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78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/*
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* volume_id - reads filesystem label and uuid
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*
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* Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*/
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE 1
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#endif
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <ctype.h>
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#include "libvolume_id.h"
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#include "util.h"
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struct silicon_meta {
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uint8_t unknown0[0x2E];
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uint8_t ascii_version[0x36 - 0x2E];
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uint8_t diskname[0x56 - 0x36];
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uint8_t unknown1[0x60 - 0x56];
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uint32_t magic;
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uint32_t unknown1a[0x6C - 0x64];
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uint32_t array_sectors_low;
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uint32_t array_sectors_high;
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uint8_t unknown2[0x78 - 0x74];
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uint32_t thisdisk_sectors;
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uint8_t unknown3[0x100 - 0x7C];
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uint8_t unknown4[0x104 - 0x100];
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uint16_t product_id;
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uint16_t vendor_id;
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uint16_t minor_ver;
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uint16_t major_ver;
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} PACKED;
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#define SILICON_MAGIC 0x2F000000
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int volume_id_probe_silicon_medley_raid(struct volume_id *id, uint64_t off, uint64_t size)
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{
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const uint8_t *buf;
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uint64_t meta_off;
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struct silicon_meta *sil;
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info("probing at offset 0x%llx, size 0x%llx",
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(unsigned long long) off, (unsigned long long) size);
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if (size < 0x10000)
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return -1;
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meta_off = ((size / 0x200)-1) * 0x200;
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buf = volume_id_get_buffer(id, off + meta_off, 0x200);
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if (buf == NULL)
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return -1;
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sil = (struct silicon_meta *) buf;
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if (le32_to_cpu(sil->magic) != SILICON_MAGIC)
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return -1;
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volume_id_set_usage(id, VOLUME_ID_RAID);
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snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u",
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le16_to_cpu(sil->major_ver), le16_to_cpu(sil->minor_ver));
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id->type = "silicon_medley_raid_member";
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return 0;
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}
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