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.

diff --git a/ms/applink.c b/ms/applink.c
new file mode 100644 (file)
index 0000000..4333d26
--- /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 (file)
index 0000000..c839f9b
--- /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 (file)
index 0000000..3e9911a
--- /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 (executable)
index 0000000..801f6e0
--- /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
+___
+}
+