9fans archive / 2008 / 01 / 510 /    prev next

From: erik quanstrom <quanstro@qua...>
Subject: Re: [9fans] the meaning of group
Date: Mon, 28 Jan 2008 15:33:23 -0500

> 
> it's just the same: is the user a member of a given group or not?
> how membership is established is up to the file server.
> the kernel's scheme is trivial (although it could be more elaborate)
> but that doesn't limit what other file servers do.
> as with the examples you mention, they have only to implement it.
> 

explain how it could be more elaborate.  where do you put the mapping.
the auth server?

as far as i can tell, unless a kernel-generated file has permissions like 0064,
and the owner is eve, the group checking in the kernel doesn't do anything.

i should explain a bit the context.  since we have many folks with a use
for the aoe device on a few cpu servers, it would be useful to allow, say,
the fileserver group sys access to /dev/aoe/*.

- erik