selftests/bpf: extend bpf tunnel test with gre

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GRE is a commonly used protocol. Add GRE cases for both IPv4 and IPv6.

It also inserts different sized headers, which can expose some
unexpected edge cases.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Willem de Bruijn 2019-03-22 14:32:52 -04:00 • committed by Alexei Starovoitov

parent ef81bd0549

commit 7255fade7b

2 changed files with 123 additions and 46 deletions

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148

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

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21

tools/testing/selftests/bpf/test_tc_tunnel.sh

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