X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=crypto%2Fcryptlib.c;h=0b77d8b7d0e05b73e237d9a64fc43c3bc13bb95a;hb=8437225d341fc3b278a6236cd9ecc0f0c0dfb34e;hp=4a814643f4b649941edb6ed11704401b7e8477e0;hpb=48fc582f66a58e3da6f095ba1b4498c17581e05a;p=openssl.git

diff --git a/crypto/cryptlib.c b/crypto/cryptlib.c
index 4a814643f4..0b77d8b7d0 100644
--- a/crypto/cryptlib.c
+++ b/crypto/cryptlib.c
@@ -122,10 +122,9 @@ static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */
 #endif
 
 DECLARE_STACK_OF(CRYPTO_dynlock)
-IMPLEMENT_STACK_OF(CRYPTO_dynlock)
 
 /* real #defines in crypto.h, keep these upto date */
-static const char* lock_names[CRYPTO_NUM_LOCKS] =
+static const char* const lock_names[CRYPTO_NUM_LOCKS] =
 	{
 	"<<ERROR>>",
 	"err",
@@ -166,14 +165,16 @@ static const char* lock_names[CRYPTO_NUM_LOCKS] =
 	"ec_pre_comp",
 	"store",
 	"comp",
-#if CRYPTO_NUM_LOCKS != 39
+	"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 *app_locks=NULL;
+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
@@ -185,8 +186,10 @@ 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;
-static void *(MS_FAR *idptr_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,
@@ -202,12 +205,12 @@ int CRYPTO_get_new_lockid(char *name)
 #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
-	 * and floating point printf's.
+	 * 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_new_null()) == NULL))
+	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);
@@ -217,7 +220,7 @@ int CRYPTO_get_new_lockid(char *name)
 		CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
 		return(0);
 		}
-	i=sk_push(app_locks,str);
+	i=sk_OPENSSL_STRING_push(app_locks,str);
 	if (!i)
 		OPENSSL_free(str);
 	else
@@ -278,7 +281,7 @@ int CRYPTO_get_new_dynlockid(void)
 	else
 		/* If we found a place with a NULL pointer, put our pointer
 		   in it.  */
-		sk_CRYPTO_dynlock_set(dyn_locks,i,pointer);
+		(void)sk_CRYPTO_dynlock_set(dyn_locks,i,pointer);
 	CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
 
 	if (i == -1)
@@ -320,7 +323,7 @@ void CRYPTO_destroy_dynlockid(int i)
 #endif
 			if (pointer->references <= 0)
 				{
-				sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
+				(void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
 				}
 			else
 				pointer = NULL;
@@ -406,6 +409,10 @@ int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type,
 void CRYPTO_set_locking_callback(void (*func)(int mode,int type,
 					      const char *file,int line))
 	{
+	/* Calling this here ensures initialisation before any threads
+	 * are started.
+	 */
+	OPENSSL_init();
 	locking_callback=func;
 	}
 
@@ -415,6 +422,108 @@ void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type,
 	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, (void*)&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);
@@ -447,33 +556,13 @@ unsigned long CRYPTO_thread_id(void)
 		ret=id_callback();
 	return(ret);
 	}
-
-void *(*CRYPTO_get_idptr_callback(void))(void)
-	{
-	return(idptr_callback);
-	}
-
-void CRYPTO_set_idptr_callback(void *(*func)(void))
-	{
-	idptr_callback=func;
-	}
-
-void *CRYPTO_thread_idptr(void)
-	{
-	void *ret=NULL;
-
-	if (idptr_callback == NULL)
-		ret = &errno;
-	else
-		ret = idptr_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)
@@ -490,8 +579,9 @@ void CRYPTO_lock(int mode, int type, const char *file, int line)
 		else
 			rw_text="ERROR";
 
-		fprintf(stderr,"lock:%08lx/%08p:(%s)%s %-18s %s:%d\n",
-			CRYPTO_thread_id(), CRYPTO_thread_idptr(), rw_text, operation_text,
+		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
@@ -527,11 +617,14 @@ int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
 
 		ret=add_lock_callback(pointer,amount,type,file,line);
 #ifdef LOCK_DEBUG
-		fprintf(stderr,"ladd:%08lx/%0xp:%2d+%2d->%2d %-18s %s:%d\n",
-			CRYPTO_thread_id(), CRYPTO_thread_idptr(),
-			before,amount,ret,
+		{
+		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
@@ -540,11 +633,15 @@ int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
 
