OpenBSC September 2019

openbsc@lists.osmocom.org

9 participants
17 discussions

C/C++ dialect defaults
by Oliver Smith 18 Sep '19

18 Sep '19

Hello Osmocom community, how about we set the C and C++ dialect defaults in for each Osmocom program? Then we would not run into the kind of errors, where code compiled without errors in the gerrit verification jenkins job, but failed to compile elsewhere because a different GCC uses different default dialects. We ran into this already with differences in gerrit verification and master builds [1], and it can easily happen when building the binary packages for the various Debian versions and derivatives in OBS. In [2] is an example patch for OsmoPCU, hardcoding the following dialects (gnu89 is the same as the linux kernel uses [3]). CXXFLAGS="$CXXFLAGS -std=gnu++03" CFLAGS="$CFLAGS -std=gnu89" (Note that we can't use the non-gnu dialects, libosmocore won't build with those.) Is anybody against doing this, or has other recommendations for dialects we should use? Regards, Oliver [1] https://osmocom.org/issues/3598 [2] https://gerrit.osmocom.org/c/osmo-pcu/+/15565 [3] https://github.com/torvalds/linux/commit/51b97e354ba9fce1890cf38ecc754aa496… -- - Oliver Smith <osmith(a)sysmocom.de> https://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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Looking for variables names that can be read via osmo-msc CONTROL interface
by Igor Lateliev 05 Sep '19

05 Sep '19

Dear osmocom-cni contributors, I would like to retrieve (i.e. read or get) some data from a running osmo-msc from the CONTROL interface... but sorry, currently I cannot find either from the manuals or the source code the name of variables I can query. Is there a mean to list all the variables that can be “GET” from the osmo-msc CONTROL interface? And… the list that can be “SET” through the osmo-msc CONTROL interface? I am also interested in other osmo-cni nodes. Thanks a lot in advance. BR, Igor.

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2019-09-10: Talk about commercial cellular base station technology
by Harald Welte 05 Sep '19

05 Sep '19

Dear Osmocom community and friends, Next week on September 10, I will be presenting a talk about cellular base station technology as part of the "Datengarten" series of talks at Chaos Computer Club Berlin (CCCB). The talk will focus on actual base station hardware as it evolved during the last 20 years or so. It will not assume much in terms of protocol stacks or cellular architecture, but more focus on the hardware building blocks. More information can be found at https://berlin.ccc.de/datengarten/102/ The event is public, so feel free to invite anyone along whom you think might be interested. Regards, Harald --- Abstract In today’s hyper-connected society, everyone constantly uses their smartphone, which in turn uses the commercial cellular networks (from 2G/GSM to 4G/LTE) in order to achieve connectivity. However, contrary to WiFi technology, even most technology-minded people don’t have much of an idea how the infrastructure behind those cellular networks looks like. This talk does not cover the architecture and protocols of underlying cellular systems, but focuses on the physical side of things: * what are the typical components of cellular base stations? * what are their key functionalities? * how did cellular base station technology evolve during the past 20 years? * how do we expect cellular base stations to change in the [near] future? We will not cover DIY or hobbyist projects here, but the actual technology deployed in the field by real-world commercial operators. --- -- - 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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ABIS Over SCTP Port 14597
by Borjan Jovanovski 03 Sep '19

03 Sep '19

Hi everyone! I have a BTS that is trying to connect to openbsc via SCTP, but as i see it is not supported. I have attached a capture file between the core network equipment and BTS 10.0.0.7 is the IP Address of the ABIS link and port is 14597 the rest is for UMTS and LTE so please ignore it. I would be really gratefull if someone could look into this Kind thanks to everyone!

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all cccamp2019 branches now on git.osmocom.com
by Alexander Couzens 03 Sep '19

03 Sep '19

Hi, i've pushed all modificatons from the chaos communication camp 2019 to the osmocom repositories as cccamp2019. Except for libosmo-abis which I directly pushed to gerrit. I would like to go next over the 35c3 branches, take a short overlook and remove them if them aren't useful. best, lynxis -- Alexander Couzens mail: lynxis(a)fe80.eu jabber: lynxis(a)fe80.eu gpg: 390D CF78 8BF9 AA50 4F8F F1E2 C29E 9DA6 A0DF 8604

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osmocom cni install (required elements)
by Anis Anis 02 Sep '19

02 Sep '19

HI first of all thanks for all the amazing work here! just wanna know after Adding the repository to the Ubuntu_18.04 system,what i need to do in order to install the osmocom cni? when trying apt-get install osmo,it will suggest all those : i just wanna know which elements are required to install! thanks osmo osmo-ggsn-dbg osmo-remsim-bankd osmo-bsc osmo-ggsn-doc osmo-remsim-client osmo-bsc-bs11-utils osmo-gsm-manuals-dev osmo-remsim-doc osmo-bsc-dbg osmo-gtphub osmo-remsim-server osmo-bsc-doc osmo-gtphub-dbg osmo-sdr osmo-bsc-ipaccess-utils osmo-hlr osmose-emulator osmo-bsc-meas-utils osmo-hlr-dbg osmo-sgsn osmo-bts osmo-hlr-doc osmo-sgsn-dbg osmo-bts-doc osmo-hnbgw osmo-sgsn-doc osmo-bts-trx osmo-hnbgw-dbg osmo-sip-connector osmo-bts-trx-dbg osmo-libasn1c0 osmo-sip-connector-dbg osmo-bts-virtual osmo-libasn1c-dev osmo-sip-connector-doc osmo-bts-virtual-dbg osmo-mgw osmosis osmocom-bs11-utils osmo-mgw-doc osmo-stp osmocom-bsc osmo-msc osmo-stp-dbg osmocom-bsc-nat osmo-msc-dbg osmo-stp-doc osmocom-gbproxy osmo-msc-doc osmo-sysmon osmocom-ipaccess-utils osmo-pcap-client osmo-sysmon-dbg osmocom-latest osmo-pcap-client-dbg osmo-trx osmocom-nitb osmo-pcap-server osmo-trx-dbg osmocom-sgsn osmo-pcap-server-dbg osmo-trx-doc osmo-gbproxy osmo-pcu osmo-trx-lms osmo-gbproxy-dbg osmo-pcu-dbg osmo-trx-uhd osmo-ggsn osmo-pcu-doc osmo-trx-usrp1 thanks.

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osmocom cni install
by Anis Anis 01 Sep '19

01 Sep '19

HI first of all thanks for all the amazing work here! just wanna know after Adding the repository to the Ubuntu_18.04 system,what i need to do in order to install the osmocom cni? thanks.

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OpenBSC September 2019