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Osmocom library for A-bis (E1/IP) interface
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Harald Welte 78861c0aef Add new TRAU frame sync code 
This code is able to detect and sync against a variety of TRAU
frame sync patterns.  Focus is so far on those patterns present on
16k sub-slots, but 8k sub-slots are expected to be supported soon,
too.

A new codebase for this is required as the old OsmoNITB code had
conflated a 16k sub-slot multiplexer with TRAU frame synchronization,
so there was no way to separate those two parts and hence no way to
support 8k sub-slots.

Change-Id: Ia6fe6228b0b8b9a27999f37ce1115ed5558881ea
 		2020-08-03 02:29:21 +02:00
contrib contrib/jenkins.sh: Test builds with --enable-e1d 2020-08-02 11:25:23 +02:00
debian e1_input: Use osmo_use_count in e1inp_line 2020-07-15 15:39:33 +02:00
include Add new TRAU frame sync code 2020-08-03 02:29:21 +02:00
m4 add missing m4 directory 2011-06-05 18:36:27 +02:00
src Add new TRAU frame sync code 2020-08-03 02:29:21 +02:00
tests Add new TRAU frame sync code 2020-08-03 02:29:21 +02:00
.gitignore contrib: integrate RPM spec 2020-05-19 17:08:23 +02:00
.gitreview Add gerrit settings 2016-12-22 14:06:57 +00:00
AUTHORS add AUTHORS and COPYING files 2011-07-02 17:42:31 +02:00
COPYING add AUTHORS and COPYING files 2011-07-02 17:42:31 +02:00
Makefile.am Makefile.am: EXTRA_DIST: debian, contrib/*.spec.in 2020-05-22 13:27:37 +02:00
README.md README.md: Use <> around all hyperlinks to render them as links in cgit 2017-03-18 17:56:25 +01:00
TODO-RELEASE lapd: Use lapd_dl_init2 instead of deprecated lapd_dl_init 2020-07-15 15:42:19 +02:00
configure.ac e1_input: Use osmo_use_count in e1inp_line 2020-07-15 15:39:33 +02:00
git-version-gen git-version-gen: Check first for new tag format 2018-05-02 19:36:36 +02:00
libosmoabis.pc.in initial commit of libosmo-abis 2011-06-05 18:32:44 +02:00
libosmotrau.pc.in add 'libosmotrau' for TRAU/RTP related code 2011-09-03 15:33:24 +02:00

README.md

libosmo-abis - Osmocom Abis interface library

This repository contains a set of C-language libraries that form the A-bis interface library of Osmocom Open Source Mobile Communications projects such as OpenBSC / OsmoBSC.

Historically, a lot of this code was developed as part of the OpenBSC project, but which are of a more generic nature and thus useful to (at least) other programs that we develop in the sphere of Free Software / Open Source mobile communications.

The libosmo-abis.git repository build multiple libraries:

  • libosmoabis contains some abstraction layer over E1/T1 and IP based ETSI/3GPP A-bis interface. It can use mISDN and DAHDI as underlying driver/hardware.
  • libosmotrau contains routines related to A-bis TRAU frame handling

Homepage

The official homepage of the project is https://osmocom.org/projects/libosmo-abis

GIT Repository

You can clone from the official libosmo-abis.git repository using

git clone git://git.osmocom.org/libosmo-abis.git

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

Documentation

There is no Doxygen-generated API documentation yet for this library. It would be great to some day have it, comparable to libosmocore.

Mailing List

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