void* smartcard_context_thread(SMARTCARD_CONTEXT* pContext)
{
DWORD nCount;
DWORD status;
HANDLE hEvents[2];
wMessage message;
SMARTCARD_DEVICE* smartcard;
SMARTCARD_OPERATION* operation;
smartcard = pContext->smartcard;
nCount = 0;
hEvents[nCount++] = MessageQueue_Event(pContext->IrpQueue);
while (1)
{
status = WaitForMultipleObjects(nCount, hEvents, FALSE, INFINITE);
if (WaitForSingleObject(MessageQueue_Event(pContext->IrpQueue), 0) == WAIT_OBJECT_0)
{
if (!MessageQueue_Peek(pContext->IrpQueue, &message, TRUE))
break;
if (message.id == WMQ_QUIT)
break;
operation = (SMARTCARD_OPERATION*) message.wParam;
if (operation)
{
status = smartcard_irp_device_control_call(smartcard, operation);
Queue_Enqueue(smartcard->CompletedIrpQueue, (void*) operation->irp);
free(operation);
}
}
}
ExitThread(0);
return NULL;
}
void* smartcard_context_thread(SMARTCARD_CONTEXT* pContext)
{
DWORD nCount;
LONG status = 0;
DWORD waitStatus;
HANDLE hEvents[2];
wMessage message;
SMARTCARD_DEVICE* smartcard;
SMARTCARD_OPERATION* operation;
UINT error = CHANNEL_RC_OK;
smartcard = pContext->smartcard;
nCount = 0;
hEvents[nCount++] = MessageQueue_Event(pContext->IrpQueue);
while (1)
{
waitStatus = WaitForMultipleObjects(nCount, hEvents, FALSE, INFINITE);
if (waitStatus == WAIT_FAILED)
{
error = GetLastError();
WLog_ERR(TAG, "WaitForMultipleObjects failed with error %lu!", error);
break;
}
waitStatus = WaitForSingleObject(MessageQueue_Event(pContext->IrpQueue), 0);
if (waitStatus == WAIT_FAILED)
{
error = GetLastError();
WLog_ERR(TAG, "WaitForSingleObject failed with error %lu!", error);
break;
}
if (waitStatus == WAIT_OBJECT_0)
{
if (!MessageQueue_Peek(pContext->IrpQueue, &message, TRUE))
{
WLog_ERR(TAG, "MessageQueue_Peek failed!");
status = ERROR_INTERNAL_ERROR;
break;
}
if (message.id == WMQ_QUIT)
break;
operation = (SMARTCARD_OPERATION*) message.wParam;
if (operation)
{
if ((status = smartcard_irp_device_control_call(smartcard, operation)))
{
WLog_ERR(TAG, "smartcard_irp_device_control_call failed with error %lu", status);
break;
}
if (!Queue_Enqueue(smartcard->CompletedIrpQueue, (void*) operation->irp))
{
WLog_ERR(TAG, "Queue_Enqueue failed!");
status = ERROR_INTERNAL_ERROR;
break;
}
free(operation);
}
}
}
if (status && smartcard->rdpcontext)
setChannelError(smartcard->rdpcontext, error, "smartcard_context_thread reported an error");
ExitThread((DWORD)status);
return NULL;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
UINT smartcard_process_irp(SMARTCARD_DEVICE* smartcard, IRP* irp)
{
void* key;
LONG status;
BOOL asyncIrp = FALSE;
SMARTCARD_CONTEXT* pContext = NULL;
SMARTCARD_OPERATION* operation = NULL;
key = (void*) (size_t) irp->CompletionId;
if (!ListDictionary_Add(smartcard->rgOutstandingMessages, key, irp))
{
WLog_ERR(TAG, "ListDictionary_Add failed!");
return ERROR_INTERNAL_ERROR;
}
if (irp->MajorFunction == IRP_MJ_DEVICE_CONTROL)
{
operation = (SMARTCARD_OPERATION*) calloc(1, sizeof(SMARTCARD_OPERATION));
if (!operation)
{
WLog_ERR(TAG, "calloc failed!");
return CHANNEL_RC_NO_MEMORY;
}
operation->irp = irp;
status = smartcard_irp_device_control_decode(smartcard, operation);
if (status != SCARD_S_SUCCESS)
{
irp->IoStatus = (UINT32)STATUS_UNSUCCESSFUL;
if (!Queue_Enqueue(smartcard->CompletedIrpQueue, (void*) irp))
{
WLog_ERR(TAG, "Queue_Enqueue failed!");
return ERROR_INTERNAL_ERROR;
}
return CHANNEL_RC_OK;
}
asyncIrp = TRUE;
/**
* The following matches mstsc's behavior of processing
* only certain requests asynchronously while processing
* those expected to return fast synchronously.
