Commit Graph

6 Commits

Author SHA1 Message Date
Harald Welte
f8d2e2ba08 split pySim/legacy/{cards,utils} from pySim/{cards,utils}
There are some functions / classes which are only needed by the legacy
tools pySim-{read,prog}, bypassing our modern per-file transcoder
classes.  Let's move this code to the pySim/legacy sub-directory,
rendering pySim.legacy.* module names.

The long-term goal is to get rid of those and have all code use the
modern pySim/filesystem classes for reading/decoding/encoding/writing
any kind of data on cards.

Change-Id: Ia8cf831929730c48f90679a83d69049475cc5077
2023-07-12 22:03:59 +02:00
Harald Welte
7e55569f3a docs: Add section on pySim-trace to user manual
Change-Id: I5edb222818f00e36ed5b067e0f8d5786f39ae887
2023-06-13 15:10:25 +00:00
Harald Welte
c95f6e2124 pySim-trace: Add support for reading GSMTAP from pcap files
So far we supported
* GSMTAP live traces via a UDP socket
* RSPRO traces from pcap files (or live)

We were lacking support for reading GSMTAP stored in pcap, which
is what this patch implements.

Change-Id: I46d42774b39a2735500ff5804206ddcfa545568c
2023-01-24 13:50:51 +01:00
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