Silence the error log for PCSTATE.indication prims.
When running the HNBGW_Tests.ttcn suite, the osmo-hnbgw LOGL_ERROR is
spammed with messages like:
DLSCCP ERROR unsupported SCCP user primitive N-PCSTATE.indication (sccp_scmg.c:298)
Add this prim to scmg_prim_cb() to just log on DEBUG that it is ignored.
Related: OS#5679
Change-Id: I5fd38afea94f48ed2f2fcd2d9baa8ec22a571b6b
A DUPU message in SUA and M3UA indicates the unavailability of
a (MTP-level) user, i.e. the entire SCCP, ISUP, ... is not available.
If we receive a DUPU (destination user part unavailable) message in ASP
role, then we must
* distribute it to any other ASPs for which we operate in SG mode
* pass it as MTP-STATUS.ind to SCCP, which can then generates
N-PCSTATE.ind to the SCCP User
Change-Id: I1559ed0f761a8495b222df48c6bd43798e220471
When a SSP (Subsystem Prohibited) or SSA (Subsystem Available) SCMG
message is received, we must generate the respective primitives towards
the SCCP user.
Change-Id: I149166a25113f5d3e3536f9297bf89ff3139b9e3
Unlike M3UA, in SUA a DUNA/DAVA message can contain not just the point
code that became available / unavailable, but it can also include a SSN.
In that case, it is just the SSN that became available/unavailable, and
not the entire point code. Hence, a N-STATE.ind and not a N-PCSTATE.ind
must be delivered to the SCCP user.
Change-Id: Ie9a45b905bc17e7b695e15fe12ba4bbadcd032bf
SCMG (SCCP Management) is a special sub-system that normally resides
at SSN=1. In Osmocom we so far ignored its existence. However,
in terms of interop with other implementation, we should implement
at least some basic features.
The only procedure implemented in this initial commit is the response
to an incoming SST (Subsystem Test) message. If we don't respond to
this message, a remote SCCP entity could assume the SSN is dead on
our side, rendering communication impossible.
Change-Id: I04b162476f7652ef0540b5ea7299e9447efd1d09
* add N-PCSTATE.ind and N-STATE.ind definitions to SCCP user SAP
* add minimal SCMG (SCCP Management) and LBCS (Local Broadcast)
* generate MTP-PAUSE.ind/MTP-RESUME.ind based on received xUA DUNA/DAVA
* generate N-PCSTATE.ind towards the local SCCP users
Change-Id: Idb799f7d7ab329ad12f07b7cbe6336da0891ae92
Related: OS#2623, OS#3403, OS#4701
Neels Hofmeyr
Oliver Smith
Harald Welte