1*86d7f5d3SJohn Marino /* $NetBSD: lvrename.c,v 1.1.1.2 2009/12/02 00:25:52 haad Exp $ */
2*86d7f5d3SJohn Marino
3*86d7f5d3SJohn Marino /*
4*86d7f5d3SJohn Marino * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
5*86d7f5d3SJohn Marino * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
6*86d7f5d3SJohn Marino *
7*86d7f5d3SJohn Marino * This file is part of LVM2.
8*86d7f5d3SJohn Marino *
9*86d7f5d3SJohn Marino * This copyrighted material is made available to anyone wishing to use,
10*86d7f5d3SJohn Marino * modify, copy, or redistribute it subject to the terms and conditions
11*86d7f5d3SJohn Marino * of the GNU Lesser General Public License v.2.1.
12*86d7f5d3SJohn Marino *
13*86d7f5d3SJohn Marino * You should have received a copy of the GNU Lesser General Public License
14*86d7f5d3SJohn Marino * along with this program; if not, write to the Free Software Foundation,
15*86d7f5d3SJohn Marino * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16*86d7f5d3SJohn Marino */
17*86d7f5d3SJohn Marino
18*86d7f5d3SJohn Marino #include "tools.h"
19*86d7f5d3SJohn Marino #include "lvm-types.h"
20*86d7f5d3SJohn Marino
21*86d7f5d3SJohn Marino
22*86d7f5d3SJohn Marino /*
23*86d7f5d3SJohn Marino * lvrename command implementation.
24*86d7f5d3SJohn Marino * Check arguments and call lv_rename() to execute the request.
25*86d7f5d3SJohn Marino */
lvrename(struct cmd_context * cmd,int argc,char ** argv)26*86d7f5d3SJohn Marino int lvrename(struct cmd_context *cmd, int argc, char **argv)
27*86d7f5d3SJohn Marino {
28*86d7f5d3SJohn Marino size_t maxlen;
29*86d7f5d3SJohn Marino char *lv_name_old, *lv_name_new;
30*86d7f5d3SJohn Marino const char *vg_name, *vg_name_new, *vg_name_old;
31*86d7f5d3SJohn Marino char *st;
32*86d7f5d3SJohn Marino int r = ECMD_FAILED;
33*86d7f5d3SJohn Marino
34*86d7f5d3SJohn Marino struct volume_group *vg = NULL;
35*86d7f5d3SJohn Marino struct lv_list *lvl;
36*86d7f5d3SJohn Marino
37*86d7f5d3SJohn Marino if (argc == 3) {
38*86d7f5d3SJohn Marino vg_name = skip_dev_dir(cmd, argv[0], NULL);
39*86d7f5d3SJohn Marino lv_name_old = argv[1];
40*86d7f5d3SJohn Marino lv_name_new = argv[2];
41*86d7f5d3SJohn Marino if (strchr(lv_name_old, '/') &&
42*86d7f5d3SJohn Marino (vg_name_old = extract_vgname(cmd, lv_name_old)) &&
43*86d7f5d3SJohn Marino strcmp(vg_name_old, vg_name)) {
44*86d7f5d3SJohn Marino log_error("Please use a single volume group name "
45*86d7f5d3SJohn Marino "(\"%s\" or \"%s\")", vg_name, vg_name_old);
46*86d7f5d3SJohn Marino return EINVALID_CMD_LINE;
47*86d7f5d3SJohn Marino }
48*86d7f5d3SJohn Marino } else if (argc == 2) {
49*86d7f5d3SJohn Marino lv_name_old = argv[0];
50*86d7f5d3SJohn Marino lv_name_new = argv[1];
51*86d7f5d3SJohn Marino vg_name = extract_vgname(cmd, lv_name_old);
52*86d7f5d3SJohn Marino } else {
53*86d7f5d3SJohn Marino log_error("Old and new logical volume names required");
54*86d7f5d3SJohn Marino return EINVALID_CMD_LINE;
55*86d7f5d3SJohn Marino }
56*86d7f5d3SJohn Marino
57*86d7f5d3SJohn Marino if (!validate_name(vg_name)) {
58*86d7f5d3SJohn Marino log_error("Please provide a valid volume group name");
59*86d7f5d3SJohn Marino return EINVALID_CMD_LINE;
60*86d7f5d3SJohn Marino }
61*86d7f5d3SJohn Marino
62*86d7f5d3SJohn Marino if (strchr(lv_name_new, '/') &&
