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/* OpenPGP Smart Card Mini Driver |
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Copyright (C) 2009 Vincent Le Toux |
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|
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This library is Free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License version 2.1 as published by the Free Software Foundation. |
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|
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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|
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#include <windows.h> |
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#include <tchar.h> |
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#include <cardmod.h> |
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|
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#pragma comment(lib,"Scarddlg") |
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#pragma comment(lib,"Winscard") |
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|
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HMODULE hModule = NULL; |
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CARD_DATA CardData; |
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PCARD_DATA pCardData = NULL; |
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SCARD_ATRMASK atr; |
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TCHAR szCard[256]; |
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|
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extern "C" { |
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|
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// |
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// Heap helpers |
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// |
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|
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LPVOID WINAPI _Alloc(__in SIZE_T cBytes) |
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{ |
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return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, cBytes); |
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} |
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|
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LPVOID WINAPI _ReAlloc( |
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__in LPVOID pvMem, |
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__in SIZE_T cBytes) |
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{ |
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return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, pvMem, cBytes); |
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} |
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|
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void WINAPI _Free( |
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__in LPVOID pvMem) |
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{ |
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HeapFree(GetProcessHeap(), 0, pvMem); |
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} |
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|
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// |
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// Dummy data caching stubs to satisfy the card module callback requirements |
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// |
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|
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DWORD WINAPI _CacheAddFileStub( |
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IN PVOID pvCacheContext, |
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IN LPWSTR wszTag, |
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IN DWORD dwFlags, |
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IN PBYTE pbData, |
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IN DWORD cbData) |
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{ |
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UNREFERENCED_PARAMETER(pvCacheContext); |
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UNREFERENCED_PARAMETER(wszTag); |
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UNREFERENCED_PARAMETER(dwFlags); |
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UNREFERENCED_PARAMETER(pbData); |
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UNREFERENCED_PARAMETER(cbData); |
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return ERROR_SUCCESS; |
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} |
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|
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DWORD WINAPI _CacheLookupFileStub( |
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IN PVOID pvCacheContext, |
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IN LPWSTR wszTag, |
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IN DWORD dwFlags, |
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IN PBYTE *ppbData, |
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IN PDWORD pcbData) |
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{ |
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UNREFERENCED_PARAMETER(pvCacheContext); |
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UNREFERENCED_PARAMETER(wszTag); |
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UNREFERENCED_PARAMETER(dwFlags); |
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UNREFERENCED_PARAMETER(ppbData); |
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UNREFERENCED_PARAMETER(pcbData); |
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return ERROR_NOT_FOUND; |
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} |
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|
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DWORD WINAPI _CacheDeleteFileStub( |
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IN PVOID pvCacheContext, |
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IN LPWSTR wszTag, |
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IN DWORD dwFlags) |
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{ |
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UNREFERENCED_PARAMETER(pvCacheContext); |
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UNREFERENCED_PARAMETER(wszTag); |
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UNREFERENCED_PARAMETER(dwFlags); |
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return ERROR_SUCCESS; |
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} |
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} |
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|
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DWORD Connect(BOOL fSystemDll) |
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{ |
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DWORD dwReturn = 0; |
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SCARDCONTEXT hSCardContext = NULL; |
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SCARDHANDLE hSCardHandle = NULL; |
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TCHAR szCardModule[256]; |
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TCHAR szReader[256]; |
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DWORD dwCardModuleSize = ARRAYSIZE(szCardModule); |
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DWORD dwReaderSize = ARRAYSIZE(szReader); |
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OPENCARDNAME_EX dlgStruct; |
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PFN_CARD_ACQUIRE_CONTEXT pfnCardAcquireContext; |
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|
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__try |
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{ |
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// find a smart card |
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///////////////////// |
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|
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dwReturn = SCardEstablishContext(SCARD_SCOPE_USER, |
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NULL, |
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NULL, |
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&hSCardContext ); |
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if ( SCARD_S_SUCCESS != dwReturn ) |
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{ |
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__leave; |
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} |
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|
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// Initialize the structure. |
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memset(&dlgStruct, 0, sizeof(dlgStruct)); |
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dlgStruct.dwStructSize = sizeof(dlgStruct); |
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dlgStruct.hSCardContext = hSCardContext; |
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dlgStruct.dwFlags = SC_DLG_MINIMAL_UI; |
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dlgStruct.lpstrRdr = szReader; |
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dlgStruct.nMaxRdr = dwReaderSize; |
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dlgStruct.lpstrCard = szCard; |
