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 "<<ERROR>>", 129 "err", 130 "ex_data", 131 "x509", 132 "x509_info", 133 "x509_pkey", 134 "x509_crl", 135 "x509_req", 136 "dsa", 137 "rsa", 138 "evp_pkey", 139 "x509_store", 140 "ssl_ctx", 141 "ssl_cert", 142 "ssl_session", 143 "ssl_sess_cert", 144 "ssl", 145 "ssl_method", 146 "rand", 147 "rand2", 148 "debug_malloc", 149 "BIO", 150 "gethostbyname", 151 "getservbyname", 152 "readdir", 153 "RSA_blinding", 154 "dh", 155 "debug_malloc2", 156 "dso", 157 "dynlock", 158 "engine", 159 "ui", 160 "ecdsa", 161 "ec", 162 "ecdh", 163 "bn", 164 "ec_pre_comp", 165 "store", 166 "comp", 167 "fips", 168 "fips2", 169 #if CRYPTO_NUM_LOCKS != 41 170 # error "Inconsistency between crypto.h and cryptlib.c" 171 #endif 172 }; 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 */ 178 static STACK_OF(OPENSSL_STRING) *app_locks = NULL; 179 180 /* 181 * For applications that want a more dynamic way of handling threads, the 182 * following stack is used. These are externally numbered with negative 183 * numbers. 184 */ 185 static STACK_OF(CRYPTO_dynlock) *dyn_locks = NULL; 186 187 static void (MS_FAR *locking_callback) (int mode, int type, 188 const char *file, int line) = 0; 189 static int (MS_FAR *add_lock_callback) (int *pointer, int amount, 190 int type, const char *file, 191 int line) = 0; 192 #ifndef OPENSSL_NO_DEPRECATED 193 static unsigned long (MS_FAR *id_callback) (void) = 0; 194 #endif 195 static void (MS_FAR *threadid_callback) (CRYPTO_THREADID *) = 0; 196 static struct CRYPTO_dynlock_value *(MS_FAR *dynlock_create_callback) 197 (const char *file, int line) = 0; 198 static void (MS_FAR *dynlock_lock_callback) (int mode, 199 struct CRYPTO_dynlock_value *l, 200 const char *file, int line) = 0; 201 static void (MS_FAR *dynlock_destroy_callback) (struct CRYPTO_dynlock_value 202 *l, const char *file, 203 int line) = 0; 204 205 int CRYPTO_get_new_lockid(char *name) 206 { 207 char *str; 208 int i; 209 210 #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) 211 /* 212 * A hack to make Visual C++ 5.0 work correctly when linking as a DLL 213 * using /MT. Without this, the application cannot use any floating point 214 * printf's. It also seems to be needed for Visual C 1.5 (win16) 215 */ 216 SSLeay_MSVC5_hack = (double)name[0] * (double)name[1]; 217 #endif 218 219 if ((app_locks == NULL) 220 && ((app_locks = sk_OPENSSL_STRING_new_null()) == NULL)) { 221 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID, ERR_R_MALLOC_FAILURE); 222 return (0); 223 } 224 if ((str = BUF_strdup(name)) == NULL) { 225 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID, ERR_R_MALLOC_FAILURE); 226 return (0); 227 } 228 i = sk_OPENSSL_STRING_push(app_locks, str); 229 if (!i) 230 OPENSSL_free(str); 231 else 232 i += CRYPTO_NUM_LOCKS; /* gap of one :-) */ 233 return (i); 234 } 235 236 int CRYPTO_num_locks(void) 237 { 238 return CRYPTO_NUM_LOCKS; 239 } 240 241 int CRYPTO_get_new_dynlockid(void) 242 { 243 int i = 0; 244 CRYPTO_dynlock *pointer = NULL; 245 246 if (dynlock_create_callback == NULL) { 247 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID, 248 CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK); 249 return (0); 250 } 251 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); 252 if ((dyn_locks == NULL) 253 && ((dyn_locks = sk_CRYPTO_dynlock_new_null()) == NULL)) { 254 