Commit Graph

10 Commits

Author SHA1 Message Date
Philipp Maier
784b947b11 pySim-trace: remove stray debug print
Related: OS#6094
Change-Id: I5f030a8552a84f721bd12ab4751933fc6eeae256
2023-07-28 10:14:19 +02:00
Philipp Maier
407c95520f pySim-trace: add commandline option --show-raw-apdu
The trace log currently only shows the parsed APDU. However, depending
on the problem to investigate it may be required to see the raw APDU
string as well. Let's add an option for this.

Related: OS#6094
Change-Id: I1a3bc54c459e45ed3154479759ceecdc26db9d37
2023-07-28 10:07:35 +02:00
Harald Welte
531894d386 move Runtime{State,Lchan} from pySim.filesystem to new pySim.runtime
Those two are really separate concepts, so let's keep them in separate
source code files.

Change-Id: I9ec54304dd8f4a4cba9487054a8eb8d265c2d340
2023-07-12 22:05:14 +02:00
Harald Welte
323a35043f Introduce concept of CardProfileAddon
We have a strict "one CardProfile per card" rule.  For a modern UICC
without legacy SIM support, that works great, as all applications
have AID and ADF and can hence be enumerated/detected that way.

However, in reality there are mostly UICC that have legacy SIM, GSM-R
or even CDMA support, all of which are not proper UICC applications
for historical reasons.

So instead of having hard-coded hacks in various places, let's introduce
the new concept of a CardProfileAddon.  Every profile can have any
number of those.  When building up the RuntimeState, we iterate over the
CardProfile addons, and probe which of those are actually on the card.
For those discovered, we add their files to the filesystem hierarchy.

Change-Id: I5866590b6d48f85eb889c9b1b8ab27936d2378b9
2023-07-12 22:05:14 +02:00
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