*/
switch (operation->ioControlCode)
{
case SCARD_IOCTL_ESTABLISHCONTEXT:
case SCARD_IOCTL_RELEASECONTEXT:
case SCARD_IOCTL_ISVALIDCONTEXT:
case SCARD_IOCTL_LISTREADERGROUPSA:
case SCARD_IOCTL_LISTREADERGROUPSW:
case SCARD_IOCTL_LISTREADERSA:
case SCARD_IOCTL_LISTREADERSW:
case SCARD_IOCTL_INTRODUCEREADERGROUPA:
case SCARD_IOCTL_INTRODUCEREADERGROUPW:
case SCARD_IOCTL_FORGETREADERGROUPA:
case SCARD_IOCTL_FORGETREADERGROUPW:
case SCARD_IOCTL_INTRODUCEREADERA:
case SCARD_IOCTL_INTRODUCEREADERW:
case SCARD_IOCTL_FORGETREADERA:
case SCARD_IOCTL_FORGETREADERW:
case SCARD_IOCTL_ADDREADERTOGROUPA:
case SCARD_IOCTL_ADDREADERTOGROUPW:
case SCARD_IOCTL_REMOVEREADERFROMGROUPA:
case SCARD_IOCTL_REMOVEREADERFROMGROUPW:
case SCARD_IOCTL_LOCATECARDSA:
case SCARD_IOCTL_LOCATECARDSW:
case SCARD_IOCTL_LOCATECARDSBYATRA:
case SCARD_IOCTL_LOCATECARDSBYATRW:
case SCARD_IOCTL_CANCEL:
case SCARD_IOCTL_READCACHEA:
case SCARD_IOCTL_READCACHEW:
case SCARD_IOCTL_WRITECACHEA:
case SCARD_IOCTL_WRITECACHEW:
case SCARD_IOCTL_GETREADERICON:
case SCARD_IOCTL_GETDEVICETYPEID:
asyncIrp = FALSE;
break;
case SCARD_IOCTL_GETSTATUSCHANGEA:
case SCARD_IOCTL_GETSTATUSCHANGEW:
asyncIrp = TRUE;
break;
case SCARD_IOCTL_CONNECTA:
case SCARD_IOCTL_CONNECTW:
case SCARD_IOCTL_RECONNECT:
case SCARD_IOCTL_DISCONNECT:
case SCARD_IOCTL_BEGINTRANSACTION:
case SCARD_IOCTL_ENDTRANSACTION:
case SCARD_IOCTL_STATE:
case SCARD_IOCTL_STATUSA:
case SCARD_IOCTL_STATUSW:
case SCARD_IOCTL_TRANSMIT:
case SCARD_IOCTL_CONTROL:
case SCARD_IOCTL_GETATTRIB:
case SCARD_IOCTL_SETATTRIB:
case SCARD_IOCTL_GETTRANSMITCOUNT:
asyncIrp = TRUE;
break;
case SCARD_IOCTL_ACCESSSTARTEDEVENT:
case SCARD_IOCTL_RELEASESTARTEDEVENT:
asyncIrp = FALSE;
break;
}
pContext = ListDictionary_GetItemValue(smartcard->rgSCardContextList, (void*) operation->hContext);
if (!pContext)
asyncIrp = FALSE;
if (!asyncIrp)
{
if ((status = smartcard_irp_device_control_call(smartcard, operation)))
{
WLog_ERR(TAG, "smartcard_irp_device_control_call failed with error %lu!", status);
return (UINT32)status;
}
if (!Queue_Enqueue(smartcard->CompletedIrpQueue, (void*) irp))
{
WLog_ERR(TAG, "Queue_Enqueue failed!");
return ERROR_INTERNAL_ERROR;
}
free(operation);
}
else
{
if (pContext)
{
if (!MessageQueue_Post(pContext->IrpQueue, NULL, 0, (void*) operation, NULL))
{
WLog_ERR(TAG, "MessageQueue_Post failed!");
return ERROR_INTERNAL_ERROR;
}
}
}
}
else
{
WLog_ERR(TAG, "Unexpected SmartCard IRP: MajorFunction 0x%08X MinorFunction: 0x%08X",
irp->MajorFunction, irp->MinorFunction);
irp->IoStatus = (UINT32)STATUS_NOT_SUPPORTED;
if (!Queue_Enqueue(smartcard->CompletedIrpQueue, (void*) irp))
{
WLog_ERR(TAG, "Queue_Enqueue failed!");
return ERROR_INTERNAL_ERROR;
}
}
return CHANNEL_RC_OK;
}
