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 static void (MS_FAR *locking_callback)(int mode,int type,
125 const char *file,int line)=NULL;
126 static int (MS_FAR *add_lock_callback)(int *pointer,int amount,
127 int type,const char *file,int line)=NULL;
128 static unsigned long (MS_FAR *id_callback)(void)=NULL;
130 int CRYPTO_num_locks(void)
132 return CRYPTO_NUM_LOCKS;
135 void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file,
138 return(locking_callback);
141 int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type,
142 const char *file,int line)
144 return(add_lock_callback);
147 void CRYPTO_set_locking_callback(void (*func)(int mode,int type,
148 const char *file,int line))
150 locking_callback=func;
153 void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type,
154 const char *file,int line))
156 add_lock_callback=func;
159 unsigned long (*CRYPTO_get_id_callback(void))(void)
164 void CRYPTO_set_id_callback(unsigned long (*func)(void))
169 unsigned long CRYPTO_thread_id(void)
173 if (id_callback == NULL)
175 #ifdef OPENSSL_SYS_WIN16
176 ret=(unsigned long)GetCurrentTask();
177 #elif defined(OPENSSL_SYS_WIN32)
178 ret=(unsigned long)GetCurrentThreadId();
179 #elif defined(GETPID_IS_MEANINGLESS)
182 ret=(unsigned long)getpid();
190 static void (*do_dynlock_cb)(int mode, int type, const char *file, int line);
192 void int_CRYPTO_set_do_dynlock_callback(
193 void (*dyn_cb)(int mode, int type, const char *file, int line))
195 do_dynlock_cb = dyn_cb;
198 void CRYPTO_lock(int mode, int type, const char *file, int line)
202 char *rw_text,*operation_text;
204 if (mode & CRYPTO_LOCK)
205 operation_text="lock ";
206 else if (mode & CRYPTO_UNLOCK)
207 operation_text="unlock";
209 operation_text="ERROR ";
211 if (mode & CRYPTO_READ)
213 else if (mode & CRYPTO_WRITE)
218 fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n",
219 CRYPTO_thread_id(), rw_text, operation_text,
220 CRYPTO_get_lock_name(type), file, line);
226 do_dynlock_cb(mode, type, file, line);
229 if (locking_callback != NULL)
230 locking_callback(mode,type,file,line);
233 int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
238 if (add_lock_callback != NULL)
241 int before= *pointer;
244 ret=add_lock_callback(pointer,amount,type,file,line);
246 fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
249 CRYPTO_get_lock_name(type),
255 CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line);
257 ret= *pointer+amount;
259 fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
262 CRYPTO_get_lock_name(type),
266 CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line);
271 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
272 defined(__INTEL__) || \
273 defined(__x86_64) || defined(__x86_64__) || \
274 defined(_M_AMD64) || defined(_M_X64)
276 unsigned long OPENSSL_ia32cap_P=0;
277 unsigned long *OPENSSL_ia32cap_loc(void) { return &OPENSSL_ia32cap_P; }
279 #if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
280 #define OPENSSL_CPUID_SETUP
281 void OPENSSL_cpuid_setup(void)
282 { static int trigger=0;
283 unsigned long OPENSSL_ia32_cpuid(void);
289 if ((env=getenv("OPENSSL_ia32cap")))
290 OPENSSL_ia32cap_P = strtoul(env,NULL,0)|(1<<10);
292 OPENSSL_ia32cap_P = OPENSSL_ia32_cpuid()|(1<<10);
294 * |(1<<10) sets a reserved bit to signal that variable
295 * was initialized already... This is to avoid interference
296 * with cpuid snippets in ELF .init segment.
