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cce9e06d HX |
1 | /* |
2 | * Cryptographic API for algorithms (i.e., low-level API). | |
3 | * | |
4 | * Copyright (c) 2006 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 | #ifndef _CRYPTO_ALGAPI_H | |
13 | #define _CRYPTO_ALGAPI_H | |
14 | ||
15 | #include <linux/crypto.h> | |
16 | ||
4cc7720c HX |
17 | struct module; |
18 | ||
19 | struct crypto_instance { | |
20 | struct crypto_alg alg; | |
21 | ||
22 | struct crypto_template *tmpl; | |
23 | struct hlist_node list; | |
24 | ||
25 | void *__ctx[] CRYPTO_MINALIGN_ATTR; | |
26 | }; | |
27 | ||
28 | struct crypto_template { | |
29 | struct list_head list; | |
30 | struct hlist_head instances; | |
31 | struct module *module; | |
32 | ||
33 | struct crypto_instance *(*alloc)(void *param, unsigned int len); | |
34 | void (*free)(struct crypto_instance *inst); | |
35 | ||
36 | char name[CRYPTO_MAX_ALG_NAME]; | |
37 | }; | |
38 | ||
6bfd4809 HX |
39 | struct crypto_spawn { |
40 | struct list_head list; | |
41 | struct crypto_alg *alg; | |
42 | struct crypto_instance *inst; | |
43 | }; | |
44 | ||
4cc7720c HX |
45 | int crypto_register_template(struct crypto_template *tmpl); |
46 | void crypto_unregister_template(struct crypto_template *tmpl); | |
47 | struct crypto_template *crypto_lookup_template(const char *name); | |
48 | ||
6bfd4809 HX |
49 | int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg, |
50 | struct crypto_instance *inst); | |
51 | void crypto_drop_spawn(struct crypto_spawn *spawn); | |
52 | struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn); | |
53 | ||
4cc7720c HX |
54 | static inline void *crypto_instance_ctx(struct crypto_instance *inst) |
55 | { | |
56 | return inst->__ctx; | |
57 | } | |
58 | ||
cce9e06d HX |
59 | #endif /* _CRYPTO_ALGAPI_H */ |
60 |