This VFS module is part of the samba(7) suite.
The vfs_worm module controls the writability of files and folders depending on their change time and a adjustable grace period.
If the change time of a file or directory is older than the specified grace period, the write access will be denied, independent of further access controls (e.g. by the filesystem).
worm:grace_period = SECONDS
Deny the write access to files and folders, which are older than five minutes (300 seconds):
[wormshare] m[blue]vfs objects = wormm m[blue]worm:grace_period = 300m
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.