Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 | { |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 412 | locking_callback=func; |
| 413 | } |
| 414 | |
| 415 | void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type, |
| 416 | const char *file,int line)) |
| 417 | { |
| 418 | add_lock_callback=func; |
| 419 | } |
| 420 | |
| 421 | /* the memset() here and in set_pointer() seem overkill, but for the sake of |
| 422 | * CRYPTO_THREADID_cmp() this avoids any platform silliness that might cause two |
| 423 | * "equal" THREADID structs to not be memcmp()-identical. */ |
| 424 | void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val) |
| 425 | { |
| 426 | memset(id, 0, sizeof(*id)); |
| 427 | id->val = val; |
| 428 | } |
| 429 | |
| 430 | static const unsigned char hash_coeffs[] = { 3, 5, 7, 11, 13, 17, 19, 23 }; |
| 431 | void CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr) |
| 432 | { |
| 433 | unsigned char *dest = (void *)&id->val; |
| 434 | unsigned int accum = 0; |
| 435 | unsigned char dnum = sizeof(id->val); |
| 436 | |
| 437 | memset(id, 0, sizeof(*id)); |
| 438 | id->ptr = ptr; |
| 439 | if (sizeof(id->val) >= sizeof(id->ptr)) |
| 440 | { |
| 441 | /* 'ptr' can be embedded in 'val' without loss of uniqueness */ |
| 442 | id->val = (unsigned long)id->ptr; |
| 443 | return; |
| 444 | } |
| 445 | /* hash ptr ==> val. Each byte of 'val' gets the mod-256 total of a |
| 446 | * linear function over the bytes in 'ptr', the co-efficients of which |
| 447 | * are a sequence of low-primes (hash_coeffs is an 8-element cycle) - |
| 448 | * the starting prime for the sequence varies for each byte of 'val' |
| 449 | * (unique polynomials unless pointers are >64-bit). For added spice, |
| 450 | * the totals accumulate rather than restarting from zero, and the index |
| 451 | * of the 'val' byte is added each time (position dependence). If I was |
| 452 | * a black-belt, I'd scan big-endian pointers in reverse to give |
| 453 | * low-order bits more play, but this isn't crypto and I'd prefer nobody |
| 454 | * mistake it as such. Plus I'm lazy. */ |
| 455 | while (dnum--) |
| 456 | { |
| 457 | const unsigned char *src = (void *)&id->ptr; |
| 458 | unsigned char snum = sizeof(id->ptr); |
| 459 | while (snum--) |
| 460 | accum += *(src++) * hash_coeffs[(snum + dnum) & 7]; |
| 461 | accum += dnum; |
| 462 | *(dest++) = accum & 255; |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | int CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *)) |
| 467 | { |
| 468 | if (threadid_callback) |
| 469 | return 0; |
| 470 | threadid_callback = func; |
| 471 | return 1; |
| 472 | } |
| 473 | |
| 474 | void (*CRYPTO_THREADID_get_callback(void))(CRYPTO_THREADID *) |
| 475 | { |
| 476 | return threadid_callback; |
| 477 | } |
| 478 | |
| 479 | void CRYPTO_THREADID_current(CRYPTO_THREADID *id) |
| 480 | { |
| 481 | if (threadid_callback) |
| 482 | { |
| 483 | threadid_callback(id); |
| 484 | return; |
| 485 | } |
| 486 | #ifndef OPENSSL_NO_DEPRECATED |
| 487 | /* If the deprecated callback was set, fall back to that */ |
| 488 | if (id_callback) |
| 489 | { |
| 490 | CRYPTO_THREADID_set_numeric(id, id_callback()); |
| 491 | return; |
| 492 | } |
| 493 | #endif |
