- OpenBSC - lists.osmocom.org

paging priority
by robert 09 Aug '17

09 Aug '17

Hi, I have noticed that when there are many MS connecting to my BTS if I try to page (call or send SMS) a specific MS it takes a long time and sometimes just fails. Is there a way to give a higher priority for paging under high network loads ? from vty: Current Channel Load: CCCH+SDCCH4: 100% (4/4) TCH/F: 100% (2/2) SDCCH8: 100% (40/40) best regards,

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Re: jenkins and osmo-ci
by Neels Hofmeyr 09 Aug '17

09 Aug '17

Hey André, since https://gerrit.osmocom.org/2465 is merged, do you have a patch ready that enables the build cache for openbsc.git/contrib/jenkins.sh? The slowness of the openbsc-gerrit builds is a drag... We could throw more build slaves at it, but it makes sense to give the build cache a chance first. ~N

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Re: RRLP
by Vadim Yanitskiy 03 Aug '17

03 Aug '17

Hi, > And I found it's possible to acrivate some setting in > OnmoNITB but how can I do the actual request? I cannot > find anything in the user manual, vty manual or in the menu... This request is being sent automatically every time when a dedicated channel between MS and BTS is established. With best regards, Vadim Yanitskiy.

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RRLP - How?
by Anton Gorbachev 03 Aug '17

03 Aug '17

Dear developers, I found that RRLP requests are possible within OsmoNITB. http://security.osmocom.org/trac/wiki/RRLP The popular Free Software implementations of the GSM network OpenBSC <http://openbsc.osmocom.org/> and OpenBTS <http://openbts.sourceforge.net/> both support RRLP inquiries to mobile phones And I found it's possible to acrivate some setting in OnmoNITB but how can I do the actual request? I cannot find anything in the user manual, vty manual or in the menu... Thanks in advance!

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TS 04.14 commands
by robert 01 Aug '17

01 Aug '17

Hi, What are the newly implemented TS 04.14 commands used for ?

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nano 3g s8
by Erich Dachleger 01 Aug '17

01 Aug '17

Hi,Does anybody now if the nano 3g s8 is available anywhere. They seem to be out of stock on ebay. Regards

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libosmo-sccp vty point-code
by Neels Hofmeyr 27 Jul '17

27 Jul '17

In the libosmo-sigtran cs7-instance vty scope, we have the same point-code command on adjacent scopes: cs7 instance 1 point-code 1.2.3 ! sets primary_pc sccp-address msc point-code 0.0.1 sccp-address sgsn point-code 0.0.2 So if we reverse the order, we're in trouble: cs7 instance 1 sccp-address msc point-code 0.0.1 sccp-address sgsn point-code 0.0.2 point-code 1.2.3 ! sets primary_pc The parser interprets the last point-code to belong to the sgsn address scope, not the outer cs7 scope. We could rename the sccp-address one to 'pc', but... This reinforces the idea to do strict parsing of leading spaces in all our vty config files to interpret as explicit scope exit. That would break some running configs with odd spacing, but would also fix all of these issues forever. Given we're moving to a kind of Osmocom 2.0, now would be a good time to make such a change. If we from now on disallow tabs and enforce single-space indenting of child scopes, the code for that should be rather simple: count leading spaces and done. And we'd need to turn this off for interactive VTY shells. ~N

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ip.access nano 3G S8 Configuration
by Meath Broadband 26 Jul '17

26 Jul '17

We are trying to setup this AP as part of the 3.5G Osmocom project. We have the software stack operational and are now preparing the nano for testing. When we try to login via telnet at port 8090 we are getting a constant refusal to connect:- root@osm/openbsc/openbsc/src/ipaccess# telnet 192.168.192.30 8090 Trying 192.168.192.30... telnet: Unable to connect to remote host: Connection refused The device seems to be locked as indicated by the leds on the front panel. We have tried resetting the nano to see if this would help but to no avail. Any ideas as to how to access the device for initial configuration?. Thanks John

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code being sacrificed in the course of the OmsoNITB split-up
by Neels Hofmeyr 24 Jul '17

