| Home | Trees | Indices | Help |
|
|---|
|
|
The smartcard.scard module is a simple wrapper on top of the C language
PCSC SCardXXX API.
The smartcard.scard module is the lower layer of the pyscard
framework that provides a higher level interface.
You should avoid using the smartcard.scard package directly, and use the
pyscard directly because:
- smartcard.scard being a C wrapper, the code tends to look like C code
written in python syntax
- the smartcard package provides higher level abstractions (e.g.
CardType, CardConnection), and makes programming easier since it is
totally written in Python
You can still use the smartcard.scard package if you want to write your
own framework, or if you want to perform quick-and-dirty port of C
language programs using SCardXXX calls, or if there are features of
SCardXXX API that you want to use and that are not available in the
pyscard library.
Introduction
The smartcard.scard module is a Python wrapper around PCSC smart card base
services. On Windows, the wrapper is performed around the smart card base
components winscard library. On linux and OS X, the wrapper is performed
around the PCSC-lite library.
The smartcard.scard module provides mapping for the following API functions,
depending on the Operating System:
=============================== ======= =======
Function Windows Linux
OS X
=============================== ======= =======
GetOpenCardName
SCardAddReaderToGroup Y
SCardBeginTransaction Y Y
SCardCancel Y Y
SCardConnect Y Y
SCardControl Y Y
SCardDisconnect Y Y
SCardEndTransaction Y Y
SCardEstablishConteYt Y Y
SCardForgetCardType Y
SCardForgetReader Y
SCardForgetReaderGroup Y
SCardFreeMemory
SCardGetAttrib Y Y
SCardGetCardTypeProviderName Y
SCardGetErrorMessage Y
SCardGetProviderId
SCardGetStatusChange Y Y
SCardIntroduceCardType Y
SCardIntroduceReader Y
SCardIntroduceReaderGroup Y
SCardIsValidConteYt Y Y
SCardListCards Y
SCardListInterfaces Y
SCardListReaderGroups Y Y
SCardListReaders Y Y
SCardLocateCards Y
SCardReconnect Y Y
SCardReleaseConteYt Y Y
SCardRemoveReaderFromGroup Y
SCardSetAttrib Y Y
SCardSetCartTypeProviderName
SCardStatus Y Y
SCardTransmit Y Y
SCardUIDlgSelectCard
=============================== ======= =======
Comments, bug reports, improvements welcome.
-------------------------------------------------------------------------------
Copyright 2001-2012 gemalto
@Author: Jean-Daniel Aussel, mailto:jean-daniel.aussel@gemalto.com
@Author: Ludovic Rousseau, mailto:ludovic.rousseau@free.fr
This file is part of pyscard.
pyscard is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at
your option) any later version.
pyscard 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with pyscard; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|||
|
|||
|
|||
|
|||
|
|||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
|
|||
|
|||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
|
|||
|
|||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
| SCARDRETCODE |
|
||
|
|||
|
|||
|
|||
|
|||
Parameters
----------
hcontext: context handle return from SCardEstablishContext()
This function determines whether a smart card context handle is still
valid. After a smart card context handle has been set by
SCardEstablishContext(), it may become not valid if the resource manager
service has been shut down.
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
hresult = SCardIsValidContext(hcontext)
if hresult != SCARD_S_SUCCESS:
raise error, 'Invalid context: ' + SCardGetErrorMessage(hresult)
...
|
Parameters
----------
hcard: card handle return from SCardConnect()
dwAttrId: value of attribute to get
This function get an attribute from the IFD Handler.
