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>
24 #include <crypto/public_key.h>
28 static int crypto_akcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
30 struct crypto_report_akcipher rakcipher;
32 strncpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
34 if (nla_put(skb, CRYPTOCFGA_REPORT_AKCIPHER,
35 sizeof(struct crypto_report_akcipher), &rakcipher))
43 static int crypto_akcipher_report(struct sk_buff *skb, struct crypto_alg *alg)
49 static void crypto_akcipher_show(struct seq_file *m, struct crypto_alg *alg)
50 __attribute__ ((unused));
52 static void crypto_akcipher_show(struct seq_file *m, struct crypto_alg *alg)
54 seq_puts(m, "type : akcipher\n");
57 static void crypto_akcipher_exit_tfm(struct crypto_tfm *tfm)
59 struct crypto_akcipher *akcipher = __crypto_akcipher_tfm(tfm);
60 struct akcipher_alg *alg = crypto_akcipher_alg(akcipher);
65 static int crypto_akcipher_init_tfm(struct crypto_tfm *tfm)
67 struct crypto_akcipher *akcipher = __crypto_akcipher_tfm(tfm);
68 struct akcipher_alg *alg = crypto_akcipher_alg(akcipher);
71 akcipher->base.exit = crypto_akcipher_exit_tfm;
74 return alg->init(akcipher);
79 static const struct crypto_type crypto_akcipher_type = {
80 .extsize = crypto_alg_extsize,
81 .init_tfm = crypto_akcipher_init_tfm,
83 .show = crypto_akcipher_show,
85 .report = crypto_akcipher_report,
86 .maskclear = ~CRYPTO_ALG_TYPE_MASK,
87 .maskset = CRYPTO_ALG_TYPE_MASK,
88 .type = CRYPTO_ALG_TYPE_AKCIPHER,
89 .tfmsize = offsetof(struct crypto_akcipher, base),
92 struct crypto_akcipher *crypto_alloc_akcipher(const char *alg_name, u32 type,
95 return crypto_alloc_tfm(alg_name, &crypto_akcipher_type, type, mask);
97 EXPORT_SYMBOL_GPL(crypto_alloc_akcipher);
99 int crypto_register_akcipher(struct akcipher_alg *alg)
101 struct crypto_alg *base = &alg->base;
103 base->cra_type = &crypto_akcipher_type;
104 base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
105 base->cra_flags |= CRYPTO_ALG_TYPE_AKCIPHER;
106 return crypto_register_alg(base);
108 EXPORT_SYMBOL_GPL(crypto_register_akcipher);
110 void crypto_unregister_akcipher(struct akcipher_alg *alg)
112 crypto_unregister_alg(&alg->base);
114 EXPORT_SYMBOL_GPL(crypto_unregister_akcipher);
116 MODULE_LICENSE("GPL");
117 MODULE_DESCRIPTION("Generic public key cipher type");