osmo-iuh - Osmocom Iuh implementation

This repository contains a C-language implementation of the 3GPP Iuh interface. You can use it to interface Iuh-speaking femtocells/small cells to Iu-speaking MSCs and SGSNs.

It is part of the Osmocom Open Source Mobile Communications project.

Homepage

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

GIT Repository

You can clone from the official libosmocore.git repository using

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

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

Documentation

There is currently no documentation beyond the wiki available on the homepage. We would love to see somebody contributing a manual that can be part of the osmo-gsm-manuals suite.

Mailing List

Discussions related to osmo-iuh 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-iuh can be seen at https://gerrit.osmocom.org/#/q/project:osmo-iuh+status:open

Building

It is generally best to check the wiki for the most up-to-date build instructions.

As external library dependencies, you will need

• libosmocore from https://gitea.osmocom.org/osmocom/libosmocore
• libasn1c from https://gitea.osmocom.org/cellular-infrastructure/libasn1c
• libsctp-dev (this is the package name in Debian)
• libosmo-netif from https://gitea.osmocom.org/osmocom/libosmo-netif
• libosmo-sccp from https://gitea.osmocom.org/osmocom/libosmo-sccp

To bootstrap the build, in the root directory, run:

autoreconf --install

After that, run the usual

./configure [options]
make
[sudo] make install

Regenerating C code from ASN.1 source

In order to re-generate the C source code from the ASN.1 source, you will need a modified asn1c which has the following features:

• APER support (the patch from Eurecom, or its forward-ported version from the aper branch of https://gitea.osmocom.org/osmocom/asn1c)
• Support for prefixing the generated types (aper-prefix branch of https://gitea.osmocom.org/osmocom/asn1c)
• Then in osmo-iuh.git: make -C src/ regen