mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
124 lines
3.2 KiB
C
124 lines
3.2 KiB
C
/*
|
|
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
|
|
* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This file is part of LVM2.
|
|
*
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
|
* of the GNU Lesser General Public License v.2.1.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "tools.h"
|
|
|
|
static char *_expand_filename(const char *template, const char *vg_name,
|
|
char **last_filename)
|
|
{
|
|
char *filename;
|
|
|
|
if (security_level()) {
|
|
if (!(filename = strdup(template))) {
|
|
log_error("Failed to allocate filename.");
|
|
return NULL;
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
if (!(filename = malloc(PATH_MAX))) {
|
|
log_error("Failed to allocate filename.");
|
|
return NULL;
|
|
}
|
|
|
|
/* coverity[non_const_printf_format_string] */
|
|
if (dm_snprintf(filename, PATH_MAX, template, vg_name) < 0) {
|
|
log_error("Error processing filename template %s",
|
|
template);
|
|
free(filename);
|
|
return NULL;
|
|
}
|
|
if (*last_filename && !strncmp(*last_filename, filename, PATH_MAX)) {
|
|
log_error("VGs must be backed up into different files. "
|
|
"Use %%s in filename for VG name.");
|
|
free(filename);
|
|
return NULL;
|
|
}
|
|
out:
|
|
free(*last_filename);
|
|
*last_filename = filename;
|
|
|
|
return filename;
|
|
}
|
|
|
|
static int _vg_backup_single(struct cmd_context *cmd, const char *vg_name,
|
|
struct volume_group *vg,
|
|
struct processing_handle *handle)
|
|
{
|
|
char **last_filename = (char **)handle->custom_handle;
|
|
char *filename;
|
|
|
|
if (arg_is_set(cmd, file_ARG)) {
|
|
if (!(filename = _expand_filename(arg_value(cmd, file_ARG),
|
|
vg->name, last_filename)))
|
|
return_ECMD_FAILED;
|
|
|
|
if (!backup_to_file(filename, vg->cmd->cmd_line, vg))
|
|
return_ECMD_FAILED;
|
|
} else {
|
|
if (vg_missing_pv_count(vg)) {
|
|
log_error("No backup taken: specify filename with -f to backup with missing PVs.");
|
|
return ECMD_FAILED;
|
|
}
|
|
if (vg_has_unknown_segments(vg)) {
|
|
log_error("No backup taken: specify filename with -f to backup with unknown segments.");
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
/* just use the normal backup code */
|
|
backup_enable(cmd, 1); /* force a backup */
|
|
if (!backup(vg))
|
|
return_ECMD_FAILED;
|
|
}
|
|
|
|
log_print_unless_silent("Volume group \"%s\" successfully backed up.", vg_name);
|
|
|
|
return ECMD_PROCESSED;
|
|
}
|
|
|
|
int vgcfgbackup(struct cmd_context *cmd, int argc, char **argv)
|
|
{
|
|
int ret;
|
|
char *last_filename = NULL;
|
|
struct processing_handle *handle = NULL;
|
|
|
|
if (!(handle = init_processing_handle(cmd, NULL))) {
|
|
log_error("Failed to initialize processing handle.");
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
handle->custom_handle = &last_filename;
|
|
|
|
/*
|
|
* Just set so that we can do the check ourselves above and
|
|
* report a helpful error message in place of the error message
|
|
* that would be generated from vg_read.
|
|
*/
|
|
cmd->handles_missing_pvs = 1;
|
|
cmd->handles_unknown_segments = 1;
|
|
|
|
init_pvmove(1);
|
|
|
|
ret = process_each_vg(cmd, argc, argv, NULL, NULL, 0, 0,
|
|
handle, &_vg_backup_single);
|
|
|
|
free(last_filename);
|
|
|
|
init_pvmove(0);
|
|
|
|
destroy_processing_handle(cmd, handle);
|
|
return ret;
|
|
}
|