| 494 | /* Else pick a backup */ |
| 495 | #ifdef OPENSSL_SYS_WIN16 |
| 496 | CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentTask()); |
| 497 | #elif defined(OPENSSL_SYS_WIN32) |
| 498 | CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentThreadId()); |
| 499 | #elif defined(OPENSSL_SYS_BEOS) |
| 500 | CRYPTO_THREADID_set_numeric(id, (unsigned long)find_thread(NULL)); |
| 501 | #else |
| 502 | /* For everything else, default to using the address of 'errno' */ |
| 503 | CRYPTO_THREADID_set_pointer(id, &errno); |
| 504 | #endif |
| 505 | } |
| 506 | |
| 507 | int CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b) |
| 508 | { |
| 509 | return memcmp(a, b, sizeof(*a)); |
| 510 | } |
| 511 | |
| 512 | void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src) |
| 513 | { |
| 514 | memcpy(dest, src, sizeof(*src)); |
| 515 | } |
| 516 | |
| 517 | unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id) |
| 518 | { |
| 519 | return id->val; |
| 520 | } |
| 521 | |
| 522 | #ifndef OPENSSL_NO_DEPRECATED |
| 523 | unsigned long (*CRYPTO_get_id_callback(void))(void) |
| 524 | { |
| 525 | return(id_callback); |
| 526 | } |
| 527 | |
| 528 | void CRYPTO_set_id_callback(unsigned long (*func)(void)) |
| 529 | { |
| 530 | id_callback=func; |
| 531 | } |
| 532 | |
| 533 | unsigned long CRYPTO_thread_id(void) |
| 534 | { |
| 535 | unsigned long ret=0; |
| 536 | |
| 537 | if (id_callback == NULL) |
| 538 | { |
| 539 | #ifdef OPENSSL_SYS_WIN16 |
| 540 | ret=(unsigned long)GetCurrentTask(); |
| 541 | #elif defined(OPENSSL_SYS_WIN32) |
| 542 | ret=(unsigned long)GetCurrentThreadId(); |
| 543 | #elif defined(GETPID_IS_MEANINGLESS) |
| 544 | ret=1L; |
| 545 | #elif defined(OPENSSL_SYS_BEOS) |
| 546 | ret=(unsigned long)find_thread(NULL); |
| 547 | #else |
| 548 | ret=(unsigned long)getpid(); |
| 549 | #endif |
| 550 | } |
| 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 | { |
| 586 | if (dynlock_lock_callback != NULL) |
| 587 | { |
| 588 | struct CRYPTO_dynlock_value *pointer |
| 589 | = CRYPTO_get_dynlock_value(type); |
| 590 | |
| 591 | OPENSSL_assert(pointer != NULL); |
| 592 | |
| 593 | dynlock_lock_callback(mode, pointer, file, line); |
| 594 | |
| 595 | CRYPTO_destroy_dynlockid(type); |
| 596 | } |
| 597 | } |
| 598 | else |
| 599 | if (locking_callback != NULL) |
| 600 | locking_callback(mode,type,file,line); |
| 601 | } |
| 602 | |
| 603 | int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file, |
| 604 | int line) |
| 605 | { |
| 606 | int ret = 0; |
| 607 | |
| 608 | if (add_lock_callback != NULL) |
| 609 | { |
| 610 | #ifdef LOCK_DEBUG |
| 611 | int before= *pointer; |
| 612 | #endif |
| 613 | |
| 614 | ret=add_lock_callback(pointer,amount,type,file,line); |
| 615 | #ifdef LOCK_DEBUG |
| 616 | { |
| 617 | CRYPTO_THREADID id; |
| 618 | CRYPTO_THREADID_current(&id); |
| 619 | fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", |
| 620 | CRYPTO_THREADID_hash(&id), before,amount,ret, |
| 621 | CRYPTO_get_lock_name(type), |
| 622 | file,line); |
| 623 | } |
| 624 | #endif |
| 625 | } |
| 626 | else |
| 627 | { |
| 628 | CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line); |
| 629 | |
| 630 | ret= *pointer+amount; |
| 631 | #ifdef LOCK_DEBUG |
| 632 | { |
| 633 | CRYPTO_THREADID id; |
