diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2011-01-27 14:27:24 +0000 |
---|---|---|
committer | Dr. Stephen Henson <steve@openssl.org> | 2011-01-27 14:27:24 +0000 |
commit | ad6019d6c0d22f384838b2f9ca339bdabed331a5 (patch) | |
tree | fd78efc15fcef7e62cee17ec664c1bf18564fd5e | |
parent | a27de7b7fde7c18e7e4f28c6aa2d9f06635d3f08 (diff) |
Move locking and thread ID functions into new files lock.c and thr_id.c,
redirect locking to minimal FIPS_lock() function where required.
-rw-r--r-- | crypto/Makefile | 4 | ||||
-rw-r--r-- | crypto/cryptlib.c | 536 | ||||
-rw-r--r-- | crypto/crypto.h | 4 | ||||
-rw-r--r-- | crypto/lock.c | 518 | ||||
-rw-r--r-- | crypto/mem.c | 2 | ||||
-rw-r--r-- | crypto/thr_id.c | 258 |
6 files changed, 783 insertions, 539 deletions
diff --git a/crypto/Makefile b/crypto/Makefile index 14938c8ed7..00df865386 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -34,8 +34,8 @@ GENERAL=Makefile README crypto-lib.com install.com LIB= $(TOP)/libcrypto.a SHARED_LIB= libcrypto$(SHLIB_EXT) -LIBSRC= cryptlib.c mem.c mem_clr.c mem_dbg.c cversion.c ex_data.c cpt_err.c ebcdic.c uid.c o_time.c o_str.c o_dir.c -LIBOBJ= cryptlib.o mem.o mem_dbg.o cversion.o ex_data.o cpt_err.o ebcdic.o uid.o o_time.o o_str.o o_dir.o $(CPUID_OBJ) +LIBSRC= cryptlib.c mem.c mem_clr.c mem_dbg.c cversion.c ex_data.c cpt_err.c ebcdic.c uid.c o_time.c o_str.c o_dir.c thr_id.c lock.c +LIBOBJ= cryptlib.o mem.o mem_dbg.o cversion.o ex_data.o cpt_err.o ebcdic.o uid.o o_time.o o_str.o o_dir.o thr_id.o lock.o $(CPUID_OBJ) SRC= $(LIBSRC) diff --git a/crypto/cryptlib.c b/crypto/cryptlib.c index f896c23fe6..d52caa49ef 100644 --- a/crypto/cryptlib.c +++ b/crypto/cryptlib.c @@ -121,542 +121,6 @@ static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */ #endif -DECLARE_STACK_OF(CRYPTO_dynlock) - -/* real #defines in crypto.h, keep these upto date */ -static const char* const lock_names[CRYPTO_NUM_LOCKS] = - { - "<<ERROR>>", - "err", - "ex_data", - "x509", - "x509_info", - "x509_pkey", - "x509_crl", - "x509_req", - "dsa", - "rsa", - "evp_pkey", - "x509_store", - "ssl_ctx", - "ssl_cert", - "ssl_session", - "ssl_sess_cert", - "ssl", - "ssl_method", - "rand", - "rand2", - "debug_malloc", - "BIO", - "gethostbyname", - "getservbyname", - "readdir", - "RSA_blinding", - "dh", - "debug_malloc2", - "dso", - "dynlock", - "engine", - "ui", - "ecdsa", - "ec", - "ecdh", - "bn", - "ec_pre_comp", - "store", - "comp", - "fips", - "fips2", -#if CRYPTO_NUM_LOCKS != 41 -# error "Inconsistency between crypto.h and cryptlib.c" -#endif - }; - -/* This is for applications to allocate new type names in the non-dynamic - array of lock names. These are numbered with positive numbers. */ -static STACK_OF(OPENSSL_STRING) *app_locks=NULL; - -/* For applications that want a more dynamic way of handling threads, the - following stack is used. These are externally numbered with negative - numbers. */ -static STACK_OF(CRYPTO_dynlock) *dyn_locks=NULL; - - -static void (MS_FAR *locking_callback)(int mode,int type, - const char *file,int line)=0; -static int (MS_FAR *add_lock_callback)(int *pointer,int amount, - int type,const char *file,int line)=0; -#ifndef OPENSSL_NO_DEPRECATED -static unsigned long (MS_FAR *id_callback)(void)=0; -#endif -static void (MS_FAR *threadid_callback)(CRYPTO_THREADID *)=0; -static struct CRYPTO_dynlock_value *(MS_FAR *dynlock_create_callback) - (const char *file,int line)=0; -static void (MS_FAR *dynlock_lock_callback)(int mode, - struct CRYPTO_dynlock_value *l, const char *file,int line)=0; -static void (MS_FAR *dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l, - const char *file,int line)=0; - -int CRYPTO_get_new_lockid(char *name) - { - char *str; - int i; - -#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) - /* A hack to make Visual C++ 5.0 work correctly when linking as - * a DLL using /MT. Without this, the application cannot use - * any floating point printf's. - * It also seems to be needed for Visual C 1.5 (win16) */ - SSLeay_MSVC5_hack=(double)name[0]*(double)name[1]; -#endif - - if ((app_locks == NULL) && ((app_locks=sk_OPENSSL_STRING_new_null()) == NULL)) - { - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - if ((str=BUF_strdup(name)) == NULL) - { - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - i=sk_OPENSSL_STRING_push(app_locks,str); - if (!i) - OPENSSL_free(str); - else - i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */ - return(i); - } - -int CRYPTO_num_locks(void) - { - return CRYPTO_NUM_LOCKS; - } - -int CRYPTO_get_new_dynlockid(void) - { - int i = 0; - CRYPTO_dynlock *pointer = NULL; - - if (dynlock_create_callback == NULL) - { - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK); - return(0); - } - CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); - if ((dyn_locks == NULL) - && ((dyn_locks=sk_CRYPTO_dynlock_new_null()) == NULL)) - { - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - - pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock)); - if (pointer == NULL) - { - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - pointer->references = 1; - pointer->data = dynlock_create_callback(__FILE__,__LINE__); - if (pointer->data == NULL) - { - OPENSSL_free(pointer); - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - - CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); - /* First, try to find an existing empty slot */ - i=sk_CRYPTO_dynlock_find(dyn_locks,NULL); - /* If there was none, push, thereby creating a new one */ - if (i == -1) - /* Since sk_push() returns the number of items on the - stack, not the location of the pushed item, we need - to transform the returned number into a position, - by decreasing it. */ - i=sk_CRYPTO_dynlock_push(dyn_locks,pointer) - 1; - else - /* If we found a place with a NULL pointer, put our pointer - in it. */ - (void)sk_CRYPTO_dynlock_set(dyn_locks,i,pointer); - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - - if (i == -1) - { - dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); - OPENSSL_free(pointer); - } - else - i += 1; /* to avoid 0 */ - return -i; - } - -void CRYPTO_destroy_dynlockid(int i) - { - CRYPTO_dynlock *pointer = NULL; - if (i) - i = -i-1; - if (dynlock_destroy_callback == NULL) - return; - - CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); - - if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) - { - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - return; - } - pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); - if (pointer != NULL) - { - --pointer->references; -#ifdef REF_CHECK - if (pointer->references < 0) - { - fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n"); - abort(); - } - else -#endif - if (pointer->references <= 0) - { - (void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL); - } - else - pointer = NULL; - } - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - - if (pointer) - { - dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); - OPENSSL_free(pointer); - } - } - -struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i) - { - CRYPTO_dynlock *pointer = NULL; - if (i) - i = -i-1; - - CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); - - if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks)) - pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); - if (pointer) - pointer->references++; - - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - - if (pointer) - return pointer->data; - return NULL; - } - -struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void)) - (const char *file,int line) - { - return(dynlock_create_callback); - } - -void (*CRYPTO_get_dynlock_lock_callback(void))(int mode, - struct CRYPTO_dynlock_value *l, const char *file,int line) - { - return(dynlock_lock_callback); - } - -void (*CRYPTO_get_dynlock_destroy_callback(void)) - (struct CRYPTO_dynlock_value *l, const char *file,int line) - { - return(dynlock_destroy_callback); - } - -void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func) - (const char *file, int line)) - { - dynlock_create_callback=func; - } - -void CRYPTO_set_dynlock_lock_callback(void (*func)(int mode, - struct CRYPTO_dynlock_value *l, const char *file, int line)) - { - dynlock_lock_callback=func; - } - -void CRYPTO_set_dynlock_destroy_callback(void (*func) - (struct CRYPTO_dynlock_value *l, const char *file, int