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Diffstat (limited to 'sys/geom/part/g_part.h')
| -rw-r--r-- | sys/geom/part/g_part.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/sys/geom/part/g_part.h b/sys/geom/part/g_part.h new file mode 100644 index 0000000..bd697b7 --- /dev/null +++ b/sys/geom/part/g_part.h @@ -0,0 +1,130 @@ +/*- + * Copyright (c) 2006, 2007 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_EFI, /* A EFI system partition entry. */ + G_PART_ALIAS_FREEBSD, /* A BSD labeled 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_MBR, /* A MBR (extended) 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; +}; +#define G_PART_SCHEME_DECLARE(s) DATA_SET(g_part_scheme_set, s) + +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. */ +}; + +/* 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; + + 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. */ +}; + +struct g_part_entry *g_part_new_entry(struct g_part_table *, int, quad_t, + quad_t); + +/* 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_PROVIDER 0x0020 +#define G_PART_PARM_REQUEST 0x0040 +#define G_PART_PARM_RESPONSE 0x0080 +#define G_PART_PARM_SCHEME 0x0100 +#define G_PART_PARM_SIZE 0x0200 +#define G_PART_PARM_START 0x0400 +#define G_PART_PARM_TYPE 0x0800 + +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; + const char *gpp_request; + struct g_part_scheme *gpp_scheme; + quad_t gpp_size; + quad_t gpp_start; + const char *gpp_type; +}; + +#endif /* !_GEOM_PART_H_ */ |
