baseband-devel

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2024 discussions

GAPK merge request
by Vadim Yanitskiy 14 Jan '18

14 Jan '18

Hi Sylvain, as you probably already know, I made a few changes in GAPK and now they are in a separate branch called 'fixeria/lib'. In a few words, the main idea of this set of changes is to compose a shared library called libosmogapk and add some basic test coverage. Please see: http://git.osmocom.org/gapk/log/?h=fixeria/lib As you're the maintainer and author of this project, I would like to ask you: is it possible to merge this branch into the mainline? At the moment, the new library is used by OsmocomBB, see: http://git.osmocom.org/osmocom-bb/commit/?h=fixeria/audio&id=0ed60f68b86b47… and moreover I am developing a set of GNU Radio blocks for GSM audio transcoding based on the GAPK library. Probably, some other projects may also benefit from a possibility to link against a shared library and use its features... If you support this idea, please let me know, which way of merging the branch is better for you: - using Gerrit, where I am not sure: if I will send a merge commit for review, would it 'drag' the whole long chain of commits, or the only one? - or using your write access rights. In both cases, I'll provide you detailed description of the merge commit. But first, I need to know your decision. With best regards, Vadim Yanitskiy.

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help : osmocombb transfer problem
by hao_zhang 10 Jan '18

10 Jan '18

sorry to bother you, i install openbsc and osmocombb in a pc. i want to transfer authentication information rand from osmocombb to openbsc, and transfer sres information from openbsc to osmocombb. What should I do? thanks zhanghao

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Building RFFE to work on MSM
by Marek Sebera 09 Jan '18

09 Jan '18

Hi, if following architecture is correct https://images.anandtech.com/doci/6541/RadioToday2.png What are currently available chips, using which we can build the RFFE part of BBP (such as Analog Devices ADF4602 or Avago ACPM-7600) so we can start working on UMTS/LTE software/protocol stack implementation on some commonly available Intel/ARM/AMD SoC (or multi-core SoC) ? If the RFFE part of BBP will be stable, work needed on MSM (Mobile Station Modem, i know it's Qalcomm's term) will be tremendous, but not unreal. Also might be partially ported current osmocomBB, but without working RFFE it is really hard to get the software started imho. Or is there something I don't get right now? Thank you Cheers! Marek

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Re: osmocomBB with osmo-bts stuck need help
by Vadim Yanitskiy 09 Jan '18

09 Jan '18

Hi, > I tried to install Jolly branch many times and this is > the debug result which always stop when sync to BTS. > > I was thinking the package is broken? testing with sylvain > is work, just like yesterday my registering still problem. > but this Jolly branch even cannot produce sync. Hmm, I just found out that both handover related commands are implemented in jolly/testing, but not in sylvain/testing: http://git.osmocom.org/osmocom-bb/tree/src/host/layer23/src/ transceiver/trx.c?h=jolly/testing#n440 http://git.osmocom.org/osmocom-bb/tree/src/host/layer23/src/ transceiver/trx.c?h=sylvain/testing#n369 You can implement a dummy command handler for sylvain/testing. Or use jolly's branch. But as I remember, there was a problem with some firmware images: http://osmocom.org/projects/baseband/wiki/Toolchain > note: as of 2013-10-20, if you use a toolchain with gcc >=4.8, > the firmware can be compiled, but will hang as soon as you want > to sync to an ARFCN. This issue has been fixed in master. > > http://cgit.osmocom.org/osmocom-bb/commit/ > ?id=a903b3c1ee27047c79728b18ff6340d23d1aad2e I think this information is enough to solve your problem. And moreover, we are using the openbsc mailing list, while there is a dedicated one. Let's finish this thread here. And good luck! With best regards, Vadim Yanitskiy.

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Use osmocombb and openbsc to do man-in-the-middle attacks
by 西电__张皓 25 Dec '17

25 Dec '17

Hello, I would like to use openbsc to do a fake base station and osmocombb to do an attack cell phone, to implement a man-in-the-middle attack. I have two questions: 1. How do I send location updates and authentication information between openbsc and osmocombb, 2. How to use imsi to initiate a location update thank you very much

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Libre baseband
by Marek Sebera 21 Dec '17

21 Dec '17

Hello everyone, Silly idea maybe, but would it be possible to port osmocom-bb for mediatek/intel/qualcomm BBP and replace the current firmware with open one? I presume it will be a tremendous amount of work, no doubts, but apart from that, is it theoretically and technically possible? Given root and/or hardware acces of course, we do not need to preserve the old firmware or exploit the update process (ie. if specific cert signature is needed for bbp-soc firmware update) Note that we do not have to be limited by existing software access to baseband, and we could use jtag/testpoints/wiring to access the BBP in a way that will be necessary, similar to way libreboot is currently being flashed. Thank you Marek Sebera

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help with burst_gen.py in faketrx
by Snehasish Kar 07 Dec '17

