forked from osmocom/wireshark
232 lines
7.3 KiB
Bash
232 lines
7.3 KiB
Bash
#!/bin/bash
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#
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# Test the capture engine of the Wireshark tools
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#
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# $Id$
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#
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# Wireshark - Network traffic analyzer
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# By Gerald Combs <gerald@wireshark.org>
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# Copyright 2005 Ulf Lamping
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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# common exit status values
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EXIT_OK=0
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EXIT_COMMAND_LINE=1
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EXIT_ERROR=2
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# capture exactly 10 packets
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capture_step_10packets() {
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$DUT -i $TRAFFIC_CAPTURE_IFACE -w ./testout.pcap -c 10 -a duration:$TRAFFIC_CAPTURE_DURATION > ./testout.txt 2>&1
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RETURNVALUE=$?
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if [ ! $RETURNVALUE -eq $EXIT_OK ]; then
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test_step_failed "exit status of $DUT: $RETURNVALUE"
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# part of the Prerequisite checks
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# probably wrong interface, output the possible interfaces
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$TSHARK -D
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return
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fi
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# we should have an output file now
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if [ ! -f "./testout.pcap" ]; then
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test_step_failed "No output file!"
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return
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fi
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# ok, we got a capture file, does it contain exactly 10 packets?
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$CAPINFOS ./testout.pcap > ./testout.txt
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grep -i 'Number of packets: 10' ./testout.txt > /dev/null
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if [ $? -eq 0 ]; then
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test_step_ok
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else
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echo
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cat ./testout.txt
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# part of the Prerequisite checks
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# probably wrong interface, output the possible interfaces
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$TSHARK -D
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test_step_failed "No or not enough traffic captured. Probably the wrong interface: $TRAFFIC_CAPTURE_IFACE!"
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fi
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}
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# capture exactly 10 packets using "-w -" (piping to stdout)
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capture_step_10packets_stdout() {
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$DUT -i $TRAFFIC_CAPTURE_IFACE -c 10 -a duration:$TRAFFIC_CAPTURE_DURATION -w - > ./testout.pcap 2>./testout.txt
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RETURNVALUE=$?
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if [ ! $RETURNVALUE -eq $EXIT_OK ]; then
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test_step_failed "exit status of $DUT: $RETURNVALUE"
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$TSHARK -D
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return
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fi
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# we should have an output file now
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if [ ! -f "./testout.pcap" ]; then
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test_step_failed "No output file!"
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return
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fi
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# ok, we got a capture file, does it contain exactly 10 packets?
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$CAPINFOS ./testout.pcap > ./testout2.txt 2>&1
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grep -i 'Number of packets: 10' ./testout2.txt > /dev/null
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if [ $? -eq 0 ]; then
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test_step_ok
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else
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echo
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cat ./testout.txt
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cat ./testout2.txt
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$TSHARK -D
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test_step_failed "No or not enough traffic captured. Probably the wrong interface: $TRAFFIC_CAPTURE_IFACE!"
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fi
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}
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# capture exactly 2 times 10 packets (multiple files)
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capture_step_2multi_10packets() {
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$DUT -i $TRAFFIC_CAPTURE_IFACE -w ./testout.pcap -c 10 -a duration:$TRAFFIC_CAPTURE_DURATION > ./testout.txt 2>&1
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RETURNVALUE=$?
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if [ ! $RETURNVALUE -eq $EXIT_OK ]; then
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test_step_failed "exit status of $DUT: $RETURNVALUE"
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# part of the Prerequisite checks
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# probably wrong interface, output the possible interfaces
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$TSHARK -D
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return
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fi
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# we should have an output file now
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if [ ! -f "./testout.pcap" ]; then
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test_step_failed "No output file!"
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return
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fi
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# ok, we got a capture file, does it contain exactly 10 packets?
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$CAPINFOS ./testout.pcap > ./testout.txt
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grep -i 'Number of packets: 10' ./testout.txt > /dev/null
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if [ $? -eq 0 ]; then
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test_step_ok
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else
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echo
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cat ./testout.txt
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test_step_failed "Probably the wrong interface (no traffic captured)!"
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fi
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}
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# capture with a very unlikely read filter, packets must be zero afterwards
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capture_step_read_filter() {
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# valid, but very unlikely filter
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$DUT -i $TRAFFIC_CAPTURE_IFACE -w ./testout.pcap -a duration:$TRAFFIC_CAPTURE_DURATION -R 'dcerpc.cn_call_id==123456' -c 10 > ./testout.txt 2>&1
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RETURNVALUE=$?
