1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
#! /usr/bin/env python3
# SCardBeginTransaction_ExclusiceMode.py : Unitary test for SCardDisconnect()
# Copyright (C) 2011 Ludovic Rousseau
#
# 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 3 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/>.
"""
# Alioth bug [#312960] SCardDisconnect when other context has transaction
# fixed in revisions 5572 and 5574
"""
from smartcard.pcsc.PCSCExceptions import (
BaseSCardException,
EstablishContextException,
ListReadersException,
ReleaseContextException,
)
from smartcard.scard import (
SCARD_LEAVE_CARD,
SCARD_PROTOCOL_ANY,
SCARD_S_SUCCESS,
SCARD_SCOPE_USER,
SCARD_SHARE_EXCLUSIVE,
SCARD_SHARE_SHARED,
SCardBeginTransaction,
SCardConnect,
SCardDisconnect,
SCardEndTransaction,
SCardEstablishContext,
SCardListReaders,
SCardReleaseContext,
)
hresult, hcontext1 = SCardEstablishContext(SCARD_SCOPE_USER)
if hresult != SCARD_S_SUCCESS:
raise EstablishContextException(hresult)
hresult, readers = SCardListReaders(hcontext1, [])
if hresult != SCARD_S_SUCCESS:
raise ListReadersException(hresult)
print("PC/SC Readers:", readers)
reader = readers[0]
print("Using reader:", reader)
hresult, hcontext2 = SCardEstablishContext(SCARD_SCOPE_USER)
if hresult != SCARD_S_SUCCESS:
raise EstablishContextException(hresult)
hresult, hcard1, dwActiveProtocol = SCardConnect(
hcontext1, reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_ANY
)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult, hcard2, dwActiveProtocol = SCardConnect(
hcontext1, reader, SCARD_SHARE_SHARED, SCARD_PROTOCOL_ANY
)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardBeginTransaction(hcard1)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
# Disconnect hcard2 before the end of transaction with hcard1
hresult = SCardDisconnect(hcard2, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardEndTransaction(hcard1, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardDisconnect(hcard1, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
# Connect should not return an error since hcard1 and hcard2 are now
# disconnected
hresult, hcard1, dwActiveProtocol = SCardConnect(
hcontext1, reader, SCARD_SHARE_EXCLUSIVE, SCARD_PROTOCOL_ANY
)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardDisconnect(hcard1, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise BaseSCardException(hresult)
hresult = SCardReleaseContext(hcontext1)
if hresult != SCARD_S_SUCCESS:
raise ReleaseContextException(hresult)
|
