selftests/bpf: test_xdp_veth: Use a dedicated namespace

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Tests use the root network namespace, so they aren't fully independent
of each other. For instance, the index of the created veth interfaces
is incremented every time a new test is launched.

Wrap the network topology in a network namespace to ensure full
isolation. Use the append_tid() helper to ensure the uniqueness of this
namespace's name during parallel runs.
Remove the use of the append_tid() on the veth names as they now belong
to an already unique namespace.
Simplify cleanup_network() by directly deleting the namespaces

Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250212-redirect-multi-v5-2-fd0d39fca6e6@bootlin.com

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Bastien Curutchet (eBPF Foundation) 2025-02-12 12:11:10 +01:00 • committed by Martin KaFai Lau

parent 6bdac0e317

commit 19a9484c1b

1 changed files with 33 additions and 19 deletions

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tools/testing/selftests/bpf/prog_tests/test_xdp_veth.c

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