ngacl is an effort to give Linux and its filesystems a full blown ACL system, similar to that used by NFSv4 and Windows. With this software, you have 13 different access rights, dynamic inheritance, and audit ACLs. The implementation is filesystem-independent because the kernel parts are an LSM module. In addition, there is a Samba-VFS module that enables you to alter ACLs with the Windows ACL editor.
