finstext2.h

ReactOS是一些高手根据Windows XP的内核编写出的类XP。内核实现机理和API函数调用几乎相同。甚至可以兼容XP的程序。喜欢研究系统内核的人可以看一看。

#ifndef __FINSTEXT2_H
#define __FINSTEXT2_H


#define PACKED			__attribute__((packed))

typedef struct
{
	unsigned char	JmpBoot[3];
	unsigned char	BootDrive;
	//unsigned char	BootPartition;
	//unsigned char	SectorsPerTrack;
	//unsigned short	NumberOfHeads;
	//unsigned long	Reserved1;
	//unsigned long	Reserved2;

	unsigned long	Ext2VolumeStartSector;	// Start sector of the ext2 volume
	unsigned long	Ext2BlockSize;			// Block size in sectors
	unsigned long	Ext2BlockSizeInBytes;	// Block size in bytes
	unsigned long	Ext2PointersPerBlock;	// Number of block pointers that can be contained in one block
	unsigned long	Ext2GroupDescPerBlock;	// Number of group descriptors per block
	unsigned long	Ext2FirstDataBlock;		// First data block (1 for 1024-byte blocks, 0 for bigger sizes)
	unsigned long	Ext2InodesPerGroup;		// Number of inodes per group
	unsigned long	Ext2InodesPerBlock;		// Number of inodes per block

	unsigned char	BootCodeAndData[459];

	unsigned char	BootPartition;
	unsigned short	BootSignature;

} PACKED EXT2_BOOTCODE, *PEXT2_BOOTCODE;



#endif // defined __FINSTEXT2_H