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- Correctly fill FullDllName for modules loaded by the bootloader. This prevents loading them again later by MmLoadSystemImage().

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svn path=/trunk/; revision=26994
This commit is contained in:
Aleksey Bragin 2007-06-04 15:32:35 +00:00
parent cc07f4e2d7
commit fc0bcf57b3
1 changed files with 38 additions and 8 deletions
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46
reactos/ntoskrnl/ke/freeldr.c
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@ -24,7 +24,7 @@ ULONG MmFreeLdrPageDirectoryEnd;
PROS_LOADER_PARAMETER_BLOCK KeRosLoaderBlock;
BOOLEAN AcpiTableDetected;
/* NT Loader Data. Eats up about 50KB! */
/* NT Loader Data. Eats up about 80KB! */
LOADER_PARAMETER_BLOCK BldrLoaderBlock; // 0x0000
LOADER_PARAMETER_EXTENSION BldrExtensionBlock; // 0x0060
CHAR BldrCommandLine[256]; // 0x00DC
@ -35,12 +35,13 @@ CHAR BldrNtBootPath[64]; // 0x029C
LDR_DATA_TABLE_ENTRY BldrModules[64]; // 0x02DC
MEMORY_ALLOCATION_DESCRIPTOR BldrMemoryDescriptors[64]; // 0x14DC
WCHAR BldrModuleStrings[64][260]; // 0x19DC
NLS_DATA_BLOCK BldrNlsDataBlock; // 0x9BDC
SETUP_LOADER_BLOCK BldrSetupBlock; // 0x9BE8
ARC_DISK_INFORMATION BldrArcDiskInfo; // 0x9F34
CHAR BldrArcNames[32][256]; // 0x9F3C
ARC_DISK_SIGNATURE BldrDiskInfo[32]; // 0xBF3C
// 0xC23C
WCHAR BldrModuleStringsFull[64][260]; // 0x9BDC
NLS_DATA_BLOCK BldrNlsDataBlock; // 0x11DDC
SETUP_LOADER_BLOCK BldrSetupBlock; // 0x11DE8
ARC_DISK_INFORMATION BldrArcDiskInfo; // 0x12134
CHAR BldrArcNames[32][256]; // 0x1213C
ARC_DISK_SIGNATURE BldrDiskInfo[32]; // 0x1413C
// 0x1443C
/* FUNCTIONS *****************************************************************/
@ -60,6 +61,9 @@ KiRosFrldrLpbToNtLpb(IN PROS_LOADER_PARAMETER_BLOCK RosLoaderBlock,
CHAR CommandLine[256];
PARC_DISK_SIGNATURE RosDiskInfo, ArcDiskInfo;
PIMAGE_NT_HEADERS NtHeader;
WCHAR PathToDrivers[] = L"\\SystemRoot\\System32\\drivers\\";
WCHAR PathToSystem32[] = L"\\SystemRoot\\System32\\";
CHAR DriverNameLow[256];
/* First get some kernel-loader globals */
AcpiTableDetected = (RosLoaderBlock->Flags & MB_FLAGS_ACPI_TABLE) ? TRUE : FALSE;
@ -210,6 +214,10 @@ KiRosFrldrLpbToNtLpb(IN PROS_LOADER_PARAMETER_BLOCK RosLoaderBlock,
&MdEntry->ListEntry);
}
/* Lowercase the drivername so we can check its extension later */
strcpy(DriverNameLow, DriverName);
_strlwr(DriverNameLow);
/* Setup the loader entry */
LdrEntry = &BldrModules[i];
RtlZeroMemory(LdrEntry, sizeof(LDR_DATA_TABLE_ENTRY));
@ -222,7 +230,29 @@ KiRosFrldrLpbToNtLpb(IN PROS_LOADER_PARAMETER_BLOCK RosLoaderBlock,
/* Setup driver name */
RtlInitUnicodeString(&LdrEntry->BaseDllName, BldrModuleStrings[i]);
RtlInitUnicodeString(&LdrEntry->FullDllName, BldrModuleStrings[i]);
/* Construct a correct full name */
BldrModuleStringsFull[i][0] = 0;
LdrEntry->FullDllName.MaximumLength = 260 * sizeof(WCHAR);
LdrEntry->FullDllName.Length = 0;
LdrEntry->FullDllName.Buffer = BldrModuleStringsFull[i];
/* Guess the path */
if (strstr(DriverNameLow, ".dll") || strstr(DriverNameLow, ".exe"))
{
UNICODE_STRING TempString;
RtlInitUnicodeString(&TempString, PathToSystem32);
RtlAppendUnicodeStringToString(&LdrEntry->FullDllName, &TempString);
}
else /* .sys */
{
UNICODE_STRING TempString;
RtlInitUnicodeString(&TempString, PathToDrivers);
RtlAppendUnicodeStringToString(&LdrEntry->FullDllName, &TempString);
}
/* Append base name of the driver */
RtlAppendUnicodeStringToString(&LdrEntry->FullDllName, &LdrEntry->BaseDllName);
/* Copy data from Freeldr Module Entry */
LdrEntry->DllBase = ModStart;