Framework for glueing BIO layer and Win32 compiler run-time. Goal is to

make it possible to produce for a unified binary build, which can be
used with a variety of Win32 compilers.

4 files changed, 404 insertions, 0 deletions

diff --git a/ms/applink.c b/ms/applink.c
new file mode 100644
index 0000000000..4333d2639d
--- /dev/null
+++ b/ms/applink.c
@@ -0,0 +1,45 @@
+#define APPLINK_STDIN	1
+#define APPLINK_STDOUT	2
+#define APPLINK_STDERR	3
+#define APPLINK_FPRINTF	4
+#define APPLINK_FGETS	5
+#define APPLINK_FREAD	6
+#define APPLINK_FWRITE	7
+#define APPLINK_FSETMOD	8
+#define APPLINK_FEOF	9
+#define APPLINK_FCLOSE 	10	/* should not be used */
+#define APPLINK_MAX	10	/* always same as last macro */
+
+#ifndef APPMACROS_ONLY
+#include <stdio.h>
+#include <io.h>
+#include <fcntl.h>
+
+static void *app_stdin()	{ return stdin;  }
+static void *app_stdout()	{ return stdout; }
+static void *app_stderr()	{ return stderr; }
+static int   app_feof(FILE *fp)	{ return feof(fp); }
+static int   app_fsetmod(FILE *fp,char mod)
+{ return _setmode (_fileno(fp),mod=='b'?_O_BINARY:_O_TEXT); }
+
+__declspec(dllexport) void **OPENSSL_Applink()
+{ static int once=1;
+  static void *OPENSSL_ApplinkTable[APPLINK_MAX+1]={(void *)APPLINK_MAX};
+
+    if (once)
+    {	OPENSSL_ApplinkTable[APPLINK_STDIN]	= app_stdin;
+	OPENSSL_ApplinkTable[APPLINK_STDOUT]	= app_stdout;
+	OPENSSL_ApplinkTable[APPLINK_STDERR]	= app_stderr;
+	OPENSSL_ApplinkTable[APPLINK_FPRINTF]	= fprintf;
+	OPENSSL_ApplinkTable[APPLINK_FGETS]	= fgets;
+	OPENSSL_ApplinkTable[APPLINK_FREAD]	= fread;
+	OPENSSL_ApplinkTable[APPLINK_FWRITE]	= fwrite;
+	OPENSSL_ApplinkTable[APPLINK_FSETMOD]	= app_fsetmod;
+	OPENSSL_ApplinkTable[APPLINK_FEOF]	= app_feof;
+	OPENSSL_ApplinkTable[APPLINK_FCLOSE]	= fclose;
+	once = 0;
+    }
+
+  return OPENSSL_ApplinkTable;
+}
+#endif
diff --git a/ms/uplink.c b/ms/uplink.c
new file mode 100644
index 0000000000..c839f9b087
--- /dev/null
+++ b/ms/uplink.c
@@ -0,0 +1,168 @@
+#if defined(_WIN64) && !defined(UNICODE)
+#define UNICODE
+#endif
+#if defined(UNICODE) && !defined(_UNICODE)
+#define _UNICODE
+#endif
+#if defined(_UNICODE) && !defined(UNICODE)
+#define UNICODE
+#endif
+#if defined(_MSC_VER) && !defined(_WIN32_WINNT)
+#define _WIN32_WINNT 0x0333	/* 3.51 */
+#endif
+
+#include <windows.h>
+#include <tchar.h>
+#include <stdio.h>
+#include <malloc.h>
+#include "uplink.h"
+
+#ifdef _MSC_VER
+#pragma comment(lib,"delayimp")
+/*
+ * CL command line should also be complemented with following:
+ *
+ *	/link /delayload:advapi32.dll /delayload:user32.dll
+ *
+ * This is required if/as we want to support Win9x. With delayloaded
+ * DLLs in question all we have to do is to make sure NT-specific
+ * functions are not actually called under Win9x.
