selftest: bpf: Test copying a sockmap and sockhash

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Since we can now call map_update_elem(sockmap) from bpf_iter context
it's possible to copy a sockmap or sockhash in the kernel. Add a
selftest which exercises this.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200928090805.23343-5-lmb@cloudflare.com

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Lorenz Bauer 2020-09-28 10:08:05 +01:00 • committed by Alexei Starovoitov

parent 2787031733

commit 5b87adc3ce

2 changed files with 30 additions and 11 deletions

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14

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

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27

tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c

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