contrib/cryptsetup/tests/align-test

   1 #!/bin/bash
   2
   3 CRYPTSETUP="../src/cryptsetup"
   4 DEV=""
   5
   6 cleanup() {
   7         udevadm settle 2>/dev/null 2>&1
   8         rmmod scsi_debug 2>/dev/null
   9         sleep 2
  10 }
  11
  12 fail()
  13 {
  14         [ -n "$1" ] && echo "$1"
  15         cleanup
  16         exit 100
  17 }
  18
  19 add_device() {
  20         modprobe scsi_debug $@
  21         if [ $? -ne 0 ] ; then
  22                 echo "This kernel seems to not support proper scsi_debug module, test skipped."
  23                 exit 0
  24         fi
  25
  26         sleep 2
  27         DEV=$(grep scsi_debug /sys/block/*/device/model | cut -f4 -d /)
  28
  29         if [ ! -e /sys/block/$DEV/alignment_offset ] ; then
  30                 echo "This kernel seems to not support topology info, test skipped."
  31                 cleanup
  32                 exit 0
  33         fi
  34
  35         DEV="/dev/$DEV"
  36         [ -b $DEV ] || fail "Cannot find $DEV."
  37 }
  38
  39
  40 format() # key_bits expected [forced]
  41 {
  42         if [ -z "$3" ] ; then
  43                 echo -n "Formatting using topology info ($1 bits key)...."
  44                 echo xxx| $CRYPTSETUP luksFormat $DEV -q -s $1
  45         else
  46                 echo -n "Formatting using forced offset $3 ($1 bits key)..."
  47                 echo xxx| $CRYPTSETUP luksFormat $DEV -q -s $1 --align-payload=$2
  48         fi
  49
  50         ALIGN=$($CRYPTSETUP luksDump $DEV |grep "Payload offset" | sed -e s/.*\\t//)
  51         #echo "ALIGN = $ALIGN"
  52
  53         if [ $ALIGN -ne $2 ] ; then
  54                 echo "FAIL"
  55                 echo "Expected alignment differs: expected $2 != detected $ALIGN"
  56                 fail
  57         fi
  58         echo "PASSED"
  59 }
  60
  61 if [ $(id -u) != 0 ]; then
  62         echo "WARNING: You must be root to run this test, test skipped."
  63         exit 0
  64 fi
  65
  66 modprobe --dry-run scsi_debug || exit 0
  67 cleanup
  68
  69 echo "# Create desktop-class 4K drive"
  70 echo "# (logical_block_size=512, physical_block_size=4096, alignment_offset=0)"
  71 add_device dev_size_mb=16 sector_size=512 physblk_exp=3 num_tgts=1
  72 format 256 2112
  73 format 128 1088
  74 format 256 8192 8192
  75 format 128 8192 8192
  76 cleanup
  77
  78 echo "# Create desktop-class 4K drive w/ 63-sector DOS partition compensation"
  79 echo "# (logical_block_size=512, physical_block_size=4096, alignment_offset=3584)"
  80 add_device dev_size_mb=16 sector_size=512 physblk_exp=3 lowest_aligned=7 num_tgts=1
  81 format 256 2119
  82 format 128 1095
  83 cleanup
  84
  85 echo "# Create enterprise-class 4K drive"
  86 echo "# (logical_block_size=4096, physical_block_size=4096, alignment_offset=0)"
  87 add_device dev_size_mb=16 sector_size=4096 num_tgts=1
  88 format 256 2560
  89 format 128 1536
  90 cleanup
  91
  92 echo "# Create classic 512b drive and stack dm-linear"
  93 echo "# (logical_block_size=512, physical_block_size=512, alignment_offset=0)"
  94 add_device dev_size_mb=16 sector_size=512 num_tgts=1
  95 DEV2=$DEV
  96 DEV=/dev/mapper/luks0xbabe
  97 dmsetup create luks0xbabe --table "0 32768 linear $DEV2 0"
  98 format 256 2112
  99 format 128 1088
 100 format 128 8192 8192
 101 dmsetup remove luks0xbabe
 102 cleanup