 		ret= *pointer+amount;
 #ifdef LOCK_DEBUG
-		fprintf(stderr,"ladd:%08lx/%0xp:%2d+%2d->%2d %-18s %s:%d\n",
-			CRYPTO_thread_id(), CRYPTO_thread_idptr(),
+		{
+		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);
@@ -558,38 +655,63 @@ const char *CRYPTO_get_lock_name(int type)
 		return("dynamic");
 	else if (type < CRYPTO_NUM_LOCKS)
 		return(lock_names[type]);
-	else if (type-CRYPTO_NUM_LOCKS > sk_num(app_locks))
+	else if (type-CRYPTO_NUM_LOCKS > sk_OPENSSL_STRING_num(app_locks))
 		return("ERROR");
 	else
-		return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS));
+		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)
-
-unsigned long  OPENSSL_ia32cap_P=0;
-unsigned long *OPENSSL_ia32cap_loc(void) { return &OPENSSL_ia32cap_P; }
+	defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
+
+unsigned int  OPENSSL_ia32cap_P[2];
+unsigned long *OPENSSL_ia32cap_loc(void)
+{   if (sizeof(long)==4)
+	/*
+	 * If 32-bit application pulls address of OPENSSL_ia32cap_P[0]
+	 * clear second element to maintain the illusion that vector
+	 * is 32-bit.
+	 */
+	OPENSSL_ia32cap_P[1]=0;
+    return (unsigned long *)OPENSSL_ia32cap_P;
+}
 
 #if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
 #define OPENSSL_CPUID_SETUP
+#if defined(_WIN32)
+typedef unsigned __int64 IA32CAP;
+#else
+typedef unsigned long long IA32CAP;
+#endif
 void OPENSSL_cpuid_setup(void)
 { static int trigger=0;
-  unsigned long OPENSSL_ia32_cpuid(void);
+  IA32CAP OPENSSL_ia32_cpuid(void);
+  IA32CAP vec;
   char *env;
 
     if (trigger)	return;
 
     trigger=1;
-    if ((env=getenv("OPENSSL_ia32cap")))
-	OPENSSL_ia32cap_P = strtoul(env,NULL,0)|(1<<10);
+    if ((env=getenv("OPENSSL_ia32cap"))) {
+	int off = (env[0]=='~')?1:0;
+#if defined(_WIN32)
+	if (!sscanf(env+off,"%I64i",&vec)) vec = strtoul(env+off,NULL,0);
+#else
+	if (!sscanf(env+off,"%lli",(long long *)&vec)) vec = strtoul(env+off,NULL,0);
+#endif
+	if (off) vec = OPENSSL_ia32_cpuid()&~vec;
+    }
     else
-	OPENSSL_ia32cap_P = OPENSSL_ia32_cpuid()|(1<<10);
+	vec = OPENSSL_ia32_cpuid();
+
     /*
      * |(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
 
@@ -605,6 +727,8 @@ void OPENSSL_cpuid_setup(void) {}
 #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
@@ -636,7 +760,6 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
 	case DLL_THREAD_ATTACH:
 		break;
 	case DLL_THREAD_DETACH:
-		ERR_remove_state(0);
 		break;
 	case DLL_PROCESS_DETACH:
 		break;
@@ -647,12 +770,35 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
 
 #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 */
 
@@ -665,11 +811,7 @@ int OPENSSL_isservice(void)
 
     if (len>512) return -1;		/* paranoia */
     len++,len&=~1;			/* paranoia */
-#ifdef _MSC_VER
-    name=(WCHAR *)_alloca(len+sizeof(WCHAR));
-#else
     name=(WCHAR *)alloca(len+sizeof(WCHAR));
-#endif
     if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len))
 	return -1;
 
@@ -714,11 +856,7 @@ void OPENSSL_showfatal (const char *fmta,...)
       size_t len_0=strlen(fmta)+1,i;
       WCHAR *fmtw;
 
-#ifdef _MSC_VER
-	fmtw = (WCHAR *)_alloca (len_0*sizeof(WCHAR));
-#else
-	fmtw = (WCHAR *)alloca (len_0*sizeof(WCHAR));
-#endif
+	fmtw = (WCHAR *)alloca(len_0*sizeof(WCHAR));
 	if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; }
 
 #ifndef OPENSSL_NO_MULTIBYTE
@@ -751,7 +889,7 @@ void OPENSSL_showfatal (const char *fmta,...)
 
 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
     /* this -------------v--- guards NT-specific calls */
-    if (GetVersion() < 0x80000000 && OPENSSL_isservice())
+    if (check_winnt() && 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);
@@ -777,7 +915,26 @@ 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; }
+
+int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
+	{
+	size_t i;
+	const unsigned char *a = in_a;
+	const unsigned char *b = in_b;
+	unsigned char x = 0;
+
+	for (i = 0; i < len; i++)
+		x |= a[i] ^ b[i];
+
+	return x;
+	}