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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004 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 General Public License v.2.
*
* You should have received a copy of the GNU 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"
#include "lvm-types.h"
int lvrename(struct cmd_context *cmd, int argc, char **argv)
{
size_t maxlen;
char *lv_name_old, *lv_name_new;
const char *vg_name, *vg_name_new, *vg_name_old;
char *st;
int consistent = 1;
struct volume_group *vg;
struct logical_volume *lv;
struct lv_list *lvl;
if (argc == 3) {
vg_name = argv[0];
if (!strncmp(vg_name, cmd->dev_dir, strlen(cmd->dev_dir)))
vg_name += strlen(cmd->dev_dir);
lv_name_old = argv[1];
lv_name_new = argv[2];
if (strchr(lv_name_old, '/') &&
(vg_name_old = extract_vgname(cmd, lv_name_old)) &&
strcmp(vg_name_old, vg_name)) {
log_error("Please use a single volume group name "
"(\"%s\" or \"%s\")", vg_name, vg_name_old);
return EINVALID_CMD_LINE;
}
} else if (argc == 2) {
lv_name_old = argv[0];
lv_name_new = argv[1];
vg_name = extract_vgname(cmd, lv_name_old);
} else {
log_error("Old and new logical volume names required");
return EINVALID_CMD_LINE;
}
if (!validate_name(vg_name)) {
log_error("Please provide a valid volume group name");
return EINVALID_CMD_LINE;
}
if (strchr(lv_name_new, '/') &&
(vg_name_new = extract_vgname(cmd, lv_name_new)) &&
strcmp(vg_name, vg_name_new)) {
log_error("Logical volume names must "
"have the same volume group (\"%s\" or \"%s\")",
vg_name, vg_name_new);
return EINVALID_CMD_LINE;
}
if ((st = strrchr(lv_name_old, '/')))
lv_name_old = st + 1;
if ((st = strrchr(lv_name_new, '/')))
lv_name_new = st + 1;
/* Check sanity of new name */
maxlen = NAME_LEN - strlen(vg_name) - strlen(cmd->dev_dir) - 3;
if (strlen(lv_name_new) > maxlen) {
log_error("New logical volume path exceeds maximum length "
"of %" PRIsize_t "!", maxlen);
return ECMD_FAILED;
}
if (!*lv_name_new) {
log_error("New logical volume name may not be blank");
return ECMD_FAILED;
}
if (!apply_lvname_restrictions(lv_name_new)) {
stack;
return ECMD_FAILED;
}
if (!validate_name(lv_name_new)) {
log_error("New logical volume name \"%s\" is invalid",
lv_name_new);
return EINVALID_CMD_LINE;
}
if (!strcmp(lv_name_old, lv_name_new)) {
log_error("Old and new logical volume names must differ");
return EINVALID_CMD_LINE;
}
log_verbose("Checking for existing volume group \"%s\"", vg_name);
if (!lock_vol(cmd, vg_name, LCK_VG_WRITE)) {
log_error("Can't get lock for %s", vg_name);
return ECMD_FAILED;
}
if (!(vg = vg_read(cmd, vg_name, NULL, &consistent))) {
log_error("Volume group \"%s\" doesn't exist", vg_name);
goto error;
}
if (vg->status & EXPORTED_VG) {
log_error("Volume group \"%s\" is exported", vg->name);
goto error;
}
if (!(vg->status & LVM_WRITE)) {
log_error("Volume group \"%s\" is read-only", vg_name);
goto error;
}
if (find_lv_in_vg(vg, lv_name_new)) {
log_error("Logical volume \"%s\" already exists in "
"volume group \"%s\"", lv_name_new, vg_name);
goto error;
}
if (!(lvl = find_lv_in_vg(vg, lv_name_old))) {
log_error("Existing logical volume \"%s\" not found in "
"volume group \"%s\"", lv_name_old, vg_name);
goto error;
}
lv = lvl->lv;
if (lv->status & LOCKED) {
log_error("Cannot rename locked LV %s", lv->name);
goto error;
}
if (!archive(lv->vg)) {
stack;
goto error;
}
if (!(lv->name = dm_pool_strdup(cmd->mem, lv_name_new))) {
log_error("Failed to allocate space for new name");
goto error;
}
log_verbose("Writing out updated volume group");
if (!vg_write(vg)) {
stack;
goto error;
}
backup(lv->vg);
if (!suspend_lv(cmd, lv)) {
stack;
vg_revert(vg);
goto error;
}
if (!vg_commit(vg)) {
stack;
resume_lv(cmd, lv);
goto error;
}
resume_lv(cmd, lv);
unlock_vg(cmd, vg_name);
log_print("Renamed \"%s\" to \"%s\" in volume group \"%s\"",
lv_name_old, lv_name_new, vg_name);
return ECMD_PROCESSED;
error:
unlock_vg(cmd, vg_name);
return ECMD_FAILED;
}
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