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736 lines
20 KiB
736 lines
20 KiB
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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blload.c
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Abstract:
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This module provides common code for loading things like drivers, NLS files, registry.
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Used by both the osloader and the setupldr.
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Author:
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John Vert (jvert) 8-Oct-1993
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Environment:
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ARC environment
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Revision History:
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--*/
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#include "bldr.h"
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#include "stdio.h"
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ARC_STATUS
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BlLoadSystemHive(
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IN ULONG DeviceId,
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IN PCHAR DeviceName,
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IN PCHAR DirectoryPath,
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IN PCHAR HiveName
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)
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/*++
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Routine Description:
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Loads the registry SYSTEM hive from <BootDirectory>\config\system.
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Allocates a memory descriptor to hold the hive image, reads the hive
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image into this descriptor, and updates the registry pointers in the
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LoaderBlock.
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Arguments:
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DeviceId - Supplies the file id of the device the system tree is on.
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DeviceName - Supplies the name of the device the system tree is on.
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DirectoryPath - Supplies a pointer to the zero-terminated directory path
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of the root of the NT tree.
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HiveName - Supplies the name of the system hive ("SYSTEM" or "SYSTEM.ALT")
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Return Value:
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TRUE - system hive successfully loaded.
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FALSE - system hive could not be loaded.
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--*/
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{
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CHAR RegistryName[256];
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ULONG FileId;
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ARC_STATUS Status;
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FILE_INFORMATION FileInformation;
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ULONG FileSize;
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ULONG ActualBase;
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PVOID LocalPointer;
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LARGE_INTEGER SeekValue;
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ULONG Count;
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PCHAR FailReason;
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//
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// Create the full filename for the SYSTEM hive.
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//
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strcpy(&RegistryName[0], DirectoryPath);
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strcat(&RegistryName[0], HiveName);
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BlOutputLoadMessage(DeviceName, &RegistryName[0]);
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Status = BlOpen(DeviceId, &RegistryName[0], ArcOpenReadOnly, &FileId);
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if (Status != ESUCCESS) {
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FailReason = "BlOpen";
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goto HiveLoadFailed;
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}
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//
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// Determine the length of the registry file
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//
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Status = BlGetFileInformation(FileId, &FileInformation);
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if (Status != ESUCCESS) {
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BlClose(FileId);
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FailReason = "BlGetFileInformation";
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goto HiveLoadFailed;
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}
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FileSize = FileInformation.EndingAddress.LowPart;
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if (FileSize == 0) {
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Status = EINVAL;
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BlClose(FileId);
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FailReason = "FileSize == 0";
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goto HiveLoadFailed;
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}
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//
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// Round up to a page boundary, allocate a memory
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// descriptor, fill in the registry fields in the
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// loader parameter block, and read the registry data
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// into memory.
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//
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Status = BlAllocateDescriptor(LoaderRegistryData,
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0x0,
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(FileSize + PAGE_SIZE - 1) >> PAGE_SHIFT,
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&ActualBase);
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if (Status != ESUCCESS) {
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BlClose(FileId);
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FailReason = "BlAllocateDescriptor";
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goto HiveLoadFailed;
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}
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LocalPointer = (PVOID)(KSEG0_BASE | (ActualBase << PAGE_SHIFT));
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BlLoaderBlock->RegistryLength = FileSize;
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BlLoaderBlock->RegistryBase = LocalPointer;
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//
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// Read the SYSTEM hive into the allocated memory.
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//
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SeekValue.QuadPart = 0;
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Status = BlSeek(FileId, &SeekValue, SeekAbsolute);
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if (Status != ESUCCESS) {
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BlClose(FileId);
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FailReason = "BlSeek";
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goto HiveLoadFailed;
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}
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Status = BlRead(FileId, LocalPointer, FileSize, &Count);
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BlClose(FileId);
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if (Status != ESUCCESS) {
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FailReason = "BlRead";
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goto HiveLoadFailed;
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}
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return(ESUCCESS);
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HiveLoadFailed:
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//
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// The system hive didn't exist, or was corrupt. Pass a NULL
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// pointer into the system, so it gets recreated.
