This VFS module is part of the samba(7) suite.
The vfs_xattr_tdb VFS module stores Extended Attributes (EAs) in a tdb file. This enables the usage of Extended Attributes on OS and filesystems which do not support Extended Attributes by themselves.
xattr_tdb:file = PATH
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed.