[PATCH 3rd revision] Add SELinux context support to AUDIT target

[Mr Dash Four]

> The LSM might report and error.  It's up to the caller to figure out
> how to deal with that error.  In this case we want to use the audit
> system so it's up to the audit system how to handle that error.  This
> helper function says the audit system should log it if it work and
> should audit_panic() if it doesn't.  audit_panic() will just call
> printk for most people and can actually panic the box for nutters who
> really care.  In this way we always log the information and if we
> don't it's up to audit how audit handles it's inability to log info.
>
> It's not netfilter's job to handle the error.  It's not the LSMs job
> to know how it's caller wants to handle the error.  Audit is who has
> special requirements and the code to handle the error should be in
> audit code.  (Maybe it wasn't clear, but I think this function should
> go in kernel/audit.c, not the netfilter code.  The netfilter code
> should call this helper function.
>   
Yeah, that's fair enough, though from what I remember 
security_secid_to_secctx already returns a 'yes'/'no' result (I am 
talking from the top of my head here as I am away at present and can't 
check it out to be certain), indicating whether the conversion was 
successful or not.