| Commit message (Collapse) | Author | Age | Files | Lines |
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This test ensures that upon receiving decapsulated packets from a
tunnel interface in openvswitch, the tunnel metadata fields are
properly populated. This partially covers interoperability of the
kernel tunnel ports and openvswitch tunnels (LWT) and parsing and
formatting of the tunnel metadata fields of the openvswitch netlink
uAPI. Doing so, this test also ensures that fields and flags are
properly extracted during decapsulation by the tunnel core code,
serving as a regression test for the previously fixed issue with the
DF bit not being extracted from the outer IP header.
The ovs-dpctl.py script already supports all that is necessary for
the tunnel ports for this test, so we only need to adjust the
ovs_add_if() function to pass the '-t' port type argument in order
to be able to create tunnel ports in the openvswitch datapath.
Reviewed-by: Aaron Conole <[email protected]>
Signed-off-by: Ilya Maximets <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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WiFi removed one of their subsys entries from drop reasons, in
commit 286e69677065 ("wifi: mac80211: Drop cooked monitor support")
SKB_DROP_REASON_SUBSYS_OPENVSWITCH is now 2 not 3.
The drop reasons are not uAPI, read the correct value
from debug info.
We need to enable vmlinux BTF, otherwise pahole needs
a few GB of memory to decode the enum name.
Acked-by: Stanislav Fomichev <[email protected]>
Acked-by: Aaron Conole <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Package build environments like Fedora rpmbuild introduced hardening
options (e.g. -pie -Wl,-z,now) by passing a -spec option to CFLAGS
and LDFLAGS.
Some Makefiles currently override CFLAGS but not LDFLAGS, which leads
to a mismatch and build failure, for example:
/usr/bin/ld: /tmp/ccd2apay.o: relocation R_X86_64_32 against
`.rodata.str1.1' can not be used when making a PIE object; recompile with -fPIE
/usr/bin/ld: failed to set dynamic section sizes: bad value
collect2: error: ld returned 1 exit status
make[1]: *** [../../lib.mk:222: tools/testing/selftests/net/lib/csum] Error 1
openvswitch/Makefile CFLAGS currently do not appear to be used, but
fix it anyway for the case when new tests are introduced in future.
Fixes: 1d0dc857b5d8 ("selftests: drv-net: add checksum tests")
Signed-off-by: Jan Stancek <[email protected]>
Acked-by: Matthieu Baerts (NGI0) <[email protected]>
Reviewed-by: Hangbin Liu <[email protected]>
Link: https://patch.msgid.link/3d173603ee258f419d0403363765c9f9494ff79a.1737635092.git.jstancek@redhat.com
Signed-off-by: Jakub Kicinski <[email protected]>
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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 <[email protected]>
Acked-by: Eelco Chaudron <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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There are a couple of places where the test script "sleep"s to wait for
some external condition to be met.
This is error prone, specially in slow systems (identified in CI by
"KSFT_MACHINE_SLOW=yes").
To fix this, add a "ovs_wait" function that tries to execute a command
a few times until it succeeds. The timeout used is set to 5s for
"normal" systems and doubled if a slow CI machine is detected.
This should make the following work:
$ vng --build \
--config tools/testing/selftests/net/config \
--config kernel/configs/debug.config
$ vng --run . --user root -- "make -C tools/testing/selftests/ \
KSFT_MACHINE_SLOW=yes TARGETS=net/openvswitch run_tests"
Signed-off-by: Adrian Moreno <[email protected]>
Reviewed-by: Ilya Maximets <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Add a test to verify sampling packets via psample works.
In order to do that, create a subcommand in ovs-dpctl.py to listen to
on the psample multicast group and print samples.
Reviewed-by: Aaron Conole <[email protected]>
Tested-by: Ilya Maximets <[email protected]>
Signed-off-by: Adrian Moreno <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The trunc action was supported decode-able but not parse-able. Add
support for parsing the action string.
Reviewed-by: Aaron Conole <[email protected]>
Signed-off-by: Adrian Moreno <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The userspace action lacks parsing support plus it contains a bug in the
name of one of its attributes.
This patch makes userspace action work.
Reviewed-by: Aaron Conole <[email protected]>
Signed-off-by: Adrian Moreno <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Add sample and psample action support to ovs-dpctl.py.
Refactor common attribute parsing logic into an external function.
