1  /*
       2   * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
       3   *
       4   * Inspired by libvolume_id by
       5   *     Kay Sievers <kay.sievers@vrfy.org>
       6   *
       7   * This file may be redistributed under the terms of the
       8   * GNU Lesser General Public License.
       9   */
      10  #include <stdio.h>
      11  #include <stdlib.h>
      12  #include <unistd.h>
      13  #include <string.h>
      14  #include <stdint.h>
      15  
      16  #include "superblocks.h"
      17  
      18  struct adaptec_metadata {
      19  
      20  	uint32_t	b0idcode;
      21  	uint8_t		lunsave[8];
      22  	uint16_t	sdtype;
      23  	uint16_t	ssavecyl;
      24  	uint8_t		ssavehed;
      25  	uint8_t		ssavesec;
      26  	uint8_t		sb0flags;
      27  	uint8_t		jbodEnable;
      28  	uint8_t		lundsave;
      29  	uint8_t		svpdirty;
      30  	uint16_t	biosInfo;
      31  	uint16_t	svwbskip;
      32  	uint16_t	svwbcln;
      33  	uint16_t	svwbmax;
      34  	uint16_t	res3;
      35  	uint16_t	svwbmin;
      36  	uint16_t	res4;
      37  	uint16_t	svrcacth;
      38  	uint16_t	svwcacth;
      39  	uint16_t	svwbdly;
      40  	uint8_t		svsdtime;
      41  	uint8_t		res5;
      42  	uint16_t	firmval;
      43  	uint16_t	firmbln;
      44  	uint32_t	firmblk;
      45  	uint32_t	fstrsvrb;
      46  	uint16_t	svBlockStorageTid;
      47  	uint16_t	svtid;
      48  	uint8_t		svseccfl;
      49  	uint8_t		res6;
      50  	uint8_t		svhbanum;
      51  	uint8_t		resver;
      52  	uint32_t	drivemagic;
      53  	uint8_t		reserved[20];
      54  	uint8_t		testnum;
      55  	uint8_t		testflags;
      56  	uint16_t	maxErrorCount;
      57  	uint32_t	count;
      58  	uint32_t	startTime;
      59  	uint32_t	interval;
      60  	uint8_t		tstxt0;
      61  	uint8_t		tstxt1;
      62  	uint8_t		serNum[32];
      63  	uint8_t		res8[102];
      64  	uint32_t	fwTestMagic;
      65  	uint32_t	fwTestSeqNum;
      66  	uint8_t		fwTestRes[8];
      67  	uint32_t	smagic;
      68  	uint32_t	raidtbl;
      69  	uint16_t	raidline;
      70  	uint8_t		res9[0xF6];
      71  } __attribute__((packed));
      72  
      73  #define AD_SIGNATURE	0x4450544D	/* "DPTM" */
      74  #define AD_MAGIC	0x37FC4D1E
      75  
      76  static int probe_adraid(blkid_probe pr,
      77  		const struct blkid_idmag *mag __attribute__((__unused__)))
      78  {
      79  	uint64_t off;
      80  	struct adaptec_metadata *ad;
      81  
      82  	if (pr->size < 0x10000)
      83  		return BLKID_PROBE_NONE;
      84  
      85  	if (!S_ISREG(pr->mode) && !blkid_probe_is_wholedisk(pr))
      86  		return BLKID_PROBE_NONE;
      87  
      88  	off = ((pr->size / 0x200)-1) * 0x200;
      89  	ad = (struct adaptec_metadata *)
      90  			blkid_probe_get_buffer(pr,
      91  					off,
      92  					sizeof(struct adaptec_metadata));
      93  	if (!ad)
      94  		return errno ? -errno : BLKID_PROBE_NONE;
      95  
      96  	if (ad->smagic != be32_to_cpu(AD_SIGNATURE))
      97  		return BLKID_PROBE_NONE;
      98  	if (ad->b0idcode != be32_to_cpu(AD_MAGIC))
      99  		return BLKID_PROBE_NONE;
     100  	if (blkid_probe_sprintf_version(pr, "%u", ad->resver) != 0)
     101  		return BLKID_PROBE_NONE;
     102  	if (blkid_probe_set_magic(pr, off, sizeof(ad->b0idcode),
     103  				(unsigned char *) &ad->b0idcode))
     104  		return BLKID_PROBE_NONE;
     105  
     106  	return BLKID_PROBE_OK;
     107  }
     108  
     109  const struct blkid_idinfo adraid_idinfo = {
     110  	.name		= "adaptec_raid_member",
     111  	.usage		= BLKID_USAGE_RAID,
     112  	.probefunc	= probe_adraid,
     113  	.magics		= BLKID_NONE_MAGIC
     114  };
     115  
     116