Re: ext3 and undeletion

Mike Fedyk
2002-02-25T18:40:01Z

On Mon, Feb 25, 2002 at 01:08:23PM -0500, Richard B. Johnson wrote:
> On Mon, 25 Feb 2002, Dan Maas wrote:
>
> > > but I don't want a Netware filesystem running on Linux, I
> > > want a *native* Linux filesystem (i.e. ext3) that has the
> > > ability to queue deleted files should I configure it to.
> >
> > Rather than implementing this in the filesystem itself, I'd first try
> > writing a libc shim that overrides unlink(). You could copy files to safety,
> > or do anything else you want, before they actually get deleted...
> >
> > Regards,
> > Dan
> >
> Yes... unlink() becomes `mv /path/filename /deleted/path/filename`
> Simple. For idiot users, you can just make such an alias for those

It would be nice if there was a 'deleted' dir per mount point, as that would
keep similar speeds as rm. Also, 'deleted' would probably have to be marked
writable, but not readable and would need a suid binary to read that dir and
limit the output to only list files owned by the calling uid. But that's a
bit too offtopic for this list...

Mike