From 875e4dc8c3ac1c025f80ecd5531c96c840d42f26 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Thu, 23 Feb 2017 20:26:19 +0100 Subject: [PATCH] gtp-kernel: Fix tunnel creation/removal for GTP Version 1 When Linux Kernel GTP-U support is enabled, OpenGGSN so far only worked with GTPv0,but not with GTPv1, as the TEI values were not correctly configured. This patch fixes the initialzation of the local and remote TEI before using libgtpnl to create a tunnel context in the kernel. Change-Id: I3e953ff5b4ab44c26dbbe20d18b61038fa57ff32 --- ggsn/gtp-kernel.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/ggsn/gtp-kernel.c b/ggsn/gtp-kernel.c index 93dea23..dbe5a9f 100644 --- a/ggsn/gtp-kernel.c +++ b/ggsn/gtp-kernel.c @@ -192,7 +192,10 @@ int gtp_kernel_tunnel_add(struct pdp_t *pdp) gtp_tunnel_set_tid(t, pdp_gettid(pdp->imsi, pdp->nsapi)); gtp_tunnel_set_flowid(t, pdp->flru); } else { - gtp_tunnel_set_tid(t, pdp->teid_gn); /* GTPIE_TEI_DI */ + gtp_tunnel_set_i_tei(t, pdp->teid_own); + /* use the TEI advertised by SGSN when sending packets + * towards the SGSN */ + gtp_tunnel_set_o_tei(t, pdp->teid_gn); } ret = gtp_add_tunnel(gtp_nl.genl_id, gtp_nl.nl, t); @@ -221,7 +224,7 @@ int gtp_kernel_tunnel_del(struct pdp_t *pdp) gtp_tunnel_set_tid(t, pdp_gettid(pdp->imsi, pdp->nsapi)); gtp_tunnel_set_flowid(t, pdp->flru); } else { - gtp_tunnel_set_tid(t, pdp->teid_gn); /* GTPIE_TEI_DI */ + gtp_tunnel_set_i_tei(t, pdp->teid_own); } ret = gtp_del_tunnel(gtp_nl.genl_id, gtp_nl.nl, t);