The possible attributes are:
======================================== ======= =======
Attribute Windows PSCS
lite
======================================== ======= =======
SCARD_ATTR_ASYNC_PROTOCOL_TYPES Y
SCARD_ATTR_ATR_STRING Y Y
SCARD_ATTR_CHANNEL_ID Y Y
SCARD_ATTR_CHARACTERISTICS Y Y
SCARD_ATTR_CURRENT_BWT Y Y
SCARD_ATTR_CURRENT_CLK Y Y
SCARD_ATTR_CURRENT_CWT Y Y
SCARD_ATTR_CURRENT_D Y Y
SCARD_ATTR_CURRENT_EBC_ENCODING Y Y
SCARD_ATTR_CURRENT_F Y Y
SCARD_ATTR_CURRENT_IFSC Y Y
SCARD_ATTR_CURRENT_IFSD Y Y
SCARD_ATTR_CURRENT_IO_STATE Y Y
SCARD_ATTR_CURRENT_N Y Y
SCARD_ATTR_CURRENT_PROTOCOL_TYPE Y Y
SCARD_ATTR_CURRENT_W Y Y
SCARD_ATTR_DEFAULT_CLK Y Y
SCARD_ATTR_DEFAULT_DATA_RATE Y Y
SCARD_ATTR_DEVICE_FRIENDLY_NAME_A Y Y
SCARD_ATTR_DEVICE_FRIENDLY_NAME_W Y Y
SCARD_ATTR_DEVICE_IN_USE Y Y
SCARD_ATTR_DEVICE_SYSTEM_NAME_A Y Y
SCARD_ATTR_DEVICE_SYSTEM_NAME_W Y Y
SCARD_ATTR_DEVICE_UNIT Y Y
SCARD_ATTR_ESC_AUTHREQUEST Y Y
SCARD_ATTR_ESC_CANCEL Y Y
SCARD_ATTR_ESC_RESET Y Y
SCARD_ATTR_EXTENDED_BWT Y Y
SCARD_ATTR_ICC_INTERFACE_STATUS Y Y
SCARD_ATTR_ICC_PRESENCE Y Y
SCARD_ATTR_ICC_TYPE_PER_ATR Y Y
SCARD_ATTR_MAXINPUT Y Y
SCARD_ATTR_MAX_CLK Y Y
SCARD_ATTR_MAX_DATA_RATE Y Y
SCARD_ATTR_MAX_IFSD Y Y
SCARD_ATTR_POWER_MGMT_SUPPORT Y Y
SCARD_ATTR_SUPRESS_T1_IFS_REQUEST Y Y
SCARD_ATTR_SYNC_PROTOCOL_TYPES Y
SCARD_ATTR_USER_AUTH_INPUT_DEVICE Y Y
SCARD_ATTR_USER_TO_CARD_AUTH_DEVICE Y Y
SCARD_ATTR_VENDOR_IFD_SERIAL_NO Y Y
SCARD_ATTR_VENDOR_IFD_TYPE Y Y
SCARD_ATTR_VENDOR_IFD_VERSION Y Y
SCARD_ATTR_VENDOR_NAME Y Y
======================================== ======= =======
Not all the dwAttrId values listed above may be implemented in the IFD
Handler you are using. And some dwAttrId values not listed here may be
implemented.
from smartcard.scard import *
... establish context and connect to card ...
hresult, attrib = SCardGetAttrib(hcard, SCARD_ATTR_ATR_STRING)
if hresult == SCARD_S_SUCCESS:
for j in attrib:
print '0x%.2X' % attrib,
...
|
SCardSetAttrib( hcard, dwAttrId, BYTELIST * ATTRIBUTESIN) -> SCARDRETCODE
Parameters
----------
hcard: card handle return from SCardConnect()
dwAttrId: value of attribute to get
ATTRIBUTESIN: BYTELIST *
This function sets an attribute from the IFD Handler. Not all
attributes are supported by all readers nor can they be set at all
times.
