SIM card related Projects » pySim

On Wed, Jun 07, 2023 at 05:36:59PM +0000, ls11j wrote:

With the latest pySim code in use, the ust_service_activate command failed for the MF/ADF.USIM/EF.UST parameter.

what kind of card are you using? This is clearly not a sysmoUSIM/sysmoISIM card, as it
is using the SimCard and not the UsimCard class (can be seen from your error messages).

It's an eSIM from https://esim.me/ with an activated eSIM profile on it.
The other functions of reading and editing sim card parameters seem to be working fine.

Can you please apply the following patch

diff --git a/pySim-shell.py b/pySim-shell.py
index e07d899..91f8dd3 100755
--- a/pySim-shell.py
+++ b/pySim-shell.py
@@ -168,7 +168,7 @@ class PysimApp(cmd2.Cmd):
         self.numeric_path = False
         self.conserve_write = True
         self.json_pretty_print = True
-        self.apdu_trace = False
+        self.apdu_trace = True

         if version.parse(cmd2.__version__) < version.parse("2.0.0"):
             # pylint: disable=no-value-for-parameter

• provide the console output of starting pySim-shell with this card inserted
• the binary content of EF.DIR (select EF.DIR; read_records)

Using this data it should be easier to understand what's going on.

In any case, even after fixing pySim-shell, any normal eSIM profile will of course not permit you to writ to EF.UST so you will get rejected by the card with a related SW at that point. I suppose the latter is what you wanted to test?

Here are the outputs:

# ./pySim-shell.py -p0
Using PC/SC reader interface
Waiting for card...
Autodetection failed
Warning: Could not detect card type - assuming a generic card type...
Info: Card is of type: UICC-SIM
AIDs on card:
 USIM: a0000000871002ffffffff8907090000 (EF.DIR)
 ARA-M: a00000015141434c00
Card initialization failed with an exception:
---------------------8<---------------------
Traceback (most recent call last):
  File "./pySim-shell.py", line 973, in <module>
    app = PysimApp(card, rs, sl, ch, opts.script)
  File "./pySim-shell.py", line 160, in __init__
    self.equip(card, rs)
  File "./pySim-shell.py", line 188, in equip
    self._onchange_apdu_trace('apdu_trace', False, self.apdu_trace)
  File "./pySim-shell.py", line 219, in _onchange_apdu_trace
    self.card._scc._tp.apdu_tracer = self.Cmd2ApduTracer(self)
  File "./pySim-shell.py", line 225, in __init__
    self.cmd2 = app
NameError: name 'app' is not defined
---------------------8<---------------------
(you may still try to recover from this manually by using the 'equip' command.)
 it should also be noted that some readers may behave strangely when no card
 is inserted.)

pySim-shell not equipped!
Welcome to pySim-shell!
pySIM-shell (no card profile)>

pySIM-shell (MF/EF.DIR)> read_record_decoded 1
{
    "application_template": [
        {
            "application_id": "a0000000871002ffffffff8907090000" 
        },
        {
            "application_label": "USim1" 
        }
    ]
}

Once the ust_service_activate function works I will explore further into the possibilities.