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Date:      Thu, 20 Jan 2000 15:35:02 -0800
From:      Alfred Perlstein <bright@cygnus.rush.net>
To:        Brian Somers <brian@Awfulhak.org>
Cc:        des@FreeBSD.ORG, hackers@FreeBSD.ORG
Subject:   Re: ioctl(... TUNSLMODE ...)
Message-ID:  <20000120153502.A14030@fw.wintelcom.net>
In-Reply-To: <200001201939.TAA01260@hak.lan.Awfulhak.org>; from brian@Awfulhak.org on Thu, Jan 20, 2000 at 07:39:11PM %2B0000
References:  <200001201939.TAA01260@hak.lan.Awfulhak.org>

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* Brian Somers <brian@Awfulhak.org> [000120 15:30] wrote:
> Hi,
> 
> I know this is a while in coming, but now that I'm looking at getting 
> ppp(8) to talk IPv6 (with the help of some KAME patches), I've looked 
> at how TUNSLMODE is implemented... it doesn't look good to me.
> 
> What's the rationale behind stuffing the entire sockaddr in front of 
> the packet ?  AFAIK the only information of any use is the address 
> family.
> 
> By default, OpenBSD has a u_int32_t in front of every packet (I 
> believe this is unconfigurable), and I think this is about the most 
> sensible thing to do - I don't see that alignment issues will cause 
> problems.
> 
> Alfred, this was originally submitted by you.  Do you have any 
> argument against me changing it to just stuff the address family 
> as a 4-byte network-byte-order quantity there ?
> 
> Any other opinions/arguments ?

No objections, I just did it as an excercise to implement something
in the manpages.

-- 
-Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org]


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