selftests/bpf: Test bpf_sysctl_get_name helper

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Test w/ and w/o BPF_F_SYSCTL_BASE_NAME, buffers with enough space and
too small buffers to get E2BIG and truncated result, etc.

  # ./test_sysctl
  ...
  Test case: sysctl_get_name sysctl_value:base ok .. [PASS]
  Test case: sysctl_get_name sysctl_value:base E2BIG truncated .. [PASS]
  Test case: sysctl_get_name sysctl:full ok .. [PASS]
  Test case: sysctl_get_name sysctl:full E2BIG truncated .. [PASS]
  Test case: sysctl_get_name sysctl:full E2BIG truncated small .. [PASS]
  Summary: 11 PASSED, 0 FAILED

Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

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Andrey Ignatov 2019-03-08 15:13:43 -08:00 • committed by Alexei Starovoitov

parent 1f5fa9ab6e

commit 6041c67f28

1 changed files with 222 additions and 0 deletions

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tools/testing/selftests/bpf/test_sysctl.c

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