- OpenBSC - lists.osmocom.org

GAPK status update
by Vadim Yanitskiy 03 Dec '17

03 Dec '17

Dear Osmocom community, I have been working on GAPK (GSM Audio Packet Knife) for some time, and now I would like to share some achievements. Previously GAPK was represented as a single binary that could be called with some command line arguments in order to perform required operations. This is only handy for humans, but not for other programs, which may also need to perform some format / codec conversations or audio capture / playback. One of such programs is the mobile from OsmocomBB project. Currently, when you're making a voice call, both audio capture and playback are only possible on the L1 side, i.e. on a Calypso based phone. Of course, the audio stream can be redirected via MNCC socket, but this is not what a regular OsmocomBB user would like to do. Moreover, there is a lack of AMR codec support. Also, there is another GNURadio based project named GR-GSM. In short, this is a set of blocks for GSM signal reception, demodulation and further processing. At the moment, one has TCH Full Rate decoding capabilities only. Audio playback is not supported yet. Having these projects in my mind, I have got an idea of creating a shared library from the GAPK source code. And, a few days ago I was managed to get the audio playback working in OsmocomBB. I hope, this library will be also usable for other projects. Brief list of changes were made: - Composed a shared library named libosmogapk - All exposed symbols have got an 'osmo_gapk' prefix - Added a pkg-config manifest and a symbol export map - Integrated the Osmocom logging framework - Benchmarking is now disabled by default - Processing queue now based on the linuxlist - Fixed program exit due to ALSA buffer underrun - Fixed ALSA audio playback from file - Old gapk application was renamed to 'osmo-gapk' and linked against the library - Adjusted verbosity level (normal / debug) - Fixed I/O combinations (ALSA, RTP, file...) check All changes could be found at the fixeria/lib branch of GAPK. I hope to see them merged, and open for discussions ;) With best regards, Vadim Yanitskiy.

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Build failed in Jenkins: Coverity-Upload » linux_amd64_debian8 #1687
by jenkins＠lists.osmocom.org 03 Dec '17

03 Dec '17

See <http://jenkins.osmocom.org/jenkins/job/Coverity-Upload/label=linux_amd64_de…> ------------------------------------------ [...truncated 2.05 MB...] checking for style of include used by make... GNU checking dependency style of gcc... gcc3 checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking how to print strings... printf checking for a sed that does not truncate output... /bin/sed checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for fgrep... /bin/grep -F checking for ld used by gcc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B checking the name lister (/usr/bin/nm -B) interface... 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files are newer than configure... done configure: creating ./config.status config.status: creating include/Makefile config.status: creating include/osmocom/Makefile config.status: creating include/osmocom/msc/Makefile config.status: creating src/Makefile config.status: creating src/libmsc/Makefile config.status: creating src/libvlr/Makefile config.status: creating src/libcommon/Makefile config.status: creating src/libcommon-cs/Makefile config.status: creating src/osmo-msc/Makefile config.status: creating src/utils/Makefile config.status: creating tests/Makefile config.status: creating tests/atlocal config.status: creating tests/smpp/Makefile config.status: creating tests/sms_queue/Makefile config.status: creating tests/msc_vlr/Makefile config.status: creating doc/Makefile config.status: creating doc/examples/Makefile config.status: creating contrib/Makefile config.status: creating Makefile config.status: creating bscconfig.h config.status: executing tests/atconfig commands config.status: executing depfiles commands config.status: executing libtool commands + make -j 3 echo 1.1.2.37-b8acdc > .version-t && mv .version-t .version make all-recursive make[1]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc' Making all in doc make[2]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/doc' Making all in examples make[3]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/doc/examples' make[3]: Nothing to be done for 'all'. make[3]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/doc/examples' make[3]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/doc' make[3]: Nothing to be done for 'all-am'. make[3]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/doc' make[2]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/doc' Making all in include make[2]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include' Making all in osmocom make[3]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include/osmocom' Making all in msc make[4]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include/osmocom/msc' make[4]: Nothing to be done for 'all'. make[4]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include/osmocom/msc' make[4]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include/osmocom' make[4]: Nothing to be done for 'all-am'. make[4]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include/osmocom' make[3]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include/osmocom' make[3]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include' make[3]: Nothing to be done for 'all-am'. make[3]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include' make[2]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/include' Making all in src make[2]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/src' Making all in libcommon make[3]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/src/libcommon' CC bsc_version.o CC common_vty.o CC debug.o CC gsm_data.o CC gsm_data_shared.o CC gsup_client.o CC oap_client.o CC socket.o CC talloc_ctx.o CC gsm_subscriber_base.o CC gsup_test_client.o AR libcommon.a CCLD gsup_test_client make[3]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/src/libcommon' Making