xref: /openbmc/linux/include/crypto/internal/kpp.h (revision 791d3ef2)
1 /*
2  * Key-agreement Protocol Primitives (KPP)
3  *
4  * Copyright (c) 2016, Intel Corporation
5  * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License as published by the Free
9  * Software Foundation; either version 2 of the License, or (at your option)
10  * any later version.
11  *
12  */
13 #ifndef _CRYPTO_KPP_INT_H
14 #define _CRYPTO_KPP_INT_H
15 #include <crypto/kpp.h>
16 #include <crypto/algapi.h>
17 
18 /*
19  * Transform internal helpers.
20  */
21 static inline void *kpp_request_ctx(struct kpp_request *req)
22 {
23 	return req->__ctx;
24 }
25 
26 static inline void *kpp_tfm_ctx(struct crypto_kpp *tfm)
27 {
28 	return tfm->base.__crt_ctx;
29 }
30 
31 static inline void kpp_request_complete(struct kpp_request *req, int err)
32 {
33 	req->base.complete(&req->base, err);
34 }
35 
36 static inline const char *kpp_alg_name(struct crypto_kpp *tfm)
37 {
38 	return crypto_kpp_tfm(tfm)->__crt_alg->cra_name;
39 }
40 
41 /**
42  * crypto_register_kpp() -- Register key-agreement protocol primitives algorithm
43  *
44  * Function registers an implementation of a key-agreement protocol primitive
45  * algorithm
46  *
47  * @alg:	algorithm definition
48  *
49  * Return: zero on success; error code in case of error
50  */
51 int crypto_register_kpp(struct kpp_alg *alg);
52 
53 /**
54  * crypto_unregister_kpp() -- Unregister key-agreement protocol primitive
55  * algorithm
56  *
57  * Function unregisters an implementation of a key-agreement protocol primitive
58  * algorithm
59  *
60  * @alg:	algorithm definition
61  */
62 void crypto_unregister_kpp(struct kpp_alg *alg);
63 
64 #endif
65