Ext2.c File Reference

#include <Fs/vfs.h>
#include <Fs/vdisk.h>
#include <Mm/kmalloc.h>
#include <Mm/pmmngr.h>
#include <Drivers/uart.h>
#include <string.h>
#include <aucon.h>
#include <Fs/Ext2/ext2.h>
#include <_null.h>

Include dependency graph for Ext2.c:

Functions
uint32_t	Ext2FindEntry (Ext2Fs *fs, Ext2Inode *dir_inode, const char *name)
int	Ext2ReadInode (Ext2Fs *fs, uint32_t inode_num, Ext2Inode *out_inode)
uint32_t	Ext2ReadBlockIndex (Ext2Fs *fs, uint32_t block_id, uint32_t index)
size_t	Ext2Read (AuVFSNode *node, AuVFSNode *file, uint64_t *buffer, uint32_t length)
AuVFSNode *	Ext2Open (AuVFSNode *fsys, char *path)
AuVFSNode *	Ext2Initialise (AuVDisk *vdisk, char *mountname)

Function Documentation

Ext2FindEntry()

uint32_t Ext2FindEntry	(	Ext2Fs *	fs,
		Ext2Inode *	dir_inode,
		const char *	name
	)

Ext2FindEntry – scans the directory data block for matching name string

Parameters

fs	– file system
dir_inode	– parsed inode structure we are searching inside
name	– the target string we are matching

Ext2Initialise()

AuVFSNode * Ext2Initialise	(	AuVDisk *	vdisk,
		char *	mountname
	)

Ext2Initialise – initialize the ext2 file system

Parameters

vdisk	– Pointer to vdisk structure
mountname	– mount file system name

Ext2Open()

AuVFSNode * Ext2Open	(	AuVFSNode *	fsys,
		char *	path
	)

Ext2Open – acting internal path crawler

Parameters

fsys	– pointer to the file system
path	– path to the file

Ext2Read()

size_t Ext2Read	(	AuVFSNode *	node,
		AuVFSNode *	file,
		uint64_t *	buffer,
		uint32_t	length
	)

Ext2Read – reads data from a file in the ext2 filesystem

Parameters

node	– the filesystem node
file	– the file node to read from
buffer	– the buffer to store read data
length	– the number of bytes to read

Ext2ReadBlockIndex()

uint32_t Ext2ReadBlockIndex	(	Ext2Fs *	fs,
		uint32_t	block_id,
		uint32_t	index
	)

Ext2ReadBlockIndex – reads the block index from a given block

Parameters

fs	– the filesystem
block_id	– the block id to read from
index	– the index within the block to read

Ext2ReadInode()

int Ext2ReadInode	(	Ext2Fs *	fs,
		uint32_t	inode_num,
		Ext2Inode *	out_inode
	)

Ext2ReadInode – reads the inode and updates the provided new inode

Parameters

fs	– the filesystem
inode_num	– inode number to read
out_inode	– inode to place the readings