART_ALIAS_VMVSANHDR, /* A VMware vSAN header partition entry */
/* Keep the following last */
G_PART_ALIAS_COUNT
};
const char *g_part_alias_name(enum g_part_alias);
/* G_PART scheme (KOBJ class). */
struct g_part_scheme {
KOBJ_CLASS_FIELDS;
size_t gps_entrysz;
int gps_minent;
int gps_maxent;
int gps_bootcodesz;
TAILQ_ENTRY(g_part_scheme) scheme_list;
};
struct g_part_entry {
LIST_ENTRY(g_part_entry) gpe_entry;
struct g_provider *gpe_pp; /* Corresponding provider. */
off_t gpe_offset; /* Byte offset. */
quad_t gpe_start; /* First LBA of partition. */
quad_t gpe_end; /* Last LBA of partition. */
int gpe_index;
int gpe_created:1; /* Entry is newly created. */
int gpe_deleted:1; /* Entry has been deleted. */
int gpe_modified:1; /* Entry has been modified. */
int gpe_internal:1; /* Entry is not a used entry. */
};
/* G_PART table (KOBJ instance). */
struct g_part_table {
KOBJ_FIELDS;
struct g_part_scheme *gpt_scheme;
struct g_geom *gpt_gp;
LIST_HEAD(, g_part_entry) gpt_entry;
quad_t gpt_first; /* First allocatable LBA */
quad_t gpt_last; /* Last allocatable LBA */
int gpt_entries;
/*
* gpt_smhead and gpt_smtail are bitmaps representing the first
* 32 sectors on the disk (gpt_smhead) and the last 32 sectors
* on the disk (gpt_smtail). These maps are used by the commit
* verb to clear sectors previously used by a scheme after the
* partitioning scheme has been destroyed.
*/
uint32_t gpt_smhead;
uint32_t gpt_smtail;
/*
* gpt_sectors and gpt_heads are the fixed or synchesized number
* of sectors per track and heads (resp) that make up a disks
* geometry. This is to support partitioning schemes as well as
* file systems that work on a geometry. The MBR scheme and the
* MS-DOS (FAT) file system come to mind.
* We keep track of whether the geometry is fixed or synchesized
* so that a partitioning scheme can correct the synthesized
* geometry, based on the on-disk metadata.
*/
uint32_t gpt_sectors;
uint32_t gpt_heads;
int gpt_depth; /* Sub-partitioning level. */
int gpt_isleaf:1; /* Cannot be sub-partitioned. */
int gpt_created:1; /* Newly created. */
int gpt_modified:1; /* Table changes have been made. */
int gpt_opened:1; /* Permissions obtained. */
int gpt_fixgeom:1; /* Geometry is fixed. */
int gpt_corrupt:1; /* Table is corrupt. */
};
struct g_part_entry *g_part_new_entry(struct g_part_table *, int, quad_t,
quad_t);
enum g_part_ctl {
G_PART_CTL_NONE,
G_PART_CTL_ADD,
G_PART_CTL_BOOTCODE,
G_PART_CTL_COMMIT,
G_PART_CTL_CREATE,
G_PART_CTL_DELETE,
G_PART_CTL_DESTROY,
G_PART_CTL_MODIFY,
G_PART_CTL_MOVE,
G_PART_CTL_RECOVER,
G_PART_CTL_RESIZE,
G_PART_CTL_SET,
G_PART_CTL_UNDO,
G_PART_CTL_UNSET
};
/* G_PART ctlreq parameters. */
#define G_PART_PARM_ENTRIES 0x0001
#define G_PART_PARM_FLAGS 0x0002
#define G_PART_PARM_GEOM 0x0004
#define G_PART_PARM_INDEX 0x0008
#define G_PART_PARM_LABEL 0x0010
#define G_PART_PARM_OUTPUT 0x0020
#define G_PART_PARM_PROVIDER 0x0040
#define G_PART_PARM_SCHEME 0x0080
#define G_PART_PARM_SIZE 0x0100
#define G_PART_PARM_START 0x0200
#define G_PART_PARM_TYPE 0x0400
#define G_PART_PARM_VERSION 0x0800
#define G_PART_PARM_BOOTCODE 0x1000
#define G_PART_PARM_ATTRIB 0x2000
#define G_PART_PARM_FORCE 0x4000
struct g_part_parms {
unsigned int gpp_parms;
unsigned int gpp_entries;
const char *gpp_flags;
struct g_geom *gpp_geom;
unsigned int gpp_index;
const char *gpp_label;
struct g_provider *gpp_provider;
struct g_part_scheme *gpp_scheme;
quad_t gpp_size;
quad_t gpp_start;
const char *gpp_type;
unsigned int gpp_version;
const void *gpp_codeptr;
unsigned int gpp_codesize;
const char *gpp_attrib;
unsigned int gpp_force;
};
void g_part_geometry_heads(off_t, u_int, off_t *, u_int *);
int g_part_modevent(module_t, int, struct g_part_scheme *);
#define G_PART_SCHEME_DECLARE(name) \
static int name##_modevent(module_t mod, int tp, void *d) \
{ \
return (g_part_modevent(mod, tp, d)); \
} \
static moduledata_t name##_mod = { \
#name, \
name##_modevent, \
&name##_scheme \
}; \
DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_ANY); \
MODULE_DEPEND(name, g_part, 0, 0, 0)
#endif /* !_GEOM_PART_H_ */
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