I want to try to alter the mobile app (in gsm48_rr.c) to listen to all tmsi's. i changed the code and altered all if statements where in the else part was the log 'Not for us'
i'm hoping the phone will start following the conversation with the immediate assignment packages... this way i can start logging the beginning of the encryption....
am i doing stupid things? or is there already an app that does this? thanks
Hi,
ccch_log already does show the paging requests and immediate assignments. have a look at the layer23 apps that are already existing.
as for logging a call, neither you modification nor this application can do it. this is because calls are on TCH logical channels (+channel hopping in real networks), but you only listen to the CCCH logical channel.
kevin
Excerpts from g.roelant's message of Sun Dec 09 14:00:14 +0100 2012:
I want to try to alter the mobile app (in gsm48_rr.c) to listen to all tmsi's. i changed the code and altered all if statements where in the else part was the log 'Not for us'
i'm hoping the phone will start following the conversation with the immediate assignment packages... this way i can start logging the beginning of the encryption....
am i doing stupid things? or is there already an app that does this? thanks
Heya
ccch_log already does show the paging requests and immediate assignments. have a look at the layer23 apps that are already existing.
Actually it is ccch_scan :).
Also take into consideration Sylvain's explanations[1] as pointed out in the documentation[2].
Kind regards Denis
[1] http://lists.osmocom.org/pipermail/baseband-devel/2010-December/000912.html [2] http://bb.osmocom.org/trac/wiki/Sniffing
in the help of ccch_scan there is not mentioned the -a option can this be added to the inline help of this app?
kind regards
ps. what can i do with the burst files? how can i analyze them?
----- Oorspronkelijk e-mail -----
Van: "Denis Simonet" denis.simonet@bluewin.ch Aan: "osmocomBB" baseband-devel@lists.osmocom.org Verzonden: Zondag 9 december 2012 20:44:32 Onderwerp: Re: another newbie question
Heya
ccch_log already does show the paging requests and immediate assignments. have a look at the layer23 apps that are already existing.
Actually it is ccch_scan :).
Also take into consideration Sylvain's explanations[1] as pointed out in the documentation[2].
Kind regards Denis
[1] http://lists.osmocom.org/pipermail/baseband-devel/2010-December/000912.html [2] http://bb.osmocom.org/trac/wiki/Sniffing
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