tests/align-test

   1 #!/bin/bash
   2
   3 CRYPTSETUP="../src/cryptsetup"
   4 DEV=""
   5 DEV_STACKED="luks0xbabe"
   6
   7 cleanup() {
   8         udevadm settle >/dev/null 2>&1
   9         [ -b /dev/mapper/$DEV_STACKED ] && dmsetup remove $DEV_STACKED >/dev/null 2>&1
  10         rmmod scsi_debug 2>/dev/null
  11         sleep 2
  12 }
  13
  14 fail()
  15 {
  16         [ -n "$1" ] && echo "$1"
  17         cleanup
  18         exit 100
  19 }
  20
  21 add_device() {
  22         modprobe scsi_debug $@
  23         if [ $? -ne 0 ] ; then
  24                 echo "This kernel seems to not support proper scsi_debug module, test skipped."
  25                 exit 0
  26         fi
  27
  28         sleep 2
  29         DEV=$(grep scsi_debug /sys/block/*/device/model | cut -f4 -d /)
  30
  31         if [ ! -e /sys/block/$DEV/alignment_offset ] ; then
  32                 echo "This kernel seems to not support topology info, test skipped."
  33                 cleanup
  34                 exit 0
  35         fi
  36
  37         DEV="/dev/$DEV"
  38         [ -b $DEV ] || fail "Cannot find $DEV."
  39 }
  40
  41
  42 format() # key_bits expected [forced]
  43 {
  44         if [ -z "$3" ] ; then
  45                 echo -n "Formatting using topology info ($1 bits key)...."
  46                 echo xxx| $CRYPTSETUP luksFormat $DEV -q -i1 -c aes-cbc-essiv:sha256 -s $1
  47         else
  48                 echo -n "Formatting using forced sector alignment $3 ($1 bits key)..."
  49                 echo xxx| $CRYPTSETUP luksFormat $DEV -q -i1 -s $1 -c aes-cbc-essiv:sha256 --align-payload=$2
  50         fi
  51
  52         ALIGN=$($CRYPTSETUP luksDump $DEV |grep "Payload offset" | sed -e s/.*\\t//)
  53         #echo "ALIGN = $ALIGN"
  54
  55         if [ -z "$ALIGN" ] ; then
  56                 fail "FAIL"
  57         elif [ $ALIGN -ne $2 ] ; then
  58                 echo "FAIL"
  59                 fail "Expected alignment differs: expected $2 != detected $ALIGN"
  60         fi
  61
  62         # test some operation, just in case
  63         echo -e "xxx\naaa" | $CRYPTSETUP luksAddKey $DEV -i1 --key-slot 1
  64         if [ $? -ne 0 ] ; then
  65                 echo "FAIL"
  66                 fail "Keyslot add failed."
  67         fi
  68         $CRYPTSETUP -q luksKillSlot $DEV 1
  69         if [ $? -ne 0 ] ; then
  70                 echo "FAIL"
  71                 fail "Keyslot removal failed."
  72         fi
  73
  74         echo "PASSED"
  75 }
  76
  77 if [ $(id -u) != 0 ]; then
  78         echo "WARNING: You must be root to run this test, test skipped."
  79         exit 0
  80 fi
  81
  82 modprobe --dry-run scsi_debug || exit 0
  83 cleanup
  84
  85 echo "# Create desktop-class 4K drive"
  86 echo "# (logical_block_size=512, physical_block_size=4096, alignment_offset=0)"
  87 add_device dev_size_mb=16 sector_size=512 physblk_exp=3 num_tgts=1
  88 format 256 4096
  89 format 256 2112 8
  90 format 128 2048
  91 format 128 1088 8
  92 format 256 8192 8192
  93 format 128 8192 8192
  94 cleanup
  95
  96 echo "# Create desktop-class 4K drive w/ 63-sector DOS partition compensation"
  97 echo "# (logical_block_size=512, physical_block_size=4096, alignment_offset=3584)"
  98 add_device dev_size_mb=16 sector_size=512 physblk_exp=3 lowest_aligned=7 num_tgts=1
  99 format 256 4103
 100 format 256 2119 8
 101 format 128 2055
 102 format 128 1095 8
 103 cleanup
 104
 105 echo "# Create enterprise-class 4K drive"
 106 echo "# (logical_block_size=4096, physical_block_size=4096, alignment_offset=0)"
 107 add_device dev_size_mb=16 sector_size=4096 num_tgts=1
 108 format 256 4096
 109 format 256 2560 8
 110 format 128 2048
 111 format 128 1536 8
 112 cleanup
 113
 114 echo "# Create classic 512b drive and stack dm-linear"
 115 echo "# (logical_block_size=512, physical_block_size=512, alignment_offset=0)"
 116 add_device dev_size_mb=16 sector_size=512 num_tgts=1
 117 DEV2=$DEV
 118 DEV=/dev/mapper/$DEV_STACKED
 119 dmsetup create $DEV_STACKED --table "0 32768 linear $DEV2 0"
 120 format 256 4096
 121 format 256 2112 8
 122 format 128 2048
 123 format 128 1088 8
 124 format 128 8192 8192
 125 cleanup