Annotation of /trunk/mkinitrd-magellan/busybox/util-linux/volume_id/jfs.c
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
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Sun May 30 11:32:42 2010 UTC (13 years, 11 months ago) by niro
File MIME type: text/plain
File size: 1726 byte(s)
-updated to busybox-1.16.1 and enabled blkid/uuid support in default config
1 | niro | 816 | /* |
2 | * volume_id - reads filesystem label and uuid | ||
3 | * | ||
4 | * Copyright (C) 2004 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 jfs_super_block { | ||
24 | uint8_t magic[4]; | ||
25 | uint32_t version; | ||
26 | uint64_t size; | ||
27 | uint32_t bsize; | ||
28 | uint32_t dummy1; | ||
29 | uint32_t pbsize; | ||
30 | uint32_t dummy2[27]; | ||
31 | uint8_t uuid[16]; | ||
32 | uint8_t label[16]; | ||
33 | uint8_t loguuid[16]; | ||
34 | niro | 984 | } PACKED; |
35 | niro | 816 | |
36 | #define JFS_SUPERBLOCK_OFFSET 0x8000 | ||
37 | |||
38 | niro | 984 | int FAST_FUNC volume_id_probe_jfs(struct volume_id *id /*,uint64_t off*/) |
39 | niro | 816 | { |
40 | niro | 984 | #define off ((uint64_t)0) |
41 | niro | 816 | struct jfs_super_block *js; |
42 | |||
43 | dbg("probing at offset 0x%llx", (unsigned long long) off); | ||
44 | |||
45 | js = volume_id_get_buffer(id, off + JFS_SUPERBLOCK_OFFSET, 0x200); | ||
46 | if (js == NULL) | ||
47 | return -1; | ||
48 | |||
49 | if (memcmp(js->magic, "JFS1", 4) != 0) | ||
50 | return -1; | ||
51 | |||
52 | // volume_id_set_label_raw(id, js->label, 16); | ||
53 | volume_id_set_label_string(id, js->label, 16); | ||
54 | volume_id_set_uuid(id, js->uuid, UUID_DCE); | ||
55 | |||
56 | // volume_id_set_usage(id, VOLUME_ID_FILESYSTEM); | ||
57 | // id->type = "jfs"; | ||
58 | |||
59 | return 0; | ||
60 | } |