1 /* crypto/engine/eng_openssl.c */
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).
61 #include <openssl/crypto.h>
63 #include <openssl/engine.h>
64 #include <openssl/dso.h>
66 /* This testing gunk is implemented (and explained) lower down. It also assumes
67 * the application explicitly calls "ENGINE_load_openssl()" because this is no
68 * longer automatic in ENGINE_load_builtin_engines(). */
69 #define TEST_ENG_OPENSSL_RC4
70 /* #define TEST_ENG_OPENSSL_RC4_OTHERS */
71 #define TEST_ENG_OPENSSL_RC4_P_INIT
72 /* #define TEST_ENG_OPENSSL_RC4_P_CIPHER */
73 #define TEST_ENG_OPENSSL_SHA
74 /* #define TEST_ENG_OPENSSL_SHA_OTHERS */
75 /* #define TEST_ENG_OPENSSL_SHA_P_INIT */
76 /* #define TEST_ENG_OPENSSL_SHA_P_UPDATE */
77 /* #define TEST_ENG_OPENSSL_SHA_P_FINAL */
79 #ifdef TEST_ENG_OPENSSL_RC4
80 static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
81 const int **nids, int nid);
83 #ifdef TEST_ENG_OPENSSL_SHA
84 static int openssl_digests(ENGINE *e, const EVP_MD **digest,
85 const int **nids, int nid);
88 /* The constants used when creating the ENGINE */
89 static const char *engine_openssl_id = "openssl";
90 static const char *engine_openssl_name = "Software engine support";
92 /* This internal function is used by ENGINE_openssl() and possibly by the
93 * "dynamic" ENGINE support too */
94 static int bind_helper(ENGINE *e)
96 if(!ENGINE_set_id(e, engine_openssl_id)
97 || !ENGINE_set_name(e, engine_openssl_name)
98 #ifndef OPENSSL_NO_RSA
99 || !ENGINE_set_RSA(e, RSA_get_default_method())
101 #ifndef OPENSSL_NO_DSA
102 || !ENGINE_set_DSA(e, DSA_get_default_method())
104 #ifndef OPENSSL_NO_DH
105 || !ENGINE_set_DH(e, DH_get_default_method())
107 || !ENGINE_set_RAND(e, RAND_SSLeay())
108 #ifdef TEST_ENG_OPENSSL_RC4
109 || !ENGINE_set_ciphers(e, openssl_ciphers)
111 #ifdef TEST_ENG_OPENSSL_SHA
112 || !ENGINE_set_digests(e, openssl_digests)
116 /* If we add errors to this ENGINE, ensure the error handling is setup here */
117 /* openssl_load_error_strings(); */
121 static ENGINE *engine_openssl(void)
123 ENGINE *ret = ENGINE_new();
126 if(!bind_helper(ret))
134 void ENGINE_load_openssl(void)
136 ENGINE *toadd = engine_openssl();
139 /* If the "add" worked, it gets a structural reference. So either way,
140 * we release our just-created reference. */
145 /* This stuff is needed if this ENGINE is being compiled into a self-contained
147 #ifdef ENGINE_DYNAMIC_SUPPORT
148 static int bind_fn(ENGINE *e, const char *id)
150 if(id && (strcmp(id, engine_openssl_id) != 0))
156 IMPLEMENT_DYNAMIC_CHECK_FN()
157 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
158 #endif /* ENGINE_DYNAMIC_SUPPORT */
160 #ifdef TEST_ENG_OPENSSL_RC4
161 /* This section of code compiles an "alternative implementation" of two modes of
162 * RC4 into this ENGINE. The result is that EVP_CIPHER operation for "rc4"
163 * should under normal circumstances go via this support rather than the default
164 * EVP support. There are other symbols to tweak the testing;
165 * TEST_ENC_OPENSSL_RC4_OTHERS - print a one line message to stderr each time
166 * we're asked for a cipher we don't support (should not happen).
