util-linux/volume_id/unused_minix.c

/*
 * volume_id - reads filesystem label and uuid
 *
 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
 *
 *	This library is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU Lesser General Public
 *	License as published by the Free Software Foundation; either
 *	version 2.1 of the License, or (at your option) any later version.
 *
 *	This library is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *	Lesser General Public License for more details.
 *
 *	You should have received a copy of the GNU Lesser General Public
 *	License along with this library; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include "volume_id_internal.h"

struct minix_super_block {
	uint16_t	s_ninodes;
	uint16_t	s_nzones;
	uint16_t	s_imap_blocks;
	uint16_t	s_zmap_blocks;
	uint16_t	s_firstdatazone;
	uint16_t	s_log_zone_size;
	uint32_t	s_max_size;
	uint16_t	s_magic;
	uint16_t	s_state;
	uint32_t	s_zones;
} PACKED;

#define MINIX_SUPERBLOCK_OFFSET			0x400

int FAST_FUNC volume_id_probe_minix(struct volume_id *id, uint64_t off)
{
	struct minix_super_block *ms;

	dbg("probing at offset 0x%llx", (unsigned long long) off);

	ms = volume_id_get_buffer(id, off + MINIX_SUPERBLOCK_OFFSET, 0x200);
	if (ms == NULL)
		return -1;

	if (ms->s_magic == cpu_to_le16(0x137f)) {
//		id->type_version[0] = '1';
		goto found;
	}

	if (ms->s_magic == cpu_to_le16(0x1387)) {
//		id->type_version[0] = '1';
		goto found;
	}

	if (ms->s_magic == cpu_to_le16(0x2468)) {
//		id->type_version[0] = '2';
		goto found;
	}

	if (ms->s_magic == cpu_to_le16(0x2478)) {
//		id->type_version[0] = '2';
		goto found;
	}

	return -1;

 found:
//	id->type_version[1] = '\0';
//	volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
//	id->type = "minix";
	return 0;
}
1	/*
2	* volume_id - reads filesystem label and uuid
3	*
4	* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
5	*
6	* This library is free software; you can redistribute it and/or
7	* modify it under the terms of the GNU Lesser General Public
8	* License as published by the Free Software Foundation; either
9	* version 2.1 of the License, or (at your option) any later version.
10	*
11	* This library is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14	* Lesser General Public License for more details.
15	*
16	* You should have received a copy of the GNU Lesser General Public
17	* License along with this library; if not, write to the Free Software
18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19	*/
20
21	#include "volume_id_internal.h"
22
23	struct minix_super_block {
24	uint16_t s_ninodes;
25	uint16_t s_nzones;
26	uint16_t s_imap_blocks;
27	uint16_t s_zmap_blocks;
28	uint16_t s_firstdatazone;
29	uint16_t s_log_zone_size;
30	uint32_t s_max_size;
31	uint16_t s_magic;
32	uint16_t s_state;
33	uint32_t s_zones;
34	} PACKED;
35
36	#define MINIX_SUPERBLOCK_OFFSET 0x400
37
38	int FAST_FUNC volume_id_probe_minix(struct volume_id *id, uint64_t off)
39	{
40	struct minix_super_block *ms;
41
42	dbg("probing at offset 0x%llx", (unsigned long long) off);
43
44	ms = volume_id_get_buffer(id, off + MINIX_SUPERBLOCK_OFFSET, 0x200);
45	if (ms == NULL)
46	return -1;
47
48	if (ms->s_magic == cpu_to_le16(0x137f)) {
49	// id->type_version[0] = '1';
50	goto found;
51	}
52
53	if (ms->s_magic == cpu_to_le16(0x1387)) {
54	// id->type_version[0] = '1';
55	goto found;
56	}
57
58	if (ms->s_magic == cpu_to_le16(0x2468)) {
59	// id->type_version[0] = '2';
60	goto found;
61	}
62
63	if (ms->s_magic == cpu_to_le16(0x2478)) {
64	// id->type_version[0] = '2';
65	goto found;
66	}
67
68	return -1;
69
70	found:
71	// id->type_version[1] = '\0';
72	// volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
73	// id->type = "minix";
74	return 0;
75	}