linux/include/crypto/null.h
Kees Cook 8d60539842 crypto: null - Remove VLA usage of skcipher
In the quest to remove all stack VLA usage from the kernel[1], this
replaces struct crypto_skcipher and SKCIPHER_REQUEST_ON_STACK() usage
with struct crypto_sync_skcipher and SYNC_SKCIPHER_REQUEST_ON_STACK(),
which uses a fixed stack size.

[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-09-28 12:46:08 +08:00

16 lines
346 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/* Values for NULL algorithms */
#ifndef _CRYPTO_NULL_H
#define _CRYPTO_NULL_H
#define NULL_KEY_SIZE 0
#define NULL_BLOCK_SIZE 1
#define NULL_DIGEST_SIZE 0
#define NULL_IV_SIZE 0
struct crypto_sync_skcipher *crypto_get_default_null_skcipher(void);
void crypto_put_default_null_skcipher(void);
#endif