Changes

s1gw: Split ConnHdlr to its own file

This allows easily separating general routines from test specific code.

Change-Id: I9f8d9afbccd59f3e22649b35d2a7ef75578d051a

s1gw: Add mp_enb_bind_ip module parameter

This allows more easily understanding pcap traces by looking at the
config file to identify the ip addresses.

Change-Id: I294b14e6ef119c17eec22f813d5755279560e0bc

s1gw: initial testenv.cfg

This commit already provides a running setup to run the testsuite,
similar to the one already available in docker-playground.git.

Change-Id: Ib66c3f23355c117302b48fc9ef05cde1920d8739

s1gw: Wait for component to stop before testing IUT for conn refused

Change-Id: I9dcac498766dd4a597cc5827bdb9192e861356c6

s1gw: Immediate stop all components upon ConnHdlr failure

Otherwise it's difficult to see/find in logs stuff like timeouts waiting
for messages, etc.

Change-Id: I8b3b7e9cd61a8ad0d167f20a41c61eac3f245d70

s1gw: Increase failure timeouts to ease debugging

Let the IUT do some stuff before quickly exiting.
In fact, the previous timeouts were a bit tight anyway since several
messages may be required before an answer comes back on the same
interface.

Change-Id: I985511c1a56edb0663826a20bbf27ea34a6c4dcd

s1gw: Fix direction of e-RAB Setup

Change-Id: Idfc3bc0a53d5f966a889b997c3d5a4928297236f

mme: Fix order in eutran_to_geran testcase

The diagram shows that the S1-AP release should happen after the Delete
Session Request/Response (even though all a numbered 13).

The test started failing because a newer open5gs would check/require a
resource that was freed due to an S1 release.

Change-Id: I0d7a388dc8b1a1c13de8f7e3fe7781423fc90868