pespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/43261?usp=email )

Change subject: sgsn: Fail in obvious way when unexpected ServiceAccept is received ......................................................................

sgsn: Fail in obvious way when unexpected ServiceAccept is received

since osmo-ttcn3-hacks.git 2ff5b2633a43cecaed75b30b85537d6de3a52c97, the code doesn't expect to receive a ServiceAccept after SecurityCommand, ie. osmo-sgsn is wrong. As a result, tests such as TC_attach_pdp_act_user end up failing with a tGuard timeout waiting for a RAB ASs Req. The result is confusing since osmo-sgsn actually sends the RAB Ass Req, but since the unexpected ServiceAccept is first in the queue, the ttcn3 code doesn't process the RAB Ass Req. Make the test explicitly fail if something else from RAB Ass Req is in the queue preventing reading from it.

Change-Id: Ifbb7da1d02c8bde3406a9dd445c03ed140b8c0a3 --- M sgsn/BSSGP_ConnHdlr.ttcn 1 file changed, 9 insertions(+), 0 deletions(-)

Approvals: pespin: Looks good to me, approved lynxis lazus: Looks good to me, but someone else must approve Jenkins Builder: Verified osmith: Looks good to me, but someone else must approve

diff --git a/sgsn/BSSGP_ConnHdlr.ttcn b/sgsn/BSSGP_ConnHdlr.ttcn index eac01d5..696aa83 100644 --- a/sgsn/BSSGP_ConnHdlr.ttcn +++ b/sgsn/BSSGP_ConnHdlr.ttcn @@ -1053,6 +1053,7 @@ function f_pdp_ctx_act(inout PdpActPars apars, boolean send_recovery := false, integer ran_index := 0, float Tval := 5.0) runs on BSSGP_ConnHdlr { timer T := Tval; + var RANAP_PDU rx_ranap;

f_pdp_tx_ctx_act(apars, ran_index); as_ggsn_gtp_ctx_act_req(apars, send_recovery := send_recovery); @@ -1065,6 +1066,14 @@ send_recovery := send_recovery, ran_index := ran_index); } + [] RAN_CONN.receive(RANAP_PDU:?) -> value rx_ranap { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, + log2str("Rx unexpected RANAP msg ", rx_ranap, " while waiting for RAB ASS REQ")); + } + [] RAN_CONN.receive { + Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, + "Rx unexpected msg while waiting for RAB ASS REQ"); + } [] T.timeout { Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Timeout waiting for RANAP RAB AssReq");