Herbert Xu | cce9e06 | 2006-08-21 21:08:13 +1000 | [diff] [blame] | 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 | |
Herbert Xu | 4cc7720 | 2006-08-06 21:16:34 +1000 | [diff] [blame] | 17 | struct module; |
Herbert Xu | e853c3c | 2006-08-22 00:06:54 +1000 | [diff] [blame^] | 18 | struct seq_file; |
| 19 | |
| 20 | struct crypto_type { |
| 21 | unsigned int (*ctxsize)(struct crypto_alg *alg); |
| 22 | int (*init)(struct crypto_tfm *tfm); |
| 23 | void (*exit)(struct crypto_tfm *tfm); |
| 24 | void (*show)(struct seq_file *m, struct crypto_alg *alg); |
| 25 | }; |
Herbert Xu | 4cc7720 | 2006-08-06 21:16:34 +1000 | [diff] [blame] | 26 | |
| 27 | struct crypto_instance { |
| 28 | struct crypto_alg alg; |
| 29 | |
| 30 | struct crypto_template *tmpl; |
| 31 | struct hlist_node list; |
| 32 | |
| 33 | void *__ctx[] CRYPTO_MINALIGN_ATTR; |
| 34 | }; |
| 35 | |
| 36 | struct crypto_template { |
| 37 | struct list_head list; |
| 38 | struct hlist_head instances; |
| 39 | struct module *module; |
| 40 | |
| 41 | struct crypto_instance *(*alloc)(void *param, unsigned int len); |
| 42 | void (*free)(struct crypto_instance *inst); |
| 43 | |
| 44 | char name[CRYPTO_MAX_ALG_NAME]; |
| 45 | }; |
| 46 | |
Herbert Xu | 6bfd480 | 2006-09-21 11:39:29 +1000 | [diff] [blame] | 47 | struct crypto_spawn { |
| 48 | struct list_head list; |
| 49 | struct crypto_alg *alg; |
| 50 | struct crypto_instance *inst; |
| 51 | }; |
| 52 | |
Herbert Xu | 4cc7720 | 2006-08-06 21:16:34 +1000 | [diff] [blame] | 53 | int crypto_register_template(struct crypto_template *tmpl); |
| 54 | void crypto_unregister_template(struct crypto_template *tmpl); |
| 55 | struct crypto_template *crypto_lookup_template(const char *name); |
| 56 | |
Herbert Xu | 6bfd480 | 2006-09-21 11:39:29 +1000 | [diff] [blame] | 57 | int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg, |
| 58 | struct crypto_instance *inst); |
| 59 | void crypto_drop_spawn(struct crypto_spawn *spawn); |
| 60 | struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn); |
| 61 | |
Herbert Xu | 7fed0bf | 2006-08-06 23:10:45 +1000 | [diff] [blame] | 62 | struct crypto_alg *crypto_get_attr_alg(void *param, unsigned int len, |
| 63 | u32 type, u32 mask); |
| 64 | struct crypto_instance *crypto_alloc_instance(const char *name, |
| 65 | struct crypto_alg *alg); |
| 66 | |
Herbert Xu | 4cc7720 | 2006-08-06 21:16:34 +1000 | [diff] [blame] | 67 | static inline void *crypto_instance_ctx(struct crypto_instance *inst) |
| 68 | { |
| 69 | return inst->__ctx; |
| 70 | } |
| 71 | |
Herbert Xu | cce9e06 | 2006-08-21 21:08:13 +1000 | [diff] [blame] | 72 | #endif /* _CRYPTO_ALGAPI_H */ |
| 73 | |