2019-05-29 22:17:58 +08:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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2014-06-26 00:28:57 +08:00
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/*
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* Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
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*/
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#ifndef _SHA_H_
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#define _SHA_H_
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#include <crypto/scatterwalk.h>
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#include <crypto/sha.h>
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#include "common.h"
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#include "core.h"
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#define QCE_SHA_MAX_BLOCKSIZE SHA256_BLOCK_SIZE
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#define QCE_SHA_MAX_DIGESTSIZE SHA256_DIGEST_SIZE
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struct qce_sha_ctx {
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u8 authkey[QCE_SHA_MAX_BLOCKSIZE];
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};
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/**
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* struct qce_sha_reqctx - holds private ahash objects per request
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* @buf: used during update, import and export
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* @tmpbuf: buffer for internal use
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* @digest: calculated digest buffer
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* @buflen: length of the buffer
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* @flags: operation flags
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* @src_orig: original request sg list
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* @nbytes_orig: original request number of bytes
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* @src_nents: source number of entries
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* @byte_count: byte count
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* @count: save count in states during update, import and export
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* @first_blk: is it the first block
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* @last_blk: is it the last block
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* @sg: used to chain sg lists
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* @authkey: pointer to auth key in sha ctx
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* @authklen: auth key length
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* @result_sg: scatterlist used for result buffer
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*/
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struct qce_sha_reqctx {
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u8 buf[QCE_SHA_MAX_BLOCKSIZE];
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u8 tmpbuf[QCE_SHA_MAX_BLOCKSIZE];
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u8 digest[QCE_SHA_MAX_DIGESTSIZE];
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unsigned int buflen;
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unsigned long flags;
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struct scatterlist *src_orig;
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unsigned int nbytes_orig;
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int src_nents;
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__be32 byte_count[2];
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u64 count;
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bool first_blk;
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bool last_blk;
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struct scatterlist sg[2];
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u8 *authkey;
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unsigned int authklen;
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struct scatterlist result_sg;
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};
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static inline struct qce_alg_template *to_ahash_tmpl(struct crypto_tfm *tfm)
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{
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struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
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struct ahash_alg *alg = container_of(crypto_hash_alg_common(ahash),
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struct ahash_alg, halg);
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return container_of(alg, struct qce_alg_template, alg.ahash);
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}
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extern const struct qce_algo_ops ahash_ops;
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#endif /* _SHA_H_ */
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