1 /* crypto/cryptlib.c */
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 "cryptlib.h"
118 #include <openssl/safestack.h>
119
120 #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
121 static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */
122 #endif
123
124 DECLARE_STACK_OF(CRYPTO_dynlock)
125
126 /* real #defines in crypto.h, keep these upto date */
127 static const char* const lock_names[CRYPTO_NUM_LOCKS] =
128 {
129 "<<ERROR>>",
130 "err",
131 "ex_data",
132 "x509",
133 "x509_info",
134 "x509_pkey",
135 "x509_crl",
136 "x509_req",
137 "dsa",
138 "rsa",
139 "evp_pkey",
140 "x509_store",
141 "ssl_ctx",
142 "ssl_cert",
143 "ssl_session",
144 "ssl_sess_cert",
145 "ssl",
146 "ssl_method",
147 "rand",
148 "rand2",
149 "debug_malloc",
150 "BIO",
151 "gethostbyname",
152 "getservbyname",
153 "readdir",
154 "RSA_blinding",
155 "dh",
156 "debug_malloc2",
157 "dso",
158 "dynlock",
159 "engine",
160 "ui",
161 "ecdsa",
162 "ec",
163 "ecdh",
164 "bn",
165 "ec_pre_comp",
166 "store",
167 "comp",
168 "fips",
169 "fips2",
170 #if CRYPTO_NUM_LOCKS != 41
171 # error "Inconsistency between crypto.h and cryptlib.c"
172 #endif
173 };
174
175 /* This is for applications to allocate new type names in the non-dynamic
176 array of lock names. These are numbered with positive numbers. */
177 static STACK_OF(OPENSSL_STRING) *app_locks=NULL;
178
179 /* For applications that want a more dynamic way of handling threads, the
180 following stack is used. These are externally numbered with negative
181 numbers. */
182 static STACK_OF(CRYPTO_dynlock) *dyn_locks=NULL;
183
184
185 static void (MS_FAR *locking_callback)(int mode,int type,
186 const char *file,int line)=0;
187 static int (MS_FAR *add_lock_callback)(int *pointer,int amount,
188 int type,const char *file,int line)=0;
189 #ifndef OPENSSL_NO_DEPRECATED
190 static unsigned long (MS_FAR *id_callback)(void)=0;
191 #endif
192 static void (MS_FAR *threadid_callback)(CRYPTO_THREADID *)=0;
193 static struct CRYPTO_dynlock_value *(MS_FAR *dynlock_create_callback)
194 (const char *file,int line)=0;
195 static void (MS_FAR *dynlock_lock_callback)(int mode,
196 struct CRYPTO_dynlock_value *l, const char *file,int line)=0;
197 static void (MS_FAR *dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l,
198 const char *file,int line)=0;
199
200 int CRYPTO_get_new_lockid(char *name)
201 {
202 char *str;
203 int i;
204
205 #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
206 /* A hack to make Visual C++ 5.0 work correctly when linking as
207 * a DLL using /MT. Without this, the application cannot use
208 * any floating point printf's.
