tools/randpkt-test.sh

   1 #!/bin/bash
   2 #
   3 # $Id$
   4
   5 # Randpkt testing script for TShark
   6 #
   7 # This script uses Randpkt to generate capture files with randomized
   8 # content.  It runs TShark on each generated file and checks for errors.
   9 # The files are processed repeatedly until an error is found.
  10
  11 TEST_TYPE="randpkt"
  12 . `dirname $0`/test-common.sh || exit 1
  13
  14 # Trigger an abort if a dissector finds a bug.
  15 # Uncomment to disable
  16 WIRESHARK_ABORT_ON_DISSECTOR_BUG="True"
  17
  18 PKT_TYPES=`$RANDPKT -h | awk '/^\t/ {print $1}'`
  19
  20 # To do: add options for file names and limits
  21 while getopts ":d:p:t:" OPTCHAR ; do
  22     case $OPTCHAR in
  23         d) TMP_DIR=$OPTARG ;;
  24         p) MAX_PASSES=$OPTARG ;;
  25         t) PKT_TYPES=$OPTARG ;;
  26     esac
  27 done
  28 shift $(($OPTIND - 1))
  29
  30 ### usually you won't have to change anything below this line ###
  31
  32 # TShark arguments (you won't have to change these)
  33 # n Disable network object name resolution
  34 # V Print a view of the details of the packet rather than a one-line summary of the packet
  35 # x Cause TShark to print a hex and ASCII dump of the packet data after printing the summary or details
  36 # r Read packet data from the following infile
  37 declare -a TSHARK_ARGS=("-nVxr" "-nr")
  38 RANDPKT_ARGS="-b 2000 -c 5000"
  39
  40 NOTFOUND=0
  41 for i in "$TSHARK" "$RANDPKT" "$DATE" "$TMP_DIR" ; do
  42     if [ ! -x $i ]; then
  43         echo "Couldn't find $i"
  44         NOTFOUND=1
  45     fi
  46 done
  47 if [ $NOTFOUND -eq 1 ]; then
  48     exit 1
  49 fi
  50
  51 HOWMANY="forever"
  52 if [ $MAX_PASSES -gt 0 ]; then
  53     HOWMANY="$MAX_PASSES passes"
  54 fi
  55 echo -n "Running $TSHARK with args: "
  56 printf "\"%s\" " "${TSHARK_ARGS[@]}"
  57 echo "($HOWMANY)"
  58 echo "Running $RANDPKT with args: $RANDPKT_ARGS"
  59 echo ""
  60
  61 trap "MAX_PASSES=1; echo 'Caught signal'" HUP INT TERM
  62
  63
  64 # Iterate over our capture files.
  65 PASS=0
  66 while [ $PASS -lt $MAX_PASSES -o $MAX_PASSES -lt 1 ] ; do
  67     let PASS=$PASS+1
  68     echo "Pass $PASS:"
  69
  70     for PKT_TYPE in $PKT_TYPES ; do
  71         if [ $PASS -gt $MAX_PASSES -a $MAX_PASSES -ge 1 ] ; then
  72             break # We caught a signal
  73         fi
  74         echo -n "    $PKT_TYPE: "
  75
  76         DISSECTOR_BUG=0
  77
  78         "$RANDPKT" $RANDPKT_ARGS -t $PKT_TYPE $TMP_DIR/$TMP_FILE \
  79             > /dev/null 2>&1
  80
  81         for ARGS in "${TSHARK_ARGS[@]}" ; do
  82             echo -n "($ARGS) "
  83             echo -e "Command and args: $TSHARK $ARGS\n" > $TMP_DIR/$ERR_FILE
  84
  85             # Run in a child process with limits, e.g. stop it if it's running
  86             # longer then MAX_CPU_TIME seconds. (ulimit may not be supported
  87             # well on some platforms, particularly cygwin.)
  88             (
  89                 ulimit -S -t $MAX_CPU_TIME -v $MAX_VMEM -s $MAX_STACK
  90                 ulimit -c unlimited
  91                 "$TSHARK" $ARGS $TMP_DIR/$TMP_FILE \
  92                     > /dev/null 2>> $TMP_DIR/$ERR_FILE
  93             )
  94             RETVAL=$?
  95             if [ $RETVAL -ne 0 ] ; then break ; fi
  96         done
  97         grep -i "dissector bug" $TMP_DIR/$ERR_FILE \
  98             > /dev/null 2>&1 && DISSECTOR_BUG=1
  99
 100         if [ $RETVAL -ne 0 -o $DISSECTOR_BUG -ne 0 ] ; then
 101
 102             exit_error
 103         fi
 104         echo " OK"
 105         rm -f $TMP_DIR/$TMP_FILE $TMP_DIR/$ERR_FILE
 106     done
 107 done