07 Dec '17

Hello I tried using burst_gen.py with grgsmtrx, as I can see in the screen, it shows that it has sent the burst to to grgsm trx, but I dont see any transmission from grgsm trx. Please help. Below are the logs of both burst_send.py and grgsm trx. Please let me know where I am going wrong. burst_gen.py ~/Downgrader/osmocom-bb-fixeria-trx/src/target/fake_trx$ python burst_gen.py -b NB -p 5700 -m TRX Copyright (C) 2017 by Vadim Yanitskiy <axilirator(a)gmail.com> License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. [i] Sending 1/1 NB burst (fn=1001550) to TRX... grgsm trx: ~/grgsmtrx_xenial/gr-gsm/apps$ sudo ./grgsm_trx Copyright (C) 2016-2017 by Vadim Yanitskiy <axilirator(a)gmail.com> License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. [i] Init Radio interface [INFO] [UHDlinux; GNU C++ version 4.8.4; Boost_105400; UHD_3.11.0.git-215-g3b206caa] [INFO] [NIRIO] rpc_client stopping... [INFO] [NIRIO] rpc_client stopped. [INFO] [NIRIO] rpc_client stopping... [INFO] [NIRIO] rpc_client stopped. [INFO] [X300] X300 initialization sequence... [INFO] [X300] Connecting to niusrpriorpc at localhost:5444... [INFO] [NIRIO] rpc_client stopping... [INFO] [NIRIO] rpc_client stopped. [INFO] [X300] Using LVBITX bitfile /usr/local/share/uhd/images/usrp_x310_fpga_HG.lvbitx... [INFO] [NIRIO] rpc_client stopping... [INFO] [NIRIO] rpc_client stopped. [INFO] [X300] Setup basic communication... [INFO] [X300] Loading values from EEPROM... [INFO] [X300] Setup RF frontend clocking... [INFO] [X300] Radio 1x clock:200 [INFO] [RFNOC] [DMA FIFO] Running BIST for FIFO 0... [INFO] [DEBUG] [DMA FIFO] Clock rate for BIST calculation: 0 [INFO] [RFNOC] pass (Throughput: 0.0MB/s) [INFO] [RFNOC] [DMA FIFO] Running BIST for FIFO 1... [INFO] [DEBUG] [DMA FIFO] Clock rate for BIST calculation: 0 [INFO] [RFNOC] pass (Throughput: 0.0MB/s) [INFO] [RFNOC RADIO] Register loopback test passed [INFO] [RFNOC RADIO] Register loopback test passed [INFO] [RFNOC RADIO] Register loopback test passed [INFO] [RFNOC RADIO] Register loopback test passed [INFO] [CORES] Performing timer loopback test... [INFO] [CORES] Timer loopback test passed [INFO] [CORES] Performing timer loopback test... [INFO] [CORES] Timer loopback test passed [WARNING] [MULTI_USRP] The hardware does not support the requested RX sample rate: Target sample rate: 1.083333 MSps Actual sample rate: 1.086957 MSps [INFO] [NIRIO] rpc_client stopping... [INFO] [NIRIO] rpc_client stopped. [INFO] [NIRIO] rpc_client stopping... [INFO] [NIRIO] rpc_client stopped. [WARNING] [MULTI_USRP] The hardware does not support the requested TX sample rate: Target sample rate: 1.083333 MSps Actual sample rate: 1.086957 MSps [i] Init CTRL interface [i] Init complete BR Snehasish

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Re: Tx support in MS with a virtual SIM
by Vadim Yanitskiy 07 Dec '17

07 Dec '17

Hi Ravi, > Can we make usrp to behave like a normal MS with parameters > of SIM in "test sim" feature from telnet. I am not using any > real SIM or writer. Yes, it's possible to use the virtual SIM-card, and this is exactly what we are doing during the SDR PHY development. Check out this example from FakeTRX: https://osmocom.org/projects/baseband/wiki/FakeTRX#Running-mobile-applicati… > As we pass the make command as " make nofirmware" from osmocombb/src > directory after enabling the " CFLAGS += -DCONFIG_TX_ENABLE " in > osmocom-bb/src/target/firmware, will it still be able to transmit ? No need to change the 'CONFIG_TX_ENABLE'. This affects only the firmware for Calypso based hardware. With best regards, Vadim Yanitskiy.

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Tx support in MS with a virtual SIM
by Ravi Shankar 07 Dec '17

07 Dec '17

Hello Community Can we make usrp to behave like a normal MS with parameters of SIM in "test sim" feature from telnet. I am not using any real SIM or writer. As we pass the make command as " make nofirmware" from osmocombb/src directory after enabling the " CFLAGS += -DCONFIG_TX_ENABLE " in osmocom-bb/src/target/firmware, will it still be able to transmit ? -- Best Regards. Ravi

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Re: [PATCH] mtk: fix firmware makefile to work with current osmocom-bb makefile system
by Vadim Yanitskiy 07 Dec '17

07 Dec '17

Hi Craig, Could you please provide a bit more detailed description of the change you've sent: what was wrong and what this change is intended to fix, so I'll push it to gerrit. Thanks! With best regards, Vadim Yanitskiy.

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