1 /* $OpenBSD: cryptlib.c,v 1.45 2019/01/26 11:30:32 deraadt Exp $ */
2 /* ====================================================================
3 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * openssl-core@openssl.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 * acknowledgment:
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
54 */
55 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
56 * All rights reserved.
57 *
58 * This package is an SSL implementation written
59 * by Eric Young (eay@cryptsoft.com).
60 * The implementation was written so as to conform with Netscapes SSL.
61 *
62 * This library is free for commercial and non-commercial use as long as
63 * the following conditions are aheared to. The following conditions
64 * apply to all code found in this distribution, be it the RC4, RSA,
65 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
66 * included with this distribution is covered by the same copyright terms
67 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
68 *
69 * Copyright remains Eric Young's, and as such any Copyright notices in
70 * the code are not to be removed.
71 * If this package is used in a product, Eric Young should be given attribution
72 * as the author of the parts of the library used.
73 * This can be in the form of a textual message at program startup or
74 * in documentation (online or textual) provided with the package.
75 *
76 * Redistribution and use in source and binary forms, with or without
77 * modification, are permitted provided that the following conditions
78 * are met:
79 * 1. Redistributions of source code must retain the copyright
80 * notice, this list of conditions and the following disclaimer.
81 * 2. Redistributions in binary form must reproduce the above copyright
82 * notice, this list of conditions and the following disclaimer in the
83 * documentation and/or other materials provided with the distribution.
84 * 3. All advertising materials mentioning features or use of this software
85 * must display the following acknowledgement:
86 * "This product includes cryptographic software written by
87 * Eric Young (eay@cryptsoft.com)"
88 * The word 'cryptographic' can be left out if the rouines from the library
89 * being used are not cryptographic related :-).
90 * 4. If you include any Windows specific code (or a derivative thereof) from
91 * the apps directory (application code) you must include an acknowledgement:
92 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
93 *
94 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
95 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
97 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
98 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
99 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
100 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
101 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
102 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
103 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
104 * SUCH DAMAGE.
105 *
106 * The licence and distribution terms for any publically available version or
107 * derivative of this code cannot be changed. i.e. this code cannot simply be
108 * copied and put under another distribution licence
109 * [including the GNU Public Licence.]
110 */
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECDH support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 */
116
117 #include <pthread.h>
118 #include <stdarg.h>
119 #include <stdio.h>
120 #include <string.h>
121 #include <syslog.h>
122 #include <unistd.h>
123
124 #include <openssl/opensslconf.h>
125 #include <openssl/crypto.h>
126
127 static void (*locking_callback)(int mode, int type,
128 const char *file, int line) = NULL;
129 static int (*add_lock_callback)(int *pointer, int amount,
130 int type, const char *file, int line) = NULL;
131
132 int
CRYPTO_num_locks(void)133 CRYPTO_num_locks(void)
134 {
135 return 1;
136 }
137
138 unsigned long
CRYPTO_get_id_callback(void)139 (*CRYPTO_get_id_callback(void))(void)
140 {
141 return NULL;
142 }
143
144 void
CRYPTO_set_id_callback(unsigned long (* func)(void))145 CRYPTO_set_id_callback(unsigned long (*func)(void))
146 {
147 return;
148 }
149
150 unsigned long
CRYPTO_thread_id(void)151 CRYPTO_thread_id(void)
152 {
153 return (unsigned long)pthread_self();
154 }
155
156 void
CRYPTO_set_locking_callback(void (* func)(int mode,int lock_num,const char * file,int line))157 CRYPTO_set_locking_callback(void (*func)(int mode, int lock_num,
158 const char *file, int line))
159 {
160 locking_callback = func;
161 }
162
163 void
CRYPTO_get_locking_callback(void)164 (*CRYPTO_get_locking_callback(void))(int mode, int lock_num,
165 const char *file, int line)
166 {
167 return locking_callback;
168 }
169
170 void
CRYPTO_set_add_lock_callback(int (* func)(int * num,int mount,int lock_num,const char * file,int line))171 CRYPTO_set_add_lock_callback(int (*func)(int *num, int mount, int lock_num,
172 const char *file, int line))
173 {
174 add_lock_callback = func;
175 }
176
177 int
CRYPTO_get_add_lock_callback(void)178 (*CRYPTO_get_add_lock_callback(void))(int *num, int mount, int type,
179 const char *file, int line)
180 {
181 return add_lock_callback;
182 }
183
184 const char *
CRYPTO_get_lock_name(int lock_num)185 CRYPTO_get_lock_name(int lock_num)
186 {
187 return "";
188 }
189
