1
0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-22 17:35:59 +03:00
lvm2/tools/vgrename.c

191 lines
5.1 KiB
C
Raw Normal View History

2001-10-03 21:03:25 +04:00
/*
* Copyright (C) 2001 Sistina Software
*
* LVM is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* LVM is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LVM; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "tools.h"
int vgrename(struct cmd_context *cmd, int argc, char **argv)
2001-10-03 21:03:25 +04:00
{
2001-11-15 20:27:45 +03:00
char *dev_dir;
2001-10-08 22:44:22 +04:00
int length;
char *vg_name_old, *vg_name_new;
char old_path[NAME_LEN], new_path[NAME_LEN];
2001-10-03 21:03:25 +04:00
struct volume_group *vg_old, *vg_new;
2001-10-31 15:47:01 +03:00
struct list *pvh;
2001-10-03 21:03:25 +04:00
if (argc != 2) {
2001-11-27 20:02:24 +03:00
log_error("Old and new volume group names need specifying");
return EINVALID_CMD_LINE;
2001-10-03 21:03:25 +04:00
}
2001-10-08 22:44:22 +04:00
vg_name_old = argv[0];
vg_name_new = argv[1];
2001-10-03 21:03:25 +04:00
dev_dir = cmd->dev_dir;
2001-11-15 20:27:45 +03:00
length = strlen(dev_dir);
2001-10-03 21:03:25 +04:00
2001-11-15 20:27:45 +03:00
/* If present, strip dev_dir */
if (!strncmp(vg_name_old, dev_dir, length))
2001-10-08 22:44:22 +04:00
vg_name_old += length;
2001-11-15 20:27:45 +03:00
if (!strncmp(vg_name_new, dev_dir, length))
2001-10-08 22:44:22 +04:00
vg_name_new += length;
2001-10-03 21:03:25 +04:00
2001-10-08 22:44:22 +04:00
/* Check sanity of new name */
if (strlen(vg_name_new) > NAME_LEN - length - 2) {
log_error("New volume group path exceeds maximum length "
2001-10-03 21:03:25 +04:00
"of %d!", NAME_LEN - length - 2);
return ECMD_FAILED;
2001-10-03 21:03:25 +04:00
}
2001-10-08 22:44:22 +04:00
if (!is_valid_chars(vg_name_new)) {
2002-01-30 18:04:48 +03:00
log_error("New volume group name \"%s\" has invalid characters",
2001-10-08 22:44:22 +04:00
vg_name_new);
return ECMD_FAILED;
2001-10-03 21:03:25 +04:00
}
2001-10-08 22:44:22 +04:00
if (!strcmp(vg_name_old, vg_name_new)) {
log_error("Old and new volume group names must differ");
return ECMD_FAILED;
2001-10-03 21:03:25 +04:00
}
2002-01-30 18:04:48 +03:00
log_verbose("Checking for existing volume group \"%s\"", vg_name_old);
if (!lock_vol(cmd, vg_name_old, LCK_VG | LCK_WRITE)) {
log_error("Can't get lock for %s", vg_name_old);
return ECMD_FAILED;
}
if (!(vg_old = cmd->fid->ops->vg_read(cmd->fid, vg_name_old))) {
2002-01-30 18:04:48 +03:00
log_error("Volume group \"%s\" doesn't exist", vg_name_old);
lock_vol(cmd, vg_name_old, LCK_VG | LCK_NONE);
return ECMD_FAILED;
2001-10-03 21:03:25 +04:00
}
2001-10-08 22:44:22 +04:00
if (vg_old->status & EXPORTED_VG) {
lock_vol(cmd, vg_name_old, LCK_VG | LCK_NONE);
log_error("Volume group \"%s\" is exported", vg_old->name);
return ECMD_FAILED;
}
if (!(vg_old->status & LVM_WRITE)) {
lock_vol(cmd, vg_name_old, LCK_VG | LCK_NONE);
2002-01-30 18:04:48 +03:00
log_error("Volume group \"%s\" is read-only", vg_old->name);
return ECMD_FAILED;
}
if (lvs_in_vg_activated(vg_old)) {
2002-01-30 18:04:48 +03:00
log_error("Volume group \"%s\" still has active LVs",
vg_name_old);
/***** FIXME Handle this with multiple LV renames!
