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4277 discussions

pySim pytlv dependency
by Neels Hofmeyr 20 Jul '18

20 Jul '18

Hi Philipp, just now I'm trying to use pySim to read a SIM card, but I notice: ImportError: No module named pytlv.TLV I can find no pytlv in the debian packaging; and I notice this dependency was added only recently. When going back to 859e0fd1ce08699930064c12fb9f7908ef972b50 I can use pySim fine without that. a) I think the readme should hint at dependencies that pySim requires, which should include pytlv and where to find it. b) In python, it is easy to import pytlv only in case it is actually used, which would simplify dependencies for users that don't need to "get file/record length from FCP (USIM)" -- would that make sense? What are your thoughts? ~N

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posting changes to existing patches (re large osmo-bsc patch)
by Neels Hofmeyr 19 Jul '18

19 Jul '18

TLDR: Tried to find another way of managing changes to a large patch on gerrit by submitting a merge-commit, but turns out not so useful. Just sharing findings. When I fix and change the current large osmo-bsc refactoring patch, on the one hand I'd like to squash new changes into it to commit the correct result right away. On the other hand, I want to keep the new changes in separate reviewable bits, so that reviewers don't need to read the entire patch again, and so that the new changes can be reviewed one by one, separately. So far my strategy was to add a new patch set for each small change. Now I thought it might make sense to have a non-fast-forward merge combining commits and review that. I tried it in the sandbox repos. Turns out that gerrit will have one patch for the merge-commit including the smaller commits, showing all combined changes. However, there will also be separate patches in the list for each single part of that merged commit. So there will be a series of small commits onto current master that need to be reviewed and merged one-by-one. And in the end that is followed by one basically useless merge-commit; meaning, if we got as far as accepting the smaller parts of that merge, we don't need to also merge that empty merge-commit, master already has gotten the smaller bits as separate commits. So the conclusion is that indeed pushing new small patch-sets onto the same large commit makes the most sense, and where changes stand on their own, separate follow-up patches make sense. ~N

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BSC LCLS tests
by Neels Hofmeyr 17 Jul '18

17 Jul '18

Hi Philipp, I notice that 5 of the LCLS tests in ttcn3_bsc_tests fail saying "unexpected number of MGW-MDCX transactions" pass->FAIL BSC_Tests_LCLS.TC_lcls_gcr_bway_connect pass->FAIL BSC_Tests_LCLS.TC_lcls_gcr_bway_connect_hr pass->FAIL BSC_Tests_LCLS.TC_lcls_gcr_bway_codec_mismatch ... pass->FAIL BSC_Tests_LCLS.TC_lcls_connect_break pass->FAIL BSC_Tests_LCLS.TC_lcls_connect_clear It appears that your osmo-ttcn3-hacks change "BSC_Tests: count MGCP operations in as_media" lacks the proper MGCP operation counts for the LCLS tests? (The tests have been broken for four days) https://jenkins.osmocom.org/jenkins/view/TTCN3/job/ttcn3-bsc-test/test_resu… Could you fix that plz? Thanks! ~N

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Fw: Osmotrx compatibility with LimeSDR mini
by Babar Ali 16 Jul '18

