baseband-devel January 2022

baseband-devel@lists.osmocom.org

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Engagetted !
by Sébastien Lorquet 14 Oct '25

14 Oct '25

http://www.engadget.com/2010/12/29/researchers-eavesdrop-on-encrypted-gsm-c… Congrats!

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OsmoDevCon 2022 ?
by Harald Welte 28 Mar '22

28 Mar '22

Dear fellow Osmocom developers, as you all know, we've sadly had to skip OsmoDevCon 2020 and 2021, trying to compensate it at least to some extent with our OsmoDevCall every two weeks. The COVID-19 pandemic is far from over, and we don't know what the upcoming winter season will bring. Nevertheless, I think it would be a good idea to start a discussion of whether we should plan for an OsmoDevCon in 2022. I personally would say let's plan for the usual late April 2022 time frame, and if the pandemic situation deteriorates, we can still cancel it with something like one month lead time. I would also personally suggest to limit attendance to people who are fully vaccinated, and in addition do a self-test for all participants every morning. In terms of venue, we might also consider to move to a venue that allows better ventilation. Irrespective of the above we can also bring the air filters from the sysmocom office. So with that as an input statement, I would like to hear your opinion on the above proposals. Who would want to attend? Any complaints against the "vaccinated only plus daily self-tests in the morning" approach? Regards, Harald -- - Harald Welte <laforge(a)osmocom.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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OsmocomBB releases
by Denis 'GNUtoo' Carikli 01 Feb '22

01 Feb '22

Hi, As I understand it is now possible to have a full software GSM stack in software[1], with the stock osmocomBB since trx_toolkit target was merged in OsmocomBB. Many network side components have releases[2] and several distributions already have part of the osmocom stack packaged[3][4]. To me having releases for osmocomBB as well also look interesting as we could then more easily make packages for it. It could then be used to test the other components of the stack either with hardware[5] or with pure software, or to easily install and keep up to date the tools (osmocon, osmoload, etc). Would the osmocomBB be interested in doing releases? Or is there something that is preventing that from happening (lack of interest?, lack of time/volunteers?, technical issues?). References: ----------- [1]https://osmocom.org/projects/baseband/wiki/FakeTRX [2]https://projects.osmocom.org/news/152 [3]https://packages.debian.org/search?keywords=osmo&searchon=names&suite=sta… [4]https://packages.gentoo.org/packages/net-libs/libosmocore [5]As I understand, it would require either a test license or a specific hardware setup with cables, attenuator(s) and a duplexer/circulator and to enable transmit support. Denis.

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MT Call procedure
by Amirhosein naseri 18 Jan '22

18 Jan '22

Hi everyone. In MT Call flow must be as below MS BTS <- Setup Call Confirmed -> <- Assignment Command Assignment Completed -> Alerting -> Connect-> but in implemented code in mnccms.c file immediately after sending Call Confirmed message, Alerting message is sent from MS to BTS , and this lead to ignorance of Assignment Command from BTS. WHY the procedure implemented as this ???

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lists.osmocom.org migrated to mailman3
by Harald Welte 03 Jan '22

03 Jan '22

Dear Osmocom community, today our mailing list server lists.osmocom.org has finally been migrated from mailman2-on-freebsd to mailman3-on-linux. This also included a variety of changes to DNS. I'll spare you the details, but everything _should_ be up and running now. * The List-Id headers should not have changed. * all list subscriptions + user accounts have been converted. * old 'static html' archives are still available (read only) at URLs like https://lists.osmocom.org/pipermail/baseband-devel/ * old List URLs like https://lists.osmocom.org/mailman/listinfo/baseband-devel are redirected to their respective modern counterparts In case you notice any mailing list related problem, please don't hesitate to contact me. Happy hacking, Harald -- - Harald Welte <laforge(a)osmocom.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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None
by None 03 Jan '22

