Commit Graph

3 Commits

Author SHA1 Message Date
Harald Welte 86d698d310 pySim-trace: Don't print argparse object at start-up
Change-Id: I881471d026457d8ffcfdbd412c7aae0d0bff9344
2022-07-24 10:23:50 +02:00
Harald Welte 72c5b2d796 pySim-trace: Fix --no-suppress-{select.status} command line arguments
The Tracer implemented those options and the argparser handled it,
but we didn't ever connect the two.

Change-Id: I7d7d5fc475a8d09efdb63d3d6f1cc1de1996687b
2022-07-24 10:23:50 +02:00
Harald Welte 21caf32e3d Introduce APDU/TPDU trace decoder
This introduces a new pySim.apdu module hierarchy, which contains
classes that represent TPDU/APDUs as exchanged between
SIM/UICC/USIM/ISIM card and UE.

It contains instruction level decoders for SELECT, READ BINARY and
friends, and then uses the pySim.filesystem.Runtime{Lchan,State} classes
to keep track of the currently selected EF/DF/ADF for each logical
channel, and uses the file-specific decoder classes of pySim to decode
the actual file content that is being read or written.

This provides a much more meaningful decode of protocol traces than
wireshark will ever be able to give us.

Furthermore, there's the new pySim.apdu_source set of classes which
provides "input plugins" for obtaining APDU traces in a variety of
formats.  So far, GSMTAP UDP live capture and pyshark based RSPRO
live and pcap file reading are imlpemented.

Change-Id: I862d93163d495a294364168f7818641e47b18c0a
Closes: OS#5126
2022-07-23 12:18:57 +02:00