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. 8280297Sjkim * 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). 15280297Sjkim * 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. 22280297Sjkim * 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 :-). 37280297Sjkim * 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)" 40280297Sjkim * 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. 52280297Sjkim * 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 64280297Sjkim# include <typedefs.h> 6555714Skris#endif 66109998Smarkm#ifdef OPENSSL_SYS_WIN32 67280297Sjkim# include <windows.h> 6855714Skris#endif 6955714Skris#ifdef SOLARIS 70280297Sjkim# include <synch.h> 71280297Sjkim# include <thread.h> 7255714Skris#endif 7355714Skris#ifdef IRIX 74280297Sjkim# include <ulocks.h> 75280297Sjkim# include <sys/prctl.h> 7655714Skris#endif 7759191Skris#ifdef PTHREADS 78280297Sjkim# 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 91280297Sjkimstatic void irix_locking_callback(int mode, int type, char *file, int line); 92280297Sjkimstatic void solaris_locking_callback(int mode, int type, char *file, 93280297Sjkim int line); 94280297Sjkimstatic void win32_locking_callback(int mode, int type, char *file, int line); 95280297Sjkimstatic void pthreads_locking_callback(int mode, int type, char *file, 96280297Sjkim int line); 9755714Skris 98280297Sjkimstatic unsigned long irix_thread_id(void); 99280297Sjkimstatic unsigned long solaris_thread_id(void); 100280297Sjkimstatic unsigned long pthreads_thread_id(void); 10155714Skris 102280297Sjkim/*- 103280297Sjkim * 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) 116280297Sjkim{ 117280297Sjkim int i; 11855714Skris 119280297Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(HANDLE)); 120284283Sjkim if (!lock_cs) { 121280297Sjkim /* Nothing we can do about this...void function! */ 122280297Sjkim return; 123280297Sjkim } 124280297Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 125280297Sjkim lock_cs[i] = CreateMutex(NULL, FALSE, NULL); 126280297Sjkim } 12755714Skris 128280297Sjkim CRYPTO_set_locking_callback((void (*)(int, int, char *, int)) 129280297Sjkim win32_locking_callback); 130280297Sjkim /* id callback defined */ 131280297Sjkim return (1); 132280297Sjkim} 13355714Skris 13455714Skrisstatic void CRYPTO_thread_cleanup(void) 135280297Sjkim{ 136280297Sjkim int i; 13755714Skris 138280297Sjkim CRYPTO_set_locking_callback(NULL); 139280297Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) 140280297Sjkim CloseHandle(lock_cs[i]); 141280297Sjkim OPENSSL_free(lock_cs); 142280297Sjkim} 14355714Skris 14455714Skrisvoid win32_locking_callback(int mode, int type, char *file, int line) 145280297Sjkim{ 146280297Sjkim if (mode & CRYPTO_LOCK) { 147280297Sjkim WaitForSingleObject(lock_cs[type], INFINITE); 148280297Sjkim } else { 149280297Sjkim ReleaseMutex(lock_cs[type]); 150280297Sjkim } 151280297Sjkim} 15255714Skris 153280297Sjkim#endif /* OPENSSL_SYS_WIN32 */ 15455714Skris 15555714Skris#ifdef SOLARIS 15655714Skris 157280297Sjkim# define USE_MUTEX 15855714Skris 159280297Sjkim# ifdef USE_MUTEX 16059191Skrisstatic mutex_t *lock_cs; 161280297Sjkim# else 16259191Skrisstatic rwlock_t *lock_cs; 163280297Sjkim# endif 16459191Skrisstatic long *lock_count; 16555714Skris 16655714Skrisvoid CRYPTO_thread_setup(void) 167280297Sjkim{ 168280297Sjkim int i; 16955714Skris 170280297Sjkim# ifdef USE_MUTEX 171280297Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(mutex_t)); 172280297Sjkim# else 173280297Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(rwlock_t)); 