selftests/bpf: support BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP

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Exit as soon as we found that packet is encapped when
BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP is passed.
Add appropriate selftest cases.

v2:
* Subtract sizeof(struct iphdr) from .iph_inner.tot_len (Willem de Bruijn)

Acked-by: Petar Penkov <ppenkov@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Petar Penkov <ppenkov@google.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

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Stanislav Fomichev 2019-07-25 15:52:31 -07:00 • committed by Alexei Starovoitov

parent 71c99e32b9

commit e853ae776a

2 changed files with 72 additions and 0 deletions

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64

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

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8

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

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