--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/sfile/sf_lwins.cpp	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,601 @@
+// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// f32\sfile\sf_lwins.cpp
+// 
+//
+
+#include "sf_std.h"
+#include <f32image.h>
+#include "sf_image.h"
+#include <e32uid.h>
+#include <emulator.h>
+#include <e32wins.h>
+#include <stdlib.h>
+#include <hal.h>
+
+_LIT(KDirSystemPrograms,"\\System\\Programs\\");
+_LIT(KDirSystemLibs,"\\System\\Libs\\");
+_LIT8(KRomSystemLibs,"z:\\system\\libs\\");
+
+_LIT(KDirSysBin,"\\sys\\bin\\");
+_LIT8(KRomSysBin,"z:\\sys\\bin\\");
+_LIT(KDirSystemBin,"\\System\\Bin\\");
+_LIT8(KRomSystemBin,"z:\\system\\Bin\\");
+
+#ifdef _DEBUG
+extern TRequestStatus* ProcessDestructStatPtr;
+extern TBool ProcessCreated;
+#endif
+
+
+/******************************************************************************
+ * Executable file find routines for WINS
+ ******************************************************************************/
+
+TInt GetPEInfo(TProcessCreateInfo& aInfo)
+//
+// Extract the Uids, etc from the PE file
+//
+	{
+	TBuf<MAX_PATH> ifilename;
+	ifilename.Copy(aInfo.iFileName);
+	TBuf<MAX_PATH> filename;
+	TInt r = MapEmulatedFileName(filename, ifilename);
+	if (r == KErrNone)
+		{
+		Emulator::RImageFile pefile;
+		r = pefile.Open(filename.PtrZ());
+		if (r == KErrNone)
+			{
+			pefile.GetInfo(aInfo);
+			// Overide capabilities in image
+			for(TInt i=0; i<SCapabilitySet::ENCapW; i++)
+				{
+				aInfo.iS.iCaps[i] |= DisabledCapabilities[i];
+				aInfo.iS.iCaps[i] &= AllCapabilities[i];
+				}
+			pefile.Close();
+			}
+		}
+	return r;
+	}
+
+TBool CheckIsDirectoryName(TProcessCreateInfo& aInfo)
+//
+// Attempt to get file attributes from Windows if attributes can't be found 
+// just assume not a directory otherwise check the directory bit
+// Only intended for use by FindBin, FindDll and FindExe
+//
+	{	
+	TBuf<MAX_PATH> ifilename;
+	ifilename.Copy(aInfo.iFileName);
+	TBuf<MAX_PATH> filename;
+	if (MapEmulatedFileName(filename, ifilename) != KErrNone)
+		return EFalse; // just return EFalse as the error will be picked up later
+	
+	DWORD attr = Emulator::GetFileAttributes(filename.PtrZ());
+	if (attr != -1 && (attr & FILE_ATTRIBUTE_DIRECTORY))
+		return ETrue;
+	return EFalse;
+	}
+
+TInt FindBin(E32Image& aImage)
+//
+// WINS find Binary in system bin
+// System directories on all drives Y-A,Z
+//
+	{
+	__IF_DEBUG(Printf("FindBin"));
+
+	TInt len=aImage.iFileName.Length();
+	// check if it's a bare drive letter with no path
+	if (len>=3 && aImage.iFileName[1]==':' && aImage.iFileName[2]!='\\')
+		{
+		if (len + KRomSysBin().Length()-2 <= aImage.iFileName.MaxLength())
+			aImage.iFileName.Insert(2,KRomSysBin().Mid(2));
+		}
+	
+	// Ensure consistent error codes with h/w, see DEF092502
+	// Unlike Symbian on h/w targets, on Windows searching 
+	// for a driectory, including "." and "..", will return KErrorAccessDenied
+	if (CheckIsDirectoryName(aImage))
+		return KErrNotFound;	
+	
+	// first try and find it in the given directory
+	TInt r=GetPEInfo(aImage);
+
+	// Next : if looking at z:\sys\bin then look for it in emulator path
+	if (r == KErrNotFound || r == KErrPathNotFound)
+		{
+		if (aImage.iFileName.FindF(KRomSysBin) == 0)
+			{
+			aImage.iFileName.Delete(0, KRomSysBin().Length());
+			r = GetPEInfo(aImage);
+			}
+
+		if (r==KErrNotFound || r == KErrPathNotFound)
+			{
+			//	Now try finding it in the EPOC scheme of things
+			TBuf<MAX_PATH> ifilename;
+			ifilename.Copy(aImage.iFileName);
+			TFindFile ff(gTheLoaderFs);
+			r=ff.FindByDir(ifilename,KDirSysBin);
+			if (r==KErrNone)
+				{
+				aImage.iFileName.Copy(ff.File());
+				__IF_DEBUG(Printf("Found file %S",&aImage.iFileName));
+				r=GetPEInfo(aImage);
+				}
+			else
+				{
+				// Last chance look in emulator path for driveless things
