Coda File System

the protection model

From: <>
Date: Fri, 23 Mar 2007 14:26:45 +0100
Hi all,

reading openafs-devel list, they suffer from the same problems as Coda does
with unsure server identities during anonymous access
and with mixing cached data obtained under different security contexts.

Note that the first problem has been solved for Coda long ago with the modular
clog, where the user has a possibility to fetch an "anonymous" token over a ssl
connection (transparently for the user) thus verifying the corresponding
servers' identity.

(The openafs approach is going to be similar, though the currently proposed one
implies client host administration depending on the cells (realms)
to be used, which contradicts globality)

The "lack of cache isolation" is a problem which Coda apparently inherited
from AFS. We should get rid of it.

Cheers, Rune
Received on 2007-03-23 09:26:34