Hi everyone,

As I said in previous messages, I want to write a program to dialogue with openBSC (more precisely, osmo-nitb)

In fact I tried to compile osmo-bts but it seems some structures are not even define anywhere (struct osmobts_ms, struct osmol2_entity...). I know it's still under development but I can't test the main program and read the code is a little bit long.

For ipaccess-proxy, the main thread also starts bsc_select_main, resulting in osmo-nitb and proxy both waiting for something but nothing happens. That brings these questions:

Is there any documentation of the code of open BSC ?
Are all the protocols of Abis interface implemented (LAPD, BTSM, RR) ? If yes, where can they be found in the code and is it possible to use them externally to forge packets ?
Is it possible to connect 2 open BSC together ? What are the requirements?
In the main loop of osmo-nitb, what are the message open BSC is waiting for (bsc_select_main)?
Do you think it would be possible that a SMSC communicate with open BSC ? What are the requirements?
Have you implemented part of the SS7 stacks (mtp, SCCP, ...) ?

Thank you

2011/5/10 Christopher HENARD <christopher.henard@esial.net>

Ok, I'll see that, thanks.

2011/5/10 Harald Welte <laforge@gnumonks.org>

On Tue, May 10, 2011 at 04:33:40PM +0200, Christopher HENARD wrote:
> Ok, I'll try with ipaccess-proxy code since I don't know what is Andrea's
> GSM BTS.

see the osmo-bts.git repository on git.osmocom.org

> However, the process osmo-nitb need a config file to start, and as I want to
> simulate nano BTS and forge IP packets, what config file am I supposed to
> provide to osmo-nitb?

openbsc.cfg.nanobts or something along those lines.

> Thank you
--
- Harald Welte <laforge@gnumonks.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)