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/*
* 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;
}
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