MPPC for Netgraph: Isn't it time?

[Brett Glass]

At 11:40 PM 5/31/2016, Rui Paulo wrote:

>On Tue, 2016-05-31 at 11:55 -0600, Brett Glass wrote:
> > Everyone:
> >
> > Just built a kernel today, and realized that for years I have hadÂ
> > to integrate MPPC compression/encryption (see man page ng_mppc(4))Â
> > for PPP/L2TP/PPTP manually, even though the HiFn patent has longÂ
> > since expired and there's no reason not to include the files in theÂ
> > FreeBSD code base. Could a committer with access to that part ofÂ
> > the tree please import the files mppc.h, mppcc.c, and mppcd.c intoÂ
> > /sys/net so there's no need to find and fetch them every time?
>
>No committer with a sane mind will import code knowing there's a patent
>even if it's expired because TANAL (They Are Not Lawyers).
>
>It's best to contact the FreeBSD Foundation to analyse the status of
>the patent first.

The status of the patent is well known. All Linux distributions now
ship with a version of PoPToP (an inferior PPTP implementation) that
includes MPPC.

--Brett Glass