1 /* $OpenBSD: eng_openssl.c,v 1.11 2015/08/28 01:06:09 beck Exp $ */
2 /* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
58 /* ====================================================================
59 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
60 * ECDH support in OpenSSL originally developed by
61 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
67 #include <openssl/opensslconf.h>
69 #include <openssl/crypto.h>
70 #include <openssl/dso.h>
71 #include <openssl/engine.h>
72 #include <openssl/err.h>
73 #include <openssl/evp.h>
74 #include <openssl/pem.h>
75 #include <openssl/rand.h>
78 #include <openssl/dh.h>
80 #ifndef OPENSSL_NO_DSA
81 #include <openssl/dsa.h>
83 #ifndef OPENSSL_NO_RSA
84 #include <openssl/rsa.h>
87 /* This testing gunk is implemented (and explained) lower down. It also assumes
88 * the application explicitly calls "ENGINE_load_openssl()" because this is no
89 * longer automatic in ENGINE_load_builtin_engines(). */
90 #define TEST_ENG_OPENSSL_RC4
91 #define TEST_ENG_OPENSSL_PKEY
92 /* #define TEST_ENG_OPENSSL_RC4_OTHERS */
93 #define TEST_ENG_OPENSSL_RC4_P_INIT
94 /* #define TEST_ENG_OPENSSL_RC4_P_CIPHER */
95 #define TEST_ENG_OPENSSL_SHA
96 /* #define TEST_ENG_OPENSSL_SHA_OTHERS */
97 /* #define TEST_ENG_OPENSSL_SHA_P_INIT */
98 /* #define TEST_ENG_OPENSSL_SHA_P_UPDATE */
99 /* #define TEST_ENG_OPENSSL_SHA_P_FINAL */
101 /* Now check what of those algorithms are actually enabled */
102 #ifdef OPENSSL_NO_RC4
103 #undef TEST_ENG_OPENSSL_RC4
104 #undef TEST_ENG_OPENSSL_RC4_OTHERS
105 #undef TEST_ENG_OPENSSL_RC4_P_INIT
106 #undef TEST_ENG_OPENSSL_RC4_P_CIPHER
108 #if defined(OPENSSL_NO_SHA) || defined(OPENSSL_NO_SHA1)
109 #undef TEST_ENG_OPENSSL_SHA
110 #undef TEST_ENG_OPENSSL_SHA_OTHERS
111 #undef TEST_ENG_OPENSSL_SHA_P_INIT
112 #undef TEST_ENG_OPENSSL_SHA_P_UPDATE
113 #undef TEST_ENG_OPENSSL_SHA_P_FINAL
116 #ifdef TEST_ENG_OPENSSL_RC4
117 static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
118 const int **nids, int nid);
120 #ifdef TEST_ENG_OPENSSL_SHA
121 static int openssl_digests(ENGINE *e, const EVP_MD **digest,
122 const int **nids, int nid);
125 #ifdef TEST_ENG_OPENSSL_PKEY
126 static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id,
127 UI_METHOD *ui_method, void *callback_data);
130 /* The constants used when creating the ENGINE */
131 static const char *engine_openssl_id = "openssl";
132 static const char *engine_openssl_name = "Software engine support";
134 /* This internal function is used by ENGINE_openssl() and possibly by the
135 * "dynamic" ENGINE support too */
137 bind_helper(ENGINE *e)
139 if (!ENGINE_set_id(e, engine_openssl_id) ||
140 !ENGINE_set_name(e, engine_openssl_name)
141 #ifndef TEST_ENG_OPENSSL_NO_ALGORITHMS
142 #ifndef OPENSSL_NO_RSA
143 || !ENGINE_set_RSA(e, RSA_get_default_method())
145 #ifndef OPENSSL_NO_DSA
146 || !ENGINE_set_DSA(e, DSA_get_default_method())
148 #ifndef OPENSSL_NO_ECDH
149 || !ENGINE_set_ECDH(e, ECDH_OpenSSL())
151 #ifndef OPENSSL_NO_ECDSA
152 || !ENGINE_set_ECDSA(e, ECDSA_OpenSSL())
154 #ifndef OPENSSL_NO_DH
155 || !ENGINE_set_DH(e, DH_get_default_method())
157 || !ENGINE_set_RAND(e, RAND_SSLeay())
158 #ifdef TEST_ENG_OPENSSL_RC4
159 || !ENGINE_set_ciphers(e, openssl_ciphers)
161 #ifdef TEST_ENG_OPENSSL_SHA
162 || !ENGINE_set_digests(e, openssl_digests)
165 #ifdef TEST_ENG_OPENSSL_PKEY
166 || !ENGINE_set_load_privkey_function(e, openssl_load_privkey)
170 /* If we add errors to this ENGINE, ensure the error handling is setup here */
171 /* openssl_load_error_strings(); */
178 ENGINE *ret = ENGINE_new();
182 if (!bind_helper(ret)) {
190 ENGINE_load_openssl(void)
192 ENGINE *toadd = engine_openssl();
196 (void) ENGINE_add(toadd);
197 /* If the "add" worked, it gets a structural reference. So either way,
198 * we release our just-created reference. */
203 /* This stuff is needed if this ENGINE is being compiled into a self-contained
205 #ifdef ENGINE_DYNAMIC_SUPPORT
207 bind_fn(ENGINE *e, const char *id)
209 if (id && (strcmp(id, engine_openssl_id) != 0))
215 IMPLEMENT_DYNAMIC_CHECK_FN()
216 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
217 #endif /* ENGINE_DYNAMIC_SUPPORT */
219 #ifdef TEST_ENG_OPENSSL_RC4
220 /* This section of code compiles an "alternative implementation" of two modes of
221 * RC4 into this ENGINE. The result is that EVP_CIPHER operation for "rc4"
222 * should under normal circumstances go via this support rather than the default
223 * EVP support. There are other symbols to tweak the testing;
224 * TEST_ENC_OPENSSL_RC4_OTHERS - print a one line message to stderr each time
225 * we're asked for a cipher we don't support (should not happen).
