155714Skris/* crypto/threads/th-lock.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8296341Sdelphij * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15296341Sdelphij * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22296341Sdelphij * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37296341Sdelphij * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40296341Sdelphij * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52296341Sdelphij * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include <stdlib.h> 6155714Skris#include <string.h> 6255714Skris#include <errno.h> 6355714Skris#ifdef LINUX 64296341Sdelphij# include <typedefs.h> 6555714Skris#endif 66109998Smarkm#ifdef OPENSSL_SYS_WIN32 67296341Sdelphij# include <windows.h> 6855714Skris#endif 6955714Skris#ifdef SOLARIS 70296341Sdelphij# include <synch.h> 71296341Sdelphij# include <thread.h> 7255714Skris#endif 7355714Skris#ifdef IRIX 74296341Sdelphij# include <ulocks.h> 75296341Sdelphij# include <sys/prctl.h> 7655714Skris#endif 7759191Skris#ifdef PTHREADS 78296341Sdelphij# include <pthread.h> 7959191Skris#endif 8055714Skris#include <openssl/lhash.h> 8155714Skris#include <openssl/crypto.h> 8255714Skris#include <openssl/buffer.h> 83160814Ssimon#include "../../e_os.h" 8455714Skris#include <openssl/x509.h> 8555714Skris#include <openssl/ssl.h> 8655714Skris#include <openssl/err.h> 8755714Skris 8859191Skrisvoid CRYPTO_thread_setup(void); 8955714Skrisvoid CRYPTO_thread_cleanup(void); 9055714Skris 91296341Sdelphijstatic void irix_locking_callback(int mode, int type, char *file, int line); 92296341Sdelphijstatic void solaris_locking_callback(int mode, int type, char *file, 93296341Sdelphij int line); 94296341Sdelphijstatic void win32_locking_callback(int mode, int type, char *file, int line); 95296341Sdelphijstatic void pthreads_locking_callback(int mode, int type, char *file, 96296341Sdelphij int line); 9755714Skris 98296341Sdelphijstatic unsigned long irix_thread_id(void); 99296341Sdelphijstatic unsigned long solaris_thread_id(void); 100296341Sdelphijstatic unsigned long pthreads_thread_id(void); 10155714Skris 102296341Sdelphij/*- 103296341Sdelphij * usage: 10455714Skris * CRYPTO_thread_setup(); 10559191Skris * application code 10655714Skris * CRYPTO_thread_cleanup(); 10755714Skris */ 10855714Skris 10955714Skris#define THREAD_STACK_SIZE (16*1024) 11055714Skris 111109998Smarkm#ifdef OPENSSL_SYS_WIN32 11255714Skris 11359191Skrisstatic HANDLE *lock_cs; 11455714Skris 11559191Skrisvoid CRYPTO_thread_setup(void) 116296341Sdelphij{ 117296341Sdelphij int i; 11855714Skris 119296341Sdelphij lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE)); 120296341Sdelphij if (!lock_cs) { 121296341Sdelphij /* Nothing we can do about this...void function! */ 122296341Sdelphij return; 123296341Sdelphij } 124296341Sdelphij for (i = 0; i < CRYPTO_num_locks(); i++) { 125296341Sdelphij lock_cs[i] = CreateMutex(NULL, FALSE, NULL); 126296341Sdelphij } 12755714Skris 128296341Sdelphij CRYPTO_set_locking_callback((void (*)(int, int, char *, int)) 129296341Sdelphij win32_locking_callback); 130296341Sdelphij /* id callback defined */ 131296341Sdelphij return (1); 132296341Sdelphij} 13355714Skris 13455714Skrisstatic void CRYPTO_thread_cleanup(void) 135296341Sdelphij{ 136296341Sdelphij int i; 13755714Skris 138296341Sdelphij CRYPTO_set_locking_callback(NULL); 139296341Sdelphij for (i = 0; i < CRYPTO_num_locks(); i++) 140296341Sdelphij CloseHandle(lock_cs[i]); 141296341Sdelphij OPENSSL_free(lock_cs); 142296341Sdelphij} 14355714Skris 14455714Skrisvoid win32_locking_callback(int mode, int type, char *file, int line) 145296341Sdelphij{ 146296341Sdelphij if (mode & CRYPTO_LOCK) { 147296341Sdelphij WaitForSingleObject(lock_cs[type], INFINITE); 148296341Sdelphij } else { 149296341Sdelphij ReleaseMutex(lock_cs[type]); 150296341Sdelphij } 151296341Sdelphij} 15255714Skris 153296341Sdelphij#endif /* OPENSSL_SYS_WIN32 */ 15455714Skris 15555714Skris#ifdef SOLARIS 15655714Skris 157296341Sdelphij# define USE_MUTEX 15855714Skris 159296341Sdelphij# ifdef USE_MUTEX 16059191Skrisstatic mutex_t *lock_cs; 161296341Sdelphij# else 16259191Skrisstatic rwlock_t *lock_cs; 163296341Sdelphij# endif 16459191Skrisstatic long *lock_count; 16555714Skris 16655714Skrisvoid CRYPTO_thread_setup(void) 167296341Sdelphij{ 168296341Sdelphij int i; 16955714Skris 170296341Sdelphij# ifdef USE_MUTEX 171296341Sdelphij lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t)); 172296341Sdelphij# else 173296341Sdelphij lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t)); 174296341Sdelphij# endif 175296341Sdelphij if (!lock_cs) { 176296341Sdelphij /* Nothing we can do about this...void function! */ 177296341Sdelphij return; 178296341Sdelphij } 179296341Sdelphij lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); 180296341Sdelphij for (i = 0; i < CRYPTO_num_locks(); i++) { 181296341Sdelphij lock_count[i] = 0; 182296341Sdelphij# ifdef USE_MUTEX 183296341Sdelphij mutex_init(&(lock_cs[i]), USYNC_THREAD, NULL); 184296341Sdelphij# else 185296341Sdelphij rwlock_init(&(lock_cs[i]), USYNC_THREAD, NULL); 186296341Sdelphij# endif 187296341Sdelphij } 18855714Skris 189296341Sdelphij CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id); 190296341Sdelphij CRYPTO_set_locking_callback((void (*)())solaris_locking_callback); 191296341Sdelphij} 19255714Skris 19355714Skrisvoid CRYPTO_thread_cleanup(void) 194296341Sdelphij{ 195296341Sdelphij int i; 19655714Skris 197296341Sdelphij CRYPTO_set_locking_callback(NULL); 198296341Sdelphij for (i = 0; i < CRYPTO_num_locks(); i++) { 199296341Sdelphij# ifdef USE_MUTEX 200296341Sdelphij mutex_destroy(&(lock_cs[i])); 201296341Sdelphij# else 202296341Sdelphij rwlock_destroy(&(lock_cs[i])); 203296341Sdelphij# endif 204296341Sdelphij } 205296341Sdelphij OPENSSL_free(lock_cs); 206296341Sdelphij OPENSSL_free(lock_count); 207296341Sdelphij} 20855714Skris 20955714Skrisvoid solaris_locking_callback(int mode, int type, char *file, int line) 210296341Sdelphij{ 211296341Sdelphij# if 0 212296341Sdelphij fprintf(stderr, "thread=%4d mode=%s lock=%s %s:%d\n", 213296341Sdelphij CRYPTO_thread_id(), 214296341Sdelphij (mode & CRYPTO_LOCK) ? "l" : "u", 215296341Sdelphij (type & CRYPTO_READ) ? "r" : "w", file, line); 216296341Sdelphij# endif 