runtime: Introduce an 'identity' dict for things like ATR, ICCID, EID

This patch introduces the dict, as well as its first use for ATR storage

Change-Id: Ief5ceaf5afe82800e33da233573293527befd2f4

pySim-shell.py

@@ -761,7 +761,7 @@ Currently only ADM1 is supported."""
         """Display information about the currently inserted card"""
         self._cmd.poutput("Card info:")
         self._cmd.poutput(" Name: %s" % self._cmd.card.name)
-        self._cmd.poutput(" ATR: %s" % b2h(self._cmd.lchan.scc.get_atr()))
+        self._cmd.poutput(" ATR: %s" % self._cmd.rs.identity['ATR'])
         self._cmd.poutput(" ICCID: %s" % self._cmd.iccid)
         self._cmd.poutput(" Class-Byte: %s" % self._cmd.lchan.scc.cla_byte)
         self._cmd.poutput(" Select-Ctrl: %s" % self._cmd.lchan.scc.sel_ctrl)

pySim/runtime.py

@@ -49,6 +49,9 @@ class RuntimeState:
         self.lchan = {}
         # the basic logical channel always exists
         self.lchan[0] = RuntimeLchan(0, self)
+        # this is a dict of card identities which different parts of the code might populate,
+        # typically with something like ICCID, EID, ATR, ...
+        self.identity = {}
 
         # make sure the class and selection control bytes, which are specified
         # by the card profile are used
@@ -138,6 +141,8 @@ class RuntimeState:
         # select MF to reset internal state and to verify card really works
         self.lchan[0].select('MF', cmd_app)
         self.lchan[0].selected_adf = None
+        # store ATR as part of our card identies dict
+        self.identity['ATR'] = atr
         return atr
 
     def add_lchan(self, lchan_nr: int) -> 'RuntimeLchan':