88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
/*
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* Copyright (C) 2008 Karel Zak <kzak@redhat.com>
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*
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* Inspired by libvolume_id by
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* Kay Sievers <kay.sievers@vrfy.org>
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*
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* This file may be redistributed under the terms of the
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* GNU Lesser General Public License.
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*/
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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 <stdint.h>
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#include "superblocks.h"
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struct hpt45x_metadata {
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uint32_t magic;
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};
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#define HPT45X_MAGIC_OK 0x5a7816f3
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#define HPT45X_MAGIC_BAD 0x5a7816fd
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static int probe_highpoint45x(blkid_probe pr,
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const struct blkid_idmag *mag __attribute__((__unused__)))
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{
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struct hpt45x_metadata *hpt;
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uint64_t off;
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uint32_t magic;
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if (pr->size < 0x10000)
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return -1;
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if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
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return -1;
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off = ((pr->size / 0x200) - 11) * 0x200;
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hpt = (struct hpt45x_metadata *)
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blkid_probe_get_buffer(pr,
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off,
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sizeof(struct hpt45x_metadata));
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if (!hpt)
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return -1;
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magic = le32_to_cpu(hpt->magic);
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if (magic != HPT45X_MAGIC_OK && magic != HPT45X_MAGIC_BAD)
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return -1;
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if (blkid_probe_set_magic(pr, off, sizeof(hpt->magic),
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(unsigned char *) &hpt->magic))
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return -1;
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return 0;
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}
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static int probe_highpoint37x(blkid_probe pr,
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const struct blkid_idmag *mag __attribute__((__unused__)))
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{
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if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
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return -1;
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return 0;
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}
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const struct blkid_idinfo highpoint45x_idinfo = {
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.name = "hpt45x_raid_member",
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.usage = BLKID_USAGE_RAID,
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.probefunc = probe_highpoint45x,
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.magics = BLKID_NONE_MAGIC
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};
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const struct blkid_idinfo highpoint37x_idinfo = {
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.name = "hpt37x_raid_member",
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.usage = BLKID_USAGE_RAID,
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.probefunc = probe_highpoint37x,
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.magics = {
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/*
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* Superblok offset: 4608 bytes (9 sectors)
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* Magic string offset within superblock: 32 bytes
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*
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* kboff = (4608 + 32) / 1024
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* sboff = (4608 + 32) % kboff
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*/
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{ .magic = "\xf0\x16\x78\x5a", .len = 4, .kboff = 4, .sboff = 544 },
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{ .magic = "\xfd\x16\x78\x5a", .len = 4, .kboff = 4, .sboff = 544 },
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{ NULL }
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}
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};
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