Leaked source code of windows server 2003
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/*++
Copyright (C) Microsoft Corporation 1999
Module Name:
Proto_T1
Abstract:
This module provides the mapping from an APDU to a T=1 TPDU.
Author:
Doug Barlow (dbarlow) 6/28/1999
Notes:
?Notes?
--*/
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include "stdafx.h"
#include "Conversion.h"
static DWORD l_dwDefaultIOMax = 0;
/*++
ApduToTpdu_T1:
This routine takes an APDU, converts it to a T=1 TPDU, and performs the
exchange to the specified card.
Arguments:
hCard supplies a handle to the card to be used in the exchange.
pbPciRqst supplies the PCI Request structure
cbPciRqst supplies the length of pbPciRqst, in bytes
pbApdu supplies the APDU to be sent to the card.
cbApdu supplies the length of the APDU in pbApdu.
dwFlags supplies any special flags used to modify the operation.
bfPciRsp receives the response PCI.
bfReply receives the response from the card.
Return Value:
None
Throws:
Errors are thrown as HRESULT status codes.
Remarks:
?Remarks?
Author:
Doug Barlow (dbarlow) 6/28/1999
--*/
#undef __SUBROUTINE__
#define __SUBROUTINE__ TEXT("ApduToTpdu_T1")
void
ApduToTpdu_T1(
IN SCARDHANDLE hCard,
IN const SCARD_IO_REQUEST *pPciRqst,
IN LPCBYTE pbApdu,
IN DWORD cbApdu,
IN DWORD dwFlags,
OUT CBuffer bfPciRsp,
OUT CBuffer &bfReply)
{
LONG lSts;
DWORD dwLen, dwXmitFlags;
WORD wLe;
//
// Figure out how big the receive buffers should be.
//
bfPciRsp.Set((LPCBYTE)pPciRqst, pPciRqst->cbPciLength);
ParseRequest(
pbApdu,
cbApdu,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
&wLe,
&dwXmitFlags);
if ((0 == wLe) && (0 != (dwXmitFlags & APDU_MAXIMUM_LE)))
{
if (0 == l_dwDefaultIOMax)
{
try
{
CRegistry regCalais(
HKEY_LOCAL_MACHINE,
TEXT("SOFTWARE\\Microsoft\\Cryptography\\Calais"),
KEY_READ);
l_dwDefaultIOMax = regCalais.GetNumericValue(
TEXT("MaxDefaultBuffer"));
}
catch (...)
{
l_dwDefaultIOMax = 264;
}
}
wLe = (WORD)l_dwDefaultIOMax;
}
bfReply.Presize(wLe + 2);
//
// Perform the I/O
dwLen = bfReply.Space();
lSts = SCardTransmit(
hCard,
pPciRqst,
pbApdu,
cbApdu,
(LPSCARD_IO_REQUEST)bfPciRsp.Access(),
bfReply.Access(),
&dwLen);
if (SCARD_S_SUCCESS != lSts)
throw (HRESULT)HRESULT_FROM_WIN32(lSts);
bfReply.Resize(dwLen, TRUE);
}