/*

 * Copyright (C) 2008 Karel Zak <kzak@redhat.com>

 *

 * Inspired by libvolume_id by

 *     Kay Sievers <kay.sievers@vrfy.org>

 *

 * This file may be redistributed under the terms of the

 * GNU Lesser General Public License.

 */

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <string.h>

#include <stdint.h>

#include "superblocks.h"

struct lsi_metadata {

  uint8_t   sig[6];

};

#define LSI_SIGNATURE   "$XIDE$"

static int probe_lsiraid(blkid_probe pr,

    const struct blkid_idmag *mag __attribute__((__unused__)))

{

  uint64_t off;

  struct lsi_metadata *lsi;

  if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))

    return 1;

  off = ((pr->size / 0x200) - 1) * 0x200;

  lsi = (struct lsi_metadata *)

    blkid_probe_get_buffer(pr,

        off,

        sizeof(struct lsi_metadata));

  if (!lsi)

    return errno ? -errno : 1;

  if (memcmp(lsi->sig, LSI_SIGNATURE, sizeof(LSI_SIGNATURE)-1) != 0)

    return 1;

  if (blkid_probe_set_magic(pr, off, sizeof(lsi->sig),

        (unsigned char *) lsi->sig))

    return 1;

  return 0;

}

const struct blkid_idinfo lsiraid_idinfo = {

  .name   = "lsi_mega_raid_member",

  .usage    = BLKID_USAGE_RAID,

  .minsz    = 0x10000,

  .probefunc  = probe_lsiraid,

  .magics   = BLKID_NONE_MAGIC

};