Commit 555fa17b authored by Stephan Mueller's avatar Stephan Mueller Committed by Herbert Xu
Browse files

crypto: sha-mb - mark Multi buffer SHA1 helper cipher 



Flag all Multi buffer SHA1 helper ciphers as internal ciphers
to prevent them from being called by normal users.

Signed-off-by: default avatarStephan Mueller <smueller@chronox.de>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent f52bbf55

arch/x86/crypto/sha-mb/sha1_mb.c

+5 −2
Original line number Diff line number Diff line
@@ -694,7 +694,8 @@ static struct shash_alg sha1_mb_shash_alg = { 
		 * use ASYNC flag as some buffers in multi-buffer

		 * algo may not have completed before hashing thread sleep

		 */

		.cra_flags	 = CRYPTO_ALG_TYPE_SHASH | CRYPTO_ALG_ASYNC,

		.cra_flags	 = CRYPTO_ALG_TYPE_SHASH | CRYPTO_ALG_ASYNC |

				   CRYPTO_ALG_INTERNAL,

		.cra_blocksize	 = SHA1_BLOCK_SIZE,

		.cra_module	 = THIS_MODULE,

		.cra_list	 = LIST_HEAD_INIT(sha1_mb_shash_alg.base.cra_list),
@@ -770,7 +771,9 @@ static int sha1_mb_async_init_tfm(struct crypto_tfm *tfm) 
	struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);

	struct mcryptd_hash_ctx *mctx;



	mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha1-mb", 0, 0);

	mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha1-mb",

					  CRYPTO_ALG_INTERNAL,

					  CRYPTO_ALG_INTERNAL);

	if (IS_ERR(mcryptd_tfm))

		return PTR_ERR(mcryptd_tfm);

	mctx = crypto_ahash_ctx(&mcryptd_tfm->base);