1 is the latest approved patch-set.
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sgsn: Validate Direct Tunnel Flags DTI=1 is set during UpdatePDPContextReq

Related: SYS#5435
Change-Id: Iadd30318d02fbc304f65840f2299e5ec8b5b08e9
---
M sgsn/BSSGP_ConnHdlr.ttcn
1 file changed, 17 insertions(+), 0 deletions(-)

diff --git a/sgsn/BSSGP_ConnHdlr.ttcn b/sgsn/BSSGP_ConnHdlr.ttcn
index fcadffc..d62f7f8 100644
--- a/sgsn/BSSGP_ConnHdlr.ttcn
+++ b/sgsn/BSSGP_ConnHdlr.ttcn
@@ -696,6 +696,13 @@
 
 function f_process_gtp_ctx_upd_req(inout PdpActPars apars, PDU_GTPC gtpc, integer ran_index := 0) runs on BSSGP_ConnHdlr {
 	var UpdatePDPContextRequestSGSN upd := gtpc.gtpc_pdu.updatePDPContextRequest.updatePDPContextRequestSGSN;
+
+	if (not ispresent(upd.directTunnelFlags) or upd.directTunnelFlags.dTI != '1'B) {
+		Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail,
+				log2str("Rx UpdatePDPCtxReq with Direct Tunnel Flags ",
+					upd.directTunnelFlags, " vs exp DTI=1"));
+	}
+
 	if (ispresent(upd.teidControlPlane.teidControlPlane)) {
 		apars.sgsn_tei_c := upd.teidControlPlane.teidControlPlane;
 	}