302 unsigned long *OPENSSL_ia32cap_loc(void) { return NULL; }
304 int OPENSSL_NONPIC_relocated = 0;
305 #if !defined(OPENSSL_CPUID_SETUP)
306 void OPENSSL_cpuid_setup(void) {}
309 #if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
313 #include <tlhelp32.h>
314 #if defined(__GNUC__) && __GNUC__>=2
315 static int DllInit(void) __attribute__((constructor));
316 #elif defined(_MSC_VER)
317 static int DllInit(void);
319 # pragma section(".CRT$XCU",read)
320 __declspec(allocate(".CRT$XCU"))
322 # pragma data_seg(".CRT$XCU")
324 static int (*p)(void) = DllInit;
328 static int DllInit(void)
330 #if defined(_WIN32_WINNT)
331 union { int(*f)(void); BYTE *p; } t = { DllInit };
332 HANDLE hModuleSnap = INVALID_HANDLE_VALUE;
333 IMAGE_DOS_HEADER *dos_header;
334 IMAGE_NT_HEADERS *nt_headers;
335 MODULEENTRY32 me32 = {sizeof(me32)};
337 hModuleSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE,0);
338 if (hModuleSnap != INVALID_HANDLE_VALUE &&
339 Module32First(hModuleSnap,&me32)) do
341 if (t.p >= me32.modBaseAddr &&
342 t.p < me32.modBaseAddr+me32.modBaseSize)
344 dos_header=(IMAGE_DOS_HEADER *)me32.modBaseAddr;
345 if (dos_header->e_magic==IMAGE_DOS_SIGNATURE)
347 nt_headers=(IMAGE_NT_HEADERS *)
348 ((BYTE *)dos_header+dos_header->e_lfanew);
349 if (nt_headers->Signature==IMAGE_NT_SIGNATURE &&
350 me32.modBaseAddr!=(BYTE*)nt_headers->OptionalHeader.ImageBase)
351 OPENSSL_NONPIC_relocated=1;
355 } while (Module32Next(hModuleSnap,&me32));
357 if (hModuleSnap != INVALID_HANDLE_VALUE)
358 CloseHandle(hModuleSnap);
360 OPENSSL_cpuid_setup();
367 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
371 /* All we really need to do is remove the 'error' state when a thread
374 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
379 case DLL_PROCESS_ATTACH:
380 OPENSSL_cpuid_setup();
381 #if defined(_WIN32_WINNT)
383 IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL;
384 IMAGE_NT_HEADERS *nt_headers;
386 if (dos_header->e_magic==IMAGE_DOS_SIGNATURE)
388 nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header
389 + dos_header->e_lfanew);
390 if (nt_headers->Signature==IMAGE_NT_SIGNATURE &&
391 hinstDLL!=(HINSTANCE)(nt_headers->OptionalHeader.ImageBase))
392 OPENSSL_NONPIC_relocated=1;
397 case DLL_THREAD_ATTACH:
399 case DLL_THREAD_DETACH:
401 case DLL_PROCESS_DETACH:
410 #if defined(_WIN32) && !defined(__CYGWIN__)
413 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
414 int OPENSSL_isservice(void)
419 (void)GetDesktopWindow(); /* return value is ignored */
421 h = GetProcessWindowStation();
422 if (h==NULL) return -1;
424 if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) ||
425 GetLastError() != ERROR_INSUFFICIENT_BUFFER)
428 if (len>512) return -1; /* paranoia */
429 len++,len&=~1; /* paranoia */
431 name=(WCHAR *)_alloca(len+sizeof(WCHAR));
433 name=(WCHAR *)alloca(len+sizeof(WCHAR));
435 if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len))
438 len++,len&=~1; /* paranoia */
439 name[len/sizeof(WCHAR)]=L'\0'; /* paranoia */
441 /* This doesn't cover "interactive" services [working with real
442 * WinSta0's] nor programs started non-interactively by Task
443 * Scheduler [those are working with SAWinSta]. */
444 if (wcsstr(name,L"Service-0x")) return 1;
446 /* This covers all non-interactive programs such as services. */
447 if (!wcsstr(name,L"WinSta0")) return 1;
452 int OPENSSL_isservice(void) { return 0; }
455 void OPENSSL_showfatal (const char *fmta,...)
459 #ifdef STD_ERROR_HANDLE /* what a dirty trick! */
462 if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
463 GetFileType(h)!=FILE_TYPE_UNKNOWN)
465 /* must be console application */
467 vfprintf (stderr,fmta,ap);
473 if (sizeof(TCHAR)==sizeof(char))
474 fmt=(const TCHAR *)fmta;
477 size_t len_0=strlen(fmta)+1,i;
481 fmtw = (WCHAR *)_alloca (len_0*sizeof(WCHAR));
483 fmtw = (WCHAR *)alloca (len_0*sizeof(WCHAR));
485 if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; }
487 #ifndef OPENSSL_NO_MULTIBYTE
488 if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0))
490 for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i];
492 for (i=0;i<len_0;i++)
493 { if (fmtw[i]==L'%') do
496 { case L'0': case L'1': case L'2': case L'3': case L'4':
497 case L'5': case L'6': case L'7': case L'8': case L'9':
498 case L'.': case L'*':
499 case L'-': i++; keepgoing=1; break;
500 case L's': fmtw[i+1]=L'S'; break;
501 case L'S': fmtw[i+1]=L's'; break;
502 case L'c': fmtw[i+1]=L'C'; break;
503 case L'C': fmtw[i+1]=L'c'; break;
507 fmt = (const TCHAR *)fmtw;
511 _vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap);
512 buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0');
515 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
516 /* this -------------v--- guards NT-specific calls */
517 if (check_winnt() && OPENSSL_isservice() > 0)
518 { HANDLE h = RegisterEventSource(0,_T("OPENSSL"));
519 const TCHAR *pmsg=buf;
520 ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0);
521 DeregisterEventSource(h);
525 MessageBox (NULL,buf,_T("OpenSSL: FATAL"),MB_OK|MB_ICONSTOP);
528 void OPENSSL_showfatal (const char *fmta,...)
532 vfprintf (stderr,fmta,ap);
535 int OPENSSL_isservice (void) { return 0; }
538 void OpenSSLDie(const char *file,int line,const char *assertion)
541 "%s(%d): OpenSSL internal error, assertion failed: %s\n",
542 file,line,assertion);
546 void *OPENSSL_stderr(void) { return stderr; }
550 int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
553 const unsigned char *a = in_a;
554 const unsigned char *b = in_b;
557 for (i = 0; i < len; i++)