tests/align-test

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