all in libvlr make[3]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/src/libvlr' CC vlr.o CC vlr_auth_fsm.o CC vlr_access_req_fsm.o CC vlr_lu_fsm.o AR libvlr.a make[3]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/src/libvlr' Making all in libmsc make[3]: Entering directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/src/libmsc' CC a_iface.o CC a_iface_bssap.o CC auth.o a_iface_bssap.c: In function ‘bssmap_rx_l3_compl’: a_iface_bssap.c:328:11: warning: assignment discards ‘const’ qualifier from pointer target type msg->l3h = TLVP_VAL(&tp, GSM0808_IE_LAYER_3_INFORMATION); ^ a_iface_bssap.c: In function ‘bssmap_rx_ciph_compl’: a_iface_bssap.c:424:12: warning: assignment discards ‘const’ qualifier from pointer target type msg->l3h = TLVP_VAL(&tp, GSM0808_IE_LAYER_3_MESSAGE_CONTENTS); ^ CC msc_vty.o CC db.o CC gsm_04_08.o db.c: In function ‘db_init’: db.c:607:2: warning: ‘dbi_initialize’ is deprecated (declared at /usr/include/dbi/dbi.h:169) [-Wdeprecated-declarations] dbi_initialize(NULL); ^ db.c:609:2: warning: ‘dbi_conn_new’ is deprecated (declared at /usr/include/dbi/dbi.h:199) [-Wdeprecated-declarations] conn = dbi_conn_new("sqlite3"); ^ db.c: In function ‘db_fini’: db.c:673:2: warning: ‘dbi_shutdown’ is deprecated (declared at /usr/include/dbi/dbi.h:171) [-Wdeprecated-declarations] dbi_shutdown(); ^ CC gsm_04_11.o CC gsm_04_14.o CC gsm_04_80.o CC gsm_subscriber.o CC mncc.o CC mncc_builtin.o CC mncc_sock.o CC msc_ifaces.o CC rrlp.o msc_ifaces.c: In function ‘msc_call_assignment’: msc_ifaces.c:255:42: error: ‘struct mgcp_client_conf’ has no member named ‘bts_base’ bts_base = mgcp_client_conf_actual(mgcp)->bts_base; ^ msc_ifaces.c:261:2: warning: ‘mgcp_msg_crcx’ is deprecated (declared at /home/osmocom-build/osmo-ci/coverity/install-Osmocom/include/osmocom/mgcp_client/mgcp_client.h:98): Use mgcp_msg_gen() instead [-Wdeprecated-declarations] msg = mgcp_msg_crcx(mgcp, conn->rtp.mgcp_rtp_endpoint, ^ msc_ifaces.c: In function ‘mgcp_bridge’: msc_ifaces.c:286:2: warning: ‘mgcp_msg_mdcx’ is deprecated (declared at /home/osmocom-build/osmo-ci/coverity/install-Osmocom/include/osmocom/mgcp_client/mgcp_client.h:103): Use mgcp_msg_gen() instead [-Wdeprecated-declarations] msg = mgcp_msg_mdcx(mgcp, ^ msc_ifaces.c: In function ‘msc_call_connect’: msc_ifaces.c:371:2: warning: ‘mgcp_msg_mdcx’ is deprecated (declared at /home/osmocom-build/osmo-ci/coverity/install-Osmocom/include/osmocom/mgcp_client/mgcp_client.h:103): Use mgcp_msg_gen() instead [-Wdeprecated-declarations] msg = mgcp_msg_mdcx(mgcp, ^ msc_ifaces.c: In function ‘msc_call_release’: msc_ifaces.c:417:2: warning: ‘mgcp_msg_dlcx’ is deprecated (declared at /home/osmocom-build/osmo-ci/coverity/install-Osmocom/include/osmocom/mgcp_client/mgcp_client.h:108): Use mgcp_msg_gen() instead [-Wdeprecated-declarations] msg = mgcp_msg_dlcx(mgcp, conn->rtp.mgcp_rtp_endpoint, ^ Makefile:492: recipe for target 'msc_ifaces.o' failed make[3]: *** [msc_ifaces.o] Error 1 make[3]: *** Waiting for unfinished jobs.... make[3]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/src/libmsc' Makefile:412: recipe for target 'all-recursive' failed make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc/src' Makefile:448: recipe for target 'all-recursive' failed make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory '/home/osmocom-build/osmo-ci/coverity/source-Osmocom/osmo-msc' Makefile:379: recipe for target 'all' failed make: *** [all] Error 2 [WARNING] Build command ./build_Osmocom.sh exited with code 2. Please verify that the build completed successfully. Emitted 956 C/C++ compilation units (100%) successfully 956 C/C++ compilation units (100%) are ready for analysis For more details, please look at: /home/osmocom-build/osmo-ci/coverity/source-Osmocom/cov-int/build-log.txt Build step 'Execute shell' marked build as failure

