- baseband-devel - lists.osmocom.org

Calypso JTAG
by Drasko DRASKOVIC 08 Jun '11

08 Jun '11

Hi all, did anyone succeeded on attaching to JTAG port of Calypso ? I was looking at the docs here : http://bb.osmocom.org/trac/wiki/MotorolaC123, especially this : http://bb.osmocom.org/trac/attachment/wiki/MotorolaC123/compal_testpads.png, so I was wondering if someone has used JTAG, specifficaly with OpenOCD or UrJTAG ? I am planning to do some work on NuttX port, and I think that JTAG debugging would be very convenient for this kind of low level task. Also, I think that JTAG RAM flashing should be faster than current Osmocon RS232 method. Did anyone tried this and can osmocon be instructed that the code is already present in RAM, i.e. JTAG uploaded ? Best regards, Drasko

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IP hacking..
by Marten Christophe 08 Jun '11

08 Jun '11

Hello List, Sorry for out of scope question. Can any one suggest me community or mailing list for IP sniffing IP network hacking or account hacking, I'm planning to join for ethical hacking courses. Kind Regards,

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Searching for a studendt WAS( ANN: osmo-pcap a PCAP Client and Server application)
by Holger Hans Peter Freyther 07 Jun '11

07 Jun '11

On 06/03/2011 04:32 PM, Holger Hans Peter Freyther wrote: Hi all, I would like to get more students involved and would be interested in acting as a mentor. For the below osmo-pcap codebase I have a set of bite sized tasks (of different size) and it would be great if we could get some students to pick some of these. The only requirement should be interest to learn to program in C, some self motivation (e.g. use your favorite search engine before asking) but besides that the skills are not that important. cheers holger > Hi, > > I wrote a very primitive client and server for PCAP. The osmo_pcap_client will > use libpcap to sniff on a local link, we have the usual VTY interface to > configure it, one can change the filter and the device at runtime. > > There is also a very simple server that authenticates clients based on the > remote address, that will write the pcap files to disk. The files will be > rotated based on time and size, but also when the Link Header of a client is > changing. The traffic is not encrypted yet but that is on the todolist. > > The code can be found in our git repository[1]. > > holger > > [1] http://cgit.osmocom.org/cgit/osmo-pcap/ >

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Invitation
by weberbe＠ee.ethz.ch 05 Jun '11

05 Jun '11

Hi list First of all: Thanks to all of you who actively develop OsmocomBB. Second: In the past few months I worked on an interface between a GSM transceiver and ABB towards the mobile application from OsmocomBB. The findings will be presented Tuesday, May 31, 1.55 pm in ETZ J64 at ETH in Zurich (Gloriastrasse 35, 8092 Zürich). You are all invited. The goal of this project was to understand the GSM protocol flow better in order to be able to extend the hardware towards higher layers. To this end, the mobile application (L2 and L3) was used. Benjamin

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Dialling in roaming
by Bogdan Alecu 05 Jun '11

05 Jun '11

Hello, I've noticed during some tests made with a SIM in roaming that when I called myself I see my local number showed instead of the E.164 format number. In Wireshark I see that the numbering plan is set to unknown in this case (but this happens only when I select a specific operator). I started then to dial local numbers (while in roaming) and I could call any local number, from any network, without having to use the country code. Is this something that operators do? Cheers, Bogdan

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Testing protocol stack with OsmocomBB (cheap way)
by Drasko DRASKOVIC 05 Jun '11

05 Jun '11

Hi all, going through the documentation, I am trying to figure out what would be the best way to have whole protocol stack communication with OsmocomBB. Now, I understand that osmocon can be used to load layer1 into phones RAM, so that this code turns on Calypso and communicate with DSP with AT commands. Then osmocon gets messages from layer1 via RS232 and can distribute them to the mobile application, which sends them to layer23 for further processing or via GSM tap to Wireshark or outputs them on stdout. What I am most interested in how do we insert pacgaes on the other side of the stack, i.e. via telephone air interface (packets that will traverse through Rita, Iota, Calypso down to stdout of host). From what I understand we need some kind of BTS, and I can see that GNU Radio is used for this purpose. But for this, as I understand USPRP (http://en.wikipedia.org/wiki/Universal_Software_Radio_Peripheral) FPGA motherboard with both RX and TX doughterboards is needed, which can go up to 1k eur (too expensive for a hobbist). I was wondering so, what is the best and the cheapest way to inject packets at the protocol stack on the phone and analyze some packet flow later with Wireshark - i.e. to get some usage of the OsmocomBB and to see how it works. At this point I can only run Hello World application, or "mobile" app without any usage (or I do not know how to use it). What would be the best way to start playing around without spending too much money. Speaking of this, what would be the price of the cheapest existing packet generator that can transmit them via Um (i.e. what is the price of the cheapest BTS)? Is there some open source FPGA that can be used for this purpose? Thanks for your explanations and best regards, Drasko

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SIM related question
by Drasko DRASKOVIC 04 Jun '11

04 Jun '11

Hi all, after loading L1 to RAM and starting mobile app, "show cell" is giving me : OsmocomBB# show cell 1 arfcn |MCC |MNC |LAC |cell ID|forb.LA|prio |min-db |max-pwr|rx-lev -------+-------+-------+-------+-------+-------+-------+-------+-------+------- and OsmocomBB# network search 1 logs : <0002> gsm322.c:3099 (ms 1) Event 'EVENT_USER_RESEL' for automatic PLMN selection in state 'A6 no SIM inserted' <0002> gsm322.c:3106 Event unhandled at this state. I have inserted SIM in the phone, and I know that SIM controller driver is not functional on the master branch. However, is there something that can be done even in this state to have some packet logging in Wireshark ? I.e. do we need SIM for any communication over Um. I guess not, and I want to start at this state, and observe some packets that are traversing the stack for educational reasons. Can somebody point me how this can be done (with current master and no SIM functional). Best regards, Drasko

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Cygwin Windows --> Accessing serial port.
by R M 04 Jun '11

04 Jun '11

Hi, I am trying out osmocombb code in dell laptop running windows 7. It does't contain serial ports. I am using a USB to serial converter instead. How can I access the usb port to which the USB to serial converter is attached in cygwin ? Can someone who has done this, help me in this ? Regards, RM

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Memeories present in a mobile phone
by R M 04 Jun '11

04 Jun '11

Hi, What sort of memories does a mobile phone have ? Do they have something like Flash, ROM and RAM or only Flash memory? Regards, RM

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Interested to join the project
by pramod krishna 03 Jun '11

03 Jun '11

HI This is pramod. I am currently working with mobile platforms. How can i contribute to your project or start working with your project. -- Pramod Be happy

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