linux-stable.git/tools/testing/selftests/net/forwarding/lib.sh, branch linux-5.17.y

selftests: lib.sh: Add PING_COUNT to allow sending configurable amount of packets

2021-12-23T01:14:32+00:00

Currently `ping_do()` and `ping6_do()` send 10 packets.

There are cases that it is not possible to catch only the interesting
packets using tc rule, so then, it is possible to send many packets and
verify that at least this amount of packets hit the rule.

Add `PING_COUNT` variable, which is set to 10 by default, to allow tests
sending more than 10 packets using the existing ping API.

Signed-off-by: Amit Cohen 
Reviewed-by: Petr Machata 
Signed-off-by: Jakub Kicinski

selftests: mlxsw: Add helpers for skipping selftests

2021-10-25T13:10:11+00:00

A number of mlxsw-specific selftests currently detect whether they are run
on a compatible machine, and bail out silently when not. These tests are
however done in a somewhat impenetrable manner by directly comparing PCI
IDs against a blacklist or a whitelist, and bailing out silently if the
machine is not compatible.

Instead, add a helper, mlxsw_only_on_spectrum(), which allows specifying
the supported machines in a human-readable manner. If the current machine
is incompatible, the helper emits a SKIP message and returns an error code,
based on which the caller can gracefully bail out in a suitable way. This
allows a more readable conditions such as:

	mlxsw_only_on_spectrum 2+ || return

Convert all existing open-coded guards to the new helper. Also add two new
guards to do_mark_test() and do_drop_test(), which are supported only on
Spectrum-2+, but the corresponding check was not there.

Signed-off-by: Petr Machata 
Signed-off-by: Ido Schimmel 
Signed-off-by: David S. Miller

selftests: lib: forwarding: allow tests to not require mz and jq

2021-10-25T11:59:42+00:00

These programs are useful, but not all selftests require them.

Additionally, on embedded boards without package management (things like
buildroot), installing mausezahn or jq is not always as trivial as
downloading a package from the web.

So it is actually a bit annoying to require programs that are not used.
Introduce options that can be set by scripts to not enforce these
dependencies. For compatibility, default to "yes".

Cc: Nikolay Aleksandrov 
Cc: Ido Schimmel 
Cc: Guillaume Nault 
Cc: Po-Hsu Lin 
Signed-off-by: Vladimir Oltean 
Reviewed-by: Florian Fainelli 
Reviewed-by: Ido Schimmel 
Signed-off-by: David S. Miller

Revert "Merge branch 'dsa-rtnl'"

2021-10-25T11:59:25+00:00

This reverts commit 965e6b262f48257dbdb51b565ecfd84877a0ab5f, reversing
changes made to 4d98bb0d7ec2d0b417df6207b0bafe1868bad9f8.

selftests: lib: forwarding: allow tests to not require mz and jq

2021-10-24T12:47:45+00:00

These programs are useful, but not all selftests require them.

Additionally, on embedded boards without package management (things like
buildroot), installing mausezahn or jq is not always as trivial as
downloading a package from the web.

So it is actually a bit annoying to require programs that are not used.
Introduce options that can be set by scripts to not enforce these
dependencies. For compatibility, default to "yes".

Cc: Nikolay Aleksandrov 
Cc: Ido Schimmel 
Cc: Guillaume Nault 
Cc: Po-Hsu Lin 
Signed-off-by: Vladimir Oltean 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

ipv6: When forwarding count rx stats on the orig netdev

2021-10-15T22:32:04+00:00

Commit bdb7cc643fc9 ("ipv6: Count interface receive statistics on the
ingress netdev") does not work when ip6_forward() executes on the skbs
with vrf-enslaved netdev. Use IP6CB(skb)->iif to get to the right one.

Add a selftest script to verify.

Fixes: bdb7cc643fc9 ("ipv6: Count interface receive statistics on the ingress netdev")
Signed-off-by: Stephen Suryaputra 
Reviewed-by: David Ahern 
Link: https://lore.kernel.org/r/20211014130845.410602-1-ssuryaextr@gmail.com
Signed-off-by: Jakub Kicinski

selftests/net: Use kselftest skip code for skipped tests

2021-08-24T23:49:09+00:00

There are several test cases in the net directory are still using
exit 0 or exit 1 when they need to be skipped. Use kselftest
framework skip code instead so it can help us to distinguish the
return status.

Criterion to filter out what should be fixed in net directory:
  grep -r "exit [01]" -B1 | grep -i skip

This change might cause some false-positives if people are running
these test scripts directly and only checking their return codes,
which will change from 0 to 4. However I think the impact should be
small as most of our scripts here are already using this skip code.
And there will be no such issue if running them with the kselftest
framework.

Signed-off-by: Po-Hsu Lin 
Reviewed-by: Ido Schimmel 
Tested-by: Ido Schimmel 
Link: https://lore.kernel.org/r/20210823085854.40216-1-po-hsu.lin@canonical.com
Signed-off-by: Jakub Kicinski

selftests: forwarding: Add tc-police tests for packets per second

2021-03-29T00:48:28+00:00

Test tc-police action for packets per second.
The test is mainly in scenarios Rx policing and Tx policing.
The test passes with veth pairs ports.

Signed-off-by: Baowen Zheng 
Signed-off-by: Simon Horman 
Signed-off-by: David S. Miller

selftests: mlxsw: Add resilient nexthop groups configuration tests

2021-03-24T23:34:58+00:00

Test that unsupported resilient nexthop group configurations are
rejected and that offload / trap indication is correctly set on nexthop
buckets in a resilient group.

Signed-off-by: Ido Schimmel 
Reviewed-by: Petr Machata 
Signed-off-by: David S. Miller

selftests: tc: Add generic mpls matching support for tc-flower

2021-02-13T01:13:52+00:00

Add tests in tc_flower.sh for generic matching on MPLS Label Stack
Entries. The label, tc, bos and ttl fields are tested for the first
and second labels. For each field, the minimal and maximal values are
tested (the former at depth 1 and the later at depth 2).
There are also tests for matching the presence of a label stack entry
at a given depth.

In order to reduce the amount of code, all "lse" subcommands are tested
in match_mpls_lse_test(). Action "continue" is used, so that test
packets are evaluated by all filters. Then, we can verify if each
filter matched the expected number of packets.

Some versions of tc-flower produced invalid json output when dumping
MPLS filters with depth > 1. Skip the test if tc isn't recent enough.

Signed-off-by: Guillaume Nault 
Signed-off-by: David S. Miller