Move locking and thread ID functions into new files lock.c and thr_id.c,
[openssl.git] / crypto / cryptlib.c
index 3614e3fc5d14da87333c3aec4af354dd3a8ecb95..d52caa49efc5241d8198dd5519857cc13a1ea262 100644 (file)
@@ -1,4 +1,57 @@
 /* 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.
  *
  * 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 <stdio.h>
-#include <string.h>
 #include "cryptlib.h"
-#include "crypto.h"
-#include "date.h"
+#include <openssl/safestack.h>
 
-#if defined(WIN32) || defined(WIN16)
+#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
 static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */
 #endif
 
-/* real #defines in crypto.h, keep these upto date */
-static char* lock_names[CRYPTO_NUM_LOCKS] =
-       {
-       "<<ERROR>>",
-       "err",
-       "err_hash",
-       "x509",
-       "x509_info",
-       "x509_pkey",
-       "x509_crl",
-       "x509_req",
-       "dsa",
-       "rsa",
-       "evp_pkey",
-       "x509_store",
-       "ssl_ctx",
-       "ssl_cert",
-       "ssl_session",
-       "ssl",
-       "rand",
-       "debug_malloc",
-       "BIO",
-       "bio_gethostbyname",
-       "RSA_blinding",
-       };
-
-static STACK *app_locks=NULL;
-
-#ifndef NOPROTO
-static void (MS_FAR *locking_callback)(int mode,int type,
-       char *file,int line)=NULL;
-static int (MS_FAR *add_lock_callback)(int *pointer,int amount,
-       int type,char *file,int line)=NULL;
-static unsigned long (MS_FAR *id_callback)(void)=NULL;
-#else
-static void (MS_FAR *locking_callback)()=NULL;
-static int (MS_FAR *add_lock_callback)()=NULL;
-static unsigned long (MS_FAR *id_callback)()=NULL;
-#endif
-
-int CRYPTO_get_new_lockid(name)
-char *name;
-       {
-       char *str;
-       int i;
-
-       /* A hack to make Visual C++ 5.0 work correctly when linking as
-        * a DLL using /MT. Without this, the application cannot use
-        * and floating point printf's.
-        * It also seems to be needed for Visual C 1.5 (win16) */
-#if defined(WIN32) || defined(WIN16)
-       SSLeay_MSVC5_hack=(double)name[0]*(double)name[1];
-#endif
-
-       if ((app_locks == NULL) && ((app_locks=sk_new_null()) == NULL))
-               {
-               CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
-               return(0);
-               }
-       if ((str=BUF_strdup(name)) == NULL)
-               return(0);
-       i=sk_push(app_locks,str);
-       if (!i)
-               Free(str);
-       else
-               i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */
-       return(i);
-       }
-
-void (*CRYPTO_get_locking_callback(P_V))(P_I_I_P_I)
-       {
-       return(locking_callback);
-       }
-
-int (*CRYPTO_get_add_lock_callback(P_V))(P_IP_I_I_P_I)
-       {
-       return(add_lock_callback);
-       }
-
-void CRYPTO_set_locking_callback(func)
-void (*func)(P_I_I_P_I);
-       {
-       locking_callback=func;
-       }
+#if    defined(__i386)   || defined(__i386__)   || defined(_M_IX86) || \
+       defined(__INTEL__) || \
+       defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
 
-void CRYPTO_set_add_lock_callback(func)
-int (*func)(P_IP_I_I_P_I);
-       {
-       add_lock_callback=func;
-       }
+unsigned int  OPENSSL_ia32cap_P[2];
+unsigned int *OPENSSL_ia32cap_loc(void) { return OPENSSL_ia32cap_P; }
 
-unsigned long (*CRYPTO_get_id_callback(P_V))(P_V)
-       {
-       return(id_callback);
-       }
-
-void CRYPTO_set_id_callback(func)
-unsigned long (*func)(P_V);
-       {
-       id_callback=func;
-       }
-
-unsigned long CRYPTO_thread_id()
-       {
-       unsigned long ret=0;
-
-       if (id_callback == NULL)
-               {
-#ifdef WIN16
-               ret=(unsigned long)GetCurrentTask();
-#elif defined(WIN32)
-               ret=(unsigned long)GetCurrentThreadId();
-#elif defined(MSDOS)
-               ret=1L;
+#if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
+#define OPENSSL_CPUID_SETUP
+#if defined(_WIN32)
+typedef unsigned __int64 IA32CAP;
 #else
-               ret=(unsigned long)getpid();
+typedef unsigned long long IA32CAP;
 #endif
-               }
-       else
-               ret=id_callback();
-       return(ret);
-       }
+void OPENSSL_cpuid_setup(void)
+{ static int trigger=0;
+  IA32CAP OPENSSL_ia32_cpuid(void);
+  IA32CAP vec;
+  char *env;
 