2001-10-08 22:44:22 +04:00
if (!force_ARG) {
log_error("Use -f to force the rename");
lock_vol(cmd, vg_name_old, LCK_VG | LCK_NONE);
2001-10-08 22:44:22 +04:00
return ECMD_FAILED;
}
*****/
2001-10-03 21:03:25 +04:00
}
2002-01-30 18:04:48 +03:00
log_verbose("Checking for new volume group \"%s\"", vg_name_new);
if (!lock_vol(cmd, vg_name_new, LCK_VG | LCK_WRITE | LCK_NONBLOCK)) {
lock_vol(cmd, vg_name_old, LCK_VG | LCK_NONE);
log_error("Can't get lock for %s", vg_name_new);
return ECMD_FAILED;
}
if ((vg_new = cmd->fid->ops->vg_read(cmd->fid, vg_name_new))) {
2002-01-30 18:04:48 +03:00
log_error("New volume group \"%s\" already exists",
vg_name_new);
goto error;
2001-10-03 21:03:25 +04:00
}
2002-01-09 16:17:14 +03:00
if (!archive(vg_old))
goto error;
2002-01-09 16:17:14 +03:00
2001-10-08 22:44:22 +04:00
/* Change the volume group name */
2001-10-03 21:03:25 +04:00
strcpy(vg_old->name, vg_name_new);
2001-10-08 22:44:22 +04:00
/* FIXME Should vg_write fix these implicitly? It has to check them. */
2001-10-31 15:47:01 +03:00
list_iterate(pvh, &vg_old->pvs) {
strcpy(list_item(pvh, struct pv_list)->pv->vg_name,
2001-10-12 01:35:55 +04:00
vg_name_new);
2001-10-08 22:44:22 +04:00
}
2001-10-03 21:03:25 +04:00
2001-10-08 22:44:22 +04:00
/********** FIXME: Check within vg_write now
2001-10-03 21:03:25 +04:00
log_error("A new logical volume path exceeds "
"maximum of %d!", NAME_LEN - 2);
goto error;
2001-10-08 22:44:22 +04:00
*************/
2001-11-15 20:27:45 +03:00
sprintf(old_path, "%s%s", dev_dir, vg_name_old);
sprintf(new_path, "%s%s", dev_dir, vg_name_new);
2001-10-03 21:03:25 +04:00
if (dir_exists(old_path)) {
log_verbose("Renaming \"%s\" to \"%s\"", old_path, new_path);
if (rename(old_path, new_path)) {
log_error("Renaming \"%s\" to \"%s\" failed: %s",
old_path, new_path, strerror(errno));
goto error;
}
2001-10-03 21:03:25 +04:00
}
/* store it on disks */
2001-10-08 22:44:22 +04:00
log_verbose("Writing out updated volume group");
if (!(cmd->fid->ops->vg_write(cmd->fid, vg_old))) {
goto error;
2001-10-03 21:03:25 +04:00
}
/******* FIXME Rename any active LVs! *****/
2002-01-07 14:12:11 +03:00
backup(vg_old);
2001-10-03 21:03:25 +04:00
lock_vol(cmd, vg_name_new, LCK_VG | LCK_NONE);
lock_vol(cmd, vg_name_old, LCK_VG | LCK_NONE);
2002-01-30 18:04:48 +03:00
log_print("Volume group \"%s\" successfully renamed to \"%s\"",
2001-10-03 21:03:25 +04:00
vg_name_old, vg_name_new);
2001-10-08 22:44:22 +04:00
return 0;
error:
lock_vol(cmd, vg_name_new, LCK_VG | LCK_NONE);
lock_vol(cmd, vg_name_old, LCK_VG | LCK_NONE);
return ECMD_FAILED;
2001-10-03 21:03:25 +04:00
}
2001-10-08 22:44:22 +04:00
/* FIXME: Moved into vg_write now */
/*******************
2001-10-03 21:03:25 +04:00
char *lv_change_vgname(char *vg_name, char *lv_name)
{
char *lv_name_ptr = NULL;
static char lv_name_buf[NAME_LEN] = { 0, };
2001-10-08 22:44:22 +04:00
** check if lv_name includes a path
2001-10-03 21:03:25 +04:00
if ((lv_name_ptr = strrchr(lv_name, '/'))) {
2001-10-08 22:44:22 +04:00
lv_name_ptr++;
sprintf(lv_name_buf, "%s%s/%s%c", cmd->dev_dir, vg_name,
2001-10-08 22:44:22 +04:00
lv_name_ptr, 0);}
else
strncpy(lv_name_buf, lv_name, NAME_LEN - 1); return lv_name_buf;}
**********************/