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 255 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID, ERR_R_MALLOC_FAILURE); 256 return (0); 257 } 258 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 259 260 pointer = (CRYPTO_dynlock *) OPENSSL_malloc(sizeof(CRYPTO_dynlock)); 261 if (pointer == NULL) { 262 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID, ERR_R_MALLOC_FAILURE); 263 return (0); 264 } 265 pointer->references = 1; 266 pointer->data = dynlock_create_callback(__FILE__, __LINE__); 267 if (pointer->data == NULL) { 268 OPENSSL_free(pointer); 269 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID, ERR_R_MALLOC_FAILURE); 270 return (0); 271 } 272 273 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); 274 /* First, try to find an existing empty slot */ 275 i = sk_CRYPTO_dynlock_find(dyn_locks, NULL); 276 /* If there was none, push, thereby creating a new one */ 277 if (i == -1) 278 /* 279 * Since sk_push() returns the number of items on the stack, not the 280 * location of the pushed item, we need to transform the returned 281 * number into a position, by decreasing it. 282 */ 283 i = sk_CRYPTO_dynlock_push(dyn_locks, pointer) - 1; 284 else 285 /* 286 * If we found a place with a NULL pointer, put our pointer in it. 287 */ 288 (void)sk_CRYPTO_dynlock_set(dyn_locks, i, pointer); 289 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 290 291 if (i == -1) { 292 dynlock_destroy_callback(pointer->data, __FILE__, __LINE__); 293 OPENSSL_free(pointer); 294 } else 295 i += 1; /* to avoid 0 */ 296 return -i; 297 } 298 299 void CRYPTO_destroy_dynlockid(int i) 300 { 301 CRYPTO_dynlock *pointer = NULL; 302 if (i) 303 i = -i - 1; 304 if (dynlock_destroy_callback == NULL) 305 return; 306 307 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); 308 309 if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) { 310 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 311 return; 312 } 313 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); 314 if (pointer != NULL) { 315 --pointer->references; 316 #ifdef REF_CHECK 317 if (pointer->references < 0) { 318 fprintf(stderr, 319 "CRYPTO_destroy_dynlockid, bad reference count\n"); 320 abort(); 321 } else 322 #endif 323 if (pointer->references <= 0) { 324 (void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL); 325 } else 326 pointer = NULL; 327 } 328 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 329 330 if (pointer) { 331 dynlock_destroy_callback(pointer->data, __FILE__, __LINE__); 332 OPENSSL_free(pointer); 333 } 334 } 335 336 struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i) 337 { 338 CRYPTO_dynlock *pointer = NULL; 339 if (i) 340 i = -i - 1; 341 342 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); 343 344 if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks)) 345 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); 346 if (pointer) 347 pointer->references++; 348 349 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 350 351 if (pointer) 352 return pointer->data; 353 return NULL; 354 } 355 356 struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void)) 357 (const char *file, int line) { 358 return (dynlock_create_callback); 359 } 360 361 void (*CRYPTO_get_dynlock_lock_callback(void)) (int mode, 362 struct CRYPTO_dynlock_value 363 *l, const char *file, 364 int line) { 365 return (dynlock_lock_callback); 366 } 367 368 void (*CRYPTO_get_dynlock_destroy_callback(void)) 369 (struct CRYPTO_dynlock_value *l, const char *file, int line) { 370 return (dynlock_destroy_callback); 371 } 372 373 void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func) 374 (const char *file, int line)) 375 { 376 dynlock_create_callback = func; 377 } 378 379 void CRYPTO_set_dynlock_lock_callback(void (*func) (int mode, 380 struct 381 CRYPTO_dynlock_value *l, 382 const char *file, 383 int line)) 384 { 385 dynlock_lock_callback = func; 386 } 387 388 void CRYPTO_set_dynlock_destroy_callback(void (*func) 389 (struct CRYPTO_dynlock_value *l, 390 const char *file, int line)) 391 { 392 dynlock_destroy_callback = func; 393 } 394 395 void (*CRYPTO_get_locking_callback(void)) (int mode, int type, 396 const char *file, int line) { 397 return (locking_callback); 398 } 399 400 int (*CRYPTO_get_add_lock_callback(void)) (int *num, int mount, int type, 401 const char *file, int line) { 402 return (add_lock_callback); 403 } 404 405 void CRYPTO_set_locking_callback(void (*func) (int mode, int type, 406 const char *file, int line)) 407 { 408 /* 409 * Calling this here ensures initialisation before any threads are 410 * started. 411 */ 412 OPENSSL_init(); 413 locking_callback = func; 414 } 415 416 void CRYPTO_set_add_lock_callback(int (*func) (int *num, int mount, int type, 417 const char *file, int line)) 418 { 419 add_lock_callback = func; 420 } 421 422 /* 423 * the memset() here and in set_pointer() seem overkill, but for the sake of 424 * CRYPTO_THREADID_cmp() this avoids any platform silliness that might cause 425 * two "equal" THREADID structs to not be memcmp()-identical. 426 */ 427 void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val) 428 { 429 memset(id, 0, sizeof(*id)); 430 id->val = val; 431 } 432 433 static const unsigned char hash_coeffs[] = { 3, 5, 7, 11, 13, 17, 19, 23 }; 434 435 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 */ 447 id->val = (unsigned long)id->ptr; 448 return; 449 } 450 /* 451 * hash ptr ==> val. Each byte of 'val' gets the mod-256 total of a 452 * linear function over the bytes in 'ptr', the co-efficients of which 453 * are a sequence of low-primes (hash_coeffs is an 8-element cycle) - the 454 * starting prime for the sequence varies for each byte of 'val' (unique 455 * polynomials unless pointers are >64-bit). For added spice, the totals 456 * accumulate rather than restarting from zero, and the index of the 457 * 'val' byte is added each time (position dependence). If I was a 458 * black-belt, I'd scan big-endian pointers in reverse to give low-order 459 * bits more play, but this isn't crypto and I'd prefer nobody mistake it 460 * as such. Plus I'm lazy. 461 */ 462 while (dnum--) { 463 const unsigned char *src = (void *)&id->ptr; 464 unsigned char snum = sizeof(id->ptr); 465 while (snum--) 466 accum += *(src++) * hash_coeffs[(snum + dnum) & 7]; 467 accum += dnum; 468 *(dest++) = accum & 255; 469 } 470 } 471 472 int CRYPTO_THREADID_set_callback(void (*func) (CRYPTO_THREADID *)) 473 { 474 if (threadid_callback) 475 return 0; 476 threadid_callback = func; 477 return 1; 478 } 479 480 void (*CRYPTO_THREADID_get_callback(void)) (CRYPTO_THREADID *) { 481 return threadid_callback; 482 } 483 484 void CRYPTO_THREADID_current(CRYPTO_THREADID *id) 485 { 486 if (threadid_callback) { 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 CRYPTO_THREADID_set_numeric(id, id_callback()); 