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2024-12-27selftests: openvswitch: fix tcpdump executionAdrian Moreno1-2/+4
[ Upstream commit a17975992cc11588767175247ccaae1213a8b582 ] Fix the way tcpdump is executed by: - Using the right variable for the namespace. Currently the use of the empty "ns" makes the command fail. - Waiting until it starts to capture to ensure the interesting traffic is caught on slow systems. - Using line-buffered output to ensure logs are available when the test is paused with "-p". Otherwise the last chunk of data might only be written when tcpdump is killed. Fixes: 74cc26f416b9 ("selftests: openvswitch: add interface support") Signed-off-by: Adrian Moreno <amorenoz@redhat.com> Acked-by: Eelco Chaudron <echaudro@redhat.com> Link: https://patch.msgid.link/20241217211652.483016-1-amorenoz@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-27selftests: openvswitch: Use bash as interpreterSimon Horman1-1/+1
[ Upstream commit e2b447c9a1bba718f9c07513a1e8958209e862a1 ] openvswitch.sh makes use of substitutions of the form ${ns:0:1}, to obtain the first character of $ns. Empirically, this is works with bash but not dash. When run with dash these evaluate to an empty string and printing an error to stdout. # dash -c 'ns=client; echo "${ns:0:1}"' 2>error # cat error dash: 1: Bad substitution # bash -c 'ns=client; echo "${ns:0:1}"' 2>error c # cat error This leads to tests that neither pass nor fail. F.e. TEST: arp_ping [START] adding sandbox 'test_arp_ping' Adding DP/Bridge IF: sbx:test_arp_ping dp:arpping {, , } create namespaces ./openvswitch.sh: 282: eval: Bad substitution TEST: ct_connect_v4 [START] adding sandbox 'test_ct_connect_v4' Adding DP/Bridge IF: sbx:test_ct_connect_v4 dp:ct4 {, , } ./openvswitch.sh: 322: eval: Bad substitution create namespaces Resolve this by making openvswitch.sh a bash script. Fixes: 918423fda910 ("selftests: openvswitch: add an initial flow programming case") Signed-off-by: Simon Horman <horms@kernel.org> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://lore.kernel.org/r/20240617-ovs-selftest-bash-v1-1-7ae6ccd3617b@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-27selftests: openvswitch: Add validation for the recursion testAaron Conole1-0/+13
[ Upstream commit bd128f62c365504e1268dc09fcccdfb1f091e93a ] Add a test case into the netlink checks that will show the number of nested action recursions won't exceed 16. Going to 17 on a small clone call isn't enough to exhaust the stack on (most) systems, so it should be safe to run even on systems that don't have the fix applied. Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20240207132416.1488485-3-aconole@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-10-15selftests: openvswitch: Skip drop testing on older kernelsAaron Conole1-0/+17
Kernels that don't have support for openvswitch drop reasons also won't have the drop counter reasons, so we should skip the test completely. It previously wasn't possible to build a test case for this without polluting the datapath, so we introduce a mechanism to clear all the flows from a datapath allowing us to test for explicit drop actions, and then clear the flows to build the original test case. Fixes: 4242029164d6 ("selftests: openvswitch: add explicit drop testcase") Signed-off-by: Aaron Conole <aconole@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15selftests: openvswitch: Catch cases where the tests are killedAaron Conole1-0/+2
In case of fatal signal, or early abort at least cleanup the current test case. Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite") Signed-off-by: Aaron Conole <aconole@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-15selftests: openvswitch: Add version check for pyroute2Aaron Conole1-1/+1
Paolo Abeni reports that on some systems the pyroute2 version isn't new enough to run the test suite. Ensure that we support a minimum version of 0.6 for all cases (which does include the existing ones). The 0.6.1 version was released in May of 2021, so should be propagated to most installations at this point. The alternative that Paolo proposed was to only skip when the add-flow is being run. This would be okay for most cases, except if a future test case is added that needs to do flow dump without an associated add (just guessing). In that case, it could also be broken and we would need additional skip logic anyway. Just draw a line in the sand now. Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite") Reported-by: Paolo Abeni <pabeni@redhat.com> Closes: https://lore.kernel.org/lkml/8470c431e0930d2ea204a9363a60937289b7fdbe.camel@redhat.com/ Signed-off-by: Aaron Conole <aconole@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-14selftests: openvswitch: add explicit drop testcaseAdrian Moreno1-0/+35
Test explicit drops generate the right drop reason. Also, verify that the kernel rejects flows with actions following an explicit drop. Acked-by: Aaron Conole <aconole@redhat.com> Signed-off-by: Adrian Moreno <amorenoz@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-14selftests: openvswitch: add drop reason testcaseAdrian Moreno1-1/+66
Test if the correct drop reason is reported when OVS drops a packet due to an explicit flow. Acked-by: Aaron Conole <aconole@redhat.com> Signed-off-by: Adrian Moreno <amorenoz@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-03selftests: openvswitch: add ct-nat test case with ipv4Aaron Conole1-0/+64
Building on the previous work, add a very simplistic NAT case using ipv4. This just tests dnat transformation Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-03selftests: openvswitch: add basic ct test case parsingAaron Conole1-0/+68
Forwarding via ct() action is an important use case for openvswitch, but generally would require using a full ovs-vswitchd to get working. Add a ct action parser for basic ct test case. Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Adrian Moreno <amorenoz@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-03selftests: openvswitch: add a test for ipv4 forwardingAaron Conole1-0/+40
This is a simple ipv4 bidirectional connectivity test. Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Adrian Moreno <amorenoz@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-08-03selftests: openvswitch: add an initial flow programming caseAaron Conole1-0/+51
The openvswitch self-tests can test much of the control side of the module (ie: what a vswitchd implementation would process), but the actual packet forwarding cases aren't supported, making the testing of limited value. Add some flow parsing and an initial ARP based test case using arping utility. This lets us display flows, add some basic output flows with simple matches, and test against a known good forwarding case. Signed-off-by: Aaron Conole <aconole@redhat.com> Reviewed-by: Adrian Moreno <amorenoz@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-04-17selftests: openvswitch: add support for upcall testingAaron Conole1-3/+35
The upcall socket interface can be exercised now to make sure that future feature adjustments to the field can maintain backwards compatibility. Signed-off-by: Aaron Conole <aconole@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-04-17selftests: openvswitch: add interface supportAaron Conole1-0/+55
Includes an associated test to generate netns and connect interfaces, with the option to include packet tracing. This will be used in the future when flow support is added for additional test cases. Signed-off-by: Aaron Conole <aconole@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-10-27selftests: add openvswitch selftest suiteAaron Conole1-0/+218
Previous commit resolves a WARN splat that can be difficult to reproduce, but with the ovs-dpctl.py utility, it can be trivial. Introduce a test case which creates a DP, and then downgrades the feature set. This will include a utility 'ovs-dpctl.py' that can be extended to do additional tests and diagnostics. Signed-off-by: Aaron Conole <aconole@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>