tests/test-blocksize-error-policy.sh

   1 #!/usr/bin/env bash
   2 # nbdkit
   3 # Copyright (C) 2019-2022 Red Hat Inc.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are
   7 # met:
   8 #
   9 # * Redistributions of source code must retain the above copyright
  10 # notice, this list of conditions and the following disclaimer.
  11 #
  12 # * Redistributions in binary form must reproduce the above copyright
  13 # notice, this list of conditions and the following disclaimer in the
  14 # documentation and/or other materials provided with the distribution.
  15 #
  16 # * Neither the name of Red Hat nor the names of its contributors may be
  17 # used to endorse or promote products derived from this software without
  18 # specific prior written permission.
  19 #
  20 # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
  21 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  23 # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
  24 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  27 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  28 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  29 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  30 # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31 # SUCH DAMAGE.
  32
  33 source ./functions.sh
  34 set -e
  35 set -x
  36
  37 requires_plugin eval
  38 requires nbdsh -c 'print(h.get_block_size)'
  39 requires nbdsh -c 'print(h.get_strict_mode)'
  40 requires dd iflag=count_bytes </dev/null
  41
  42 nbdkit -v -U - eval \
  43        block_size="echo 512 4096 1M" \
  44        get_size="echo 64M" \
  45        pread=" dd if=/dev/zero count=\$3 iflag=count_bytes " \
  46        --filter=blocksize-policy \
  47        blocksize-error-policy=error \
  48        --run '
  49 nbdsh \
  50     -u "$uri" \
  51     -c "assert h.get_block_size(nbd.SIZE_MINIMUM) == 512" \
  52     -c "assert h.get_block_size(nbd.SIZE_PREFERRED) == 4096" \
  53     -c "assert h.get_block_size(nbd.SIZE_MAXIMUM) == 1024 * 1024" \
  54     -c "h.set_strict_mode(h.get_strict_mode() & ~nbd.STRICT_ALIGN)" \
  55     -c "
  56 # These requests should work
  57 b = h.pread(512, 0)
  58 b = h.pread(512, 4096)
  59 b = h.pread(1024*1024, 0)
  60 " \
  61     -c "
  62 # Count not a multiple of minimum size
  63 try:
  64     h.pread(768, 0)
  65     assert False
  66 except nbd.Error as ex:
  67     assert ex.errno == \"EINVAL\"
  68 " \
  69     -c "
  70 # Offset not a multiple of minimum size
  71 try:
  72     h.pread(512, 768)
  73     assert False
  74 except nbd.Error as ex:
  75     assert ex.errno == \"EINVAL\"
  76 " \
  77     -c "
  78 # Count smaller than minimum size
  79 try:
  80     h.pread(256, 0)
  81     assert False
  82 except nbd.Error as ex:
  83     assert ex.errno == \"EINVAL\"
  84 " \
  85     -c "
  86 # Count larger than maximum size
  87 try:
  88     h.pread(2*1024*1024, 0)
  89     assert False
  90 except nbd.Error as ex:
  91     assert ex.errno == \"EINVAL\"
  92 "
  93 '