Reviewed-by: Aaron Conole <[email protected]>
Signed-off-by: Adrian Moreno <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The openvswitch selftest is difficult to debug for anyone that isn't
directly familiar with the openvswitch module and the specifics of the
test cases. Many times when something fails, the debug log will be
sparsely populated and it takes some time to understand where a failure
occured.
Increase the amount of details logged to the debug log by trapping all
'info' logs, and all 'ovs_sbx' commands.
Signed-off-by: Aaron Conole <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Previously, the openvswitch.sh test suites would not attempt to autoload
the openvswitch module. The idea was that a user who is manually running
tests might not even have the OVS module loaded or configured for their
own development. However, if the kernel module is configured, and the
module can be autoloaded then we should just attempt to load it and run
the tests. This is especially true in the CI environments, where the CI
tests should be able to rely on auto loading to get the test suite running.
Signed-off-by: Aaron Conole <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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We found that since some tests rely on the TCP SYN timeouts to cause flow
misses, the default test suite timeout of 45 seconds is quick to be
exceeded. Bump the timeout to 15 minutes.
Signed-off-by: Aaron Conole <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The current pmtu test infrastucture requires an installed copy of the
ovs-vswitchd userspace. This means that any automated or constrained
environments may not have the requisite tools to run the tests. However,
the pmtu tests don't require any special classifier processing. Indeed
they are only using the vswitchd in the most basic mode - as a NORMAL
switch.
However, the ovs-dpctl kernel utility can now program all the needed basic
flows to allow traffic to traverse the tunnels and provide support for at
least testing some basic pmtu scenarios. More complicated flow pipelines
can be added to the internal ovs test infrastructure, but that is work for
the future. For now, enable the most common cases - wide mega flows with
no other prerequisites.
Enhance the pmtu testing to try testing using the internal utility, first.
As a fallback, if the internal utility isn't running, then try with the
ovs-vswitchd userspace tools.
Additionally, make sure that when the pyroute2 package is not available
the ovs-dpctl utility will error out to properly signal an error has
occurred and skip using the internal utility.
Reviewed-by: Stefano Brivio <[email protected]>
Signed-off-by: Aaron Conole <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The current iteration of IPv6 support requires explicit fields to be set
in addition to not properly support the actual IPv6 addresses properly.
With this change, make it so that the ipv6() bare option is usable to
create wildcarded flows to match broad swaths of ipv6 traffic.
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Signed-off-by: Aaron Conole <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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This will be used when setting details about the tunnel to use as
transport. There is a difference between the ODP format between tunnel():
the 'key' flag is not actually a flag field, so we don't support it in the
same way that the vswitchd userspace supports displaying it.
Signed-off-by: Aaron Conole <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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These will be used in upcoming commits to set specific attributes for
interacting with tunnels. Since set() will use the key parsing routine, we
also make sure to prepend it with an open paren, for the action parsing to
properly understand it.
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Signed-off-by: Aaron Conole <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Until recently, the ovs-dpctl utility was used with a limited actions set
and didn't need to have support for multiple similar actions. However,
when adding support for tunnels, it will be important to support multiple
set() actions in a single flow. When printing these actions, the existing
code will be unable to print all of the sets - it will only print the
first.
Refactor this code to be easier to read and support multiple actions of the
same type in an action list.
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Signed-off-by: Aaron Conole <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The OVS module can operate in conjunction with various types of
tunnel ports. These are created as either explicit tunnel vport
types, OR by creating a tunnel interface which acts as an anchor
for the lightweight tunnel support.
This patch adds the ability to add tunnel ports to an OVS
datapath for testing various scenarios with tunnel ports. With
this addition, the vswitch "plumbing" will at least be able to
push packets around using the tunnel vports. Future patches
will add support for setting required tunnel metadata for lwts
in the datapath. The end goal will be to push packets via these
tunnels, and will be used in an upcoming commit for testing the
path MTU.
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Simon Horman <[email protected]>
Signed-off-by: Aaron Conole <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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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 <module>
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 <[email protected]>
Acked-by: Aaron Conole <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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 <[email protected]>
Reviewed-by: Przemek Kitszel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Character sequences starting with `\` are interpreted by python as
escaped Unicode characters. However, they have other meaning in
regular expressions (e.g: "\d").
