selftests/bpf: Add test cases to test narrower ctx field loads

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Add test cases in test_verifier and test_progs.
Negative tests are added in test_verifier as well.
The test in test_progs will compare the value of narrower ctx field
load result vs. the masked value of normal full-field load result,
and will fail if they are not the same.

Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Yonghong Song 2017-06-13 15:52:14 -07:00 • committed by David S. Miller

parent 31fd85816d

commit 18f3d6be6b

4 changed files with 234 additions and 1 deletions

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3

tools/testing/selftests/bpf/Makefile

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35

tools/testing/selftests/bpf/test_pkt_md_access.c

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21

tools/testing/selftests/bpf/test_progs.c

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176

tools/testing/selftests/bpf/test_verifier.c

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