Re: [ANNOUNCE] UidBind LSM 0.1

From: Casey Schaufler
Date: Tue Apr 24 2007 - 09:52:28 EST

--- Roberto De Ioris <roberto@xxxxxxxx> wrote:

> Hi all,
> this is a very simple module that allows bind() to tcp/udp port (>=1024)
> only for the uids defined in a configfs tree.

Would you be so kind as to cross post to linux-security-module?
Methinks that you might get additional valuable feedback there.

> It is a first version, it only works for PF_INET sockets and makes no
> difference between tcp and udp (i am working on this)
> For (little) more info see
> Patch attached is for vanilla

It would be correct to return -EACCES rather than -EPERM in the
access denial case. EACCES indicates that an access control decision
failed, while EPERM indicates that use of a privileged operation
was attempted while not possessing appropriate privilege.

Casey Schaufler
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