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//
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return(Status);
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}
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ARC_STATUS
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BlLoadNLSData(
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IN ULONG DeviceId,
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IN PCHAR DeviceName,
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IN PCHAR DirectoryPath,
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IN PUNICODE_STRING AnsiCodepage,
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IN PUNICODE_STRING OemCodepage,
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IN PUNICODE_STRING LanguageTable,
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OUT PCHAR BadFileName
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)
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/*++
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Routine Description:
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This routine loads all the NLS data files into one contiguous block of
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memory.
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Arguments:
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DeviceId - Supplies the file id of the device the system tree is on.
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DeviceName - Supplies the name of the device the system tree is on.
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DirectoryPath - Supplies a pointer to the zero-terminated path
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of the directory containing the NLS files.
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AnsiCodePage - Supplies the filename of the ANSI codepage data file.
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OemCodePage - Supplies the filename of the OEM codepage data file.
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LanguageTable - Supplies the filename of the Unicode language case table.
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BadFileName - Returns the filename of the NLS file that was missing
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or invalid. This will not be filled in if ESUCCESS is returned.
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Return Value:
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ESUCCESS is returned if the NLS data was successfully loaded.
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Otherwise, an unsuccessful status is returned.
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--*/
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{
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CHAR Filename[100];
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ULONG AnsiFileId;
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ULONG OemFileId;
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ULONG LanguageFileId;
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ARC_STATUS Status;
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FILE_INFORMATION FileInformation;
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ULONG AnsiFileSize;
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ULONG OemFileSize;
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ULONG LanguageFileSize;
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ULONG TotalSize;
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ULONG ActualBase;
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PVOID LocalPointer;
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LARGE_INTEGER SeekValue;
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ULONG Count;
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BOOLEAN OemIsSameAsAnsi = FALSE;
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//
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// Under the Japanese version of NT, ANSI code page and OEM codepage
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// is same. In this case, we share the same data to save and memory.
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//
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if ( (AnsiCodepage->Length == OemCodepage->Length) &&
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(_wcsnicmp(AnsiCodepage->Buffer,
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OemCodepage->Buffer,
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AnsiCodepage->Length) == 0)) {
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OemIsSameAsAnsi = TRUE;
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}
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//
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// Open the ANSI data file
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//
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sprintf(Filename, "%s%wZ", DirectoryPath,AnsiCodepage);
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BlOutputLoadMessage(DeviceName, Filename);
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Status = BlOpen(DeviceId, Filename, ArcOpenReadOnly, &AnsiFileId);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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Status = BlGetFileInformation(AnsiFileId, &FileInformation);
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BlClose(AnsiFileId);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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AnsiFileSize = FileInformation.EndingAddress.LowPart;
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//
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// Open the OEM data file
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//
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if (OemIsSameAsAnsi) {
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OemFileSize = 0;
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} else {
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sprintf(Filename, "%s%wZ", DirectoryPath, OemCodepage);
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BlOutputLoadMessage(DeviceName, Filename);
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Status = BlOpen(DeviceId, Filename, ArcOpenReadOnly, &OemFileId);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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Status = BlGetFileInformation(OemFileId, &FileInformation);
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BlClose(OemFileId);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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OemFileSize = FileInformation.EndingAddress.LowPart;
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}
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//
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// Open the language codepage file
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//
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sprintf(Filename, "%s%wZ", DirectoryPath,LanguageTable);
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BlOutputLoadMessage(DeviceName, Filename);
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Status = BlOpen(DeviceId, Filename, ArcOpenReadOnly, &LanguageFileId);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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Status = BlGetFileInformation(LanguageFileId, &FileInformation);
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BlClose(LanguageFileId);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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LanguageFileSize = FileInformation.EndingAddress.LowPart;
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//
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// Calculate the total size of the descriptor needed. We want each
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// data file to start on a page boundary, so round up each size to
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// page granularity.
