On Oct 9, 2012, at 10:41 AM, Gleb Smirnoff <gleb...@freebsd.org> wrote:

>  Hello,
> 
>  this is a patch that switches entire IPv4 stack to network
> byte order. That means, that at any layer any module should
> expect IP header in network byte order. Any host byte order
> values can be stored in local variables only and are never stored
> into a packet itself.
> 
>  The new code brings clarity, since a developer doesn't need to
> know which byte order should he/she switch a packet to when
> passing it to a particular function in stack. Also, any new
> function introduced should expect net byte order for a packet
> supplied.
> 
>  The patch has been tested by me on amd64 and ray@ on mips.
> TCP, UDP, ICMP, fragment reassembly and basic packet filtering
> works okay.
> 
> More testing is desired, especially on boxes using some extensions
> as packet filters with policy routing, running gre(4), ipsec(4),
> divert(4), gif(4), multicast routing, stf(4), ng_ipfw(4), SCTP, etc.
> 
> Code reviewing also appreciated.

It's not obvious to me, so does this change the byte order expected in packets 
sent from userland via raw IP sockets?

Guy

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