linux-stable/samples/pktgen/parameters.sh
Martin KaFai Lau 0f06a6787e samples: Add an IPv6 '-6' option to the pktgen scripts
Add a '-6' option to the sample pktgen scripts for sending out
IPv6 packets.

[root@kerneldev010.prn1 ~/pktgen]# ./pktgen_sample03_burst_single_flow.sh -i eth0 -s 64 -d fe80::f652:14ff:fec2:a14c -m f4:52:14:c2:a1:4c -b 32 -6

[root@kerneldev011.prn1 ~]# tcpdump -i eth0 -nn -c3 port 9
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
14:38:51.815297 IP6 fe80::f652:14ff:fec2:2ad2.9 > fe80::f652:14ff:fec2:a14c.9: UDP, length 16
14:38:51.815311 IP6 fe80::f652:14ff:fec2:2ad2.9 > fe80::f652:14ff:fec2:a14c.9: UDP, length 16
14:38:51.815313 IP6 fe80::f652:14ff:fec2:2ad2.9 > fe80::f652:14ff:fec2:a14c.9: UDP, length 16

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-20 22:16:02 -07:00

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#
# Common parameter parsing for pktgen scripts
#
function usage() {
echo ""
echo "Usage: $0 [-vx] -i ethX"
echo " -i : (\$DEV) output interface/device (required)"
echo " -s : (\$PKT_SIZE) packet size"
echo " -d : (\$DEST_IP) destination IP"
echo " -m : (\$DST_MAC) destination MAC-addr"
echo " -t : (\$THREADS) threads to start"
echo " -c : (\$SKB_CLONE) SKB clones send before alloc new SKB"
echo " -b : (\$BURST) HW level bursting of SKBs"
echo " -v : (\$VERBOSE) verbose"
echo " -x : (\$DEBUG) debug"
echo " -6 : (\$IP6) IPv6"
echo ""
}
## --- Parse command line arguments / parameters ---
## echo "Commandline options:"
while getopts "s:i:d:m:t:c:b:vxh6" option; do
case $option in
i) # interface
export DEV=$OPTARG
info "Output device set to: DEV=$DEV"
;;
s)
export PKT_SIZE=$OPTARG
info "Packet size set to: PKT_SIZE=$PKT_SIZE bytes"
;;
d) # destination IP
export DEST_IP=$OPTARG
info "Destination IP set to: DEST_IP=$DEST_IP"
;;
m) # MAC
export DST_MAC=$OPTARG
info "Destination MAC set to: DST_MAC=$DST_MAC"
;;
t)
export THREADS=$OPTARG
export CPU_THREADS=$OPTARG
let "CPU_THREADS -= 1"
info "Number of threads to start: $THREADS (0 to $CPU_THREADS)"
;;
c)
export CLONE_SKB=$OPTARG
info "CLONE_SKB=$CLONE_SKB"
;;
b)
export BURST=$OPTARG
info "SKB bursting: BURST=$BURST"
;;
v)
export VERBOSE=yes
info "Verbose mode: VERBOSE=$VERBOSE"
;;
x)
export DEBUG=yes
info "Debug mode: DEBUG=$DEBUG"
;;
6)
export IP6=6
info "IP6: IP6=$IP6"
;;
h|?|*)
usage;
err 2 "[ERROR] Unknown parameters!!!"
esac
done
shift $(( $OPTIND - 1 ))
if [ -z "$PKT_SIZE" ]; then
# NIC adds 4 bytes CRC
export PKT_SIZE=60
info "Default packet size set to: set to: $PKT_SIZE bytes"
fi
if [ -z "$THREADS" ]; then
# Zero CPU threads means one thread, because CPU numbers are zero indexed
export CPU_THREADS=0
export THREADS=1
fi
if [ -z "$DEV" ]; then
usage
err 2 "Please specify output device"
fi
if [ -z "$DST_MAC" ]; then
warn "Missing destination MAC address"
fi
if [ -z "$DEST_IP" ]; then
warn "Missing destination IP address"
fi
if [ ! -d /proc/net/pktgen ]; then
info "Loading kernel module: pktgen"
modprobe pktgen
fi