selftests: ovpn: add test for the FW mark feature

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Add a selftest to verify that the FW mark socket option is correctly
supported and its value propagated by ovpn.

The test adds and removes nftables DROP rules based on the mark value,
and checks that the rule counter aligns with the number of lost ping
packets.

Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Cc: horms@kernel.org
Signed-off-by: Ralf Lici <ralf@mandelbit.com>
Signed-off-by: Antonio Quartulli <antonio@openvpn.net>

...

This commit is contained in:

Ralf Lici 2025-11-19 11:56:52 +01:00 • committed by Antonio Quartulli

parent 367f4b163a

commit 7b80d8a335

3 changed files with 119 additions and 1 deletions

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1

tools/testing/selftests/net/ovpn/Makefile

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23

tools/testing/selftests/net/ovpn/ovpn-cli.c

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96

tools/testing/selftests/net/ovpn/test-mark.sh Executable file

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