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[FREELDR]

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Replace the fake export table with the real export table of freeldr, when loading ntbootdd.sys

svn path=/trunk/; revision=53915
This commit is contained in:
Timo Kreuzer 2011-10-01 12:50:33 +00:00
parent 6130e7f546
commit fee9838d50
1 changed files with 5 additions and 87 deletions
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92
reactos/boot/freeldr/freeldr/disk/scsiport.c
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@ -1557,68 +1557,11 @@ ScsiPortWriteRegisterUshort(
WRITE_REGISTER_USHORT(Register, Value);
}
extern char __ImageBase;
ULONG
LoadBootDeviceDriver(VOID)
{
struct
{
CHAR* Name;
PVOID Function;
} ExportTable[] =
{
{ "ScsiDebugPrint", ScsiDebugPrint },
{ "ScsiPortCompleteRequest", ScsiPortCompleteRequest },
{ "ScsiPortConvertPhysicalAddressToUlong", ScsiPortConvertPhysicalAddressToUlong },
{ "ScsiPortConvertUlongToPhysicalAddress", ScsiPortConvertUlongToPhysicalAddress },
{ "ScsiPortFlushDma", ScsiPortFlushDma },
{ "ScsiPortFreeDeviceBase", ScsiPortFreeDeviceBase },
{ "ScsiPortGetBusData", ScsiPortGetBusData },
{ "ScsiPortGetDeviceBase", ScsiPortGetDeviceBase },
{ "ScsiPortGetLogicalUnit", ScsiPortGetLogicalUnit },
{ "ScsiPortGetPhysicalAddress", ScsiPortGetPhysicalAddress },
{ "ScsiPortGetSrb", ScsiPortGetSrb },
{ "ScsiPortGetUncachedExtension", ScsiPortGetUncachedExtension },
{ "ScsiPortGetVirtualAddress", ScsiPortGetVirtualAddress },
{ "ScsiPortInitialize", ScsiPortInitialize },
{ "ScsiPortIoMapTransfer", ScsiPortIoMapTransfer },
{ "ScsiPortLogError", ScsiPortLogError },
{ "ScsiPortMoveMemory", ScsiPortMoveMemory },
{ "ScsiPortNotification", ScsiPortNotification },
{ "ScsiPortReadPortBufferUchar", ScsiPortReadPortBufferUchar },
{ "ScsiPortReadPortBufferUlong", ScsiPortReadPortBufferUlong },
{ "ScsiPortReadPortBufferUshort", ScsiPortReadPortBufferUshort },
{ "ScsiPortReadPortUchar", ScsiPortReadPortUchar },
{ "ScsiPortReadPortUlong", ScsiPortReadPortUlong },
{ "ScsiPortReadPortUshort", ScsiPortReadPortUshort },
{ "ScsiPortReadRegisterBufferUchar", ScsiPortReadRegisterBufferUchar },
{ "ScsiPortReadRegisterBufferUlong", ScsiPortReadRegisterBufferUlong },
{ "ScsiPortReadRegisterBufferUshort", ScsiPortReadRegisterBufferUshort },
{ "ScsiPortReadRegisterUchar", ScsiPortReadRegisterUchar },
{ "ScsiPortReadRegisterUlong", ScsiPortReadRegisterUlong },
{ "ScsiPortReadRegisterUshort", ScsiPortReadRegisterUshort },
{ "ScsiPortSetBusDataByOffset", ScsiPortSetBusDataByOffset },
{ "ScsiPortStallExecution", ScsiPortStallExecution },
{ "ScsiPortValidateRange", ScsiPortValidateRange },
{ "ScsiPortWritePortBufferUchar", ScsiPortWritePortBufferUchar },
{ "ScsiPortWritePortBufferUlong", ScsiPortWritePortBufferUlong },
{ "ScsiPortWritePortBufferUshort", ScsiPortWritePortBufferUshort },
{ "ScsiPortWritePortUchar", ScsiPortWritePortUchar },
{ "ScsiPortWritePortUlong", ScsiPortWritePortUlong },
{ "ScsiPortWritePortUshort", ScsiPortWritePortUshort },
{ "ScsiPortWriteRegisterBufferUchar", ScsiPortWriteRegisterBufferUchar },
{ "ScsiPortWriteRegisterBufferUlong", ScsiPortWriteRegisterBufferUlong },
