1346 lines
34 KiB
C
1346 lines
34 KiB
C
/*++
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Copyright (C) Microsoft Corporation and Litronic, 1998 - 1999
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Module Name:
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L220SCR.c - Main module for Driver
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Abstract:
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Author:
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Brian Manahan
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Environment:
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Kernel mode
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Revision History :
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--*/
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#include <stdio.h>
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#include "L220SCR.h"
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// Make functions pageable
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#pragma alloc_text(PAGEABLE, Lit220IsCardPresent)
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#pragma alloc_text(PAGEABLE, Lit220Initialize)
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#pragma alloc_text(PAGEABLE, Lit220ConfigureSerialPort)
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#pragma alloc_text(PAGEABLE, Lit220CreateClose)
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#pragma alloc_text(PAGEABLE, Lit220Unload)
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#pragma alloc_text(PAGEABLE, Lit220InitializeInputFilter)
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#if DBG
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#pragma optimize ("", off)
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#endif
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BOOLEAN
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Lit220IsCardPresent(
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IN PSMARTCARD_EXTENSION SmartcardExtension
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)
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/*++
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Routine Description:
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This routine checks if a card is in the socket. It is only done
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when the driver starts to set the intial state. After that the
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reader will tell us when the status changes.
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It makes synchronous calls to the serial port.
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--*/
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{
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PSMARTCARD_REQUEST smartcardRequest = &SmartcardExtension->SmartcardRequest;
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NTSTATUS status;
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PAGED_CODE();
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SmartcardDebug(
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DEBUG_TRACE,
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("%s!Lit220IsCardPresent: Enter\n",
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DRIVER_NAME)
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);
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smartcardRequest->BufferLength = 0;
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//
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// Send a get reader status to see if a card is inserted
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//
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smartcardRequest->Buffer[smartcardRequest->BufferLength++] =
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LIT220_READER_ATTENTION;
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smartcardRequest->Buffer[smartcardRequest->BufferLength++] =
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LIT220_READER_ATTENTION;
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smartcardRequest->Buffer[smartcardRequest->BufferLength++] =
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LIT220_GET_READER_STATUS;
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//
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// We Expect to get a response
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//
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SmartcardExtension->ReaderExtension->WaitMask |= WAIT_DATA;
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// Send the command
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status = Lit220Command(
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SmartcardExtension
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);
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if (status != STATUS_SUCCESS) {
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return FALSE;
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}
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// Check if length is correct
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if (SmartcardExtension->SmartcardReply.BufferLength != LIT220_READER_STATUS_LEN) {
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SmartcardDebug(
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DEBUG_ERROR,
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("%s!Lit220IsCardPresent: Reader response - bufLen %X, should be %X\n",
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DRIVER_NAME,
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SmartcardExtension->SmartcardReply.BufferLength,
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LIT220_READER_STATUS_LEN)
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);
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return FALSE;
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}
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// Check status byte to see if card is inserted
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if (SmartcardExtension->SmartcardReply.Buffer[0] & LIT220_STATUS_CARD_INSERTED) {
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SmartcardDebug(
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DEBUG_DRIVER,
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("%s!Lit220IsCardPresent: Card is inserted\n",
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DRIVER_NAME)
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);
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return TRUE;
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}
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SmartcardDebug(
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DEBUG_DRIVER,
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("%s!Lit220IsCardPresent: Card is not inserted\n",
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DRIVER_NAME)
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);
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return FALSE;
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}
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NTSTATUS
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Lit220Initialize(
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IN PSMARTCARD_EXTENSION SmartcardExtension
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)
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/*++
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Routine Description:
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This routine initializes the reader for use.
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It sets up the serial communications, checks to make sure our
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reader is attached, checks if a card is inserted or not and
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sets up the input filter for receiving bytes from the reader
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asynchronously.