16 Jul '18

I have build following components from source. 1. SoapySDR v0.6.12. Lime Suite v18.06.03. UHD v3.12.0.0-rc14. SoapyUHD v0.3.45. osmo-trx v0.4.0 configure --with-lms6. osmo-nitb7. osmo-bts-trx however i have only following options are available with osmo-trx root@miniBTS:/home/pi/osmocom/osmo-trx# osmo-trx-lms -h Options: -h This text -C Filename The config file to use -V Print the version of OsmoTRX I have run each instance in separate windows but I cannot show network, log file of following screens along with config files attached. would you please help me whats going wrong, I am newbie terminal 1 : osmo-trx-lms -C osmo-trx-limesdr.configterminal 2: osmo-nitb -c openbsc.configterminal 3: osmo-bts-trx -c osmobts.config attached config files have grabbed from https://github.com/myriadrf/cellular-network-configs/tree/master/osmocom Regards Babar Ali On Saturday, 14 July 2018, 4:31:43 AM GMT+5, Pau Espin Pedrol <pespin(a)sysmocom.de> wrote: Hi Babar, If you want to use a LimeSDR-mini, you should build latest master, and use osmo-trx-lms binary. To generate that binary, you first need to build and install latest LimeSuite master [1], and then build osmo-trx with --with-lms configure flag. As you are building for raspberry pi3, you may want to enable instruction set optimizations as explained in the user manual section "12 OsmoTRX hardware architecture support" [2]. Have a look at the wiki page too for further information [3]. Also a reminder: we have osmo-trx-lms already available as a debian package for debian9 [4], but I think we don't enable NEON on that build. [1] https://github.com/myriadrf/LimeSuite [2] http://ftp.osmocom.org/docs/latest/osmotrx-usermanual.pdf [3] https://osmocom.org/projects/osmotrx/wiki/OsmoTRX [4] https://download.opensuse.org/repositories/network:/osmocom:/nightly/Debian… On 12/07/18 01:36, Babar Ali wrote: > Hi Harald > > Thank very much for your support please, i’ll test & share the results. > > Further kindly let me clear one more thing please, can I build osmotrx > on RaspbianOS, I have already tried to build osmotrx v0.3 on RasbianOS > it was build successfully but when I run osmo-trx —help, it shows only > one option that is -C which I can use with osmo-trx, no other options > are available, is it cannot be build completely on raspberry pi 3? or > what’s gone wrong? any suggestions/comments in this regard please. > > Thank you for your support & time please. > > Regards > Babar > > On Thursday, July 12, 2018, 1:26 AM, Harald Welte <laforge(a)gnumonks.org> > wrote: > > On Wed, Jul 11, 2018 at 04:53:54PM +0000, Babar Ali wrote: > > > Anyone has an experience of Setuping 2G Network using NITB & > LimeSDR Mini, which version of osmotrx is working fine with LimeSDR > Mini. > > > We have seen very good results using the new osmo-trx-lms with > LimeSDR-mini. > > -- > - Harald Welte <laforge(a)gnumonks.org <mailto:laforge@gnumonks.org>> > http://laforge.gnumonks.org/ > ============================================================================ > "Privacy in residential applications is a desirable marketing option." > (ETSI EN 300 > 175-7 <tel:300%20175-7> Ch. A6) > -- - Pau Espin Pedrol <pespin(a)sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Director: Harald Welte

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Osmotrx compatibility with LimeSDR mini
by Babar Ali 15 Jul '18

15 Jul '18

Anyone has an experience of Setuping 2G Network using NITB & LimeSDR Mini, which version of osmotrx is working fine with LimeSDR Mini. Thank You Regards Babar

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Multiple osmo-trx-xxx
by Antony Lemmens 13 Jul '18

13 Jul '18

Hello, I am trying some setup to have multiple channels working all together: I have an UmTRX and a LimeSDR boards working fine. The problem is that I cannot launch osmo-trx-uhd and osmo-trx-lms at the same time as the VTY TCP port are defined in libosmocore. Is it a way of disabling the VTY or change the TCP port it listen to? Have a nice day, Antony

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Multi-arfcn multiplexing over same physical channel
by Antony Lemmens 13 Jul '18

13 Jul '18

Hi there, I'm really happy to make my LimeSDR working with the master branch, good job guys! I'm now trying to enable the multi-arfcn multiplexed over one physical channel but I do not succeed to have it working (No response from transceiver for phy0.1 (CMD RXTUNE 894000)). Do I need to configure or pass some parameters (see further for what I'm doing)? I am starting osmo-bts-trx with "-t 2" option, and here is the extract of part of my configuration file: ----- osmo-trx-lms.cfg trx multi-arfcn enable swap-channels disable egprs enable tx-sps 4 rx-sps 4 chan 0 tx-path BAND1 rx-path LNAW ----- osmo-bts-trx.cfg phy 0 instance 0 osmotrx rx-gain 10 phy 0 instance 1 osmotrx rx-gain 10 bts 0 band 900 trx 0 phy 0 instance 0 trx 1 phy 0 instance 1 ----- osmo-bsc.cfg bts 0 type sysmobts band GSM900 trx 0 arfcn 10 trx 1 arfcn 20 Thanks in advance, Antony

