/* $NetBSD: lvrename.c,v 1.1.1.2 2009/12/02 00:25:52 haad Exp $ */ /* * 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" #include "lvm-types.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; int r = ECMD_FAILED; struct volume_group *vg = NULL; struct lv_list *lvl; 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) - 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); vg = vg_read_for_update(cmd, vg_name, NULL, 0); if (vg_read_error(vg)) { vg_release(vg); stack; 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 error; } if (!lv_rename(cmd, lvl->lv, lv_name_new)) goto error; log_print("Renamed \"%s\" to \"%s\" in volume group \"%s\"", lv_name_old, lv_name_new, vg_name); r = ECMD_PROCESSED; error: unlock_and_release_vg(cmd, vg, vg_name); return r; }