190 struct CRYPTO_dynlock_value *
CRYPTO_get_dynlock_value(int i)191 CRYPTO_get_dynlock_value(int i)
192 {
193 return NULL;
194 }
195
CRYPTO_get_new_dynlockid(void)196 int CRYPTO_get_new_dynlockid(void)
197 {
198 return 0;
199 }
200
201 void
CRYPTO_destroy_dynlockid(int i)202 CRYPTO_destroy_dynlockid(int i)
203 {
204 return;
205 }
206
CRYPTO_get_new_lockid(char * name)207 int CRYPTO_get_new_lockid(char *name)
208 {
209 return 0;
210 }
211
212 int
CRYPTO_THREADID_set_callback(void (* func)(CRYPTO_THREADID *))213 CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *))
214 {
215 return 1;
216 }
217
218 void
CRYPTO_THREADID_get_callback(void)219 (*CRYPTO_THREADID_get_callback(void))(CRYPTO_THREADID *)
220 {
221 return NULL;
222 }
223
224 void
CRYPTO_THREADID_set_numeric(CRYPTO_THREADID * id,unsigned long val)225 CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val)
226 {
227 return;
228 }
229
230 void
CRYPTO_THREADID_set_pointer(CRYPTO_THREADID * id,void * ptr)231 CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr)
232 {
233 return;
234 }
235
236 void
CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value * (* dyn_create_function)(const char * file,int line))237 CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(
238 *dyn_create_function)(const char *file, int line))
239 {
240 return;
241 }
242
243 void
CRYPTO_set_dynlock_lock_callback(void (* dyn_lock_function)(int mode,struct CRYPTO_dynlock_value * l,const char * file,int line))244 CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)(
245 int mode, struct CRYPTO_dynlock_value *l, const char *file, int line))
246 {
247 return;
248 }
249
250 void
CRYPTO_set_dynlock_destroy_callback(void (* dyn_destroy_function)(struct CRYPTO_dynlock_value * l,const char * file,int line))251 CRYPTO_set_dynlock_destroy_callback(void (*dyn_destroy_function)(
252 struct CRYPTO_dynlock_value *l, const char *file, int line))
253 {
254 return;
255 }
256
257 struct CRYPTO_dynlock_value *
CRYPTO_get_dynlock_create_callback(void)258 (*CRYPTO_get_dynlock_create_callback(void))(
259 const char *file, int line)
260 {
261 return NULL;
262 }
263
264 void
CRYPTO_get_dynlock_lock_callback(void)265 (*CRYPTO_get_dynlock_lock_callback(void))(int mode,
266 struct CRYPTO_dynlock_value *l, const char *file, int line)
267 {
268 return NULL;
269 }
270
271 void
CRYPTO_get_dynlock_destroy_callback(void)272 (*CRYPTO_get_dynlock_destroy_callback(void))(
273 struct CRYPTO_dynlock_value *l, const char *file, int line)
274 {
275 return NULL;
276 }
277
278 void
CRYPTO_THREADID_current(CRYPTO_THREADID * id)279 CRYPTO_THREADID_current(CRYPTO_THREADID *id)
280 {
281 memset(id, 0, sizeof(*id));
282 id->val = (unsigned long)pthread_self();
283 }
284
285 int
CRYPTO_THREADID_cmp(const CRYPTO_THREADID * a,const CRYPTO_THREADID * b)286 CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b)
287 {
288 return memcmp(a, b, sizeof(*a));
289 }
290
291 void
CRYPTO_THREADID_cpy(CRYPTO_THREADID * dest,const CRYPTO_THREADID * src)292 CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src)
293 {
294 memcpy(dest, src, sizeof(*src));
295 }
296
297 unsigned long
CRYPTO_THREADID_hash(const CRYPTO_THREADID * id)298 CRYPTO_THREADID_hash(const CRYPTO_THREADID *id)
299 {
300 return id->val;
301 }
302
303 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
304 defined(__INTEL__) || \
305 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
306
307 uint64_t OPENSSL_ia32cap_P;
308
309 uint64_t
OPENSSL_cpu_caps(void)310 OPENSSL_cpu_caps(void)
311 {
312 return OPENSSL_ia32cap_P;
313 }
314
315 #if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM)
316 #define OPENSSL_CPUID_SETUP
317 #ifdef __DragonFly__
318 extern uint64_t OPENSSL_ia32_cpuid(void);
319 #endif
320 void
OPENSSL_cpuid_setup(void)321 OPENSSL_cpuid_setup(void)
322 {
323 static int trigger = 0;
324 #ifndef __DragonFly__
325 /* -Werror=nested-externs */
326 uint64_t OPENSSL_ia32_cpuid(void);
327 #endif
328
329 if (trigger)
330 return;
331 trigger = 1;
332 OPENSSL_ia32cap_P = OPENSSL_ia32_cpuid();
333 }
334 #endif
335
336 #else
337 uint64_t
OPENSSL_cpu_caps(void)338 OPENSSL_cpu_caps(void)
339 {
340 return 0;
341 }
342 #endif
343
344 #if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
345 void
OPENSSL_cpuid_setup(void)346 OPENSSL_cpuid_setup(void)
347 {
348 }
349 #endif
350
351 static void
OPENSSL_showfatal(const char * fmta,...)352 OPENSSL_showfatal(const char *fmta, ...)
353 {
354 #ifndef __DragonFly__
355 struct syslog_data sdata = SYSLOG_DATA_INIT;
356 #endif
357 va_list ap;
358
359 va_start(ap, fmta);
360 #ifndef __DragonFly__
361 /* syslog abusing? */
362 vsyslog_r(LOG_INFO|LOG_LOCAL2, &sdata, fmta, ap);
363 #else
364 vsyslog(LOG_INFO|LOG_LOCAL2, fmta, ap);
365 #endif
366 va_end(ap);
367 }
368
369 void
OpenSSLDie(const char * file,int line,const char * assertion)370 OpenSSLDie(const char *file, int line, const char *assertion)
371 {
372 OPENSSL_showfatal(
373 "uid %u cmd %s %s(%d): OpenSSL internal error, assertion failed: %s\n",
374 getuid(), getprogname(), file, line, assertion);
375 _exit(1);
376 }
377
378 int
CRYPTO_memcmp(const void * in_a,const void * in_b,size_t len)379 CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
380 {
381 size_t i;
382 const unsigned char *a = in_a;
383 const unsigned char *b = in_b;
384 unsigned char x = 0;
385
386 for (i = 0; i < len; i++)
387 x |= a[i] ^ b[i];
388
389 return x;
390 }
391