The possible attributes are:
======================================== ======= =======
Attribute Windows PSCS
lite
======================================== ======= =======
SCARD_ATTR_ASYNC_PROTOCOL_TYPES Y
SCARD_ATTR_ATR_STRING Y Y
SCARD_ATTR_CHANNEL_ID Y Y
SCARD_ATTR_CHARACTERISTICS Y Y
SCARD_ATTR_CURRENT_BWT Y Y
SCARD_ATTR_CURRENT_CLK Y Y
SCARD_ATTR_CURRENT_CWT Y Y
SCARD_ATTR_CURRENT_D Y Y
SCARD_ATTR_CURRENT_EBC_ENCODING Y Y
SCARD_ATTR_CURRENT_F Y Y
SCARD_ATTR_CURRENT_IFSC Y Y
SCARD_ATTR_CURRENT_IFSD Y Y
SCARD_ATTR_CURRENT_IO_STATE Y Y
SCARD_ATTR_CURRENT_N Y Y
SCARD_ATTR_CURRENT_PROTOCOL_TYPE Y Y
SCARD_ATTR_CURRENT_W Y Y
SCARD_ATTR_DEFAULT_CLK Y Y
SCARD_ATTR_DEFAULT_DATA_RATE Y Y
SCARD_ATTR_DEVICE_FRIENDLY_NAME_A Y Y
SCARD_ATTR_DEVICE_FRIENDLY_NAME_W Y Y
SCARD_ATTR_DEVICE_IN_USE Y Y
SCARD_ATTR_DEVICE_SYSTEM_NAME_A Y Y
SCARD_ATTR_DEVICE_SYSTEM_NAME_W Y Y
SCARD_ATTR_DEVICE_UNIT Y Y
SCARD_ATTR_ESC_AUTHREQUEST Y Y
SCARD_ATTR_ESC_CANCEL Y Y
SCARD_ATTR_ESC_RESET Y Y
SCARD_ATTR_EXTENDED_BWT Y Y
SCARD_ATTR_ICC_INTERFACE_STATUS Y Y
SCARD_ATTR_ICC_PRESENCE Y Y
SCARD_ATTR_ICC_TYPE_PER_ATR Y Y
SCARD_ATTR_MAXINPUT Y Y
SCARD_ATTR_MAX_CLK Y Y
SCARD_ATTR_MAX_DATA_RATE Y Y
SCARD_ATTR_MAX_IFSD Y Y
SCARD_ATTR_POWER_MGMT_SUPPORT Y Y
SCARD_ATTR_SUPRESS_T1_IFS_REQUEST Y Y
SCARD_ATTR_SYNC_PROTOCOL_TYPES Y
SCARD_ATTR_USER_AUTH_INPUT_DEVICE Y Y
SCARD_ATTR_USER_TO_CARD_AUTH_DEVICE Y Y
SCARD_ATTR_VENDOR_IFD_SERIAL_NO Y Y
SCARD_ATTR_VENDOR_IFD_TYPE Y Y
SCARD_ATTR_VENDOR_IFD_VERSION Y Y
SCARD_ATTR_VENDOR_NAME Y Y
======================================== ======= =======
Not all the dwAttrId values listed above may be implemented in the IFD
Handler you are using. And some dwAttrId values not listed here may be
implemented.
from smartcard.scard import *
... establish context and connect to card ...
hresult, attrib = SCardSetAttrib(hcard, SCARD_ATTR_VENDOR_NAME, ['G', 'e', 'm', 'a', 'l', 't', 'o'])
if hresult != SCARD_S_SUCCESS:
print 'Failed to set attribute'
...
|
SCardControl( hcard, dwControlCode, byte[] inbuffer) -> SCARDRETCODE
Parameters
----------
hcard: card handle return from SCardConnect()
dwControlCode: the control code to send
inbuffer: list of bytes to send with the control code
This function sends a control command to the reader connected to by
SCardConnect(). It returns a result and the control response.
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
hresult, hcard, dwActiveProtocol = SCardConnect(
hcontext, 'SchlumbergerSema Reflex USB v.2 0', SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0)
CMD = [0x12, 0x34]
hresult, response = SCardControl(hcard, 42, CMD)
if hresult != SCARD_S_SUCCESS:
raise error, 'Failed to control: ' + SCardGetErrorMessage(hresult)
|
Parameters
----------
hcard: card handle return from SCardConnect()
This function establishes a temporary exclusive access mode for doing a
series of commands or transaction. You might want to use this when you
are selecting a few files and then writing a large file so you can make
sure that another application will not change the current file. If
another application has a lock on this reader or this application is in
SCARD_SHARE_EXCLUSIVE there will be no action taken.
from smartcard.scard import *
... establish context ...
hresult, hcard, dwActiveProtocol = SCardConnect(
hcontext, 'SchlumbergerSema Reflex USB v.2 0', SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0)
if hresult!=SCARD_S_SUCCESS:
raise error, 'unable to connect: ' + SCardGetErrorMessage(hresult)
hresult = SCardBeginTransaction(hcard)
if hresult != SCARD_S_SUCCESS:
raise error, 'failed to begin transaction: ' + SCardGetErrorMessage(hresult)
...
|
Parameters
----------
hcontext: context handle return from SCardEstablishContext()
This function cancels all pending blocking requests on the
ScardGetStatusChange() function.
from smartcard.scard import *
... establish context ...
hresult = SCardCancel(hcard)
if hresult != SCARD_S_SUCCESS:
raise error, 'failed to cancel pending actions: ' + SCardGetErrorMessage(hresult)
...
|
Parameters
----------
hcontext: context handle return from SCardEstablishContext()
readername: card reader name
dwShareMode: share mode
dwPreferredProtocols: preferred protocols
This function establishes a connection to the friendly name of the reader
specified in szReader. The first connection will power up and perform a
reset on the card.
