tests/test-ip-filter-pid.sh

   1 #!/usr/bin/env bash
   2 # nbdkit
   3 # Copyright (C) 2020 Red Hat Inc.
   4 #
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  20 # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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  23 # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
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  31 # SUCH DAMAGE.
  32
  33 # Test the ip filter with pid: parameter.
  34
  35 source ./functions.sh
  36 set -e
  37 set -x
  38
  39 requires nbdinfo --version
  40 requires nbdsh --version
  41 requires_nbdsh_uri
  42 # This requires Linux.
  43 requires_linux_kernel_version 2.6
  44
  45 # This is expected to fail because the shell ($$) is not connecting to
  46 # the server.
  47 if nbdkit -U - -v -D ip.rules=1 --filter=ip null allow=pid:$$ deny=all \
  48           --run 'nbdinfo --size "$uri"'; then
  49     echo "$0: expected test to fail"
  50     exit 1
  51 fi
  52
  53 # This is expected to work because we can deny the shell.
  54 nbdkit -U - -v -D ip.rules=1 --filter=ip null deny=pid:$$ \
  55        --run 'nbdinfo --size "$uri"'
  56
  57 # This is a better test using nbdsh and passing the PID of nbdsh
  58 # itself to nbdkit.  Note this only works because nbd_connect_command
  59 # uses a socketpair which is a kind of nameless Unix domain socket.
  60 nbdsh -c - <<'EOF'
  61 import os
  62
  63 h.connect_command(["nbdkit", "-s",
  64                    "-v", "-D", "ip.rules=1",
  65                    "null", "size=512",
  66                    "--filter=ip",
  67                    "allow=pid:" + str(os.getpid()),
  68                    "deny=all"])
  69 assert h.get_size() == 512
  70 EOF