21755714Skris 218296341Sdelphij# if 0 219296341Sdelphij if (CRYPTO_LOCK_SSL_CERT == type) 220296341Sdelphij fprintf(stderr, "(t,m,f,l) %ld %d %s %d\n", 221296341Sdelphij CRYPTO_thread_id(), mode, file, line); 222296341Sdelphij# endif 223296341Sdelphij if (mode & CRYPTO_LOCK) { 224296341Sdelphij# ifdef USE_MUTEX 225296341Sdelphij mutex_lock(&(lock_cs[type])); 226296341Sdelphij# else 227296341Sdelphij if (mode & CRYPTO_READ) 228296341Sdelphij rw_rdlock(&(lock_cs[type])); 229296341Sdelphij else 230296341Sdelphij rw_wrlock(&(lock_cs[type])); 231296341Sdelphij# endif 232296341Sdelphij lock_count[type]++; 233296341Sdelphij } else { 234296341Sdelphij# ifdef USE_MUTEX 235296341Sdelphij mutex_unlock(&(lock_cs[type])); 236296341Sdelphij# else 237296341Sdelphij rw_unlock(&(lock_cs[type])); 238296341Sdelphij# endif 239296341Sdelphij } 240296341Sdelphij} 24155714Skris 24255714Skrisunsigned long solaris_thread_id(void) 243296341Sdelphij{ 244296341Sdelphij unsigned long ret; 24555714Skris 246296341Sdelphij ret = (unsigned long)thr_self(); 247296341Sdelphij return (ret); 248296341Sdelphij} 249296341Sdelphij#endif /* SOLARIS */ 25055714Skris 25155714Skris#ifdef IRIX 25255714Skris/* I don't think this works..... */ 25355714Skris 25455714Skrisstatic usptr_t *arena; 25559191Skrisstatic usema_t **lock_cs; 25655714Skris 25755714Skrisvoid CRYPTO_thread_setup(void) 258296341Sdelphij{ 259296341Sdelphij int i; 260296341Sdelphij char filename[20]; 26155714Skris 262296341Sdelphij lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *)); 263296341Sdelphij if (!lock_cs) { 264296341Sdelphij /* Nothing we can do about this...void function! */ 265296341Sdelphij return; 266296341Sdelphij } 26755714Skris 268296341Sdelphij strcpy(filename, "/tmp/mttest.XXXXXX"); 269296341Sdelphij mktemp(filename); 27055714Skris 271296341Sdelphij usconfig(CONF_STHREADIOOFF); 272296341Sdelphij usconfig(CONF_STHREADMALLOCOFF); 273296341Sdelphij usconfig(CONF_INITUSERS, 100); 274296341Sdelphij usconfig(CONF_LOCKTYPE, US_DEBUGPLUS); 275296341Sdelphij arena = usinit(filename); 276296341Sdelphij unlink(filename); 27755714Skris 278296341Sdelphij for (i = 0; i < CRYPTO_num_locks(); i++) { 279296341Sdelphij lock_cs[i] = usnewsema(arena, 1); 280296341Sdelphij } 28155714Skris 282296341Sdelphij CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id); 283296341Sdelphij CRYPTO_set_locking_callback((void (*)())irix_locking_callback); 284296341Sdelphij} 285296341Sdelphij 28655714Skrisvoid CRYPTO_thread_cleanup(void) 287296341Sdelphij{ 288296341Sdelphij int i; 28955714Skris 290296341Sdelphij CRYPTO_set_locking_callback(NULL); 291296341Sdelphij for (i = 0; i < CRYPTO_num_locks(); i++) { 292296341Sdelphij char buf[10]; 29355714Skris 294296341Sdelphij sprintf(buf, "%2d:", i); 295296341Sdelphij usdumpsema(lock_cs[i], stdout, buf); 296296341Sdelphij usfreesema(lock_cs[i], arena); 297296341Sdelphij } 298296341Sdelphij OPENSSL_free(lock_cs); 299296341Sdelphij} 30055714Skris 30155714Skrisvoid irix_locking_callback(int mode, int type, char *file, int line) 302296341Sdelphij{ 303296341Sdelphij if (mode & CRYPTO_LOCK) { 304296341Sdelphij