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author | Sylvain Munaut <tnt@246tNt.com> | 2010-12-07 10:01:55 +0100 |
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committer | Sylvain Munaut <tnt@246tNt.com> | 2010-12-07 10:01:55 +0100 |
commit | e7c15cd08875f4f6eba3901d415d35b92e85ac27 (patch) | |
tree | 84e11b19e66b22bcc36c457cb95c6e238dc1a06d /pySim/transport/__init__.py | |
parent | 76504e0a6e7689d374b557e054299281bdb9c951 (diff) |
transport: Put common methods in LinkBase class
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Diffstat (limited to 'pySim/transport/__init__.py')
-rw-r--r-- | pySim/transport/__init__.py | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/pySim/transport/__init__.py b/pySim/transport/__init__.py index e69de29..c9715fc 100644 --- a/pySim/transport/__init__.py +++ b/pySim/transport/__init__.py @@ -0,0 +1,69 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" pySim: PCSC reader transport link base +""" + +# +# Copyright (C) 2009-2010 Sylvain Munaut <tnt@246tNt.com> +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +class LinkBase(object): + + def reset_card(self): + """reset_card(): Resets the card (power down/up) + """ + pass + + 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") + """ + pass + + 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 |