Re: sysctl to disable protocol stack

[Matt Thomas <matt%3am-software.com@localhost>]

On Dec 9, 2009, at 1:34 PM, Matthias Drochner wrote:

> 
> kre%munnari.OZ.AU@localhost said:
>> X-            if (pffinddomain(dom) == 0)
>> X+            if ((dp = pffinddomain(dom)) == 0)
>> X+                    return EAFNOSUPPORT;
>> X+            if (dom_disabled(dp, DOMAIN_NO_SOCKETS))
>> X                     return EAFNOSUPPORT;
> 
> Why so complicated, adding bloat and runtime overhead?
> The protocols could just be removed from the domsw
> table, so the normal lookup would do it.
> I think this is the way to go because a modular system
> should be able to dynamically load/unload network protocols
> anyway.
> (I had protocol LKMs kind of working years ago when I was
> developing ATM stuff.)

Doesn't help if_xxxsubr.c ...  You really don't want them to
to put packets in the netisr ifqueues.