crypto: clmulni - mark ghash clmulni helper ciphers

Flag all ash clmulni helper ciphers as internal ciphers to prevent them
from being called by normal users.

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 5 insertions, 2 deletions

diff --git a/arch/x86/crypto/ghash-clmulni-intel_glue.c b/arch/x86/crypto/ghash-clmulni-intel_glue.c
index 8253d85aa165..2079baf06bdd 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_glue.c
+++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c
@@ -154,7 +154,8 @@ static struct shash_alg ghash_alg = {
                 .cra_name               = "__ghash",
                 .cra_driver_name        = "__ghash-pclmulqdqni",
                 .cra_priority           = 0,
-                .cra_flags              = CRYPTO_ALG_TYPE_SHASH,
+                .cra_flags              = CRYPTO_ALG_TYPE_SHASH |
+                                          CRYPTO_ALG_INTERNAL,
                 .cra_blocksize          = GHASH_BLOCK_SIZE,
                 .cra_ctxsize            = sizeof(struct ghash_ctx),
                 .cra_module             = THIS_MODULE,
@@ -261,7 +262,9 @@ static int ghash_async_init_tfm(struct crypto_tfm *tfm)
         struct cryptd_ahash *cryptd_tfm;
         struct ghash_async_ctx *ctx = crypto_tfm_ctx(tfm);
 
-        cryptd_tfm = cryptd_alloc_ahash("__ghash-pclmulqdqni", 0, 0);
+        cryptd_tfm = cryptd_alloc_ahash("__ghash-pclmulqdqni",
+                                        CRYPTO_ALG_INTERNAL,
+                                        CRYPTO_ALG_INTERNAL);
         if (IS_ERR(cryptd_tfm))
                 return PTR_ERR(cryptd_tfm);
         ctx->cryptd_tfm = cryptd_tfm;