1/*-
2 * Copyright (c) 2004 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#if HAVE_NBTOOL_CONFIG_H
28#include "nbtool_config.h"
29#endif
30
31#include <sys/cdefs.h>
32#ifdef __FBSDID
33__FBSDID("$FreeBSD: src/sbin/gpt/remove.c,v 1.10 2006/10/04 18:20:25 marcel Exp $");
34#endif
35#ifdef __RCSID
36__RCSID("$NetBSD: uuid.c,v 1.1 2019/06/25 04:53:40 jnemeth Exp $");
37#endif
38
39#include <sys/types.h>
40
41#include <err.h>
42#include <stddef.h>
43#include <stdio.h>
44#include <stdlib.h>
45#include <string.h>
46#include <unistd.h>
47
48#include "map.h"
49#include "gpt.h"
50#include "gpt_private.h"
51
52static int cmd_uuid(gpt_t, int, char *[]);
53
54static const char *uuidhelp[] = {
55	"-a",
56	"[-b blocknr] [-i index] [-L label] [-s sectors] [-t type]",
57};
58
59struct gpt_cmd c_uuid = {
60	"uuid",
61	cmd_uuid,
62	uuidhelp, __arraycount(uuidhelp),
63	GPT_SYNC,
64};
65
66#define usage() gpt_usage(NULL, &c_uuid)
67
68static void
69change_ent(struct gpt_ent *ent, void *v, int backup)
70{
71	static gpt_uuid_t uuidstore;
72
73	if (!backup)
74		gpt_uuid_generate(NULL, uuidstore);
75	memmove(ent->ent_guid, uuidstore, sizeof(ent->ent_guid));
76}
77
78static void
79change_hdr(struct gpt_hdr *hdr, void *v, int backup)
80{
81	static gpt_uuid_t uuidstore;
82
83	if (!backup)
84		gpt_uuid_generate(NULL, uuidstore);
85	memmove(hdr->hdr_guid, uuidstore, sizeof(hdr->hdr_guid));
86}
87
88static int
89cmd_uuid(gpt_t gpt, int argc, char *argv[])
90{
91	int ch, rc;
92	struct gpt_find find;
93
94	memset(&find, 0, sizeof(find));
95	find.msg = "UUID changed";
96
97	/* Get the uuid options */
98	while ((ch = getopt(argc, argv, GPT_FIND)) != -1) {
99		if (gpt == NULL || gpt_add_find(gpt, &find, ch) == -1)
100			return usage();
101	}
102
103	if (gpt == NULL || argc != optind)
104		return usage();
105
106	rc = gpt_change_ent(gpt, &find, change_ent, NULL);
107	if (rc != 0)
108		return rc;
109
110	if (find.all)
111		return gpt_change_hdr(gpt, &find, change_hdr, NULL);
112
113	return 0;
114}
115