line)) - { - dynlock_destroy_callback=func; - } - - -void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file, - int line) - { - return(locking_callback); - } - -int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type, - const char *file,int line) - { - return(add_lock_callback); - } - -void CRYPTO_set_locking_callback(void (*func)(int mode,int type, - const char *file,int line)) - { - locking_callback=func; - } - -void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type, - const char *file,int line)) - { - add_lock_callback=func; - } - -/* the memset() here and in set_pointer() seem overkill, but for the sake of - * CRYPTO_THREADID_cmp() this avoids any platform silliness that might cause two - * "equal" THREADID structs to not be memcmp()-identical. */ -void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val) - { - memset(id, 0, sizeof(*id)); - id->val = val; - } - -static const unsigned char hash_coeffs[] = { 3, 5, 7, 11, 13, 17, 19, 23 }; -void CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr) - { - unsigned char *dest = (void *)&id->val; - unsigned int accum = 0; - unsigned char dnum = sizeof(id->val); - - memset(id, 0, sizeof(*id)); - id->ptr = ptr; - if (sizeof(id->val) >= sizeof(id->ptr)) - { - /* 'ptr' can be embedded in 'val' without loss of uniqueness */ - id->val = (unsigned long)id->ptr; - return; - } - /* hash ptr ==> val. Each byte of 'val' gets the mod-256 total of a - * linear function over the bytes in 'ptr', the co-efficients of which - * are a sequence of low-primes (hash_coeffs is an 8-element cycle) - - * the starting prime for the sequence varies for each byte of 'val' - * (unique polynomials unless pointers are >64-bit). For added spice, - * the totals accumulate rather than restarting from zero, and the index - * of the 'val' byte is added each time (position dependence). If I was - * a black-belt, I'd scan big-endian pointers in reverse to give - * low-order bits more play, but this isn't crypto and I'd prefer nobody - * mistake it as such. Plus I'm lazy. */ - while (dnum--) - { - const unsigned char *src = (void *)&id->ptr; - unsigned char snum = sizeof(id->ptr); - while (snum--) - accum += *(src++) * hash_coeffs[(snum + dnum) & 7]; - accum += dnum; - *(dest++) = accum & 255; - } - } - -int CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *)) - { - if (threadid_callback) - return 0; - threadid_callback = func; - return 1; - } - -void (*CRYPTO_THREADID_get_callback(void))(CRYPTO_THREADID *) - { - return threadid_callback; - } - -void CRYPTO_THREADID_current(CRYPTO_THREADID *id) - { - if (threadid_callback) - { - threadid_callback(id); - return; - } -#ifndef OPENSSL_NO_DEPRECATED - /* If the deprecated callback was set, fall back to that */ - if (id_callback) - { - CRYPTO_THREADID_set_numeric(id, id_callback()); - return; - } -#endif - /* Else pick a backup */ -#ifdef OPENSSL_SYS_WIN16 - CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentTask()); -#elif defined(OPENSSL_SYS_WIN32) - CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentThreadId()); -#elif defined(OPENSSL_SYS_BEOS) - CRYPTO_THREADID_set_numeric(id, (unsigned long)find_thread(NULL)); -#else - /* For everything else, default to using the address of 'errno' */ - CRYPTO_THREADID_set_pointer(id, &errno); -#endif - } - -int CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b) - { - return memcmp(a, b, sizeof(*a)); - } - -void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src) - { - memcpy(dest, src, sizeof(*src)); - } - -unsigned long CRYPTO_THREADID_hash(const CRYPTO_THREADID *id) - { - return id->val; - } - -#ifndef OPENSSL_NO_DEPRECATED -unsigned long (*CRYPTO_get_id_callback(void))(void) - { - return(id_callback); - } - -void CRYPTO_set_id_callback(unsigned long (*func)(void)) - { - id_callback=func; - } - -unsigned long CRYPTO_thread_id(void) - { - unsigned long ret=0; - - if (id_callback == NULL) - { -#ifdef OPENSSL_SYS_WIN16 - ret=(unsigned long)GetCurrentTask(); -#elif defined(OPENSSL_SYS_WIN32) - ret=(unsigned long)GetCurrentThreadId(); -#elif defined(GETPID_IS_MEANINGLESS) - ret=1L; -#elif defined(OPENSSL_SYS_BEOS) - ret=(unsigned long)find_thread(NULL); -#else - ret=(unsigned long)getpid(); -#endif - } - else - ret=id_callback(); - return(ret); - } -#endif - -void CRYPTO_lock(int mode, int type, const char *file, int line) - { -#ifdef LOCK_DEBUG - { - CRYPTO_THREADID id; - char *rw_text,*operation_text; - - if (mode & CRYPTO_LOCK) - operation_text="lock "; - else if (mode & CRYPTO_UNLOCK) - operation_text="unlock"; - else - operation_text="ERROR "; - - if (mode & CRYPTO_READ) - rw_text="r"; - else if (mode & CRYPTO_WRITE) - rw_text="w"; - else - rw_text="ERROR"; - - CRYPTO_THREADID_current(&id); - fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n", - CRYPTO_THREADID_hash(&id), rw_text, operation_text, - CRYPTO_get_lock_name(type), file, line); - } -#endif - if (type < 0) - { - if (dynlock_lock_callback != NULL) - { - struct CRYPTO_dynlock_value *pointer - = CRYPTO_get_dynlock_value(type); - - OPENSSL_assert(pointer != NULL); - - dynlock_lock_callback(mode, pointer, file, line); - - CRYPTO_destroy_dynlockid(type); - } - } - else - if (locking_callback != NULL) - locking_callback(mode,type,file,line); - } - -int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file, - int line) - { - int ret = 0; - - if (add_lock_callback != NULL) - { -#ifdef LOCK_DEBUG - int before= *pointer; -#endif - - ret=add_lock_callback(pointer,amount,type,file,line); -#ifdef LOCK_DEBUG - { - CRYPTO_THREADID id; - CRYPTO_THREADID_current(&id); - fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", - CRYPTO_THREADID_hash(&id), before,amount,ret, - CRYPTO_get_lock_name(type), - file,line); - } -#endif - } - else - { - CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line); - - ret= *pointer+amount; -#ifdef LOCK_DEBUG - { - CRYPTO_THREADID id; - CRYPTO_THREADID_current(&id); - fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", - CRYPTO_THREADID_hash(&id), - *pointer,amount,ret, - CRYPTO_get_lock_name(type), - file,line); - } -#endif - *pointer=ret; - CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line); - } - return(ret); - } - -const char *CRYPTO_get_lock_name(int type) - { - if (type < 0) - return("dynamic"); - else if (type < CRYPTO_NUM_LOCKS) - return(lock_names[type]); - else if (type-CRYPTO_NUM_LOCKS > sk_OPENSSL_STRING_num(app_locks)) - return("ERROR"); - else - return(sk_OPENSSL_STRING_value(app_locks,type-CRYPTO_NUM_LOCKS)); - } - #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \ defined(__INTEL__) || \ defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64) diff --git a/crypto/crypto.h b/crypto/crypto.h index 5089c65882..84d3520ec2 100644 --- a/crypto/crypto.h +++ b/crypto/crypto.h @@ -249,6 +249,10 @@ typedef struct openssl_item_st #define CRYPTO_add(a,b,c) ((*(a))+=(b)) #endif +#if defined(OPENSSL_FIPSCANISTER) && defined(OPENSSL_FIPSEVP) +#define CRYPTO_lock FIPS_lock +#endif + /* Some applications as well as some parts of OpenSSL need to allocate and deallocate locks in a dynamic fashion. The following typedef makes this possible in a type-safe manner. */ diff --git a/crypto/lock.c b/crypto/lock.c new file mode 100644 index 0000000000..49db044fc1 --- /dev/null +++ b/crypto/lock.c @@ -0,0 +1,518 @@ +/* crypto/cryptlib.c */ +/* ==================================================================== + * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * ECDH support in OpenSSL originally developed by + * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. + */ + +#include "cryptlib.h" +#include <openssl/safestack.h> + +#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) +static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */ +#endif + +DECLARE_STACK_OF(CRYPTO_dynlock) + +/* real #defines in crypto.h, keep these upto date */ +static const char* const lock_names[CRYPTO_NUM_LOCKS] = + { + "<<ERROR>>", + "err", + "ex_data", + "x509", + "x509_info", + "x509_pkey", + "x509_crl", + "x509_req", + "dsa", + "rsa", + "evp_pkey", + "x509_store", + "ssl_ctx", + "ssl_cert", + "ssl_session", + "ssl_sess_cert", + "ssl", + "ssl_method", + "rand", + "rand2", + "debug_malloc", + "BIO", + "gethostbyname", + "getservbyname", + "readdir", + "RSA_blinding", + "dh", + "debug_malloc2", + "dso", + "dynlock", + "engine", + "ui", + "ecdsa", + "ec", + "ecdh", + "bn", + "ec_pre_comp", + "store", + "comp", + "fips", + "fips2", +#if