bpf: add various test cases to selftests

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Add various map value pointer related test cases to test_verifier
kselftest to reflect recent changes and improve test coverage. The
tests include basic masking functionality, unprivileged behavior
on pointer arithmetic which goes oob, mixed bounds tests, negative
unknown scalar but resulting positive offset for access and helper
range, handling of arithmetic from multiple maps, various masking
scenarios with subsequent map value access and others including two
test cases from Jann Horn for prior fixes.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Daniel Borkmann 2019-01-03 00:58:35 +01:00 committed by Alexei Starovoitov

parent 979d63d50c

commit 80c9b2fae8

1 changed files with 1105 additions and 3 deletions

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tools/testing/selftests/bpf/test_verifier.c

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