From: Benjamin Warnke <4bwarnke@informatik.uni-hamburg.de> Subject: [PATCH v7 5/5] crypto: add flag for unstable encoding Date: Fri, 13 Apr 2018 17:48:40 +0200 Message-ID: <20180413154840.5901-6-4bwarnke@informatik.uni-hamburg.de> References: <20180413154840.5901-1-4bwarnke@informatik.uni-hamburg.de> Cc: Benjamin Warnke <4bwarnke@informatik.uni-hamburg.de> To: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, minchan@kernel.org, sergey.senozhatsky.work@gmail.com, ngupta@vflare.org, pombredanne@nexb.com, ebiggers3@gmail.com, smueller@chronox.de Return-path: In-Reply-To: <20180413154840.5901-1-4bwarnke@informatik.uni-hamburg.de> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org The data-format of zBeWalgo, and some other algorithms is unstable. To identify such unstable algorithms this patch adds a new flag to the crypto-api. Signed-off-by: Benjamin Warnke <4bwarnke@informatik.uni-hamburg.de> --- crypto/zbewalgo.c | 2 +- include/linux/crypto.h | 6 ++++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/crypto/zbewalgo.c b/crypto/zbewalgo.c index 9db0d43b..e57b5ced 100644 --- a/crypto/zbewalgo.c +++ b/crypto/zbewalgo.c @@ -134,7 +134,7 @@ static int zbewalgo_decompress_crypto_unsafe(struct crypto_tfm *tfm, static struct crypto_alg crypto_alg_zbewalgo = { .cra_name = "zbewalgo", - .cra_flags = CRYPTO_ALG_TYPE_COMPRESS, + .cra_flags = CRYPTO_ALG_TYPE_COMPRESS | CRYPTO_ALG_UNSTABLE_ENCODING, .cra_ctxsize = sizeof(struct zbewalgo_ctx), .cra_module = THIS_MODULE, .cra_init = zbewalgo_init, diff --git a/include/linux/crypto.h b/include/linux/crypto.h index 6bfb1aea..2228dd08 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -112,6 +112,12 @@ */ #define CRYPTO_ALG_OPTIONAL_KEY 0x00004000 +/* + * Set if the algorithm is new and it is likely that the encoding may + * change in near future + */ +#define CRYPTO_ALG_UNSTABLE_ENCODING 0x00008000 + /* * Transform masks and values (for crt_flags). */ -- 2.14.1