From: Kumar Amber <kumar.am...@intel.com> Tests: 6: OVS-DPDK - MFEX Autovalidator 7: OVS-DPDK - MFEX Autovalidator Fuzzy
Added a new directory to store the PCAP file used in the tests and a script to generate the fuzzy traffic type pcap to be used in fuzzy unit test. Signed-off-by: Kumar Amber <kumar.am...@intel.com> --- v5: - fix review comments(Ian, Flavio, Eelco) - remove sleep from first test and added minor 5 sec sleep to fuzzy --- --- Documentation/topics/dpdk/bridge.rst | 55 +++++++++++++++++++++++++++ tests/automake.mk | 5 +++ tests/mfex_fuzzy.py | 32 ++++++++++++++++ tests/pcap/mfex_test | Bin 0 -> 416 bytes tests/system-dpdk.at | 46 ++++++++++++++++++++++ 5 files changed, 138 insertions(+) create mode 100755 tests/mfex_fuzzy.py create mode 100644 tests/pcap/mfex_test diff --git a/Documentation/topics/dpdk/bridge.rst b/Documentation/topics/dpdk/bridge.rst index 8495687e8..8a8ef3782 100644 --- a/Documentation/topics/dpdk/bridge.rst +++ b/Documentation/topics/dpdk/bridge.rst @@ -341,3 +341,58 @@ A compile time option is available in order to test it with the OVS unit test suite. Use the following configure option :: $ ./configure --enable-mfex-default-autovalidator + +Unit Test Miniflow Extract +++++++++++++++++++++++++++ + +Unit test can also be used to test the workflow mentioned above by running +the following test-case in tests/system-dpdk.at :: + + make check-dpdk TESTSUITEFLAGS='-k MFEX' + OVS-DPDK - MFEX Autovalidator + +The unit test uses mulitple traffic type to test the correctness of the +implementaions. + +Running Fuzzy test with Autovalidator ++++++++++++++++++++++++++++++++++++++ + +Fuzzy tests can also be done on miniflow extract with the help of +auto-validator and Scapy. The steps below describes the steps to +reproduce the setup with IP being fuzzed to generate packets. + +Scapy is used to create fuzzy IP packets and save them into a PCAP :: + + pkt = fuzz(Ether()/IP()/TCP()) + +Set the miniflow extract to autovalidator using :: + + $ ovs-appctl dpif-netdev/miniflow-parser-set autovalidator + +OVS is configured to receive the generated packets :: + + $ ovs-vsctl add-port br0 pcap0 -- \ + set Interface pcap0 type=dpdk options:dpdk-devargs=net_pcap0 + "rx_pcap=fuzzy.pcap" + +With this workflow, the autovalidator will ensure that all MFEX +implementations are classifying each packet in exactly the same way. +If an optimized MFEX implementation causes a different miniflow to be +generated, the autovalidator has ovs_assert and logging statements that +will inform about the issue. + +Unit Fuzzy test with Autovalidator ++++++++++++++++++++++++++++++++++++++ + +The prerquiste before running the unit test is to run the script provided :: + + tests/mfex_fuzzy.py + +This script generates a pcap with mulitple type of fuzzed packets to be used +in the below unit test-case. + +Unit test can also be used to test the workflow mentioned above by running +the following test-case in tests/system-dpdk.at :: + + make check-dpdk TESTSUITEFLAGS='-k MFEX' + OVS-DPDK - MFEX Autovalidator Fuzzy diff --git a/tests/automake.mk b/tests/automake.mk index f45f8d76c..e94ccd27c 100644 --- a/tests/automake.mk +++ b/tests/automake.mk @@ -143,6 +143,11 @@ $(srcdir)/tests/fuzz-regression-list.at: tests/automake.mk echo "TEST_FUZZ_REGRESSION([$$basename])"; \ done > $@.tmp && mv $@.tmp $@ +EXTRA_DIST += $(MFEX_AUTOVALIDATOR_TESTS) +MFEX_AUTOVALIDATOR_TESTS = \ + tests/pcap/mfex_test \ + tests/mfex_fuzzy.py + OVSDB_CLUSTER_TESTSUITE_AT = \ tests/ovsdb-cluster-testsuite.at \ tests/ovsdb-execution.at \ diff --git a/tests/mfex_fuzzy.py b/tests/mfex_fuzzy.py new file mode 100755 index 000000000..a8051ba2b --- /dev/null +++ b/tests/mfex_fuzzy.py @@ -0,0 +1,32 @@ +#!