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//
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TotalSize = ROUND_TO_PAGES(AnsiFileSize) +
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ROUND_TO_PAGES(OemFileSize) +
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ROUND_TO_PAGES(LanguageFileSize);
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Status = BlAllocateDescriptor(LoaderNlsData,
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0x0,
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TotalSize >> PAGE_SHIFT,
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&ActualBase);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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LocalPointer = (PVOID)(KSEG0_BASE | (ActualBase << PAGE_SHIFT));
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BlLoaderBlock->NlsData->AnsiCodePageData = LocalPointer;
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BlLoaderBlock->NlsData->OemCodePageData = (PVOID)((PUCHAR)LocalPointer +
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ROUND_TO_PAGES(AnsiFileSize));
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BlLoaderBlock->NlsData->UnicodeCaseTableData = (PVOID)((PUCHAR)LocalPointer +
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ROUND_TO_PAGES(AnsiFileSize) +
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ROUND_TO_PAGES(OemFileSize));
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//
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// Let OemCodePageData point as same location as AnsiCodePageData.
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//
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if( OemIsSameAsAnsi ) {
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BlLoaderBlock->NlsData->OemCodePageData = BlLoaderBlock->NlsData->AnsiCodePageData;
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}
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//
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// Read NLS data into memory
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//
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// open and read ANSI file
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//
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sprintf(Filename, "%s%wZ", DirectoryPath,AnsiCodepage);
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Status = BlOpen(DeviceId, Filename, ArcOpenReadOnly, &AnsiFileId);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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SeekValue.QuadPart = 0;
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Status = BlSeek(AnsiFileId, &SeekValue, SeekAbsolute);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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Status = BlRead(AnsiFileId,
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BlLoaderBlock->NlsData->AnsiCodePageData,
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AnsiFileSize,
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&Count);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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BlClose(AnsiFileId);
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//
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// Open and read OEM file
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//
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if (!OemIsSameAsAnsi) {
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sprintf(Filename, "%s%wZ", DirectoryPath, OemCodepage);
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Status = BlOpen(DeviceId, Filename, ArcOpenReadOnly, &OemFileId);
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
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}
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SeekValue.QuadPart = 0;
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Status = BlSeek(OemFileId, &SeekValue, SeekAbsolute);
|
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if (Status != ESUCCESS) {
|
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goto NlsLoadFailed;
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}
|
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Status = BlRead(OemFileId,
|
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BlLoaderBlock->NlsData->OemCodePageData,
|
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OemFileSize,
|
|
&Count);
|
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if (Status != ESUCCESS) {
|
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goto NlsLoadFailed;
|
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}
|
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BlClose(OemFileId);
|
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}
|
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|
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//
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// open and read Language file
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//
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sprintf(Filename, "%s%wZ", DirectoryPath,LanguageTable);
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Status = BlOpen(DeviceId, Filename, ArcOpenReadOnly, &LanguageFileId);
|
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if (Status != ESUCCESS) {
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goto NlsLoadFailed;
|
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}
|
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SeekValue.QuadPart = 0;
|
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Status = BlSeek(LanguageFileId, &SeekValue, SeekAbsolute);
|
|
if (Status != ESUCCESS) {
|
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goto NlsLoadFailed;
|
|
}
|
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Status = BlRead(LanguageFileId,
|
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BlLoaderBlock->NlsData->UnicodeCaseTableData,
|
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LanguageFileSize,
|
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&Count);
|
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if (Status != ESUCCESS) {
|
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goto NlsLoadFailed;
|
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}
|
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BlClose(LanguageFileId);
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return(ESUCCESS);
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|
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NlsLoadFailed:
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strcpy(BadFileName,Filename);
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return(Status);
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}
|
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|
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ARC_STATUS
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BlLoadOemHalFont(
|
|
IN ULONG DeviceId,
|
|
IN PCHAR DeviceName,
|
|
IN PCHAR DirectoryPath,
|
|
IN PUNICODE_STRING OemHalFont,
|
|
OUT PCHAR BadFileName
|
|
)
|
|
|
|
/*++
|
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|
|
Routine Description:
|
|
|
|
This routine loads the OEM font file for use the HAL display string
|
|
function.
|
|
|
|
Arguments:
|
|
|
|
DeviceId - Supplies the file id of the device the system tree is on.
|
|
|
|
DeviceName - Supplies the name of the device the system tree is on.
|
|
|
|
DirectoryPath - Supplies a pointer to the directory path of the root
|
|
of the NT tree.
|
|
|
|
Fontfile - Supplies the filename of the OEM font file.
|
|
|
|
BadFileName - Returns the filename of the OEM font file that was missing
|
|
or invalid.
|
|
|
|
Return Value:
|
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|
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ESUCCESS is returned if the OEM font was successfully loaded. Otherwise,
|
|
an unsuccessful status is returned and the bad file name is filled.
|
|
|
|
--*/
|
|
|
|
{
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|
|
|
PVOID FileBuffer;
|
|
ULONG Count;
|
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PIMAGE_DOS_HEADER DosHeader;
|
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ULONG FileId;
|
|
FILE_INFORMATION FileInformation;
|
|
CHAR Filename[100];
|
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ULONG FileSize;
|
|
ARC_STATUS Status;
|
|
POEM_FONT_FILE_HEADER FontHeader;
|
|
PIMAGE_OS2_HEADER Os2Header;
|
|
ULONG ScaleFactor;
|
|
RESOURCE_TYPE_INFORMATION UNALIGNED *TableAddress;
|
|
RESOURCE_TYPE_INFORMATION UNALIGNED *TableEnd;
|
|
RESOURCE_NAME_INFORMATION UNALIGNED *TableName;
|
|
|
|
//
|
|
// Open the OEM font file.
|
|
//
|
|
|
|
BlLoaderBlock->OemFontFile = NULL;
|
|
|
|
sprintf(&Filename[0], "%s%wZ", DirectoryPath, OemHalFont);
|
|
BlOutputLoadMessage(DeviceName, &Filename[0]);
|
|
Status = BlOpen(DeviceId, &Filename[0], ArcOpenReadOnly, &FileId);
|
|
if (Status != ESUCCESS) {
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
//
|
|
// Get the size of the font file and allocate a buffer from the heap
|
|
// to hold the font file. Typically this file is about 4kb in length.
|
|
//
|
|
|
|
Status = BlGetFileInformation(FileId, &FileInformation);
|
|
if (Status != ESUCCESS) {
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
FileSize = FileInformation.EndingAddress.LowPart;
|
|
FileBuffer = BlAllocateHeap(FileSize + BlDcacheFillSize - 1);
|
|
if (FileBuffer == NULL) {
|
|
Status = ENOMEM;
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
//
|
|
// Round the file buffer address up to a cache line boundary and read
|
|
// the file into memory.
|
|
//
|
|
|
|
FileBuffer = (PVOID)((ULONG)FileBuffer + BlDcacheFillSize - 1);
|
|
FileBuffer = (PVOID)((ULONG)FileBuffer & ~(BlDcacheFillSize - 1));
|
|
Status = BlRead(FileId,
|
|
FileBuffer,
|
|
FileSize,
|
|
&Count);
|
|
|
|
if (Status != ESUCCESS) {
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
//
|
|
// Attempt to recognize the file as either a .fon or .fnt file.
|
|
//
|
|
// Check if the file has a DOS header or a font file header. If the
|
|
// file has a font file header, then it is a .fnt file. Otherwise,
|
|
// it must be checked for an OS/2 executable with a font resource.
|
|
//
|
|
|
|
Status = EBADF;
|
|
DosHeader = (PIMAGE_DOS_HEADER)FileBuffer;
|
|
if (DosHeader->e_magic != IMAGE_DOS_SIGNATURE) {
|
|
|
|
//
|
|
// Check if the file has a font file header.
|
|
//
|
|
|
|
FontHeader = (POEM_FONT_FILE_HEADER)FileBuffer;
|
|
if ((FontHeader->Version != OEM_FONT_VERSION) ||
|
|
(FontHeader->Type != OEM_FONT_TYPE) ||
|
|
(FontHeader->Italic != OEM_FONT_ITALIC) ||
|
|
(FontHeader->Underline != OEM_FONT_UNDERLINE) ||
|
|
(FontHeader->StrikeOut != OEM_FONT_STRIKEOUT) ||
|
|
(FontHeader->CharacterSet != OEM_FONT_CHARACTER_SET) ||
|
|
(FontHeader->Family != OEM_FONT_FAMILY) ||
|
|
(FontHeader->PixelWidth > 32)) {
|
|
|
|
goto OemLoadExit;
|
|
|
|
} else {
|
|
BlLoaderBlock->OemFontFile = (PVOID)FontHeader;
|
|
Status = ESUCCESS;
|
|
goto OemLoadExit;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Check if the file has an OS/2 header.
|
|
//
|
|
|
|
if ((FileSize < sizeof(IMAGE_DOS_HEADER)) || (FileSize < (ULONG)DosHeader->e_lfanew)) {
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
Os2Header = (PIMAGE_OS2_HEADER)((PUCHAR)DosHeader + DosHeader->e_lfanew);
|
|
if (Os2Header->ne_magic != IMAGE_OS2_SIGNATURE) {
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
//
|
|
// Check if the resource table exists.
|
|
//
|
|
|
|
if ((Os2Header->ne_restab - Os2Header->ne_rsrctab) == 0) {
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
//
|
|
// Compute address of resource table and search the table for a font
|
|
// resource.
|
|
//
|
|
|
|
TableAddress =
|
|
(PRESOURCE_TYPE_INFORMATION)((PUCHAR)Os2Header + Os2Header->ne_rsrctab);
|
|
|
|
TableEnd =
|
|
(PRESOURCE_TYPE_INFORMATION)((PUCHAR)Os2Header + Os2Header->ne_restab);
|
|
|
|
ScaleFactor = *((SHORT UNALIGNED *)TableAddress)++;
|
|
while ((TableAddress < TableEnd) &&
|
|
(TableAddress->Ident != 0) &&
|
|
(TableAddress->Ident != FONT_RESOURCE)) {
|
|
|
|
TableAddress =
|
|
(PRESOURCE_TYPE_INFORMATION)((PUCHAR)(TableAddress + 1) +
|
|
(TableAddress->Number * sizeof(RESOURCE_NAME_INFORMATION)));
|
|
}
|
|
|
|
if ((TableAddress >= TableEnd) || (TableAddress->Ident != FONT_RESOURCE)) {
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
//
|
|
// Compute address of resource name information and check if the resource
|
|
// is within the file.
|
|
//
|
|
|
|
TableName = (PRESOURCE_NAME_INFORMATION)(TableAddress + 1);
|
|
if (FileSize < ((TableName->Offset << ScaleFactor) + sizeof(OEM_FONT_FILE_HEADER))) {
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
//
|
|
// Compute the address of the font file header and check if the header
|
|
// contains correct information.
|
|
//
|
|
|
|
FontHeader = (POEM_FONT_FILE_HEADER)((PCHAR)FileBuffer +
|
|
(TableName->Offset << ScaleFactor));
|
|
|
|
if ((FontHeader->Version != OEM_FONT_VERSION) ||
|
|
(FontHeader->Type != OEM_FONT_TYPE) ||
|
|
(FontHeader->Italic != OEM_FONT_ITALIC) ||
|
|
(FontHeader->Underline != OEM_FONT_UNDERLINE) ||
|
|
(FontHeader->StrikeOut != OEM_FONT_STRIKEOUT) ||
|
|
(FontHeader->CharacterSet != OEM_FONT_CHARACTER_SET) ||
|
|
(FontHeader->PixelWidth > 32)) {
|
|
goto OemLoadExit;
|
|
|
|
} else {
|
|
BlLoaderBlock->OemFontFile = (PVOID)FontHeader;
|
|
Status = ESUCCESS;
|
|
goto OemLoadExit;
|
|
}
|
|
|
|
//
|
|
// Exit loading of the OEM font file.
|
|
//
|
|
|
|
OemLoadExit:
|
|
BlClose(FileId);
|
|
strcpy(BadFileName,&Filename[0]);
|
|
return(Status);
|
|
}
|
|
|
|
|
|
ARC_STATUS
|
|
BlLoadDeviceDriver (
|
|
IN ULONG DeviceId,
|
|
IN PCHAR LoadDevice,
|
|
IN PCHAR DirectoryPath,
|
|
IN PCHAR DriverName,
|
|
IN ULONG DriverFlags,
|
|
OUT PLDR_DATA_TABLE_ENTRY *DriverDataTableEntry
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine loads the specified device driver and resolves all DLL
|
|
references if the driver is not already loaded.
|
|
|
|
Arguments:
|
|
|
|
DeviceId - Supplies the file id of the device on which the specified
|
|
device driver is loaded from.
|
|
|
|
LoadDevice - Supplies a pointer to a zero terminated load device
|
|
string.
|
|
|
|
DirectoryPath - Supplies a pointer to a zero terminated directory
|
|
path string.
|
|
|
|
DriverName - Supplies a pointer to a zero terminated device driver
|
|
name string.
|
|
|
|
DriverFlags - Supplies the driver flags that are to be set in the
|
|
generated data table entry.
|
|
|
|
DriverDataTableEntry - Receives a pointer to the data table entry
|
|
created for the newly-loaded driver.
|
|
|
|
Return Value:
|
|
|
|
ESUCCESS is returned if the specified driver is successfully loaded
|
|
or it is already loaded. Otherwise, and unsuccessful status is
|
|
returned.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
CHAR DllName[256];
|
|
CHAR FullName[256];
|
|
PVOID Base;
|
|
ARC_STATUS Status;
|
|
|
|
//
|
|
// Generate the DLL name for the device driver.
|
|
//
|
|
|
|
strcpy(&DllName[0], DriverName);
|
|
|
|
//
|
|
// If the specified device driver is not already loaded, then load it.
|
|
//
|
|
|
|
if (BlCheckForLoadedDll(&DllName[0], DriverDataTableEntry) == FALSE) {
|
|
|
|
//
|
|
// Generate the full path name of device driver.
|
|
//
|
|
|
|
strcpy(&FullName[0], &DirectoryPath[0]);
|
|
strcat(&FullName[0], DriverName);
|
|
BlOutputLoadMessage(LoadDevice, &FullName[0]);
|
|
Status = BlLoadImage(DeviceId,
|
|
LoaderBootDriver,
|
|
&FullName[0],
|
|
TARGET_IMAGE,
|
|
&Base);
|
|
|
|
if (Status != ESUCCESS) {
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Generate a data table entry for the driver, then clear the entry
|
|
// processed flag. The I/O initialization code calls each DLL in the
|
|
// loaded module list that does not have its entry processed flag set.
|
|
//
|
|
|
|
Status = BlAllocateDataTableEntry(&DllName[0],
|
|
DriverName,
|
|
Base,
|
|
DriverDataTableEntry);
|
|
|
|
if (Status != ESUCCESS) {
|
|
return Status;
|
|
}
|
|
|
|
(*DriverDataTableEntry)->Flags |= DriverFlags;
|
|
|
|
//
|
|
// Scan the import table and load all the referenced DLLs.
|
|
//
|
|
|
|
Status = BlScanImportDescriptorTable(DeviceId,
|
|
LoadDevice,
|
|
&DirectoryPath[0],
|
|
*DriverDataTableEntry);
|
|
|
|
if (Status != ESUCCESS) {
|
|
//
|
|
// Remove the driver from the load order list.
|
|
//
|
|
RemoveEntryList(&(*DriverDataTableEntry)->InLoadOrderLinks);
|
|
return Status;
|
|
}
|
|
|
|
}
|
|
return ESUCCESS;
|
|
}
|