174280297Sjkim# endif 175284283Sjkim if (!lock_cs) { 176280297Sjkim /* Nothing we can do about this...void function! */ 177280297Sjkim return; 178280297Sjkim } 179280297Sjkim lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); 180280297Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 181280297Sjkim lock_count[i] = 0; 182280297Sjkim# ifdef USE_MUTEX 183280297Sjkim mutex_init(&(lock_cs[i]), USYNC_THREAD, NULL); 184280297Sjkim# else 185280297Sjkim rwlock_init(&(lock_cs[i]), USYNC_THREAD, NULL); 186280297Sjkim# endif 187280297Sjkim } 18855714Skris 189280297Sjkim CRYPTO_set_id_callback((unsigned long (*)())solaris_thread_id); 190280297Sjkim CRYPTO_set_locking_callback((void (*)())solaris_locking_callback); 191280297Sjkim} 19255714Skris 19355714Skrisvoid CRYPTO_thread_cleanup(void) 194280297Sjkim{ 195280297Sjkim int i; 19655714Skris 197280297Sjkim CRYPTO_set_locking_callback(NULL); 198280297Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 199280297Sjkim# ifdef USE_MUTEX 200280297Sjkim mutex_destroy(&(lock_cs[i])); 201280297Sjkim# else 202280297Sjkim rwlock_destroy(&(lock_cs[i])); 203280297Sjkim# endif 204280297Sjkim } 205280297Sjkim OPENSSL_free(lock_cs); 206280297Sjkim OPENSSL_free(lock_count); 207280297Sjkim} 20855714Skris 20955714Skrisvoid solaris_locking_callback(int mode, int type, char *file, int line) 210280297Sjkim{ 211280297Sjkim# if 0 212280297Sjkim fprintf(stderr, "thread=%4d mode=%s lock=%s %s:%d\n", 213280297Sjkim CRYPTO_thread_id(), 214280297Sjkim (mode & CRYPTO_LOCK) ? "l" : "u", 215280297Sjkim (type & CRYPTO_READ) ? "r" : "w", file, line); 216280297Sjkim# endif 21755714Skris 218280297Sjkim# if 0 219280297Sjkim if (CRYPTO_LOCK_SSL_CERT == type) 220280297Sjkim fprintf(stderr, "(t,m,f,l) %ld %d %s %d\n", 221280297Sjkim CRYPTO_thread_id(), mode, file, line); 222280297Sjkim# endif 223280297Sjkim if (mode & CRYPTO_LOCK) { 224280297Sjkim# ifdef USE_MUTEX 225280297Sjkim mutex_lock(&(lock_cs[type])); 226280297Sjkim# else 227280297Sjkim if (mode & CRYPTO_READ) 228280297Sjkim rw_rdlock(&(lock_cs[type])); 229280297Sjkim else 230280297Sjkim rw_wrlock(&(lock_cs[type])); 231280297Sjkim# endif 232280297Sjkim lock_count[type]++; 233280297Sjkim } else { 234280297Sjkim# ifdef USE_MUTEX 235280297Sjkim mutex_unlock(&(lock_cs[type])); 236280297Sjkim# else 237280297Sjkim rw_unlock(&(lock_cs[type])); 238280297Sjkim# endif 239280297Sjkim } 240280297Sjkim} 24155714Skris 24255714Skrisunsigned long solaris_thread_id(void) 243280297Sjkim{ 244280297Sjkim unsigned long ret; 24555714Skris 246280297Sjkim ret = (unsigned long)thr_self(); 247280297Sjkim return (ret); 248280297Sjkim} 249280297Sjkim#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) 258280297Sjkim{ 259280297Sjkim int i; 260280297Sjkim char filename[20]; 26155714Skris 262280297Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(usema_t *)); 263284283Sjkim if (!lock_cs) { 264280297Sjkim /* Nothing we can do about this...void function! */ 265280297Sjkim return; 266280297Sjkim } 26755714Skris 268280297Sjkim strcpy(filename, "/tmp/mttest.XXXXXX"); 269280297Sjkim mktemp(filename); 27055714Skris 271280297Sjkim usconfig(CONF_STHREADIOOFF); 272280297Sjkim usconfig(CONF_STHREADMALLOCOFF); 273280297Sjkim usconfig(CONF_INITUSERS, 100); 274280297Sjkim usconfig(CONF_LOCKTYPE, US_DEBUGPLUS); 275280297Sjkim arena = usinit(filename); 276280297Sjkim unlink(filename); 27755714Skris 278280297Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 279280297Sjkim lock_cs[i] = usnewsema(arena, 1); 280280297Sjkim } 28155714Skris 