Hi.
I'm new to Maemo and I hope this is the right place to ask this.
I need to capture the raw data from SMS and other SMPP traffic, I mean byte by byte, the same way as tcpdump does with Internet traffic.

I've just bought a Nokia N900 and I've installed tcpdump to listen to all data. There was a "phonet0" interface and I thought I could listen on that. There is some data captured, but I think it is not SMPP.

Is this the right way to do this ????? Do I have to install another OS or application???? is this possible???

Thanks in advance.
Regards.

Alvaro

Can I ask why?

Also do you know if TCPDump supports the SMPP protocol? I googled and it didn't look like it but I've never thought of working with the SMPP protocol.

Scapy is available for the N900, you can write your own modules to interface with protocols in python. You could consider writing one for scapy and then it'd be useful for a lot of people.

I need this because I want to implement and app that uses custom messages using the SMPP protocol.

TCPDump, at least the desktop version, does support parsing SMPP packets, but this is not so important for me, because I just need the plain and simple hex sequence from the data received. I've done a lot of interesting things with the bytes captured on the DATA channel and I need to do the same on the SMS channel.

Here I have and important basic conceptual doubt: how are the SMS's received? on the voice channel??? I have only experience on the wifi and 3G channel on smartphones and I think maybe I'm following the wrong path for SMS's.

Scapy seems like a tcpdump alternative... but I'm more concerned on the interface thing, where and how to listen. Once I have the bytes, I'm done and what I'll do with them is another problem.

Someone told me to use AT commands...

I'll continue my research and keep you updated.

Regards.

Alvaro

I'm very interested in this too. You've made me curious

scapy is a lot lot more than a tcpdump alternative. You craft and manipulate packets EXACTLY how you want them, unlike other tools.

I'm not sure where to start. We can't analyse until someone who knows these things helps out D:

This should work on phonet0

http://talk.maemo.org/showpost.php?p...6&postcount=14