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--*/
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{
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PREADER_EXTENSION readerExtension;
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NTSTATUS status;
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PAGED_CODE();
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SmartcardDebug(
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DEBUG_TRACE,
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("%s!Lit220Initialize: Enter - SmartcardExtension %X\n",
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DRIVER_NAME,
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SmartcardExtension)
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);
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readerExtension = SmartcardExtension->ReaderExtension;
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//
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// Set the serial config data
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//
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// We always talk to the at 57600 no matter what speed the reader talks to the card
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readerExtension->SerialConfigData.BaudRate.BaudRate = 57600;
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readerExtension->SerialConfigData.LineControl.StopBits = STOP_BITS_2;
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readerExtension->SerialConfigData.LineControl.Parity = EVEN_PARITY;
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readerExtension->SerialConfigData.LineControl.WordLength = SERIAL_DATABITS_8;
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//
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// set timeouts
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//
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readerExtension->SerialConfigData.Timeouts.ReadIntervalTimeout = 10;
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readerExtension->SerialConfigData.Timeouts.ReadTotalTimeoutConstant = 1;
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readerExtension->SerialConfigData.Timeouts.ReadTotalTimeoutMultiplier = 1;
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//
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// set special characters
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//
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readerExtension->SerialConfigData.SerialChars.ErrorChar = 0;
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readerExtension->SerialConfigData.SerialChars.EofChar = 0;
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readerExtension->SerialConfigData.SerialChars.EventChar = 0;
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readerExtension->SerialConfigData.SerialChars.XonChar = 0;
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readerExtension->SerialConfigData.SerialChars.XoffChar = 0;
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readerExtension->SerialConfigData.SerialChars.BreakChar = 0xFF;
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//
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// Set handflow
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//
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readerExtension->SerialConfigData.HandFlow.XonLimit = 0;
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readerExtension->SerialConfigData.HandFlow.XoffLimit = 0;
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readerExtension->SerialConfigData.HandFlow.FlowReplace = SERIAL_XOFF_CONTINUE ;
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readerExtension->SerialConfigData.HandFlow.ControlHandShake = 0;
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//
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// Now setup default the card state
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//
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SmartcardExtension->ReaderCapabilities.CurrentState = (ULONG) SCARD_UNKNOWN;
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//
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// Set the MechProperties
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//
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SmartcardExtension->ReaderCapabilities.MechProperties = 0;
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try {
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//
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// Configure the serial port
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//
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status = Lit220ConfigureSerialPort(
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SmartcardExtension
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);
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if (status != STATUS_SUCCESS) {
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SmartcardLogError(
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SmartcardExtension->OsData->DeviceObject,
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LIT220_SERIAL_COMUNICATION_FAILURE,
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NULL,
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0
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);
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SmartcardDebug(DEBUG_ERROR,
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("%s!Lit220Initialize: ConfiguringSerialPort failed %X\n",
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DRIVER_NAME,
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status)
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);
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leave;
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}
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//
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// Initailize the input filter now
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//
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status = Lit220InitializeInputFilter(
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SmartcardExtension
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);
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if (status != STATUS_SUCCESS) {
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SmartcardLogError(
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SmartcardExtension->OsData->DeviceObject,
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LIT220_SERIAL_COMUNICATION_FAILURE,
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NULL,
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0
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);
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SmartcardDebug(DEBUG_ERROR,
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("%s!Lit220Initialize: Lit220InitializeInputFilter failed %X\n",
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DRIVER_NAME, status)
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);
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leave;
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}
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//
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// Now check if the card is inserted
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//
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if (Lit220IsCardPresent(SmartcardExtension)) {
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// Card is inserted
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SmartcardExtension->ReaderCapabilities.CurrentState =
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SCARD_SWALLOWED;
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SmartcardExtension->CardCapabilities.Protocol.Selected =
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SCARD_PROTOCOL_UNDEFINED;
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SmartcardExtension->ReaderExtension->CardIn = TRUE;
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} else {
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// Card is not inserted
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SmartcardExtension->ReaderCapabilities.CurrentState =
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SCARD_ABSENT;
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SmartcardExtension->CardCapabilities.Protocol.Selected =
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SCARD_PROTOCOL_UNDEFINED;
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SmartcardExtension->ReaderExtension->CardIn = FALSE;
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}
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}
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finally
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{
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SmartcardDebug(DEBUG_TRACE,
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("%s!Lit220Initialize: Exit - status %X\n",
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DRIVER_NAME, status)
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);
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}
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return status;
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}
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NTSTATUS
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Lit220ConfigureSerialPort(
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PSMARTCARD_EXTENSION SmartcardExtension
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)
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/*++
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Routine Description:
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This routine will appropriately configure the serial port.
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It makes synchronous calls to the serial port.
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Arguments:
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SmartcardExtension - Pointer to smart card struct
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Return Value:
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NTSTATUS
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--*/
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{
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PSERIAL_READER_CONFIG configData = &SmartcardExtension->ReaderExtension->SerialConfigData;
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NTSTATUS status = STATUS_SUCCESS;
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LARGE_INTEGER WaitTime;
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PSERIALPERF_STATS perfData;
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USHORT indx;
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PUCHAR request = SmartcardExtension->SmartcardRequest.Buffer;
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PAGED_CODE();
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SmartcardExtension->SmartcardRequest.BufferLength = 0;
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SmartcardExtension->SmartcardReply.BufferLength =
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SmartcardExtension->SmartcardReply.BufferSize;
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for (indx = 0; NT_SUCCESS(status); indx++) {
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switch (indx) {
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case 0:
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//
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// Set up baudrate for the Lit220 reader
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//
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SmartcardExtension->ReaderExtension->SerialIoControlCode =
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IOCTL_SERIAL_SET_BAUD_RATE;
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SmartcardExtension->SmartcardRequest.Buffer =
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(PUCHAR) &configData->BaudRate;
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SmartcardExtension->SmartcardRequest.BufferLength =
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sizeof(SERIAL_BAUD_RATE);
