/*

 * Copyright (C) 2009 Mike Hommey <mh@glandium.org>

 *

 * This file may be redistributed under the terms of the

 * GNU Lesser General Public License.

 */

#include "superblocks.h"

struct vmfs_fs_info {

  uint32_t magic;

  uint32_t volume_version;

  uint8_t version;

  uint8_t uuid[16];

  uint32_t mode;

  char label[128];

} __attribute__ ((__packed__));

struct vmfs_volume_info {

  uint32_t magic;

  uint32_t ver;

  uint8_t irrelevant[122];

  uint8_t uuid[16];

} __attribute__ ((__packed__));

static int probe_vmfs_fs(blkid_probe pr, const struct blkid_idmag *mag)

{

  const struct vmfs_fs_info *header;

  header = blkid_probe_get_sb(pr, mag, struct vmfs_fs_info);

  if (header == NULL)

    return errno ? -errno : 1;

  blkid_probe_sprintf_uuid(pr, (unsigned char *) header->uuid, 16,

    "%02x%02x%02x%02x-%02x%02x%02x%02x-"

    "%02x%02x-%02x%02x%02x%02x%02x%02x",

    header->uuid[3], header->uuid[2], header->uuid[1],

    header->uuid[0], header->uuid[7], header->uuid[6],

    header->uuid[5], header->uuid[4], header->uuid[9],

    header->uuid[8], header->uuid[10], header->uuid[11],

    header->uuid[12], header->uuid[13], header->uuid[14],

    header->uuid[15]);

  blkid_probe_set_label(pr, (unsigned char *) header->label,

          sizeof(header->label));

  blkid_probe_sprintf_version(pr, "%u", header->version);

  return 0;

}

static int probe_vmfs_volume(blkid_probe pr, const struct blkid_idmag *mag)

{

  const struct vmfs_volume_info *header;

  const unsigned char *lvm_uuid;

  header = blkid_probe_get_sb(pr, mag, struct vmfs_volume_info);

  if (header == NULL)

    return errno ? -errno : 1;

  blkid_probe_sprintf_value(pr, "UUID_SUB",

    "%02x%02x%02x%02x-%02x%02x%02x%02x-"

    "%02x%02x-%02x%02x%02x%02x%02x%02x",

    header->uuid[3], header->uuid[2], header->uuid[1],

    header->uuid[0], header->uuid[7], header->uuid[6],

    header->uuid[5], header->uuid[4], header->uuid[9],

    header->uuid[8], header->uuid[10], header->uuid[11],

    header->uuid[12], header->uuid[13], header->uuid[14],

    header->uuid[15]);

  blkid_probe_sprintf_version(pr, "%u", le32_to_cpu(header->ver));

  lvm_uuid = blkid_probe_get_buffer(pr,

        1024 * 1024 /* Start of the volume info */

        + 512 /* Offset to lvm info */

        + 20 /* Offset in lvm info */, 35);

  if (lvm_uuid)

    blkid_probe_strncpy_uuid(pr, lvm_uuid, 35);

  return 0;

}

const struct blkid_idinfo vmfs_fs_idinfo =

{

  .name   = "VMFS",

  .usage    = BLKID_USAGE_FILESYSTEM,

  .probefunc  = probe_vmfs_fs,

  .magics   =

  {

    { .magic = "\x5e\xf1\xab\x2f", .len = 4, .kboff = 2048 },

    { NULL }

  }

};

const struct blkid_idinfo vmfs_volume_idinfo =

{

  .name   = "VMFS_volume_member",

  .usage    = BLKID_USAGE_RAID,

  .probefunc  = probe_vmfs_volume,

  .magics   =

  {

    { .magic = "\x0d\xd0\x01\xc0", .len = 4, .kboff = 1024 },

    { NULL }

  }

};