Value of dwShareMode Meaning
SCARD_SHARE_SHARED This application will allow others to share the reader
SCARD_SHARE_EXCLUSIVE This application will NOT allow others to share the reader
SCARD_SHARE_DIRECT Direct control of the reader, even without a card
SCARD_SHARE_DIRECT can be used before using SCardControl() to send control
commands to the reader even if a card is not present in the reader.
Value of dwPreferredProtocols Meaning
SCARD_PROTOCOL_T0 Use the T=0 protocol
SCARD_PROTOCOL_T1 Use the T=1 protocol
SCARD_PROTOCOL_RAW Use with memory type cards
from smartcard.scard import *
... establish context ...
hresult, readers = SCardListReaders(hcontext, 'NULL')
if hresult != SCARD_S_SUCCESS:
raise error, 'Failed to list readers:: ' + SCardGetErrorMessage(hresult)
hresult, hcard, dwActiveProtocol = SCardConnect(
hcontext, readers[0], SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0)
if hresult != SCARD_S_SUCCESS:
raise error, 'unable to connect: ' + SCardGetErrorMessage(hresult)
...
|
Parameters
----------
hcard: card handle return from SCardConnect()
dwDisposition: card disposition on return
This function terminates a connection to the connection made through
SCardConnect. disposition can have the following values:
Value of disposition Meaning
SCARD_LEAVE_CARD Do nothing
SCARD_RESET_CARD Reset the card (warm reset)
SCARD_UNPOWER_CARD Unpower the card (cold reset)
SCARD_EJECT_CARD Eject the card
from smartcard.scard import *
... establish context and connect to card ...
hresult = SCardDisconnect(hcard, SCARD_UNPOWER_CARD)
if hresult != SCARD_S_SUCCESS:
raise error, 'failed to disconnect: ' + SCardGetErrorMessage(hresult)
...
|
Parameters
----------
hcard: card handle return from SCardConnect()
dwDisposition: card disposition on return
This function ends a previously begun transaction. The calling
application must be the owner of the previously begun transaction or an
error will occur. disposition can have the following values: The
disposition action is not currently used in this release.
Value of disposition Meaning
SCARD_LEAVE_CARD Do nothing
SCARD_RESET_CARD Reset the card
SCARD_UNPOWER_CARD Unpower the card
SCARD_EJECT_CARD Eject the card
from smartcard.scard import *
... establish context, connect to card, begin transaction ...
hresult = SCardEndTransaction(hcard, SCARD_LEAVE_CARD)
if hresult != SCARD_S_SUCCESS:
raise error, 'failed to end transaction: ' + SCardGetErrorMessage(hresult)
|
Parameters
----------
dwScope: context scope
This function creates a communication context to the PC/SC Resource
Manager. This must be the first function called in a PC/SC application.
Value of dwScope Meaning
SCARD_SCOPE_USER Operations performed within the scope of the User
SCARD_SCOPE_TERMINAL Not used
SCARD_SCOPE_GLOBAL Not used
SCARD_SCOPE_SYSTEM Operations performed within the scope of the system
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
if hresult != SCARD_S_SUCCESS:
raise error, 'Failed to establish context: ' + SCardGetErrorMessage(hresult)
|
SCardGetStatusChange( hcontext, dwTimeout, tuple[] readerstatelist) -> SCARDRETCODE
Parameters
----------
hcontext: context handle return from SCardEstablishContext()
dwTimeout: timeout value, INFINITE for infinite time-out
readerstatelist: in input/output, a list of reader state tuple (readername, state, atr)
This function receives a structure or list of tuples containing reader
states. A READERSTATE hast three fields (readername, state, atr).
It then blocks for a change in state to occur on any of the OR'd
values contained in the current state for a maximum blocking time of
dwTimeout or forever if INFINITE is used. The new event state will be
contained in state. A status change might be a card insertion or
removal event, a change in ATR, etc.
