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gerrit.osmocom.org / libosmo-abis / de41b9a40ba3b6c8c87a4d30b7695a55b56dc68c
commitde41b9a40ba3b6c8c87a4d30b7695a55b56dc68c[log] [tgz]
authorPhilipp Maier <pmaier@sysmocom.de>Wed Apr 19 16:38:58 2023 +0200
committerPhilipp Maier <pmaier@sysmocom.de>Tue Jul 04 14:49:02 2023 +0200
tree636fb2f6fccabeeb2e7809965fc912b6188ed9a6
parenteb2c109deab80911f65ab7fd4c5c49dbbf2df317 [diff]
e1d: reconnect to osmo-e1d after connection loss

When osmo-e1d crashes while a line is in use the client process may
experience not only a lost connection, it may also hang up in an endless
loop that would also spam the logfile. The reason for this is that the
e1d driver in libosmo-abis lacks mechanisms to detect when the
connection to osmo-e1d gets lost.

When osmo-e1d goes down the effects should be similar to those of a
normal connection loss of an e1 line (cable pulled). So let's add an FSM
that takes care of the recovery of the connection when it is lost. Also
make sure that no havoc happens when the connection gets lost.

Related: OS#5983
Change-Id: Iaf4d42c2f009b1d7666e319fabdeb2598aa0b338
1 file changed
tree: 636fb2f6fccabeeb2e7809965fc912b6188ed9a6
  1. contrib/
  2. debian/
  3. include/
  4. m4/
  5. src/
  6. tests/
  7. .gitignore
  8. .gitreview
  9. AUTHORS
  10. configure.ac
  11. COPYING
  12. git-version-gen
  13. libosmoabis.pc.in
  14. libosmotrau.pc.in
  15. Makefile.am
  16. README.md
  17. TODO-RELEASE
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 https://gitea.osmocom.org/osmocom/libosmo-abis

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