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check-packet
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check-packet
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#!/bin/sh
# arp-scan is Copyright (C) 2005-2024 Roy Hills
#
# This file is part of arp-scan.
#
# arp-scan is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# arp-scan is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with arp-scan. If not, see <http://www.gnu.org/licenses/>.
#
# check-packet - Shell script to test arp-scan packet creation
#
# Author: Roy Hills
# Date: 30 January 2011
#
# This script checks that arp-scan builds ARP request packets correctly.
# It uses the undocumented arp-scan option --writepkttofile to write the
# packet to a file rather than sending it via the network.
#
TMPFILE=/tmp/arp-scan-test.$$.tmp
#
SAMPLE01="$srcdir/testdata/pkt-simple-request.dat"
SAMPLE02="$srcdir/testdata/pkt-custom-request.dat"
SAMPLE03="$srcdir/testdata/pkt-custom-request-padding.dat"
SAMPLE04="$srcdir/testdata/pkt-custom-request-llc.dat"
SAMPLE05="$srcdir/testdata/pkt-custom-request-vlan.dat"
SAMPLE06="$srcdir/testdata/pkt-custom-request-vlan-llc.dat"
echo "Checking simple ARP request packet against $SAMPLE01 ..."
ARPARGS="--retry=1 --file=- --srcaddr=00:01:02:03:04:05 --arpsha=00:01:02:03:04:05 --arpspa=127.0.0.1"
echo "127.0.0.1" | ./arp-scan $ARPARGS --writepkttofile="$TMPFILE" >/dev/null 2>&1
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
cmp -s "$TMPFILE" "$SAMPLE01"
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
echo "ok"
rm -f "$TMPFILE"
echo "Checking custom ARP request packet against $SAMPLE02 ..."
ARPARGS="--retry=1 --file=- --destaddr=11:11:11:11:11:11 --srcaddr=22:22:22:22:22:22 --prototype=0x3333 --arphrd=0x4444 --arppro=0x5555 --arphln=0x66 --arppln=0x77 --arpop=0x8888 --arpsha=99:99:99:99:99:99 --arpspa=170.170.170.170 --arptha=bb:bb:bb:bb:bb:bb"
echo "204.204.204.204" | ./arp-scan $ARPARGS --writepkttofile="$TMPFILE" >/dev/null 2>&1
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
cmp -s "$TMPFILE" "$SAMPLE02"
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
echo "ok"
rm -f "$TMPFILE"
echo "Checking custom ARP request packet with padding against $SAMPLE03 ..."
ARPARGS="--retry=1 --file=- --destaddr=11:11:11:11:11:11 --srcaddr=22:22:22:22:22:22 --prototype=0x3333 --arphrd=0x4444 --arppro=0x5555 --arphln=0x66 --arppln=0x77 --arpop=0x8888 --arpsha=99:99:99:99:99:99 --arpspa=170.170.170.170 --arptha=bb:bb:bb:bb:bb:bb --padding=dddddddddddddddd"
echo "204.204.204.204" | ./arp-scan $ARPARGS --writepkttofile="$TMPFILE" >/dev/null 2>&1
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
cmp -s "$TMPFILE" "$SAMPLE03"
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
echo "ok"
rm -f "$TMPFILE"
echo "Checking custom ARP request packet with LLC/SNAP framing against $SAMPLE04 ..."
ARPARGS="--retry=1 --file=- --destaddr=11:11:11:11:11:11 --srcaddr=22:22:22:22:22:22 --prototype=0x3333 --arphrd=0x4444 --arppro=0x5555 --arphln=0x66 --arppln=0x77 --arpop=0x8888 --arpsha=99:99:99:99:99:99 --arpspa=170.170.170.170 --arptha=bb:bb:bb:bb:bb:bb --llc"
echo "204.204.204.204" | ./arp-scan $ARPARGS --writepkttofile="$TMPFILE" >/dev/null 2>&1
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
cmp -s "$TMPFILE" "$SAMPLE04"
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
echo "ok"
rm -f "$TMPFILE"
echo "Checking custom ARP request packet with VLAN tag against $SAMPLE05 ..."
ARPARGS="--retry=1 --file=- --destaddr=11:11:11:11:11:11 --srcaddr=22:22:22:22:22:22 --prototype=0x3333 --arphrd=0x4444 --arppro=0x5555 --arphln=0x66 --arppln=0x77 --arpop=0x8888 --arpsha=99:99:99:99:99:99 --arpspa=170.170.170.170 --arptha=bb:bb:bb:bb:bb:bb --vlan=0xddd"
echo "204.204.204.204" | ./arp-scan $ARPARGS --writepkttofile="$TMPFILE" >/dev/null 2>&1
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
cmp -s "$TMPFILE" "$SAMPLE05"
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
echo "ok"
rm -f "$TMPFILE"
echo "Checking custom ARP request packet with VLAN tag and LLC/SNAP framing against $SAMPLE06 ..."
ARPARGS="--retry=1 --file=- --destaddr=11:11:11:11:11:11 --srcaddr=22:22:22:22:22:22 --prototype=0x3333 --arphrd=0x4444 --arppro=0x5555 --arphln=0x66 --arppln=0x77 --arpop=0x8888 --arpsha=99:99:99:99:99:99 --arpspa=170.170.170.170 --arptha=bb:bb:bb:bb:bb:bb --vlan=0xddd --llc"
echo "204.204.204.204" | ./arp-scan $ARPARGS --writepkttofile="$TMPFILE" >/dev/null 2>&1
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
cmp -s "$TMPFILE" "$SAMPLE06"
if test $? -ne 0; then
rm -f "$TMPFILE"
echo "FAILED"
exit 1
fi
echo "ok"
rm -f "$TMPFILE"