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Allow changing the class byte for pdu messages

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This commit is contained in:
Jan Balke
2015-01-26 11:15:25 +01:00
committed by Holger Hans Peter Freyther
parent 2fc205ceb9
commit 73b686f7ee
1 changed files with 16 additions and 7 deletions
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23
pySim/commands.py
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@@ -28,11 +28,20 @@ from pySim.utils import rpad, b2h
class SimCardCommands(object): class SimCardCommands(object):
def __init__(self, transport): def __init__(self, transport):
self._tp = transport; self._tp = transport;
self._cla_byte = "a0"
@property
def cla_byte(self):
return self._cla_byte
@cla_byte.setter
def cla_byte(self, value):
self._cla_byte = value
def select_file(self, dir_list): def select_file(self, dir_list):
rv = [] rv = []
for i in dir_list: for i in dir_list:
data, sw = self._tp.send_apdu_checksw("a0a4000002" + i) data, sw = self._tp.send_apdu_checksw(self.cla_byte + "a4000002" + i)
rv.append(data) rv.append(data)
return rv return rv
@@ -42,14 +51,14 @@ class SimCardCommands(object):
r = self.select_file(ef) r = self.select_file(ef)
if length is None: if length is None:
length = int(r[-1][4:8], 16) - offset length = int(r[-1][4:8], 16) - offset
pdu = 'a0b0%04x%02x' % (offset, (min(256, length) & 0xff)) pdu = self.cla_byte + 'b0%04x%02x' % (offset, (min(256, length) & 0xff))
return self._tp.send_apdu(pdu) return self._tp.send_apdu(pdu)
def update_binary(self, ef, data, offset=0): def update_binary(self, ef, data, offset=0):
if not hasattr(type(ef), '__iter__'): if not hasattr(type(ef), '__iter__'):
ef = [ef] ef = [ef]
self.select_file(ef) self.select_file(ef)
pdu = 'a0d6%04x%02x' % (offset, len(data)/2) + data pdu = self.cla_byte + 'd6%04x%02x' % (offset, len(data)/2) + data
return self._tp.send_apdu_checksw(pdu) return self._tp.send_apdu_checksw(pdu)
def read_record(self, ef, rec_no): def read_record(self, ef, rec_no):
@@ -57,7 +66,7 @@ class SimCardCommands(object):
ef = [ef] ef = [ef]
r = self.select_file(ef) r = self.select_file(ef)
rec_length = int(r[-1][28:30], 16) rec_length = int(r[-1][28:30], 16)
pdu = 'a0b2%02x04%02x' % (rec_no, rec_length) pdu = self.cla_byte + 'b2%02x04%02x' % (rec_no, rec_length)
return self._tp.send_apdu(pdu) return self._tp.send_apdu(pdu)
def update_record(self, ef, rec_no, data, force_len=False): def update_record(self, ef, rec_no, data, force_len=False):
@@ -70,7 +79,7 @@ class SimCardCommands(object):
raise ValueError('Invalid data length (expected %d, got %d)' % (rec_length, len(data)/2)) raise ValueError('Invalid data length (expected %d, got %d)' % (rec_length, len(data)/2))
else: else:
rec_length = len(data)/2 rec_length = len(data)/2
pdu = ('a0dc%02x04%02x' % (rec_no, rec_length)) + data pdu = (self.cla_byte + 'dc%02x04%02x' % (rec_no, rec_length)) + data
return self._tp.send_apdu_checksw(pdu) return self._tp.send_apdu_checksw(pdu)
def record_size(self, ef): def record_size(self, ef):
@@ -85,11 +94,11 @@ class SimCardCommands(object):
if len(rand) != 32: if len(rand) != 32:
raise ValueError('Invalid rand') raise ValueError('Invalid rand')
self.select_file(['3f00', '7f20']) self.select_file(['3f00', '7f20'])
return self._tp.send_apdu('a088000010' + rand) return self._tp.send_apdu(self.cla_byte + '88000010' + rand)
def reset_card(self): def reset_card(self):
return self._tp.reset_card() return self._tp.reset_card()
def verify_chv(self, chv_no, code): def verify_chv(self, chv_no, code):
fc = rpad(b2h(code), 16) fc = rpad(b2h(code), 16)
return self._tp.send_apdu_checksw('a02000' + ('%02x' % chv_no) + '08' + fc) return self._tp.send_apdu_checksw(self.cla_byte + '2000' + ('%02X' % chv_no) + '08' + fc)