bpf: selftest: Add test_btf_skc_cls_ingress

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This patch attaches a classifier prog to the ingress filter.
It exercises the following helpers with different socket pointer
types in different logical branches:
1. bpf_sk_release()
2. bpf_sk_assign()
3. bpf_skc_to_tcp_request_sock(), bpf_skc_to_tcp_sock()
4. bpf_tcp_gen_syncookie, bpf_tcp_check_syncookie

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200925000458.3859627-1-kafai@fb.com

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Martin KaFai Lau 2020-09-24 17:04:58 -07:00 • committed by Alexei Starovoitov

parent 0c402c6c30

commit 9a856cae22

3 changed files with 413 additions and 0 deletions

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5

tools/testing/selftests/bpf/bpf_tcp_helpers.h

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234

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

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174

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

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