Osmocom's Base Station Controller for 2G mobile networks https://osmocom.org/projects/osmobsc
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Neels Hofmeyr 719322693c fix segfault upon release paging on BSSMAP Reset: init llist
Initialize the llist head gsm_bts->paging.pending_requests at the time gsm_bts
is allocated, not only at paging_init_if_needed().

The gsm_bts->paging sub-struct is invalid as long as gsm_bts->paging.bts
doesn't point back to bts. Hence the recently added iteration of
gsm_bts->paging.pending_requests should have checked whether bts is NULL. The
llist_head pending_requests is not initialized unless paging_init_if_needed()
has been called (and paging.bts is hence set). However, this fix is a safer way
to prevent errors like this in general.

The segfault was introduced by d382bf63e2 /
If3f53d3bb66ad2dc02db823cb813590c6b59c700

Related: OS#2747
Change-Id: Idfafac4e2c0e0a241a62aecbbdc22be71febf840
2017-12-13 19:13:44 +01:00
contrib jenkins: use osmo-clean-workspace.sh before and after build 2017-10-28 15:08:27 +00:00
debian debian: remove doublicated project name in example files 2017-11-15 23:44:16 +01:00
doc auth: remove obsolete VTY commands 2017-11-30 09:21:51 +01:00
include Generate SI2bis Rest Octets 2017-12-12 18:00:56 +00:00
m4 move openbsc/* to repos root 2017-08-27 03:52:43 +02:00
src fix segfault upon release paging on BSSMAP Reset: init llist 2017-12-13 19:13:44 +01:00
tests Generate SI2bis Rest Octets 2017-12-12 18:00:56 +00:00
.gitignore .gitignore: Update to post-NITB-split realities 2017-10-03 09:54:25 +08:00
.gitreview .gitreview: update repo url to new location 2017-08-08 17:24:04 +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 03:52:43 +02:00
COPYING move openbsc/* to repos root 2017-08-27 03:52:43 +02:00
Makefile.am Remove pkg-config file 2017-10-10 12:30:04 +00:00
README rewrite README 2017-09-06 16:25:09 +02:00
README.vty-tests move openbsc/* to repos root 2017-08-27 03:52:43 +02:00
configure.ac tests: Fix selection of python version 2017-11-24 12:55:15 +01:00
git-version-gen git-version-gen: look for .git in ./, not ../ 2017-08-27 03:52:43 +02:00
osmoappdesc.py doc/examples: tweak osmo-bsc.cfg, add osmo-bsc_custom-sccp.cfg 2017-09-15 02:02:30 +00:00

README

About OsmoBSC
=============

OsmoBSC originated from the OpenBSC project, which started as a minimalistic
all-in-one implementation of the GSM Network. In 2017, OpenBSC had reached
maturity and diversity (including M3UA SIGTRAN and 3G support in the form of
IuCS and IuPS interfaces) that naturally lead to a separation of the all-in-one
approach to fully independent separate programs as in typical GSM networks.

OsmoBSC was one of the parts split off from the old openbsc.git. Before, it
worked as a standalone osmo-bsc binary as well as a combination of libbsc and
libmsc, i.e. the old OsmoNITB. Since the standalone OsmoMSC with a true A
interface (and IuCS for 3G support) is available, OsmoBSC exists only as a
separate standalone entity.

OsmoBSC exposes
- A over IP towards an MSC (e.g. OsmoMSC);
- Abis interfaces towards various kinds of BTS;
- The Osmocom typical telnet VTY and CTRL interfaces.

Find OsmoBSC issue tracker and wiki online at
https://osmocom.org/projects/osmobsc
https://osmocom.org/projects/osmobsc/wiki

OsmoBSC-NAT is a specialized solution to navigating RTP streams through a NAT.
(Todo: describe in more detail)