Contents of /tags/mkinitrd-6_2_0/util-linux/volume_id/unused_minix.c
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Sun May 30 11:53:18 2010 UTC (14 years, 4 months ago) by niro
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Sun May 30 11:53:18 2010 UTC (14 years, 4 months ago) by niro
File MIME type: text/plain
File size: 1961 byte(s)
tagged 'mkinitrd-6_2_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 | } |