2 * AEAD: Authenticated Encryption with Associated Data
4 * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
13 #ifndef _CRYPTO_INTERNAL_AEAD_H
14 #define _CRYPTO_INTERNAL_AEAD_H
16 #include <crypto/aead.h>
17 #include <crypto/algapi.h>
18 #include <linux/types.h>
22 struct aead_instance {
26 struct crypto_aead_spawn {
27 struct crypto_spawn base;
30 extern const struct crypto_type crypto_aead_type;
31 extern const struct crypto_type crypto_nivaead_type;
33 static inline void *crypto_aead_ctx(struct crypto_aead *tfm)
35 return crypto_tfm_ctx(&tfm->base);
38 static inline struct crypto_instance *crypto_aead_alg_instance(
39 struct crypto_aead *aead)
41 return crypto_tfm_alg_instance(&aead->base);
44 static inline struct crypto_instance *aead_crypto_instance(
45 struct aead_instance *inst)
47 return container_of(&inst->alg.base, struct crypto_instance, alg);
50 static inline struct aead_instance *aead_instance(struct crypto_instance *inst)
52 return container_of(&inst->alg, struct aead_instance, alg.base);
55 static inline struct aead_instance *aead_alg_instance(struct crypto_aead *aead)
57 return aead_instance(crypto_aead_alg_instance(aead));
60 static inline void *aead_instance_ctx(struct aead_instance *inst)
62 return crypto_instance_ctx(aead_crypto_instance(inst));
65 static inline void *aead_request_ctx(struct aead_request *req)
70 static inline void aead_request_complete(struct aead_request *req, int err)
72 req->base.complete(&req->base, err);
75 static inline u32 aead_request_flags(struct aead_request *req)
77 return req->base.flags;
80 static inline void crypto_set_aead_spawn(
81 struct crypto_aead_spawn *spawn, struct crypto_instance *inst)
83 crypto_set_spawn(&spawn->base, inst);
86 struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask);
88 int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name,
91 static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
93 crypto_drop_spawn(&spawn->base);
96 static inline struct crypto_alg *crypto_aead_spawn_alg(
97 struct crypto_aead_spawn *spawn)
99 return spawn->base.alg;
102 static inline struct aead_alg *crypto_spawn_aead_alg(
103 struct crypto_aead_spawn *spawn)
105 return container_of(spawn->base.alg, struct aead_alg, base);
108 static inline struct crypto_aead *crypto_spawn_aead(
109 struct crypto_aead_spawn *spawn)
111 return crypto_spawn_tfm2(&spawn->base);
114 struct aead_instance *aead_geniv_alloc(struct crypto_template *tmpl,
115 struct rtattr **tb, u32 type, u32 mask);
116 void aead_geniv_free(struct aead_instance *inst);
117 int aead_geniv_init(struct crypto_tfm *tfm);
118 void aead_geniv_exit(struct crypto_tfm *tfm);
120 static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv)
125 static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req)
127 return aead_request_ctx(&req->areq);
130 static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,
133 aead_request_complete(&req->areq, err);
136 static inline void crypto_aead_set_reqsize(struct crypto_aead *aead,
137 unsigned int reqsize)
139 crypto_aead_crt(aead)->reqsize = reqsize;
142 static inline unsigned int crypto_aead_alg_maxauthsize(struct aead_alg *alg)
144 return alg->base.cra_aead.encrypt ? alg->base.cra_aead.maxauthsize :
148 static inline unsigned int crypto_aead_maxauthsize(struct crypto_aead *aead)
150 return crypto_aead_alg_maxauthsize(crypto_aead_alg(aead));
153 int crypto_register_aead(struct aead_alg *alg);
154 void crypto_unregister_aead(struct aead_alg *alg);
155 int aead_register_instance(struct crypto_template *tmpl,
156 struct aead_instance *inst);
158 #endif /* _CRYPTO_INTERNAL_AEAD_H */