Project

General

Profile

Actions

Bug #5788

open

Possible regression with TTCN3 8.2.0

Added by daniel 6 days ago. Updated 6 days ago.

Status:
New
Priority:
Normal
Assignee:
-
Target version:
-
Start date:
11/23/2022
Due date:
% Done:

0%

Spec Reference:

Description

In Docker/Jenkins we use TTCN-3 8.0.0 while my Debian machine is at 8.2.0.

When running the ttcn3 gbproxy tests I noticed that some messages that were generated are corrupted:

Wed Nov 23 16:38:01 2022 DGPRS tlv_parser.c:728 NSE(00101/SGSN)-BVC(20011/??) BSSGP DL-UNITDATA: TLV parser error -2

One example is TC_dl_unitdata where the LLC_PDU seems to be encoded as bf 02 00 instead of 0e 80 (see the first DL_UNITDATA in each pcap trace for comparison no.969 vs. no.1885).


Files

GBProxy_Tests.TC_dl_unitdata.pcapng.gz GBProxy_Tests.TC_dl_unitdata.pcapng.gz 806 KB Working TC_dl_unitdata daniel, 11/23/2022 03:34 PM
GBProxy_Tests.TC_dl_unitdata.pcapng.gz GBProxy_Tests.TC_dl_unitdata.pcapng.gz 72.1 KB Failing TC_dl_unitdata daniel, 11/23/2022 03:39 PM
Actions #1

Updated by fixeria 6 days ago

Hi Daniel,

I am using v8.2.0 since it was tagged (in May 2022). No regressions seen so far.
I am mostly running ttcn3-{bsc,bts,pcu}-tests, will try running the gbproxy tests.

Actions #2

Updated by laforge 6 days ago

FYI, I can reproduce the issue 1:1 on my debian unstable with titan 8.2.0

Actions #3

Updated by fixeria 6 days ago

fixeria wrote in #note-1:

I am mostly running ttcn3-{bsc,bts,pcu}-tests, will try running the gbproxy tests.

Problem reproduced.

Actions #4

Updated by fixeria 6 days ago

fixeria wrote in #note-1:

I am using v8.2.0 since it was tagged (in May 2022). No regressions seen so far.

The TC_dl_unitdata passes for me after upgrading titan to v8.3.0 (95e50c02f).

While looking into this, I submitted a couple of patches:

https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/30285 library/Osmocom_Gb_Types: fix wrong IEI in ts_BSSGP_LLC_PDU [NEW]
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/30286 {sgsn,gbproxy}: do not link non-existent TCCConversion.hh [NEW]

Actions

Also available in: Atom PDF

Add picture from clipboard (Maximum size: 48.8 MB)