Extended File System Attributes

Final project for CSCI 3411, Operating and Distributed Systems.
Muhammad Abdul-Rahim
Brandon Bernier

Build Instructions

Apply the patch file <CSCI3411_PATCH> to the Linux 2.6.18 kernel. Place the file in /root/Desktop to begin. In the terminal, change your directory to the one containing your Linux source tree. Then apply the patch with the following command:

patch -p1 < /root/Desktop/CSCI3411_PATCH

In the event that this patch does not succeed for whatever reason, we have also included all of the necessary source code files under the directory. This directory shows the location of each of the necessary files and they can simply be copied into these locations to replace the versions of them already in the kernel. The Makefile would replace the kernel Makefile. Then, the <csci3411_attr> directory must be copied into the main kernel directory. <arch/i386/kernel/syscall_table.S>, <include/asm-i386/unistd.h>, <include/linux/syscalls.h>, and <fs/namei.h> are the files that must be inserted. Doing so will add our implemented support for filesystem attributes.

Usage of New Functionality

The header is provided in the zip as <csci3411_attr.h>
Include this header in any code you write to use the following functions:

csci3411_set_attr( char filename, char attrname, char *attrvalue, int size );

Set the attribute with value of size to file

csci3411_get_attr( char filename, char attrname, char *buffer, int size );

Get the attribute value for of file and store it to of size

csci3411_get_attr_names( char filename, char buffer, int size );

Get all attribute names of file and store it in a colon-separated list to of size
Example output for : Type:Creator:Name:Color

csci3411_remove_attr( char filename, char attrname );

Remove the attribute from file

csci3411_remove_attr_all( char *filename );

Remove all attributes from file

Additional Information

Renaming a file on the system will also rename its attribute folder if an attribute folder exists for the file. This can be done through the command line and also through the Linux GUI environment. This also works when a file is moved to another directory: the attributes directory will move with it.

muhammadabdulrahim / csci3411 Goto Github PK

csci3411's Introduction

Extended File System Attributes

Build Instructions

Usage of New Functionality

csci3411_set_attr( char filename, char attrname, char *attrvalue, int size );

csci3411_get_attr( char filename, char attrname, char *buffer, int size );

csci3411_get_attr_names( char filename, char buffer, int size );

csci3411_remove_attr( char filename, char attrname );

csci3411_remove_attr_all( char *filename );

Additional Information

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muhammadabdulrahim / csci3411 Goto Github PK

csci3411's Introduction

Extended File System Attributes

Build Instructions

Usage of New Functionality

csci3411_set_attr( char *filename, char *attrname, char *attrvalue, int size );

csci3411_get_attr( char *filename, char *attrname, char *buffer, int size );

csci3411_get_attr_names( char *filename, char *buffer, int size );

csci3411_remove_attr( char *filename, char *attrname );

csci3411_remove_attr_all( char *filename );

Additional Information

csci3411's People

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csci3411_set_attr( char filename, char attrname, char *attrvalue, int size );

csci3411_get_attr( char filename, char attrname, char *buffer, int size );

csci3411_get_attr_names( char filename, char buffer, int size );

csci3411_remove_attr( char filename, char attrname );