tests/test-ip-filter-anyvsock.sh

   1 #!/usr/bin/env bash
   2 # nbdkit
   3 # Copyright (C) 2020 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
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   8 #
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  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,
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  26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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  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 # Test the ip filter with anyvsock parameter.
  34 #
  35 # This test is only possible on Linux >= 5.6 because that is the first
  36 # version supporting loopback AF_VSOCK (so you can run client and
  37 # server on the same host without needing to use a virtual machine).
  38 #
  39 # It also requires libnbd with nbdinfo, URI and vsock support.
  40
  41 source ./functions.sh
  42 set -e
  43 set -x
  44
  45 requires_nbdinfo
  46 requires nbdsh --version
  47 requires nbdsh -c 'print(h.connect_vsock)'
  48 requires_nbdsh_uri
  49 requires_linux_kernel_version 5.6
  50 requires_vsock_support
  51
  52 # Not supported on Windows.
  53 if is_windows; then
  54     echo "$0: nbdkit-ip-filter anyvsock: not implemented on Windows"
  55     exit 77
  56 fi
  57
  58 # Because vsock ports are 32 bits, we can basically pick one at random
  59 # and be sure that it's not used.  However we must pick one >= 1024
  60 # because the ports below this are privileged.
  61 #port=$(( 1024 + $RANDOM + ($RANDOM << 16) ))
  62 #
  63 # We would do that, but libxml2 is broken, see:
  64 # https://mail.gnome.org/archives/xml/2020-October/msg00001.html
  65 # https://mail.gnome.org/archives/xml/2020-October/msg00002.html
  66 port=$(( 1024 + $RANDOM + ($RANDOM << 11) ))
  67
  68 nbdkit --vsock --port $port -v -D ip.rules=1 \
  69        --filter=ip null allow=anyvsock deny=all \
  70        --run 'nbdinfo "$uri"'
  71
  72 # This is expected to fail.
  73 if nbdkit --vsock --port $port -v -D ip.rules=1 \
  74           --filter=ip null deny=anyvsock \
  75           --run 'nbdinfo "$uri"'; then
  76     echo "$0: expected test to fail"
  77     exit 1
  78 fi
  79
  80 # This tests vsock-cid and is also expected to fail.
  81 if nbdkit --vsock --port $port -v -D ip.rules=1 \
  82           --filter=ip null deny=vsock-cid:1 \
  83           --run 'nbdinfo "$uri"'; then
  84     echo "$0: expected test to fail"
  85     exit 1
  86 fi