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>

diff --git a/arch/x86/crypto/ghash-clmulni-intel_glue.c b/arch/x86/crypto/ghash-clmulni-intel_glue.c
index 8253d85aa16508f19249e1f3cee91356c565d1e3..2079baf06bdd3b64e7f61ec3fecf088c4bd8bc24 100644 (file)
--- 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;