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https://github.com/fail0verflow/switch-linux.git
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f28776a369
This patch adds two new operations for the simple cipher that encrypts or decrypts a single block at a time. This will be the main interface after the existing block operations have moved over to the new block ciphers. It also adds the crypto_cipher type which is currently only used on the new operations but will be extended to setkey as well once existing users have been converted to use block ciphers where applicable. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/*
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* Cryptographic API for algorithms (i.e., low-level API).
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*
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* Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
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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_ALGAPI_H
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#define _CRYPTO_ALGAPI_H
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#include <linux/crypto.h>
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struct module;
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struct seq_file;
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struct crypto_type {
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unsigned int (*ctxsize)(struct crypto_alg *alg);
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int (*init)(struct crypto_tfm *tfm);
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void (*exit)(struct crypto_tfm *tfm);
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void (*show)(struct seq_file *m, struct crypto_alg *alg);
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};
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struct crypto_instance {
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struct crypto_alg alg;
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struct crypto_template *tmpl;
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struct hlist_node list;
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void *__ctx[] CRYPTO_MINALIGN_ATTR;
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};
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struct crypto_template {
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struct list_head list;
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struct hlist_head instances;
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struct module *module;
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struct crypto_instance *(*alloc)(void *param, unsigned int len);
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void (*free)(struct crypto_instance *inst);
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char name[CRYPTO_MAX_ALG_NAME];
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};
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struct crypto_spawn {
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struct list_head list;
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struct crypto_alg *alg;
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struct crypto_instance *inst;
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};
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int crypto_register_template(struct crypto_template *tmpl);
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void crypto_unregister_template(struct crypto_template *tmpl);
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struct crypto_template *crypto_lookup_template(const char *name);
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int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
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struct crypto_instance *inst);
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void crypto_drop_spawn(struct crypto_spawn *spawn);
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struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn);
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struct crypto_alg *crypto_get_attr_alg(void *param, unsigned int len,
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u32 type, u32 mask);
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struct crypto_instance *crypto_alloc_instance(const char *name,
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struct crypto_alg *alg);
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static inline void *crypto_instance_ctx(struct crypto_instance *inst)
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{
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return inst->__ctx;
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}
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static inline struct cipher_alg *crypto_cipher_alg(struct crypto_cipher *tfm)
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{
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return &crypto_cipher_tfm(tfm)->__crt_alg->cra_cipher;
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}
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#endif /* _CRYPTO_ALGAPI_H */
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