Re: In-kernel Authentication Tokens (PAGs)

[Chris Wright <chrisw@osdl.org>]

* David Howells (dhowells@redhat.com) wrote:
> You might want to look at this patch. It's what I've come up with to support
> kafs, but it's general, and should work for anything. It's been built along
> Linus's guidelines, and has Linus's approval, contingent on something actually
> using it fully.
> 
> You can use the session keyring number as a PAG ID if you wish.
> 
> I've a sample aklog program (key submission) should you be interested.

I'd be intereseted.  BTW, I just took a brief look and had a quick
question.

> +	if (bprm->e_uid != current->uid)
> +		suid_keys(current);
> +	exec_keys(current);
> +

would the security module be expected update/revoke keys if the thing changes
security domains on exec?

>  	task_lock(current);
>  	unsafe = unsafe_exec(current);
>  	security_bprm_apply_creds(bprm, unsafe);

thanks,
-chris
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