![Gerald Combs](/assets/img/avatar_default.png)
------------------------------------------------------------------------ r47305 | gerald | 2013-01-26 12:12:52 -0800 (Sat, 26 Jan 2013) | 6 lines Changed paths: M /trunk-1.8/tools/fuzz-test.sh Instead of setting resource limits on the fuzz-test.sh process itself, set limits on the TShark subprocess. This should hopefully take care of the strange fuzz failures we've seen lately. Reduce the maximum CPU time to 5 minutes while we're at it. ------------------------------------------------------------------------ svn path=/trunk/; revision=47307
111 lines
3.2 KiB
Bash
Executable file
111 lines
3.2 KiB
Bash
Executable file
#!/bin/bash
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#
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# $Id$
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# Randpkt testing script for TShark
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#
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# This script uses Randpkt to generate capture files with randomized
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# content. It runs TShark on each generated file and checks for errors.
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# The files are processed repeatedly until an error is found.
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TEST_TYPE="randpkt"
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. `dirname $0`/test-common.sh
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# Trigger an abort if a dissector finds a bug.
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# Uncomment to disable
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WIRESHARK_ABORT_ON_DISSECTOR_BUG="True"
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PKT_TYPES=`$RANDPKT -h | awk '/^\t/ {print $1}'`
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# To do: add options for file names and limits
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while getopts ":d:p:t:" OPTCHAR ; do
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case $OPTCHAR in
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d) TMP_DIR=$OPTARG ;;
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p) MAX_PASSES=$OPTARG ;;
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t) PKT_TYPES=$OPTARG ;;
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esac
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done
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shift $(($OPTIND - 1))
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### usually you won't have to change anything below this line ###
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# TShark arguments (you won't have to change these)
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# n Disable network object name resolution
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# V Print a view of the details of the packet rather than a one-line summary of the packet
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# x Cause TShark to print a hex and ASCII dump of the packet data after printing the summary or details
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# r Read packet data from the following infile
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declare -a TSHARK_ARGS=("-nVxr" "-nr")
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RANDPKT_ARGS="-b 2000 -c 5000"
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NOTFOUND=0
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for i in "$TSHARK" "$RANDPKT" "$DATE" "$TMP_DIR" ; do
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if [ ! -x $i ]; then
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echo "Couldn't find $i"
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NOTFOUND=1
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fi
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done
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if [ $NOTFOUND -eq 1 ]; then
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exit 1
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fi
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HOWMANY="forever"
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if [ $MAX_PASSES -gt 0 ]; then
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HOWMANY="$MAX_PASSES passes"
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fi
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echo -n "Running $TSHARK with args: "
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printf "\"%s\" " "${TSHARK_ARGS[@]}"
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echo "($HOWMANY)"
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echo "Running $RANDPKT with args: $RANDPKT_ARGS"
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echo ""
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trap "MAX_PASSES=1; echo 'Caught signal'" HUP INT TERM
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# Iterate over our capture files.
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PASS=0
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while [ $PASS -lt $MAX_PASSES -o $MAX_PASSES -lt 1 ] ; do
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let PASS=$PASS+1
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echo "Pass $PASS:"
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for PKT_TYPE in $PKT_TYPES ; do
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if [ $PASS -gt $MAX_PASSES -a $MAX_PASSES -ge 1 ] ; then
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break # We caught a signal
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fi
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echo -n " $PKT_TYPE: "
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DISSECTOR_BUG=0
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"$RANDPKT" $RANDPKT_ARGS -t $PKT_TYPE $TMP_DIR/$TMP_FILE \
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> /dev/null 2>&1
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for ARGS in "${TSHARK_ARGS[@]}" ; do
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echo -n "($ARGS) "
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echo -e "Command and args: $TSHARK $ARGS\n" > $TMP_DIR/$ERR_FILE
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# Run in a child process with limits, e.g. stop it if it's running
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# longer then MAX_CPU_TIME seconds. (ulimit may not be supported
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# well on some platforms, particularly cygwin.)
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(
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ulimit -S -t $MAX_CPU_TIME -v $MAX_VMEM -s $MAX_STACK
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ulimit -c unlimited
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"$TSHARK" $ARGS $TMP_DIR/$TMP_FILE \
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> /dev/null 2>> $TMP_DIR/$ERR_FILE
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)
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RETVAL=$?
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if [ $RETVAL -ne 0 ] ; then break ; fi
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done
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grep -i "dissector bug" $TMP_DIR/$ERR_FILE \
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> /dev/null 2>&1 && DISSECTOR_BUG=1
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if [ $RETVAL -ne 0 -o $DISSECTOR_BUG -ne 0 ] ; then
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RAND_FILE="randpkt-`$DATE +%Y-%m-%d`-$$.pcap"
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mv $TMP_DIR/$TMP_FILE $TMP_DIR/$RAND_FILE
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echo " Output file: $TMP_DIR/$RAND_FILE"
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exit_error
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fi
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echo " OK"
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rm -f $TMP_DIR/$TMP_FILE $TMP_DIR/$ERR_FILE
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done
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done
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