- OpenBSC - lists.osmocom.org

LAPDm, msgb and osmo-bts breakage
by Holger Hans Peter Freyther 13 Jan '12

13 Jan '12

Hi Jolly, I have finally tracked down the LAPDm breakage we have in osmo-bts. It comes from the fact that we get a RSL message from the BSC and then forward the msgb that holds the IPA header followed by the RSL message. There is code in both lapdm.c and lapd_core.c that tries to extract the RSL_IE_L3_INFO and then updates the msgb to be of the length of that TLV and sets the l3h to the start of the L3_INFO: Currently: msgb_pull_l2h(msg); msg->len = length; msg->tail = msg->data + length; this kind of assumes that before the "msgb_pull_l2h", msg->l2h == msg->data but in the above case it does not hold true. You will need to use "msg->l3h + length" with this idiom. Fixes: I have pushed some fixes to "zecke/lapd-fixes", but I would like to see the above pattern move to msgb.h, and it would be nice if we could write test cases for the other methods in lapdm.c that manipulate the msgb.h (currently only data request is tested). One more thing: I would be somehow happy if lapdm_rslms_recvmsg would indicate if any messages were sent or queued, currently it will return 0 in more than one case. cheers holger

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OpenBSC development
by Labs 10 Jan '12

10 Jan '12

Hello, First of all congratulations to all people involved in this project. I am new to this list but I watch the project for some time. I have some questions and maybe some ideas how to make this project testers or enthusiasts friendly. I work with BSCes and BTSes every day at my work but I would like to try and play with OpenBSC but the installation and configuration looks time consuming and not friendly at all. I have some questions and suggestions below: * What about some packages for OpenBSC so we can install them easier from a repository? How hard, time consuming is to make a nightly build of the git sources and have some pre-compiled Debian packages? * Did somebody try to build OpenBSC on SPARC architecture? I have some Sun servers that I would like to use for this project. Same thing like before, some pre-compiled packages would be nice for SPARC. * Now, more like a project design request. There is not so much documentation how to configure the parameters of OpenBSC, SGSN and BTS so a web interface also would be nice and very helpful. Second thing on this topic, moving configuration from one server to another needs to be exported easily and imported in the same way to new hardware. What about a DB that keeps all the settings and with one command in CLI or web interface you export everything and import it on another hardware? I am sorry if some things are already in OpenBSC but it's kind of hard to find important stuff on that wiki. Also I know that OpenBSC is under hard development so new features might come later. Best regards, R.

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Required open BSC
by Upaj Mahat 09 Jan '12

09 Jan '12

Dear all, I work for a mobile operator and we are working on R&D to improve the quality of our network. For our R&D we required a open BSC, is there any one who sells open BSC. If there is anyone then our company is willing to buy one. Regards Upaj

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Quick Recap of running the 28C3 network
by Holger Hans Peter Freyther 29 Dec '11

29 Dec '11

Hi all, just a quick review of things we saw/learned during the congress * OsmocomBB LAPDm and nanoBTS LAPDm appear to have some communication issues leading to timeouts (nanoBTS resends a message with N(R) not incremented as a response to our I frame with Identity Response (or timeout) but with the old data). We don't have a fix/clear understanding of this yet... looks a bit like a bug in the nanoBTS firmware (but then other phones appear to work just fine) * CHANNEL ACTIVATION NACK on a TS. No idea why (maybe we closed a channel with our auto-timer but the nanoBTS thinks it is open). IIRC the nanoBTS sends us a report about open channels, we should cross-check every n-th report with our view of the channels... on top of that we should block failed channels (configurable, still to do). * Open channels... E.g. with a nanoBTS reboot or "drop bts connection ", there was a bug in libosmo-abis that the e1inp_event was not sent as the link was already taken out of the list of sign links when close is called (fixed in libosmo-abis and sharing code between rsl.c and ipaccess.c) * one OML NACK drops all BTS.. The code is there to deal with a crashed BTS to not have it connected in a bad state... (fixed in zecke/28c3) * subscriber queue, thanks to jolly's SMS setup we increased the amount of SMS and there still appear to be paths in the code that do not properly release the transaction/subscr_put and the queue got stuck. We should start by merging jolly's sms rework.. and see how we can move the queue out of process... * Local End Release for SAPI > 0 should be done in the channel release code, we need to implement T3109... thanks to jolly reading GSM 08.58/04.08 with me and discussing the normal/abnormal case. I have some work in progress (only tested the success case) patches in the zecke/28c3 branch. * I uploaded our scripts but somehow the core dumping does not work correctly (core_pattern appears to be right though) for running the network * Purging subscribers from the VLR, we do it too aggressively (on failed paging), it should take the periodic updating timer into account. * Sometimes i miss dates.. e.g. when was the channel opened probably some more things I forgot now, would be a great opportunity if someone gives a hand in cleaning things up. holger PS: jenkins will be back in january, ZFS crashed, the secret key was on the ZFS, grep didn't find the backup script...