It seems Python >= 3.12 starts emitting a SyntaxWarning when these
escaped sequences are not recognized as valid Unicode characters.
An example of these warnings:
tools/testing/selftests/net/openvswitch/ovs-dpctl.py:505:
SyntaxWarning: invalid escape sequence '\d'
Fix all the warnings by flagging literals as raw strings.
Signed-off-by: Adrian Moreno <[email protected]>
Reviewed-by: Aaron Conole <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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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 <[email protected]>
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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 <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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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/[email protected]/
Link: https://mail.openvswitch.org/pipermail/ovs-dev/2024-January/410476.html
Suggested-by: Aaron Conole <[email protected]>
Signed-off-by: Brad Cowie <[email protected]>
Tested-by: Aaron Conole <[email protected]>
Acked-by: Aaron Conole <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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 <[email protected]>
Closes: https://lore.kernel.org/lkml/[email protected]/
Signed-off-by: Aaron Conole <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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 <[email protected]>
Signed-off-by: Adrian Moreno <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Test if the correct drop reason is reported when OVS drops a packet due
to an explicit flow.
Acked-by: Aaron Conole <[email protected]>
Signed-off-by: Adrian Moreno <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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From: Eric Garver <[email protected]>
This adds an explicit drop action. This is used by OVS to drop packets
for which it cannot determine what to do. An explicit action in the
kernel allows passing the reason _why_ the packet is being dropped or
zero to indicate no particular error happened (i.e: OVS intentionally
dropped the packet).
Since the error codes coming from userspace mean nothing for the kernel,
we squash all of them into only two drop reasons:
- OVS_DROP_EXPLICIT_WITH_ERROR to indicate a non-zero value was passed
- OVS_DROP_EXPLICIT to indicate a zero value was passed (no error)
e.g. trace all OVS dropped skbs
# perf trace -e skb:kfree_skb --filter="reason >= 0x30000"
[..]
106.023 ping/2465 skb:kfree_skb(skbaddr: 0xffffa0e8765f2000, \
location:0xffffffffc0d9b462, protocol: 2048, reason: 196611)
reason: 196611 --> 0x30003 (OVS_DROP_EXPLICIT)
Also, this patch allows ovs-dpctl.py to add explicit drop actions as:
"drop" -> implicit empty-action drop
"drop(0)" -> explicit non-error action drop
"drop(42)" -> explicit error action drop
Signed-off-by: Eric Garver <[email protected]>
Co-developed-by: Adrian Moreno <[email protected]>
Signed-off-by: Adrian Moreno <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Building on the previous work, add a very simplistic NAT case
using ipv4. This just tests dnat transformation
Signed-off-by: Aaron Conole <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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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 <[email protected]>
Reviewed-by: Adrian Moreno <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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This is a simple ipv4 bidirectional connectivity test.
Signed-off-by: Aaron Conole <[email protected]>
Reviewed-by: Adrian Moreno <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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The default value for the mask actually depends on the value (e.g: if
the value is non-null, the default is full-mask), so change the convert
functions to accept the full, possibly masked string and let them figure
out how to parse the different values.
Also, implement size-aware int parsing.
With this patch we can now express flows such as the following:
"eth(src=0a:ca:fe:ca:fe:0a/ff:ff:00:00:ff:00)"
"eth(src=0a:ca:fe:ca:fe:0a)" -> mask = ff:ff:ff:ff:ff:ff
"ipv4(src=192.168.1.1)" -> mask = 255.255.255.255
"ipv4(src=192.168.1.1/24)"
"ipv4(src=192.168.1.1/255.255.255.0)"
"tcp(src=8080)" -> mask = 0xffff
"tcp(src=8080/0xf0f0)"
Signed-off-by: Adrian Moreno <[email protected]>
Acked-by: Aaron Conole <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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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 <[email protected]>
Reviewed-by: Adrian Moreno <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add a basic set of fields to print in a 'dpflow' format. This will be
used by future commits to check for flow fields after parsing, as
well as verifying the flow fields pushed into the kernel from
userspace.
Signed-off-by: Aaron Conole <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The netlink message for creating a new datapath takes an array
of ports for the PID creation. This shouldn't cause much issue
but correct it for future cases where we need to do decode of
datapath information that could include the per-cpu PID map.
Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite")
Signed-off-by: Aaron Conole <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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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 <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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