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    Annotation of /trunk/mkinitrd-magellan/busybox/util-linux/volume_id/unused_minix.c

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    Revision 816 - (hide annotations) (download)
    Fri Apr 24 18:33:46 2009 UTC (15 years, 1 month ago) by niro
    File MIME type: text/plain
    File size: 1972 byte(s) 
    -updated to busybox-1.13.4
    1 niro 816 /*
    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     } __attribute__((__packed__));
    35    
    36     #define MINIX_SUPERBLOCK_OFFSET 0x400
    37    
    38     int 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     }