From 40f843ee5e17673780c0969c8248b31a8d926b17 Mon Sep 17 00:00:00 2001 From: "Daniel T. Lee" Date: Sat, 5 Oct 2019 17:25:09 +0900 Subject: samples: pktgen: allow to specify destination IP range (CIDR) Currently, kernel pktgen has the feature to specify destination address range for sending packet. (e.g. pgset "dst_min/dst_max") But on samples, each pktgen script doesn't have any option to achieve this. This commit adds the feature to specify the destination address range with CIDR. -d : ($DEST_IP) destination IP. CIDR (e.g. 198.18.0.0/15) is also allowed # ./pktgen_sample01_simple.sh -6 -d fe80::20/126 -p 3000 -n 4 # tcpdump ip6 and udp 05:14:18.082285 IP6 fe80::99.71 > fe80::23.3000: UDP, length 16 05:14:18.082564 IP6 fe80::99.43 > fe80::23.3000: UDP, length 16 05:14:18.083366 IP6 fe80::99.107 > fe80::22.3000: UDP, length 16 05:14:18.083585 IP6 fe80::99.97 > fe80::21.3000: UDP, length 16 Signed-off-by: Daniel T. Lee Acked-by: Jesper Dangaard Brouer Signed-off-by: David S. Miller --- samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh') diff --git a/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh b/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh index 0f332555b40d..e607cb369b20 100755 --- a/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh +++ b/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh @@ -24,6 +24,10 @@ if [[ -n "$BURST" ]]; then err 1 "Bursting not supported for this mode" fi [ -z "$COUNT" ] && COUNT="10000000" # Zero means indefinitely +if [ -n "$DEST_IP" ]; then + validate_addr${IP6} $DEST_IP + read -r DST_MIN DST_MAX <<< $(parse_addr${IP6} $DEST_IP) +fi if [ -n "$DST_PORT" ]; then read -r UDP_DST_MIN UDP_DST_MAX <<< $(parse_ports $DST_PORT) validate_ports $UDP_DST_MIN $UDP_DST_MAX @@ -54,7 +58,8 @@ for ((thread = $F_THREAD; thread <= $L_THREAD; thread++)); do # Destination pg_set $dev "dst_mac $DST_MAC" - pg_set $dev "dst$IP6 $DEST_IP" + pg_set $dev "dst${IP6}_min $DST_MIN" + pg_set $dev "dst${IP6}_max $DST_MAX" if [ -n "$DST_PORT" ]; then # Single destination port or random port range -- cgit v1.2.3