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osmo-hnbgw
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Osmocom Home NodeB Gateway, for attaching femtocells to the 3G CN (OsmoMSC, OsmoSGSN) https://osmocom.org/projects/osmohnbgw
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Neels Hofmeyr c17b2850b7 rua: validate correct RUA ctx state per RUA message type 
It helps in a pretty complex situation seen in the field.
A third-party MSC releases SCCP in one fell swoop, not waiting for the
Iu Release Complete to come back from RAN as the specs would suggest.

The result is this odd sequence, where late rx of RUA Disconnect
actually causes a new SCCP connection to be established and torn down
again:

    RAN                 HNBGW                MSC
     |--active-RUA-ctx----|--active-sccp------|
     |                    |<--IU-Release-Cmd--|
     |<--IU-Release-Cmd---|                   |
     |                    |<--SCCP-RLSD-------| (too soon)
     |...<-RUA-Disconnect-|                   x (the consequence)
     |                    x
     |--RUA-Disconnect--->|                     (IU Release Complete)
     x              <create-new-ctx>
                          |-SCCP-CR---------->|
                          |-IU-Release-Compl->|
                          |<--CREF------------|
                          x                   x

This patch is a relatively simple practical improvement of above
situation that is logically obvious:

Validate the correct message type for creating a new RUA-to-SCCP
context: RUA Connect.

That means the IU Release Complete is ignored:

    RAN                 HNBGW                MSC
     |--active-RUA-ctx----|--active-sccp------|
     |                    |<--IU-Release-Cmd--|
     |<--IU-Release-Cmd---|                   |
     |                    |<--SCCP-RLSD-------| (too soon)
     |...<-RUA-Disconnect-|                   x (the consequence)
     |                    x
     |--RUA-Disconnect--->|                     (IU Release Complete)
     x                 <error>
                          x

Related: SYS#6602
Change-Id: Ie359fcada98fb19f56015cf462e6d8c039f5fce5
 		2023-12-12 02:02:08 +01:00
contrib systemd,manual: set LimitNOFILE=65536 2023-12-03 02:21:00 +00:00
debian Bump version: 1.4.0.109-89fe-dirty → 1.5.0 2023-09-12 17:18:44 +02:00
doc systemd,manual: set LimitNOFILE=65536 2023-12-03 02:21:00 +00:00
include cfg: add 'hnbgw' / 'plmn MCC MNC' 2023-06-21 04:16:13 +02:00
src rua: validate correct RUA ctx state per RUA message type 2023-12-12 02:02:08 +01:00
tests tests/ranap_rab_ass: Test RAB-Ass.req with X.213 IPv4 address len=7 2023-11-27 14:51:13 +00:00
.gitignore Initial structure + import code from osmo-iuh.git 2022-01-04 19:48:52 +01:00
.gitreview Initial structure + import code from osmo-iuh.git 2022-01-04 19:48:52 +01:00
AUTHORS Initial structure + import code from osmo-iuh.git 2022-01-04 19:48:52 +01:00
COPYING Initial structure + import code from osmo-iuh.git 2022-01-04 19:48:52 +01:00
Makefile.am Initial structure + import code from osmo-iuh.git 2022-01-04 19:48:52 +01:00
README.md update URLs (git -> https; gitea) 2022-06-18 14:02:41 +02:00
TODO-RELEASE tests/ranap_rab_ass: Test RAB-Ass.req with X.213 IPv4 address len=7 2023-11-27 14:51:13 +00:00
configure.ac Bump version: 1.4.0.109-89fe-dirty → 1.5.0 2023-09-12 17:18:44 +02:00
git-version-gen Initial structure + import code from osmo-iuh.git 2022-01-04 19:48:52 +01:00
osmoappdesc.py copyright: fix typo: sysmocom s/s.m.f.c./s.f.m.c./ GmbH 2023-05-19 08:49:02 +00:00

README.md

osmo-hnbgw - Osmocom hNodeB Implementation

This repository contains a C-language implementation of a 3G Home NodeB Gateway (OsmoHNBGW). It is part of the Osmocom Open Source Mobile Communications project.

You can use it to interface Iuh-speaking Home NodeB (HnodeB), such as osmo-hnodeb or ip.access nano3g, to Iu-speaking MSCs and SGSNs.

Homepage

The official homepage of the project is https://osmocom.org/projects/osmohnbgw/wiki

GIT Repository

You can clone from the official osmo-hnbgw.git repository using

git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-hnbgw

There is a web interface at https://gitea.osmocom.org/cellular-infrastructure/osmo-hnbgw

Documentation

User Manuals and VTY reference manuals are [optionally] built in PDF form as part of the build process.

Pre-rendered PDF version of the current "master" can be found at User Manual as well as the VTY Reference Manual

Mailing List

Discussions related to osmo-hnbgw are happening on the openbsc@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/openbsc for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.

Contributing

Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards

We us a gerrit based patch submission/review process for managing contributions. Please see https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit for more details

The current patch queue for osmo-hnbgw can be seen at https://gerrit.osmocom.org/#/q/project:osmo-hnbgw+status:open