209 * It also seems to be needed for Visual C 1.5 (win16) */
210 SSLeay_MSVC5_hack=(double)name[0]*(double)name[1];
211 #endif
212
213 if ((app_locks == NULL) && ((app_locks=sk_OPENSSL_STRING_new_null()) == NULL))
214 {
215 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
216 return(0);
217 }
218 if ((str=BUF_strdup(name)) == NULL)
219 {
220 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
221 return(0);
222 }
223 i=sk_OPENSSL_STRING_push(app_locks,str);
224 if (!i)
225 OPENSSL_free(str);
226 else
227 i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */
228 return(i);
229 }
230
231 int CRYPTO_num_locks(void)
232 {
233 return CRYPTO_NUM_LOCKS;
234 }
235
236 int CRYPTO_get_new_dynlockid(void)
237 {
238 int i = 0;
239 CRYPTO_dynlock *pointer = NULL;
240
241 if (dynlock_create_callback == NULL)
242 {
243 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK);
244 return(0);
245 }
246 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
247 if ((dyn_locks == NULL)
248 && ((dyn_locks=sk_CRYPTO_dynlock_new_null()) == NULL))
249 {
250 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
251 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
252 return(0);
253 }
254 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
255
256 pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock));
257 if (pointer == NULL)
258 {
259 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
260 return(0);
261 }
262 pointer->references = 1;
263 pointer->data = dynlock_create_callback(__FILE__,__LINE__);
264 if (pointer->data == NULL)
265 {
266 OPENSSL_free(pointer);
267 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE);
268 return(0);
269 }
270
271 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
272 /* First, try to find an existing empty slot */
273 i=sk_CRYPTO_dynlock_find(dyn_locks,NULL);
274 /* If there was none, push, thereby creating a new one */
275 if (i == -1)
276 /* Since sk_push() returns the number of items on the
277 stack, not the location of the pushed item, we need
278 to transform the returned number into a position,
279 by decreasing it. */
280 i=sk_CRYPTO_dynlock_push(dyn_locks,pointer) - 1;
281 else
282 /* If we found a place with a NULL pointer, put our pointer
283 in it. */
284 (void)sk_CRYPTO_dynlock_set(dyn_locks,i,pointer);
285 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
286
287 if (i == -1)
288 {
289 dynlock_destroy_callback(pointer->data,__FILE__,__LINE__);
290 OPENSSL_free(pointer);
291 }
292 else
293 i += 1; /* to avoid 0 */
294 return -i;
295 }
296
297 void CRYPTO_destroy_dynlockid(int i)
298 {
299 CRYPTO_dynlock *pointer = NULL;
300 if (i)
301 i = -i-1;
302 if (dynlock_destroy_callback == NULL)
303 return;
304
305 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
306
307 if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks))
308 {
309 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
310 return;
311 }
312 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
313 if (pointer != NULL)
314 {
315 --pointer->references;
316 #ifdef REF_CHECK
317 if (pointer->references < 0)
318 {
319 fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n");
320 abort();
321 }
322 else
323 #endif
324 if (pointer->references <= 0)
325 {
326 (void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
327 }
328 else
329 pointer = NULL;
330 }
331 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
332
333 if (pointer)
334 {
335 dynlock_destroy_callback(pointer->data,__FILE__,__LINE__);
336 OPENSSL_free(pointer);
337 }
338 }
339
340 struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i)
341 {
342 CRYPTO_dynlock *pointer = NULL;
343 if (i)
344 i = -i-1;
345
346 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
347
348 if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks))
349 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
350 if (pointer)
351 pointer->references++;
352
353 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
354
355 if (pointer)
356 return pointer->data;
357 return NULL;
358 }
359
360 struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void))
361 (const char *file,int line)
362 {
363 return(dynlock_create_callback);
364 }
365
366 void (*CRYPTO_get_dynlock_lock_callback(void))(int mode,
367 struct CRYPTO_dynlock_value *l, const char *file,int line)
368 {
369 return(dynlock_lock_callback);
370 }
371
372 void (*CRYPTO_get_dynlock_destroy_callback(void))
373 (struct CRYPTO_dynlock_value *l, const char *file,int line)
374 {
375 return(dynlock_destroy_callback);
376 }
377
378 void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func)
379 (const char *file, int line))
380 {
381 dynlock_create_callback=func;
382 }
383
384 void CRYPTO_set_dynlock_lock_callback(void (*func)(int mode,
385 struct CRYPTO_dynlock_value *l, const char *file, int line))
386 {
387 dynlock_lock_callback=func;
388 }
389
390 void CRYPTO_set_dynlock_destroy_callback(void (*func)
391 (struct CRYPTO_dynlock_value *l, const char *file, int line))
392 {
393 dynlock_destroy_callback=func;
394 }
395
396
397 void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file,
398 int line)
399 {
400 return(locking_callback);
401 }
402
403 int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type,
404 const char *file,int line)
405 {
406 return(add_lock_callback);
407 }
408
409 void CRYPTO_set_locking_callback(void (*func)(int mode,int type,
410 const char *file,int line))
411 {
412 /* Calling this here ensures initialisation before any threads
413 * are started.
414 */
415 OPENSSL_init();
416 locking_callback=func;
417 }
418
419 void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type,
420 const char *file,int line))
421 {
422 add_lock_callback=func;
423 }
424
425 /* the memset() here and in set_pointer() seem overkill, but for the sake of
426 * CRYPTO_THREADID_cmp() this avoids any platform silliness that might cause two
427 * "equal" THREADID structs to not be memcmp()-identical. */
428 void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val)
429 {
430 memset(id, 0, sizeof(*id));
431 id->val = val;
432 }
433
434 static const unsigned char hash_coeffs[] = { 3, 5, 7, 11, 13, 17, 19, 23 };
435 void CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr)
436 {
437 unsigned char *dest = (void *)&id->val;
438 unsigned int accum = 0;
439 unsigned char dnum = sizeof(id->val);
440
441 memset(id, 0, sizeof(*id));
442 id->ptr = ptr;
443 if (sizeof(id->val) >= sizeof(id->ptr))
444 {
445 /* 'ptr' can be embedded in 'val' without loss of uniqueness */
446 id->val = (unsigned long)id->ptr;
447 return;
448 }
449 /* hash ptr ==> val. Each byte of 'val' gets the mod-256 total of a
450 * linear function over the bytes in 'ptr', the co-efficients of which
451 * are a sequence of low-primes (hash_coeffs is an 8-element cycle) -
452 * the starting prime for the sequence varies for each byte of 'val'
453 * (unique polynomials unless pointers are >64-bit). For added spice,
454 * the totals accumulate rather than restarting from zero, and the index
455 * of the 'val' byte is added each time (position dependence). If I was
456 * a black-belt, I'd scan big-endian pointers in reverse to give
457 * low-order bits more play, but this isn't crypto and I'd prefer nobody
458 * mistake it as such. Plus I'm lazy. */
459 while (dnum--)
460 {
461 const unsigned char *src = (void *)&id->ptr;
462 unsigned char snum = sizeof(id->ptr);
463 while (snum--)
464 accum += *(src++) * hash_coeffs[(snum + dnum) & 7];
465 accum += dnum;
466 *(dest++) = accum & 255;
467 }
468 }
469
470 int CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *))
471 {
472 if (threadid_callback)
473 return 0;
474 threadid_callback = func;
475 return 1;
476 }
477
478 void (*CRYPTO_THREADID_get_callback(void))(CRYPTO_THREADID *)
479 {
480 return threadid_callback;
481 }
482
483 void CRYPTO_THREADID_current(CRYPTO_THREADID *id)
484 {
485 if (threadid_callback)
486 {
487 threadid_callback(id);
488 return;
489 }
490 #ifndef OPENSSL_NO_DEPRECATED
491 /* If the deprecated callback was set, fall back to that */
492 if (id_callback)
493 {
494 CRYPTO_THREADID_set_numeric(id, id_callback());
495 return;
496 }
497 #endif
498 /* Else pick a backup */
499 #ifdef OPENSSL_SYS_WIN16
500 CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentTask());
501 #elif defined(OPENSSL_SYS_WIN32)
502 CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentThreadId());
503 #elif defined(OPENSSL_SYS_BEOS)
504 CRYPTO_THREADID_set_numeric(id, (unsigned long)find_thread(NULL));
505 #else
506 /* For everything else, default to using the address of 'errno' */
507 CRYPTO_THREADID_set_pointer(id, (void*)&errno);
508 #endif
509 }
510
511 int CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b)
512 {
513 return memcmp(a, b, sizeof(*a));
514 }
515
516 void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src)
517 {
518 memcpy(dest, src, sizeof(*src));
519 }
520
521 unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id)
522 {
523 return id->val;
524 }
525
526 #ifndef OPENSSL_NO_DEPRECATED