494 return; 495 } 496 #endif 497 /* Else pick a backup */ 498 #ifdef OPENSSL_SYS_WIN16 499 CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentTask()); 500 #elif defined(OPENSSL_SYS_WIN32) 501 CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentThreadId()); 502 #elif defined(OPENSSL_SYS_BEOS) 503 CRYPTO_THREADID_set_numeric(id, (unsigned long)find_thread(NULL)); 504 #else 505 /* For everything else, default to using the address of 'errno' */ 506 CRYPTO_THREADID_set_pointer(id, (void *)&errno); 507 #endif 508 } 509 510 int CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b) 511 { 512 return memcmp(a, b, sizeof(*a)); 513 } 514 515 void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src) 516 { 517 memcpy(dest, src, sizeof(*src)); 518 } 519 520 unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id) 521 { 522 return id->val; 523 } 524 525 #ifndef OPENSSL_NO_DEPRECATED 526 unsigned long (*CRYPTO_get_id_callback(void)) (void) { 527 return (id_callback); 528 } 529 530 void CRYPTO_set_id_callback(unsigned long (*func) (void)) 531 { 532 id_callback = func; 533 } 534 535 unsigned long CRYPTO_thread_id(void) 536 { 537 unsigned long ret = 0; 538 539 if (id_callback == NULL) { 540 # ifdef OPENSSL_SYS_WIN16 541 ret = (unsigned long)GetCurrentTask(); 542 # elif defined(OPENSSL_SYS_WIN32) 543 ret = (unsigned long)GetCurrentThreadId(); 544 # elif defined(GETPID_IS_MEANINGLESS) 545 ret = 1L; 546 # elif defined(OPENSSL_SYS_BEOS) 547 ret = (unsigned long)find_thread(NULL); 548 # else 549 ret = (unsigned long)getpid(); 550 # endif 551 } else 552 ret = id_callback(); 553 return (ret); 554 } 555 #endif 556 557 void CRYPTO_lock(int mode, int type, const char *file, int line) 558 { 559 #ifdef LOCK_DEBUG 560 { 561 CRYPTO_THREADID id; 562 char *rw_text, *operation_text; 563 564 if (mode & CRYPTO_LOCK) 565 operation_text = "lock "; 566 else if (mode & CRYPTO_UNLOCK) 567 operation_text = "unlock"; 568 else 569 operation_text = "ERROR "; 570 571 if (mode & CRYPTO_READ) 572 rw_text = "r"; 573 else if (mode & CRYPTO_WRITE) 574 rw_text = "w"; 575 else 576 rw_text = "ERROR"; 577 578 CRYPTO_THREADID_current(&id); 579 fprintf(stderr, "lock:%08lx:(%s)%s %-18s %s:%d\n", 580 CRYPTO_THREADID_hash(&id), rw_text, operation_text, 581 CRYPTO_get_lock_name(type), file, line); 582 } 583 #endif 584 if (type < 0) { 585 if (dynlock_lock_callback != NULL) { 586 struct CRYPTO_dynlock_value *pointer 587 = CRYPTO_get_dynlock_value(type); 588 589 OPENSSL_assert(pointer != NULL); 590 591 dynlock_lock_callback(mode, pointer, file, line); 592 593 CRYPTO_destroy_dynlockid(type); 594 } 595 } else if (locking_callback != NULL) 596 locking_callback(mode, type, file, line); 597 } 598 599 int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file, 600 int line) 601 { 602 int ret = 0; 603 604 if (add_lock_callback != NULL) { 605 #ifdef LOCK_DEBUG 606 int before = *pointer; 607 #endif 608 609 ret = add_lock_callback(pointer, amount, type, file, line); 610 #ifdef LOCK_DEBUG 611 { 612 CRYPTO_THREADID id; 613 CRYPTO_THREADID_current(&id); 614 fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", 615 CRYPTO_THREADID_hash(&id), before, amount, ret, 616 CRYPTO_get_lock_name(type), file, line); 617 } 618 #endif 619 } else { 620 CRYPTO_lock(CRYPTO_LOCK | CRYPTO_WRITE, type, file, line); 621 622 ret = *pointer + amount; 623 #ifdef LOCK_DEBUG 624 { 625 