1  /*
       2   * Copyright (C) 2009 Mike Hommey <mh@glandium.org>
       3   *
       4   * This file may be redistributed under the terms of the
       5   * GNU Lesser General Public License.
       6   */
       7  #include "superblocks.h"
       8  
       9  struct vmfs_fs_info {
      10  	uint32_t magic;
      11  	uint32_t volume_version;
      12  	uint8_t version;
      13  	uint8_t uuid[16];
      14  	uint32_t mode;
      15  	char label[128];
      16  } __attribute__ ((__packed__));
      17  
      18  struct vmfs_volume_info {
      19  	uint32_t magic;
      20  	uint32_t ver;
      21  	uint8_t irrelevant[122];
      22  	uint8_t uuid[16];
      23  } __attribute__ ((__packed__));
      24  
      25  static int probe_vmfs_fs(blkid_probe pr, const struct blkid_idmag *mag)
      26  {
      27  	struct vmfs_fs_info *header;
      28  
      29  	header = blkid_probe_get_sb(pr, mag, struct vmfs_fs_info);
      30  	if (header == NULL)
      31  		return errno ? -errno : 1;
      32  
      33  	blkid_probe_sprintf_uuid(pr, (unsigned char *) header->uuid, 16,
      34  		"%02x%02x%02x%02x-%02x%02x%02x%02x-"
      35  		"%02x%02x-%02x%02x%02x%02x%02x%02x",
      36  		header->uuid[3], header->uuid[2], header->uuid[1],
      37  		header->uuid[0], header->uuid[7], header->uuid[6],
      38  		header->uuid[5], header->uuid[4], header->uuid[9],
      39  		header->uuid[8], header->uuid[10], header->uuid[11],
      40  		header->uuid[12], header->uuid[13], header->uuid[14],
      41  		header->uuid[15]);
      42  
      43  	blkid_probe_set_label(pr, (unsigned char *) header->label,
      44  					sizeof(header->label));
      45  	blkid_probe_sprintf_version(pr, "%u", header->version);
      46  	return 0;
      47  }
      48  
      49  static int probe_vmfs_volume(blkid_probe pr, const struct blkid_idmag *mag)
      50  {
      51  	struct vmfs_volume_info *header;
      52  	unsigned char *lvm_uuid;
      53  
      54  	header = blkid_probe_get_sb(pr, mag, struct vmfs_volume_info);
      55  	if (header == NULL)
      56  		return errno ? -errno : 1;
      57  
      58  	blkid_probe_sprintf_value(pr, "UUID_SUB",
      59  		"%02x%02x%02x%02x-%02x%02x%02x%02x-"
      60  		"%02x%02x-%02x%02x%02x%02x%02x%02x",
      61  		header->uuid[3], header->uuid[2], header->uuid[1],
      62  		header->uuid[0], header->uuid[7], header->uuid[6],
      63  		header->uuid[5], header->uuid[4], header->uuid[9],
      64  		header->uuid[8], header->uuid[10], header->uuid[11],
      65  		header->uuid[12], header->uuid[13], header->uuid[14],
      66  		header->uuid[15]);
      67  	blkid_probe_sprintf_version(pr, "%u", le32_to_cpu(header->ver));
      68  
      69  	lvm_uuid = blkid_probe_get_buffer(pr,
      70  				1024 * 1024 /* Start of the volume info */
      71  				+ 512 /* Offset to lvm info */
      72  				+ 20 /* Offset in lvm info */, 35);
      73  	if (lvm_uuid)
      74  		blkid_probe_strncpy_uuid(pr, lvm_uuid, 35);
      75  
      76  	return 0;
      77  }
      78  
      79  const struct blkid_idinfo vmfs_fs_idinfo =
      80  {
      81  	.name		= "VMFS",
      82  	.usage		= BLKID_USAGE_FILESYSTEM,
      83  	.probefunc	= probe_vmfs_fs,
      84  	.magics		=
      85  	{
      86  		{ .magic = "\x5e\xf1\xab\x2f", .len = 4, .kboff = 2048 },
      87  		{ NULL }
      88  	}
      89  };
      90  
      91  const struct blkid_idinfo vmfs_volume_idinfo =
      92  {
      93  	.name		= "VMFS_volume_member",
      94  	.usage		= BLKID_USAGE_RAID,
      95  	.probefunc	= probe_vmfs_volume,
      96  	.magics		=
      97  	{
      98  		{ .magic = "\x0d\xd0\x01\xc0", .len = 4, .kboff = 1024 },
      99  		{ NULL }
     100  	}
     101  };