[CRYPTO] seqiv: Add AEAD support
[linux-2.6.git] / include / crypto / internal / aead.h
1 /*
2  * AEAD: Authenticated Encryption with Associated Data
3  * 
4  * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
5  *
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) 
9  * any later version.
10  *
11  */
12
13 #ifndef _CRYPTO_INTERNAL_AEAD_H
14 #define _CRYPTO_INTERNAL_AEAD_H
15
16 #include <crypto/aead.h>
17 #include <crypto/algapi.h>
18 #include <linux/types.h>
19
20 struct rtattr;
21
22 struct crypto_aead_spawn {
23         struct crypto_spawn base;
24 };
25
26 extern const struct crypto_type crypto_nivaead_type;
27
28 static inline void crypto_set_aead_spawn(
29         struct crypto_aead_spawn *spawn, struct crypto_instance *inst)
30 {
31         crypto_set_spawn(&spawn->base, inst);
32 }
33
34 static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
35 {
36         crypto_drop_spawn(&spawn->base);
37 }
38
39 static inline struct crypto_alg *crypto_aead_spawn_alg(
40         struct crypto_aead_spawn *spawn)
41 {
42         return spawn->base.alg;
43 }
44
45 static inline struct crypto_aead *crypto_spawn_aead(
46         struct crypto_aead_spawn *spawn)
47 {
48         return __crypto_aead_cast(
49                 crypto_spawn_tfm(&spawn->base, CRYPTO_ALG_TYPE_AEAD,
50                                  CRYPTO_ALG_TYPE_MASK));
51 }
52
53 struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl,
54                                          struct rtattr **tb, u32 type,
55                                          u32 mask);
56 void aead_geniv_free(struct crypto_instance *inst);
57 int aead_geniv_init(struct crypto_tfm *tfm);
58 void aead_geniv_exit(struct crypto_tfm *tfm);
59
60 static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv)
61 {
62         return crypto_aead_crt(geniv)->base;
63 }
64
65 static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req)
66 {
67         return aead_request_ctx(&req->areq);
68 }
69
70 static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,
71                                           int err)
72 {
73         aead_request_complete(&req->areq, err);
74 }
75
76 #endif  /* _CRYPTO_INTERNAL_AEAD_H */
77