Osmocom library for A-bis (E1/IP) interface
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Vadim Yanitskiy d3d04f9edf input/ipaccess: fix regression in ipaccess_bts_handle_ccm()
As stated in a comment in this function, link->line might be NULL:

  /* line might not exist if != bsc||bts */
  struct e1inp_line *line = link->line;

so we cannot use LOGPIL, which dereferences it unconditionally.

Change-Id: Ic26181b580724a70c2af8a224155430902fe4101
Fixes: a87de3cd "input/ipaccess: Always log with context, if we have any"
Related: OS#6379
2024-02-28 16:23:07 +07:00
contrib Bump version: → 1.5.0 2023-09-12 13:39:09 +02:00
debian Bump version: → 1.5.1 2024-01-28 18:04:12 +07:00
include Add support for sending and receiving Sa bits, as well as some line signals 2024-02-12 18:06:25 +00:00
m4 add missing m4 directory 2011-06-05 18:36:27 +02:00
src input/ipaccess: fix regression in ipaccess_bts_handle_ccm() 2024-02-28 16:23:07 +07:00
tests trau_pcu_ericsson: add testvectors for MCS1-MCS8 2023-02-27 10:32:43 +01:00
.gitignore .gitignore: add new trau_{pcu_ericsson,sync} tests 2023-05-05 23:08:34 +07:00
.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 build: include git-version-gen into the release tarball 2024-01-26 23:46:22 +07:00
README.md update git URLs (git -> https; gitea) 2022-06-17 23:12:04 +02:00
TODO-RELEASE Bump version: → 1.5.0 2023-09-12 13:39:09 +02:00
configure.ac trau/osmo_ortp: support building without OrtpMemoryFunctions API 2024-01-08 20:11:36 +07:00
git-version-gen git-version-gen: Check first for new tag format 2018-05-02 19:36:36 +02:00
libosmoabis.pc.in pkgconf: require libosmocore 2022-08-10 16:19:12 +07:00
libosmotrau.pc.in pkgconf: require libosmocore 2022-08-10 16:19:12 +07:00


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


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 https://gitea.osmocom.org/osmocom/libosmo-abis

There is a web interface at https://gitea.osmocom.org/osmocom/libosmo-abis


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.


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