527 unsigned long (*CRYPTO_get_id_callback(void))(void)
528 {
529 return(id_callback);
530 }
531
532 void CRYPTO_set_id_callback(unsigned long (*func)(void))
533 {
534 id_callback=func;
535 }
536
537 unsigned long CRYPTO_thread_id(void)
538 {
539 unsigned long ret=0;
540
541 if (id_callback == NULL)
542 {
543 #ifdef OPENSSL_SYS_WIN16
544 ret=(unsigned long)GetCurrentTask();
545 #elif defined(OPENSSL_SYS_WIN32)
546 ret=(unsigned long)GetCurrentThreadId();
547 #elif defined(GETPID_IS_MEANINGLESS)
548 ret=1L;
549 #elif defined(OPENSSL_SYS_BEOS)
550 ret=(unsigned long)find_thread(NULL);
551 #else
552 ret=(unsigned long)getpid();
553 #endif
554 }
555 else
556 ret=id_callback();
557 return(ret);
558 }
559 #endif
560
561 void CRYPTO_lock(int mode, int type, const char *file, int line)
562 {
563 #ifdef LOCK_DEBUG
564 {
565 CRYPTO_THREADID id;
566 char *rw_text,*operation_text;
567
568 if (mode & CRYPTO_LOCK)
569 operation_text="lock ";
570 else if (mode & CRYPTO_UNLOCK)
571 operation_text="unlock";
572 else
573 operation_text="ERROR ";
574
575 if (mode & CRYPTO_READ)
576 rw_text="r";
577 else if (mode & CRYPTO_WRITE)
578 rw_text="w";
579 else
580 rw_text="ERROR";
581
582 CRYPTO_THREADID_current(&id);
583 fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n",
584 CRYPTO_THREADID_hash(&id), rw_text, operation_text,
585 CRYPTO_get_lock_name(type), file, line);
586 }
587 #endif
588 if (type < 0)
589 {
590 if (dynlock_lock_callback != NULL)
591 {
592 struct CRYPTO_dynlock_value *pointer
593 = CRYPTO_get_dynlock_value(type);
594
595 OPENSSL_assert(pointer != NULL);
596
597 dynlock_lock_callback(mode, pointer, file, line);
598
599 CRYPTO_destroy_dynlockid(type);
600 }
601 }
602 else
603 if (locking_callback != NULL)
604 locking_callback(mode,type,file,line);
605 }
606
607 int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
608 int line)
609 {
610 int ret = 0;
611
612 if (add_lock_callback != NULL)
613 {
614 #ifdef LOCK_DEBUG
615 int before= *pointer;
616 #endif
617
618 ret=add_lock_callback(pointer,amount,type,file,line);
619 #ifdef LOCK_DEBUG
620 {
621 CRYPTO_THREADID id;
622 CRYPTO_THREADID_current(&id);
623 fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
624 CRYPTO_THREADID_hash(&id), before,amount,ret,
625 CRYPTO_get_lock_name(type),
626 file,line);
627 }
628 #endif
629 }
630 else
631 {
632 CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line);
633
634 ret= *pointer+amount;
635 #ifdef LOCK_DEBUG
636 {
637 CRYPTO_THREADID id;
638 CRYPTO_THREADID_current(&id);
639 fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
640 CRYPTO_THREADID_hash(&id),
641 *pointer,amount,ret,
642 CRYPTO_get_lock_name(type),
643 file,line);
644 }
645 #endif
646 *pointer=ret;
647 CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line);
648 }
649 return(ret);
650 }
651
652 const char *CRYPTO_get_lock_name(int type)
653 {
654 if (type < 0)
655 return("dynamic");
656 else if (type < CRYPTO_NUM_LOCKS)
657 return(lock_names[type]);
658 else if (type-CRYPTO_NUM_LOCKS > sk_OPENSSL_STRING_num(app_locks))
659 return("ERROR");
660 else
661 return(sk_OPENSSL_STRING_value(app_locks,type-CRYPTO_NUM_LOCKS));
662 }
663
664 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
665 defined(__INTEL__) || \
666 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
667
668 unsigned int OPENSSL_ia32cap_P[2];
669 unsigned long *OPENSSL_ia32cap_loc(void)
670 { if (sizeof(long)==4)
671 /*
672 * If 32-bit application pulls address of OPENSSL_ia32cap_P[0]
673 * clear second element to maintain the illusion that vector
674 * is 32-bit.