-void CRYPTO_lock(mode,type,file,line)
-int mode;
-int type;
-char *file;
-int line;
-       {
-#ifdef LOCK_DEBUG
-               {
-               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";
-
-               fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n",
-                       CRYPTO_thread_id(), rw_text, operation_text,
-                       CRYPTO_get_lock_name(type), file, line);
-               }
-#endif
-       if (locking_callback != NULL)
-               locking_callback(mode,type,file,line);
-       }
+    if (trigger)       return;
 
-int CRYPTO_add_lock(pointer,amount,type,file,line)
-int *pointer;
-int amount;
-int type;
-char *file;
-int line;
-       {
-       int ret;
+    trigger=1;
+    if ((env=getenv("OPENSSL_ia32cap")))
+#if defined(_WIN32)
+    {  if (!sscanf(env,"%I64i",&vec)) vec = strtoul(env,NULL,0);   }
+#else
+       vec = strtoull(env,NULL,0);
+#endif
+    else
+       vec = OPENSSL_ia32_cpuid();
 
-       if (add_lock_callback != NULL)
-               {
-#ifdef LOCK_DEBUG
-               int before= *pointer;
+    /*
+     * |(1<<10) sets a reserved bit to signal that variable
+     * was initialized already... This is to avoid interference
+     * with cpuid snippets in ELF .init segment.
+     */
+    OPENSSL_ia32cap_P[0] = (unsigned int)vec|(1<<10);
+    OPENSSL_ia32cap_P[1] = (unsigned int)(vec>>32);
+}
 #endif
 
-               ret=add_lock_callback(pointer,amount,type,file,line);
-#ifdef LOCK_DEBUG
-               fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
-                       CRYPTO_thread_id(),
-                       before,amount,ret,
-                       CRYPTO_get_lock_name(type),
-                       file,line);
+#else
+unsigned int *OPENSSL_ia32cap_loc(void) { return NULL; }
 #endif
-               *pointer=ret;
-               }
-       else
-               {
-               CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line);
-
-               ret= *pointer+amount;
-#ifdef LOCK_DEBUG
-               fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
-                       CRYPTO_thread_id(),
-                       *pointer,amount,ret,
-                       CRYPTO_get_lock_name(type),
-                       file,line);
+int OPENSSL_NONPIC_relocated = 0;
+#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
+void OPENSSL_cpuid_setup(void) {}
 #endif
-               *pointer=ret;
-               CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line);
-               }
-       return(ret);
-       }
-
-char *CRYPTO_get_lock_name(type)
-int type;
-       {
-       if (type < 0)
-               return("ERROR");
-       else if (type < CRYPTO_NUM_LOCKS)
-               return(lock_names[type]);
-       else if (type-CRYPTO_NUM_LOCKS >= sk_num(app_locks))
-               return("ERROR");
-       else
-               return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS));
-       }
 
-#ifdef _DLL
-#ifdef WIN32
+#if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
+#ifdef __CYGWIN__
+/* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
+#include <windows.h>
+/* this has side-effect of _WIN32 getting defined, which otherwise
+ * is mutually exclusive with __CYGWIN__... */
+#endif
 
 /* All we really need to do is remove the 'error' state when a thread
  * detaches */
 
-BOOL WINAPI DLLEntryPoint(hinstDLL,fdwReason,lpvReserved)
-HINSTANCE hinstDLL;
-DWORD fdwReason;
-LPVOID lpvReserved;
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
+            LPVOID lpvReserved)
        {
        switch(fdwReason)
                {
        case DLL_PROCESS_ATTACH:
+               OPENSSL_cpuid_setup();
+#if defined(_WIN32_WINNT)
+               {
+               IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL;
+               IMAGE_NT_HEADERS *nt_headers;
+
+               if (dos_header->e_magic==IMAGE_DOS_SIGNATURE)
+                       {
+                       nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header
+                                               + dos_header->e_lfanew);
+                       if (nt_headers->Signature==IMAGE_NT_SIGNATURE &&
+                           hinstDLL!=(HINSTANCE)(nt_headers->OptionalHeader.ImageBase))
+                               OPENSSL_NONPIC_relocated=1;
+                       }
+               }
+#endif
                break;
        case DLL_THREAD_ATTACH:
                break;
@@ -305,4 +217,160 @@ LPVOID lpvReserved;
        }
 #endif
 