| 634 | CRYPTO_THREADID_current(&id); |
| 635 | fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", |
| 636 | CRYPTO_THREADID_hash(&id), |
| 637 | *pointer,amount,ret, |
| 638 | CRYPTO_get_lock_name(type), |
| 639 | file,line); |
| 640 | } |
| 641 | #endif |
| 642 | *pointer=ret; |
| 643 | CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line); |
| 644 | } |
| 645 | return(ret); |
| 646 | } |
| 647 | |
| 648 | const char *CRYPTO_get_lock_name(int type) |
| 649 | { |
| 650 | if (type < 0) |
| 651 | return("dynamic"); |
| 652 | else if (type < CRYPTO_NUM_LOCKS) |
| 653 | return(lock_names[type]); |
| 654 | else if (type-CRYPTO_NUM_LOCKS > sk_OPENSSL_STRING_num(app_locks)) |
| 655 | return("ERROR"); |
| 656 | else |
| 657 | return(sk_OPENSSL_STRING_value(app_locks,type-CRYPTO_NUM_LOCKS)); |
| 658 | } |
| 659 | |
| 660 | #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \ |
| 661 | defined(__INTEL__) || \ |
| 662 | defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64) |
| 663 | |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 664 | unsigned long OPENSSL_ia32cap_P=0; |
| 665 | unsigned long *OPENSSL_ia32cap_loc(void) { return &OPENSSL_ia32cap_P; } |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 666 | |
| 667 | #if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY) |
| 668 | #define OPENSSL_CPUID_SETUP |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 669 | void OPENSSL_cpuid_setup(void) |
| 670 | { static int trigger=0; |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 671 | unsigned long OPENSSL_ia32_cpuid(void); |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 672 | char *env; |
| 673 | |
| 674 | if (trigger) return; |
| 675 | |
| 676 | trigger=1; |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 677 | if ((env=getenv("OPENSSL_ia32cap"))) |
| 678 | OPENSSL_ia32cap_P = strtoul(env,NULL,0)|(1<<10); |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 679 | else |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 680 | OPENSSL_ia32cap_P = OPENSSL_ia32_cpuid()|(1<<10); |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 681 | /* |
| 682 | * |(1<<10) sets a reserved bit to signal that variable |
| 683 | * was initialized already... This is to avoid interference |
| 684 | * with cpuid snippets in ELF .init segment. |
| 685 | */ |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 686 | } |
| 687 | #endif |
| 688 | |
| 689 | #else |
| 690 | unsigned long *OPENSSL_ia32cap_loc(void) { return NULL; } |
| 691 | #endif |
| 692 | int OPENSSL_NONPIC_relocated = 0; |
| 693 | #if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ) |
| 694 | void OPENSSL_cpuid_setup(void) {} |
| 695 | #endif |
| 696 | |
| 697 | #if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL) |
| 698 | #ifdef __CYGWIN__ |
| 699 | /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */ |
| 700 | #include <windows.h> |
| 701 | /* this has side-effect of _WIN32 getting defined, which otherwise |
| 702 | * is mutually exclusive with __CYGWIN__... */ |
| 703 | #endif |
| 704 | |
| 705 | /* All we really need to do is remove the 'error' state when a thread |
| 706 | * detaches */ |
| 707 | |
| 708 | BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, |