167 * TEST_ENG_OPENSSL_RC4_P_INIT - print a one line message to stderr each time
168 * the "init_key" handler is called.
169 * TEST_ENG_OPENSSL_RC4_P_CIPHER - ditto for the "cipher" handler.
171 #include <openssl/evp.h>
172 #include <openssl/rc4.h>
173 #define TEST_RC4_KEY_SIZE 16
174 static int test_cipher_nids[] = {NID_rc4,NID_rc4_40};
175 static int test_cipher_nids_number = 2;
177 unsigned char key[TEST_RC4_KEY_SIZE];
180 #define test(ctx) ((TEST_RC4_KEY *)(ctx)->cipher_data)
181 static int test_rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
182 const unsigned char *iv, int enc)
184 #ifdef TEST_ENG_OPENSSL_RC4_P_INIT
185 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_init_key() called\n");
187 memcpy(&test(ctx)->key[0],key,EVP_CIPHER_CTX_key_length(ctx));
188 RC4_set_key(&test(ctx)->ks,EVP_CIPHER_CTX_key_length(ctx),
192 static int test_rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
193 const unsigned char *in, unsigned int inl)
195 #ifdef TEST_ENG_OPENSSL_RC4_P_CIPHER
196 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_cipher() called\n");
198 RC4(&test(ctx)->ks,inl,in,out);
201 static const EVP_CIPHER test_r4_cipher=
204 1,TEST_RC4_KEY_SIZE,0,
205 EVP_CIPH_VARIABLE_LENGTH,
209 sizeof(TEST_RC4_KEY),
214 static const EVP_CIPHER test_r4_40_cipher=
218 EVP_CIPH_VARIABLE_LENGTH,
222 sizeof(TEST_RC4_KEY),
227 static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
228 const int **nids, int nid)
232 /* We are returning a list of supported nids */
233 *nids = test_cipher_nids;
234 return test_cipher_nids_number;
236 /* We are being asked for a specific cipher */
238 *cipher = &test_r4_cipher;
239 else if(nid == NID_rc4_40)
240 *cipher = &test_r4_40_cipher;
243 #ifdef TEST_ENG_OPENSSL_RC4_OTHERS
244 fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) returning NULL for "
254 #ifdef TEST_ENG_OPENSSL_SHA
255 /* Much the same sort of comment as for TEST_ENG_OPENSSL_RC4 */
256 #include <openssl/evp.h>
257 #include <openssl/sha.h>
258 static int test_digest_nids[] = {NID_sha1};
259 static int test_digest_nids_number = 1;
260 static int test_sha1_init(EVP_MD_CTX *ctx)
262 #ifdef TEST_ENG_OPENSSL_SHA_P_INIT
263 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_init() called\n");
265 return SHA1_Init(ctx->md_data);
267 static int test_sha1_update(EVP_MD_CTX *ctx,const void *data,unsigned long count)
269 #ifdef TEST_ENG_OPENSSL_SHA_P_UPDATE
270 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_update() called\n");
272 return SHA1_Update(ctx->md_data,data,count);
274 static int test_sha1_final(EVP_MD_CTX *ctx,unsigned char *md)
276 #ifdef TEST_ENG_OPENSSL_SHA_P_FINAL
277 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_final() called\n");
279 return SHA1_Final(md,ctx->md_data);
281 static const EVP_MD test_sha_md=
284 NID_sha1WithRSAEncryption,
294 sizeof(EVP_MD *)+sizeof(SHA_CTX),
296 static int openssl_digests(ENGINE *e, const EVP_MD **digest,
297 const int **nids, int nid)
301 /* We are returning a list of supported nids */
302 *nids = test_digest_nids;
303 return test_digest_nids_number;
305 /* We are being asked for a specific digest */
307 *digest = &test_sha_md;
310 #ifdef TEST_ENG_OPENSSL_SHA_OTHERS
311 fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) returning NULL for "