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Vadim Yanitskiy 24e025e3e2 libmsc/gsm_04_11.c: refactor MT SMS message handling 
According to GSM TS 04.11, the SMC (Short Message Control) state
machine is a part of CM-sublayer of L3, that is responsible for
connection management (establisment and releasing), and SM-RP
(Relay Protocol) message delivery.

For some reason, the connection establisment request from SMC
(GSM411_MMSMS_EST_REQ) was not handled properly - it was
always assumed that connection is already established.

This is why the code initiating a MT (Mobile Terminated) SMS
transfer had to establish a radio connection with subscriber
manually.

Let's benefit from having the SMC state machine, and offload
connection establishment to it. This change makes the local
implementation closer to GSM TS 04.11, and facilitates the
further integration of GSUP transport.

NOTE: the expected unit test output is changed, because now we
always allocate a transaction first, and then establish a
connection, not vice versa.

Change-Id: I4a07ece80d8dd40b23da6bb1ffc9d3d745b54092
 		2018-11-29 02:54:54 +07:00
contrib Install systemd services with autotools 2018-09-10 16:10:06 +02:00
debian Install sample cfg file to /etc/osmocom 2018-09-12 18:49:29 +02:00
doc build manuals moved here from osmo-gsm-manuals.git 2018-11-27 17:50:54 +01:00
include libmsc/gsm_04_11.c: refactor MT SMS message handling 2018-11-29 02:54:54 +07:00
m4 move openbsc/* to repos root 2017-07-12 23:17:10 +00:00
src libmsc/gsm_04_11.c: refactor MT SMS message handling 2018-11-29 02:54:54 +07:00
tests libmsc/gsm_04_11.c: refactor MT SMS message handling 2018-11-29 02:54:54 +07:00
.gitignore build manuals moved here from osmo-gsm-manuals.git 2018-11-27 17:50:54 +01:00
.gitreview update .gitreview to new repo url 2017-08-08 17:26:28 +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 2017-07-12 23:17:10 +00:00
COPYING move openbsc/* to repos root 2017-07-12 23:17:10 +00:00
Makefile.am Install systemd services with autotools 2018-09-10 16:10:06 +02:00
README rewrite README 2017-09-06 16:33:41 +02:00
README.vty-tests Remove obsolete ./configure option 2017-11-29 14:24:54 +00:00
configure.ac build manuals moved here from osmo-gsm-manuals.git 2018-11-27 17:50:54 +01:00
git-version-gen git-version-gen: Don't check for .git directory 2018-07-24 18:05:46 +02:00
osmoappdesc.py doc/examples: add detailed cs7 config examples 2017-09-07 03:10:36 +02:00

README 

About OsmoMSC
=============

OsmoMSC 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.

OsmoMSC was one of the parts split off from the old openbsc.git. Before, it was
the libmsc part of the old OsmoNITB. Since a true A interface and IuCS for 3G
support is available, OsmoMSC exists only as a separate standalone entity.

OsmoMSC exposes
- GSUP towards OsmoHLR (or a MAP proxy);
- A over IP towards a BSC (e.g. OsmoBSC);
- IuCS towards an RNC or HNB-GW (e.g. OsmoHNBGW) for 3G voice;
- MNCC (Mobile Network Call Control derived from GSM TS 04.07);
- SMPP 3.4 (Short Message Peer-to-Peer);
- The Osmocom typical telnet VTY and CTRL interfaces.

Find OsmoMSC issue tracker and wiki online at
https://osmocom.org/projects/osmomsc
https://osmocom.org/projects/osmomsc/wiki