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SubjectRe: [PATCH] Secure user authentication for NFS using RPCSEC_GSS [0/6]
On Mon, Jan 13, 2003 at 01:12:50AM +0100, Trond Myklebust wrote:
> Our wish is to provide basic kernel RPC client support for the generic
> RPCSEC_GSS protocol, and for communicating with a userland daemon that
> does the actual the security context negotiation with the RPC server.
> Communication between kernel and userland is done over a set of named
> pipes (in much the same way as the CODA upcall/downcall is done) in a
> private ramfs-like filesystem.

Well, AFS also wants Kerb [but a weird Kerb4 variant IIRC], but,
OTOH why not do all this authentication and stuff in userspace?

Several other projects through the years have done similar things, where
a userspace daemon handles auth and such, and then passes an fd into
the kernel via ioctl [or write(2)ing fd value to a mini-ramfs VFS node].
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