1 /* crypto/cryptlib.c */
2 /* ====================================================================
3 * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
55 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
56 * All rights reserved.
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.
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).
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.
76 * Redistribution and use in source and binary forms, with or without
77 * modification, are permitted provided that the following conditions
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)"
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
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.]
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.
117 #include "cryptlib.h"
118 #include <openssl/safestack.h>
120 #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
121 static double SSLeay_MSVC5_hack
=0.0; /* and for VC1.5 */
124 DECLARE_STACK_OF(CRYPTO_dynlock
)
125 IMPLEMENT_STACK_OF(CRYPTO_dynlock
)
127 /* real #defines in crypto.h, keep these upto date */
128 static const char* lock_names
[CRYPTO_NUM_LOCKS
] =
169 #if CRYPTO_NUM_LOCKS != 39
170 # error "Inconsistency between crypto.h and cryptlib.c"
174 /* This is for applications to allocate new type names in the non-dynamic
175 array of lock names. These are numbered with positive numbers. */
176 static STACK
*app_locks
=NULL
;
178 /* For applications that want a more dynamic way of handling threads, the
179 following stack is used. These are externally numbered with negative
181 static STACK_OF(CRYPTO_dynlock
) *dyn_locks
=NULL
;
184 static void (MS_FAR
*locking_callback
)(int mode
,int type
,
185 const char *file
,int line
)=NULL
;
186 static int (MS_FAR
*add_lock_callback
)(int *pointer
,int amount
,
187 int type
,const char *file
,int line
)=NULL
;
188 static unsigned long (MS_FAR
*id_callback
)(void)=NULL
;
189 static struct CRYPTO_dynlock_value
*(MS_FAR
*dynlock_create_callback
)
190 (const char *file
,int line
)=NULL
;
191 static void (MS_FAR
*dynlock_lock_callback
)(int mode
,
192 struct CRYPTO_dynlock_value
*l
, const char *file
,int line
)=NULL
;
193 static void (MS_FAR
*dynlock_destroy_callback
)(struct CRYPTO_dynlock_value
*l
,
194 const char *file
,int line
)=NULL
;
196 int CRYPTO_get_new_lockid(char *name
)
201 #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
202 /* A hack to make Visual C++ 5.0 work correctly when linking as
203 * a DLL using /MT. Without this, the application cannot use
204 * and floating point printf's.
205 * It also seems to be needed for Visual C 1.5 (win16) */
206 SSLeay_MSVC5_hack
=(double)name
[0]*(double)name
[1];
209 if ((app_locks
== NULL
) && ((app_locks
=sk_new_null()) == NULL
))
211 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID
,ERR_R_MALLOC_FAILURE
);
214 if ((str
=BUF_strdup(name
)) == NULL
)
216 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID
,ERR_R_MALLOC_FAILURE
);
219 i
=sk_push(app_locks
,str
);
223 i
+=CRYPTO_NUM_LOCKS
; /* gap of one :-) */
227 int CRYPTO_num_locks(void)
229 return CRYPTO_NUM_LOCKS
;
232 int CRYPTO_get_new_dynlockid(void)
235 CRYPTO_dynlock
*pointer
= NULL
;
237 if (dynlock_create_callback
== NULL
)
239 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID
,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK
);
242 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK
);
243 if ((dyn_locks
== NULL
)
244 && ((dyn_locks