282280297Sjkim CRYPTO_set_id_callback((unsigned long (*)())irix_thread_id); 283280297Sjkim CRYPTO_set_locking_callback((void (*)())irix_locking_callback); 284280297Sjkim} 285280297Sjkim 28655714Skrisvoid CRYPTO_thread_cleanup(void) 287280297Sjkim{ 288280297Sjkim int i; 28955714Skris 290280297Sjkim CRYPTO_set_locking_callback(NULL); 291280297Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 292280297Sjkim char buf[10]; 29355714Skris 294280297Sjkim sprintf(buf, "%2d:", i); 295280297Sjkim usdumpsema(lock_cs[i], stdout, buf); 296280297Sjkim usfreesema(lock_cs[i], arena); 297280297Sjkim } 298280297Sjkim OPENSSL_free(lock_cs); 299280297Sjkim} 30055714Skris 30155714Skrisvoid irix_locking_callback(int mode, int type, char *file, int line) 302280297Sjkim{ 303280297Sjkim if (mode & CRYPTO_LOCK) { 304280297Sjkim uspsema(lock_cs[type]); 305280297Sjkim } else { 306280297Sjkim usvsema(lock_cs[type]); 307280297Sjkim } 308280297Sjkim} 30955714Skris 31055714Skrisunsigned long irix_thread_id(void) 311280297Sjkim{ 312280297Sjkim unsigned long ret; 31355714Skris 314280297Sjkim ret = (unsigned long)getpid(); 315280297Sjkim return (ret); 316280297Sjkim} 317280297Sjkim#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) 326280297Sjkim{ 327280297Sjkim int i; 32855714Skris 329280297Sjkim lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t)); 330280297Sjkim lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long)); 331284283Sjkim if (!lock_cs || !lock_count) { 332280297Sjkim /* Nothing we can do about this...void function! */ 333284283Sjkim if (lock_cs) 334280297Sjkim OPENSSL_free(lock_cs); 335284283Sjkim if (lock_count) 336280297Sjkim OPENSSL_free(lock_count); 337280297Sjkim return; 338280297Sjkim } 339280297Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 340280297Sjkim lock_count[i] = 0; 341280297Sjkim pthread_mutex_init(&(lock_cs[i]), NULL); 342280297Sjkim } 34355714Skris 344280297Sjkim CRYPTO_set_id_callback((unsigned long (*)())pthreads_thread_id); 345280297Sjkim CRYPTO_set_locking_callback((void (*)())pthreads_locking_callback); 346280297Sjkim} 34755714Skris 34855714Skrisvoid thread_cleanup(void) 349280297Sjkim{ 350280297Sjkim int i; 35155714Skris 352280297Sjkim CRYPTO_set_locking_callback(NULL); 353280297Sjkim for (i = 0; i < CRYPTO_num_locks(); i++) { 354280297Sjkim pthread_mutex_destroy(&(lock_cs[i])); 355280297Sjkim } 356280297Sjkim OPENSSL_free(lock_cs); 357280297Sjkim OPENSSL_free(lock_count); 358280297Sjkim} 35955714Skris 360280297Sjkimvoid pthreads_locking_callback(int mode, int type, char *file, int line) 361280297Sjkim{ 362280297Sjkim# if 0 363280297Sjkim fprintf(stderr, "thread=%4d mode=%s lock=%s %s:%d\n", 364280297Sjkim CRYPTO_thread_id(), 365280297Sjkim (mode & CRYPTO_LOCK) ? "l" : "u", 366280297Sjkim (type & CRYPTO_READ) ? "r" : "w", file, line); 367280297Sjkim# endif 368280297Sjkim# if 0 369280297Sjkim if (CRYPTO_LOCK_SSL_CERT == type) 370280297Sjkim fprintf(stderr, "(t,m,f,l) %ld %d %s %d\n", 371280297Sjkim CRYPTO_thread_id(), mode, file, line); 372280297Sjkim# endif 373280297Sjkim if (mode & CRYPTO_LOCK) { 374280297Sjkim pthread_mutex_lock(&(lock_cs[type])); 375280297Sjkim lock_count[type]++; 376280297Sjkim } else { 377280297Sjkim pthread_mutex_unlock(&(lock_cs[type])); 378280297Sjkim } 379280297Sjkim} 38055714Skris 38155714Skrisunsigned long pthreads_thread_id(void) 382280297Sjkim{ 383280297Sjkim unsigned long ret; 38455714Skris 385280297Sjkim ret = (unsigned long)pthread_self(); 386280297Sjkim return (ret); 387280297Sjkim} 38855714Skris 389280297Sjkim#endif /* PTHREADS */ 390