/*

 * Copyright (C) 2011 by Philipp Marek <philipp.marek@linbit.com>

 *

 * 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 <errno.h>

#include <ctype.h>

#include <inttypes.h>

#include <stddef.h>

#include "superblocks.h"

struct log_header_t {

  uint64_t magic;

  uint64_t version;

  unsigned char uuid[16];

  uint64_t flags;

} __attribute__((packed));

static int probe_drbdproxy_datalog(blkid_probe pr,

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

{

  struct log_header_t *lh;

  lh = (struct log_header_t *) blkid_probe_get_buffer(pr, 0, sizeof(*lh));

  if (!lh)

    return errno ? -errno : 1;

  blkid_probe_set_uuid(pr, lh->uuid);

  blkid_probe_sprintf_version(pr, "v%"PRIu64, le64_to_cpu(lh->version));

  return 0;

}

const struct blkid_idinfo drbdproxy_datalog_idinfo =

{

  .name   = "drbdproxy_datalog",

  .usage    = BLKID_USAGE_FILESYSTEM,

  .probefunc  = probe_drbdproxy_datalog,

  .minsz    = 16*1024,

  .magics   =

  {

    { .magic = "DRBDdlh*", .len = 8, .sboff = 0, .kboff = 0 },

    { NULL }

  }

};