+ */
+#endif
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
+int IsService()
+{ HWINSTA h;
+  DWORD len;
+  WCHAR *name;
+
+    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 */
+#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;
+
+    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;
+}
+#endif
+
+static TCHAR msg[128];
+
+static void unimplemented ()
+{
+#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
+    /* this -------------v--- guards NT-specific calls */
+    if (GetVersion() < 0x80000000 && IsService())
+    {	HANDLE h = RegisterEventSource(0,_T("OPENSSL"));
+	TCHAR *pmsg=msg;
+	ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0);
+	DeregisterEventSource(h);
+    }
+    else
+#endif
+    {	MSGBOXPARAMS         m;
+
+	m.cbSize             = sizeof(m);
+	m.hwndOwner          = NULL;
+	m.lpszCaption        = _T("OpenSSL: FATAL");
+	m.dwStyle            = MB_OK;
+	m.hInstance          = NULL;
+	m.lpszIcon           = IDI_ERROR;
+	m.dwContextHelpId    = 0;
+	m.lpfnMsgBoxCallback = NULL;
+	m.dwLanguageId       = MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US);
+	m.lpszText           = msg;
+
+	MessageBoxIndirect (&m);
+    }
+    ExitProcess (1);
+}
+
+void OPENSSL_Uplink (void **table, int index)
+{ static HMODULE app=NULL;
+  static void **applinktable=NULL;
+  int len;
+
+    len = _stprintf (msg,_T("OPENSSL_Uplink(%p,%02X): "),table,index);
+    _tcscpy (msg+len,_T("unimplemented function"));
+    table [index] = unimplemented;
+
+    if (app==NULL && (app=GetModuleHandle(NULL))==NULL)
+    {	app=(HMODULE)-1; _tcscpy (msg+len,_T("no host application"));
+	return;
+    }
+    else if (app==(HMODULE)-1)	{ return; }
+
+    if (applinktable==NULL)
+    { void**(*applink)();
+
+	applink=(void**(*)())GetProcAddress(app,"OPENSSL_Applink");
+	if (applink==NULL)
+	{   app=(HMODULE)-1; _tcscpy (msg+len,_T("no OPENSSL_Applink"));
+	    return;
+	}
+	applinktable = (*applink)();
+	if (applinktable==NULL)
+	{   app=(HMODULE)-1; _tcscpy (msg+len,_T("no ApplinkTable"));
+	    return;
+	}
+    }
+
+    if (index > (int)applinktable[0])	{ return; }
+
+    if (applinktable[index]) table[index] = applinktable[index];
+}    
+
+#if defined(_MSC_VER) && defined(_M_IX86)
+#define LAZY(i)		\
+__declspec(naked) static void lazy##i () { 	\
+	_asm	push i				\
+	_asm	push OFFSET OPENSSL_UplinkTable	\
+	_asm	call OPENSSL_Uplink		\
+	_asm	add  esp,8			\
+	_asm	jmp  OPENSSL_UplinkTable+4*i	}
+
+#if APPLINK_MAX>20
+#error "Add more stubs..."
