Common library for all Osmocom projects (libosmocore, libosmogsm, libosmovty, libosmogb, libosmosim, libosmousb, ...) https://osmocom.org/projects/libosmocore
Go to file
Harald Welte d06128d17d ns2: Work around AF_PACKET socket ENOBUFS problems
AF_PACKET sockets cannot be written-to using select(), as they
will always return "writable" but then still fail with ENOBUFS.

This also means that we cannot use osmo_wqueue() as it assumes
that a writable socket can actually be written to.

As there's no way to figure out when exactly we can again perform
a successful write, we have no other option but to start a timer
and re-try at a later time.

We will scale that timer based on the estimated duration of transmission
for the just-failed PDU on the line rate of a 31TS E1 Line.

Furthermore, with this patch, we stop queueing anything but signaling
traffic (NS-BVCI=0) or Q.933 LMI.  User data (NS-BVCI != 0) will
instead be dropped in order to avoid buffer-bloat.

Change-Id: I4f79a246236c94175ceffa5f3f556c8931c6bc62
Closes: OS#4995
2021-01-31 12:34:36 +01:00
contrib Integrate libmnl (minimal netlink) library with libosmocore select loop 2020-12-02 21:04:51 +00:00
debian Integrate libmnl (minimal netlink) library with libosmocore select loop 2020-12-02 21:04:51 +00:00
doc merge_doc.xsl: move to osmo-gsm-manuals.git 2018-11-12 14:07:05 +01:00
include gprs_bssgp: agregate RIM related code in gprs_bssgp_rim.c 2021-01-29 21:27:18 +00:00
m4 Add code coverage support 2019-11-30 02:17:23 +00:00
src ns2: Work around AF_PACKET socket ENOBUFS problems 2021-01-31 12:34:36 +01:00
tests gprs_ns2: refactor: ensure all enums have GPRS_NS2_ 2021-01-28 11:56:37 +00:00
utils osmo-ns-dummy: Add simple NS traffic generator 2021-01-30 22:13:03 +01:00
.gitignore gitignore: Ignore *~ 2021-01-05 18:39:37 +01:00
.gitreview add .gitreview 2016-05-19 06:39:13 +00:00
.mailmap Add .mailmap file for mapping mail addresses in shortlog 2016-08-08 13:12:17 +02:00
COPYING add GPL to project source 2010-02-21 09:21:30 +01:00
Doxyfile.codec.in Set HTML_TIMESTAMP to NO to make build reproducible 2019-07-17 11:03:44 +00:00
Doxyfile.coding.in doxygen: enable cross referencing everywhere 2019-02-04 16:43:57 +00:00
Doxyfile.core.in Set HTML_TIMESTAMP to NO to make build reproducible 2019-07-17 11:03:44 +00:00
Doxyfile.ctrl.in doxygen: enable cross referencing everywhere 2019-02-04 16:43:57 +00:00
Doxyfile.gb.in doxygen: enable cross referencing everywhere 2019-02-04 16:43:57 +00:00
Doxyfile.gsm.in Set HTML_TIMESTAMP to NO to make build reproducible 2019-07-17 11:03:44 +00:00
Doxyfile.vty.in Set HTML_TIMESTAMP to NO to make build reproducible 2019-07-17 11:03:44 +00:00
Makefile.am Makefile.am: EXTRA_DIST: debian, contrib/*.spec.in 2020-05-22 13:26:19 +02:00
README.md README.md: We don't build libosmotrau. The latter is in libosmo-abis.git 2020-05-12 05:43:21 +00:00
TODO-RELEASE gsm: Introduce osmo_{rai,cgi_ps}_cmp() APIs 2021-01-22 20:32:45 +01:00
configure.ac configure.ac: set -std=gnu11 2021-01-27 13:42:12 +01:00
git-version-gen add git-version-gen magic to automatically generate package version 2010-03-23 00:30:19 +08:00
libosmocodec.pc.in pkgconfig/osmocodec/osmocoding: link to talloc 2020-07-20 23:52:31 +02:00
libosmocoding.pc.in pkgconfig/osmocodec/osmocoding: link to talloc 2020-07-20 23:52:31 +02:00
libosmocore.pc.in libosmocore.pc.in: Append -lsctp to Libs.private 2019-10-22 16:09:05 +02:00
libosmoctrl.pc.in remove our internal copy of talloc, use system libtalloc 2015-12-05 23:38:18 +01:00
libosmogb.pc.in Revert "pkgconfig: link to mnl if available" 2021-01-08 10:14:02 +00:00
libosmogsm.pc.in remove our internal copy of talloc, use system libtalloc 2015-12-05 23:38:18 +01:00
libosmosim.pc.in remove our internal copy of talloc, use system libtalloc 2015-12-05 23:38:18 +01:00
libosmousb.pc.in libosmocore libusb integration 2019-12-16 00:17:27 +01:00
libosmovty.pc.in remove our internal copy of talloc, use system libtalloc 2015-12-05 23:38:18 +01:00
osmo-release.mk Fixup severe build performance issues 2017-10-04 16:26:37 +02:00
osmo-release.sh osmo-release.sh: Improve of PKG_CHECK_MODULES from configure.ac 2020-01-02 18:33:26 +01:00

README.md

libosmocore - set of Osmocom core libraries

This repository contains a set of C-language libraries that form the core infrastructure of many Osmocom Open Source Mobile Communications projects.

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.

There is no clear scope of it. We simply move all shared code between the various Osmocom projects in this library to avoid code duplication.

The libosmocore.git repository build multiple libraries:

  • libosmocore contains some general-purpose functions like select-loop abstraction, message buffers, timers, linked lists
  • libosmovty contains routines related to the interactive command-line interface called VTY
  • libosmogsm contains definitions and helper code related to GSM protocols
  • libosmoctrl contains a shared implementation of the Osmocom control interface
  • libosmogb contains an implementation of the Gb interface with its NS/BSSGP protocols
  • libosmocodec contains an implementation of GSM voice codecs
  • libosmocoding contains an implementation of GSM channel coding
  • libosmosim contains infrastructure to interface SIM/UICC/USIM cards

Homepage

The official homepage of the project is https://osmocom.org/projects/libosmocore/wiki/Libosmocore

GIT Repository

You can clone from the official libosmocore.git repository using

git clone git://git.osmocom.org/libosmocore.git

There is a cgit interface at http://git.osmocom.org/libosmocore/

Documentation

Doxygen-generated API documentation is generated during the build process, but also available online for each of the sub-libraries at http://ftp.osmocom.org/api/latest/libosmocore/

Mailing List

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