pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/35375?usp=email )

Change subject: GTP_Emulation: SGSN_ContextRequest: Fix unconditional access to optional field IMSI ......................................................................

GTP_Emulation: SGSN_ContextRequest: Fix unconditional access to optional field IMSI

Change-Id: I254f790aeb7c491200b86bec3c22ae56c452c2df --- M library/GTP_Emulation.ttcn 1 file changed, 14 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/75/35375/1

diff --git a/library/GTP_Emulation.ttcn b/library/GTP_Emulation.ttcn index 4ea293c..6297c4f 100644 --- a/library/GTP_Emulation.ttcn +++ b/library/GTP_Emulation.ttcn @@ -136,7 +136,11 @@ } else if (ischosen(gtp.gtpc_pdu.sgsn_ContextRequest)) { return gtp.gtpc_pdu.sgsn_ContextRequest.imsi.digits; } else if (ischosen(gtp.gtpc_pdu.sgsn_ContextResponse)) { - return gtp.gtpc_pdu.sgsn_ContextResponse.imsi.digits; + if (ispresent(gtp.gtpc_pdu.sgsn_ContextResponse.imsi.digits)) { + return gtp.gtpc_pdu.sgsn_ContextResponse.imsi.digits; + } else { + return omit; + } } else if (ischosen(gtp.gtpc_pdu.forwardRelocationRequest)) { return gtp.gtpc_pdu.forwardRelocationRequest.imsi.digits; } else if (ischosen(gtp.gtpc_pdu.relocationCancelRequest)) {