Value of state Meaning
SCARD_STATE_UNAWARE The application is unaware of the current state, and would like to know. The use of this value results in an immediate return from state transition monitoring services. This is represented by all bits set to zero
SCARD_STATE_IGNORE This reader should be ignored
SCARD_STATE_CHANGED There is a difference between the state believed by the application, and the state known by the resource manager. When this bit is set, the application may assume a significant state change has occurred on this reader
SCARD_STATE_UNKNOWN The given reader name is not recognized by the resource manager. If this bit is set, then SCARD_STATE_CHANGED and SCARD_STATE_IGNORE will also be set
SCARD_STATE_UNAVAILABLE The actual state of this reader is not available. If this bit is set, then all the following bits are clear
SCARD_STATE_EMPTY There is no card in the reader. If this bit is set, all the following bits will be clear
SCARD_STATE_PRESENT There is a card in the reader
SCARD_STATE_ATRMATCH There is a card in the reader with an ATR matching one of the target cards. If this bit is set, SCARD_STATE_PRESENT will also be set. This bit is only returned on the SCardLocateCards function
SCARD_STATE_EXCLUSIVE The card in the reader is allocated for exclusive use by another application. If this bit is set, SCARD_STATE_PRESENT will also be set
SCARD_STATE_INUSE The card in the reader is in use by one or more other applications, but may be connected to in shared mode. If this bit is set, SCARD_STATE_PRESENT will also be set
SCARD_STATE_MUTE There is an unresponsive card in the reader
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
hresult, readers = SCardListReaders(hcontext, [])
readerstates = []
cards = [ 'Schlumberger Cryptoflex 4k', 'Schlumberger Cryptoflex 8k', 'Schlumberger Cryptoflex 8k v2' ]
for i in xrange(len(readers)):
readerstates += [ (readers[i], SCARD_STATE_UNAWARE) ]
hresult, newstates = SCardLocateCards(hcontext, cards, readerstates)
print '----- Please insert or remove a card ------------'
hresult, newstates = SCardGetStatusChange(hcontext, INFINITE, newstates)
for i in newstates
reader, eventstate, atr = i
if eventstate & SCARD_STATE_ATRMATCH:
print ' Card found'
if eventstate & SCARD_STATE_EMPTY:
print ' Reader empty'
|
SCardListReaders( hcontext, [] readergroups) -> SCARDRETCODE
Parameters
----------
hcontext: context handle return from SCardEstablishContext()
readergroups: a list of reader groups to search for readers
This function returns a list of currently available readers on the system.
A list of group can be provided in input to list readers in a given
group only.
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
hresult, readers = SCardListReaders(hcontext, [])
if hresult != SCARD_S_SUCCESS:
raise error, 'Failed to list readers: ' + SCardGetErrorMessage(hresult)
print 'PCSC Readers: ', readers
hresult, readers = SCardListReaders(hcontext, ['SCard$T1ProtocolReaders', 'SCard$MyOwnGroup']
...
|
Parameters
----------
hcontext: context handle return from SCardEstablishContext()
This function returns a list of currently available reader groups on the
system.
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
hresult, readerGroups = SCardListReaderGroups(hcontext)
if hresult != SCARD_S_SUCCESS:
raise error, 'Unable to list reader groups: ' + SCardGetErrorMessage(hresult)
print 'PCSC Reader groups: ', readerGroups
|
Parameters
----------
hcard: card handle return from SCardConnect()
dwShareMode: share mode
dwPreferredProtocols: preferred protocols
dwInitialization: the type of initialization that should be performed on the card
This function reestablishes a connection to a reader that was previously
connected to using SCardConnect(). In a multi application environment it
is possible for an application to reset the card in shared mode. When
this occurs any other application trying to access certain commands will
be returned the value SCARD_W_RESET_CARD. When this occurs
SCardReconnect() must be called in order to acknowledge that the card was
reset and allow it to change it's state accordingly.
Value of dwShareMode Meaning
SCARD_SHARE_SHARED This application will allow others to share the reader
SCARD_SHARE_EXCLUSIVE This application will NOT allow others to share the reader
Value of dwPreferredProtocols Meaning
SCARD_PROTOCOL_T0 Use the T=0 protocol
SCARD_PROTOCOL_T1 Use the T=1 protocol
SCARD_PROTOCOL_RAW Use with memory type cards
dwPreferredProtocols is a bit mask of acceptable protocols for the connection. You can use (SCARD_PROTOCOL_T0 | SCARD_PROTOCOL_T1) if you do not have a preferred protocol.
