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charset=UTF-8 Content-Transfer-Encoding: 8bit Add a selftest that checks whether the kernel can successfully echo a big tc filter, to test the fix introduced in commit: 369609fc6272 ("tc: Ensure we have enough buffer space when sending filter netlink notifications") Signed-off-by: Toke Høiland-Jørgensen --- .../tc-testing/tc-tests/filters/u32.json | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json b/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json index b2ca9d4e991b..67117f86fef0 100644 --- a/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json +++ b/tools/testing/selftests/tc-testing/tc-tests/filters/u32.json @@ -353,5 +353,27 @@ "teardown": [ "$TC qdisc del dev $DEV1 parent root drr" ] + }, + { + "id": "33f4", + "name": "Check echo of big filter command", + "category": [ + "filter", + "u32" + ], + "plugins": { + "requires": "nsPlugin" + }, + "setup": [ + "$TC qdisc add dev $DEV1 parent root handle 10: fq_codel" + ], + "cmdUnderTest": "bash -c '$TC -echo filter add dev $DEV1 parent 10: u32 match u32 0 0 $(for i in $(seq 32); do echo action pedit munge ip dport set 22; done) | grep \"added filter\"'", + "verifyCmd": "", + "expExitCode": "0", + "matchCount": "0", + "matchPattern": "", + "teardown": [ + "$TC qdisc del dev $DEV1 parent root fq_codel" + ] } ] -- 2.49.0