From 459aa660eb1d8ce67080da1983bb81d716aa5a69 Mon Sep 17 00:00:00 2001 From: Pablo Neira Date: Mon, 9 May 2016 00:55:48 +0200 Subject: gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U) This is an initial implementation of a netdev driver for GTP datapath (GTP-U) v0 and v1, according to the GSM TS 09.60 and 3GPP TS 29.060 standards. This tunneling protocol is used to prevent subscribers from accessing mobile carrier core network infrastructure. This implementation requires a GGSN userspace daemon that implements the signaling protocol (GTP-C), such as OpenGGSN [1]. This userspace daemon updates the PDP context database that represents active subscriber sessions through a genetlink interface. For more context on this tunneling protocol, you can check the slides that were presented during the NetDev 1.1 [2]. Only IPv4 is supported at this time. [1] http://git.osmocom.org/openggsn/ [2] http://www.netdevconf.org/1.1/proceedings/slides/schultz-welte-osmocom-gtp.pdf Signed-off-by: Pablo Neira Ayuso Signed-off-by: David S. Miller --- drivers/net/Kconfig | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/net/Kconfig') diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index befd67df08e1..0c5415b05ea9 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -192,6 +192,23 @@ config GENEVE To compile this driver as a module, choose M here: the module will be called geneve. +config GTP + tristate "GPRS Tunneling Protocol datapath (GTP-U)" + depends on INET && NET_UDP_TUNNEL + select NET_IP_TUNNEL + ---help--- + This allows one to create gtp virtual interfaces that provide + the GPRS Tunneling Protocol datapath (GTP-U). This tunneling protocol + is used to prevent subscribers from accessing mobile carrier core + network infrastructure. This driver requires a userspace software that + implements the signaling protocol (GTP-C) to update its PDP context + base, such as OpenGGSN