CRYPTO_NUM_LOCKS != 41 +# error "Inconsistency between crypto.h and cryptlib.c" +#endif + }; + +/* This is for applications to allocate new type names in the non-dynamic + array of lock names. These are numbered with positive numbers. */ +static STACK_OF(OPENSSL_STRING) *app_locks=NULL; + +/* For applications that want a more dynamic way of handling threads, the + following stack is used. These are externally numbered with negative + numbers. */ +static STACK_OF(CRYPTO_dynlock) *dyn_locks=NULL; + + +static void (MS_FAR *locking_callback)(int mode,int type, + const char *file,int line)=0; +static int (MS_FAR *add_lock_callback)(int *pointer,int amount, + int type,const char *file,int line)=0; +static struct CRYPTO_dynlock_value *(MS_FAR *dynlock_create_callback) + (const char *file,int line)=0; +static void (MS_FAR *dynlock_lock_callback)(int mode, + struct CRYPTO_dynlock_value *l, const char *file,int line)=0; +static void (MS_FAR *dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l, + const char *file,int line)=0; + +int CRYPTO_get_new_lockid(char *name) + { + char *str; + int i; + +#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) + /* A hack to make Visual C++ 5.0 work correctly when linking as + * a DLL using /MT. Without this, the application cannot use + * any floating point printf's. + * It also seems to be needed for Visual C 1.5 (win16) */ + SSLeay_MSVC5_hack=(double)name[0]*(double)name[1]; +#endif + + if ((app_locks == NULL) && ((app_locks=sk_OPENSSL_STRING_new_null()) == NULL)) + { + CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); + return(0); + } + if ((str=BUF_strdup(name)) == NULL) + { + CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); + return(0); + } + i=sk_OPENSSL_STRING_push(app_locks,str); + if (!i) + OPENSSL_free(str); + else + i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */ + return(i); + } + +int CRYPTO_num_locks(void) + { + return CRYPTO_NUM_LOCKS; + } + +int CRYPTO_get_new_dynlockid(void) + { + int i = 0; + CRYPTO_dynlock *pointer = NULL; + + if (dynlock_create_callback == NULL) + { + CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK); + return(0); + } + CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); + if ((dyn_locks == NULL) + && ((dyn_locks=sk_CRYPTO_dynlock_new_null()) == NULL)) + { + CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); + CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); + return(0); + } + CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); + + pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock)); + if (pointer == NULL) + { + CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); + return(0); + } + pointer->references = 1; + pointer->data = dynlock_create_callback(__FILE__,__LINE__); + if (pointer->data == NULL) + { + OPENSSL_free(pointer); + CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); + return(0); + } + + CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); + /* First, try to find an existing empty slot */ + i=sk_CRYPTO_dynlock_find(dyn_locks,NULL); + /* If there was none, push, thereby creating a new one */ + if (i == -1) + /* Since sk_push() returns the number of items on the + stack, not the location of the pushed item, we need + to transform the returned number into a position, + by decreasing it. */ + i=sk_CRYPTO_dynlock_push(dyn_locks,pointer) - 1; + else + /* If we found a place with a NULL pointer, put our pointer + in it. */ + (void)sk_CRYPTO_dynlock_set(dyn_locks,i,pointer); + CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); + + if (i == -1) + { + dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); + OPENSSL_free(pointer); + } + else + i += 1; /* to avoid 0 */ + return -i; + } + +void CRYPTO_destroy_dynlockid(int i) + { + CRYPTO_dynlock *pointer = NULL; + if (i) + i = -i-1; + if (dynlock_destroy_callback == NULL) + return; + + CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); + + if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) + { + CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); + return; + } + pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); + if (pointer != NULL) + { + --pointer->references; +#ifdef REF_CHECK + if (pointer->references < 0) + { + fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n"); + abort(); + } + else +#endif + if (pointer->references <= 0) + { + (void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL); + } + else + pointer = NULL; + } + CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); + + if (pointer) + { + dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); + OPENSSL_free(pointer); + } + } + +struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i) + { + CRYPTO_dynlock *pointer = NULL; + if (i) + i = -i-1; + + CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); + + if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks)) + pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); + if (pointer) + pointer->references++; + + CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); + + if (pointer) + return pointer->data; + return NULL; + } + +struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void)) + (const char *file,int line) + { + return(dynlock_create_callback); + } + +void (*CRYPTO_get_dynlock_lock_callback(void))(int mode, + struct CRYPTO_dynlock_value *l, const char *file,int line) + { + return(dynlock_lock_callback); + } + +void (*CRYPTO_get_dynlock_destroy_callback(void)) + (struct CRYPTO_dynlock_value *l, const char *file,int line) + { + return(dynlock_destroy_callback); + } + +void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func) + (const char *file, int line)) + { + dynlock_create_callback=func; + } + +void CRYPTO_set_dynlock_lock_callback(void (*func)(int mode, + struct CRYPTO_dynlock_value *l, const char *file, int line)) + { + dynlock_lock_callback=func; + } + +void CRYPTO_set_dynlock_destroy_callback(void (*func) + (struct CRYPTO_dynlock_value *l, const char *file, int line)) + { + dynlock_destroy_callback=func; + } + + +void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file, + int line) + { + return(locking_callback); + } + +int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type, + const char *file,int line) + { + return(add_lock_callback); + } + +void CRYPTO_set_locking_callback(void (*func)(int mode,int type, + const char *file,int line)) + { + locking_callback=func; + } + +void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type, + const char *file,int line)) + { + add_lock_callback=func; + } + +void CRYPTO_lock(int mode, int type, const char *file, int line) + { +#ifdef LOCK_DEBUG + { + CRYPTO_THREADID id; + char *rw_text,*operation_text; + + if (mode & CRYPTO_LOCK) + operation_text="lock "; + else if (mode & CRYPTO_UNLOCK) + operation_text="unlock"; + else + operation_text="ERROR "; + + if (mode & CRYPTO_READ) + rw_text="r"; + else if (mode & CRYPTO_WRITE) + rw_text="w"; + else + rw_text="ERROR"; + + CRYPTO_THREADID_current(&id); + fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n", + CRYPTO_THREADID_hash(&id), rw_text, operation_text, + CRYPTO_get_lock_name(type), file, line); + } +#endif + if (type < 0) + { + if (dynlock_lock_callback != NULL) + { + struct CRYPTO_dynlock_value *pointer + = CRYPTO_get_dynlock_value(type); + + OPENSSL_assert(pointer != NULL); + + dynlock_lock_callback(mode, pointer, file, line); + + CRYPTO_destroy_dynlockid(type); + } + } + else + if (locking_callback != NULL) + locking_callback(mode,type,file,line); + } + +int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file, + int line) + { + int ret = 0; + + if (add_lock_callback != NULL) + { +#ifdef LOCK_DEBUG + int before= *pointer; +#endif + + ret=add_lock_callback(pointer,amount,type,file,line); +#ifdef LOCK_DEBUG + { + CRYPTO_THREADID id; + CRYPTO_THREADID_current(&id); + fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", + CRYPTO_THREADID_hash(&id), before,amount,ret, + CRYPTO_get_lock_name(type), + file,line); + } +#endif + } + else + { + CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line); + + ret= *pointer+amount; +#ifdef LOCK_DEBUG + { + CRYPTO_THREADID id; + CRYPTO_THREADID_current(&id); + fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", + CRYPTO_THREADID_hash(&id), + *pointer,amount,ret, + CRYPTO_get_lock_name(type), + file,line); |