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dlgStruct.nMaxCard = ARRAYSIZE(szCard); |
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dlgStruct.lpstrTitle = L"Select Card"; |
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dlgStruct.dwShareMode = 0; |
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// Display the select card dialog box. |
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dwReturn = SCardUIDlgSelectCard(&dlgStruct); |
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if ( SCARD_S_SUCCESS != dwReturn ) |
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{ |
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__leave; |
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} |
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|
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// find the dll path / name |
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//////////////////////////// |
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if (fSystemDll) |
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{ |
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|
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dwReturn = SCardGetCardTypeProviderName( |
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hSCardContext, |
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szCard, |
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SCARD_PROVIDER_CARD_MODULE, |
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(PTSTR) &szCardModule, |
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&dwCardModuleSize); |
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if (0 == dwCardModuleSize) |
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{ |
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dwReturn = (DWORD) SCARD_E_UNKNOWN_CARD; |
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__leave; |
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} |
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} |
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else |
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{ |
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#ifdef _M_X64 |
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_tcscpy_s(szCardModule, dwCardModuleSize, TEXT("openpgpmdrv64.dll")); |
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#else |
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_tcscpy_s(szCardModule, dwCardModuleSize, TEXT("openpgpmdrv32.dll")); |
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#endif |
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} |
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// connect to the smart card |
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//////////////////////////// |
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DWORD dwProtocol, dwState; |
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dwReturn = SCardConnect(hSCardContext,szReader,SCARD_SHARE_SHARED,SCARD_PROTOCOL_T1|SCARD_PROTOCOL_T0, &hSCardHandle, &dwProtocol); |
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if ( SCARD_S_SUCCESS != dwReturn ) |
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{ |
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__leave; |
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} |
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atr.cbAtr = 32; |
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dwReturn = SCardStatus(hSCardHandle, szReader, &dwReaderSize, &dwState, &dwProtocol, atr.rgbAtr,&atr.cbAtr); |
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if ( SCARD_S_SUCCESS != dwReturn ) |
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{ |
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__leave; |
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} |
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// load |
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//////// |
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if (NULL == (hModule = LoadLibrary(szCardModule))) |
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{ |
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dwReturn = GetLastError(); |
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__leave; |
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} |
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|
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if (NULL == (pfnCardAcquireContext = |
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(PFN_CARD_ACQUIRE_CONTEXT) GetProcAddress( |
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hModule, "CardAcquireContext"))) |
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{ |
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dwReturn = GetLastError(); |
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__leave; |
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} |
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// initialize context |
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////////////////////// |
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pCardData = &CardData; |
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pCardData->dwVersion = CARD_DATA_CURRENT_VERSION; |
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pCardData->pfnCspAlloc = _Alloc; |
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pCardData->pfnCspFree = _Free; |
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pCardData->pfnCspReAlloc = _ReAlloc; |
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pCardData->pfnCspCacheAddFile = _CacheAddFileStub; |
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pCardData->pfnCspCacheLookupFile = _CacheLookupFileStub; |
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pCardData->pfnCspCacheDeleteFile = _CacheDeleteFileStub; |
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pCardData->hScard = hSCardHandle; |
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pCardData->hSCardCtx = hSCardContext; |
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pCardData->cbAtr = atr.cbAtr; |
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pCardData->pbAtr = atr.rgbAtr; |
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pCardData->pwszCardName = szCard; |
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//dwReturn = SCardBeginTransaction(hSCardHandle); |
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if ( SCARD_S_SUCCESS != dwReturn ) |
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{ |
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__leave; |
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} |
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dwReturn = pfnCardAcquireContext(pCardData, 0); |
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} |
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__finally |
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{ |
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if (dwReturn != 0) |
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{ |
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if (hSCardHandle) |
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{ |
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SCardEndTransaction(hSCardHandle,SCARD_LEAVE_CARD); |
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SCardDisconnect(hSCardHandle,0); |
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} |
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if (hSCardContext) |
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SCardReleaseContext(hSCardContext); |
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} |
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} |
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return dwReturn; |
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} |
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|
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DWORD Disconnect() |
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{ |
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DWORD dwReturn = 0; |
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if (pCardData) |
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{ |
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if (pCardData->hScard) |
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{ |
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SCardEndTransaction(pCardData->hScard,SCARD_LEAVE_CARD); |
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SCardDisconnect(pCardData->hScard,0); |
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} |
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if (pCardData->hSCardCtx) |
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SCardReleaseContext(pCardData->hSCardCtx); |
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pCardData = NULL; |
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} |
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else |
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{ |
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dwReturn = SCARD_E_COMM_DATA_LOST; |
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} |
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return dwReturn; |
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} |
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