CRYPTO_THREADID id; 626 CRYPTO_THREADID_current(&id); 627 fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", 628 CRYPTO_THREADID_hash(&id), 629 *pointer, amount, ret, 630 CRYPTO_get_lock_name(type), file, line); 631 } 632 #endif 633 *pointer = ret; 634 CRYPTO_lock(CRYPTO_UNLOCK | CRYPTO_WRITE, type, file, line); 635 } 636 return (ret); 637 } 638 639 const char *CRYPTO_get_lock_name(int type) 640 { 641 if (type < 0) 642 return ("dynamic"); 643 else if (type < CRYPTO_NUM_LOCKS) 644 return (lock_names[type]); 645 else if (type - CRYPTO_NUM_LOCKS > sk_OPENSSL_STRING_num(app_locks)) 646 return ("ERROR"); 647 else 648 return (sk_OPENSSL_STRING_value(app_locks, type - CRYPTO_NUM_LOCKS)); 649 } 650 651 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \ 652 defined(__INTEL__) || \ 653 defined(__x86_64) || defined(__x86_64__) || \ 654 defined(_M_AMD64) || defined(_M_X64) 655 656 extern unsigned int OPENSSL_ia32cap_P[4]; 657 unsigned long *OPENSSL_ia32cap_loc(void) 658 { 659 if (sizeof(long) == 4) 660 /* 661 * If 32-bit application pulls address of OPENSSL_ia32cap_P[0] 662 * clear second element to maintain the illusion that vector 663 * is 32-bit. 664 */ 665 OPENSSL_ia32cap_P[1] = 0; 666 667 OPENSSL_ia32cap_P[2] = 0; 668 669 return (unsigned long *)OPENSSL_ia32cap_P; 670 } 671 672 # if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY) 673 # define OPENSSL_CPUID_SETUP 674 # if defined(_WIN32) 675 typedef unsigned __int64 IA32CAP; 676 # else 677 typedef unsigned long long IA32CAP; 678 # endif 679 void OPENSSL_cpuid_setup(void) 680 { 681 static int trigger = 0; 682 IA32CAP OPENSSL_ia32_cpuid(unsigned int *); 683 IA32CAP vec; 684 char *env; 685 686 if (trigger) 687 return; 688 689 trigger = 1; 690 if ((env = getenv("OPENSSL_ia32cap"))) { 691 int off = (env[0] == '~') ? 1 : 0; 692 # if defined(_WIN32) 693 if (!sscanf(env + off, "%I64i", &vec)) 694 vec = strtoul(env + off, NULL, 0); 695 # else 696 if (!sscanf(env + off, "%lli", (long long *)&vec)) 697 vec = strtoul(env + off, NULL, 0); 698 # endif 699 if (off) 700 vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P) & ~vec; 701 else if (env[0] == ':') 702 vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P); 703 704 OPENSSL_ia32cap_P[2] = 0; 705 if ((env = strchr(env, ':'))) { 706 unsigned int vecx; 707 env++; 708 off = (env[0] == '~') ? 1 : 0; 709 vecx = strtoul(env + off, NULL, 0); 710 if (off) 711 OPENSSL_ia32cap_P[2] &= ~vecx; 712 else 713 OPENSSL_ia32cap_P[2] = vecx; 714 } 715 } else 716 vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P); 717 718 /* 719 * |(1<<10) sets a reserved bit to signal that variable 720 * was initialized already... This is to avoid interference 721 * with cpuid snippets in ELF .init segment. 722 */ 723 OPENSSL_ia32cap_P[0] = (unsigned int)vec | (1 << 10); 724 OPENSSL_ia32cap_P[1] = (unsigned int)(vec >> 32); 725 } 726 # else 727 unsigned int OPENSSL_ia32cap_P[4]; 728 # endif 729 730 #else 731 unsigned long *OPENSSL_ia32cap_loc(void) 732 { 733 return NULL; 734 } 735 #endif 736 int OPENSSL_NONPIC_relocated = 0; 737 #if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ) 738 void OPENSSL_cpuid_setup(void) 739 { 740 } 741 #endif 742 743 #if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL) 744 # ifdef __CYGWIN__ 745 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */ 746 # include <windows.h> 747 /* 748 * this has side-effect of _WIN32 getting defined, which otherwise is 749 * mutually exclusive with __CYGWIN__... 