svn commit: r272886 - in head/sys: netinet netinet6

[John Nielsen]

Bryan-

On Oct 10, 2014, at 12:09 AM, Bryan Venteicher <bryanv at freebsd.org> wrote:

> Author: bryanv
> Date: Fri Oct 10 06:08:59 2014
> New Revision: 272886
> URL: https://svnweb.freebsd.org/changeset/base/272886
> 
> Log:
>  Add context pointer and source address to the UDP tunnel callback
> 
>  These are needed for the forthcoming vxlan implementation. The context
>  pointer means we do not have to use a spare pointer field in the inpcb,
>  and the source address is required to populate vxlan's forwarding table.
> 
>  While I highly doubt there is an out of tree consumer of the UDP
>  tunneling callback, this change may be a difficult to eventually MFC.

I noticed this comment while doing an MFC of vxlan to my local tree. Do you think an MFC to 10-STABLE of this change (and vxlan generally) will be feasible? Is there precedent for ABI changes like this being sanctioned? Could symbol versioning help?

>  Phabricator:	https://reviews.freebsd.org/D383
>  Reviewed by:	gnn
> 
> Modified:
>  head/sys/netinet/sctputil.c
>  head/sys/netinet/udp_usrreq.c
>  head/sys/netinet/udp_var.h
>  head/sys/netinet6/udp6_usrreq.c

Thanks,

JN