+				if (aImage.iFileName.FindF(KRomSysBin().Mid(2)) == 0)
+					{
+					aImage.iFileName.Delete(0, KRomSysBin().Length()-2);
+					r = GetPEInfo(aImage);
+					}
+				else 
+					{
+					__IF_DEBUG(Printf("Filename %S not found in ?:\\sys\\bin",&aImage.iFileName));
+					r=KErrNotFound;
+					}
+				}
+			}
+		}
+
+	if(PlatSec::ConfigSetting(PlatSec::EPlatSecEnforceSysBin))
+		return r;
+
+	// Next : if looking at z:\system\bin then look for it in emulator path
+	if (r == KErrNotFound || r == KErrPathNotFound)
+		{
+		if (aImage.iFileName.FindF(KRomSystemBin) == 0)
+			{
+			aImage.iFileName.Delete(0, KRomSystemBin().Length());
+			r = GetPEInfo(aImage);
+			}
+
+		if (r==KErrNotFound || r == KErrPathNotFound)
+			{
+			//	Now try finding it in the EPOC scheme of things
+			TBuf<MAX_PATH> ifilename;
+			ifilename.Copy(aImage.iFileName);
+			TFindFile ff(gTheLoaderFs);
+			r=ff.FindByDir(ifilename,KDirSystemBin);
+			if (r==KErrNone)
+				{
+				aImage.iFileName.Copy(ff.File());
+				__IF_DEBUG(Printf("Found file %S",&aImage.iFileName));
+				r=GetPEInfo(aImage);
+				}
+			else
+				{
+				__IF_DEBUG(Printf("Filename %S not found",&aImage.iFileName));
+				r=KErrNotFound;
+				}
+			}
+		}
+	return r;
+	}
+
+
+TInt FindExe(E32Image& aImage)
+//
+// WINS find executable
+// System directories on all drives Y-A,Z
+//
+	{
+	__IF_DEBUG(Printf("FindExe"));
+
+	TInt len  = aImage.iFileName.Length();
+	// check if it's a bare drive letter with no path
+	if (len >= 3 && aImage.iFileName[1]==':' && aImage.iFileName[2]!='\\')
+		{
+		if (len + KRomSysBin().Length()-2 <= aImage.iFileName.MaxLength())
+			aImage.iFileName.Insert(2,KRomSysBin().Mid(2));
+		}
+	// Ensure consistent error codes with h/w, see DEF092502
+	// Unlike Symbian on h/w targets, on Windows searching 
+	// for a driectory, including "." and "..", will return KErrorAccessDenied
+	if (CheckIsDirectoryName(aImage))
+		return KErrNotFound;
+	
+	// first try and find it in the given directory
+	TInt r=GetPEInfo(aImage);
+
+	// Next : if looking at z:\sys\bin then look for it in emulator path
+	if (r == KErrNotFound || r == KErrPathNotFound)
+		{
+		if (aImage.iFileName.FindF(KRomSysBin) == 0)
+			{
+			aImage.iFileName.Delete(0, KRomSysBin().Length());
+			r = GetPEInfo(aImage);
+			}
+
+		if (r==KErrNotFound || r == KErrPathNotFound)
+			{
+			//	Now try finding it in the EPOC scheme of things
+			TBuf<MAX_PATH> ifilename;
+			ifilename.Copy(aImage.iFileName);
+			TFindFile ff(gTheLoaderFs);
+			r=ff.FindByDir(ifilename,KDirSysBin);
+			if (r==KErrNone)
+				{
+				aImage.iFileName.Copy(ff.File());
+				__IF_DEBUG(Printf("Found file %S",&aImage.iFileName));
+				r=GetPEInfo(aImage);
+				}
+			else
+				{
+				__IF_DEBUG(Printf("Filename %S not found in ?:\\sys\\bin",&aImage.iFileName));
+				r=KErrNotFound;
+				}
+			}
+		}
+
+	if(PlatSec::ConfigSetting(PlatSec::EPlatSecEnforceSysBin))
+		return r;
+
+	// Next : if looking at z:\system\libs then look for it in emulator path
+	if (r == KErrNotFound || r == KErrPathNotFound)
+		{
+		if (aImage.iFileName.FindF(KRomSystemLibs) == 0)
+			{
+			aImage.iFileName.Delete(0, KRomSystemLibs().Length());
+			r = GetPEInfo(aImage);
+			}
+
+		if (r==KErrNotFound || r == KErrPathNotFound)
+			{
+			//	Now try finding it in the EPOC scheme of things
+			TBuf<MAX_PATH> ifilename;
+			ifilename.Copy(aImage.iFileName);
+			TFindFile ff(gTheLoaderFs);
+			r=ff.FindByDir(ifilename,KDirSystemPrograms);
+			if (r==KErrNone)
+				{
+				aImage.iFileName.Copy(ff.File());
+				__IF_DEBUG(Printf("Found file %S",&aImage.iFileName));
+				r=GetPEInfo(aImage);
+				}
+			else
+				{
+				__IF_DEBUG(Printf("Filename %S not found",&aImage.iFileName));
+				r=KErrNotFound;
+				}
+			}
+		}
+	return r;
+	}
+
+// WINS FindDll
+TInt FindDll(E32Image& aImage, const TDesC8* aPath)
+//
+// Search for a dll in the following sequence ...
