Introduce a new test that doesn't setup native gre tunnels but sends simulated raw packets. This test is supposed to only run for kernel version from 4.4.x to 4.15.x.
Signed-off-by: Yifeng Sun <pkusunyif...@gmail.com> --- tests/system-traffic.at | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/tests/system-traffic.at b/tests/system-traffic.at index cf53c10..dca2bc8 100644 --- a/tests/system-traffic.at +++ b/tests/system-traffic.at @@ -575,6 +575,53 @@ NS_CHECK_EXEC([at_ns0], [ping -s 3200 -q -c 3 -i 0.3 -w 2 10.1.1.100 | FORMAT_PI OVS_TRAFFIC_VSWITCHD_STOP AT_CLEANUP +AT_SETUP([datapath - ping over gre tunnel by simulated packets]) +OVS_CHECK_KERNEL(4, 4, 15) + +OVS_TRAFFIC_VSWITCHD_START() + +AT_CHECK([ovs-vsctl -- set bridge br0 other-config:hwaddr=\"f2:ff:00:00:00:01\"]) +ADD_BR([br-underlay], [set bridge br-underlay other-config:hwaddr=\"f2:ff:00:00:00:02\"]) + +AT_CHECK([ovs-ofctl add-flow br0 "actions=normal"]) +AT_CHECK([ovs-ofctl add-flow br-underlay "actions=normal"]) + +ADD_NAMESPACES(at_ns0) + +dnl Set up underlay link from host into the namespace using veth pair. +ADD_VETH(p0, at_ns0, br-underlay, "172.31.1.1/24", f2:ff:00:00:00:03) +AT_CHECK([ip addr add dev br-underlay "172.31.1.100/24"]) +AT_CHECK([ip link set dev br-underlay up]) + +dnl Set up tunnel endpoints on OVS outside the namespace. +ADD_OVS_TUNNEL([gre], [br0], [at_gre0], [172.31.1.1], [10.1.1.100/24]) + +ip netns exec at_ns0 tcpdump -U -i p0 -w p0.pcap & +sleep 1 + +dnl First, check the underlay. +NS_CHECK_EXEC([at_ns0], [ping -q -c 3 -i 0.3 -w 2 172.31.1.100 | FORMAT_PING], [0], [dnl +3 packets transmitted, 3 received, 0% packet loss, time 0ms +]) + +dnl We don't actually add gretap port as below, instead, we will +dnl emulate one that sends out packets. Suppose its mac address is f2:ff:00:00:00:04. +dnl ADD_NATIVE_TUNNEL([gretap], [ns_gre0], [at_ns0], [172.31.1.100], [10.1.1.1/24]) + +dnl Now, check the overlay by sending out raw arp and icmp packets. +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 packet=f2ff00000002f2ff00000003080045000042ec2c4000402ff3bcac1f0101ac1f016400006558fffffffffffff2ff0000000408060001080006040001f2ff000000040a0101010000000000000a010164 actions=NORMAL" + +sleep 1 +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP 172.31.1.100 > 172.31.1.1: GREv0, length 46: ARP, Reply 10.1.1.100 is-at f2:ff:00:00:00:01 .* length 28" 2>&1 1>/dev/null]) + +ovs-ofctl -O OpenFlow13 packet-out br-underlay "in_port=1 packet=f2ff00000002f2ff0000000308004500007aec8e4000402ff322ac1f0101ac1f016400006558f2ff00000001f2ff00000004080045000054548f40004001cfb30a0101010a0101640800e6e829270003e1a3435b00000000ff1a050000000000101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f3031323334353637 actions=NORMAL" + +sleep 1 +AT_CHECK([tcpdump -xx -r p0.pcap 2>&1 | egrep "IP 172.31.1.100 > 172.31.1.1: GREv0, length 102: IP 10.1.1.100 > 10.1.1.1: ICMP echo reply, .* length 64$" 2>&1 1>/dev/null]) + +OVS_TRAFFIC_VSWITCHD_STOP +AT_CLEANUP + AT_SETUP([datapath - clone action]) OVS_TRAFFIC_VSWITCHD_START() -- 2.7.4 _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
