22 Jul
2011
22 Jul
'11
8:19 p.m.
Hello,
since some days I'm using an old version of OpenBSC and LCR (as suggested by
University of Freiburg) to interconnect our GSM and PSTN. We are using
Debian squeeze and a nanoBTS.
However, I would like to upgrade to a newer version of OpenBSC.
Unfortunately, no current LCR version compiles without errors such as
missing declarations etc., for example:
g++ -DHAVE_CONFIG_H -I. -DWITH_GSM_BS -I./openbsc/include
-I./libosmocore/include -I./openbsc -Wall
-DCONFIG_DATA="\"/usr/local/lcr\""
-DSHARE_DATA="\"/usr/local/lcr\""
-DLOG_DIR="\"/usr/local/lcr\""
-DEXTENSION_DATA="\"/usr/local/lcr/extensions\"" -g -O2 -MT gsm.o
-MD -MP
-MF .deps/gsm.Tpo -c -o gsm.o gsm.cpp
In file included from ./openbsc/include/openbsc/rest_octets.h:4,
from ./openbsc/include/openbsc/gsm_data.h:9,
from gsm_bs.h:2,
from main.h:157,
from gsm.cpp:12:
./openbsc/include/openbsc/gsm_04_08.h:33: error: use of enum ‘gsm_chan_t’
without previous declaration
./openbsc/include/openbsc/gsm_04_08.h:33: error: invalid type in declaration
before ‘;’ token
./openbsc/include/openbsc/gsm_04_08.h:34: error: use of enum
‘gsm_chreq_reason_t’ without previous declaration
./openbsc/include/openbsc/gsm_04_08.h:34: error: invalid type in declaration
before ‘;’ token
In file included from ./openbsc/include/openbsc/gsm_data_shared.h:11,
from ./openbsc/include/openbsc/gsm_data.h:154,
from gsm_bs.h:2,
from main.h:157,
from gsm.cpp:12:
./libosmocore/include/osmocom/gsm/gsm_utils.h:62: error: expected identifier
before ‘)’ token
./libosmocore/include/osmocom/gsm/gsm_utils.h:62: error: two or more data
types in declaration of ‘parameter’
gsm.cpp: In function ‘gsm_mncc* create_mncc(int, unsigned int)’:
gsm.cpp:195: error: invalid application of ‘sizeof’ to incomplete type
‘gsm_mncc’
etc. etc.
If I manually include some header files from libosmocore and OpenBSC to LCR
and declare missing ENUMs (dirty hacks), LCR starts without a problem.
Starting osmo-nitb with -P and -m parameters, LCR can connect to MNCC
socket. But any try to start voice traffic either from or to a mobile
station results into these continuous messages:
<0006> gsm_04_08.c:2954 receive message GSM_TCH_FRAME
<0006> gsm_04_08.c:2986 TCH frame to lchan without RTP connection
<0006> gsm_04_08.c:2954 receive message GSM_TCH_FRAME
<0006> gsm_04_08.c:2986 TCH frame to lchan without RTP connection
<0006> gsm_04_08.c:2954 receive message GSM_TCH_FRAME
<0006> gsm_04_08.c:2986 TCH frame to lchan without RTP connection
.....
Furthermore, either OpenBSC ignores LCR messages or LCR does not send
messages to OpenBSC, because calls from mobile stations are signalled
through LCR to asterisk; calls from asterisk to a mobile station are
indicated by LCR but not by OpenBSC.
All configuration files of the running setup (openbsc.cfg, LCR files) are
used.
Commits...
- LCR: 39a36cb99a6dba1441a7a4b51914e0dadf3a7ae8
- libosmocore: 95f7eb288c4b8b69d61fa8d68957fb21f09e11e5
- OpenBSC: fe2d9b2fab2ae36a12411435f910efc9697d7b18 (debian branch, but same
problem with master)
Is there really no possibility at the moment to run LCR with a current
OpenBSC?
Many thanks in advance,
Lennart
23 Jul
23 Jul
4:55 a.m.
Hi Lennart,
On Sat, Jul 23, 2011 at 02:19:52AM +0200, Lennart Müller wrote:
since some days I'm using an old version of
OpenBSC and LCR (as suggested by
University of Freiburg) to interconnect our GSM and PSTN. We are using
Debian squeeze and a nanoBTS.
However, I would like to upgrade to a newer version of OpenBSC.
Unfortunately, no current LCR version compiles without
errors such as
missing declarations etc., for example:
I've committed some changes a couple of minutes ago (to libosmocore +
openbsc) that make lcr compile again.
The only missing part is one minor change to lcr:
diff --git a/gsm_bs.h b/gsm_bs.h
index 8a55213..45bf083 100644
--- a/gsm_bs.h
+++ b/gsm_bs.h
@@ -1,5 +1,6 @@
extern "C" {
#include <openbsc/gsm_data.h>
+#include <openbsc/mncc.h>
}
/* GSM port class */
Starting osmo-nitb with -P and -m parameters, LCR can
connect to MNCC
socket. But any try to start voice traffic either from or to a mobile
station results into these continuous messages:
I will try to look into it, but I'm not sure when I find time to do so,
there are lots of other issues on my todo list pending at the moment.
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
4:59 p.m.
Hi Harald,
2011/7/23 Harald Welte <laforge(a)gnumonks.org>
Okay, I see.
It works now, I traced down the problem to LCR.
The file gsm.cpp contains following function at line 200:
int send_and_free_mncc(void *instance, unsigned int msg_type, void
*data)
There is an if-Query:
if (instance) {
#ifdef WITH_GSM_BS
ret = mncc_send((struct gsm_network *)instance, msg_type, data);
#endif
#ifdef WITH_GSM_MS
ret = mncc_send((struct osmocom_ms *)instance, msg_type, data);
#endif
}
The problem is: The query is always false, so no messages are sent to
OpenBSC.
If I comment out the if-query, everything works as expected: Calls can be
made mobile originated and mobile terminated.
However, I don't think the if-query is there without a reason.
Within gsm_bs.cpp, send_and_free_mncc is called with parameter
p_m_g_instance, which is written at Line 64:
p_m_g_instance = gsm->network;
-- Lennart
I've committed some changes a couple of minutes
ago (to libosmocore +
openbsc) that make lcr compile again.
The only missing part is one minor change to lcr:
diff --git a/gsm_bs.h b/gsm_bs.h
index 8a55213..45bf083 100644
--- a/gsm_bs.h
+++ b/gsm_bs.h
@@ -1,5 +1,6 @@
extern "C" {
#include <openbsc/gsm_data.h>
+#include <openbsc/mncc.h>
}
/* GSM port class */
Compiles now, thanks!
Starting
osmo-nitb with -P and -m parameters, LCR can connect to MNCC
socket. But any try to start voice traffic either from or to a mobile
station results into these continuous messages:
I will try to look into it, but I'm not sure when I find time to do so,
there are lots of other issues on my todo list pending at the moment.
5106
days inactive
5106
days old
2 comments
2 participants
participants (2)
-
Harald Welte -
Lennart Müller