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#!/bin/bash
# A little script to run tshark on capture file[s] (potentially ones that
# failed fuzz testing). Useful because it sets up ulimits and other environment
# variables for you to ensure things like misused ephemeral memory are caught.
# (I'm writing this after having my machine hang up for like 15 minutes because
# I wasn't paying attention while tshark was running on a fuzzed capture and
# it used all my RAM + swap--which was pretty painful.)
#
# Copyright 2012 Jeff Morriss <jeff.morriss.ws [AT] gmail.com>
#
# Wireshark - Network traffic analyzer
# By Gerald Combs <gerald@wireshark.org>
# Copyright 1998 Gerald Combs
#
# SPDX-License-Identifier: GPL-2.0-or-later
TEST_TYPE="manual"
# shellcheck source=tools/test-common.sh
. "$( dirname "$0" )"/test-common.sh || exit 1
# Run under AddressSanitizer ?
ASAN=$CONFIGURED_WITH_ASAN
while getopts "ab:" OPTCHAR ; do
case $OPTCHAR in
a) ASAN=1 ;;
b) WIRESHARK_BIN_DIR=$OPTARG ;;
*) printf "Unknown option: %s\\n" "$OPTARG"
esac
done
shift $(( OPTIND - 1 ))
if [ $# -lt 1 ]
then
printf "Usage: %s [-b bin_dir] /path/to/file[s].pcap\\n" "$( basename "$0" )"
exit 1
fi
ws_bind_exec_paths
ws_check_exec "$TSHARK"
# Set some limits to the child processes, e.g. stop it if it's running
# longer than MAX_CPU_TIME seconds. (ulimit is not supported well on
# cygwin - it shows some warnings - and the features we use may not all
# be supported on some UN*X platforms.)
ulimit -S -t $MAX_CPU_TIME
# Allow core files to be generated
ulimit -c unlimited
# Don't enable ulimit -v when using ASAN. See
# https://github.com/google/sanitizers/wiki/AddressSanitizer#ulimit--v
if [ $ASAN -eq 0 ]; then
ulimit -S -v $MAX_VMEM
fi
for file in "$@"
do
echo "Testing file $file..."
echo -n " - with tree... "
if $TSHARK -nVxr "$file" > /dev/null
then
echo "OK"
echo -n " - without tree... "
if "$WIRESHARK_BIN_DIR/tshark" -nr "$file" > /dev/null
then
echo "OK"
echo -n " - without tree but with a read filter... "
if "$WIRESHARK_BIN_DIR/tshark" -Yframe -nr "$file" > /dev/null
then
echo "OK"
else
echo "Failed"
exit 1
fi
else
echo "Failed"
exit 1
fi
else
echo "Failed"
exit 1
fi
done
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