Osmocom code for the Iuh interface (HNBAP, RUA, RANAP) https://osmocom.org/projects/libosmo-ranap
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Neels Hofmeyr 8f2007c1bd gitignore (dummy-cn, testsuite.dir) 7 years ago
asn1 RANAP-PDU-Contents: fix syntax error regarding InitialUE-Message 7 years ago
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pcap Add various RANAP packet captures (pcap files) found on the net 7 years ago
specs add TS 25.412 spec 7 years ago
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move-asn1-header-files.sh move asn1 headers to include/ dir (3/5) 7 years ago


Osmocom Iuh experimentation code
(C) 2015 by Harald Welte <laforge@gnumonks.org>

This code is a playground for implementing something along the lines of
the an Iuh interface of a HNB-GW. The intent is to later integrate this
with OsmoNITB + OsmoSGSN, in order to have 3G capable 'network in the

h1. Building

As external library dependencies, you will need
* libosmocore from git://git.osmocom.org/libosmocore
* libasn1c from git://git.osmocom.org/libasn1c
* libsctp-dev (this is the package name in Debian)

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

autoreconf --install

After that, run the usual

./configure [options]
[sudo] make install

h1. Using

Note: osmo-iuh is in active development (December 2015, January 2016) so below
statements may outdate rapidly.

there's not much to use yet. But 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, so the homeNodeB
should start to establish RUA and RANAP (which we haven't implemented

h1. 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 git://git.osmocom.org/asn1c)
* support for prefixing the generated types (aper-prefix branch of