+// 1. Supplied path parameter
+// 2. System directories on all drives
+//
+	{
+
+	TInt len = aImage.iFileName.Length();
+	// check if it's a bare drive letter with no path
+	if (len >=3 && aImage.iFileName[1]==':' && aImage.iFileName[2]!='\\')
+		{
+		if (len + KRomSysBin().Length()-2 <= aImage.iFileName.MaxLength())
+			aImage.iFileName.Insert(2,KRomSysBin().Mid(2));
+		}
+	
+	// Ensure consistent error codes with h/w, see DEF092502
+	// Unlike Symbian on h/w targets, on Windows searching 
+	// for a driectory, including "." and "..", will return KErrorAccessDenied
+	if (CheckIsDirectoryName(aImage))
+		return KErrNotFound;
+	
+	TInt r=GetPEInfo(aImage);
+
+	// Next : if looking at z:\system\libs then look for it in emulator path
+	if (r == KErrNotFound || r == KErrPathNotFound)
+		{
+		if (aImage.iFileName.FindF(KRomSysBin) == 0)
+			{
+			aImage.iFileName.Delete(0, KRomSysBin().Length());
+			r = GetPEInfo(aImage);
+			}
+
+		if(!PlatSec::ConfigSetting(PlatSec::EPlatSecEnforceSysBin))
+			if (r == KErrNotFound || r == KErrPathNotFound)
+				if (aImage.iFileName.FindF(KRomSystemLibs) == 0)
+					{
+					aImage.iFileName.Delete(0, KRomSystemLibs().Length());
+					r = GetPEInfo(aImage);
+					}
+
+		TBuf<MAX_PATH> ifilename;
+		ifilename.Copy(aImage.iFileName);
+		if (r==KErrNotFound || r == KErrPathNotFound)
+			{
+			//	Now try finding it in the EPOC scheme of things
+			TFindFile ff(gTheLoaderFs);
+			__IF_DEBUG(Printf("FindDll aDllName %S, aPath %S",&aImage.iFileName,aPath?aPath:&KNullDesC8));
+			if (aPath && aPath->Length()!=0)
+				{
+				TBuf<MAX_PATH> ipath;
+				ipath.Copy(*aPath);
+				r=ff.FindByPath(ifilename, &ipath);
+				if (r==KErrNone)
+					{
+					aImage.iFileName.Copy(ff.File());
+					__IF_DEBUG(Printf("Found file %S",&aImage.iFileName));
+					r=GetPEInfo(aImage);
+					}
+				}
+
+			if (r!=KErrNone)
+				{
+				r=ff.FindByDir(ifilename,KDirSysBin);
+				if (r==KErrNone)
+					{
+					aImage.iFileName.Copy(ff.File());
+					__IF_DEBUG(Printf("Found file %S",&aImage.iFileName));
+					r=GetPEInfo(aImage);
+					}
+				}
+
+			if(!PlatSec::ConfigSetting(PlatSec::EPlatSecEnforceSysBin))
+				if (r!=KErrNone)
+					{
+					r=ff.FindByDir(ifilename,KDirSystemLibs);
+					if (r==KErrNone)
+						{
+						aImage.iFileName.Copy(ff.File());
+						__IF_DEBUG(Printf("Found file %S",&aImage.iFileName));
+						r=GetPEInfo(aImage);
+						}
+					}
+
+			if(r!=KErrNone)
+				{
+				__IF_DEBUG(Printf("Filename %S not found",&aImage.iFileName));
+				r=KErrNotFound;
+				}
+			}
+		}
+	return r;
+	}
+
+/******************************************************************************
+ * WINS specific E32Image functions
+ ******************************************************************************/
+
+TInt E32Image::ProcessFileName()
