@@ -3,7 +3,7 @@
time_start=$(date +%s)
-optstring="S:R:d:e:l:r:h4cm:f:t"
+optstring="S:R:d:e:l:r:h4cm:f:tC"
ret=0
sin=""
sout=""
@@ -22,6 +22,7 @@ sndbuf=0
rcvbuf=0
options_log=true
do_tcp=0
+checksum=false
filesize=0
if [ $tc_loss -eq 100 ];then
@@ -47,6 +48,7 @@ usage() {
echo -e "\t-R: set rcvbuf value (default: use kernel default)"
echo -e "\t-m: test mode (poll, sendfile; default: poll)"
echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)"
+ echo -e "\t-C: enable the MPTCP data checksum"
}
while getopts "$optstring" option;do
@@ -104,6 +106,9 @@ while getopts "$optstring" option;do
"t")
do_tcp=$((do_tcp+1))
;;
+ "C")
+ checksum=true
+ ;;
"?")
usage $0
exit 1
@@ -200,6 +205,12 @@ ip -net "$ns4" route add default via dead:beef:3::2
# use TCP syn cookies, even if no flooding was detected.
ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2
+if $checksum; then
+ for i in "$ns1" "$ns2" "$ns3" "$ns4";do
+ ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1
+ done
+fi
+
set_ethtool_flags() {
local ns="$1"
local dev="$2"