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174 lines
4.4 KiB
174 lines
4.4 KiB
/* |
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* Symmetric key ciphers. |
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* |
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* Copyright (c) 2007 Herbert Xu <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the Free |
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* Software Foundation; either version 2 of the License, or (at your option) |
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* any later version. |
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* |
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*/ |
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#ifndef _CRYPTO_INTERNAL_SKCIPHER_H |
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#define _CRYPTO_INTERNAL_SKCIPHER_H |
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#include <crypto/algapi.h> |
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#include <crypto/skcipher.h> |
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#include <linux/types.h> |
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struct rtattr; |
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struct skcipher_instance { |
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void (*free)(struct skcipher_instance *inst); |
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union { |
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struct { |
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char head[offsetof(struct skcipher_alg, base)]; |
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struct crypto_instance base; |
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} s; |
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struct skcipher_alg alg; |
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}; |
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}; |
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struct crypto_skcipher_spawn { |
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struct crypto_spawn base; |
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}; |
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extern const struct crypto_type crypto_givcipher_type; |
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static inline struct crypto_instance *skcipher_crypto_instance( |
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struct skcipher_instance *inst) |
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{ |
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return &inst->s.base; |
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} |
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static inline struct skcipher_instance *skcipher_alg_instance( |
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struct crypto_skcipher *skcipher) |
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{ |
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return container_of(crypto_skcipher_alg(skcipher), |
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struct skcipher_instance, alg); |
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} |
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static inline void *skcipher_instance_ctx(struct skcipher_instance *inst) |
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{ |
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return crypto_instance_ctx(skcipher_crypto_instance(inst)); |
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} |
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static inline void skcipher_request_complete(struct skcipher_request *req, int err) |
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{ |
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req->base.complete(&req->base, err); |
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} |
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static inline void crypto_set_skcipher_spawn( |
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struct crypto_skcipher_spawn *spawn, struct crypto_instance *inst) |
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{ |
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crypto_set_spawn(&spawn->base, inst); |
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} |
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int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name, |
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u32 type, u32 mask); |
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static inline int crypto_grab_skcipher2(struct crypto_skcipher_spawn *spawn, |
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const char *name, u32 type, u32 mask) |
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{ |
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return crypto_grab_skcipher(spawn, name, type, mask); |
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} |
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struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask); |
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static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn) |
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{ |
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crypto_drop_spawn(&spawn->base); |
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} |
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static inline struct skcipher_alg *crypto_skcipher_spawn_alg( |
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struct crypto_skcipher_spawn *spawn) |
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{ |
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return container_of(spawn->base.alg, struct skcipher_alg, base); |
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} |
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static inline struct skcipher_alg *crypto_spawn_skcipher_alg( |
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struct crypto_skcipher_spawn *spawn) |
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{ |
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return crypto_skcipher_spawn_alg(spawn); |
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} |
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static inline struct crypto_skcipher *crypto_spawn_skcipher( |
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struct crypto_skcipher_spawn *spawn) |
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{ |
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return crypto_spawn_tfm2(&spawn->base); |
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} |
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static inline struct crypto_skcipher *crypto_spawn_skcipher2( |
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struct crypto_skcipher_spawn *spawn) |
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{ |
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return crypto_spawn_skcipher(spawn); |
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} |
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static inline void crypto_skcipher_set_reqsize( |
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struct crypto_skcipher *skcipher, unsigned int reqsize) |
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{ |
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skcipher->reqsize = reqsize; |
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} |
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int crypto_register_skcipher(struct skcipher_alg *alg); |
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void crypto_unregister_skcipher(struct skcipher_alg *alg); |
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int crypto_register_skciphers(struct skcipher_alg *algs, int count); |
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void crypto_unregister_skciphers(struct skcipher_alg *algs, int count); |
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int skcipher_register_instance(struct crypto_template *tmpl, |
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struct skcipher_instance *inst); |
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static inline void ablkcipher_request_complete(struct ablkcipher_request *req, |
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int err) |
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{ |
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req->base.complete(&req->base, err); |
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} |
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static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req) |
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{ |
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return req->base.flags; |
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} |
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static inline void *crypto_skcipher_ctx(struct crypto_skcipher *tfm) |
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{ |
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return crypto_tfm_ctx(&tfm->base); |
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} |
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static inline void *skcipher_request_ctx(struct skcipher_request *req) |
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{ |
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return req->__ctx; |
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} |
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static inline u32 skcipher_request_flags(struct skcipher_request *req) |
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{ |
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return req->base.flags; |
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} |
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static inline unsigned int crypto_skcipher_alg_min_keysize( |
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struct skcipher_alg *alg) |
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{ |
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if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) == |
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CRYPTO_ALG_TYPE_BLKCIPHER) |
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return alg->base.cra_blkcipher.min_keysize; |
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if (alg->base.cra_ablkcipher.encrypt) |
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return alg->base.cra_ablkcipher.min_keysize; |
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return alg->min_keysize; |
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} |
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static inline unsigned int crypto_skcipher_alg_max_keysize( |
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struct skcipher_alg *alg) |
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{ |
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if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) == |
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CRYPTO_ALG_TYPE_BLKCIPHER) |
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return alg->base.cra_blkcipher.max_keysize; |
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if (alg->base.cra_ablkcipher.encrypt) |
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return alg->base.cra_ablkcipher.max_keysize; |
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return alg->max_keysize; |
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} |
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#endif /* _CRYPTO_INTERNAL_SKCIPHER_H */ |
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