{ "ScsiPortWriteRegisterBufferUshort", ScsiPortWriteRegisterBufferUshort },
{ "ScsiPortWriteRegisterUchar", ScsiPortWriteRegisterUchar },
{ "ScsiPortWriteRegisterUlong", ScsiPortWriteRegisterUlong },
{ "ScsiPortWriteRegisterUshort", ScsiPortWriteRegisterUshort },
};
IMAGE_DOS_HEADER ImageDosHeader;
IMAGE_NT_HEADERS ImageNtHeaders;
IMAGE_EXPORT_DIRECTORY ImageExportDirectory;
CHAR* TableName[sizeof(ExportTable) / sizeof(ExportTable[0])];
USHORT OrdinalTable[sizeof(ExportTable) / sizeof(ExportTable[0])];
ULONG FunctionTable[sizeof(ExportTable) / sizeof(ExportTable[0])];
PIMAGE_NT_HEADERS NtHeaders;
LOADER_PARAMETER_BLOCK LoaderBlock;
PIMAGE_IMPORT_DESCRIPTOR ImportTable;
@ -1627,38 +1570,12 @@ LoadBootDeviceDriver(VOID)
CHAR NtBootDdPath[MAX_PATH];
PVOID ImageBase;
ULONG (NTAPI *EntryPoint)(IN PVOID DriverObject, IN PVOID RegistryPath);
USHORT i;
BOOLEAN Status;
/* Some initialization of our temporary loader block */
RtlZeroMemory(&LoaderBlock, sizeof(LOADER_PARAMETER_BLOCK));
InitializeListHead(&LoaderBlock.LoadOrderListHead);
/* Create our fake executable header for freeldr.sys */
RtlZeroMemory(&ImageDosHeader, sizeof(IMAGE_DOS_HEADER));
RtlZeroMemory(&ImageNtHeaders, sizeof(IMAGE_NT_HEADERS));
RtlZeroMemory(&ImageExportDirectory, sizeof(IMAGE_EXPORT_DIRECTORY));
ImageDosHeader.e_magic = SWAPW(IMAGE_DOS_SIGNATURE);
ImageDosHeader.e_lfanew = SWAPD((ULONG_PTR)&ImageNtHeaders - (ULONG_PTR)&ImageDosHeader);
ImageNtHeaders.Signature = IMAGE_NT_SIGNATURE;
ImageNtHeaders.OptionalHeader.NumberOfRvaAndSizes = SWAPD(IMAGE_DIRECTORY_ENTRY_EXPORT + 1);
ImageNtHeaders.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress =
SWAPW((ULONG_PTR)&ImageExportDirectory - (ULONG_PTR)&ImageDosHeader);
ImageNtHeaders.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size = 1;
ImageExportDirectory.NumberOfNames = sizeof(ExportTable) / sizeof(ExportTable[0]);
ImageExportDirectory.AddressOfNames = (ULONG_PTR)TableName - (ULONG_PTR)&ImageDosHeader;
ImageExportDirectory.AddressOfNameOrdinals = (ULONG_PTR)OrdinalTable - (ULONG_PTR)&ImageDosHeader;
ImageExportDirectory.NumberOfFunctions = sizeof(ExportTable) / sizeof(ExportTable[0]);
ImageExportDirectory.AddressOfFunctions = (ULONG_PTR)FunctionTable - (ULONG_PTR)&ImageDosHeader;
/* Fill freeldr.sys export table */
for (i = 0; i < sizeof(ExportTable) / sizeof(ExportTable[0]); i++)
{
TableName[i] = PaToVa((PVOID)((ULONG_PTR)ExportTable[i].Name - (ULONG_PTR)&ImageDosHeader));
OrdinalTable[i] = i;
FunctionTable[i] = (ULONG)((ULONG_PTR)ExportTable[i].Function - (ULONG_PTR)&ImageDosHeader);
}
/* Create full ntbootdd.sys path */
MachDiskGetBootPath(NtBootDdPath, sizeof(NtBootDdPath));
strcat(NtBootDdPath, "\\NTBOOTDD.SYS");
@ -1677,9 +1594,10 @@ LoadBootDeviceDriver(VOID)
if (!Status)
return EIO;
/* Add freeldr.sys to list of loaded executables, it repaces scsiport.sys */
/* Add the PE part of freeldr.sys to the list of loaded executables, it
contains Scsiport* exports, imported by ntbootdd.sys */
Status = WinLdrAllocateDataTableEntry(&LoaderBlock, "scsiport.sys",
"FREELDR.SYS", &ImageDosHeader, &FreeldrDTE);
"FREELDR.SYS", &__ImageBase, &FreeldrDTE);
if (!Status)
{
RemoveEntryList(&BootDdDTE->InLoadOrderLinks);