| 709 | LPVOID lpvReserved) |
| 710 | { |
| 711 | switch(fdwReason) |
| 712 | { |
| 713 | case DLL_PROCESS_ATTACH: |
| 714 | OPENSSL_cpuid_setup(); |
| 715 | #if defined(_WIN32_WINNT) |
| 716 | { |
| 717 | IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL; |
| 718 | IMAGE_NT_HEADERS *nt_headers; |
| 719 | |
| 720 | if (dos_header->e_magic==IMAGE_DOS_SIGNATURE) |
| 721 | { |
| 722 | nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header |
| 723 | + dos_header->e_lfanew); |
| 724 | if (nt_headers->Signature==IMAGE_NT_SIGNATURE && |
| 725 | hinstDLL!=(HINSTANCE)(nt_headers->OptionalHeader.ImageBase)) |
| 726 | OPENSSL_NONPIC_relocated=1; |
| 727 | } |
| 728 | } |
| 729 | #endif |
| 730 | break; |
| 731 | case DLL_THREAD_ATTACH: |
| 732 | break; |
| 733 | case DLL_THREAD_DETACH: |
| 734 | break; |
| 735 | case DLL_PROCESS_DETACH: |
| 736 | break; |
| 737 | } |
| 738 | return(TRUE); |
| 739 | } |
| 740 | #endif |
| 741 | |
| 742 | #if defined(_WIN32) && !defined(__CYGWIN__) |
| 743 | #include <tchar.h> |
| 744 | #include <signal.h> |
| 745 | #ifdef __WATCOMC__ |
| 746 | #if defined(_UNICODE) || defined(__UNICODE__) |
| 747 | #define _vsntprintf _vsnwprintf |
| 748 | #else |
| 749 | #define _vsntprintf _vsnprintf |
| 750 | #endif |
| 751 | #endif |
| 752 | #ifdef _MSC_VER |
| 753 | #define alloca _alloca |
| 754 | #endif |
| 755 | |
| 756 | #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333 |
| 757 | int OPENSSL_isservice(void) |
| 758 | { HWINSTA h; |
| 759 | DWORD len; |
| 760 | WCHAR *name; |
| 761 | static union { void *p; int (*f)(void); } _OPENSSL_isservice = { NULL }; |
| 762 | |
| 763 | if (_OPENSSL_isservice.p == NULL) { |
| 764 | HANDLE h = GetModuleHandle(NULL); |
| 765 | if (h != NULL) |
| 766 | _OPENSSL_isservice.p = GetProcAddress(h,"_OPENSSL_isservice"); |
| 767 | if (_OPENSSL_isservice.p == NULL) |
| 768 | _OPENSSL_isservice.p = (void *)-1; |
| 769 | } |
| 770 | |
| 771 | if (_OPENSSL_isservice.p != (void *)-1) |
| 772 | return (*_OPENSSL_isservice.f)(); |
| 773 | |
| 774 | (void)GetDesktopWindow(); /* return value is ignored */ |
| 775 | |
| 776 | h = GetProcessWindowStation(); |
| 777 | if (h==NULL) return -1; |
| 778 | |
| 779 | if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) || |
| 780 | GetLastError() != ERROR_INSUFFICIENT_BUFFER) |
| 781 | return -1; |
| 782 | |
| 783 | if (len>512) return -1; /* paranoia */ |
| 784 | len++,len&=~1; /* paranoia */ |
| 785 | name=(WCHAR *)alloca(len+sizeof(WCHAR)); |
| 786 | if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len)) |
| 787 | return -1; |
| 788 | |
| 789 | len++,len&=~1; /* paranoia */ |
| 790 | name[len/sizeof(WCHAR)]=L'\0'; /* paranoia */ |
| 791 | #if 1 |
| 792 | /* This doesn't cover "interactive" services [working with real |
| 793 | * WinSta0's] nor programs started non-interactively by Task |
| 794 | * Scheduler [those are working with SAWinSta]. */ |
| 795 | if (wcsstr(name,L"Service-0x")) return 1; |
| 796 | #else |
| 797 | /* This covers all non-interactive programs such as services. */ |
| 798 | if (!wcsstr(name,L"WinSta0")) return 1; |
| 799 | #endif |
| 800 | else return 0; |
| 801 | } |
| 802 | #else |
| 803 | int OPENSSL_isservice(void) { return 0; } |
| 804 | #endif |
| 805 | |
