tools/test-captures.sh

   1 #!/bin/bash
   2
   3 # A little script to run tshark on capture file[s] (potentially ones that
   4 # failed fuzz testing). Useful because it sets up ulimits and other environment
   5 # variables for you to ensure things like misused ephemeral memory are caught.
   6 # (I'm writing this after having my machine hang up for like 15 minutes because
   7 # I wasn't paying attention while tshark was running on a fuzzed capture and
   8 # it used all my RAM + swap--which was pretty painful.)
   9 #
  10 # Copyright 2012 Jeff Morriss <jeff.morriss.ws [AT] gmail.com>
  11 #
  12 # Wireshark - Network traffic analyzer
  13 # By Gerald Combs <gerald@wireshark.org>
  14 # Copyright 1998 Gerald Combs
  15 #
  16 # SPDX-License-Identifier: GPL-2.0-or-later
  17
  18 TEST_TYPE="manual"
  19 # shellcheck source=tools/test-common.sh
  20 . "$( dirname "$0" )"/test-common.sh || exit 1
  21
  22 # Run under AddressSanitizer ?
  23 ASAN=$CONFIGURED_WITH_ASAN
  24
  25 while getopts "ab:" OPTCHAR ; do
  26     case $OPTCHAR in
  27         a) ASAN=1 ;;
  28         b) WIRESHARK_BIN_DIR=$OPTARG ;;
  29         *) printf "Unknown option: %s\\n" "$OPTARG"
  30     esac
  31 done
  32 shift $(( OPTIND - 1 ))
  33
  34 if [ $# -lt 1 ]
  35 then
  36         printf "Usage: %s [-b bin_dir] /path/to/file[s].pcap\\n" "$( basename "$0" )"
  37         exit 1
  38 fi
  39
  40 ws_bind_exec_paths
  41 ws_check_exec "$TSHARK"
  42
  43 # Set some limits to the child processes, e.g. stop it if it's running
  44 # longer than MAX_CPU_TIME seconds. (ulimit is not supported well on
  45 # cygwin - it shows some warnings - and the features we use may not all
  46 # be supported on some UN*X platforms.)
  47 ulimit -S -t $MAX_CPU_TIME
  48
  49 # Allow core files to be generated
  50 ulimit -c unlimited
  51
  52 # Don't enable ulimit -v when using ASAN. See
  53 # https://github.com/google/sanitizers/wiki/AddressSanitizer#ulimit--v
  54 if [ $ASAN -eq 0 ]; then
  55         ulimit -S -v $MAX_VMEM
  56 fi
  57
  58 for file in "$@"
  59 do
  60         echo "Testing file $file..."
  61         echo -n " - with tree... "
  62         if $TSHARK -nVxr "$file" > /dev/null
  63         then
  64                 echo "OK"
  65                 echo -n " - without tree... "
  66                 if "$WIRESHARK_BIN_DIR/tshark" -nr "$file" > /dev/null
  67                 then
  68                         echo "OK"
  69                         echo -n " - without tree but with a read filter... "
  70                         if "$WIRESHARK_BIN_DIR/tshark" -Yframe -nr "$file" > /dev/null
  71                         then
  72                                 echo "OK"
  73                         else
  74                                 echo "Failed"
  75                                 exit 1
  76                         fi
  77                 else
  78                         echo "Failed"
  79                         exit 1
  80                 fi
  81         else
  82                 echo "Failed"
  83                 exit 1
  84         fi
  85 done