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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 52 * Hudson (tjh (at) cryptsoft.com). 53 * 54 */ 55 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 56 * All rights reserved. 57 * 58 * This package is an SSL implementation written 59 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 } 941
