Osmocom Cell Broadcast Centre https://osmocom.org/projects/osmo-cbc
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Pau Espin d5c0b73f00 Bump version: → 0.4.0 4 months ago
contrib cbc-apitool: print usage instead of crashing if no subcmd passed 4 months ago
debian Bump version: → 0.4.0 4 months ago
doc Introduce logging category smscb 4 months ago
include Propagate error to caller when tx cbsp/sbcap Write-Replace-Req fails 4 months ago
src libosmo-sbcap: add -no-undefined to libosmo_sbcap_la_LDFLAGS 4 months ago
tests Move ASN1C enc/dec logging to its own category 4 months ago
.checkpatch.conf checkpatch.conf: ignore sbcap generated files 5 months ago
.gitignore libosmo-sbcap.pc.in: new file 5 months ago
.gitreview gitreview: add new file 5 months ago
COPYING Add COPYING file with AGPLv3 license text 2 years ago
Makefile.am libosmo-sbcap.pc.in: new file 5 months ago
README.md update git URLs (git -> https; gitea) 6 months ago
cbc.schema.json bring JSON schema in sync with reality 2 years ago
configure.ac Add initial SBc-AP support to osmo-cbc 5 months ago
git-version-gen Initial (building) start of OsmoCBC (Cell Broadcast Centre) 4 years ago
libosmo-sbcap.pc.in libosmo-sbcap.pc.in: new file 5 months ago
move-asn1-header-files.sh Add sbcap library 5 months ago
smscb.schema.json bring JSON schema in sync with reality 2 years ago


osmo-cbc - Osmocom Cell Broadcast Centre

This repository contains a C-language implementation of a minimal 3GPP Cell Broadcast Centre (CBC). It is part of the Osmocom Open Source Mobile Communications project.

A Cell Broadcast Centre is the central network element of a cellular network for distribution of Cell Broadcast and Emergency messages.

This code implements

  • the CBSP protocol on the CBC-BSC interface
  • a custom HTTP/REST based interface for external users to create/delete CBS messages

We plan to add support for the following features in the future:

  • the SABP protocol on the CBC-RNC (or CBC-HNBGW) interface for UMTS support
  • the SBcAP protocol on the CBC-MME interface for LTE support


The official homepage of the project is https://osmocom.org/projects/osmo-cbc/wiki

GIT Repository

You can clone from the official osmo-cbc.git repository using

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

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


User Manuals and VTY reference manuals are [optionally] built in PDF form as part of the build process.

Pre-rendered PDF version of the current "master" can be found at User Manual as well as the VTY Reference Manual for osmo-cbc

Mailing List

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