bpf: selftest: Use bpf_sk_storage in FENTRY/FEXIT/RAW_TP

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This patch tests storing the task's related info into the
bpf_sk_storage by fentry/fexit tracing at listen, accept,
and connect.  It also tests the raw_tp at inet_sock_set_state.

A negative test is done by tracing the bpf_sk_storage_free()
and using bpf_sk_storage_get() at the same time.  It ensures
this bpf program cannot load.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201112211320.2587537-1-kafai@fb.com

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Martin KaFai Lau 2020-11-12 13:13:20 -08:00 • committed by Alexei Starovoitov

parent 8e4597c627

commit 53632e1119

3 changed files with 259 additions and 0 deletions

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135

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

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29

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

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95

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

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