For some use-cases we may want to change the tcpdump flags used in tcpdump_start(). For instance, observing interfaces without the PROMISC flag, e.g. to see what's really being forwarded to the bridge interface.
Signed-off-by: Joachim Wiberg <[email protected]> --- tools/testing/selftests/net/forwarding/lib.sh | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) mode change 100644 => 100755 tools/testing/selftests/net/forwarding/lib.sh diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh old mode 100644 new mode 100755 index 664b9ecaf228..00cdcab7accf --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -1369,7 +1369,13 @@ tcpdump_start() capuser="-Z $SUDO_USER" fi - $ns_cmd tcpdump -e -n -Q in -i $if_name \ + if [ -z $TCPDUMP_EXTRA_FLAGS ]; then + extra_flags="" + else + extra_flags="$TCPDUMP_EXTRA_FLAGS" + fi + + $ns_cmd tcpdump $extra_flags -e -n -Q in -i $if_name \ -s 65535 -B 32768 $capuser -w $capfile > "$capout" 2>&1 & cappid=$! -- 2.25.1