/usr/bin/python3 +try: + from scapy.all import * +except ModuleNotFoundError as err: + print(err + ": Scapy") +import sys +import os + +path = os.environ['OVS_DIR'] + "/tests/pcap/fuzzy" +pktdump = PcapWriter(path, append=False, sync=True) + +for i in range(0, 2000): + + # Generate random protocol bases, use a fuzz() over the combined packet for full fuzzing. + eth = Ether(src=RandMAC(), dst=RandMAC()) + vlan = Dot1Q() + ipv4 = IP(src=RandIP(), dst=RandIP()) + ipv6 = IPv6(src=RandIP6(), dst=RandIP6()) + udp = UDP() + tcp = TCP() + + # IPv4 packets with fuzzing + pktdump.write(fuzz(eth/ipv4/udp)) + pktdump.write(fuzz(eth/ipv4/tcp)) + pktdump.write(fuzz(eth/vlan/ipv4/udp)) + pktdump.write(fuzz(eth/vlan/ipv4/tcp)) + + # IPv6 packets with fuzzing + pktdump.write(fuzz(eth/ipv6/udp)) + pktdump.write(fuzz(eth/ipv6/tcp)) + pktdump.write(fuzz(eth/vlan/ipv6/udp)) + pktdump.write(fuzz(eth/vlan/ipv6/tcp)) \ No newline at end of file diff --git a/tests/pcap/mfex_test b/tests/pcap/mfex_test new file mode 100644 index 0000000000000000000000000000000000000000..1aac67b8d643ecb016c758cba4cc32212a80f52a GIT binary patch literal 416 zcmca|c+)~A1{MYw`2U}Qff2}Q<eHVR>K`M68ITRa|G@yFii5$Gfk6YL%z>@uY&}o| z2s4N<1VH2&7y^V87$)XGOtD~MV$cFgfG~zBGGJ2#YtF$<F=a4i;9x8Q*<ZrSM6Ufz xK>KST_NTIwYriok6N4Vm)gX-Q@<yO<!C`>c^{cp<7_5LgK^UuU{2>VS0RZ!RQ+EIW literal 0 HcmV?d00001 diff --git a/tests/system-dpdk.at b/tests/system-dpdk.at index 802895488..fcab92729 100644 --- a/tests/system-dpdk.at +++ b/tests/system-dpdk.at @@ -232,3 +232,49 @@ OVS_VSWITCHD_STOP(["\@does not exist. The Open vSwitch kernel module is probably \@EAL: No free hugepages reported in hugepages-1048576kB@d"]) AT_CLEANUP dnl -------------------------------------------------------------------------- + +dnl -------------------------------------------------------------------------- +dnl Add standard DPDK PHY port +AT_SETUP([OVS-DPDK - MFEX Autovalidator]) +AT_KEYWORDS([dpdk]) + +OVS_DPDK_START() + +dnl Add userspace bridge and attach it to OVS +AT_CHECK([ovs-vsctl add-br br0 -- set bridge br0 datapath_type=netdev]) +AT_CHECK([ovs-vsctl add-port br0 p1 -- set Interface p1 type=dpdk options:dpdk-devargs=net_pcap1,rx_pcap=$srcdir/pcap/mfex_test,infinite_rx=1], [], [stdout], [stderr]) +AT_CHECK([ovs-vsctl show], [], [stdout]) + + +AT_CHECK([ovs-appctl dpif-netdev/miniflow-parser-set autovalidator], [0], [dnl +Miniflow implementation set to autovalidator +]) + +dnl Clean up +AT_CHECK([ovs-vsctl del-port br0 p1], [], [stdout], [stderr]) +AT_CLEANUP +dnl -------------------------------------------------------------------------- + +dnl -------------------------------------------------------------------------- +dnl Add standard DPDK PHY port +AT_SETUP([OVS-DPDK - MFEX Autovalidator Fuzzy]) +AT_KEYWORDS([dpdk]) +AT_SKIP_IF([! pip3 list | grep scapy], [], []) +AT_CHECK([$PYTHON3 $srcdir/mfex_fuzzy.py], [], [stdout]) +OVS_DPDK_START() + +dnl Add userspace bridge and attach it to OVS +AT_CHECK([ovs-vsctl add-br br0 -- set bridge br0 datapath_type=netdev]) +AT_CHECK([ovs-vsctl add-port br0 p1 -- set Interface p1 type=dpdk options:dpdk-devargs=net_pcap1,rx_pcap=$srcdir/pcap/fuzzy,infinite_rx=1], [], [stdout], [stderr]) +AT_CHECK([ovs-vsctl show], [], [stdout]) + + +AT_CHECK([ovs-appctl dpif-netdev/miniflow-parser-set autovalidator], [0], [dnl +Miniflow implementation set to autovalidator +]) +sleep 5 + +dnl Clean up +AT_CHECK([ovs-vsctl del-port br0 p1], [], [stdout], [stderr]) +AT_CLEANUP +dnl -------------------------------------------------------------------------- -- 2.32.0 _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev