298 lines
6.8 KiB
C
298 lines
6.8 KiB
C
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/*++
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Copyright (c) 1993 Microsoft Corporation
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Module Name:
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bootlib.h
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Abstract:
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This module is the header file for the common boot library
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Author:
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John Vert (jvert) 5-Oct-1993
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Revision History:
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--*/
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#ifndef _BOOTLIB_
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#define _BOOTLIB_
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#include "ntos.h"
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#include "bldr.h"
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#include "fatboot.h"
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#include "cdfsboot.h"
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#include "ntfsboot.h"
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#include "hpfsboot.h"
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#include "etfsboot.h"
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#include "netboot.h"
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#include "udfsboot.h"
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//
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// Define partition context structure.
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//
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typedef struct _PARTITION_CONTEXT {
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LARGE_INTEGER PartitionLength;
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ULONG StartingSector;
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ULONG EndingSector;
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UCHAR DiskId;
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UCHAR DeviceUnit;
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UCHAR TargetId;
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UCHAR PathId;
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ULONG SectorShift;
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ULONG Size;
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struct _DEVICE_OBJECT *PortDeviceObject;
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} PARTITION_CONTEXT, *PPARTITION_CONTEXT;
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#ifdef EFI_PARTITION_SUPPORT
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#pragma pack (1)
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typedef struct _EFI_PARTITION_TABLE {
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UCHAR Signature[8];
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ULONG Revision;
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ULONG HeaderSize;
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ULONG HeaderCRC;
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ULONG Reserved;
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unsigned __int64 MyLBA;
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unsigned __int64 AlternateLBA;
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unsigned __int64 FirstUsableLBA;
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unsigned __int64 LastUsableLBA;
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UCHAR DiskGuid[16];
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unsigned __int64 PartitionEntryLBA;
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ULONG PartitionCount;
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ULONG PartitionEntrySize;
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ULONG PartitionEntryArrayCRC;
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UCHAR ReservedEnd[1]; // will extend till block size
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} EFI_PARTITION_TABLE, *PEFI_PARTITION_TABLE;
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typedef struct _EFI_PARTITION_ENTRY {
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UCHAR Type[16];
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UCHAR Id[16];
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unsigned __int64 StartingLBA;
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unsigned __int64 EndingLBA;
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unsigned __int64 Attributes;
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UCHAR Name[72];
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} EFI_PARTITION_ENTRY, *PEFI_PARTITION_ENTRY;
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#pragma pack ()
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#define EFI_SIGNATURE "EFI PART"
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#endif // EFI_PARTITION_SUPPORT
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//
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// Define serial port context structure
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//
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typedef struct _SERIAL_CONTEXT {
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ULONG PortBase;
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ULONG PortNumber;
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} SERIAL_CONTEXT, *PSERIAL_CONTEXT;
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//
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// Define drive context structure (for x86 BIOS)
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//
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typedef struct _DRIVE_CONTEXT {
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BOOLEAN IsCd;
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UCHAR Drive;
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UCHAR Sectors; // 1 - 63
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USHORT Cylinders; // 1 - 1023
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USHORT Heads; // 1 - 256
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BOOLEAN xInt13;
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#if defined(_IA64_)
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ULONGLONG DeviceHandle;
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#endif // IA64
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} DRIVE_CONTEXT, *PDRIVE_CONTEXT;
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//
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// Define Floppy context structure
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//
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typedef struct _FLOPPY_CONTEXT {
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ULONG DriveType;
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ULONG SectorsPerTrack;
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UCHAR DiskId;
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} FLOPPY_CONTEXT, *PFLOPPY_CONTEXT;
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//
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// Define keyboard context structure
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//
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typedef struct _KEYBOARD_CONTEXT {
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BOOLEAN ScanCodes;
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} KEYBOARD_CONTEXT, *PKEYBOARD_CONTEXT;
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//
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// Define Console context
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//
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typedef struct _CONSOLE_CONTEXT {
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ULONG ConsoleNumber;
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} CONSOLE_CONTEXT, *PCONSOLE_CONTEXT;
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//
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// Define EFI open handle context
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//
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typedef struct _EFI_ARC_OPEN_CONTEXT {
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PVOID Handle;
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PVOID DeviceEntryProtocol;
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} EFI_ARC_OPEN_CONTEXT, *PEFI_ARC_OPEN_CONTEXT;
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//
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// Define file table structure.
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//
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typedef struct _BL_FILE_FLAGS {
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ULONG Open : 1;
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ULONG Read : 1;
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ULONG Write : 1;
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ULONG Firmware : 1;
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} BL_FILE_FLAGS, *PBL_FILE_FLAGS;
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#define MAXIMUM_FILE_NAME_LENGTH 32
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typedef struct _BL_FILE_TABLE {
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BL_FILE_FLAGS Flags;
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ULONG DeviceId;
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LARGE_INTEGER Position;
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PVOID StructureContext;
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PBL_DEVICE_ENTRY_TABLE DeviceEntryTable;
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UCHAR FileNameLength;
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CHAR FileName[MAXIMUM_FILE_NAME_LENGTH];
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union {
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NTFS_FILE_CONTEXT NtfsFileContext;
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FAT_FILE_CONTEXT FatFileContext;
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UDFS_FILE_CONTEXT UdfsFileContext;
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CDFS_FILE_CONTEXT CdfsFileContext;
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ETFS_FILE_CONTEXT EtfsFileContext;
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NET_FILE_CONTEXT NetFileContext;
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PARTITION_CONTEXT PartitionContext;
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SERIAL_CONTEXT SerialContext;
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DRIVE_CONTEXT DriveContext;
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FLOPPY_CONTEXT FloppyContext;
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KEYBOARD_CONTEXT KeyboardContext;
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CONSOLE_CONTEXT ConsoleContext;
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EFI_ARC_OPEN_CONTEXT EfiContext;
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} u;
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} BL_FILE_TABLE, *PBL_FILE_TABLE;
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extern BL_FILE_TABLE BlFileTable[BL_FILE_TABLE_SIZE];
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//
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// Context structure for our Decompression pseudo-filesystem
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// (filter on top of other FS)
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//
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typedef struct _DECOMP_STRUCTURE_CONTEXT {
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//
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// File information from the original file system.
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//
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FILE_INFORMATION FileInfo;
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} DECOMP_STRUCTURE_CONTEXT, *PDECOMP_STRUCTURE_CONTEXT;
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//
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// Define generic filesystem context area.
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//
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// N.B. An FS_STRUCTURE_CONTEXT structure is temporarily used when
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// determining the file system for a volume. Once the file system
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// is recognized, a file system specific structure is allocated from
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// the heap to retain the file system structure information.
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//
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typedef union {
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UDFS_STRUCTURE_CONTEXT UdfsStructure;
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CDFS_STRUCTURE_CONTEXT CdfsStructure;
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FAT_STRUCTURE_CONTEXT FatStructure;
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HPFS_STRUCTURE_CONTEXT HpfsStructure;
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NTFS_STRUCTURE_CONTEXT NtfsStructure;
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#if defined(ELTORITO)
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ETFS_STRUCTURE_CONTEXT EtfsStructure;
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#endif
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NET_STRUCTURE_CONTEXT NetStructure;
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DECOMP_STRUCTURE_CONTEXT DecompStructure;
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} FS_STRUCTURE_CONTEXT, *PFS_STRUCTURE_CONTEXT;
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//
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//
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// N.B. We can speed up the boot time, by not
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// querying the device for all the possible file systems
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// for every open call. This saves approximately 30 secs
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// on CD-ROM / DVD-ROM boot time. To disable this feature
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// just undef CACHE_DEVINFO in bldr.h
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//
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//
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#ifdef CACHE_DEVINFO
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//
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// Device ID to File System information cache.
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//
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// N.B. For removable media its assumed that the device will
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// be closed using ArcClose(...) before using the new media.
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// This close call will invalidate the cached entry as
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// ArcClose(...) will be mapped to ArcCacheClose(...)
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//
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typedef struct _DEVICE_TO_FILESYS {
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ULONG DeviceId;
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PFS_STRUCTURE_CONTEXT Context;
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PBL_DEVICE_ENTRY_TABLE DevMethods;
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} DEVICE_TO_FILESYS, * PDEVICE_TO_FILESYS;
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extern DEVICE_TO_FILESYS DeviceFSCache[BL_FILE_TABLE_SIZE];
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#endif // CACHE_DEVINFO
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#ifdef EFI_PARTITION_SUPPORT
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typedef
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BOOLEAN
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(*PGPT_READ_CALLBACK)(
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IN ULONGLONG StartingLBA,
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IN ULONG BytesToRead,
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IN OUT PVOID Context,
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OUT PVOID OutputData
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);
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BOOLEAN
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BlIsValidGUIDPartitionTable(
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IN UNALIGNED EFI_PARTITION_TABLE *PartitionTableHeader,
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IN ULONGLONG LBAOfPartitionTable,
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IN PVOID Context,
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IN PGPT_READ_CALLBACK DiskReadFunction
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);
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UNALIGNED EFI_PARTITION_ENTRY *
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BlLocateGPTPartition(
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IN UCHAR PartitionNumber,
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IN UCHAR MaxPartitions,
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IN PUCHAR ValidPartitionCount OPTIONAL
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);
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ARC_STATUS
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BlOpenGPTDiskPartition(
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IN ULONG FileId,
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IN ULONG DiskId,
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IN UCHAR PartitionNumber
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);
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ARC_STATUS
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BlGetGPTDiskPartitionEntry(
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IN ULONG DiskNumber,
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IN UCHAR PartitionNumber,
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OUT EFI_PARTITION_ENTRY UNALIGNED **PartitionEntry
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);
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//
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// EFI partition table buffer
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//
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extern UNALIGNED EFI_PARTITION_ENTRY EfiPartitionBuffer[128];
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#endif // EFI_PARTITION_SUPPORT
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#endif _BOOTLIB_
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