Change notifications for network filesystems

Posted May 30, 2022 9:15 UTC (Mon) by taladar (subscriber, #68407)
In reply to: Change notifications for network filesystems by mtodorov
Parent article: Change notifications for network filesystems

Wouldn't that be difficult for network filesystems in particular. You don't really have uids that are the same across the whole network filesystem scope (server + all clients).

Change notifications for network filesystems

Posted May 30, 2022 11:07 UTC (Mon) by mtodorov (guest, #158788) [Link]

IMHO, from the security point of view, it would be very useful i.e. to know which user is trying to modify /bin/bash on local filesystem. If this is a user named jdoe@localhost, and he is not one of the admins, then Huston we have a problem!

IMNSHO, the network file system's integrity should be the responsibility of the NSF, SMB or other server ...

A process could request (for example) IN_EVENT_UID in the list of events listened to, and the fs driver could reply with EINVAL or perhaps even more distinctive EREMOTE (Object is remote).