cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sha.h (1928B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
      4 */
      5
      6#ifndef _SHA_H_
      7#define _SHA_H_
      8
      9#include <crypto/scatterwalk.h>
     10#include <crypto/sha1.h>
     11#include <crypto/sha2.h>
     12
     13#include "common.h"
     14#include "core.h"
     15
     16#define QCE_SHA_MAX_BLOCKSIZE		SHA256_BLOCK_SIZE
     17#define QCE_SHA_MAX_DIGESTSIZE		SHA256_DIGEST_SIZE
     18
     19struct qce_sha_ctx {
     20	u8 authkey[QCE_SHA_MAX_BLOCKSIZE];
     21};
     22
     23/**
     24 * struct qce_sha_reqctx - holds private ahash objects per request
     25 * @buf: used during update, import and export
     26 * @tmpbuf: buffer for internal use
     27 * @digest: calculated digest buffer
     28 * @buflen: length of the buffer
     29 * @flags: operation flags
     30 * @src_orig: original request sg list
     31 * @nbytes_orig: original request number of bytes
     32 * @src_nents: source number of entries
     33 * @byte_count: byte count
     34 * @count: save count in states during update, import and export
     35 * @first_blk: is it the first block
     36 * @last_blk: is it the last block
     37 * @sg: used to chain sg lists
     38 * @authkey: pointer to auth key in sha ctx
     39 * @authklen: auth key length
     40 * @result_sg: scatterlist used for result buffer
     41 */
     42struct qce_sha_reqctx {
     43	u8 buf[QCE_SHA_MAX_BLOCKSIZE];
     44	u8 tmpbuf[QCE_SHA_MAX_BLOCKSIZE];
     45	u8 digest[QCE_SHA_MAX_DIGESTSIZE];
     46	unsigned int buflen;
     47	unsigned long flags;
     48	struct scatterlist *src_orig;
     49	unsigned int nbytes_orig;
     50	int src_nents;
     51	__be32 byte_count[2];
     52	u64 count;
     53	bool first_blk;
     54	bool last_blk;
     55	struct scatterlist sg[2];
     56	u8 *authkey;
     57	unsigned int authklen;
     58	struct scatterlist result_sg;
     59};
     60
     61static inline struct qce_alg_template *to_ahash_tmpl(struct crypto_tfm *tfm)
     62{
     63	struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
     64	struct ahash_alg *alg = container_of(crypto_hash_alg_common(ahash),
     65					     struct ahash_alg, halg);
     66
     67	return container_of(alg, struct qce_alg_template, alg.ahash);
     68}
     69
     70extern const struct qce_algo_ops ahash_ops;
     71
     72#endif /* _SHA_H_ */