Re: [bisected] Re: [bug] networking broke, ssh: connect to port22: Protocol error

From: Ingo Molnar
Date: Thu Feb 07 2008 - 06:45:23 EST



* Casey Schaufler <casey@xxxxxxxxxxxxxxxx> wrote:

> > So unlike some other security modules like SELINUX, enabling SMACK
> > breaks un-aware userspace and breaks TCP networking?
> >
> > I dont think that's expected behavior - and i'd definitely like to
> > enable SMACK in automated tests to check for regressions, etc.
>
> As Stephen mentions later, Smack uses CIPSO. sshd does not like any IP
> options because of traceroute, and must be built with that check
> disabled with the current Smack version. I have been looking at using
> unlabeled packets for the "ambient" label, it appears that doing so
> would make life simpler. I will get right on it.

ok - feel free to send me any patches to test.

Ingo
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