=sk_CRYPTO_dynlock_new_null()) == NULL
))
246 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK
);
247 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID
,ERR_R_MALLOC_FAILURE
);
250 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK
);
252 pointer
= (CRYPTO_dynlock
*)OPENSSL_malloc(sizeof(CRYPTO_dynlock
));
255 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID
,ERR_R_MALLOC_FAILURE
);
258 pointer
->references
= 1;
259 pointer
->data
= dynlock_create_callback(__FILE__
,__LINE__
);
260 if (pointer
->data
== NULL
)
262 OPENSSL_free(pointer
);
263 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID
,ERR_R_MALLOC_FAILURE
);
267 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK
);
268 /* First, try to find an existing empty slot */
269 i
=sk_CRYPTO_dynlock_find(dyn_locks
,NULL
);
270 /* If there was none, push, thereby creating a new one */
272 /* Since sk_push() returns the number of items on the
273 stack, not the location of the pushed item, we need
274 to transform the returned number into a position,
276 i
=sk_CRYPTO_dynlock_push(dyn_locks
,pointer
) - 1;
278 /* If we found a place with a NULL pointer, put our pointer
280 sk_CRYPTO_dynlock_set(dyn_locks
,i
,pointer
);
281 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK
);
285 dynlock_destroy_callback(pointer
->data
,__FILE__
,__LINE__
);
286 OPENSSL_free(pointer
);
289 i
+= 1; /* to avoid 0 */
293 void CRYPTO_destroy_dynlockid(int i
)
295 CRYPTO_dynlock
*pointer
= NULL
;
298 if (dynlock_destroy_callback
== NULL
)
301 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK
);
303 if (dyn_locks
== NULL
|| i
>= sk_CRYPTO_dynlock_num(dyn_locks
))
305 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK
);
308 pointer
= sk_CRYPTO_dynlock_value(dyn_locks
, i
);
311 --pointer
->references
;
313 if (pointer
->references
< 0)
315 fprintf(stderr
,"CRYPTO_destroy_dynlockid, bad reference count\n");
320 if (pointer
->references
<= 0)
322 sk_CRYPTO_dynlock_set(dyn_locks
, i
, NULL
);
327 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK
);
331 dynlock_destroy_callback(pointer
->data
,__FILE__
,__LINE__
);
332 OPENSSL_free(pointer
);
336 struct CRYPTO_dynlock_value
*CRYPTO_get_dynlock_value(int i
)
338 CRYPTO_dynlock
*pointer
= NULL
;
342 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK
);
344 if (dyn_locks
!= NULL
&& i
< sk_CRYPTO_dynlock_num(dyn_locks
))
345 pointer
= sk_CRYPTO_dynlock_value(dyn_locks
, i
);
347 pointer
->references
++;
349 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK
);
352 return pointer
->data
;
356 struct CRYPTO_dynlock_value
*(*CRYPTO_get_dynlock_create_callback(void))
357 (const char *file
,int line
)
359 return(dynlock_create_callback
);
362 void (*CRYPTO_get_dynlock_lock_callback(void))(int mode
,
363 struct CRYPTO_dynlock_value
*l
, const char *file
,int line
)
365 return(dynlock_lock_callback
);
368 void (*CRYPTO_get_dynlock_destroy_callback(void))
369 (struct CRYPTO_dynlock_value
*l
, const char *file
,int line
)
371 return(dynlock_destroy_callback
);
374 void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value
*(*func
)
375 (const char *file
, int line
))
377 dynlock_create_callback
=func
;
380 void CRYPTO_set_dynlock_lock_callback(void (*func
)(int mode
,
381 struct CRYPTO_dynlock_value
*l
, const char *file
, int line
))
383 dynlock_lock_callback
=func
;
386 void CRYPTO_set_dynlock_destroy_callback(void (*func
)
387 (struct CRYPTO_dynlock_value
*l