63*86d7f5d3SJohn Marino (vg_name_new = extract_vgname(cmd, lv_name_new)) &&
64*86d7f5d3SJohn Marino strcmp(vg_name, vg_name_new)) {
65*86d7f5d3SJohn Marino log_error("Logical volume names must "
66*86d7f5d3SJohn Marino "have the same volume group (\"%s\" or \"%s\")",
67*86d7f5d3SJohn Marino vg_name, vg_name_new);
68*86d7f5d3SJohn Marino return EINVALID_CMD_LINE;
69*86d7f5d3SJohn Marino }
70*86d7f5d3SJohn Marino
71*86d7f5d3SJohn Marino if ((st = strrchr(lv_name_old, '/')))
72*86d7f5d3SJohn Marino lv_name_old = st + 1;
73*86d7f5d3SJohn Marino
74*86d7f5d3SJohn Marino if ((st = strrchr(lv_name_new, '/')))
75*86d7f5d3SJohn Marino lv_name_new = st + 1;
76*86d7f5d3SJohn Marino
77*86d7f5d3SJohn Marino /* Check sanity of new name */
78*86d7f5d3SJohn Marino maxlen = NAME_LEN - strlen(vg_name) - strlen(cmd->dev_dir) - 3;
79*86d7f5d3SJohn Marino if (strlen(lv_name_new) > maxlen) {
80*86d7f5d3SJohn Marino log_error("New logical volume path exceeds maximum length "
81*86d7f5d3SJohn Marino "of %" PRIsize_t "!", maxlen);
82*86d7f5d3SJohn Marino return ECMD_FAILED;
83*86d7f5d3SJohn Marino }
84*86d7f5d3SJohn Marino
85*86d7f5d3SJohn Marino if (!*lv_name_new) {
86*86d7f5d3SJohn Marino log_error("New logical volume name may not be blank");
87*86d7f5d3SJohn Marino return ECMD_FAILED;
88*86d7f5d3SJohn Marino }
89*86d7f5d3SJohn Marino
90*86d7f5d3SJohn Marino if (!apply_lvname_restrictions(lv_name_new)) {
91*86d7f5d3SJohn Marino stack;
92*86d7f5d3SJohn Marino return ECMD_FAILED;
93*86d7f5d3SJohn Marino }
94*86d7f5d3SJohn Marino
95*86d7f5d3SJohn Marino if (!validate_name(lv_name_new)) {
96*86d7f5d3SJohn Marino log_error("New logical volume name \"%s\" is invalid",
97*86d7f5d3SJohn Marino lv_name_new);
98*86d7f5d3SJohn Marino return EINVALID_CMD_LINE;
99*86d7f5d3SJohn Marino }
100*86d7f5d3SJohn Marino
101*86d7f5d3SJohn Marino if (!strcmp(lv_name_old, lv_name_new)) {
102*86d7f5d3SJohn Marino log_error("Old and new logical volume names must differ");
103*86d7f5d3SJohn Marino return EINVALID_CMD_LINE;
104*86d7f5d3SJohn Marino }
105*86d7f5d3SJohn Marino
106*86d7f5d3SJohn Marino log_verbose("Checking for existing volume group \"%s\"", vg_name);
107*86d7f5d3SJohn Marino vg = vg_read_for_update(cmd, vg_name, NULL, 0);
108*86d7f5d3SJohn Marino if (vg_read_error(vg)) {
109*86d7f5d3SJohn Marino vg_release(vg);
110*86d7f5d3SJohn Marino stack;
111*86d7f5d3SJohn Marino return ECMD_FAILED;
112*86d7f5d3SJohn Marino }
113*86d7f5d3SJohn Marino
114*86d7f5d3SJohn Marino if (!(lvl = find_lv_in_vg(vg, lv_name_old))) {
115*86d7f5d3SJohn Marino log_error("Existing logical volume \"%s\" not found in "
116*86d7f5d3SJohn Marino "volume group \"%s\"", lv_name_old, vg_name);
117*86d7f5d3SJohn Marino goto error;
118*86d7f5d3SJohn Marino }
119*86d7f5d3SJohn Marino
120*86d7f5d3SJohn Marino if (!lv_rename(cmd, lvl->lv, lv_name_new))
121*86d7f5d3SJohn Marino goto error;
122*86d7f5d3SJohn Marino
123*86d7f5d3SJohn Marino log_print("Renamed \"%s\" to \"%s\" in volume group \"%s\"",
124*86d7f5d3SJohn Marino lv_name_old, lv_name_new, vg_name);
125*86d7f5d3SJohn Marino
126*86d7f5d3SJohn Marino r = ECMD_PROCESSED;
127*86d7f5d3SJohn Marino error:
128*86d7f5d3SJohn Marino unlock_and_release_vg(cmd, vg, vg_name);
129*86d7f5d3SJohn Marino return r;
130*86d7f5d3SJohn Marino }
131