675 */
676 OPENSSL_ia32cap_P[1]=0;
677 return (unsigned long *)OPENSSL_ia32cap_P;
678 }
679
680 #if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
681 #define OPENSSL_CPUID_SETUP
682 #if defined(_WIN32)
683 typedef unsigned __int64 IA32CAP;
684 #else
685 typedef unsigned long long IA32CAP;
686 #endif
687 void OPENSSL_cpuid_setup(void)
688 { static int trigger=0;
689 IA32CAP OPENSSL_ia32_cpuid(void);
690 IA32CAP vec;
691 char *env;
692
693 if (trigger) return;
694
695 trigger=1;
696 if ((env=getenv("OPENSSL_ia32cap"))) {
697 int off = (env[0]=='~')?1:0;
698 #if defined(_WIN32)
699 if (!sscanf(env+off,"%I64i",&vec)) vec = strtoul(env+off,NULL,0);
700 #else
701 if (!sscanf(env+off,"%lli",(long long *)&vec)) vec = strtoul(env+off,NULL,0);
702 #endif
703 if (off) vec = OPENSSL_ia32_cpuid()&~vec;
704 }
705 else
706 vec = OPENSSL_ia32_cpuid();
707
708 /*
709 * |(1<<10) sets a reserved bit to signal that variable
710 * was initialized already... This is to avoid interference
711 * with cpuid snippets in ELF .init segment.
712 */
713 OPENSSL_ia32cap_P[0] = (unsigned int)vec|(1<<10);
714 OPENSSL_ia32cap_P[1] = (unsigned int)(vec>>32);
715 }
716 #endif
717
718 #else
719 unsigned long *OPENSSL_ia32cap_loc(void) { return NULL; }
720 #endif
721 int OPENSSL_NONPIC_relocated = 0;
722 #if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
723 void OPENSSL_cpuid_setup(void) {}
724 #endif
725
726 #if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
727 #ifdef __CYGWIN__
728 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
729 #include <windows.h>
730 /* this has side-effect of _WIN32 getting defined, which otherwise
731 * is mutually exclusive with __CYGWIN__... */
732 #endif
733
734 /* All we really need to do is remove the 'error' state when a thread
735 * detaches */
736
737 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
738 LPVOID lpvReserved)
739 {
740 switch(fdwReason)
741 {
742 case DLL_PROCESS_ATTACH:
743 OPENSSL_cpuid_setup();
744 #if defined(_WIN32_WINNT)
745 {
746 IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL;
747 IMAGE_NT_HEADERS *nt_headers;
748
749 if (dos_header->e_magic==IMAGE_DOS_SIGNATURE)
750 {
751 nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header
752 + dos_header->e_lfanew);
753 if (nt_headers->Signature==IMAGE_NT_SIGNATURE &&
754 hinstDLL!=(HINSTANCE)(nt_headers->OptionalHeader.ImageBase))
755 OPENSSL_NONPIC_relocated=1;
756 }
757 }
758 #endif
759 break;
760 case DLL_THREAD_ATTACH:
761 break;
762 case DLL_THREAD_DETACH:
763 break;
764 case DLL_PROCESS_DETACH:
765 break;
766 }
767 return(TRUE);
768 }
769 #endif
770
771 #if defined(_WIN32) && !defined(__CYGWIN__)
772 #include <tchar.h>
773 #include <signal.h>
774 #ifdef __WATCOMC__
775 #if defined(_UNICODE) || defined(__UNICODE__)
776 #define _vsntprintf _vsnwprintf
777 #else
778 #define _vsntprintf _vsnprintf
779 #endif
780 #endif
781 #ifdef _MSC_VER
782 #define alloca _alloca
783 #endif
784
785 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
786 int OPENSSL_isservice(void)
787 { HWINSTA h;
788 DWORD len;
789 WCHAR *name;
790 static union { void *p; int (*f)(void); } _OPENSSL_isservice = { NULL };
791
792 if (_OPENSSL_isservice.p == NULL) {
793 HANDLE h = GetModuleHandle(NULL);
794 if (h != NULL)
795 _OPENSSL_isservice.p = GetProcAddress(h,"_OPENSSL_isservice");
796 if (_OPENSSL_isservice.p == NULL)
797 _OPENSSL_isservice.p = (void *)-1;
798 }
799
800 if (_OPENSSL_isservice.p != (void *)-1)
801 return (*_OPENSSL_isservice.f)();
802
803 (void)GetDesktopWindow(); /* return value is ignored */
804
805 h = GetProcessWindowStation();
806 if (h==NULL) return -1;
807
808 if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) ||
809 GetLastError() != ERROR_INSUFFICIENT_BUFFER)
810 return -1;
811
812 if (len>512) return -1; /* paranoia */
813 len++,len&=~1; /* paranoia */
814 name=(WCHAR *)alloca(len+sizeof(WCHAR));
815 if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len))
816 return -1;
817
818 len++,len&=~1; /* paranoia */
819 name[len/sizeof(WCHAR)]=L'\0'; /* paranoia */
820 #if 1
821 /* This doesn't cover "interactive" services [working with real
822 * WinSta0's] nor programs started non-interactively by Task
823 * Scheduler [those are working with SAWinSta]. */
824 if (wcsstr(name,L"Service-0x")) return 1;
825 #else
826 /* This covers all non-interactive programs such as services. */
827 if (!wcsstr(name,L"WinSta0")) return 1;
828 #endif
829 else return 0;
830 }
831 #else
832 int OPENSSL_isservice(void) { return 0; }
833 #endif
834
835 void OPENSSL_showfatal (const char *fmta,...)