+//
+// Get the properly capitalised file name and root name
+//
+	{
+
+	TFileNameInfo fni;
+	TInt r = fni.Set(iFileName, 0);
+	if (r!=KErrNone)
+		return r;
+	iRootNameOffset = fni.iBasePos;
+	iRootNameLength = fni.iLen - fni.iBasePos;
+	iExtOffset = fni.iExtPos;
+//	TBuf<MAX_PATH> filename;
+//	TInt r=MapEmulatedFileName(filename, iFileName);
+//	if (r!=KErrNone)
+//		return r;
+//	WIN32_FIND_DATA w32fd;
+//	HANDLE h=Emulator::FindFirstFile(filename.PtrZ(), &w32fd);
+//	if (h==0)
+//		return Emulator::LastError();
+//	TPtrC real_filename((const TText*)&w32fd.cFileName[0]);
+//	FindClose(h);
+//	iFileName.SetLength(slash+1);
+//	iFileName+=real_filename;
+	__IF_DEBUG(Printf("ProcessFileName: %S,%d,%d,%d",&iFileName,iRootNameOffset,iRootNameLength,iExtOffset));
+	return KErrNone;
+	}
+
+TInt E32Image::LoadProcess(const RLdrReq& aReq)
+	{
+	__IF_DEBUG(Printf("E32Image::LoadProcess %S",&aReq.iFileName));
+
+	iFileName=*aReq.iFileName;
+	TInt r=FindExe(*this);
+	if (r!=KErrNone)
+		r=FindBin(*this);
+	if (r==KErrNone)
+		r=ProcessFileName();
+	if (r==KErrNone)
+		r=CheckUids(iUids, aReq.iRequestedUids);
+	if (r!=KErrNone)
+		return r;
+	r = aReq.iMsg->Client((RThread&)aReq.iClientThread);
+	if (r!=KErrNone)
+		return r;
+	iClientHandle=aReq.iClientThread.Handle();
+#ifdef _DEBUG
+	iDestructStat = ProcessDestructStatPtr;
+#endif
+	iFlags |= EDataUnpaged;	// Data paging is not supported on the emulator
+	r=E32Loader::ProcessCreate(*this, aReq.iCmd);
+	__IF_DEBUG(Printf("Done E32Loader::ProcessCreate %d",r));
+	if (r!=KErrNone)
+		return r;
+#ifdef _DEBUG
+	ProcessCreated = ETrue;
+#endif
+	iClientProcessHandle=iProcessHandle;
+	r=E32Loader::ProcessLoaded(*this);
+	return r;
+	}
+
+// Load a code segment, plus all imports if main loadee
+TInt E32Image::LoadCodeSeg(const RLdrReq& aReq)
+	{
+	__IF_DEBUG(Printf("E32Image::LoadCodeSeg %S",aReq.iFileName));
+
+	const TDesC8& reqName=*aReq.iFileName;
+	const TDesC8* searchPath=aReq.iPath;
+		
+	iFileName=reqName;
+	TInt r=FindDll(*this, searchPath);
+	if (r!=KErrNone)
+		r=FindBin(*this);
+	// Hack to support EXEDLLs which are DLLs but have EXE file extentions
+	if(r==KErrNotFound)
+		{
+		if(iFileName.Right(4).CompareF(_L8(".DLL"))==0)
+			{
+			TUint8* p = (TUint8*)iFileName.Ptr() + iFileName.Length() - 3;
+			*p++ = 'E';
+			*p++ = 'X';
+			*p++ = 'E';
+			r=FindDll(*this, searchPath);
+			if (r!=KErrNone)
+				r=FindBin(*this);
+			}
+		}
+	if (r==KErrNone)
+		r=ProcessFileName();
+	if (r==KErrNone)
+		r=CheckUids(iUids, aReq.iRequestedUids);
+
+	if(r==KErrNone)
+		{
+		if(this == iMain)
+			{
+			// Check that we can legally load the DLL into the process
+			r=aReq.CheckSecInfo(iS);
+			}
+		}
+	if (r!=KErrNone)
+		return r;
+		
+	__IF_DEBUG(Printf("Checking uids for %S", &iFileName));
+	if (iUids[0]!=KDynamicLibraryUid && iUids[0]!=KExecutableImageUid)
+	    return KErrNotSupported;
+	r=CheckAlreadyLoaded();
+	if (r!=KErrNone || iAlreadyLoaded)
+		{
+		__IF_DEBUG(Printf("<LoadCodeSeg AlreadyLoaded %d",r));
+		return r;		// already loaded, either share or give up
+		}
+	__IF_DEBUG(Printf("CodeSeg create"));
+	r=E32Loader::CodeSegCreate(*this);
+	if (r==KErrNone)
+		r=E32Loader::CodeSegLoaded(*this);
+
+	__IF_DEBUG(Printf("<LoadCodeSeg, r=%d",r));
+	return r;
+	}
+
+//__DATA_CAGING__
+TInt ReadCapabilities(RLdrReq& aReq)
+//	
+//	Wins version
+//
+	{
+	E32Image* e=new E32Image;
+	if (!e)
+		return KErrNoMemory;
+	e->iMain=e;
+	e->iFileName=*aReq.iFileName;
+	TInt r=GetPEInfo(*e);
+	if (r==KErrNotFound || r == KErrPathNotFound)
+		{
+		//	z:\sys\bin\* may be found in emulator path
+		if (e->iFileName.FindF(KRomSysBin) == 0)
+			{
+			e->iFileName.Delete(0, KRomSysBin().Length());
+			r = GetPEInfo(*e);
+			}
+		}
+
+	if(!PlatSec::ConfigSetting(PlatSec::EPlatSecEnforceSysBin))
+		if (r==KErrNotFound || r == KErrPathNotFound)
+			{
+			//	z:\system\bin\* may be found in emulator path
+			if (e->iFileName.FindF(KRomSystemBin) == 0)
+				{
+				e->iFileName.Delete(0, KRomSystemBin().Length());
+				r = GetPEInfo(*e);
+				}
+			}
+	TPtrC8 caps((const TUint8*)&e->iS.iCaps, sizeof(e->iS.iCaps));
+	if (r==KErrNone)
+		r=aReq.iMsg->Write(2, caps);
+	delete e;
+	return r;
+	}
+
+TInt GetModuleInfo(RLdrReq& aReq)
+//
+//	Read capabilities from file found
+//
+	{
+	__IF_DEBUG(Printf("ReadModuleInfo %S",aReq.iFileName));
+	TFileNameInfo& fi = aReq.iFileNameInfo;
+	TInt r = KErrNotSupported;
+
+	// must specify a fully qualified name
+	if (fi.DriveLen() && fi.PathLen())
+		{
+		E32Image* e=new E32Image;
+		if (!e)
+			return KErrNoMemory;
+		e->iMain = e;
+		e->iFileName = *aReq.iFileName;
+		r = GetPEInfo(*e);
+		if (r==KErrNotFound || r == KErrPathNotFound)
+			{
+			//	z:\system\bin\* may be found in emulator path
+			if (e->iFileName.FindF(KRomSysBin) == 0)
+				{
+				e->iFileName.Delete(0, KRomSysBin().Length());
+				r = GetPEInfo(*e);
+				}
+
+			if(!PlatSec::ConfigSetting(PlatSec::EPlatSecEnforceSysBin))
+				if(r!=KErrNone)
+					if (e->iFileName.FindF(KRomSystemBin) == 0)
+						{
+						e->iFileName.Delete(0, KRomSystemBin().Length());
+						r = GetPEInfo(*e);
+						}
+			}
+		if (r == KErrNone)
+			{
+			RLibrary::TInfo ret_info;
+			memclr(&ret_info,sizeof(ret_info));
+			ret_info.iModuleVersion = e->iModuleVersion;
+			ret_info.iUids = e->iUids;
+			*(SSecurityInfo*)&ret_info.iSecurityInfo = e->iS;
+			TPckgC<RLibrary::TInfo> ret_pckg(ret_info);
+			r = aReq.iMsg->Write(2, ret_pckg);
+			}
+		delete e;
+		}
+	return r;
+	}
+
+TInt GetInfoFromHeader(const RLoaderMsg& /*aMsg*/)
+	{
+	TInt r;
+	r = KErrNotSupported;
+	return r;
+	}
+
+
+