1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
/*
* Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
/*
* Here is a set of wrappers for the ENGINE API, which are no-ops when the
* ENGINE API is disabled / removed.
* We need to suppress deprecation warnings to make this work.
*/
#define OPENSSL_SUPPRESS_DEPRECATED
#include <string.h> /* strcmp */
#include <openssl/types.h> /* Ensure we have the ENGINE type, regardless */
#include <openssl/err.h>
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
#endif
#include "apps.h"
#ifndef OPENSSL_NO_ENGINE
/* Try to load an engine in a shareable library */
static ENGINE *try_load_engine(const char *engine)
{
ENGINE *e = NULL;
if ((e = ENGINE_by_id("dynamic")) != NULL) {
if (!ENGINE_ctrl_cmd_string(e, "SO_PATH", engine, 0)
|| !ENGINE_ctrl_cmd_string(e, "LOAD", NULL, 0)) {
ENGINE_free(e);
e = NULL;
}
}
return e;
}
#endif
ENGINE *setup_engine_methods(const char *id, unsigned int methods, int debug)
{
ENGINE *e = NULL;
#ifndef OPENSSL_NO_ENGINE
if (id != NULL) {
if (strcmp(id, "auto") == 0) {
BIO_printf(bio_err, "Enabling auto ENGINE support\n");
ENGINE_register_all_complete();
return NULL;
}
if ((e = ENGINE_by_id(id)) == NULL
&& (e = try_load_engine(id)) == NULL) {
BIO_printf(bio_err, "Invalid engine \"%s\"\n", id);
ERR_print_errors(bio_err);
return NULL;
}
if (debug)
(void)ENGINE_ctrl(e, ENGINE_CTRL_SET_LOGSTREAM, 0, bio_err, 0);
if (!ENGINE_ctrl_cmd(e, "SET_USER_INTERFACE", 0,
(void *)get_ui_method(), 0, 1)
|| !ENGINE_set_default(e, methods)) {
BIO_printf(bio_err, "Cannot use engine \"%s\"\n", ENGINE_get_id(e));
ERR_print_errors(bio_err);
ENGINE_free(e);
return NULL;
}
BIO_printf(bio_err, "Engine \"%s\" set.\n", ENGINE_get_id(e));
}
#endif
return e;
}
void release_engine(ENGINE *e)
{
#ifndef OPENSSL_NO_ENGINE
/* Free our "structural" reference. */
ENGINE_free(e);
#endif
}
int init_engine(ENGINE *e)
{
int rv = 1;
#ifndef OPENSSL_NO_ENGINE
rv = ENGINE_init(e);
#endif
return rv;
}
int finish_engine(ENGINE *e)
{
int rv = 1;
#ifndef OPENSSL_NO_ENGINE
rv = ENGINE_finish(e);
#endif
return rv;
}
char *make_engine_uri(ENGINE *e, const char *key_id, const char *desc)
{
char *new_uri = NULL;
#ifndef OPENSSL_NO_ENGINE
if (e == NULL) {
BIO_printf(bio_err, "No engine specified for loading %s\n", desc);
} else if (key_id == NULL) {
BIO_printf(bio_err, "No engine key id specified for loading %s\n", desc);
} else {
const char *engineid = ENGINE_get_id(e);
size_t uri_sz =
sizeof(ENGINE_SCHEME_COLON) - 1
+ strlen(engineid)
+ 1 /* : */
+ strlen(key_id)
+ 1 /* \0 */
;
new_uri = OPENSSL_malloc(uri_sz);
if (new_uri != NULL) {
OPENSSL_strlcpy(new_uri, ENGINE_SCHEME_COLON, uri_sz);
OPENSSL_strlcat(new_uri, engineid, uri_sz);
OPENSSL_strlcat(new_uri, ":", uri_sz);
OPENSSL_strlcat(new_uri, key_id, uri_sz);
}
}
#else
BIO_printf(bio_err, "Engines not supported for loading %s\n", desc);
#endif
return new_uri;
}
int get_legacy_pkey_id(OSSL_LIB_CTX *libctx, const char *algname, ENGINE *e)
{
const EVP_PKEY_ASN1_METHOD *ameth;
ENGINE *tmpeng = NULL;
int pkey_id = NID_undef;
ERR_set_mark();
ameth = EVP_PKEY_asn1_find_str(&tmpeng, algname, -1);
#if !defined(OPENSSL_NO_ENGINE)
ENGINE_finish(tmpeng);
if (ameth == NULL && e != NULL)
ameth = ENGINE_get_pkey_asn1_meth_str(e, algname, -1);
else
#endif
/* We're only interested if it comes from an ENGINE */
if (tmpeng == NULL)
ameth = NULL;
ERR_pop_to_mark();
if (ameth == NULL)
return NID_undef;
EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
return pkey_id;
}
const EVP_MD *get_digest_from_engine(const char *name)
{
#ifndef OPENSSL_NO_ENGINE
ENGINE *eng;
eng = ENGINE_get_digest_engine(OBJ_sn2nid(name));
if (eng != NULL) {
ENGINE_finish(eng);
return EVP_get_digestbyname(name);
}
#endif
return NULL;
}
const EVP_CIPHER *get_cipher_from_engine(const char *name)
{
#ifndef OPENSSL_NO_ENGINE
ENGINE *eng;
eng = ENGINE_get_cipher_engine(OBJ_sn2nid(name));
if (eng != NULL) {
ENGINE_finish(eng);
return EVP_get_cipherbyname(name);
}
#endif
return NULL;
}
|