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cancellation of build1.osmocom.org
by Harald Welte 05 Jul '18

05 Jul '18

Hi! We've not used the old build1.osmocom.org machine since late April, so I am finally pulling the plug and cancelling the contract as of tomorrow. I manually looked around and the only parts that looked worth backing up was ~osmocom-build/neels which I've now copied over to build2.osmocom.org:~root/neels/from_build1/ 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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osmo-bsc refactoring / inter-BSC handover
by Neels Hofmeyr 03 Jul '18

03 Jul '18

Good morning, I wanted to get inter-BSC handover complete before today, and worked like a maniac for the last two weeks. I'm looking forward to your comments on the osmo-bsc rework, which started so small and rippled through the entire code base like a flash flood. I hope you will find review of it not too daunting, it fully qualifies as a code bomb. It is refactoring no less than: - dynamic timeslots, - lchan states from allocation through release, - assignment, - handover - handling of MGW endpoints, and - the conn FSM. - gsm_network->T123 timer handling, - the way a BTS's neighbors are configured, - handover and assignment rate counters, - and whatnot. - adding five new FSM implementations to osmo-bsc, - and actually adding inter-BSC Handover, both sides (almost). Of course I couldn't wrap things up completely, but the good news is that the only problem left now is that I can't get a ttcn3 test written for inter-bsc MT handover [1]. Consider the MT side broken yet, though it should be small fixes. So the refactoring is done and all ttcn3-bsc-tests pass. Yes, *all*! I will now submit the patches to gerrit; some though could want to go to libosmocore, and for some other "neat" inventions of mine I'm watching the comment space in curiosity. I did try to separate some changes into individual commits, but the final chunk is too inter-related to pull it apart without spending huge amounts of time to make osmo-bsc work for each intermediate state. I feel both like saying "sorry" and "you're welcome" about this at the same time. Sorry about the size of the single patch; but a lot of code got extremely easier to read and follow, and a lot safer too, into a nicer osmo-bsc future. ~N [1] I have a marginal test added for inter-bsc MO, but the inter-bsc MT gets me. The problem there is that it is the first time a conn is initiated by the MSC side. I can get that to work by using BSSAP on that Test_CT. It goes well up to the point where osmo-bsc sends MGCP CRCX and expects a response. Now I want to use the MSC_ConnHdlr to manage MGCP, but I can't for the life of me figure out how to be able to do both at the same time. I tried for very long to resolve "BSC_Tests.ttcn:2755.13-2756.31: error: Message type `(a)BSSAP_CodecPort.BSSAP_N_CONNECT_req' is not present on the outgoing list of port type `(a)BSSMAP_Emulation.BSSAP_Conn_PT'" but it feels like a brick wall... It's the final thing before I can say: I'm done, take a look at inter-BSC HO.

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osmo-bsc with remote osmo-stp.
by Andrew Back 22 Jun '18

