Root/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
20struct rtattr;
21
22struct crypto_aead_spawn {
23    struct crypto_spawn base;
24};
25
26extern const struct crypto_type crypto_nivaead_type;
27
28static 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
34struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask);
35
36int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name,
37             u32 type, u32 mask);
38
39static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
40{
41    crypto_drop_spawn(&spawn->base);
42}
43
44static inline struct crypto_alg *crypto_aead_spawn_alg(
45    struct crypto_aead_spawn *spawn)
46{
47    return spawn->base.alg;
48}
49
50static inline struct crypto_aead *crypto_spawn_aead(
51    struct crypto_aead_spawn *spawn)
52{
53    return __crypto_aead_cast(
54        crypto_spawn_tfm(&spawn->base, CRYPTO_ALG_TYPE_AEAD,
55                 CRYPTO_ALG_TYPE_MASK));
56}
57
58struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl,
59                     struct rtattr **tb, u32 type,
60                     u32 mask);
61void aead_geniv_free(struct crypto_instance *inst);
62int aead_geniv_init(struct crypto_tfm *tfm);
63void aead_geniv_exit(struct crypto_tfm *tfm);
64
65static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv)
66{
67    return crypto_aead_crt(geniv)->base;
68}
69
70static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req)
71{
72    return aead_request_ctx(&req->areq);
73}
74
75static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,
76                      int err)
77{
78    aead_request_complete(&req->areq, err);
79}
80
81#endif /* _CRYPTO_INTERNAL_AEAD_H */
82
83

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