Annotation of /trunk/hal/patches/hal-0.5.7.1-ipod-nano.patch
Parent Directory | Revision Log
Revision 144 -
(hide annotations)
(download)
Tue May 8 20:06:05 2007 UTC (17 years, 4 months ago) by niro
File size: 1411 byte(s)
Tue May 8 20:06:05 2007 UTC (17 years, 4 months ago) by niro
File size: 1411 byte(s)
-import
1 | niro | 144 | --- hal-0.5.7.1/volume_id/via_raid.c 2006-02-21 20:15:17.000000000 +0100 |
2 | +++ hal-0.5.7.1/volume_id/via_raid.c-new 2006-12-16 17:48:31.000000000 +0100 | ||
3 | @@ -3,6 +3,9 @@ | ||
4 | * | ||
5 | * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org> | ||
6 | * | ||
7 | + * Based on information taken from dmraid: | ||
8 | + * Copyright (C) 2004-2006 Heinz Mauelshagen, Red Hat GmbH | ||
9 | + * | ||
10 | * This program is free software; you can redistribute it and/or modify it | ||
11 | * under the terms of the GNU General Public License as published by the | ||
12 | * Free Software Foundation version 2 of the License. | ||
13 | @@ -31,7 +34,7 @@ | ||
14 | uint16_t signature; | ||
15 | uint8_t version_number; | ||
16 | struct via_array { | ||
17 | - uint16_t disk_bits; | ||
18 | + uint16_t disk_bit_mask; | ||
19 | uint8_t disk_array_ex; | ||
20 | uint32_t capacity_low; | ||
21 | uint32_t capacity_high; | ||
22 | @@ -43,6 +46,17 @@ | ||
23 | |||
24 | #define VIA_SIGNATURE 0xAA55 | ||
25 | |||
26 | +/* 8 bit checksum on first 50 bytes of metadata. */ | ||
27 | +static uint8_t meta_checksum(struct via_meta *via) | ||
28 | +{ | ||
29 | + uint8_t i = 50, sum = 0; | ||
30 | + | ||
31 | + while (i--) | ||
32 | + sum += ((uint8_t*) via)[i]; | ||
33 | + | ||
34 | + return sum == via->checksum; | ||
35 | +} | ||
36 | + | ||
37 | int volume_id_probe_via_raid(struct volume_id *id, uint64_t off, uint64_t size) | ||
38 | { | ||
39 | const uint8_t *buf; | ||
40 | @@ -68,6 +82,9 @@ | ||
41 | if (via->version_number > 1) | ||
42 | return -1; | ||
43 | |||
44 | + if (!meta_checksum(via)) | ||
45 | + return -1; | ||
46 | + | ||
47 | volume_id_set_usage(id, VOLUME_ID_RAID); | ||
48 | snprintf(id->type_version, sizeof(id->type_version)-1, "%u", via->version_number); | ||
49 | id->type = "via_raid_member"; |