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Re: osmo-bts-trx init problem
by Vadim Yanitskiy 02 Dec '17

02 Dec '17

Hi, > <000b> trx_if.c:409 transceiver (phy0.0) rejected TRX command > with response: 'RSP SETTSC -1' > > What is the problem and how can fix it? The OsmocomBB transceiver is a legacy transceiver, so please add the following line to your 'osmo-bts.cfg': osmotrx legacy-setbsic And please let me know about the results, I'll correct the wiki. With best regards, Vadim Yanitskiy.

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Re: Build failure of network:osmocom:nightly/osmo-msc in Debian_9.0/x86_64
by Neels Hofmeyr 02 Dec '17

02 Dec '17

These osmo-msc failures are inadvertently caused by https://gerrit.osmocom.org/4701, which is a good change once https://gerrit.osmocom.org/4980 is ready. But until then, I decided to revert it in https://gerrit.osmocom.org/5126. We shall re-apply it as soon as 4980 is merged. I wasn't expecting osmo-msc to use the new client library but needing the old bts_base config -- which I probably applied myself of course, but that detail was lost to me in the meantime. ~N On Fri, Dec 01, 2017 at 08:19:16PM +0000, OBS Notification wrote: > Visit https://build.opensuse.org/package/live_build_log/network:osmocom:nightly/o… > > Package network:osmocom:nightly/osmo-msc failed to build in Debian_9.0/x86_64 > > Check out the package for editing: > osc checkout network:osmocom:nightly osmo-msc > > Last lines of build log: > [ 136s] from msc_ifaces.c:24: > [ 136s] /usr/include/osmocom/mgcp_client/mgcp_client.h:108:14: note: declared here > [ 136s] struct msgb *mgcp_msg_dlcx(struct mgcp_client *mgcp, uint16_t rtp_endpoint, > [ 136s] ^~~~~~~~~~~~~ > [ 136s] Makefile:508: recipe for target 'msc_ifaces.o' failed > [ 136s] make[4]: *** [msc_ifaces.o] Error 1 > [ 136s] make[4]: Leaving directory '/usr/src/packages/BUILD/src/libmsc' > [ 136s] Makefile:424: recipe for target 'all-recursive' failed > [ 136s] make[3]: *** [all-recursive] Error 1 > [ 136s] make[3]: Leaving directory '/usr/src/packages/BUILD/src' > [ 136s] Makefile:460: recipe for target 'all-recursive' failed > [ 136s] make[2]: *** [all-recursive] Error 1 > [ 136s] make[2]: Leaving directory '/usr/src/packages/BUILD' > [ 136s] Makefile:392: recipe for target 'all' failed > [ 136s] make[1]: *** [all] Error 2 > [ 136s] make[1]: Leaving directory '/usr/src/packages/BUILD' > [ 136s] dh_auto_build: make -j1 returned exit code 2 > [ 136s] debian/rules:45: recipe for target 'build' failed > [ 136s] make: *** [build] Error 2 > [ 136s] dpkg-buildpackage: error: debian/rules build gave error exit status 2 > [ 136s] > [ 136s] cloud120 failed "build osmo-msc_1.1.2.20171201.dsc" at Fri Dec 1 20:19:10 UTC 2017. > [ 136s] > [ 136s] ### VM INTERACTION START ### > [ 140s] [ 111.258730] reboot: Power down > [ 141s] ### VM INTERACTION END ### > [ 141s] > [ 141s] cloud120 failed "build osmo-msc_1.1.2.20171201.dsc" at Fri Dec 1 20:19:14 UTC 2017. > [ 141s] > > -- > Configure notifications at https://build.opensuse.org/user/notifications > openSUSE Build Service (https://build.opensuse.org/) -- - Neels Hofmeyr <nhofmeyr(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 * Geschäftsführer / Managing Directors: Harald Welte

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LimeSDR support in osmocom:{nightly,latest} package feeds
by Harald Welte 29 Nov '17

29 Nov '17

Dear all, starting from today, we're packaging LimeSuite and (as needed) other dependencies required for using osmo-trx/osmo-bts-trx with LimeSDR in the network:osmocom:nightly and network:osmocom:latest feeds. The package versions are fixed and are not tracking "master" of e.g. limesuite. Only the Osmocom packages are tracking master. Due to the unfortunate fact that the first LimeSuite with osmo-trx support (17.09.0) requiring a cmake later than what Debian 8 ships, LimeSDR support is not working with all of the Distributions/Versions that the rest of the Osmocom stack supports. It appears that LimeSuite also has some build issues on ARM architectures, about which I've submitted an upstream bug report at https://github.com/myriadrf/LimeSuite/issues/151 But at least for x86_64 and i586 architecture, LimeSDR should be supported by the Osmocom package feeds , on Debian 9.0, Ubuntu 16.04, 16.10, 17.04 and 17.10. We will shortly use those packages as part of our osmo-gsm-tester setup at the sysmocom lab, at which point they should receive extensive testing. 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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Eclipse TITAN public release of SS7/SIGTRAN core protocols
by Harald Welte 27 Nov '17

27 Nov '17

Hi all, I've mentioned this many months before, but Ericsson has now (well, a month ago) finally made a public announcement about the public release of their SS7/SIGTRAN core protocols in TTCN-3. You can read more about it at https://www.eclipse.org/forums/index.php/t/1089686/ - where they actually even refer to us as being the trigger to release them. There are still many tests to write beyond those currently existing. Most recently I wrote a set of MGCP tests for our new osmo-mgw, which Philipp is now using to iron out some kinks in the codebase. The past week I've been working on simulating the minimal subset of N numbers of BSCs and N numbers of MSCs from a single test suite in order to test osmo-bsc_nat, and specifically the "IMSI-based routing to different MSCs" feature that Daniel has been working on. It's still work in progress, but definitely the by far most complex TTCN-3 project that I've written so far. After completing that, I would like to spend some more time on OsmoBTS and OsmoBSC related tests. The difficulty here is that the more we get to the RAN / air interface, the less existing prtoocols / codecs exist, so e.g. A-bis RSL would first have to be implemented. The good part is that it's actually super easy using the expressive syntax of the TITAN "raw" codec. Basically you define the structure of the data in files like http://git.osmocom.org/osmo-ttcn3-hacks/tree/library/GSM_RR_Types.ttcn and you don't have to write a single line for encoding/parsing :) 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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Re: RFC: new type for NAS/EPS in gsmtap.h and question
by Shinjo Park 27 Nov '17

