linux-stable.git/tools/testing/selftests/net/openvswitch, branch linux-6.9.y

selftests: openvswitch: Set value to nla flags.

2024-07-25T07:53:30+00:00

[ Upstream commit a8763466669d21b570b26160d0a5e0a2ee529d22 ]

Netlink flags, although they don't have payload at the netlink level,
are represented as having "True" as value in pyroute2.

Without it, trying to add a flow with a flag-type action (e.g: pop_vlan)
fails with the following traceback:

Traceback (most recent call last):
  File "[...]/ovs-dpctl.py", line 2498, in 
    sys.exit(main(sys.argv))
             ^^^^^^^^^^^^^^
  File "[...]/ovs-dpctl.py", line 2487, in main
    ovsflow.add_flow(rep["dpifindex"], flow)
  File "[...]/ovs-dpctl.py", line 2136, in add_flow
    reply = self.nlm_request(
            ^^^^^^^^^^^^^^^^^
  File "[...]/pyroute2/netlink/nlsocket.py", line 822, in nlm_request
    return tuple(self._genlm_request(*argv, **kwarg))
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "[...]/pyroute2/netlink/generic/__init__.py", line 126, in
nlm_request
    return tuple(super().nlm_request(*argv, **kwarg))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "[...]/pyroute2/netlink/nlsocket.py", line 1124, in nlm_request
    self.put(msg, msg_type, msg_flags, msg_seq=msg_seq)
  File "[...]/pyroute2/netlink/nlsocket.py", line 389, in put
    self.sendto_gate(msg, addr)
  File "[...]/pyroute2/netlink/nlsocket.py", line 1056, in sendto_gate
    msg.encode()
  File "[...]/pyroute2/netlink/__init__.py", line 1245, in encode
    offset = self.encode_nlas(offset)
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "[...]/pyroute2/netlink/__init__.py", line 1560, in encode_nlas
    nla_instance.setvalue(cell[1])
  File "[...]/pyroute2/netlink/__init__.py", line 1265, in setvalue
    nlv.setvalue(nla_tuple[1])
                 ~~~~~~~~~^^^
IndexError: list index out of range

Signed-off-by: Adrian Moreno 
Acked-by: Aaron Conole 
Signed-off-by: David S. Miller 
Signed-off-by: Sasha Levin

selftests: openvswitch: Use bash as interpreter

2024-06-27T11:52:22+00:00

[ 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 
Reviewed-by: Przemek Kitszel 
Link: https://lore.kernel.org/r/20240617-ovs-selftest-bash-v1-1-7ae6ccd3617b@kernel.org
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-02-16T00:20:04+00:00

Cross-merge networking fixes after downstream PR.

No conflicts.

Adjacent changes:

net/core/dev.c
  9f30831390ed ("net: add rcu safety to rtnl_prop_list_size()")
  723de3ebef03 ("net: free altname using an RCU callback")

net/unix/garbage.c
  11498715f266 ("af_unix: Remove io_uring code for GC.")
  25236c91b5ab ("af_unix: Fix task hung while purging oob_skb in GC.")

drivers/net/ethernet/renesas/ravb_main.c
  ed4adc07207d ("net: ravb: Count packets instead of descriptors in GbEth RX path"
)
  c2da9408579d ("ravb: Add Rx checksum offload support for GbEth")

net/mptcp/protocol.c
  bdd70eb68913 ("mptcp: drop the push_pending field")
  28e5c1380506 ("mptcp: annotate lockless accesses around read-mostly fields")

Signed-off-by: Jakub Kicinski

selftests: openvswitch: Add validation for the recursion test

2024-02-09T20:54:38+00:00

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 
Reviewed-by: Simon Horman 
Link: https://lore.kernel.org/r/20240207132416.1488485-3-aconole@redhat.com
Signed-off-by: Jakub Kicinski

selftests: openvswitch: Test ICMP related matches work with SNAT

2024-02-02T10:13:20+00:00

Add a test case for regression in openvswitch nat that was fixed by
commit e6345d2824a3 ("netfilter: nf_nat: fix action not being set for
all ct states").

Link: https://lore.kernel.org/netdev/20231221224311.130319-1-brad@faucet.nz/
Link: https://mail.openvswitch.org/pipermail/ovs-dev/2024-January/410476.html
Suggested-by: Aaron Conole 
Signed-off-by: Brad Cowie 
Tested-by: Aaron Conole 
Acked-by: Aaron Conole 
Signed-off-by: David S. Miller

selftests: openvswitch: Fix the ct_tuple for v4

2023-10-15T19:02:51+00:00

The ct_tuple v4 data structure decode / encode routines were using
the v6 IP address decode and relying on default encode. This could
cause exceptions during encode / decode depending on how a ct4
tuple would appear in a netlink message.

Caught during code review.

Fixes: e52b07aa1a54 ("selftests: openvswitch: add flow dump support")
Signed-off-by: Aaron Conole 
Signed-off-by: David S. Miller

selftests: openvswitch: Skip drop testing on older kernels

2023-10-15T19:02:51+00:00

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 
Signed-off-by: David S. Miller

selftests: openvswitch: Catch cases where the tests are killed

2023-10-15T19:02:51+00:00

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 
Signed-off-by: David S. Miller

selftests: openvswitch: Add version check for pyroute2

2023-10-15T19:02:51+00:00

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 
Closes: https://lore.kernel.org/lkml/8470c431e0930d2ea204a9363a60937289b7fdbe.camel@redhat.com/
Signed-off-by: Aaron Conole 
Signed-off-by: David S. Miller

selftests: openvswitch: add explicit drop testcase

2023-08-14T07:01:06+00:00

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 
Signed-off-by: Adrian Moreno 
Signed-off-by: David S. Miller