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transport: Put common methods in LinkBase class

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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut
2010-12-07 10:01:55 +01:00
parent 76504e0a6e
commit e7c15cd088
3 changed files with 75 additions and 75 deletions
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41
pySim/transport/serial.py
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@@ -27,10 +27,11 @@ import serial
import time
from pySim.exceptions import NoCardError, ProtocolError
from pySim.transport import LinkBase
from pySim.utils import h2b, b2h
class SerialSimLink(object):
class SerialSimLink(LinkBase):
def __init__(self, device='/dev/ttyUSB0', baudrate=9600, rst='-rts', debug=False):
self._sl = serial.Serial(
@@ -125,13 +126,7 @@ class SerialSimLink(object):
return self._sl.read()
def send_apdu_raw(self, pdu):
"""send_apdu_raw(pdu): Sends an APDU with minimal processing
pdu : string of hexadecimal characters (ex. "A0A40000023F00")
return : tuple(data, sw), where
data : string (in hex) of returned data (ex. "074F4EFFFF")
sw : string (in hex) of status word (ex. "9000")
"""
"""see LinkBase.send_apdu_raw"""
pdu = h2b(pdu)
data_len = ord(pdu[4]) # P3
@@ -182,33 +177,3 @@ class SerialSimLink(object):
# Return value
return b2h(data), b2h(sw)
def send_apdu(self, pdu):
"""send_apdu(pdu): Sends an APDU and auto fetch response data
pdu : string of hexadecimal characters (ex. "A0A40000023F00")
return : tuple(data, sw), where
data : string (in hex) of returned data (ex. "074F4EFFFF")
sw : string (in hex) of status word (ex. "9000")
"""
data, sw = self.send_apdu_raw(pdu)
if (sw is not None) and (sw[0:2] == '9f'):
pdu_gr = pdu[0:2] + 'c00000' + sw[2:4]
data, sw = self.send_apdu_raw(pdu_gr)
return data, sw
def send_apdu_checksw(self, pdu, sw="9000"):
"""send_apdu_checksw(pdu,sw): Sends an APDU and check returned SW
pdu : string of hexadecimal characters (ex. "A0A40000023F00")
sw : string of 4 hexadecimal characters (ex. "9000")
return : tuple(data, sw), where
data : string (in hex) of returned data (ex. "074F4EFFFF")
sw : string (in hex) of status word (ex. "9000")
"""
rv = self.send_apdu(pdu)
if sw.lower() != rv[1]:
raise RuntimeError("SW match failed ! Expected %s and got %s." % (sw.lower(), rv[1]))
return rv