| /* |
| * 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" |
| |
| /* |
| * lvrename command implementation. |
| * Check arguments and call lv_rename() to execute the request. |
| */ |
| 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; |
| struct volume_group *vg; |
| struct lv_list *lvl; |
| uint32_t lockd_state = 0; |
| int r = ECMD_FAILED; |
| |
| if (argc == 3) { |
| vg_name = skip_dev_dir(cmd, argv[0], NULL); |
| 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) - 3; |
| if (strlen(lv_name_new) > maxlen) { |
| log_error("New logical volume name \"%s\" may not exceed %" |
| PRIsize_t " characters.", lv_name_new, maxlen); |
| return EINVALID_CMD_LINE; |
| } |
| |
| if (!*lv_name_new) { |
| log_error("New logical volume name may not be blank"); |
| return EINVALID_CMD_LINE; |
| } |
| |
| if (!apply_lvname_restrictions(lv_name_new)) { |
| stack; |
| return EINVALID_CMD_LINE; |
| } |
| |
| 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; |
| } |
| |
| if (!lockd_vg(cmd, vg_name, "ex", 0, &lockd_state)) |
| return_ECMD_FAILED; |
| |
| log_verbose("Checking for existing volume group \"%s\"", vg_name); |
| vg = vg_read_for_update(cmd, vg_name, NULL, 0, lockd_state); |
| if (vg_read_error(vg)) { |
| release_vg(vg); |
| return_ECMD_FAILED; |
| } |
| |
| 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 bad; |
| } |
| |
| if (lv_is_raid_image(lvl->lv) || lv_is_raid_metadata(lvl->lv)) { |
| log_error("Cannot rename a RAID %s directly", |
| lv_is_raid_image(lvl->lv) ? "image" : |
| "metadata area"); |
| goto bad; |
| } |
| |
| if (lv_is_raid_with_tracking(lvl->lv)) { |
| log_error("Cannot rename %s while it is tracking a split image", |
| lvl->lv->name); |
| goto bad; |
| } |
| |
| if (!lv_rename(cmd, lvl->lv, lv_name_new)) |
| goto_bad; |
| |
| log_print_unless_silent("Renamed \"%s\" to \"%s\" in volume group \"%s\"", |
| lv_name_old, lv_name_new, vg_name); |
| |
| r = ECMD_PROCESSED; |
| bad: |
| unlock_and_release_vg(cmd, vg, vg_name); |
| return r; |
| } |