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d18e491f68
Add 'pvck --dump headers' to print all the lvm ondisk structs. Also checks the values and prints any problems. The previous dump metadata is also converted to use these same routines, which do not depend on lvm fully scanning/reading/processing the headers and metadata on disk. This makes it useful to get data in cases where there is corruption that would otherwise prevent the normal functions from working.
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _LVM_FORMAT_TEXT_H
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#define _LVM_FORMAT_TEXT_H
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#include "lib/metadata/metadata.h"
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#define FMT_TEXT_NAME "lvm2"
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#define FMT_TEXT_ALIAS "text"
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#define FMT_TEXT_ORPHAN_VG_NAME ORPHAN_VG_NAME(FMT_TEXT_NAME)
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#define FMT_TEXT_MAX_MDAS_PER_PV 2
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/*
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* Archives a vg config. 'retain_days' is the minimum number of
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* days that an archive file must be held for. 'min_archives' is
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* the minimum number of archives required to be kept for each
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* volume group.
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*/
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int archive_vg(struct volume_group *vg,
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const char *dir,
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const char *desc, uint32_t retain_days, uint32_t min_archive);
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/*
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* Displays a list of vg backups in a particular archive directory.
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*/
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int archive_list(struct cmd_context *cmd, const char *dir, const char *vgname);
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int archive_list_file(struct cmd_context *cmd, const char *file);
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int backup_list(struct cmd_context *cmd, const char *dir, const char *vgname);
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/*
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* The text format can read and write a volume_group to a file.
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*/
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struct text_context {
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const char *path_live; /* Path to file holding live metadata */
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const char *path_edit; /* Path to file holding edited metadata */
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const char *desc; /* Description placed inside file */
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};
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struct format_type *create_text_format(struct cmd_context *cmd);
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struct labeller *text_labeller_create(const struct format_type *fmt);
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int pvhdr_read(struct device *dev, char *buf);
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int add_da(struct dm_pool *mem, struct dm_list *das,
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uint64_t start, uint64_t size);
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void del_das(struct dm_list *das);
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int add_ba(struct dm_pool *mem, struct dm_list *eas,
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uint64_t start, uint64_t size);
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void del_bas(struct dm_list *bas);
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int add_mda(const struct format_type *fmt, struct dm_pool *mem, struct dm_list *mdas,
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struct device *dev, uint64_t start, uint64_t size, unsigned ignored);
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void del_mdas(struct dm_list *mdas);
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/* On disk */
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struct disk_locn {
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uint64_t offset; /* Offset in bytes to start sector */
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uint64_t size; /* Bytes */
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} __attribute__ ((packed));
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/* Data areas (holding PEs) */
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struct data_area_list {
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struct dm_list list;
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struct disk_locn disk_locn;
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};
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#endif
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