uspsema(lock_cs[type]); 305296341Sdelphij } else { 306296341Sdelphij usvsema(lock_cs[type]); 307296341Sdelphij } 308296341Sdelphij} 30955714Skris 31055714Skrisunsigned long irix_thread_id(void) 311296341Sdelphij{ 312296341Sdelphij unsigned long ret; 31355714Skris 314296341Sdelphij ret = (unsigned long)getpid(); 315296341Sdelphij return (ret); 316296341Sdelphij} 317296341Sdelphij#endif /* IRIX */ 31855714Skris 31955714Skris/* Linux and a few others */ 32055714Skris#ifdef PTHREADS 32155714Skris 32259191Skrisstatic pthread_mutex_t *lock_cs; 32359191Skrisstatic long *lock_count; 32455714Skris 32555714Skrisvoid CRYPTO_thread_setup(void) 326296341Sdelphij{ 327296341Sdelphij int i; 32855714Skris 329296341Sdelphij lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t)); 330296341Sdelphij lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); 331296341Sdelphij if (!lock_cs || !lock_count) { 332296341Sdelphij /* Nothing we can do about this...void function! */ 333296341Sdelphij if (lock_cs) 334296341Sdelphij OPENSSL_free(lock_cs); 335296341Sdelphij if (lock_count) 336296341Sdelphij OPENSSL_free(lock_count); 337296341Sdelphij return; 338296341Sdelphij } 339296341Sdelphij for (i = 0; i < CRYPTO_num_locks(); i++) { 340296341Sdelphij lock_count[i] = 0; 341296341Sdelphij pthread_mutex_init(&(lock_cs[i]), NULL); 342296341Sdelphij } 34355714Skris 344296341Sdelphij CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id); 345296341Sdelphij CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback); 346296341Sdelphij} 34755714Skris 34855714Skrisvoid thread_cleanup(void) 349296341Sdelphij{ 350296341Sdelphij int i; 35155714Skris 352296341Sdelphij CRYPTO_set_locking_callback(NULL); 353296341Sdelphij for (i = 0; i < CRYPTO_num_locks(); i++) { 354296341Sdelphij pthread_mutex_destroy(&(lock_cs[i])); 355296341Sdelphij } 356296341Sdelphij OPENSSL_free(lock_cs); 357296341Sdelphij OPENSSL_free(lock_count); 358296341Sdelphij} 35955714Skris 360296341Sdelphijvoid pthreads_locking_callback(int mode, int type, char *file, int line) 361296341Sdelphij{ 362296341Sdelphij# if 0 363296341Sdelphij fprintf(stderr, "thread=%4d mode=%s lock=%s %s:%d\n", 364296341Sdelphij CRYPTO_thread_id(), 365296341Sdelphij (mode & CRYPTO_LOCK) ? "l" : "u", 366296341Sdelphij (type & CRYPTO_READ) ? "r" : "w", file, line); 367296341Sdelphij# endif 368296341Sdelphij# if 0 369296341Sdelphij if (CRYPTO_LOCK_SSL_CERT == type) 370296341Sdelphij fprintf(stderr, "(t,m,f,l) %ld %d %s %d\n", 371296341Sdelphij CRYPTO_thread_id(), mode, file, line); 372296341Sdelphij# endif 373296341Sdelphij if (mode & CRYPTO_LOCK) { 374296341Sdelphij pthread_mutex_lock(&(lock_cs[type])); 375296341Sdelphij lock_count[type]++; 376296341Sdelphij } else { 377296341Sdelphij pthread_mutex_unlock(&(lock_cs[type])); 378296341Sdelphij } 379296341Sdelphij} 38055714Skris 38155714Skrisunsigned long pthreads_thread_id(void) 382296341Sdelphij{ 383296341Sdelphij unsigned long ret; 38455714Skris 385296341Sdelphij ret = (unsigned long)pthread_self(); 386296341Sdelphij return (ret); 387296341Sdelphij} 38855714Skris 389296341Sdelphij#endif /* PTHREADS */ 390