+#endif
+/* make some in advance... */
+LAZY(1)  LAZY(2)  LAZY(3)  LAZY(4)  LAZY(5)
+LAZY(6)  LAZY(7)  LAZY(8)  LAZY(9)  LAZY(10)
+LAZY(11) LAZY(12) LAZY(13) LAZY(14) LAZY(15)
+LAZY(16) LAZY(17) LAZY(18) LAZY(19) LAZY(20)
+void *OPENSSL_UplinkTable[] = {
+	(void *)APPLINK_MAX,
+	lazy1, lazy2, lazy3, lazy4, lazy5,
+	lazy6, lazy7, lazy8, lazy9, lazy10,
+	lazy11,lazy12,lazy13,lazy14,lazy15,
+	lazy16,lazy17,lazy18,lazy19,lazy20,
+};
+#endif
+
+#ifdef SELFTEST
+main() {  UP_fprintf(UP_stdout,"hello, world!\n"); }
+#endif
diff --git a/ms/uplink.h b/ms/uplink.h
new file mode 100644
index 0000000000..3e9911ab93
--- /dev/null
+++ b/ms/uplink.h
@@ -0,0 +1,14 @@
+#define APPMACROS_ONLY
+#include "applink.c"
+
+extern void *OPENSSL_UplinkTable[];
+#define UP_stdin  (*(void *(*)())OPENSSL_UplinkTable[APPLINK_STDIN])()
+#define UP_stdout (*(void *(*)())OPENSSL_UplinkTable[APPLINK_STDOUT])()
+#define UP_stderr (*(void *(*)())OPENSSL_UplinkTable[APPLINK_STDERR])()
+#define UP_fprintf (*(int (*)(void *,const char *,...))OPENSSL_UplinkTable[APPLINK_FPRINTF])
+#define UP_fgets  (*(char *(*)(char *,int,void *))OPENSSL_UplinkTable[APPLINK_FGETS])
+#define UP_fread  (*(size_t (*)(void *,size_t,size_t,void *))OPENSSL_UplinkTable[APPLINK_FREAD])
+#define UP_fwrite (*(size_t (*)(void *,size_t,size_t,void *))OPENSSL_UplinkTable[APPLINK_FWRITE])
+#define UP_fsetmod (*(int (*)(void *,char))OPENSSL_UplinkTable[APPLINK_FSETMOD])
+#define UP_feof   (*(int (*)(void *))OPENSSL_UplinkTable[APPLINK_FEOF])
+#define UP_fclose (*(int (*)(void *))OPENSSL_Uplink[APPLINK_FCLOSE])
diff --git a/ms/uplink.pl b/ms/uplink.pl
new file mode 100755
index 0000000000..801f6e01fa
--- /dev/null
+++ b/ms/uplink.pl
@@ -0,0 +1,177 @@
+#!/usr/bin/env perl
+#
+# For Microsoft CL this is implemented as inline assembler. So that
+# even though this script can generate even Win32 code, we'll be
+# using it primarily to generate Win64 modules. Both IA-64 and AMD64
+# are supported...
+
+# pull APPLINK_MAX value from applink.c...
+$applink_c=$0;
+$applink_c=~s|[^/\\]+$||g;
+$applink_c.="applink.c";
+open(INPUT,$applink_c) || die "can't open $applink_c: $!";
+@max=grep {/APPLINK_MAX\s+(\d+)/} <INPUT>;
+close(INPUT);
+($#max==0) or die "can't find APPLINK_MAX in $applink_c";
+
+$max[0]=~/APPLINK_MAX\s+(\d+)/;
+$N=$1;	# number of entries in OPENSSL_UplinkTable not including
+	# OPENSSL_UplinkTable[0], which contains this value...
+
+# Idea is to fill the OPENSSL_UplinkTable with pointers to stubs
+# which invoke 'void OPENSSL_Uplink (ULONG_PTR *table,int index)';
+# and then dereference themselves. Latter shall result in endless
+# loop *unless* OPENSSL_Uplink does not replace 'table[index]' with
+# something else, e.g. as 'table[index]=unimplemented;'...