750 */ 751 # endif 752 753 /* 754 * All we really need to do is remove the 'error' state when a thread 755 * detaches 756 */ 757 758 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) 759 { 760 switch (fdwReason) { 761 case DLL_PROCESS_ATTACH: 762 OPENSSL_cpuid_setup(); 763 # if defined(_WIN32_WINNT) 764 { 765 IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *) hinstDLL; 766 IMAGE_NT_HEADERS *nt_headers; 767 768 if (dos_header->e_magic == IMAGE_DOS_SIGNATURE) { 769 nt_headers = (IMAGE_NT_HEADERS *) ((char *)dos_header 770 + dos_header->e_lfanew); 771 if (nt_headers->Signature == IMAGE_NT_SIGNATURE && 772 hinstDLL != 773 (HINSTANCE) (nt_headers->OptionalHeader.ImageBase)) 774 OPENSSL_NONPIC_relocated = 1; 775 } 776 } 777 # endif 778 break; 779 case DLL_THREAD_ATTACH: 780 break; 781 case DLL_THREAD_DETACH: 782 break; 783 case DLL_PROCESS_DETACH: 784 break; 785 } 786 return (TRUE); 787 } 788 #endif 789 790 #if defined(_WIN32) && !defined(__CYGWIN__) 791 # include <tchar.h> 792 # include <signal.h> 793 # ifdef __WATCOMC__ 794 # if defined(_UNICODE) || defined(__UNICODE__) 795 # define _vsntprintf _vsnwprintf 796 # else 797 # define _vsntprintf _vsnprintf 798 # endif 799 # endif 800 # ifdef _MSC_VER 801 # define alloca _alloca 802 # endif 803 804 # if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333 805 int OPENSSL_isservice(void) 806 { 807 HWINSTA h; 808 DWORD len; 809 WCHAR *name; 810 static union { 811 void *p; 812 int (*f) (void); 813 } _OPENSSL_isservice = { 814 NULL 815 }; 816 817 if (_OPENSSL_isservice.p == NULL) { 818 HANDLE h = GetModuleHandle(NULL); 819 if (h != NULL) 820 _OPENSSL_isservice.p = GetProcAddress(h, "_OPENSSL_isservice"); 821 if (_OPENSSL_isservice.p == NULL) 822 _OPENSSL_isservice.p = (void *)-1; 823 } 824 825 if (_OPENSSL_isservice.p != (void *)-1) 826 return (*_OPENSSL_isservice.f) (); 827 828 h = GetProcessWindowStation(); 829 if (h == NULL) 830 return -1; 831 832 if (GetUserObjectInformationW(h, UOI_NAME, NULL, 0, &len) || 833 GetLastError() != ERROR_INSUFFICIENT_BUFFER) 834 return -1; 835 836 if (len > 512) 837 return -1; /* paranoia */ 838 len++, len &= ~1; /* paranoia */ 839 name = (WCHAR *)alloca(len + sizeof(WCHAR)); 840 if (!GetUserObjectInformationW(h, UOI_NAME, name, len, &len)) 841 return -1; 842 843 len++, len &= ~1; /* paranoia */ 844 name[len / sizeof(WCHAR)] = L'\0'; /* paranoia */ 845 # if 1 846 /* 847 * This doesn't cover "interactive" services [working with real 848 * WinSta0's] nor programs started non-interactively by Task Scheduler 849 * [those are working with SAWinSta]. 850 */ 851 if (wcsstr(name, L"Service-0x")) 852 return 1; 853 # else 854 /* This covers all non-interactive programs such as services. */ 855 if (!wcsstr(name, L"WinSta0")) 856 return 1; 857 # endif 858 else 859 return 0; 860 } 861 # else 862 int OPENSSL_isservice(void) 863 { 864 return 0; 865 } 866 # endif 867 868 void OPENSSL_showfatal(const char *fmta, ...) 