22 Jun '18

Hello, I've had success with running a NITB based on the new architecture fine when everything is on one host. However, I'd now like to split this across multiple hosts. I have one host dedicated to running osmo-stp and this appears to bind to the IP specified. However, the instance of osmo-bsc running on another host always fails to connect and I think, despite configuring to use a remote STP, it's trying localhost. Packages installed from Debian 9.0/latest repo. Configs and osmo-bsc output below. Any pointers as to where I'm going wrong would be much appreciated. Regards, Andrew // **** osmo-bsc output: $ sudo /usr/bin/osmo-bsc -c /etc/osmocom/osmo-bsc.cfg <001d> osmo_ss7.c:1269 0: ASP Restart for server not implemented yet! % GPRS not enabled on this BTS % GPRS not enabled on this BTS % GPRS not enabled on this BTS % GPRS not enabled on this BTS % GPRS not enabled on this BTS % GPRS not enabled on this BTS % Line 0 already exists <0011> telnet_interface.c:104 telnet at 10.1.1.7 4242 <0013> input/ipaccess.c:853 enabling ipaccess BSC mode on 10.1.1.7 with OML 3002 and RSL 3003 TCP ports <0018> control_if.c:863 CTRL at 127.0.0.1 4249 <0008> osmo_bsc_sigtran.c:427 Initializing SCCP connection to MSC msc-0 <0008> osmo_bsc_sigtran.c:437 CS7 Instance identifier, A-Interface: 0 <001e> sccp_user.c:397 msc-0: Using SS7 instance 0, pc:0.0.2 <001e> sccp_user.c:411 msc-0: Creating AS instance <001e> sccp_user.c:421 msc-0: Using AS instance as-clnt-msc-0 <001e> sccp_user.c:426 msc-0: Creating default route <001e> sccp_user.c:446 msc-0: Creating ASP instance <0011> socket.c:266 unable to connect socket: (null):2905: Connection refused <0011> socket.c:279 no suitable remote addr found for: (null):2905 <001d> osmo_ss7.c:1253 0: Unable to open stream client for ASP asp-clnt-msc-0 <001e> sccp_user.c:481 msc-0: Using ASP instance asp-clnt-msc-0 <001e> sccp_user.c:484 msc-0: Creating SCCP instance <0008> osmo_bsc_sigtran.c:480 (msc-0) A-interface: local (BSC) SCCP address: RI=SSN_PC,PC=0.0.2,SSN=BSSAP <0008> osmo_bsc_sigtran.c:482 (msc-0) A-interface: remote (MSC) SCCP address: RI=SSN_PC,PC=0.0.1,SSN=BSSAP <0013> input/ipa.c:265 accept()ed new link from 10.1.1.8 to port 3002 <0005> abis_nm.c:506 BTS0 feature 'EGPRS' reported via OML does not match statically set feature: 0 != 1. Please fix. <0005> abis_nm.c:506 BTS0 feature 'OML Alerts' reported via OML does not match statically set feature: 1 != 0. Please fix. <0005> abis_nm.c:506 BTS0 feature 'Fullrate speech V1' reported via OML does not match statically set feature: 1 != 0. Please fix. <0005> abis_nm.c:506 BTS0 feature 'Halfrate speech V1' reported via OML does not match statically set feature: 1 != 0. Please fix. <0005> abis_nm.c:506 BTS0 feature 'Fullrate speech EFR' reported via OML does not match statically set feature: 1 != 0. Please fix. <0005> abis_nm.c:506 BTS0 feature 'Fullrate speech AMR' reported via OML does not match statically set feature: 1 != 0. Please fix. <0005> abis_nm.c:506 BTS0 feature 'Halfrate speech AMR' reported via OML does not match statically set feature: 1 != 0. Please fix. <0005> abis_nm.c:573 OC=BTS(01) INST=(00,ff,ff): BTS0: ARI reported sw[0/2]: osmobts is 0.8.1 <0005> abis_nm.c:445 BTS0 reported variant: omso-bts-trx <0005> abis_nm.c:467 BTS0 Attribute Manufacturer Dependent State is unreported <0005> abis_nm.c:573 OC=BTS(01) INST=(00,ff,ff): BTS0: ARI