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if [ ! $RETURNVALUE -eq $EXIT_OK ]; then
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test_step_failed "exit status: $RETURNVALUE"
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return
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fi
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# we should have an output file now
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if [ ! -f "./testout.pcap" ]; then
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test_step_failed "No output file!"
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return
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fi
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# ok, we got a capture file, does it contain exactly 0 packets?
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$CAPINFOS ./testout.pcap > ./testout.txt
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grep -i 'Number of packets: 0' ./testout.txt > /dev/null
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if [ $? -eq 0 ]; then
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test_step_ok
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else
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echo
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cat ./testout.txt
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test_step_failed "Capture file should contain zero packets!"
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fi
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}
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# capture with a snapshot length
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capture_step_snapshot() {
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# capture with a snapshot length of 68 bytes for $TRAFFIC_CAPTURE_DURATION seconds
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# this should result in no packets
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$DUT -i $TRAFFIC_CAPTURE_IFACE -w ./testout.pcap -s 68 -a duration:$TRAFFIC_CAPTURE_DURATION > ./testout.txt 2>&1
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RETURNVALUE=$?
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if [ ! $RETURNVALUE -eq $EXIT_OK ]; then
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test_step_failed "exit status: $RETURNVALUE"
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return
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fi
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# we should have an output file now
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if [ ! -f "./testout.pcap" ]; then
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test_step_failed "No output file!"
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return
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fi
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# use tshark to filter out all packets, which are larger than 68 bytes
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$TSHARK -r ./testout.pcap -w ./testout2.pcap -R 'frame.cap_len>68' > ./testout.txt 2>&1
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# ok, we got a capture file, does it contain exactly 0 packets?
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$CAPINFOS ./testout2.pcap > ./testout.txt
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grep -i 'Number of packets: 0' ./testout.txt > /dev/null
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if [ $? -eq 0 ]; then
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test_step_ok
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else
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echo
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cat ./testout.txt
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test_step_failed "Capture file should contain zero packets!"
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return
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fi
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}
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wireshark_capture_suite() {
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# Q: quit after cap, k: start capture immediately
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DUT="$WIRESHARK -Q -k"
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test_step_add "Capture 10 packets" capture_step_10packets
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# piping to stdout doesn't work with Wireshark and capturing!
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#test_step_add "Capture 10 packets using stdout: -w -" capture_step_10packets_stdout
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# read filter doesn't work with Wireshark and capturing!
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#test_step_add "Capture read filter (${TRAFFIC_CAPTURE_DURATION}s)" capture_step_read_filter
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test_step_add "Capture snapshot length 68 bytes (${TRAFFIC_CAPTURE_DURATION}s)" capture_step_snapshot
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}
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tshark_capture_suite() {
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DUT=$TSHARK
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test_step_add "Capture 10 packets" capture_step_10packets
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test_step_add "Capture 10 packets using stdout: -w -" capture_step_10packets_stdout
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test_step_add "Capture read filter (${TRAFFIC_CAPTURE_DURATION}s)" capture_step_read_filter
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test_step_add "Capture snapshot length 68 bytes (${TRAFFIC_CAPTURE_DURATION}s)" capture_step_snapshot
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}
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dumpcap_capture_suite() {
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#DUT="$DUMPCAP -Q"
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DUT=$DUMPCAP
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test_step_add "Capture 10 packets" capture_step_10packets
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test_step_add "Capture 10 packets using stdout: -w -" capture_step_10packets_stdout
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# read (display) filters intentionally doesn't work with dumpcap!
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#test_step_add "Capture read filter (${TRAFFIC_CAPTURE_DURATION}s)" capture_step_read_filter
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test_step_add "Capture snapshot length 68 bytes (${TRAFFIC_CAPTURE_DURATION}s)" capture_step_snapshot
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}
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capture_cleanup_step() {
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rm -f ./testout.txt
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rm -f ./testout2.txt
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rm -f ./testout.pcap
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rm -f ./testout2.pcap
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}
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capture_suite() {
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test_step_set_pre capture_cleanup_step
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test_step_set_post capture_cleanup_step
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test_remark_add "Capture - need some traffic on interface: \"$TRAFFIC_CAPTURE_IFACE\""
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test_suite_add "TShark capture" tshark_capture_suite
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test_suite_add "Wireshark capture" wireshark_capture_suite
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test_suite_add "Dumpcap capture" dumpcap_capture_suite
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}
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