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/*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "tools.h"
static char *_expand_filename(const char *template, const char *vg_name,
char **last_filename)
{
char *filename;
if (security_level())
return dm_strdup(template);
if (!(filename = dm_malloc(PATH_MAX))) {
log_error("Failed to allocate filename.");
return NULL;
}
if (dm_snprintf(filename, PATH_MAX, template, vg_name) < 0) {
log_error("Error processing filename template %s",
template);
dm_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.");
dm_free(filename);
return NULL;
}
dm_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,
void *handle)
{
char **last_filename = (char **)handle;
char *filename;
if (arg_count(cmd, file_ARG)) {
if (!(filename = _expand_filename(arg_value(cmd, file_ARG),
vg->name, last_filename))) {
stack;
return ECMD_FAILED;
}
if (!backup_to_file(filename, vg->cmd->cmd_line, vg)) {
stack;
return ECMD_FAILED;
}
} else {
if (vg_read_error(vg) == FAILED_INCONSISTENT) {
log_error("No backup taken: specify filename with -f "
"to backup an inconsistent VG");
stack;
return ECMD_FAILED;
}
/* just use the normal backup code */
backup_enable(cmd, 1); /* force a backup */
if (!backup(vg)) {
stack;
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;
init_pvmove(1);
ret = process_each_vg(cmd, argc, argv, READ_ALLOW_INCONSISTENT,
&last_filename, &vg_backup_single);
dm_free(last_filename);
init_pvmove(0);
return ret;
}
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