1 | /* |
2 | * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | #include "dh_local.h" |
11 | #include <string.h> |
12 | #include <openssl/err.h> |
13 | |
14 | DH_METHOD *DH_meth_new(const char *name, int flags) |
15 | { |
16 | DH_METHOD *dhm = OPENSSL_zalloc(sizeof(*dhm)); |
17 | |
18 | if (dhm != NULL) { |
19 | dhm->flags = flags; |
20 | |
21 | dhm->name = OPENSSL_strdup(name); |
22 | if (dhm->name != NULL) |
23 | return dhm; |
24 | |
25 | OPENSSL_free(dhm); |
26 | } |
27 | |
28 | DHerr(DH_F_DH_METH_NEW, ERR_R_MALLOC_FAILURE); |
29 | return NULL; |
30 | } |
31 | |
32 | void DH_meth_free(DH_METHOD *dhm) |
33 | { |
34 | if (dhm != NULL) { |
35 | OPENSSL_free(dhm->name); |
36 | OPENSSL_free(dhm); |
37 | } |
38 | } |
39 | |
40 | DH_METHOD *DH_meth_dup(const DH_METHOD *dhm) |
41 | { |
42 | DH_METHOD *ret = OPENSSL_malloc(sizeof(*ret)); |
43 | |
44 | if (ret != NULL) { |
45 | memcpy(ret, dhm, sizeof(*dhm)); |
46 | |
47 | ret->name = OPENSSL_strdup(dhm->name); |
48 | if (ret->name != NULL) |
49 | return ret; |
50 | |
51 | OPENSSL_free(ret); |
52 | } |
53 | |
54 | DHerr(DH_F_DH_METH_DUP, ERR_R_MALLOC_FAILURE); |
55 | return NULL; |
56 | } |
57 | |
58 | const char *DH_meth_get0_name(const DH_METHOD *dhm) |
59 | { |
60 | return dhm->name; |
61 | } |
62 | |
63 | int DH_meth_set1_name(DH_METHOD *dhm, const char *name) |
64 | { |
65 | char *tmpname = OPENSSL_strdup(name); |
66 | |
67 | if (tmpname == NULL) { |
68 | DHerr(DH_F_DH_METH_SET1_NAME, ERR_R_MALLOC_FAILURE); |
69 | return 0; |
70 | } |
71 | |
72 | OPENSSL_free(dhm->name); |
73 | dhm->name = tmpname; |
74 | |
75 | return 1; |
76 | } |
77 | |
78 | int DH_meth_get_flags(const DH_METHOD *dhm) |
79 | { |
80 | return dhm->flags; |
81 | } |
82 | |
83 | int DH_meth_set_flags(DH_METHOD *dhm, int flags) |
84 | { |
85 | dhm->flags = flags; |
86 | return 1; |
87 | } |
88 | |
89 | void *DH_meth_get0_app_data(const DH_METHOD *dhm) |
90 | { |
91 | return dhm->app_data; |
92 | } |
93 | |
94 | int DH_meth_set0_app_data(DH_METHOD *dhm, void *app_data) |
95 | { |
96 | dhm->app_data = app_data; |
97 | return 1; |
98 | } |
99 | |
100 | int (*DH_meth_get_generate_key(const DH_METHOD *dhm)) (DH *) |
101 | { |
102 | return dhm->generate_key; |
103 | } |
104 | |
105 | int DH_meth_set_generate_key(DH_METHOD *dhm, int (*generate_key) (DH *)) |
106 | { |
107 | dhm->generate_key = generate_key; |
108 | return 1; |
109 | } |
110 | |
111 | int (*DH_meth_get_compute_key(const DH_METHOD *dhm)) |
112 | (unsigned char *key, const BIGNUM *pub_key, DH *dh) |
113 | { |
114 | return dhm->compute_key; |
115 | } |
116 | |
117 | int DH_meth_set_compute_key(DH_METHOD *dhm, |
118 | int (*compute_key) (unsigned char *key, const BIGNUM *pub_key, DH *dh)) |
119 | { |
120 | dhm->compute_key = compute_key; |
121 | return 1; |
122 | } |
123 | |
124 | |
125 | int (*DH_meth_get_bn_mod_exp(const DH_METHOD *dhm)) |
126 | (const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *, |
127 | BN_CTX *, BN_MONT_CTX *) |
128 | { |
129 | return dhm->bn_mod_exp; |
130 | } |
131 | |
132 | int DH_meth_set_bn_mod_exp(DH_METHOD *dhm, |
133 | int (*bn_mod_exp) (const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *, |
134 | const BIGNUM *, BN_CTX *, BN_MONT_CTX *)) |
135 | { |
136 | dhm->bn_mod_exp = bn_mod_exp; |
137 | return 1; |
138 | } |
139 | |
140 | int (*DH_meth_get_init(const DH_METHOD *dhm))(DH *) |
141 | { |
142 | return dhm->init; |
143 | } |
144 | |
145 | int DH_meth_set_init(DH_METHOD *dhm, int (*init)(DH *)) |
146 | { |
147 | dhm->init = init; |
148 | return 1; |
149 | } |
150 | |
151 | int (*DH_meth_get_finish(const DH_METHOD *dhm)) (DH *) |
152 | { |
153 | return dhm->finish; |
154 | } |
155 | |
156 | int DH_meth_set_finish(DH_METHOD *dhm, int (*finish) (DH *)) |
157 | { |
158 | dhm->finish = finish; |
159 | return 1; |
160 | } |
161 | |
162 | int (*DH_meth_get_generate_params(const DH_METHOD *dhm)) |
163 | (DH *, int, int, BN_GENCB *) |
164 | { |
165 | return dhm->generate_params; |
166 | } |
167 | |
168 | int DH_meth_set_generate_params(DH_METHOD *dhm, |
169 | int (*generate_params) (DH *, int, int, BN_GENCB *)) |
170 | { |
171 | dhm->generate_params = generate_params; |
172 | return 1; |
173 | } |
174 | |