baseband-devel December 2013

baseband-devel@lists.osmocom.org

20 participants
42 discussions

c139/c140 jtag anyone?
by Craig Comstock 19 May '14

19 May '14

I'm at the point w/ flashing firmware where I feel like I need to use a debugger w/ JTAG. I figured I could probably use serial line logging somehow but JTAG seems better and I should learn it anyway. Has anyone pried open the shield on a c139/c140 and tried attaching to the JTAG test points that are just inside the shield next to the test points which are accessible via the battery compartment?

2 3

[PATCH] Add generic LE/BE load/store uint type convertors and use them in msgb
by ☎ 10 Mar '14

10 Mar '14

Attached is simple patch which adds little-endian & big-endian macro to move bytes to and from multibyte integer types like uint16_t, uint32_t etc. Some of this code is used right away in msgb.h but it will also be used in kasumi implementation later on. -- best regards, Max, http://fairwaves.ru

4 22

[PATCH] RFC - change GPRS cipher API
by ☎ 07 Mar '14

07 Mar '14

Hello. Attached is a trivial patch which breaks existing GPRS cipher API of libosmocore by switching from fixed 64-bit length Kc to variable-length. There are several justifications for that: - compliance with ETSI TS 155.22 (GEA4 - 128 bits Kc) and all further versions - similarity to existing auth api (osmocom/crypt/auth.h uses 128 bits as well) - nobody uses this API anyway (except my other patches with GEA) - patch breaks nothing within libosmocore (make check succeeds) and openbsc (uses gea0 only) That's why I think next libosmocore version should apply this patch and change unused API before someone actually start using it and makes transition more difficult. -- best regards, Max, http://fairwaves.ru

2 7

[PATCH] adjust msgb api
by ☎ 14 Jan '14

14 Jan '14

Hi. While looking at osmocom-bb compilation warnings I've noticed that there are plenty of those cause by signed-unsigned comparison with msgb-related functions. Attached is a trivial patch which fixes that by changing int -> uint16_t. For the sake of completeness I've also changed other functions to explicitly use uint16_t - this is used for length fields in "struct msgb" anyway. Although technically it's API change I do not expect any sane code to break. If you still think it's potentially insecure, this could be applied during next api version bump alongside with gprs api change. -- best regards, Max, http://fairwaves.ru

2 2

[PATCH] warnings cleanup
by ☎ 12 Jan '14

12 Jan '14

Hi all. I'd like to see osmocom-bb builds less cluttered by compiler warnings - attached is (far from complete) attempt to do so. It's tested which means it builds on my machine and resulting mobile app seems to run fine - no in-depth testing were made. However I'd like to get some feedback before going further: there seems to be some evil hackery happening around src/target/firmware/apps/loader/main.c: Why do we have external "unsigned char _start" which later used as msgb_put_u32(msg, &_start); Do we make some assumptions on the size of unsigned char? Is this documented somewhere by any chance? Also there are plenty of warnings regarding alignment: some things are marked as "__attribute__ ((packed))" and some are not which seems to make compiler unhappy. Is there rule of thumb to decide when we should care about alignment? -- best regards, Max, http://fairwaves.ru

2 1

what menu.e88loader.bin: No such file or directory
by warriornew 04 Jan '14

04 Jan '14

what menu.e88loader.bin: No such file or directoryI refer to this article :http://bb.osmocom.org/trac/wiki/flashing_newBut why can't find menu.e88loader.bin??Does anyone know?thanks -- View this message in context: http://baseband-devel.722152.n3.nabble.com/what-menu-e88loader-bin-No-such-… Sent from the baseband-devel mailing list archive at Nabble.com.