03 Jan '22

Thanks and Regards, RM On Sat, May 10, 2014 at 4:13 PM, Labs <rp.labs(a)gmx.ch> wrote: > Hello, > > In this case it can be some hardware issue with your phone. > If your phone was pre 4.24 software version and it was upgraded it is > possible to have a corrupted EEPROM and you need to use some software tools > to repair it. > > If that is not the case you can try to identify what hardware component is > broken by manually pickup a 900 or 1800 operator and check it if it works. > If one is working and one not this means your duplexer has issues and needs > to be replaced. Other components that might have issues are the PA and > COBBA ICs. Considering that a 3310 you can get for free now it's not worth > it to repair it. > > Regards, > R. > > > On 05/10/2014 05:21 PM, R M wrote: > >> Hi, >> >> The phone is not locked to any network. Its an unlocked phone. I have >> confirmed that. >> >> Thanks and Regards, >> RM >> >> >> On Sat, May 10, 2014 at 7:25 AM, Labs <rp.labs(a)gmx.ch >> <mailto:rp.labs@gmx.ch>> wrote: >> >> >> >> On 05/10/2014 12:51 PM, R M wrote: >> >> Hi, >> >> I have recently purchased a SIM card. When I use the SIM in >> Nokia 3310, >> and try to manually select a particular cell, it says no access. >> SIM >> belongs to the same network. >> >> >> Looks like your 3310 has a network lock. Are you sure that your >> phone is unlocked? You can test it with 2 different SIM cards for >> real networks and confirm that it is OK. DCT3 phones can be easily >> unlocked via IMEI. >> >> Regards, >> R. >> >> >> --089e0158c1089091e804f922f13b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr">Hi,<div><br></div><div>Thanks for your assistance.<div sty= le><br></div><div style>So far from my analysis, this is what I have got:</= div><div style><br></div><div style>After the BTS sends Location Update Acc= ept message to the MS, =C2=A0the MS responds with a MM status message sayin= g=C2=A0</div> <div style>"Invalid Mandatory Information".</div><div style><br><= /div><div style>In a working case, the MS should respond with a TMSI Reallo= cation Complete message which is not happening.</div></div><div style><br> </div><div style>From here, I don't know how to proceed further.</div><= div style><br></div><div style>Thanks and Regards,</div><div style>RM</div>= </div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Sat,= May 10, 2014 at 4:13 PM, Labs <span dir=3D"ltr"><<a href=3D"mailto:rp.l= abs(a)gmx.ch" target=3D"_blank">rp.labs(a)gmx.ch</a>></span> wrote:<br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex">Hello,<br> <br> In this case it can be some hardware issue with your phone.<br> If your phone was pre 4.24 software version and it was upgraded it is possi= ble to have a corrupted EEPROM and you need to use some software tools to r= epair it.<br> <br> If that is not the case you can try to identify what hardware component is = broken by manually pickup a 900 or 1800 operator and check it if it works. = If one is working and one not this means your duplexer has issues and needs= to be replaced. Other components that might have issues are the PA and COB= BA ICs. Considering that a 3310 you can get for free now it's not worth= it to repair it.<br> <br> Regards,<br> R.<div class=3D""><br> <br> On 05/10/2014 05:21 PM, R M wrote:<br> </div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-l= eft:1px #ccc solid;padding-left:1ex"> Hi,<br> <br><div class=3D""> The phone is not locked to any network. Its an unlocked phone. I have<br> confirmed that.<br> <br> Thanks and Regards,<br> RM<br> <br> <br> On Sat, May 10, 2014 at 7:25 AM, Labs <<a href=3D"mailto:rp.labs@gmx.ch"= target=3D"_blank">rp.labs(a)gmx.ch</a><br></div><div class=3D""> <mailto:<a href=3D"mailto:rp.labs@gmx.ch" target=3D"_blank">rp.labs(a)gmx.= ch</a>>> wrote:<br> <br> <br> <br> =C2=A0 =C2=A0 On 05/10/2014 12:51 PM, R M wrote:<br> <br> =C2=A0 =C2=A0 =C2=A0 =C2=A0 Hi,<br> <br> =C2=A0 =C2=A0 =C2=A0 =C2=A0 I have recently purchased a SIM card. When I us= e the SIM in<br> =C2=A0 =C2=A0 =C2=A0 =C2=A0 Nokia 3310,<br> =C2=A0 =C2=A0 =C2=A0 =C2=A0 and try to manually select a particular cell, i= t says no access. SIM<br> =C2=A0 =C2=A0 =C2=A0 =C2=A0 belongs to the same network.<br> <br> <br> =C2=A0 =C2=A0 Looks like your 3310 has a network lock. Are you sure that yo= ur<br> =C2=A0 =C2=A0 phone is unlocked? You can test it with 2 different SIM cards= for<br> =C2=A0 =C2=A0 real networks and confirm that it is OK. DCT3 phones can be e= asily<br> =C2=A0 =C2=A0 unlocked via IMEI.<br> <br> =C2=A0 =C2=A0 Regards,<br> =C2=A0 =C2=A0 R.<br> <br> <br> </div></blockquote> </blockquote></div><br></div> --089e0158c1089091e804f922f13b--

