diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-14 13:40:42 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-14 13:40:42 -0700 |
commit | 3b23e665b68387f5ee7b21f7b75ceea4d9acae4a (patch) | |
tree | f68ddc11e1a3bb068f6d3d16c15da5e91df4dd84 /include/crypto/hash.h | |
parent | 6c118e43dc513a7118b49b9ff953fe61e14515dc (diff) | |
parent | 090657e423f45a77151943f50165ae9565bfbf33 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (50 commits)
crypto: ixp4xx - Select CRYPTO_AUTHENC
crypto: s390 - Respect STFL bit
crypto: talitos - Add support for sha256 and md5 variants
crypto: hash - Move ahash functions into crypto/hash.h
crypto: crc32c - Add ahash implementation
crypto: hash - Added scatter list walking helper
crypto: prng - Deterministic CPRNG
crypto: hash - Removed vestigial ahash fields
crypto: hash - Fixed digest size check
crypto: rmd - sparse annotations
crypto: rmd128 - sparse annotations
crypto: camellia - Use kernel-provided bitops, unaligned access helpers
crypto: talitos - Use proper form for algorithm driver names
crypto: talitos - Add support for 3des
crypto: padlock - Make module loading quieter when hardware isn't available
crypto: tcrpyt - Remove unnecessary kmap/kunmap calls
crypto: ixp4xx - Hardware crypto support for IXP4xx CPUs
crypto: talitos - Freescale integrated security engine (SEC) driver
[CRYPTO] tcrypt: Add self test for des3_ebe cipher operating in cbc mode
[CRYPTO] rmd: Use pointer form of endian swapping operations
...
Diffstat (limited to 'include/crypto/hash.h')
-rw-r--r-- | include/crypto/hash.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h new file mode 100644 index 000000000000..d12498ec8a4e --- /dev/null +++ b/include/crypto/hash.h @@ -0,0 +1,154 @@ +/* + * Hash: Hash algorithms under the crypto API + * + * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ + +#ifndef _CRYPTO_HASH_H +#define _CRYPTO_HASH_H + +#include <linux/crypto.h> + +struct crypto_ahash { + struct crypto_tfm base; +}; + +static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm) +{ + return (struct crypto_ahash *)tfm; +} + +static inline struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, + u32 type, u32 mask) +{ + type &= ~CRYPTO_ALG_TYPE_MASK; + mask &= ~CRYPTO_ALG_TYPE_MASK; + type |= CRYPTO_ALG_TYPE_AHASH; + mask |= CRYPTO_ALG_TYPE_AHASH_MASK; + + return __crypto_ahash_cast(crypto_alloc_base(alg_name, type, mask)); +} + +static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm) +{ + return &tfm->base; +} + +static inline void crypto_free_ahash(struct crypto_ahash *tfm) +{ + crypto_free_tfm(crypto_ahash_tfm(tfm)); +} + +static inline unsigned int crypto_ahash_alignmask( + struct crypto_ahash *tfm) +{ + return crypto_tfm_alg_alignmask(crypto_ahash_tfm(tfm)); +} + +static inline struct ahash_tfm *crypto_ahash_crt(struct crypto_ahash *tfm) +{ + return &crypto_ahash_tfm(tfm)->crt_ahash; +} + +static inline unsigned int crypto_ahash_digestsize(struct crypto_ahash *tfm) +{ + return crypto_ahash_crt(tfm)->digestsize; +} + +static inline u32 crypto_ahash_get_flags(struct crypto_ahash *tfm) +{ + return crypto_tfm_get_flags(crypto_ahash_tfm(tfm)); +} + +static inline void crypto_ahash_set_flags(struct crypto_ahash *tfm, u32 flags) +{ + crypto_tfm_set_flags(crypto_ahash_tfm(tfm), flags); +} + +static inline void crypto_ahash_clear_flags(struct crypto_ahash *tfm, u32 flags) +{ + crypto_tfm_clear_flags(crypto_ahash_tfm(tfm), flags); +} + +static inline struct crypto_ahash *crypto_ahash_reqtfm( + struct ahash_request *req) +{ + return __crypto_ahash_cast(req->base.tfm); +} + +static inline unsigned int crypto_ahash_reqsize(struct crypto_ahash *tfm) +{ + return crypto_ahash_crt(tfm)->reqsize; +} + +static inline int crypto_ahash_setkey(struct crypto_ahash *tfm, + const u8 *key, unsigned int keylen) +{ + struct ahash_tfm *crt = crypto_ahash_crt(tfm); + + return crt->setkey(tfm, key, keylen); +} + +static inline int crypto_ahash_digest(struct ahash_request *req) +{ + struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req)); + return crt->digest(req); +} + +static inline void ahash_request_set_tfm(struct ahash_request *req, + struct crypto_ahash *tfm) +{ + req->base.tfm = crypto_ahash_tfm(tfm); +} + +static inline struct ahash_request *ahash_request_alloc( + struct crypto_ahash *tfm, gfp_t gfp) +{ + struct ahash_request *req; + + req = kmalloc(sizeof(struct ahash_request) + + crypto_ahash_reqsize(tfm), gfp); + + if (likely(req)) + ahash_request_set_tfm(req, tfm); + + return req; +} + +static inline void ahash_request_free(struct ahash_request *req) +{ + kfree(req); +} + +static inline struct ahash_request *ahash_request_cast( + struct crypto_async_request *req) +{ + return container_of(req, struct ahash_request, base); +} + +static inline void ahash_request_set_callback(struct ahash_request *req, + u32 flags, + crypto_completion_t complete, + void *data) +{ + req->base.complete = complete; + req->base.data = data; + req->base.flags = flags; +} + +static inline void ahash_request_set_crypt(struct ahash_request *req, + struct scatterlist *src, u8 *result, + unsigned int nbytes) +{ + req->src = src; + req->nbytes = nbytes; + req->result = result; +} + +#endif /* _CRYPTO_HASH_H */ |