+#if defined(_WIN32) && !defined(__CYGWIN__)
+#include <tchar.h>
+#include <signal.h>
+#ifdef __WATCOMC__
+#if defined(_UNICODE) || defined(__UNICODE__)
+#define _vsntprintf _vsnwprintf
+#else
+#define _vsntprintf _vsnprintf
+#endif
 #endif
+#ifdef _MSC_VER
+#define alloca _alloca
+#endif
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
+int OPENSSL_isservice(void)
+{ HWINSTA h;
+  DWORD len;
+  WCHAR *name;
+  static union { void *p; int (*f)(void); } _OPENSSL_isservice = { NULL };
+
+    if (_OPENSSL_isservice.p == NULL) {
+       HANDLE h = GetModuleHandle(NULL);
+       if (h != NULL)
+           _OPENSSL_isservice.p = GetProcAddress(h,"_OPENSSL_isservice");
+       if (_OPENSSL_isservice.p == NULL)
+           _OPENSSL_isservice.p = (void *)-1;
+    }
+
+    if (_OPENSSL_isservice.p != (void *)-1)
+       return (*_OPENSSL_isservice.f)();
+
+    (void)GetDesktopWindow(); /* return value is ignored */
+
+    h = GetProcessWindowStation();
+    if (h==NULL) return -1;
+
+    if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) ||
+       GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+       return -1;
+
+    if (len>512) return -1;            /* paranoia */
+    len++,len&=~1;                     /* paranoia */
+    name=(WCHAR *)alloca(len+sizeof(WCHAR));
+    if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len))
+       return -1;
+
+    len++,len&=~1;                     /* paranoia */
+    name[len/sizeof(WCHAR)]=L'\0';     /* paranoia */
+#if 1
+    /* This doesn't cover "interactive" services [working with real
+     * WinSta0's] nor programs started non-interactively by Task
+     * Scheduler [those are working with SAWinSta]. */
+    if (wcsstr(name,L"Service-0x"))    return 1;
+#else
+    /* This covers all non-interactive programs such as services. */
+    if (!wcsstr(name,L"WinSta0"))      return 1;
+#endif
+    else                               return 0;
+}
+#else
+int OPENSSL_isservice(void) { return 0; }
+#endif
+
+void OPENSSL_showfatal (const char *fmta,...)
+{ va_list ap;
+  TCHAR buf[256];
+  const TCHAR *fmt;
+#ifdef STD_ERROR_HANDLE        /* what a dirty trick! */
+  HANDLE h;
+
+    if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
+       GetFileType(h)!=FILE_TYPE_UNKNOWN)
+    {  /* must be console application */
+       va_start (ap,fmta);
+       vfprintf (stderr,fmta,ap);
+       va_end (ap);
+       return;
+    }
+#endif
+
+    if (sizeof(TCHAR)==sizeof(char))
+       fmt=(const TCHAR *)fmta;
+    else do
+    { int    keepgoing;
+      size_t len_0=strlen(fmta)+1,i;
+      WCHAR *fmtw;
+
+       fmtw = (WCHAR *)alloca(len_0*sizeof(WCHAR));
+       if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; }
+
+#ifndef OPENSSL_NO_MULTIBYTE
+       if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0))
+#endif
+           for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i];
+
+       for (i=0;i<len_0;i++)
+       {   if (fmtw[i]==L'%') do
+           {   keepgoing=0;
+               switch (fmtw[i+1])
+               {   case L'0': case L'1': case L'2': case L'3': case L'4':
+                   case L'5': case L'6': case L'7': case L'8': case L'9':
+                   case L'.': case L'*':
+                   case L'-':  i++; keepgoing=1; break;
+                   case L's':  fmtw[i+1]=L'S';   break;
+                   case L'S':  fmtw[i+1]=L's';   break;
+                   case L'c':  fmtw[i+1]=L'C';   break;
+                   case L'C':  fmtw[i+1]=L'c';   break;
+               }
+           } while (keepgoing);
+       }
+       fmt = (const TCHAR *)fmtw;
+    } while (0);
+
+    va_start (ap,fmta);
+    _vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap);
+    buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0');
+    va_end (ap);
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
+    /* this -------------v--- guards NT-specific calls */
+    if (GetVersion() < 0x80000000 && OPENSSL_isservice() > 0)
+    {  HANDLE h = RegisterEventSource(0,_T("OPENSSL"));
+       const TCHAR *pmsg=buf;
+       ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0);
+       DeregisterEventSource(h);
+    }
+    else
+#endif
+       MessageBox (NULL,buf,_T("OpenSSL: FATAL"),MB_OK|MB_ICONSTOP);
+}
+#else
+void OPENSSL_showfatal (const char *fmta,...)
+{ va_list ap;
+
+    va_start (ap,fmta);
+    vfprintf (stderr,fmta,ap);
+    va_end (ap);
+}
+int OPENSSL_isservice (void) { return 0; }
+#endif
+
+void OpenSSLDie(const char *file,int line,const char *assertion)
+       {
+       OPENSSL_showfatal(
+               "%s(%d): OpenSSL internal error, assertion failed: %s\n",
+               file,line,assertion);
+#if !defined(_WIN32) || defined(__CYGWIN__)
+       abort();
+#else
+       /* Win32 abort() customarily shows a dialog, but we just did that... */
+       raise(SIGABRT);
+       _exit(3);
+#endif
+       }
+
+void *OPENSSL_stderr(void)     { return stderr; }