[PATCH v3 0/4] Check if FIPS mode is enabled when running selftests

[Magali Lemes]

Some test cases from net/tls, net/fcnal-test and net/vrf-xfrm-tests
that rely on cryptographic functions to work and use non-compliant FIPS
algorithms fail in FIPS mode.

In order to allow these tests to pass in a wider set of kernels,
 - for net/tls, skip the test variants that use the ChaCha20-Poly1305
and SM4 algorithms, when FIPS mode is enabled;
 - for net/fcnal-test, skip the MD5 tests, when FIPS mode is enabled;
 - for net/vrf-xfrm-tests, replace the algorithms that are not
FIPS-compliant with compliant ones.

Changes in v3:
 - Add new commit to allow skipping test directly from test setup.
 - No need to initialize static variable to zero.
 - Skip tests during test setup only.
 - Use the constructor attribute to set fips_enabled before entering
 main().

Changes in v2:
 - Add R-b tags.
 - Put fips_non_compliant into the variants.
 - Turn fips_enabled into a static global variable.
 - Read /proc/sys/crypto/fips_enabled only once at main().

v1: https://lore.kernel.org/netdev/20230607174302.19542-1-magali.lemes@xxxxxxxxxxxxx/
v2: https://lore.kernel.org/netdev/20230609164324.497813-1-magali.lemes@xxxxxxxxxxxxx/

Magali Lemes (4):
  selftests/harness: allow tests to be skipped during setup
  selftests: net: tls: check if FIPS mode is enabled
  selftests: net: vrf-xfrm-tests: change authentication and encryption
    algos
  selftests: net: fcnal-test: check if FIPS mode is enabled

 tools/testing/selftests/kselftest_harness.h   |  6 ++--
 tools/testing/selftests/net/fcnal-test.sh     | 27 +++++++++++-----
 tools/testing/selftests/net/tls.c             | 25 ++++++++++++++-
 tools/testing/selftests/net/vrf-xfrm-tests.sh | 32 +++++++++----------
 4 files changed, 62 insertions(+), 28 deletions(-)

-- 
2.34.1