27 Nov '17

2017년 11월 23일 목요일 오후 10시 34분 47초 CET에 Harald Welte 님이 쓴 글: > On Thu, Nov 23, 2017 at 09:47:25PM +0100, Martin Heusse wrote: > > Harald, Shinjo, > > please find below is a tiny patch to add > > #define GSMTAP_TYPE_LTE_NAS 0x12 > > to packet-gsmtap.h > > and the corresponding code that uses it. > > great, feel free to push this to the wireshark gerrit. > > I've made a corresponding change in libosmocore, see > https://gerrit.osmocom.org/5018 > Forwarding the discussion at Wireshark gerrit at https://code.wireshark.org/ review/#/c/24554/4: Devices dumping NAS messages can give both encrypted and plain messages. At least for Qualcomm LTE basebands it is true. Therefore using sub_type for differentiating encrypted and plain NAS messages were discussed there. This will likely introduce another modifications to gsmtap.h, and therefore want to discuss more about this topic also here. Shinjo -- Shinjo Park <pshinjo(a)sec.t-labs.tu-berlin.de> Security in Telecommunications <sec.t-labs.tu-berlin.de> TU Berlin / Telekom Innovation Laboratories Ernst-Reuter-Platz 7, Sekr TEL 17 / D - 10587 Berlin, Germany Phone: +49 30 8353 58272

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OSMO-IUH
by Radiarisainana Sitraka 27 Nov '17

27 Nov '17

Hello, I heard that it's possible to connect to a femtocell without knowing Ki and Opc... of the sim-card like the conferences of Nico Golde and Ranvinshar on the poisoning the femtocell.My question is , is it possible to make the same with the osmo-iuh on the future !? Chears,

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load based handover
by Neels Hofmeyr 24 Nov '17

24 Nov '17

Hi Jolly, my current task is to implement load based handover between BTS, and in old tradition of adopting your code to implement dynamic timeslots on osmo-{bts,bsc}, I am now looking at the openbsc.git jolly/new_handover branch. I notice that, on that branch, there are improvements on the "old" handover, followed by a new elaborate handover_2 algorithm, which looks very sane at first sight, paired with an elaborate test suite. So my question is whether handover_2.c has some obvious shortcomings or open issues that need to be resolved before I can consider merging that to OsmoBSC's master branch. Should we still keep the "old" handover decision code around as well for particular reasons, or would it make sense to adopt handover_2.c by default? Is one better than the other in particular situations? And ... do you remember any high level conclusions from when you implemented the branch, things I should be aware of when testing and adopting the code? Did it work out as expected? How well tested is it? Thanks! ~N

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default point codes
by Neels Hofmeyr 24 Nov '17

24 Nov '17

Looking at https://osmocom.org/projects/cellular-infrastructure/wiki/Point_Codes OsmoMSC currently uses 0.23.1 for A-and-Iu, and 0.23.2 for Iu only if Iu is on a different cs7 instance than A (i.e. practically never). Either way that doesn't really make sense to me. If OsmoMSC is connecting to the same STP for A and Iu, it is sufficient to have one point-code for the two SSNs for A (BSSAP) and Iu (RANAP) and hence use one cs7 instance for both. If it is connecting to two different STPs, the point codes do not collide anyway, and it makes no sense to use a different one for Iu. It only confuses the defaults, e.g. the wiki page was wrong until I fixed it just now. I would rather have just 0.23.1 for the MSC for all SSNs. See ss7_setup() in msc_main.c. Agreed? ~N

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