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None
by None 03 Jan '22

03 Jan '22

lot of advanced linux users. You can get help from them as well if you<br> still face issues as they can see your computer screen.<br> <br> Regards,<br> RM<br> </blockquote></div><br></div> --047d7b5da6c7ede59304ff644e64--

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None
by None 03 Jan '22

03 Jan '22

lot of advanced linux users. You can get help from them as well if you still face issues as they can see your computer screen. Regards, RM

1 0

None
by None 03 Jan '22

03 Jan '22

570.html=0AI read : "Calypso BTS uses tx_mask and rx_mask to define which s= lots to TX or RX"=0A=0AThen, when looking at the case for 3 phones and tryi= ng to modify tx_mask and rx_mask=0Afor TS 2 could it be=A0 something like t= his?=0A=0Aas -> l1[2].tx_mask=3D0x03 /* TS 2 */=0Aas -> l1[2].rx_mask=3D0x0= 3 /* TS 2 */=0Aas -> l1[1].tx_mask=3D0x02 /* TS 1 */=0Aas -> l1[1].rx_mask= =3D0x02 /* TS 1 */=0Aas -> l1[0].tx_mask=3D0xdf /* TS 5,6,7,0 */=0Aas -> l1= [0].rx_mask=3D0x01 /* TS 0 */=0A=0A=0A/regards=0Aerich =A0 =0A=0A=0A=0ADen = Mandag, 7. juli 2014 23.12 skrev Rusty Dekema <rdekema(a)gmail.com>:=0A =0A= =0A=0AOn Mon, Jul 7, 2014 at 3:55 PM, trixbox.t <trixbox.t(a)yandex.ru> wrote= :=0A=0Ahow to add third_phone for TS 2???=0A>=0A=0AOne would have to add at= least the code that accepts the -3, -4, etc option on the command line and= set up the transceiver data structures as appropriate. It is possible that= more work beyond this is needed; I haven't looked at it closely yet.=0A=0A= =0ACheers,=0ARusty D --1353131092-917766482-1404934660=:47158 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable <html><body><div style=3D"color:#000; background-color:#fff; font-family:He= lveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;fo= nt-size:12pt"><div style=3D"" class=3D""><span style=3D"" class=3D"">From h= ttp://lists.osmocom.org/pipermail/osmocom-commitlog/2013-February/003570.ht= ml<br style=3D"" class=3D"">I read : "Calypso BTS uses tx_mask and rx_mask = to define which slots to TX or RX"<br style=3D"" class=3D""><br style=3D"" = class=3D"">Then, when looking at the case for 3 phones and trying to modify= tx_mask and rx_mask<br style=3D"" class=3D"">for TS 2 could it be  so= mething like this?<br style=3D"" class=3D""><br style=3D"" class=3D"">as -&= gt; l1[2].tx_mask=3D0x03 /* TS 2 */<br style=3D"" class=3D"">as -> l1[2]= .rx_mask=3D0x03 /* TS 2 */<br style=3D"" class=3D"">as -> l1[1].tx_mask= =3D0x02 /* TS 1 */<br style=3D"" class=3D"">as -> l1[1].rx_mask=3D0x02 /= * TS 1 */<br style=3D"" class=3D"">as -> l1[0].tx_mask=3D0xdf /* TS 5,6,= 7,0 */<br style=3D"" class=3D"">as -> l1[0].rx_mask=3D0x01 /* TS 0 */<br style=3D"" class=3D""></span></div><div= style=3D"color: rgb(0, 0, 0); font-size: 16px; font-family: HelveticaNeue,= Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif; background-color: = transparent; font-style: normal;" class=3D""><br><span style=3D"" class=3D"= "></span></div><div style=3D"color: rgb(0, 0, 0); font-size: 16px; font-fam= ily: HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;= background-color: transparent; font-style: normal;" class=3D""><span