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gerrit.osmocom.org / osmo-iuh / a770f6967b1b1ca765251cbafc149d0451335202
commita770f6967b1b1ca765251cbafc149d0451335202[log] [tgz]
authorNeels Hofmeyr <neels@hofmeyr.de>Sun Sep 30 23:35:33 2018 +0200
committerNeels Hofmeyr <neels@hofmeyr.de>Sun Sep 30 23:35:35 2018 +0200
tree1eed2d8dece4b4754cfdfa9d8acd36a246f7333c
parentb876b421e347c1d2346ef69455f8f87088881565 [diff]
fix transport layer addr again, for nano3g

The nano3G sends the RAB Assignment Response's Transport Layer Address in X.213
NSAP padded to 20 bytes (160bit). Do not interpret it as 4-byte IP address,
which currently breaks nano3G voice calls (wrong RTP IP address).

Recent commit I2cd1b2d8e1c1ae707cfc0dc7961a2b31ecdf29e0 fixed decoding of X.213
NSAP that is exactly seven bytes, but broke decoding of the padded version from
the nano3G.

A proper X.213 NSAP decoding would still be more welcome than this patching
back and forth, but this is (another) quick fix without spending too much time
on it.

Related: OS#3420
Change-Id: I0ad8bce6fcfd3829394c39490058c1ab85cdfde3
1 file changed
tree: 1eed2d8dece4b4754cfdfa9d8acd36a246f7333c
  1. asn1/
  2. contrib/
  3. debian/
  4. doc/
  5. include/
  6. pcap/
  7. specs/
  8. src/
  9. .gitignore
  10. .gitreview
  11. configure.ac
  12. COPYING
  13. git-version-gen
  14. libosmo-ranap.pc.in
  15. Makefile.am
  16. move-asn1-header-files.sh
  17. README.md
  18. TODO-RELEASE
README.md

osmo-iuh - Osmocom Iuh and HNB-GW implementation

This repository contains a C-language implementation of the 3GPP Iuh interface, together with a HNB-GW (Home NodeB Gateway). 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 git://git.osmocom.org/osmo-iuh.git

There is a cgit interface at http://git.osmocom.org/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

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

autoreconf --install

After that, run the usual

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

Using

Note: osmo-iuh just left very active development (December 2015, January 2016), so your mileage may vary.

If you run the 'hnbgw' executable, it will open a listening SCTP socket and wait for incoming Iuh connections. It will accept any HNB-REGISTER-REQUEST, and it will establish Iu (over SUA) connections towards the MSC and SGSN.

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: