Hi Andreas,

From: Andreas Schultz <aschultz@tpip.net>
Date: Monday, March 27, 2017 at 1:30 AM
To: Jiannan Ouyang <ouyangj@fb.com>
Cc: osmocom-net-gprs <osmocom-net-gprs@lists.osmocom.org>, Anoop Singh Tomar <anooptomar@fb.com>, Amar Padmanabhan <amarpadmanabhan@fb.com>
Subject: Re: allow gtp tunnel updating in libgtpnl: gtp_add_tunnel()

> The correct repository for libgtnl is: http://git.osmocom.org/libgtpnl/, my github tree of osmo-ggsn is outdated and shouldn't

> be used.

Thanks for letting me know.

> A gtp_update_tunnel that supports changing any the hash keys would have to set the NLM_F_REPLACE flag.

> That is currently not supported by the kernel implementation and libgtnl is not setting that flag.

> I found an old, untested, and most likely incomplete version of an update pdp implementation for the

> kernel in my repository at https://github.com/RoadRunnr/osmo-ggsn/commit/398199135a6009dcbd421d7a330a5af2d36dda8d

> You are welcome to forward port, fix, test, and submit that to the kernel.

This reference implementation is very helpful, thank you!

Regards,

-Jiannan