+
+$arg = shift;
+#( defined shift || open STDOUT,">$arg" ) || die "can't open $arg: $!";
+
+if ($arg =~ /win32n/)	{ ia32nasm();  }
+elsif ($arg =~ /win32/)	{ ia32masm();  }
+elsif ($arg =~ /ia64/)	{ ia64ias();   }
+elsif ($arg =~ /amd64/)	{ amd64masm(); }
+else	{ die "nonsense $arg"; }
+
+sub ia32masm() {
+print <<___;
+.386P
+.model	FLAT
+
+_DATA	SEGMENT
+PUBLIC	_OPENSSL_UplinkTable
+_OPENSSL_UplinkTable	DD	$N	; amount of following entries
+___
+for ($i=1;$i<=$N;$i++) {   print "	DD	FLAT:\$lazy$i\n";   }
+print <<___;
+_DATA	ENDS
+
+_TEXT	SEGMENT
+EXTRN	_OPENSSL_Uplink:NEAR
+___
+for ($i=1;$i<=$N;$i++) {
+print <<___;
+ALIGN	4
+\$lazy$i	PROC NEAR
+	push	$i
+	push	OFFSET FLAT:_OPENSSL_UplinkTable
+	call	_OPENSSL_Uplink
+	add	esp,8
+	jmp	DWORD PTR _OPENSSL_UplinkTable+4*$i
+\$lazy$i	ENDP
+___
+}
+print <<___;
+ALIGN	4
+_TEXT	ENDS
+END
+___
+}
+
+sub ia32nasm() {
+print <<___;
+SEGMENT	.data
+GLOBAL	_OPENSSL_UplinkTable
+_OPENSSL_UplinkTable	DD	$N	; amount of following entries
+___
+for ($i=1;$i<=$N;$i++) {   print "	DD	\$lazy$i\n";   }
+print <<___;
+
+SEGMENT	.text
+EXTERN	_OPENSSL_Uplink
+___
+for ($i=1;$i<=$N;$i++) {
+print <<___;
+ALIGN	4
+\$lazy$i:
+	push	$i
+	push	_OPENSSL_UplinkTable
+	call	_OPENSSL_Uplink
+	add	esp,8
+	jmp	[_OPENSSL_UplinkTable+4*$i]
+___
+}
+print <<___;
+ALIGN	4
+END
+___
+}
+
+sub ia64ias () {
+local $V=8;	# max number of args uplink functions may accept...
+print <<___;
+.data
+.global	OPENSSL_UplinkTable#
+OPENSSL_UplinkTable:	data8	$N	// amount of following entries
+___
+for ($i=1;$i<=$N;$i++) {   print "	data8	\@fptr(lazy$i#)\n";   }
+print <<___;
+.size	OPENSSL_UplinkTable,.-OPENSSL_UplinkTable#
+
+.text
+.global	OPENSSL_Uplink#
+.type	OPENSSL_Uplink#,\@function
+___
+for ($i=1;$i<=$N;$i++) {
+print <<___;
+.proc	lazy$i
+lazy$i:
+{ .mii;	alloc	loc0=ar.pfs,$V,3,2,0
+	mov	loc1=b0
+	addl	loc2=\@ltoff(OPENSSL_UplinkTable#),gp	};;
+{ .mmi;	ld8	out0=[loc2]
+	mov	out1=$i					};;
+{ .mib;	adds	loc2=8*$i,out0
+	br.call.sptk.many	b0=OPENSSL_Uplink#	};;
+{ .mmi;	ld8	r31=[loc2];;
+	ld8	r30=[r31],8				};;
+{ .mii;	ld8	gp=[r31]
+	mov	b6=r30
+	mov	b0=loc1					};;
+{ .mib; mov	ar.pfs=loc0
+	br.many	b6					};;
+.endp	lazy$i#
+___
+}
+}
+
+sub amd64masm() {
+print <<___;
+_DATA	SEGMENT
+PUBLIC	OPENSSL_UplinkTable
+OPENSSL_UplinkTable	DQ	$N
+___
+for ($i=1;$i<=$N;$i++) {   print "	DQ	FLAT:\$lazy$i\n";   }
+print <<___;
+_DATA	ENDS
+
+TEXT	SEGMENT
+EXTERN	OPENSSL_Uplink:NEAR
+___
+for ($i=1;$i<=$N;$i++) {
+print <<___;
+ALIGN	4
+\$lazy$i	PROC NEAR
+	push	r9
+	push	r8
+	push	rdx
+	push	rcx
+	sub	rsp,40
+	mov	rcx,OFFSET FLAT:OPENSSL_UplinkTable
+	mov	rdx,$i
+	call	OPENSSL_Uplink
+	add	rsp,40
+	pop	rcx
+	pop	rdx
+	pop	r8
+	pop	r9
+	jmp	QWORD PTR OPENSSL_UplinkTable+8*$i
+\$lazy$i	ENDP
+___
+}
+print <<___;
+TEXT	ENDS
+END
+___
+}
+