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osmo-sgsn
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Osmocom Serving GPRS Support Node for 2G(GPRS) and 3G(UMTS) https://osmocom.org/projects/osmosgsn
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Oliver Smith a13cc20c98 doc: set state-dir to /var/lib/osmocom/osmo-sgsn 
Be consistent with osmo-ggsn, and set the state dir to
/var/lib/osmocom/osmo-sgsn. Without this patch, it defaults to the
current directory, which means in case of running with the systemd
service, /var/lib/osmocom.

Copy osmo-sgsn.cfg and osmo-sgsn-accept-all.cfg to the tests dir and do
not set the state-dir there. Usually the user that runs the VTY and CTRL
tests is not allowed to write to /var/lib/osmocom. (I've also tried
generating these on the fly, but that breaks in 'make distcheck', as I
would need to write to the source dir or would need to change
osmo-python-tests etc. to read the config file from another directory.)

Related: osmo-ggsn I5b51529b4f8bd2462e54f58a1ce2e2d7c76ff46a
Depends: osmo-python-tests Ic312d546da1c21f68a80b6a188616ef9bc84f4c6
Change-Id: I309807ff0bc125d4653222b2b4ba69ded3bbff70
 		2024-05-27 14:36:01 +02:00
.github Add funding link to github mirror 2024-03-23 17:03:36 +01:00
contrib contrib: remove rpm spec file 2024-05-13 08:39:35 +00:00
debian debian/osmo-gtphub.init: delete 2024-05-22 13:33:52 +02:00
doc doc: set state-dir to /var/lib/osmocom/osmo-sgsn 2024-05-27 14:36:01 +02:00
include gsup: Use new libosmogsm struct osmo_gsup_pdp_info fields 2024-01-29 11:07:03 +01:00
m4 Drop unneeded ax_check_compile_flag.m4 2022-01-11 18:13:46 +01:00
src sgsn/sgsn_vty: create state-dir 2024-05-16 10:50:56 +02:00
tests doc: set state-dir to /var/lib/osmocom/osmo-sgsn 2024-05-27 14:36:01 +02:00
.gitignore Rename bscconfig.h -> config.h 2023-01-11 12:51:38 +01:00
.gitreview .gitreview: update repo url to new location 2017-08-08 17:28:24 +02:00
.mailmap add .mailmap file for mapping git author name/mail in shortlog 2016-08-08 17:40:28 +00:00
AUTHORS move openbsc/* to repos root 2017-08-27 17:40:52 +02:00
COPYING move openbsc/* to repos root 2017-08-27 17:40:52 +02:00
Makefile.am contrib: remove rpm spec file 2024-05-13 08:39:35 +00:00
README.md README.md: Add Forum and Issue Tracker sections 2024-03-23 17:15:07 +01:00
README.vty-tests update git URLs (git -> https; gitea) 2022-06-20 10:15:50 +00:00
TODO-RELEASE gsup: Use new libosmogsm struct osmo_gsup_pdp_info fields 2024-01-29 11:07:03 +01:00
configure.ac contrib: remove rpm spec file 2024-05-13 08:39:35 +00:00
git-version-gen git-version-gen: Don't check for .git directory 2018-07-25 07:03:14 +00:00
osmoappdesc.py doc: set state-dir to /var/lib/osmocom/osmo-sgsn 2024-05-27 14:36:01 +02:00

README.md

osmo-sgsn - Osmocom SGSN Implementation

This repository contains a C-language implementation of a Serving GPRS Support Node (SGSN) for 2.5/2.75G (GPRS/EDGE) and 3G (UMTS). It is part of the Osmocom Open Source Mobile Communications project.

OsmoSGSN exposes

  • Gb towards PCUs (e.g. OsmoPCU): Various GbIP flavors + Gb/FR/E1
  • GTP towards a GGSN (e.g. OsmoGGSN)
  • IuPS over IP towards RNCs / HNBGW (e.g. osmo-hnbgw)
  • The Osmocom typical telnet VTY and CTRL interfaces.
  • The Osmocom typical statsd exporter.
  • GSUP (custom MAP-like protocol) towards osmo-hlr

OsmoSGSN implements

  • GPRS mobility management
  • GPRS session management

Homepage

You can find the OsmoSGSN homepage online at https://osmocom.org/projects/osmosgsn/wiki.

GIT Repository

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

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

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

Documentation

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

Forum

We welcome any osmo-sgsn related discussions in the Cellular Network Infratructure -> 2G/3G Core Network. section of the osmocom discourse (web based Forum).

Mailing List

Discussions related to osmo-sgsn are happening on the osmocom-net-gprs@lists.osmocom.org mailing list, please see https://lists.osmocom.org/postorius/lists/osmocom-net-gprs.lists.osmocom.org/ for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.

Issue Tracker

We use the issue tracker of the osmo-sgsn project on osmocom.org for tracking the state of bug reports and feature requests. Feel free to submit any issues you may find, or help us out by resolving existing issues.

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-sgsn can be seen at https://gerrit.osmocom.org/#/q/project:osmo-sgsn+status:open

History

OsmoSGSN originated from the OpenBSC project, as a separate program within openbsc.git. In 2017, OpenBSC was split in separate repositories, and hence OsmoSGSN was given its own separate git repository.