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OsmoDevCon 2014 / Date / Venue
by Harald Welte 01 Jan '14

01 Jan '14

Hi all, time is moving fast, and I want to start some initial discussion and planning for OsmoDevCon 2014. There are basically four questions which I'm raising below. Please provide your feedback to the osmocom-event-orga mailing list only, to avoid cross-posting over all the project lists. = Who? = My intention is to keep it an 'active developer/contributer only' event, like we had it before. I would also want to keep the group relatively small, to keep the 'Osmocom family' atmosphere. If desired, we could have one half or full day of public prsentations in a larger auditorium, but the developer meeting should be a close group, as known so far. = Where? = If we keep the number of attendees within the same range as this year, then I'm sure we could again hold it at the same venue. I know it is not perfect, but it is a place that we have access to, 24 hours per day, and free of cost for community projects like osmocom.org. If the community wants a larger event, then this is something that would require more funds and much more time organizing. And that is something that I personally could not offer to take care of, sorry. I'm happy to attend and support any larger events, but I'm unable to take care of fundraising and venue research. = When? = Q1/2014. In January, I'm not aware of any 'blocker' events. February, there is Fosdem (Feb 1 + Feb 2), and MWC from Feb 24 through Feb 27. In March there is CeBIT (March 10-14) and Easter holidays (with EasterHegg March 17-21). Did I miss any other FOSS / mobile event that might clash in Q1? So my preference woudl be to do it either late January (23-26) or in February (6-9 or 13-16). Any preferences regarding preferred schedule? Once we have some concencus here on the list [and we want to do it in the same size / venue], I'll talk to IN-Berlin. = What? = I think that question is easy to answer, if we have the above three figured out... There's no shortage of topics, I suppose. You can start adding your suggestions to http://openbsc.osmocom.org/trac/wiki/OsmoDevCon2014 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: GSM frequency band for Europe
by Anak Galer 31 Dec '13

31 Dec '13

On 12/27/13, neetesh saxena <saxenaneetesh061(a)rediffmail.com> wrote: > Hi everyone, > > Can anyone please tell me what is the GSM frequency band for Europe > (Germany)? > > Do I need to enable such band before working on OsmocomBB ? > > I have uploaded the mobile layer1 onto phone but I am still not able to read > the SIM. > The message I got is ms 1 is down and radio is not started. > > Can someone comment on this ? > > > > With regards > > Neetesh > > your sim not connect to network . or maybe you can try use Blackberry engineer mode for other options http://ngerepotin.blogspot.com/2013/12/bbem-blackberry-engineer-mode.html Cheers!

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Re: OsmoDevCon 2014 / Date / Venue
by Harald Welte 31 Dec '13

31 Dec '13

Dear all, just a quick reminder: On Sat, Nov 30, 2013 at 02:57:20PM +0100, Harald Welte wrote: > Please make sure to add your name to the list at > https://openbsc.osmocom.org/trac/wiki/OsmoDevCon2014 until December > 31st (latest). If you don't have a wiki account, ask somebody who has > one, apply for a wiki account or send an e-mail to me. so today is the last chance to indicate your intrest in attending OsmoDevCon. I'm surprised to not have seen the following names in the list: pablo, peter, nion, steve-m, dmitry, kaber. It would be great to have you around again this year. Looking forward to meeting all of you again! 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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OsmoComBB
by Milinko Isakovic 30 Dec '13

30 Dec '13

Hello, I need some help and maybe you are able to help me. Before I made any decision I need confirm some of things I do not fully understand. First of all I have some tests to preform and to make some report: I need to receive CCCH or part of CCCH like PCH and to store results. After this results are stored I need to analyze them with following: 1) How many paging requests came from 3 different operators at one LAC (I know each of them will have separate LAC) 2) Than I need to confirm how many paging requests came calling IMSI how much with TMSI 3) If it is possible to be done on one computer with 3 devices, or I will need more computers ? Question is because I need to do some reports. I do not need to monitor or intercept any encrypted data, to monitor SMS or any call.7 My question is is this possible ? And is there anybody who can help me to do this ? I found that some TEST equipment is capable to give me this results, but it is to expensive to me. Also if there is anybody in region of Balkan who was doing something like this please contact me. Project I need to finish is to monitor some number of days with Paging requests, and to make Prediction on what way and what speed GSM network will grow . Regards Milinko Isakovic

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baseband-devel December 2013