24 Jul '17

Some code that is disabled to be able to compile libmsc without libbsc is related to communication to the BTS, that is replaced by the new A-interface. However, the following bits are not; Any opinions about what to do with it: - Report on which ARFCN and timeslot a silent call has occured. I would simply drop the ARFCN and timeslot information, saying "silent call successful". (same in two log messages) static int scall_cbfn(unsigned int subsys, unsigned int signal, void *handler_data, void *signal_data) { struct scall_signal_data *sigdata = signal_data; struct vty *vty = sigdata->data; switch (signal) { case S_SCALL_SUCCESS: vty_out(vty, "%% silent call on ARFCN %u timeslot %u%s", sigdata->conn->lchan->ts->trx->arfcn, sigdata->conn->lchan->ts->nr, VTY_NEWLINE); break; case S_SCALL_EXPIRED: vty_out(vty, "%% silent call expired paging%s", VTY_NEWLINE); break; } return 0; } - Add Osmocom specific TLVs to SMPP /* Append the Osmocom vendor-specific additional TLVs to a SMPP msg */ static void append_osmo_tlvs(tlv_t **req_tlv, const struct gsm_lchan *lchan) { int idx = calc_initial_idx(ARRAY_SIZE(lchan->meas_rep), lchan->meas_rep_idx, 1); const struct gsm_meas_rep *mr = &lchan->meas_rep[idx]; const struct gsm_meas_rep_unidir *ul_meas = &mr->ul; const struct gsm_meas_rep_unidir *dl_meas = &mr->dl; /* Osmocom vendor-specific SMPP34 extensions */ append_tlv_u16(req_tlv, TLVID_osmo_arfcn, lchan->ts->trx->arfcn); if (mr->flags & MEAS_REP_F_MS_L1) { uint8_t ms_dbm; append_tlv_u8(req_tlv, TLVID_osmo_ta, mr->ms_l1.ta); ms_dbm = ms_pwr_dbm(lchan->ts->trx->bts->band, mr->ms_l1.pwr); append_tlv_u8(req_tlv, TLVID_osmo_ms_l1_txpwr, ms_dbm); } else if (mr->flags & MEAS_REP_F_MS_TO) /* Save Timing Offset field = MS Timing Offset + 63 */ append_tlv_u8(req_tlv, TLVID_osmo_ta, mr->ms_timing_offset + 63); append_tlv_u16(req_tlv, TLVID_osmo_rxlev_ul, rxlev2dbm(ul_meas->full.rx_lev)); append_tlv_u8(req_tlv, TLVID_osmo_rxqual_ul, ul_meas->full.rx_qual); if (mr->flags & MEAS_REP_F_DL_VALID) { append_tlv_u16(req_tlv, TLVID_osmo_rxlev_dl, rxlev2dbm(dl_meas->full.rx_lev)); append_tlv_u8(req_tlv, TLVID_osmo_rxqual_dl, dl_meas->full.rx_qual); } if (lchan->conn && lchan->conn->vsub) { struct vlr_subscr *vsub = lchan->conn->vsub; size_t imei_len = strlen(vsub->imei); if (imei_len) append_tlv(req_tlv, TLVID_osmo_imei, (uint8_t *)vsub->imei, imei_len+1); } } deliver_to_esme() { [...] if (esme->acl && esme->acl->osmocom_ext && conn->lchan) append_osmo_tlvs(&deliver.tlv, conn->lchan); [...] } - Siemens BS11 MRPCI /* see mail on openbsc@ 9 Feb 2016 22:30:15 +0100 * We need to hook sending of MRPCI to Siemens BS11 somewhere else */ if (is_siemens_bts(conn->bts)) send_siemens_mrpci(msg->lchan, classmark2-1); - Debug log: report bts - trx - ts - ti in mncc_rcvmsg() (No BTS information available in OsmoMSC anymore) - In gsm48_cc_rx_setup(), populate struct gsm_mncc setup with lchan type. (lchan information is no longer available in OsmoMSC) - In libmsc, gsm_04_08.c, we connect libbsc handle_abisip_signal(); the same is done in osmo_bsc_audio.c in osmo_bsc_audio_init(), so I assume it can be dropped from libmsc. /* * This will be run by the linker when loading the DSO. We use it to * do system initialization, e.g. registration of signal handlers. */ static __attribute__((constructor)) void on_dso_load_0408(void) { osmo_signal_register_handler(SS_ABISIP, handle_abisip_signal, NULL); } ~N

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Re: osmo-nitb error during execution (Error occured... timer t3103 0)
by Vadim Yanitskiy 24 Jul '17

24 Jul '17

Hi, > Error occurred during reading below line: > timer t3103 0 I may be wrong, but it's probably related to recent change: http://git.osmocom.org/openbsc/commit/?id=ab2454e776f1a4bc4977ef48ec2844600… In short, it doesn't make sense to set '0' value to any timer. So, updating the software, please also keep your configuration updated ;) With best regards, Vadim Yanitskiy.

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