Value of dwInitialization Meaning
SCARD_LEAVE_CARD Do nothing
SCARD_RESET_CARD Reset the card (warm reset)
SCARD_UNPOWER_CARD Unpower the card (cold reset)
SCARD_EJECT_CARD Eject the card
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
hresult, hcard, dwActiveProtocol = SCardConnect(
hcontext, 'SchlumbergerSema Reflex USB v.2 0', SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0)
hresult, activeProtocol = SCardReconnect(hcard, SCARD_SHARE_EXCLUSIVE,
SCARD_PROTOCOL_T0, SCARD_RESET_CARD)
...
|
Parameters ---------- hcontext: context handle return from SCardEstablishContext()
|
Parameters
----------
hcard: card handle return from SCardConnect()
This function returns the current status of the reader connected to by
hcard. The reader friendly name is returned, as well as the state,
protocol and ATR. The state is a DWORD possibly OR'd with the following
values:
Value of pdwState Meaning
SCARD_ABSENT There is no card in the reader
SCARD_PRESENT There is a card in the reader, but it has not been moved into position for use
SCARD_SWALLOWED There is a card in the reader in position for use. The card is not powered
SCARD_POWERED Power is being provided to the card, but the reader driver is unaware of the mode of the card
SCARD_NEGOTIABLE The card has been reset and is awaiting PTS negotiation
SCARD_SPECIFIC The card has been reset and specific communication protocols have been established
Value of pdwProtocol Meaning
SCARD_PROTOCOL_T0 Use the T=0 protocol
SCARD_PROTOCOL_T1 Use the T=1 protocol
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
hresult, hcard, dwActiveProtocol = SCardConnect(
hcontext, 'SchlumbergerSema Reflex USB v.2 0', SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0)
hresult, reader, state, protocol, atr = SCardStatus(hcard)
if hresult != SCARD_S_SUCCESS:
raise error, 'failed to get status: ' + SCardGetErrorMessage(hresult)
print 'Reader: ', reader
print 'State: ', state
print 'Protocol: ', protocol
print 'ATR: ',
for i in xrange(len(atr)):
print '0x%.2X' % i,
print
...
|
SCardTransmit( hcard, unsigned long pioSendPci, byte[] apducommand) -> SCARDRETCODE
Parameters
----------
hcard: card handle return from SCardConnect()
pioSendPci: unsigned long
apducommand: list of APDU bytes to transmit
This function sends an APDU to the smart card contained in the reader
connected to by SCardConnect().
It returns a result and the card APDU response.
Value of pioSendPci Meaning
SCARD_PCI_T0 Pre-defined T=0 PCI structure
SCARD_PCI_T1 Pre-defined T=1 PCI structure
from smartcard.scard import *
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
hresult, hcard, dwActiveProtocol = SCardConnect(
hcontext, 'SchlumbergerSema Reflex USB v.2 0', SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0)
SELECT = [0xA0, 0xA4, 0x00, 0x00, 0x02]
DF_TELECOM = [0x7F, 0x10]
hresult, response = SCardTransmit(hcard, SCARD_PCI_T0, SELECT + DF_TELECOM)
if hresult != SCARD_S_SUCCESS:
raise error, 'Failed to transmit: ' + SCardGetErrorMessage(hresult)
|
SCARD_CTL_CODE(long code) -> long Parameters ---------- code: long This function returns the value of a control code from smartcard.scard import * ... CM_IOCTL_GET_FEATURE_REQUEST = SCARD_CTL_CODE(3400) ... |
SCardGetErrorMessage(long lErrCode) -> ERRORSTRING *
Parameters
----------
lErrCode: long
This function return a human readable text for the given PC/SC error code.
from smartcard.scard import *
...
hresult, response = SCardTransmit(hcard, SCARD_PCI_T0, SELECT + DF_TELECOM)
if hresult != SCARD_S_SUCCESS:
raise error, 'Failed to transmit: ' + SCardGetErrorMessage(hresult)
...
|
| Home | Trees | Indices | Help |
|
|---|
| Generated by Epydoc 3.0.1 on Fri Feb 17 16:23:26 2017 | http://epydoc.sourceforge.net |