style= =3D"" class=3D"">/regards</span></div><div style=3D"color: rgb(0, 0, 0); fo= nt-size: 16px; font-family: HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lu= cida Grande,sans-serif; background-color: transparent; font-style: normal;"= class=3D""><span style=3D"" class=3D"">erich   <br style=3D"" class= =3D""></span></div> <div class=3D"qtdSeparateBR"><br><br></div><div style= =3D"display: block;" class=3D"yahoo_quoted"> <div class=3D"" style=3D"font-= family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div class= =3D"" style=3D"font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial= , Lucida Grande, sans-serif; font-size: 12pt;"> <div style=3D"" class=3D"" = dir=3D"ltr"> <font style=3D"" class=3D"" face=3D"Arial" size=3D"2"> Den Man= dag, 7. juli 2014 23.12 skrev Rusty Dekema <rdekema(a)gmail.com>om>:<br st= yle=3D"" class=3D""> </font> </div> <br style=3D"" class=3D""><br style=3D= "" class=3D""> <div style=3D"" class=3D""><div style=3D"" class=3D"" id=3D"= yiv4491867648"><div style=3D"" class=3D""><div style=3D"" class=3D"" dir=3D= "ltr"><div style=3D"" class=3D""><div style=3D"" class=3D"" id=3D"yiv449186= 7648yqtfd12122"><div style=3D"" class=3D"">On Mon, Jul 7, 2014 at 3:55 PM, = trixbox.t <span style=3D"" class=3D"" dir=3D"ltr"><<a style=3D"" class= =3D"" rel=3D"nofollow" shape=3D"rect" ymailto=3D"mailto:trixbox.t@yandex.ru= " target=3D"_blank" href=3D"mailto:trixbox.t@yandex.ru">trixbox.t(a)yandex.ru= </a>></span> wrote:<br style=3D"" class=3D"" clear=3D"none">=0A<blockquo= te class=3D"" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding= -left:1ex;">=0Ahow to add third_phone for TS 2???<br style=3D"" class=3D"" = clear=3D"none"></blockquote><div style=3D"" class=3D""><br style=3D"" class= =3D"" clear=3D"none"></div><div style=3D"" class=3D"">One would have to add= at least the code that accepts the -3, -4, etc option on the command line = and set up the transceiver data structures as appropriate. It is possible t= hat more work beyond this is needed; I haven't looked at it closely yet.<br= style=3D"" class=3D"" clear=3D"none">=0A<br style=3D"" class=3D"" clear=3D= "none"></div><div style=3D"" class=3D"">Cheers,<br style=3D"" class=3D"" cl= ear=3D"none">Rusty D<br style=3D"" class=3D"" clear=3D"none"></div></div></= div></div></div></div></div><br style=3D"" class=3D""><br style=3D"" class= =3D""></div> </div> </div> </div> </div></body></html> --1353131092-917766482-1404934660=:47158--

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None
by None 03 Jan '22

03 Jan '22

And add some printf at voice.c when run bb, i used one c118, I can see that the voice data from L2/L3 to L1, and got some data from L1(the first char is 0xd) at l1ctr.c l1ctr_traffic_ind. All seem ok, but the called phone can not hear any data that LCR send, and the LCR also can not get any useful data. Especially I still can hear voice form C118 speaker that the called phone send, and the called phone can hear that the voice data the C118 michone send. But I already changed the audio mode in gsm48_rr.c at gsm48_rr_init. please give me some advice. best regards shrek

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baseband-devel January 2022