shlibs/blkid/src/probers/adaptec_raid.c

   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 "blkidP.h"
  17
  18 struct adaptec_metadata {
  19         uint32_t        b0idcode;
  20         uint8_t         lunsave[8];
  21         uint16_t        sdtype;
  22         uint16_t        ssavecyl;
  23         uint8_t         ssavehed;
  24         uint8_t         ssavesec;
  25         uint8_t         sb0flags;
  26         uint8_t         jbodEnable;
  27         uint8_t         lundsave;
  28         uint8_t         svpdirty;
  29         uint16_t        biosInfo;
  30         uint16_t        svwbskip;
  31         uint16_t        svwbcln;
  32         uint16_t        svwbmax;
  33         uint16_t        res3;
  34         uint16_t        svwbmin;
  35         uint16_t        res4;
  36         uint16_t        svrcacth;
  37         uint16_t        svwcacth;
  38         uint16_t        svwbdly;
  39         uint8_t         svsdtime;
  40         uint8_t         res5;
  41         uint16_t        firmval;
  42         uint16_t        firmbln;
  43         uint32_t        firmblk;
  44         uint32_t        fstrsvrb;
  45         uint16_t        svBlockStorageTid;
  46         uint16_t        svtid;
  47         uint8_t         svseccfl;
  48         uint8_t         res6;
  49         uint8_t         svhbanum;
  50         uint8_t         resver;
  51         uint32_t        drivemagic;
  52         uint8_t         reserved[20];
  53         uint8_t         testnum;
  54         uint8_t         testflags;
  55         uint16_t        maxErrorCount;
  56         uint32_t        count;
  57         uint32_t        startTime;
  58         uint32_t        interval;
  59         uint8_t         tstxt0;
  60         uint8_t         tstxt1;
  61         uint8_t         serNum[32];
  62         uint8_t         res8[102];
  63         uint32_t        fwTestMagic;
  64         uint32_t        fwTestSeqNum;
  65         uint8_t         fwTestRes[8];
  66         uint8_t         smagic[4];
  67         uint32_t        raidtbl;
  68         uint16_t        raidline;
  69         uint8_t         res9[0xF6];
  70 } __attribute__((packed));
  71
  72 #define AD_SIGNATURE    "DPTM"
  73 #define AD_MAGIC        0x37FC4D1E
  74
  75 static int probe_adraid(blkid_probe pr, const struct blkid_idmag *mag)
  76 {
  77         uint64_t off;
  78         struct adaptec_metadata *ad;
  79
  80         if (pr->size < 0x10000)
  81                 return -1;
  82
  83         off = ((pr->size / 0x200)-1) * 0x200;
  84         ad = (struct adaptec_metadata *)
  85                         blkid_probe_get_buffer(pr,
  86                                         off,
  87                                         sizeof(struct adaptec_metadata));
  88         if (!ad)
  89                 return -1;
  90         if (memcmp(ad->smagic, AD_SIGNATURE, sizeof(AD_SIGNATURE)) != 0)
  91                 return -1;
  92         if (ad->b0idcode != be32_to_cpu(AD_MAGIC))
  93                 return -1;
  94         if (blkid_probe_sprintf_version(pr, "%u", ad->resver) != 0)
  95                 return -1;
  96
  97         return 0;
  98 }
  99
 100 const struct blkid_idinfo adraid_idinfo = {
 101         .name           = "adaptec_raid_member",
 102         .usage          = BLKID_USAGE_RAID,
 103         .probefunc      = probe_adraid,
 104         .magics         = BLKID_NONE_MAGIC
 105 };
 106
 107