[OpenAFS-devel] device nodes...

[Love]

Jeffrey Hutzelman <jhutz@cmu.edu> writes:

> > When do you need device-nodes in AFS space ? I would guess that you'll need
> > them in chroot()ed enviroments like for ftpd on solaris. Then you'll need
> > to take lookups of you magic-device-symlinks outside your chroot()ed
> > environment, I no not find that very attractive.
> 
> It doesn't sound like you read my proposal carefully enough.  The point of
> magic-device-symlinks is that they don't refer to device files; they refer
> to entries in a device table loaded at startup.  Entries in this table
> consist of device numbers, owner, group, and mode, and are controlled by
> the system administrator.  There are no extra file accesses involved. 

Yes, you are correct. I failed to get all parts of your proposal. Another
problem with those magic symlinks is that they will break on clients that
have not support for these.
 
> Further, if you're worried about AFS accessing files outside a chroot()'d
> environment, then give up and never use AFS that way.  Unless you use an
> in-memory cache, every AFS file access is going to touch a file outside
> the chroot()'d environment.

file != device node. You can not access other things thru a file, that is
not true for a device node.

Love