| 806 | void OPENSSL_showfatal (const char *fmta,...) |
| 807 | { va_list ap; |
| 808 | TCHAR buf[256]; |
| 809 | const TCHAR *fmt; |
| 810 | #ifdef STD_ERROR_HANDLE /* what a dirty trick! */ |
| 811 | HANDLE h; |
| 812 | |
| 813 | if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL && |
| 814 | GetFileType(h)!=FILE_TYPE_UNKNOWN) |
| 815 | { /* must be console application */ |
| 816 | va_start (ap,fmta); |
| 817 | vfprintf (stderr,fmta,ap); |
| 818 | va_end (ap); |
| 819 | return; |
| 820 | } |
| 821 | #endif |
| 822 | |
| 823 | if (sizeof(TCHAR)==sizeof(char)) |
| 824 | fmt=(const TCHAR *)fmta; |
| 825 | else do |
| 826 | { int keepgoing; |
| 827 | size_t len_0=strlen(fmta)+1,i; |
| 828 | WCHAR *fmtw; |
| 829 | |
| 830 | fmtw = (WCHAR *)alloca(len_0*sizeof(WCHAR)); |
| 831 | if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; } |
| 832 | |
| 833 | #ifndef OPENSSL_NO_MULTIBYTE |
| 834 | if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0)) |
| 835 | #endif |
| 836 | for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i]; |
| 837 | |
| 838 | for (i=0;i<len_0;i++) |
| 839 | { if (fmtw[i]==L'%') do |
| 840 | { keepgoing=0; |
| 841 | switch (fmtw[i+1]) |
| 842 | { case L'0': case L'1': case L'2': case L'3': case L'4': |
| 843 | case L'5': case L'6': case L'7': case L'8': case L'9': |
| 844 | case L'.': case L'*': |
| 845 | case L'-': i++; keepgoing=1; break; |
| 846 | case L's': fmtw[i+1]=L'S'; break; |
| 847 | case L'S': fmtw[i+1]=L's'; break; |
| 848 | case L'c': fmtw[i+1]=L'C'; break; |
| 849 | case L'C': fmtw[i+1]=L'c'; break; |
| 850 | } |
| 851 | } while (keepgoing); |
| 852 | } |
| 853 | fmt = (const TCHAR *)fmtw; |
| 854 | } while (0); |
| 855 | |
| 856 | va_start (ap,fmta); |
| 857 | _vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap); |
| 858 | buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0'); |
| 859 | va_end (ap); |
| 860 | |
| 861 | #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333 |
| 862 | /* this -------------v--- guards NT-specific calls */ |
| 863 | if (GetVersion() < 0x80000000 && OPENSSL_isservice() > 0) |
| 864 | { HANDLE h = RegisterEventSource(0,_T("OPENSSL")); |
| 865 | const TCHAR *pmsg=buf; |
| 866 | ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0); |
| 867 | DeregisterEventSource(h); |
| 868 | } |
| 869 | else |
| 870 | #endif |
| 871 | MessageBox (NULL,buf,_T("OpenSSL: FATAL"),MB_OK|MB_ICONSTOP); |
| 872 | } |
| 873 | #else |
| 874 | void OPENSSL_showfatal (const char *fmta,...) |
| 875 | { va_list ap; |
| 876 | |
| 877 | va_start (ap,fmta); |
| 878 | vfprintf (stderr,fmta,ap); |
| 879 | va_end (ap); |
| 880 | } |
| 881 | int OPENSSL_isservice (void) { return 0; } |
| 882 | #endif |
| 883 | |
| 884 | void OpenSSLDie(const char *file,int line,const char *assertion) |
| 885 | { |
| 886 | OPENSSL_showfatal( |
| 887 | "%s(%d): OpenSSL internal error, assertion failed: %s\n", |
| 888 | file,line,assertion); |
| 889 | #if !defined(_WIN32) || defined(__CYGWIN__) |
| 890 | abort(); |
| 891 | #else |
| 892 | /* Win32 abort() customarily shows a dialog, but we just did that... */ |
| 893 | raise(SIGABRT); |
| 894 | _exit(3); |
| 895 | #endif |
| 896 | } |
| 897 | |
| 898 | void *OPENSSL_stderr(void) { return stderr; } |