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Holger Hans Peter Freyther f0b21dfd25 bsc_msc: Handle the loss of the MSC connection better 
Instead of simply exiting the application we will handle it by
giving up all SCCP connections, once we have the MSC back we will
send a GSM 08.08 reset message, and we will free all resources
related to these connections. This includes the primary and secondary
lchan of these connections.

While we are not connected to the MSC we will handle each message
that would open a SCCP connection by giving up the lchan. This has
only been compile tested and will need to be manually tested during
a test session.

This also highlights a DoS that could be used against OpenBSC
by setting up a lchan but never send any GSM L3 message. We will have
to fix that at some point.
 		2010-03-29 10:09:27 +02:00
..
contrib [bsc_msc_ip] This is a BSC that connects to real MSC via IP 2009-11-20 17:35:45 +01:00
doc [handover] Implement 04.08 HANDOVER COMMAND 2009-11-29 20:02:53 +01:00
include msc: Create a real interface for BSC MSC and start handling reconnects 2010-03-26 12:14:37 +01:00
src bsc_msc: Handle the loss of the MSC connection better 2010-03-29 10:09:27 +02:00
tests Merge branch 'on-waves/sccp' into on-waves/bsc-master 2010-03-26 05:49:34 +01:00
tools hlrstat: Print numeric MCC/MNC in case no name is available 2010-01-01 15:08:38 +01:00
.gitignore automatically include program version and print it from vty and --version 2010-03-23 00:09:32 +08:00
AUTHORS add sylvain and andreas as authors 2010-01-10 18:21:33 +01:00
COPYING move openbsc into its own subdirectory 2009-06-10 05:40:52 +08:00
Makefile.am automatically include program version and print it from vty and --version 2010-03-23 00:09:32 +08:00
README update README with information about nanoBTS and libosmocore 2010-03-09 12:38:31 +01:00
configure.in Merge branch 'on-waves/sccp' into on-waves/bsc-master 2010-03-26 05:49:34 +01:00
git-version-gen automatically include program version and print it from vty and --version 2010-03-23 00:09:32 +08:00
libsccp.pc.in [sccp] Install the static sccp library and the headers 2010-02-12 22:42:13 +01:00
openbsc.pc.in Install gsm_04_08.h and required headers into a openbsc/ 2010-02-16 17:51:42 +01:00

README 

About OpenBSC
=============

OpenBSC is a minimalistic implementation of the GSM Network, with
particular emphasis on the functionality typically provided by the BSC,
MSC, HLR, VLR and SMSC.

Its currently supported interfaces towards the BTS are:

 * Classic A-bis over E1 using a mISDN based E1 interface. In other
   words, you can connect existing GSM Base Transceiver Station (BTS)
   through E1 to OpenBSC.  So far, we have only tested the Siemens BS-11
   Test reports with other BTS are much appreciated!

 * A-bis over IP as used by the ip.access nanoBTS product family

This project is still in its early days, and there are lots of areas where it
doesn't behave as per GSM spec.

	Harald Welte <laforge@gnumonks.org>


libosmocore
===========

Please note that as of March 2010, OpenBSC has a dependency to a library
called "libosmocore".  You can obtain that library from

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