OpenBSC May 2018

openbsc@lists.osmocom.org

21 participants
27 discussions

React to IMSI Attach but not PERIODIC
by Keith Whyte 31 May '18

31 May '18

Hi All, I have a use case where I'd like to react to MS connecting to the network, that is on initial IMSI ATTACH. We already have the SMPP alert notification mechanism which can be used, but unfortunately in SMPP the ms_availability_status only has 3 posible values in the spec: 0: Available 1: Denied 2: Unavailable. So currently if I react to status 0, this would also happen on periodic LURs I could keep state separately but that sounds prone to errors. The external process reacting to the alert notification could try somehow to get the previous status from HLR or database, but that sounds like a race condition. One possibility might be to extend this with a further custom value 3: Available (Initial Attach) or some such? Any thoughts?

4 9

UICC with ISIM application
by Tomcsányi, Domonkos 29 May '18

29 May '18

Hello All, Sorry if this is an off-topic question, but I was wondering: does anyone know of any carrier that actually uses a UICC ('SIM card') with the ISIM application installed? So far all cards I saw have only USIM, maybe CSIM on them. I'd like to extend Benoit's card library with ISIM support, but there is no way to test my code right now, so I'm thinking about buying maybe a card. Thanks. Domi

3 3

Writing FPLMS to SIM
by Keith Whyte 28 May '18

28 May '18

Hi all Somebody mentioned recently (at osmodevcon was it?) about writing to the FPLMNS list to avoid service loss due to LUR reject cause 11 (I think?) I notice we don't seem to have this an a option in pySim-prog.py, so I am wondering what tool was used? Thanks! (I noted the commented FIXME section for HPLMN in pySim.read.py and from there was able to modify read address and read and decipher the FPLMN list, although i did not get a nice readable output format yet.)

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Re: Compiler Error OsmocomTRX
by Babar Ali 28 May '18

28 May '18

I received following error while compling osmo-trx on rasbian, i have already build libosmocore-0-11-0 from source and installed but despite this still unable to compile osmo-trx, any one can help to resolve the issue! configure: error: Package requirements (libosmocore >= 0.11.0) were not met: Requested ‘libosmocore >= 0.11.0’ but version of Osmocom Core Library is UNKNOWN Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix.” I have already build following components on Rasbian from source successfully LimeSuite SoapySDR SoapyUHD libosmocore-0.11.0/ libosmocore-0.96.0 RegardsBabar

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osmo-trx and osmo-bts-trx ip address with LimeSDR
by Sandi Suhendro 26 May '18

26 May '18

Dear list, I have question about osmo-trx config with osmo-bts-trx. if in osmo-bts-trx osmotrx ip local 192.168.100.73 osmotrx ip remote 192.168.100.100 then what ip address fill on osmo-trx for limesdr.cfg? bind-ip 192.168.100.73 remote-ip 192.168.100.100 Please correct me, cause I confuse osmo-trx won't running if not using same ip as 127.0.0.1 well, Does 127.0.0.1 is fine for only sms/call network in new split? please advise. Thanks. -- Best Regards, DUO

1 0

OsmoCon 2018 CfP / submit your topic[s] *now* !
by Harald Welte 25 May '18

25 May '18

Dear Osmocom community, one of the main difficulty with OsmoCon 2017 last year was that nobody submitted talks / discussions within the deadline, early enough to allow for proper planning. This lead to the situation where the sysmocom team had to come up with a schedule/agenda on their own. Later on *much after the CfP deadline*, people then squeezed in talks, making the overall schedule too full. It is up to you to avoid this situation again in 2018 by submitting your talk *RIGHT NOW*. We will be very strict regarding late submissions. So if you would like to shape the Agenda of OsmoCon 2018, this is your chance. Please use it. We will have to create a schedule soon, as [almost] nobody will register to a conference unless the schedule is known. If there's not sufficient contribution in terms of CfP response from the wider community, don't complain later that 90% of the talks are from sysmocom team members and only about the Cellular Network Infrastructure topics. You have been warned. Please make your CfP submission in time at https://pretalx.sysmocom.de/osmocon2018/cfp before the CfP deadline on *2018-05-30 23:59 (Europe/Berlin)* Thanks for your kind attention. Looking forward to meet with the community at OsmoCon 2018 in October. Regards, Harald -- - 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)

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IPAccess Nanobts error
by Akib Sayyed 24 May '18

24 May '18

Dear list I am trying to register IPAccess NanotBTS using OsmoNiTB after some time BTS gives error and restarts. I have attached log of osmonitb. Here is some part of log ERROR <0004> (bts=0,trx=0,ts=0,pchan=CCCH+SDCCH4) Abis RSL rx IPACC: mismatching chan_nr=0x08 ERROR <0004> (bts=0,trx=0,ts=1,pchan=SDCCH8) Abis RSL rx IPACC: mismatching chan_nr=0x09 BTS 0: Failure Event Report: Type=processing failure, Severity=warning level failure, Probable cause=Manufacturer specific values: Software warning, Additional Text=9105:WARN:OAM_RES:res_trx_status.c#209:TRX is not responding - reinitialising t. BTS 0: Failure Event Report: Type=processing failure, Severity=warning level failure, Probable cause=Manufacturer specific values: Software warning, Additional Text=FSM Unhandled Event class=Baseband Transceiver inst=0 ev="DISABLED RSP" st=ini. BTS 0: Failure Event Report: Type=processing failure, Severity=warning level failure, Probable cause=Manufacturer specific values: Software warning, Additional Text=FSM Unhandled Event class=Channel inst=0 ev="DISABLED RSP" st=initial -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243

2 1

The reason why you see paging by IMSI in real-world GSM networks
by loay abdelrazek 22 May '18

22 May '18

Hello All I wanted to ask your about something regarding user privacy leakage in the broadcast channels. As i have been sniffing and testing myself and i found that on the paging requests type 1 IMSI along with TMSI is sent. I have came to understand that first sending two identifications is the norm, but what i dont understand the high rate of sending IMSI as mobile identification, and as per specification its noted that either TMSI OR IMSI are sent, so does that by any mean could be a configuration issues from the MSC/VLR side that should be changed, is this the norm? if its the norm, then why using TMSI. >From your experience what are the countermeasures you think that should be taken from the operator side to protect against such information leaks, or there is nothing that an operator can do much for this ?What could be the different cases where the IMSI could be sent ? Thanks

3 5

requesting working demo config files for 2g setup osmomsc, osmobsc, osmostp,osmohlr, osmomgw
by toby 22 May '18

22 May '18

Dear All, I was wondering whether anyone could please provide me a set of fully working configuration files for a network-in-the-box setup with msc, bsc, stp, hlr, mgw parts (not osmo-nitb). I have successfully compiled all the required software from source, however, the migration guide is incomplete and I cannot seem to find a simple tutorial for building an osmo network from scratch using all the new components. I want to set up a 2g network for calls/sms, i don't need gprs though. Thanks! Sincerely, Toby M.

4 5

libsmpp34 C code sample to receive SMS
by Rafael Diniz 18 May '18

18 May '18

Hi all, In libsmpp34 git there are examples on how to send an SMS (esme in test_app directory, for example), but none to receive on SMS (from osmo-nitb / osmo-msc tcp smpp port). In case anyone has some sample C code to receive SMS using libsmpp34... it will help me. ; ) Thanks, Rafael Diniz

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OpenBSC May 2018