shell: Add 'reset' command to reset the card

At some points during an interactive session or a script one may want
to reset the card.

Change-Id: I992eb3e0ed52f7941a5fb44f28a42e22ebd49301
This commit is contained in:
Harald Welte 2021-05-03 23:17:29 +02:00
parent 917d98c1a5
commit daf2b392f0
3 changed files with 24 additions and 1 deletions

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@ -193,6 +193,12 @@ verify_adm
FIXME
reset
~~~~~
Perform card reset and display the card ATR.
Linear Fixed EF commands
------------------------

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@ -313,6 +313,12 @@ class PySimCommands(CommandSet):
elif context['DF_SKIP']:
raise RuntimeError("unable to export %i dedicated files(s)" % context['ERR'])
def do_reset(self, opts):
"""Reset the Card."""
atr = self._cmd.rs.reset(self._cmd)
self._cmd.poutput('Card ATR: %s' % atr)
self._cmd.update_prompt()
@with_default_category('ISO7816 Commands')
class Iso7816Commands(CommandSet):

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@ -34,7 +34,7 @@ import argparse
from typing import cast, Optional, Iterable, List, Any, Dict, Tuple
from pySim.utils import sw_match, h2b, b2h, is_hex, auto_int, bertlv_parse_one
from pySim.utils import sw_match, h2b, b2h, i2h, is_hex, auto_int, bertlv_parse_one, Hexstr
from pySim.construct import filter_dict
from pySim.exceptions import *
from pySim.jsonpath import js_path_find, js_path_modify
@ -1020,6 +1020,17 @@ class RuntimeState(object):
print("error: could not determine card applications")
return apps_taken
def reset(self, cmd_app=None) -> Hexstr:
"""Perform physical card reset and obtain ATR.
Args:
cmd_app : Command Application State (for unregistering old file commands)
"""
self.card._scc._tp.reset_card()
atr = i2h(self.card._scc._tp.get_atr())
# select MF to reset internal state and to verify card really works
self.select('MF', cmd_app)
return atr
def get_cwd(self) -> CardDF:
"""Obtain the current working directory.