869 { 870 va_list ap; 871 TCHAR buf[256]; 872 const TCHAR *fmt; 873 # ifdef STD_ERROR_HANDLE /* what a dirty trick! */ 874 HANDLE h; 875 876 if ((h = GetStdHandle(STD_ERROR_HANDLE)) != NULL && 877 GetFileType(h) != FILE_TYPE_UNKNOWN) { 878 /* must be console application */ 879 int len; 880 DWORD out; 881 882 va_start(ap, fmta); 883 len = _vsnprintf((char *)buf, sizeof(buf), fmta, ap); 884 WriteFile(h, buf, len < 0 ? sizeof(buf) : (DWORD) len, &out, NULL); 885 va_end(ap); 886 return; 887 } 888 # endif 889 890 if (sizeof(TCHAR) == sizeof(char)) 891 fmt = (const TCHAR *)fmta; 892 else 893 do { 894 int keepgoing; 895 size_t len_0 = strlen(fmta) + 1, i; 896 WCHAR *fmtw; 897 898 fmtw = (WCHAR *)alloca(len_0 * sizeof(WCHAR)); 899 if (fmtw == NULL) { 900 fmt = (const TCHAR *)L"no stack?"; 901 break; 902 } 903 # ifndef OPENSSL_NO_MULTIBYTE 904 if (!MultiByteToWideChar(CP_ACP, 0, fmta, len_0, fmtw, len_0)) 905 # endif 906 for (i = 0; i < len_0; i++) 907 fmtw[i] = (WCHAR)fmta[i]; 908 909 for (i = 0; i < len_0; i++) { 910 if (fmtw[i] == L'%') 911 do { 912 keepgoing = 0; 913 switch (fmtw[i + 1]) { 914 case L'0': 915 case L'1': 916 case L'2': 917 case L'3': 918 case L'4': 919 case L'5': 920 case L'6': 921 case L'7': 922 case L'8': 923 case L'9': 924 case L'.': 925 case L'*': 926 case L'-': 927 i++; 928 keepgoing = 1; 929 break; 930 case L's': 931 fmtw[i + 1] = L'S'; 932 break; 933 case L'S': 934 fmtw[i + 1] = L's'; 935 break; 936 case L'c': 937 fmtw[i + 1] = L'C'; 938 break; 939 case L'C': 940 fmtw[i + 1] = L'c'; 941 break; 942 } 943 } while (keepgoing); 944 } 945 fmt = (const TCHAR *)fmtw; 946 } while (0); 947 948 va_start(ap, fmta); 949 _vsntprintf(buf, sizeof(buf) / sizeof(TCHAR) - 1, fmt, ap); 950 buf[sizeof(buf) / sizeof(TCHAR) - 1] = _T('\0'); 951 va_end(ap); 952 953 # if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333 954 /* this -------------v--- guards NT-specific calls */ 955 if (check_winnt() && OPENSSL_isservice() > 0) { 956 HANDLE hEventLog = RegisterEventSource(NULL, _T("OpenSSL")); 957 958 if (hEventLog != NULL) { 959 const TCHAR *pmsg = buf; 960 961 if (!ReportEvent(hEventLog, EVENTLOG_ERROR_TYPE, 0, 0, NULL, 962 1, 0, &pmsg, NULL)) { 963 #if defined(DEBUG) 964 /* 965 * We are in a situation where we tried to report a critical 966 * error and this failed for some reason. As a last resort, 967 * in debug builds, send output to the debugger or any other 968 * tool like DebugView which can monitor the output. 969 */ 970 OutputDebugString(pmsg); 971 #endif 972 } 973 974 (void)DeregisterEventSource(hEventLog); 975 } 976 } else 977 # endif 978 MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONERROR); 979 } 980 #else 981 void OPENSSL_showfatal(const char *fmta, ...) 982 { 983 va_list ap; 984 985 va_start(ap, fmta); 986 vfprintf(stderr, fmta, ap); 987 va_end(ap); 988 } 989 990 int OPENSSL_isservice(void) 991 { 992 return 0; 993 } 994 #endif 995 996 void OpenSSLDie(const char *file, int line, const char *assertion) 997 { 998 OPENSSL_showfatal 999 ("%s(%d): OpenSSL internal error, assertion failed: %s\n", file, line, 1000 assertion); 1001 #if !defined(_WIN32) || defined(__CYGWIN__) 1002 abort(); 1003 #else 1004 /* 1005 * Win32 abort() customarily shows a dialog, but we just did that... 1006 */ 1007 # if !defined(_WIN32_WCE) 1008 raise(SIGABRT); 1009 # endif 1010 _exit(3); 1011 #endif 1012 } 1013 1014 void *OPENSSL_stderr(void) 1015 { 1016 return stderr; 1017 } 1018 1019 int CRYPTO_memcmp(const volatile void *in_a, const volatile void *in_b, size_t len) 1020 { 1021 size_t i; 1022 const volatile unsigned char *a = in_a; 1023 const volatile unsigned char *b = in_b; 1024 unsigned char x = 0; 1025 1026 for (i = 0; i < len; i++) 1027 x |= a[i] ^ b[i]; 1028 1029 return x; 1030 } 1031