226 * TEST_ENG_OPENSSL_RC4_P_INIT - print a one line message to stderr each time
227 * the "init_key" handler is called.
228 * TEST_ENG_OPENSSL_RC4_P_CIPHER - ditto for the "cipher" handler.
230 #include <openssl/rc4.h>
231 #define TEST_RC4_KEY_SIZE 16
232 static int test_cipher_nids[] = {NID_rc4, NID_rc4_40};
233 static int test_cipher_nids_number = 2;
236 unsigned char key[TEST_RC4_KEY_SIZE];
240 #define test(ctx) ((TEST_RC4_KEY *)(ctx)->cipher_data)
242 test_rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
243 const unsigned char *iv, int enc)
245 #ifdef TEST_ENG_OPENSSL_RC4_P_INIT
246 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_init_key() called\n");
248 memcpy(&test(ctx)->key[0], key, EVP_CIPHER_CTX_key_length(ctx));
249 RC4_set_key(&test(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx),
255 test_rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
256 const unsigned char *in, size_t inl)
258 #ifdef TEST_ENG_OPENSSL_RC4_P_CIPHER
259 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_cipher() called\n");
261 RC4(&test(ctx)->ks, inl, in, out);
265 static const EVP_CIPHER test_r4_cipher = {
267 1, TEST_RC4_KEY_SIZE, 0,
268 EVP_CIPH_VARIABLE_LENGTH,
272 sizeof(TEST_RC4_KEY),
279 static const EVP_CIPHER test_r4_40_cipher = {
282 EVP_CIPH_VARIABLE_LENGTH,
286 sizeof(TEST_RC4_KEY),
294 openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid)
297 /* We are returning a list of supported nids */
298 *nids = test_cipher_nids;
299 return test_cipher_nids_number;
301 /* We are being asked for a specific cipher */
303 *cipher = &test_r4_cipher;
304 else if (nid == NID_rc4_40)
305 *cipher = &test_r4_40_cipher;
307 #ifdef TEST_ENG_OPENSSL_RC4_OTHERS
308 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) returning NULL for "
318 #ifdef TEST_ENG_OPENSSL_SHA
319 /* Much the same sort of comment as for TEST_ENG_OPENSSL_RC4 */
320 #include <openssl/sha.h>
321 static int test_digest_nids[] = {NID_sha1};
322 static int test_digest_nids_number = 1;
325 test_sha1_init(EVP_MD_CTX *ctx)
327 #ifdef TEST_ENG_OPENSSL_SHA_P_INIT
328 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_init() called\n");
330 return SHA1_Init(ctx->md_data);
334 test_sha1_update(EVP_MD_CTX *ctx, const void *data, size_t count)
336 #ifdef TEST_ENG_OPENSSL_SHA_P_UPDATE
337 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_update() called\n");
339 return SHA1_Update(ctx->md_data, data, count);
343 test_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
345 #ifdef TEST_ENG_OPENSSL_SHA_P_FINAL
346 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_final() called\n");
348 return SHA1_Final(md, ctx->md_data);
351 static const EVP_MD test_sha_md = {
353 NID_sha1WithRSAEncryption,
363 sizeof(EVP_MD *) + sizeof(SHA_CTX),
367 openssl_digests(ENGINE *e, const EVP_MD **digest, const int **nids, int nid)
370 /* We are returning a list of supported nids */
371 *nids = test_digest_nids;
372 return test_digest_nids_number;
374 /* We are being asked for a specific digest */
376 *digest = &test_sha_md;
378 #ifdef TEST_ENG_OPENSSL_SHA_OTHERS
379 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) returning NULL for "
389 #ifdef TEST_ENG_OPENSSL_PKEY
391 openssl_load_privkey(ENGINE *eng, const char *key_id, UI_METHOD *ui_method,
397 fprintf(stderr, "(TEST_ENG_OPENSSL_PKEY)Loading Private key %s\n",
399 in = BIO_new_file(key_id, "r");
402 key = PEM_read_bio_PrivateKey(in, NULL, 0, NULL);