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4a624ca055
is active in the device-mapper. o Many operations can be carried out regardless of whether the VG is active or not. o vgscan does not activate anything - use vgchange. o Change lvrename to support renaming of active LVs. o Remove '//' appearing in some pathnames. o Dummy lv_check_segments() for compilation.
154 lines
4.0 KiB
C
154 lines
4.0 KiB
C
/*
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* Copyright (C) 2001 Sistina Software
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*
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* LVM is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* LVM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LVM; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#include "tools.h"
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int vgrename(int argc, char **argv)
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{
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char *dev_dir;
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int length;
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char *vg_name_old, *vg_name_new;
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char old_path[NAME_LEN], new_path[NAME_LEN];
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struct volume_group *vg_old, *vg_new;
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struct list *pvh;
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if (argc != 2) {
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log_error("Old and new volume group names need specifying");
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return EINVALID_CMD_LINE;
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}
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vg_name_old = argv[0];
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vg_name_new = argv[1];
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dev_dir = fid->cmd->dev_dir;
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length = strlen(dev_dir);
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/* If present, strip dev_dir */
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if (!strncmp(vg_name_old, dev_dir, length))
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vg_name_old += length;
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if (!strncmp(vg_name_new, dev_dir, length))
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vg_name_new += length;
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/* Check sanity of new name */
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if (strlen(vg_name_new) > NAME_LEN - length - 2) {
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log_error("New volume group path exceeds maximum length "
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"of %d!", NAME_LEN - length - 2);
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return ECMD_FAILED;
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}
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if (!is_valid_chars(vg_name_new)) {
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log_error("New volume group name %s has invalid characters",
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vg_name_new);
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return ECMD_FAILED;
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}
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if (!strcmp(vg_name_old, vg_name_new)) {
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log_error("Old and new volume group names must differ");
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return ECMD_FAILED;
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}
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log_verbose("Checking for existing volume group %s", vg_name_old);
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if (!(vg_old = fid->ops->vg_read(fid, vg_name_old))) {
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log_error("Volume group %s doesn't exist", vg_name_old);
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return ECMD_FAILED;
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}
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if (lvs_in_vg_activated(vg_old)) {
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log_error("Volume group %s still has active LVs", vg_name_old);
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/***** FIXME Handle this with multiple LV renames!
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if (!force_ARG) {
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log_error("Use -f to force the rename");
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return ECMD_FAILED;
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}
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*****/
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}
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log_verbose("Checking for new volume group %s", vg_name_new);
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if ((vg_new = fid->ops->vg_read(fid, vg_name_new))) {
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log_error("New volume group %s already exists", vg_name_new);
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return ECMD_FAILED;
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}
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if (!archive(vg_old))
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return ECMD_FAILED;
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/* Change the volume group name */
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strcpy(vg_old->name, vg_name_new);
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/* FIXME Should vg_write fix these implicitly? It has to check them. */
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list_iterate(pvh, &vg_old->pvs) {
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strcpy(list_item(pvh, struct pv_list)->pv.vg_name,
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vg_name_new);
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}
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/********** FIXME: Check within vg_write now
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log_error("A new logical volume path exceeds "
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"maximum of %d!", NAME_LEN - 2);
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return ECMD_FAILED;
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*************/
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sprintf(old_path, "%s%s", dev_dir, vg_name_old);
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sprintf(new_path, "%s%s", dev_dir, vg_name_new);
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log_verbose("Renaming %s to %s", old_path, new_path);
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if (rename(old_path, new_path)) {
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log_error("Renaming %s to %s failed: %s",
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old_path, new_path, strerror(errno));
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return ECMD_FAILED;
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}
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/* store it on disks */
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log_verbose("Writing out updated volume group");
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if (!(fid->ops->vg_write(fid, vg_old))) {
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return ECMD_FAILED;
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}
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/******* FIXME Any LV things to update? */
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backup(vg_old);
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log_print("Volume group %s successfully renamed to %s",
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vg_name_old, vg_name_new);
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/* FIXME: Deallocations */
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return 0;
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}
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/* FIXME: Moved into vg_write now */
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/*******************
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char *lv_change_vgname(char *vg_name, char *lv_name)
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{
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char *lv_name_ptr = NULL;
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static char lv_name_buf[NAME_LEN] = { 0, };
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** check if lv_name includes a path
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if ((lv_name_ptr = strrchr(lv_name, '/'))) {
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lv_name_ptr++;
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sprintf(lv_name_buf, "%s%s/%s%c", fid->cmd->dev_dir, vg_name,
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lv_name_ptr, 0);}
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else
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strncpy(lv_name_buf, lv_name, NAME_LEN - 1); return lv_name_buf;}
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**********************/
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