vfs_readonly — make a Samba share read only for a specified time period
vfs objects = readonly
This VFS module is part of the samba(7) suite.
The vfs_readonly VFS module marks a share
	as read only for all clients connecting within the configured
	time period. Clients connecting during this time will be denied
	write access to all files in the share, irrespective of ther
	actual access privileges.
This module is stackable.
Only mark the share as read only if the client connection was made between the times marked by the BEGIN and END date specifiers. The syntax of these date specifiers is the same as that accepted by the -d option of GNU date(1).
Mark all shares read only:
        [global]
	vfs objects = readonly
Mark the [backup] share as read only during business hours:
        [backup]
	path = /readonly
	vfs objects = readonly
	readonly:period = readonly:period = "today 9:00","today 17:00"