reported sw[0/1]: TRX_PHY_VERSION is Unknown <0005> abis_nm.c:2809 IPA RSL CONNECT IP=0.0.0.0 PORT=3003 STREAM=0x00 <0013> input/ipa.c:265 accept()ed new link from 10.1.1.8 to port 3003 <0004> bsc_init.c:333 bootstrapping RSL for BTS/TRX (0/0) on ARFCN 868 using MCC-MNC 901-70 LAC=23 CID=0 BSIC=63 <0004> abis_rsl.c:2502 (bts=0,trx=0,ts=2,pchan=TCH/F_TCH/H_PDCH as NONE): GPRS mode is 'none': not activating PDCH. <0004> abis_rsl.c:2502 (bts=0,trx=0,ts=3,pchan=TCH/F_TCH/H_PDCH as NONE): GPRS mode is 'none': not activating PDCH. <0004> abis_rsl.c:2502 (bts=0,trx=0,ts=4,pchan=TCH/F_TCH/H_PDCH as NONE): GPRS mode is 'none': not activating PDCH. <0004> abis_rsl.c:2502 (bts=0,trx=0,ts=5,pchan=TCH/F_TCH/H_PDCH as NONE): GPRS mode is 'none': not activating PDCH. <0004> abis_rsl.c:2502 (bts=0,trx=0,ts=6,pchan=TCH/F_TCH/H_PDCH as NONE): GPRS mode is 'none': not activating PDCH. <0008> a_reset.c:92 A-RESET(msc-0)[0x1d6fff0]{DISC}: (re)sending BSSMAP RESET message... <0008> osmo_bsc_sigtran.c:92 Sending RESET to MSC: RI=SSN_PC,PC=0.0.1,SSN=BSSAP <001d> m3ua.c:507 XUA_AS(as-clnt-msc-0)[0x1d6f7e8]{AS_DOWN}: Event AS-TRANSFER.req not permitted <0008> a_reset.c:92 A-RESET(msc-0)[0x1d6fff0]{DISC}: (re)sending BSSMAP RESET message... <0008> osmo_bsc_sigtran.c:92 Sending RESET to MSC: RI=SSN_PC,PC=0.0.1,SSN=BSSAP <001d> m3ua.c:507 XUA_AS(as-clnt-msc-0)[0x1d6f7e8]{AS_DOWN}: Event AS-TRANSFER.req not permitted <0011> socket.c:266 unable to connect socket: (null):2905: Connection refused <0011> socket.c:279 no suitable remote addr found for: (null):2905 <0008> a_reset.c:92 A-RESET(msc-0)[0x1d6fff0]{DISC}: (re)sending BSSMAP RESET message... <0008> osmo_bsc_sigtran.c:92 Sending RESET to MSC: RI=SSN_PC,PC=0.0.1,SSN=BSSAP <001d> m3ua.c:507 XUA_AS(as-clnt-msc-0)[0x1d6f7e8]{AS_DOWN}: Event AS-TRANSFER.req not permitted ^Csignal 2 received <0005> bsc_init.c:96 shutting down OML for BTS 0 **** osmo-bsc.cfg: e1_input e1_line 0 driver ipa ipa bind 10.1.1.7 cs7 instance 0 point-code 0.0.2 asp circ-OsmoBSC 2905 0 m3ua remote-ip 10.1.1.5 sccp-address msc_remote point-code 0.0.1 line vty bind 10.1.1.7 msc msc-addr msc_remote network network country code 901 mobile network code 70 bts 0 type sysmobts band GSM-1800 location_area_code 23 ip.access unit_id 1800 0 gprs mode none gprs nsvc 0 remote ip 192.168.0.9 gprs nsvc 0 remote udp port 23000 gprs nsvc 0 local udp port 23000 gprs nsvc 0 nsvci 1800 gprs nsei 1800 gprs cell bvci 1800 trx 0 rf_locked 0 arfcn 868 nominal power 23 timeslot 0 phys_chan_config CCCH+SDCCH4 timeslot 1 phys_chan_config SDCCH8 timeslot 2 phys_chan_config TCH/F_TCH/H_PDCH timeslot 3 phys_chan_config TCH/F_TCH/H_PDCH timeslot 4 phys_chan_config TCH/F_TCH/H_PDCH timeslot 5 phys_chan_config TCH/F_TCH/H_PDCH timeslot 6 phys_chan_config TCH/F_TCH/H_PDCH timeslot 7 phys_chan_config PDCH e1_input e1_line 0 driver ipa msc 0 mgw remote-ip 10.1.1.6 mgw remote-port 2427 allow-emergency deny codec-list hr3 **** osmo-stp.cfg: log stderr logging filter all 1 logging color 1 logging print category 1 logging timestamp 0 logging level lss7 debug logging level lsccp debug logging level lsua debug logging level lm3ua debug cs7 instance 0 xua rkm routing-key-allocation dynamic-permitted listen m3ua 2905 accept-asp-connections dynamic-permitted local-ip 10.1.1.5 listen sua 14001 local-ip 10.1.1.5 line vty bind 10.1.1.5

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