Annotation of /trunk/mkinitrd-magellan/busybox/util-linux/volume_id/unused_promise_raid.c
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Revision 984 -
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Sun May 30 11:32:42 2010 UTC (14 years ago) by niro
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File size: 1800 byte(s)
Sun May 30 11:32:42 2010 UTC (14 years ago) by niro
File MIME type: text/plain
File size: 1800 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) 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 promise_meta { | ||
24 | uint8_t sig[24]; | ||
25 | niro | 984 | } PACKED; |
26 | niro | 816 | |
27 | #define PDC_CONFIG_OFF 0x1200 | ||
28 | #define PDC_SIGNATURE "Promise Technology, Inc." | ||
29 | |||
30 | niro | 984 | int FAST_FUNC volume_id_probe_promise_fasttrack_raid(struct volume_id *id, uint64_t off, uint64_t size) |
31 | niro | 816 | { |
32 | static const unsigned short sectors[] = { | ||
33 | 63, 255, 256, 16, 399 | ||
34 | }; | ||
35 | |||
36 | struct promise_meta *pdc; | ||
37 | unsigned i; | ||
38 | |||
39 | dbg("probing at offset 0x%llx, size 0x%llx", | ||
40 | (unsigned long long) off, (unsigned long long) size); | ||
41 | |||
42 | if (size < 0x40000) | ||
43 | return -1; | ||
44 | |||
45 | for (i = 0; i < ARRAY_SIZE(sectors); i++) { | ||
46 | uint64_t meta_off; | ||
47 | |||
48 | meta_off = ((size / 0x200) - sectors[i]) * 0x200; | ||
49 | pdc = volume_id_get_buffer(id, off + meta_off, 0x200); | ||
50 | if (pdc == NULL) | ||
51 | return -1; | ||
52 | |||
53 | if (memcmp(pdc->sig, PDC_SIGNATURE, sizeof(PDC_SIGNATURE)-1) == 0) | ||
54 | goto found; | ||
55 | } | ||
56 | return -1; | ||
57 | |||
58 | found: | ||
59 | // volume_id_set_usage(id, VOLUME_ID_RAID); | ||
60 | // id->type = "promise_fasttrack_raid_member"; | ||
61 | |||
62 | return 0; | ||
63 | } |