8 Nov
2012
8 Nov
'12
5:34 p.m.
Hello,
I am interested in modifying the firmware of the simtrace device to
perform modifications on the data sent back to the phone. Is there any
documentation on how this can be done? I could not find any on the
website. I looked at the source a little bit but I am hoping someone
here can give me a jump-start on the best way to do this.
Thanks,
Sam W.
8 Nov
8 Nov
5:37 p.m.
Hi,
I am interested in modifying the firmware of the
simtrace device to
perform modifications on the data sent back to the phone. Is there any
documentation on how this can be done? I could not find any on the
website. I looked at the source a little bit but I am hoping someone
here can give me a jump-start on the best way to do this.
The current simtrace fw is passive listener only AFAIK.
If you want to do MITM you pretty much need an entire new firmware
mode, so feed free to design it like you want.
Cheers,
Sylvain
9 Nov
9 Nov
8:47 a.m.
On Thu, Nov 08, 2012 at 08:34:46AM -0800, Samuel Weinbeck wrote:
Hello,
I am interested in modifying the firmware of the simtrace device to
perform modifications on the data sent back to the phone. Is there any
documentation on how this can be done? I could not find any on the
website. I looked at the source a little bit but I am hoping someone
here can give me a jump-start on the best way to do this.
Hi,
general information about building and flashing can be found in Chapter
6 of the manual[1]. For manipulation you should operate the bus switch
in a way that SIM and SAM, and Phone and SAM are not directly connected.
This bus switch configuration is mentioned here[2] It would be nice if
you have the time to implement the MITM mode. Please feel free to continue
asking technical questions.
holger
[1] http://bb.osmocom.org/trac/raw-attachment/wiki/SIMtrace/usermanual.pdf
[2] http://bb.osmocom.org/trac/wiki/SIMtrace/Hardware#Modi
4195
days inactive
4196
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2 comments
3 participants
participants (3)
-
Holger Hans Peter Freyther -
Samuel Weinbeck -
Sylvain Munaut