836 { va_list ap;
837 TCHAR buf[256];
838 const TCHAR *fmt;
839 #ifdef STD_ERROR_HANDLE /* what a dirty trick! */
840 HANDLE h;
841
842 if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
843 GetFileType(h)!=FILE_TYPE_UNKNOWN)
844 { /* must be console application */
845 va_start (ap,fmta);
846 vfprintf (stderr,fmta,ap);
847 va_end (ap);
848 return;
849 }
850 #endif
851
852 if (sizeof(TCHAR)==sizeof(char))
853 fmt=(const TCHAR *)fmta;
854 else do
855 { int keepgoing;
856 size_t len_0=strlen(fmta)+1,i;
857 WCHAR *fmtw;
858
859 fmtw = (WCHAR *)alloca(len_0*sizeof(WCHAR));
860 if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; }
861
862 #ifndef OPENSSL_NO_MULTIBYTE
863 if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0))
864 #endif
865 for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i];
866
867 for (i=0;i<len_0;i++)
868 { if (fmtw[i]==L'%') do
869 { keepgoing=0;
870 switch (fmtw[i+1])
871 { case L'0': case L'1': case L'2': case L'3': case L'4':
872 case L'5': case L'6': case L'7': case L'8': case L'9':
873 case L'.': case L'*':
874 case L'-': i++; keepgoing=1; break;
875 case L's': fmtw[i+1]=L'S'; break;
876 case L'S': fmtw[i+1]=L's'; break;
877 case L'c': fmtw[i+1]=L'C'; break;
878 case L'C': fmtw[i+1]=L'c'; break;
879 }
880 } while (keepgoing);
881 }
882 fmt = (const TCHAR *)fmtw;
883 } while (0);
884
885 va_start (ap,fmta);
886 _vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap);
887 buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0');
888 va_end (ap);
889
890 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
891 /* this -------------v--- guards NT-specific calls */
892 if (check_winnt() && OPENSSL_isservice() > 0)
893 { HANDLE h = RegisterEventSource(0,_T("OPENSSL"));
894 const TCHAR *pmsg=buf;
895 ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0);
896 DeregisterEventSource(h);
897 }
898 else
899 #endif
900 MessageBox (NULL,buf,_T("OpenSSL: FATAL"),MB_OK|MB_ICONSTOP);
901 }
902 #else
903 void OPENSSL_showfatal (const char *fmta,...)
904 { va_list ap;
905
906 va_start (ap,fmta);
907 vfprintf (stderr,fmta,ap);
908 va_end (ap);
909 }
910 int OPENSSL_isservice (void) { return 0; }
911 #endif
912
913 void OpenSSLDie(const char *file,int line,const char *assertion)
914 {
915 OPENSSL_showfatal(
916 "%s(%d): OpenSSL internal error, assertion failed: %s\n",
917 file,line,assertion);
918 #if !defined(_WIN32) || defined(__CYGWIN__)
919 abort();
920 #else
921 /* Win32 abort() customarily shows a dialog, but we just did that... */
922 raise(SIGABRT);
923 _exit(3);
924 #endif
925 }
926
927 void *OPENSSL_stderr(void) { return stderr; }
928
929 int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
930 {
931 size_t i;
932 const unsigned char *a = in_a;
933 const unsigned char *b = in_b;
934 unsigned char x = 0;
935
936 for (i = 0; i < len; i++)
937 x |= a[i] ^ b[i];
938
939 return x;
940 }