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MNCC and MNCC_LCHAN_MODIFY (and ack/nack)
by Holger Hans Peter Freyther 27 Dec '11

27 Dec '11

Hi Andreas, all, right now there is no ack/nack for the MNCC_LCHAN_MODIFY and I would like to introduce _ACK/_NACK for it. The MNCC_LCHAN_MODIFY message will end up calling the gsm0808_assignment_request of the BSC API and in case the call is not on a TCH it will assign a new TCH. Things will go wrong from here. osmo-nitb does not implement the assign_compl/assign_fail callbacks and in case of an assignment failure we crash right now (master has dummy callbacks). I would like to introduce MNCC_LCHAN_MODIFY_ACK/MNCC_LCHAN_MODIFY_NACK, change the mncc_sock.c:mncc_setup_ind and handling of MNCC_CALL_CONF_IND. what do you think? holger

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Re: OpenBSC Digest, Vol 36, Issue 11
by Dick Rwegaba 16 Dec '11

16 Dec '11

Hi This is the libboost version that i have but still get the same error. root@debian:~/gnuradio# apt-cache search libboost-system libboost-system1.42.0 - Operating system (e.g. diagnostics support) library and this is the boost tree root@debian:~# apt-cache search boost libboost-date-time1.42.0 - set of date-time libraries based on generic programming concepts libboost-thread1.42.0 - portable C++ multi-threading libboost-iostreams1.42.0 - Boost.Iostreams Library libboost-serialization1.42-dev - serialization library for C++ libboost-program-options1.42.0 - program options library for C++ libboost-dev - Boost C++ Libraries development files (default version) libboost-thread1.42-dev - portable C++ multi-threading libboost-system1.42.0 - Operating system (e.g. diagnostics support) library libboost-thread-dev - portable C++ multi-threading (default version) libboost-signals1.42.0 - managed signals and slots library for C++ libboost1.42-dev - Boost C++ Libraries development files libboost-date-time1.42-dev - set of date-time libraries based on generic programming concepts libboost-serialization1.42.0 - serialization library for C++ libboost-filesystem1.42.0 - filesystem operations (portable paths, iteration over directories, etc) in C++ root@debian:~# On Thu, Dec 15, 2011 at 2:00 PM, <openbsc-request(a)lists.osmocom.org> wrote: > Send OpenBSC mailing list submissions to > openbsc(a)lists.osmocom.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.osmocom.org/mailman/listinfo/openbsc > or, via email, send a message with subject or body 'help' to > openbsc-request(a)lists.osmocom.org > > You can reach the person managing the list at > openbsc-owner(a)lists.osmocom.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of OpenBSC digest..." > > > Today's Topics: > > 1. Re: OpenBSC Digest, Vol 36, Issue 8 (Holger Hans Peter Freyther) > 2. Re: omsosgsn test phone recommendation? (Seungju Kim) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 15 Dec 2011 09:26:33 +0100 > From: Holger Hans Peter Freyther <holger(a)freyther.de> > To: openbsc(a)lists.osmocom.org > Subject: Re: OpenBSC Digest, Vol 36, Issue 8 > Message-ID: <4EE9AF39.6060105(a)freyther.de> > Content-Type: text/plain; charset=ISO-8859-1 > > On 12/15/2011 06:41 AM, Dick Rwegaba wrote: > > dear pals please help with this error for gnuradio build > > Hi Dick, > > do not top post. You can use a service like gmane.org to post to this > mailinglist without being subscribed and following the netiquette. If you > include the output of a program, include the full output (e.g. autoconf > pointed you to config.log). > > Let me try to explain autoconf's error output, maybe it is helpful. > > "configure: error: Could not link against libboost_system!" > > configure: The configure program you invoked. > error: This means an error has occured. > "Could not link against libboost_system": Is the error that happened. > > "Could not link": It means no binary could be linked together (config.log > will > have the output of linking process. > > "against libboost_system": Take a look at config.log, you might find a line > with -lboost_system and the output of the linker, the most likely source is > that you don't have 'libboost-system' installed. > > And most interestingly, do you feel like introducing yourself, what you do, > what you will work on? > > holger > > > > ------------------------------ > > Message: 2 > Date: Thu, 15 Dec 2011 18:43:42 +0900 > From: Seungju Kim <admin(a)manateeshome.com> > Cc: "openbsc(a)lists.osmocom.org" <openbsc(a)lists.osmocom.org> > Subject: Re: omsosgsn test phone recommendation? > Message-ID: <3AF5AEBE-3698-4D73-918D-7246253DF11F(a)manateeshome.com> > Content-Type: text/plain; charset=utf-8 > > I can add the following phones to the list > > Apple iPhone 4 > Apple iPhone 3GS > > Samsung Omnia II > Samsung Galaxy S II > Samsung SGH-i780 > > HTC touch Diamond > > > Envoy? de mon iPhone > > Le Dec 15, 2011 ? 4:35 AM, Tobias Engel <t-openbsc(a)tobias.org> a ?crit : > > > Hi David, > > > > adding to Haralds list, I can confirm that the Nokia E71 also works. > > > > -Tobias > > > > On 14.12.2011 19:05, David A. Burgess wrote: > >> Harald - > >> > >> Thanks for the list. We'll try to find one of these. I have a few > iPhones sitting in front of me, but unfortunately they are all 850/1900 and > my available hardware is 900. :( > >> > >> Does you have an example GSMTAP/PCAP trace of a successful PDP context > activation using OmsoSGSN? That would be useful for comparison. (And do > you find the GPRS L3 & SNDCP decoding in the current Wireshark 1.7 to be > reliable?) > >> > >> -- David > >> > >> > >> > >> On Dec 14, 2011, at 1:36 AM, Harald Welte wrote: > >> > >>> Hi David, > >>> > >>> On Tue, Dec 13, 2011 at 09:37:19PM -0800, David A. Burgess wrote: > >>> > >>>> Can someone recommend a good smartphone for testing with OsmoSGSN? We > >>>> are having trouble getting our GPRS modem to recognize a ACTIVATE PDP > >>>> CONTEXT ACK message and are trying to determine if the error is in the > >>>> modem, in OmsoSGSN or somewhere in between. > >>> > >>> I've successfully used at least SE K800i, Google Nexus S, Dell Streak, > >>> HTC Hermes II, Motorola A780 here on my side. I know some other people > >>> have been using OsmoSGSN/OpenGGSN for iPhone related work, though I > >>> don't know which particular model they've used. > >>> > >>>> Better yet, is there anything out there that can generate an L2 or L3 > >>>> trace, like the Nokia 3310, but for GPRS as well as GSM? > >>> > >>> The only ones that come to my mind are the TEMS variants of the K800i, > >>> but those are of course hard to come by and/or expensive :/ > >>> > >>> Have you considered using Luca's work on gprsdecode? This way you > could > >>> do an air interface trace of what's happening between BTS and MS. > >>> > >>> 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) > >> > >> > >> > > > > > > > > > ------------------------------ > > _______________________________________________ > OpenBSC mailing list > OpenBSC(a)lists.osmocom.org > https://lists.osmocom.org/mailman/listinfo/openbsc > > > End of OpenBSC Digest, Vol 36, Issue 11 > *************************************** >

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Re: OpenBSC Digest, Vol 36, Issue 8
by Dick Rwegaba 15 Dec '11

15 Dec '11

dear pals please help with this error for gnuradio build checking for boost >= 1.35... yes checking for the pthreads library -lpthreads... no checking whether pthreads work without any flags... no checking whether pthreads work with -Kthread... no checking whether pthreads work with -kthread... no checking for the pthreads library -llthread... no checking whether pthreads work with -pthread... yes checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE checking if more special flags are required for pthreads... no checking whether the boost::thread includes are available... yes checking for exit in -lboost_thread-mt... yes checking whether the boost::date_time includes are available... yes checking for exit in -lboost_date_time-mt... yes checking whether the boost::system includes are available... yes configure: error: Could not link against libboost_system! root@debian:~/gnuradio# ^C On Mon, Dec 12, 2011 at 2:00 PM, <openbsc-request(a)lists.osmocom.org> wrote: > Send OpenBSC mailing list submissions to > openbsc(a)lists.osmocom.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.osmocom.org/mailman/listinfo/openbsc > or, via email, send a message with subject or body 'help' to > openbsc-request(a)lists.osmocom.org > > You can reach the person managing the list at > openbsc-owner(a)lists.osmocom.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of OpenBSC digest..." > > > Today's Topics: > > 1. slightly off the topic (Akib Sayyed) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 12 Dec 2011 10:28:24 +0530 > From: Akib Sayyed <akibsayyed(a)gmail.com> > To: "openbts-discuss(a)lists.sourceforge.net List" > <openbts-discuss(a)lists.sourceforge.net>, openbsc(a)lists.osmocom.org > Subject: slightly off the topic > Message-ID: > <CAMG-S91QY0FLChBfiG3g3n6w_WLinW9VQXsxbLqNra12VXk0ZQ(a)mail.gmail.com > > > Content-Type: text/plain; charset="utf-8" > > guys i wanted to know what gnuradio version is needed for airprobe. > i tried asking on airprobe list but dint got any repsonse. > > also i tried to compile gnuradio 3.1.2 but dint worked for me. > can any one please > explain?? > > > thanks in advance > > -- > Akib Sayyed > Matrix-Shell > akibsayyed(a)gmail.com > akibsayyed(a)matrixshell.com > Mob:- +91-966-514-2243 >

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RFC: Osmocom developer workshop 2012
by Harald Welte 14 Dec '11

14 Dec '11

<DISCLAIMER> Please follow-up to openbsc(a)lists.osmocom.org </DISCLAIMER> Hi all, this idea has been around for quite some time, and for 2012 I really want to turn it into reality: I'd like to have a Osmocom developer workshop The idea here is to get all the active contributors of the project together for a couple of days (maybe 2-4 days), in order to exchange ideas, get to know each other better and last but not least work together on ironing out some of the more difficult issues. * City: Regarding the location: I think for me it is only possible to organize it if it is to be held in Berlin. I'mn happy if somebody else wants to host it at some other location, but then that person would also have to take care of local organization. Berlin also has good train and flight connections, which is definitely a plus. * Venue: If it is in Berlin, we might consider talking with c-base or Raumfahrtagentur as possible venues. * Date: Regarding a proposed date, I'm completely open for suggestions. Of course there shouldn't be any overlap with other major FOSS or Sescurity related conferences, and it should also not coincide with major public holidays, as that only makes travel + accomodation more expensive. * Funding: As we don't have that many commercial users of Osmocom projects, getting funding for e.g. travel / accomodation is probably going to be difficult. We can ask the "usual suspects" among those commercial users we know,, but I guess it will only be possible in exceptional cases to provide that kind of funding. Any ideas / comments / feedback is much appreciated. If somebody has a particular suggestion. <DISCLAIMER> Please follow-up to openbsc(a)lists.osmocom.org </DISCLAIMER> Cheers, 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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omsosgsn test phone recommendation?
by David A. Burgess 14 Dec '11

14 Dec '11

Hi - Can someone recommend a good smartphone for testing with OsmoSGSN? We are having trouble getting our GPRS modem to recognize a ACTIVATE PDP CONTEXT ACK message and are trying to determine if the error is in the modem, in OmsoSGSN or somewhere in between. Better yet, is there anything out there that can generate an L2 or L3 trace, like the Nokia 3310, but for GPRS as well as GSM? -- David

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slightly off the topic
by Akib Sayyed 12 Dec '11

12 Dec '11

guys i wanted to know what gnuradio version is needed for airprobe. i tried asking on airprobe list but dint got any repsonse. also i tried to compile gnuradio 3.1.2 but dint worked for me. can any one please explain?? thanks in advance -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243

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