SimpelDateisystem (sfs) is a FUSE file system that supports a hierarchical tree structure. You can create, remove, and navigate through directories; and create and delete files, although read and write functionality is not implemented.

Note that SimpelDateisystem was tested exclusively on CentOS 5, and there are certain hard-coded accomodations for it, like returning dummy values for "~/.Trash". We suggest debug-mounting through montiere.sh and testing file creation through simplecreate.py.

Metadata for the whole file system is contained within the "superblock", which calculates how many "inodes" the disk space can accomodate. An inode, synonymous with fileControlBlock in our implementation, contains the relative file name; last date modified; parent directory, etc.

The most important part of implementing this stat() equivalent for FUSE is setting the correct "mode": for files, 0666 gives read and write permission to everyone, while 0755 gives only the owner read write and execute permission.

Each directory's inode contains an array of pointers to the inodes of the files within its directory. The filler function only accepts relative filenames without slashes.