Harald Welte | e057146 | 2018-02-14 15:42:14 +0100 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | |
Max | e521445 | 2019-03-14 18:15:27 +0100 | [diff] [blame] | 3 | PIDFILE=/tmp/dumper.pid |
Pau Espin Pedrol | 8fdd313 | 2018-02-15 16:01:50 +0100 | [diff] [blame] | 4 | TCPDUMP=/usr/sbin/tcpdump |
Max | 81487c8 | 2019-03-18 14:18:31 +0100 | [diff] [blame] | 5 | DUMPCAP=/usr/bin/dumpcap |
Harald Welte | e057146 | 2018-02-14 15:42:14 +0100 | [diff] [blame] | 6 | TESTCASE=$1 |
| 7 | |
Neels Hofmeyr | ced8acf | 2019-02-26 05:03:22 +0100 | [diff] [blame] | 8 | echo "------ $TESTCASE ------" |
| 9 | date |
| 10 | |
Harald Welte | e057146 | 2018-02-14 15:42:14 +0100 | [diff] [blame] | 11 | if [ "z$TTCN3_PCAP_PATH" = "z" ]; then |
| 12 | TTCN3_PCAP_PATH=/tmp |
| 13 | fi |
| 14 | |
| 15 | if [ -e $PIDFILE ]; then |
| 16 | kill "$(cat "$PIDFILE")" |
| 17 | rm $PIDFILE |
| 18 | fi |
| 19 | |
Max | e521445 | 2019-03-14 18:15:27 +0100 | [diff] [blame] | 20 | if [ "$(id -u)" = "0" ]; then |
| 21 | CMD="$TCPDUMP -U" |
| 22 | else |
Harald Welte | e057146 | 2018-02-14 15:42:14 +0100 | [diff] [blame] | 23 | # NOTE: This requires you to be root or something like |
| 24 | # "laforge ALL=NOPASSWD: /usr/sbin/tcpdump, /bin/kill" in your sudoers file |
Max | e521445 | 2019-03-14 18:15:27 +0100 | [diff] [blame] | 25 | CMD="sudo $TCPDUMP -U" |
Harald Welte | e057146 | 2018-02-14 15:42:14 +0100 | [diff] [blame] | 26 | fi |
Max | 81487c8 | 2019-03-18 14:18:31 +0100 | [diff] [blame] | 27 | |
| 28 | if [ -x $DUMPCAP ]; then |
| 29 | CAP_ERR="1" |
| 30 | if [ -x /sbin/setcap ]; then |
| 31 | # N. B: this check requires libcap2-bin package |
| 32 | setcap -q -v 'cap_net_admin,cap_net_raw=pie' $DUMPCAP |
| 33 | CAP_ERR="$?" |
| 34 | fi |
| 35 | if [ -u $DUMPCAP -o "$CAP_ERR" = "0" ]; then |
| 36 | CMD="$DUMPCAP -q" |
| 37 | else |
| 38 | echo "NOTE: unable to use dumpcap due to missing capabilities or suid bit" |
| 39 | fi |
| 40 | fi |
| 41 | |
Max | e521445 | 2019-03-14 18:15:27 +0100 | [diff] [blame] | 42 | $CMD -s 1500 -n -i any -w "$TTCN3_PCAP_PATH/$TESTCASE.pcap" >$TTCN3_PCAP_PATH/$TESTCASE.pcap.stdout 2>&1 & |
Harald Welte | e057146 | 2018-02-14 15:42:14 +0100 | [diff] [blame] | 43 | PID=$! |
| 44 | echo $PID > $PIDFILE |
Pau Espin Pedrol | b01d313 | 2018-02-15 14:43:58 +0100 | [diff] [blame] | 45 | |
Max | e521445 | 2019-03-14 18:15:27 +0100 | [diff] [blame] | 46 | # Wait until packet dumper creates the pcap file and starts recording. |
| 47 | # We generate some traffic until we see packet dumper catches it. |
Pau Espin Pedrol | b01d313 | 2018-02-15 14:43:58 +0100 | [diff] [blame] | 48 | # Timeout is 10 seconds. |
Pau Espin Pedrol | 8fdd313 | 2018-02-15 16:01:50 +0100 | [diff] [blame] | 49 | ping 127.0.0.1 >/dev/null 2>&1 & |
| 50 | PID=$! |
Pau Espin Pedrol | b01d313 | 2018-02-15 14:43:58 +0100 | [diff] [blame] | 51 | i=0 |
Pau Espin Pedrol | 8fdd313 | 2018-02-15 16:01:50 +0100 | [diff] [blame] | 52 | while [ ! -f "$TTCN3_PCAP_PATH/$TESTCASE.pcap" ] || |
Alexander Couzens | d1f4095 | 2018-05-12 16:52:59 +0200 | [diff] [blame] | 53 | [ "$(stat -c '%s' "$TTCN3_PCAP_PATH/$TESTCASE.pcap")" -eq 32 ] |
Pau Espin Pedrol | b01d313 | 2018-02-15 14:43:58 +0100 | [diff] [blame] | 54 | do |
Max | e521445 | 2019-03-14 18:15:27 +0100 | [diff] [blame] | 55 | echo "Waiting for packet dumper to start... $i" |
Pau Espin Pedrol | b01d313 | 2018-02-15 14:43:58 +0100 | [diff] [blame] | 56 | sleep 1 |
| 57 | i=$((i+1)) |
Pau Espin Pedrol | 8fdd313 | 2018-02-15 16:01:50 +0100 | [diff] [blame] | 58 | if [ $i -eq 10 ]; then |
| 59 | break |
| 60 | fi |
Pau Espin Pedrol | b01d313 | 2018-02-15 14:43:58 +0100 | [diff] [blame] | 61 | done |
Pau Espin Pedrol | 8fdd313 | 2018-02-15 16:01:50 +0100 | [diff] [blame] | 62 | kill $PID |