2 * Public Key Encryption
4 * Copyright (c) 2015, Intel Corporation
5 * Authors: Tadeusz Struk <tadeusz.struk@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 <net/netlink.h>
23 #include <crypto/akcipher.h>
27 static int crypto_akcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
29 struct crypto_report_akcipher rakcipher;
31 strncpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
33 if (nla_put(skb, CRYPTOCFGA_REPORT_AKCIPHER,
34 sizeof(struct crypto_report_akcipher), &rakcipher))
42 static int crypto_akcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
48 static void crypto_akcipher_show(struct seq_file *m, struct crypto_alg *alg)
49 __attribute__ ((unused));
51 static void crypto_akcipher_show(struct seq_file *m, struct crypto_alg *alg)
53 seq_puts(m, "type : akcipher\n");
56 static void crypto_akcipher_exit_tfm(struct crypto_tfm *tfm)
58 struct crypto_akcipher *akcipher = __crypto_akcipher_tfm(tfm);
59 struct akcipher_alg *alg = crypto_akcipher_alg(akcipher);
64 static int crypto_akcipher_init_tfm(struct crypto_tfm *tfm)
66 struct crypto_akcipher *akcipher = __crypto_akcipher_tfm(tfm);
67 struct akcipher_alg *alg = crypto_akcipher_alg(akcipher);
70 akcipher->base.exit = crypto_akcipher_exit_tfm;
73 return alg->init(akcipher);
78 static const struct crypto_type crypto_akcipher_type = {
79 .extsize = crypto_alg_extsize,
80 .init_tfm = crypto_akcipher_init_tfm,
82 .show = crypto_akcipher_show,
84 .report = crypto_akcipher_report,
85 .maskclear = ~CRYPTO_ALG_TYPE_MASK,
86 .maskset = CRYPTO_ALG_TYPE_MASK,
87 .type = CRYPTO_ALG_TYPE_AKCIPHER,
88 .tfmsize = offsetof(struct crypto_akcipher, base),
91 struct crypto_akcipher *crypto_alloc_akcipher(const char *alg_name, u32 type,
94 return crypto_alloc_tfm(alg_name, &crypto_akcipher_type, type, mask);
96 EXPORT_SYMBOL_GPL(crypto_alloc_akcipher);
98 int crypto_register_akcipher(struct akcipher_alg *alg)
100 struct crypto_alg *base = &alg->base;
102 base->cra_type = &crypto_akcipher_type;
103 base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
104 base->cra_flags |= CRYPTO_ALG_TYPE_AKCIPHER;
105 return crypto_register_alg(base);
107 EXPORT_SYMBOL_GPL(crypto_register_akcipher);
109 void crypto_unregister_akcipher(struct akcipher_alg *alg)
111 crypto_unregister_alg(&alg->base);
113 EXPORT_SYMBOL_GPL(crypto_unregister_akcipher);
115 MODULE_LICENSE("GPL");
116 MODULE_DESCRIPTION("Generic public key cipher type");