[331] | 1 | /*
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| 2 | * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include "dh_locl.h"
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| 11 | #include <string.h>
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| 12 | #include <openssl/err.h>
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| 13 |
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| 14 | DH_METHOD *DH_meth_new(const char *name, int flags)
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| 15 | {
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| 16 | DH_METHOD *dhm = OPENSSL_zalloc(sizeof(*dhm));
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| 17 |
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| 18 | if (dhm != NULL) {
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| 19 | dhm->flags = flags;
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| 20 |
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| 21 | dhm->name = OPENSSL_strdup(name);
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| 22 | if (dhm->name != NULL)
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| 23 | return dhm;
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| 24 |
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| 25 | OPENSSL_free(dhm);
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| 26 | }
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| 27 |
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| 28 | DHerr(DH_F_DH_METH_NEW, ERR_R_MALLOC_FAILURE);
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| 29 | return NULL;
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| 30 | }
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| 31 |
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| 32 | void DH_meth_free(DH_METHOD *dhm)
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| 33 | {
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| 34 | if (dhm != NULL) {
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| 35 | OPENSSL_free(dhm->name);
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| 36 | OPENSSL_free(dhm);
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| 37 | }
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| 38 | }
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| 39 |
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| 40 | DH_METHOD *DH_meth_dup(const DH_METHOD *dhm)
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| 41 | {
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| 42 | DH_METHOD *ret = OPENSSL_malloc(sizeof(*ret));
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| 43 |
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| 44 | if (ret != NULL) {
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| 45 | memcpy(ret, dhm, sizeof(*dhm));
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| 46 |
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| 47 | ret->name = OPENSSL_strdup(dhm->name);
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| 48 | if (ret->name != NULL)
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| 49 | return ret;
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| 50 |
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| 51 | OPENSSL_free(ret);
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| 52 | }
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| 53 |
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| 54 | DHerr(DH_F_DH_METH_DUP, ERR_R_MALLOC_FAILURE);
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| 55 | return NULL;
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| 56 | }
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| 57 |
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| 58 | const char *DH_meth_get0_name(const DH_METHOD *dhm)
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| 59 | {
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| 60 | return dhm->name;
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| 61 | }
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| 62 |
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| 63 | int DH_meth_set1_name(DH_METHOD *dhm, const char *name)
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| 64 | {
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| 65 | char *tmpname = OPENSSL_strdup(name);
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| 66 |
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| 67 | if (tmpname == NULL) {
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| 68 | DHerr(DH_F_DH_METH_SET1_NAME, ERR_R_MALLOC_FAILURE);
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| 69 | return 0;
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| 70 | }
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| 71 |
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| 72 | OPENSSL_free(dhm->name);
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| 73 | dhm->name = tmpname;
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| 74 |
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| 75 | return 1;
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| 76 | }
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| 77 |
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| 78 | int DH_meth_get_flags(DH_METHOD *dhm)
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| 79 | {
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| 80 | return dhm->flags;
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| 81 | }
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| 82 |
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| 83 | int DH_meth_set_flags(DH_METHOD *dhm, int flags)
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| 84 | {
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| 85 | dhm->flags = flags;
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| 86 | return 1;
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| 87 | }
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| 88 |
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| 89 | void *DH_meth_get0_app_data(const DH_METHOD *dhm)
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| 90 | {
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| 91 | return dhm->app_data;
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| 92 | }
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| 93 |
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| 94 | int DH_meth_set0_app_data(DH_METHOD *dhm, void *app_data)
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| 95 | {
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| 96 | dhm->app_data = app_data;
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| 97 | return 1;
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| 98 | }
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| 99 |
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| 100 | int (*DH_meth_get_generate_key(const DH_METHOD *dhm)) (DH *)
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| 101 | {
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| 102 | return dhm->generate_key;
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| 103 | }
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| 104 |
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| 105 | int DH_meth_set_generate_key(DH_METHOD *dhm, int (*generate_key) (DH *))
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| 106 | {
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| 107 | dhm->generate_key = generate_key;
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| 108 | return 1;
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| 109 | }
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| 110 |
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| 111 | int (*DH_meth_get_compute_key(const DH_METHOD *dhm))
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| 112 | (unsigned char *key, const BIGNUM *pub_key, DH *dh)
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| 113 | {
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| 114 | return dhm->compute_key;
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| 115 | }
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| 116 |
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| 117 | int DH_meth_set_compute_key(DH_METHOD *dhm,
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| 118 | int (*compute_key) (unsigned char *key, const BIGNUM *pub_key, DH *dh))
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| 119 | {
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| 120 | dhm->compute_key = compute_key;
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| 121 | return 1;
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| 122 | }
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| 123 |
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| 124 |
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| 125 | int (*DH_meth_get_bn_mod_exp(const DH_METHOD *dhm))
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| 126 | (const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
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| 127 | BN_CTX *, BN_MONT_CTX *)
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| 128 | {
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| 129 | return dhm->bn_mod_exp;
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| 130 | }
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| 131 |
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| 132 | int DH_meth_set_bn_mod_exp(DH_METHOD *dhm,
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| 133 | int (*bn_mod_exp) (const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *,
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| 134 | const BIGNUM *, BN_CTX *, BN_MONT_CTX *))
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| 135 | {
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| 136 | dhm->bn_mod_exp = bn_mod_exp;
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| 137 | return 1;
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| 138 | }
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| 139 |
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| 140 | int (*DH_meth_get_init(const DH_METHOD *dhm))(DH *)
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| 141 | {
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| 142 | return dhm->init;
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| 143 | }
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| 144 |
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| 145 | int DH_meth_set_init(DH_METHOD *dhm, int (*init)(DH *))
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| 146 | {
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| 147 | dhm->init = init;
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| 148 | return 1;
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| 149 | }
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| 150 |
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| 151 | int (*DH_meth_get_finish(const DH_METHOD *dhm)) (DH *)
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| 152 | {
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| 153 | return dhm->finish;
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| 154 | }
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| 155 |
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| 156 | int DH_meth_set_finish(DH_METHOD *dhm, int (*finish) (DH *))
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| 157 | {
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| 158 | dhm->finish = finish;
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| 159 | return 1;
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| 160 | }
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| 161 |
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| 162 | int (*DH_meth_get_generate_params(const DH_METHOD *dhm))
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| 163 | (DH *, int, int, BN_GENCB *)
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| 164 | {
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| 165 | return dhm->generate_params;
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| 166 | }
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| 167 |
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| 168 | int DH_meth_set_generate_params(DH_METHOD *dhm,
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| 169 | int (*generate_params) (DH *, int, int, BN_GENCB *))
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| 170 | {
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| 171 | dhm->generate_params = generate_params;
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| 172 | return 1;
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| 173 | }
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