Re: winscard: add pcsc-lite helpers for upcoming implementation (try 2)

[Alexandre Julliard]

Mounir IDRASSI <mounir.idrassi(a)idrix.fr> writes:
> +/*
> +  * pcsc-lite functions pointers
> +  */
> +typedef LONG (*SCardEstablishContextPtr)(DWORD dwScope,LPCVOID pvReserved1,
> +    LPCVOID pvReserved2, LPSCARDCONTEXT phContext);
> +typedef LONG (*SCardReleaseContextPtr)(SCARDCONTEXT hContext);
> +typedef LONG (*SCardIsValidContextPtr)(SCARDCONTEXT hContext);
> +typedef LONG (*SCardSetTimeoutPtr)(SCARDCONTEXT hContext, DWORD dwTimeout);
> +typedef LONG (*SCardConnectPtr)(SCARDCONTEXT hContext,LPCSTR szReader,DWORD dwShareMode,
> +    DWORD dwPreferredProtocols,LPSCARDHANDLE phCard, LPDWORD pdwActiveProtocol);
> +typedef LONG (*SCardReconnectPtr)(SCARDHANDLE hCard,DWORD dwShareMode,
> +    DWORD dwPreferredProtocols,DWORD dwInitialization, LPDWORD pdwActiveProtocol);
> +typedef LONG (*SCardDisconnectPtr)(SCARDHANDLE hCard, DWORD dwDisposition);
> +typedef LONG (*SCardBeginTransactionPtr)(SCARDHANDLE hCard);
> +typedef LONG (*SCardEndTransactionPtr)(SCARDHANDLE hCard, DWORD dwDisposition);
> +typedef LONG (*SCardCancelTransactionPtr)(SCARDHANDLE hCard);
> +typedef LONG (*SCardStatusPtr)(SCARDHANDLE hCard,LPSTR mszReaderNames, LPDWORD pcchReaderLen,
> +    LPDWORD pdwState,LPDWORD pdwProtocol,BYTE* pbAtr,LPDWORD pcbAtrLen);
> +typedef LONG (*SCardGetStatusChangePtr)(SCARDCONTEXT hContext,DWORD dwTimeout,
> +    LPSCARD_READERSTATEA rgReaderStates, DWORD cReaders);
> +typedef LONG (*SCardControlPtr)(SCARDHANDLE hCard, DWORD dwControlCode,	LPCVOID pbSendBuffer, 
> +    DWORD cbSendLength,LPVOID pbRecvBuffer, DWORD cbRecvLength, LPDWORD lpBytesReturned);
> +typedef LONG (*SCardTransmitPtr)(SCARDHANDLE hCard,LPCSCARD_IO_REQUEST pioSendPci,
> +    const BYTE* pbSendBuffer, DWORD cbSendLength,
> +    LPSCARD_IO_REQUEST pioRecvPci, BYTE* pbRecvBuffer, LPDWORD pcbRecvLength);
> +typedef LONG (*SCardListReaderGroupsPtr)(SCARDCONTEXT hContext,LPSTR mszGroups, LPDWORD pcchGroups);
> +typedef LONG (*SCardListReadersPtr)(SCARDCONTEXT hContext,LPCSTR mszGroups,
> +    LPSTR mszReaders, LPDWORD pcchReaders);
> +typedef LONG (*SCardCancelPtr)(SCARDCONTEXT hContext);
> +typedef LONG (*SCardGetAttribPtr)(SCARDHANDLE hCard, DWORD dwAttrId,BYTE* pbAttr, LPDWORD pcbAttrLen);
> +typedef LONG (*SCardSetAttribPtr)(SCARDHANDLE hCard, DWORD dwAttrId,const BYTE* pbAttr, DWORD cbAttrLen);

I don't think the pcsc-lite library is guaranteed to be binary
compatible with the Windows definitions. You'll need to include the
correct headers and convert data types between Windows and Unix
definitions.

-- 
Alexandre Julliard
julliard(a)winehq.org

winscard: add pcsc-lite helpers for upcoming implementation (try 2)

[Mounir IDRASSI]

Actually, pcsc-lite defines the same headers from PSDK with the same
types for 32bit architecture. Including pcsclite headers will clash with
wine's headers. The only possible modification is to redefine pcsclite
types with different names but this is useless as they are the same as
the ones in winscard. The only exception is for winscard handles: in
pcsclite they are always defined as "long", whereas in PSDK they are
defined as ULONG_PTR. So, for me, the only thing to do is convert those
handles back and forth from long to ULONG_PTR.
Another possible issue is when wine is running under a 64bit host and
pcsclite is compiled on 64bit mode...but I think this is a more global
issue.
Am I missing something? Please advise.
Thanks.

Mounir IDRASSI
IDRIX - Cryptography and IT Security Experts
http://www.idrix.fr


Alexandre Julliard wrote:
> I don't think the pcsc-lite library is guaranteed to be binary
> compatible with the Windows definitions. You'll need to include the
> correct headers and convert data types between Windows and Unix
> definitions.

winscard: add pcsc-lite helpers for upcoming implementation (try 2)

[Alexandre Julliard]

Mounir IDRASSI <mounir.idrassi(a)idrix.fr> writes:
> Actually, pcsc-lite defines the same headers from PSDK with the same
> types for 32bit architecture. Including pcsclite headers will clash with
> wine's headers. The only possible modification is to redefine pcsclite
> types with different names but this is useless as they are the same as
> the ones in winscard.

Unfortunately they aren't, the pcsclite headers use unsigned long
instead of DWORD for instance. This won't have the same size on
64-bit.

-- 
Alexandre Julliard
julliard(a)winehq.org