2 * Key-agreement Protocol Primitives (KPP)
4 * Copyright (c) 2016, Intel Corporation
5 * Authors: Salvatore Benedetto <salvatore.benedetto@intel.com>
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)
13 #include <linux/errno.h>
14 #include <linux/kernel.h>
15 #include <linux/module.h>
16 #include <linux/seq_file.h>
17 #include <linux/slab.h>
18 #include <linux/string.h>
19 #include <linux/crypto.h>
20 #include <crypto/algapi.h>
21 #include <linux/cryptouser.h>
22 #include <linux/compiler.h>
23 #include <net/netlink.h>
24 #include <crypto/kpp.h>
25 #include <crypto/internal/kpp.h>
29 static int crypto_kpp_report(struct sk_buff *skb, struct crypto_alg *alg)
31 struct crypto_report_kpp rkpp;
33 strncpy(rkpp.type, "kpp", sizeof(rkpp.type));
35 if (nla_put(skb, CRYPTOCFGA_REPORT_KPP,
36 sizeof(struct crypto_report_kpp), &rkpp))
44 static int crypto_kpp_report(struct sk_buff *skb, struct crypto_alg *alg)
50 static void crypto_kpp_show(struct seq_file *m, struct crypto_alg *alg)
53 static void crypto_kpp_show(struct seq_file *m, struct crypto_alg *alg)
55 seq_puts(m, "type : kpp\n");
58 static void crypto_kpp_exit_tfm(struct crypto_tfm *tfm)
60 struct crypto_kpp *kpp = __crypto_kpp_tfm(tfm);
61 struct kpp_alg *alg = crypto_kpp_alg(kpp);
66 static int crypto_kpp_init_tfm(struct crypto_tfm *tfm)
68 struct crypto_kpp *kpp = __crypto_kpp_tfm(tfm);
69 struct kpp_alg *alg = crypto_kpp_alg(kpp);
72 kpp->base.exit = crypto_kpp_exit_tfm;
75 return alg->init(kpp);
80 static const struct crypto_type crypto_kpp_type = {
81 .extsize = crypto_alg_extsize,
82 .init_tfm = crypto_kpp_init_tfm,
84 .show = crypto_kpp_show,
86 .report = crypto_kpp_report,
87 .maskclear = ~CRYPTO_ALG_TYPE_MASK,
88 .maskset = CRYPTO_ALG_TYPE_MASK,
89 .type = CRYPTO_ALG_TYPE_KPP,
90 .tfmsize = offsetof(struct crypto_kpp, base),
93 struct crypto_kpp *crypto_alloc_kpp(const char *alg_name, u32 type, u32 mask)
95 return crypto_alloc_tfm(alg_name, &crypto_kpp_type, type, mask);
97 EXPORT_SYMBOL_GPL(crypto_alloc_kpp);
99 static void kpp_prepare_alg(struct kpp_alg *alg)
101 struct crypto_alg *base = &alg->base;
103 base->cra_type = &crypto_kpp_type;
104 base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
105 base->cra_flags |= CRYPTO_ALG_TYPE_KPP;
108 int crypto_register_kpp(struct kpp_alg *alg)
110 struct crypto_alg *base = &alg->base;
112 kpp_prepare_alg(alg);
113 return crypto_register_alg(base);
115 EXPORT_SYMBOL_GPL(crypto_register_kpp);
117 void crypto_unregister_kpp(struct kpp_alg *alg)
119 crypto_unregister_alg(&alg->base);
121 EXPORT_SYMBOL_GPL(crypto_unregister_kpp);
123 MODULE_LICENSE("GPL");
124 MODULE_DESCRIPTION("Key-agreement Protocol Primitives");