, const char *file
, int line
))
389 dynlock_destroy_callback
=func
;
393 void (*CRYPTO_get_locking_callback(void))(int mode
,int type
,const char *file
,
396 return(locking_callback
);
399 int (*CRYPTO_get_add_lock_callback(void))(int *num
,int mount
,int type
,
400 const char *file
,int line
)
402 return(add_lock_callback
);
405 void CRYPTO_set_locking_callback(void (*func
)(int mode
,int type
,
406 const char *file
,int line
))
408 locking_callback
=func
;
411 void CRYPTO_set_add_lock_callback(int (*func
)(int *num
,int mount
,int type
,
412 const char *file
,int line
))
414 add_lock_callback
=func
;
417 unsigned long (*CRYPTO_get_id_callback(void))(void)
422 void CRYPTO_set_id_callback(unsigned long (*func
)(void))
427 unsigned long CRYPTO_thread_id(void)
431 if (id_callback
== NULL
)
433 #ifdef OPENSSL_SYS_WIN16
434 ret
=(unsigned long)GetCurrentTask();
435 #elif defined(OPENSSL_SYS_WIN32)
436 ret
=(unsigned long)GetCurrentThreadId();
437 #elif defined(GETPID_IS_MEANINGLESS)
440 ret
=(unsigned long)getpid();
448 void CRYPTO_lock(int mode
, int type
, const char *file
, int line
)
452 char *rw_text
,*operation_text
;
454 if (mode
& CRYPTO_LOCK
)
455 operation_text
="lock ";
456 else if (mode
& CRYPTO_UNLOCK
)
457 operation_text
="unlock";
459 operation_text
="ERROR ";
461 if (mode
& CRYPTO_READ
)
463 else if (mode
& CRYPTO_WRITE
)
468 fprintf(stderr
,"lock:%08lx:(%s)%s %-18s %s:%d\n",
469 CRYPTO_thread_id(), rw_text
, operation_text
,
470 CRYPTO_get_lock_name(type
), file
, line
);
475 if (dynlock_lock_callback
!= NULL
)
477 struct CRYPTO_dynlock_value
*pointer
478 = CRYPTO_get_dynlock_value(type
);
480 OPENSSL_assert(pointer
!= NULL
);
482 dynlock_lock_callback(mode
, pointer
, file
, line
);
484 CRYPTO_destroy_dynlockid(type
);
488 if (locking_callback
!= NULL
)
489 locking_callback(mode
,type
,file
,line
);
492 int CRYPTO_add_lock(int *pointer
, int amount
, int type
, const char *file
,
497 if (add_lock_callback
!= NULL
)
500 int before
= *pointer
;
503 ret
=add_lock_callback(pointer
,amount
,type
,file
,line
);
505 fprintf(stderr
,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
508 CRYPTO_get_lock_name(type
),
514 CRYPTO_lock(CRYPTO_LOCK
|CRYPTO_WRITE
,type
,file
,line
);
516 ret
= *pointer
+amount
;
518 fprintf(stderr
,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
521 CRYPTO_get_lock_name(type
),
525 CRYPTO_lock(CRYPTO_UNLOCK
|CRYPTO_WRITE
,type
,file
,line
);
530 const char *CRYPTO_get_lock_name(int type
)
534 else if (type
< CRYPTO_NUM_LOCKS
)
535 return(lock_names
[type
]);
536 else if (type
-CRYPTO_NUM_LOCKS
> sk_num(app_locks
))
539 return(sk_value(app_locks
,type
-CRYPTO_NUM_LOCKS
));
542 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
543 defined(__INTEL__) || \
544 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64)
546 unsigned long OPENSSL_ia32cap_P
=0;
547 unsigned long *OPENSSL_ia32cap_loc(void) { return &OPENSSL_ia32cap_P
; }
549 #if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
550 #define OPENSSL_CPUID_SETUP
551 void OPENSSL_cpuid_setup(void)
552 { static int trigger
=0;
553 unsigned long OPENSSL_ia32_cpuid(void);
559 if ((env
=getenv("OPENSSL_ia32cap")))
560 OPENSSL_ia32cap_P
= strtoul(env
,NULL
,0)|(1<<10);
562 OPENSSL_ia32cap_P
= OPENSSL_ia32_cpuid()|(1<<10);
564 * |(1<<10) sets a reserved bit to signal that variable
565 * was initialized already... This is to avoid interference
566 * with cpuid snippets in ELF .init segment.
