mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/*
|
|
* Copyright (C) 2001 Sistina Software (UK) Limited.
|
|
*
|
|
* This file is released under the LGPL.
|
|
*/
|
|
|
|
#include "lib.h"
|
|
#include "metadata.h"
|
|
#include "import-export.h"
|
|
#include "pool.h"
|
|
#include "display.h"
|
|
#include "hash.h"
|
|
#include "toolcontext.h"
|
|
#include "lvmcache.h"
|
|
|
|
/* FIXME Use tidier inclusion method */
|
|
static struct text_vg_version_ops *(_text_vsn_list[2]);
|
|
|
|
struct volume_group *text_vg_import_fd(struct format_instance *fid,
|
|
const char *file,
|
|
struct device *dev,
|
|
off_t offset, uint32_t size,
|
|
off_t offset2, uint32_t size2,
|
|
checksum_fn_t checksum_fn,
|
|
uint32_t checksum,
|
|
time_t *when, char **desc)
|
|
{
|
|
struct volume_group *vg = NULL;
|
|
struct config_tree *cft;
|
|
struct text_vg_version_ops **vsn;
|
|
|
|
static int _initialised = 0;
|
|
|
|
if (!_initialised) {
|
|
_text_vsn_list[0] = text_vg_vsn1_init();
|
|
_text_vsn_list[1] = NULL;
|
|
_initialised = 1;
|
|
}
|
|
|
|
*desc = NULL;
|
|
*when = 0;
|
|
|
|
if (!(cft = create_config_tree())) {
|
|
stack;
|
|
goto out;
|
|
}
|
|
|
|
if ((!dev && !read_config_file(cft, file)) ||
|
|
(dev && !read_config_fd(cft, dev, offset, size,
|
|
offset2, size2, checksum_fn, checksum))) {
|
|
log_error("Couldn't read volume group metadata.");
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Find a set of version functions that can read this file
|
|
*/
|
|
for (vsn = &_text_vsn_list[0]; *vsn; vsn++) {
|
|
if (!(*vsn)->check_version(cft))
|
|
continue;
|
|
|
|
if (!(vg = (*vsn)->read_vg(fid, cft))) {
|
|
stack;
|
|
goto out;
|
|
}
|
|
|
|
(*vsn)->read_desc(fid->fmt->cmd->mem, cft, when, desc);
|
|
break;
|
|
}
|
|
|
|
out:
|
|
destroy_config_tree(cft);
|
|
return vg;
|
|
}
|
|
|
|
struct volume_group *text_vg_import_file(struct format_instance *fid,
|
|
const char *file,
|
|
time_t *when, char **desc)
|
|
{
|
|
return text_vg_import_fd(fid, file, NULL, 0, 0, 0, 0, NULL, 0,
|
|
when, desc);
|
|
}
|