crypto: testmgr - Skip algs not flagged fips_allowed in fips mode

Because all fips-allowed algorithms must be self-tested before they
can be used, they will all have entries in testmgr.c's alg_test_descs[].
Skip self-tests for any algs not flagged as fips_approved and return
-EINVAL when in fips mode.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 8 insertions, 0 deletions

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 51bae62c332a..f93b26d0fcfb 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -2308,6 +2308,9 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
                 if (i < 0)
                         goto notest;
 
+                if (fips_enabled && !alg_test_descs[i].fips_allowed)
+                        goto non_fips_alg;
+
                 rc = alg_test_cipher(alg_test_descs + i, driver, type, mask);
                 goto test_done;
         }
@@ -2316,6 +2319,9 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
         if (i < 0)
                 goto notest;
 
+        if (fips_enabled && !alg_test_descs[i].fips_allowed)
+                goto non_fips_alg;
+
         rc = alg_test_descs[i].test(alg_test_descs + i, driver,
                                       type, mask);
 test_done:
@@ -2331,5 +2337,7 @@ test_done:
 notest:
         printk(KERN_INFO "alg: No test for %s (%s)\n", alg, driver);
         return 0;
+non_fips_alg:
+        return -EINVAL;
 }
 EXPORT_SYMBOL_GPL(alg_test);