572 #if !defined(OPENSSL_CPUID_SETUP)
573 void OPENSSL_cpuid_setup(void) {}
576 #if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
578 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
582 /* All we really need to do is remove the 'error' state when a thread
585 BOOL WINAPI
DllMain(HINSTANCE hinstDLL
, DWORD fdwReason
,
590 case DLL_PROCESS_ATTACH
:
591 OPENSSL_cpuid_setup();
593 case DLL_THREAD_ATTACH
:
595 case DLL_THREAD_DETACH
:
598 case DLL_PROCESS_DETACH
:
608 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
609 static int IsService(void)
614 (void)GetDesktopWindow(); /* return value is ignored */
616 h
= GetProcessWindowStation();
617 if (h
==NULL
) return -1;
619 if (GetUserObjectInformationW (h
,UOI_NAME
,NULL
,0,&len
) ||
620 GetLastError() != ERROR_INSUFFICIENT_BUFFER
)
623 if (len
>512) return -1; /* paranoia */
624 len
++,len
&=~1; /* paranoia */
626 name
=(WCHAR
*)_alloca(len
+sizeof(WCHAR
));
628 name
=(WCHAR
*)alloca(len
+sizeof(WCHAR
));
630 if (!GetUserObjectInformationW (h
,UOI_NAME
,name
,len
,&len
))
633 len
++,len
&=~1; /* paranoia */
634 name
[len
/sizeof(WCHAR
)]=L
'\0'; /* paranoia */
636 /* This doesn't cover "interactive" services [working with real
637 * WinSta0's] nor programs started non-interactively by Task
638 * Scheduler [those are working with SAWinSta]. */
639 if (wcsstr(name
,L
"Service-0x")) return 1;
641 /* This covers all non-interactive programs such as services. */
642 if (!wcsstr(name
,L
"WinSta0")) return 1;
648 void OPENSSL_showfatal (char *fmta
,...)
653 if ((h
=GetStdHandle(STD_ERROR_HANDLE
)) != NULL
&&
654 GetFileType(h
)!=FILE_TYPE_UNKNOWN
)
655 { /* must be console application */
657 vfprintf (stderr
,fmta
,ap
);
662 if (sizeof(TCHAR
)==sizeof(char))
666 size_t len_0
=strlen(fmta
)+1,i
;
670 fmtw
= (WCHAR
*)_alloca (len_0
*sizeof(WCHAR
));
672 fmtw
= (WCHAR
*)alloca (len_0
*sizeof(WCHAR
));
674 if (fmtw
== NULL
) { fmt
=(TCHAR
*)L
"no stack?"; break; }
676 #ifndef OPENSSL_NO_MULTIBYTE
677 if (!MultiByteToWideChar(CP_ACP
,0,fmta
,len_0
,fmtw
,len_0
))
679 for (i
=0;i
<len_0
;i
++) fmtw
[i
]=(WCHAR
)fmta
[i
];
681 for (i
=0;i
<len_0
;i
++)
682 { if (fmtw
[i
]==L
'%') do
685 { case L
'0': case L
'1': case L
'2': case L
'3': case L
'4':
686 case L
'5': case L
'6': case L
'7': case L
'8': case L
'9':
687 case L
'.': case L
'*':
688 case L
'-': i
++; keepgoing
=1; break;
689 case L
's': fmtw
[i
+1]=L
'S'; break;
690 case L
'S': fmtw
[i
+1]=L
's'; break;
691 case L
'c': fmtw
[i
+1]=L
'C'; break;
692 case L
'C': fmtw
[i
+1]=L
'c'; break;
700 _vsntprintf (buf
,sizeof(buf
)/sizeof(TCHAR
)-1,fmt
,ap
);
701 buf
[sizeof(buf
)/sizeof(TCHAR
)-1] = _T('\0');
704 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
705 /* this -------------v--- guards NT-specific calls */
706 if (GetVersion() < 0x80000000 && IsService())
707 { HANDLE h
= RegisterEventSource(0,_T("OPENSSL"));
708 const TCHAR
*pmsg
=buf
;
709 ReportEvent(h
,EVENTLOG_ERROR_TYPE
,0,0,0,1,0,&pmsg
,0);
710 DeregisterEventSource(h
);
716 m
.cbSize
= sizeof(m
);
718 m
.lpszCaption
= _T("OpenSSL: FATAL");
721 m
.lpszIcon
= IDI_ERROR
;
722 m
.dwContextHelpId
= 0;
723 m
.lpfnMsgBoxCallback
= NULL
;
724 m
.dwLanguageId
= MAKELANGID(LANG_ENGLISH
,SUBLANG_ENGLISH_US
);
727 MessageBoxIndirect (&m
);
731 void OPENSSL_showfatal (char *fmta
,...)
735 vfprintf (stderr
,fmta
,ap
);
740 void OpenSSLDie(const char *file
,int line
,const char *assertion
)
743 "%s(%d): OpenSSL internal error, assertion failed: %s\n",
744 file
,line
,assertion
);