baseband-devel

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2022 discussions

Re: Emergency number
by Bogdan Alecu 07 Feb '11

07 Feb '11

>Do you run your own network? How do you plan to test your modifications? No, I'm not running my own network. I tried to make an emergency call and I got a voice saying to call to different numbers (police, fire dept, etc). That's why I need to know exactly what number is dialed from Osmocom and where I can modify it. I looked on the code but couldn't find (maybe I'm too tired).

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thinking about the sim
by Sébastien Lorquet 07 Feb '11

07 Feb '11

Hello, I was walking through trac while I came across this file: http://bb.osmocom.org/trac/browser/src/host/layer23/src/common/sim.c I see here: 183 /* send APDU to card reader */ 184 static int sim_apdu_send(struct osmocom_ms *ms, uint8_t *data, uint16_t length) 185 { 186 LOGP(DSIM, LOGL_INFO, "sending APDU (class 0x%02x, ins 0x%02x)\n", 187 data[0], data[1]); 188 l1ctl_tx_sim_req(ms, data, length); 189 return 0; 190 } ohoh, that's hardcoded. If we would like to have a software SIM, a SIM in a card reader on the PC, or a real sim in the MS, I think this would this be the correct place to plug a modular sim implementation. I mean something that looks like: struct osmocom_sim_ops { int (*sim_apdu_init)(.....); int (*sim_apdu_fini)(.....); void (*sim_op_reset)(.....); void (*sim_apdu_send)(.....); void (*sim_response_callback)(.....); }; void ms_register_sim_driver(struct osmocom_ms *ms, struct osmocom_sim_ops *ops); this could be a part of struct osmocom_ms. I would be easy to have 3 implementations: -sim in the mobile, using the current calls 'l1ctl_tx_sim_req' 'l1ctl_tx_sim_conf' -sim in PCSC using pcsclite or winscard, and a command-line option to select the reader (by index, by name, or first reader with a card inside for simple setups) -virtual sim using pure software What do you think about this? Regards Sebastien

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Emergency number
by Bogdan Alecu 07 Feb '11

07 Feb '11

Hello, What number is it dialed when I place the emergency call? Maybe you could also point me to where I find that number as I want to modify it. Thanks. Regards, Bogdan

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Re: GsmMap without GPS
by Bogdan Alecu 07 Feb '11

07 Feb '11

Hi all, Harald - I will put the sourcecode later on today. The reason I didn't was because the code it's not so clean and good - but it works. Martynas - my phone remain stationary and in fact I have over 40 cells (from other networks too). I don't find it to be a lot. About the precision, Google returned "accuracy":3875.0" which is surprisingly true. I was about 3-4km away from the final coordinates. Maybe I'll modify the code to give the position for each cell it finds. Tomas - No proprietary libraries, the code will be here in the evening. It's not so professional done, but considering that it took me somewhere around 30 minutes, I'm good with it. Regards, Bogdan

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GsmMap without GPS
by Bogdan Alecu 06 Feb '11

06 Feb '11

As I said in a previous post, I don't see why I need to have a GPS to get an approximation of my location. I then suggested using an open source cell list or Google API. So, I have just finished writing a program that parses your kml file from the gsmmap, send the request to Google and it will get your approx location (just like Google Maps on your mobile) and write the result in another kml file. The program is written in Java. To run it under windows: C:\Program Files\Java\jdk1.6.0_17\bin>java -jar glocation.jar Usage: glocation -i <path to input file> -o <output file> C:\Program Files\Java\jdk1.6.0_17\bin>java -jar glocation.jar -i c:\gsm.kml -o final.kml Name : MNC 03 (T-Mobile) Name : LAC 3030 Name : CELL-ID 0031 Name : CELL-ID 0032 Name : CELL-ID 135c Name : CELL-ID 24a7 Name : CELL-ID 4c2a Name : CELL-ID 4c31 Name : CELL-ID 4d10 Name : CELL-ID 51e3 Name : CELL-ID 537b Name : CELL-ID 5567 Name : CELL-ID 5f8a Name : LAC 4010 Name : CELL-ID 4c34 Name : CELL-ID 5b4b --------------------------------------- Sending data to Google... {"location":{"latitude":48.21451,"longitude":16.356414,"accuracy":511.0},"access _token":"2:BaEsaRey871FCt1e:A5vJ-lyJuPrukpMV"} lat=48.21451 long=16.356414

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Wiki & Osmocom.cfg
by Luca Antani 06 Feb '11

06 Feb '11

Hi list! Thanks to the mailing-list's archive i found how to activate the "sim reader" option on osmocom.cfg. Now i'm trying to find on the wiki some more infos about osmocom.cfg configuration, but seems to be missing. Some hints?! Thank you for attention Regards Luca

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how to dump phone firmware
by Scott Weisman 05 Feb '11

05 Feb '11

I recently acquired the Pirelli phone. I was wondering if there was a way to dump the stock firmware in the phone for exploration? Thanks, Scott

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Re: Non Standard Baud Rates?
by MATTHEW EVANS 04 Feb '11

04 Feb '11

*bump* Anyone have any thoughts / advice on this? Many Thanks, Matt. ----- Original Message ---- From: MATTHEW EVANS <mattjevans(a)btinternet.com> To: baseband-devel(a)lists.osmocom.org Sent: Friday, 21 January, 2011 21:08:36 Subject: Non Standard Baud Rates? Hi, I'm trying to get the burst_ind branch working at the higher speed baud rates. I have a USB to Serial FTDI Cable (FT232R) plus the T191. This setup works fine with the main trunk of osmocombb. When I fire up osmocon, layer1 appears to download to the phone and runs successfully. Osmocon then logs 'Received DOWNLOAD ACK from phone, your code is running now!'. The phone has layer1.bin displayed as usual. However it goes no further and just hangs. Could anyone please give any advice on what to try next? Thanks, Matt.

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Re: in deep trouble
by Bogdan Alecu 03 Feb '11

03 Feb '11

Make sure of the following: 1. Edit ~/.bashrc and put export PATH=$PATH:<YOURPATH>/install/bin , where "yourpath" is your full path to where arm-elf-gcc is located 2. restart your computer (sometimes it helps) 3. run the "make" under the same user that has the above path (no sudo make !!!)

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AGCH question.
by Leonardo Nve 03 Feb '11

03 Feb '11

Hi everyone. I´m coding a fuzzer with osmocombb API, I expect send you something good in a mounth or two (It depends how much work i have). I have two questions. First, I triying a simple SMS handler, to send and receive. With wireshark I don´t see RACH request, I suppose it is because the DSP inside the phone manage it, am I wrong? About this, I don´t have knowledge about electronics, so I don´t want touch, any filter. So I need to see the RACH of the same phone were osmo is running, not another. The second question is about SI AGCH response, I didn´t find the algorithm to know which SDCCH channel gives the BTS to the MS to send/recv LAPDm bursts. --- Leonardo Nve leonardo.nve(a)gmail.com ---

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