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break;
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case 1:
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//
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// Set up line control parameters
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//
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SmartcardExtension->ReaderExtension->SerialIoControlCode =
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IOCTL_SERIAL_SET_LINE_CONTROL;
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SmartcardExtension->SmartcardRequest.Buffer =
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(PUCHAR) &configData->LineControl;
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SmartcardExtension->SmartcardRequest.BufferLength =
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sizeof(SERIAL_LINE_CONTROL);
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break;
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case 2:
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//
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// Set serial special characters
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//
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SmartcardExtension->ReaderExtension->SerialIoControlCode =
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IOCTL_SERIAL_SET_CHARS;
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SmartcardExtension->SmartcardRequest.Buffer =
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(PUCHAR) &configData->SerialChars;
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SmartcardExtension->SmartcardRequest.BufferLength =
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sizeof(SERIAL_CHARS);
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break;
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case 3:
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//
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// Set up timeouts
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//
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SmartcardExtension->ReaderExtension->SerialIoControlCode =
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IOCTL_SERIAL_SET_TIMEOUTS;
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SmartcardExtension->SmartcardRequest.Buffer =
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(PUCHAR) &configData->Timeouts;
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SmartcardExtension->SmartcardRequest.BufferLength =
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sizeof(SERIAL_TIMEOUTS);
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break;
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case 4:
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//
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// Set flowcontrol and handshaking
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//
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SmartcardExtension->ReaderExtension->SerialIoControlCode =
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IOCTL_SERIAL_SET_HANDFLOW;
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SmartcardExtension->SmartcardRequest.Buffer =
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(PUCHAR) &configData->HandFlow;
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SmartcardExtension->SmartcardRequest.BufferLength =
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sizeof(SERIAL_HANDFLOW);
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break;
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case 5:
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//
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// Set break off
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//
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SmartcardExtension->ReaderExtension->SerialIoControlCode =
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IOCTL_SERIAL_SET_BREAK_OFF;
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break;
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case 6:
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SmartcardExtension->ReaderExtension->SerialIoControlCode =
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IOCTL_SERIAL_SET_DTR;
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break;
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case 7:
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// 500ms delay before we send the next command
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// To give the reader a chance to calm down after we started it.
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WaitTime.HighPart = -1;
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WaitTime.LowPart = -500 * 10000;
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KeDelayExecutionThread(
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KernelMode,
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FALSE,
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&WaitTime
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);
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// Clear possible error condition with the serial port
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perfData =
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(PSERIALPERF_STATS) SmartcardExtension->SmartcardReply.Buffer;
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// we have to call GetCommStatus to reset the error condition
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SmartcardExtension->ReaderExtension->SerialIoControlCode =
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IOCTL_SERIAL_GET_COMMSTATUS;
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SmartcardExtension->SmartcardRequest.BufferLength = 0;
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SmartcardExtension->SmartcardReply.BufferLength =
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sizeof(SERIAL_STATUS);
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break;
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case 8:
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return STATUS_SUCCESS;
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}
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// Send the command to the serial driver
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status = Lit220SerialIo(SmartcardExtension);
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//
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// restore pointer to original request buffer
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//
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SmartcardExtension->SmartcardRequest.Buffer = request;
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}
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return status;
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}
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NTSTATUS
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Lit220CreateClose(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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)
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/*++
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Routine Description:
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This routine is called by the I/O system when the device is opened or closed.
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Arguments:
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DeviceObject - Pointer to device object for this miniport
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Irp - IRP involved.
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Return Value:
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STATUS_SUCCESS.
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--*/
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{
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PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
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PIO_STACK_LOCATION irpStack = IoGetCurrentIrpStackLocation(Irp);
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NTSTATUS status = STATUS_SUCCESS;
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if (irpStack->MajorFunction == IRP_MJ_CREATE) {
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status = SmartcardAcquireRemoveLockWithTag(
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&deviceExtension->SmartcardExtension,
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'lCrC'
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);
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if (status != STATUS_SUCCESS) {
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status = STATUS_DEVICE_REMOVED;
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} else {
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// test if the device has been opened already
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if (InterlockedCompareExchange(
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&deviceExtension->ReaderOpen,
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TRUE,
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FALSE) == FALSE) {
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SmartcardDebug(
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DEBUG_DRIVER,
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("%s!Lit220CreateClose: Open\n",
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DRIVER_NAME)
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);
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} else {
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// the device is already in use
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status = STATUS_UNSUCCESSFUL;
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// release the lock
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SmartcardReleaseRemoveLockWithTag(
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&deviceExtension->SmartcardExtension,
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'lCrC'
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);
|
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}
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}
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} else {
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SmartcardDebug(
|
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DEBUG_DRIVER,
|
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("%s!Lit220CreateClose: Close\n",
|
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DRIVER_NAME)
|
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);
|
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SmartcardReleaseRemoveLockWithTag(
|
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&deviceExtension->SmartcardExtension,
|
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'lCrC'
|
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);
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|
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deviceExtension->ReaderOpen = FALSE;
|
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}
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|
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Irp->IoStatus.Status = status;
|
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Irp->IoStatus.Information = 0;
|
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
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return status;
|
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}
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|
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NTSTATUS
|
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Lit220Cancel(
|
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IN PDEVICE_OBJECT DeviceObject,
|
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IN PIRP Irp
|
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)
|
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/*++
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|
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Routine Description:
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|
|
|
This routine is called by the I/O system
|
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when the irp should be cancelled
|
|
|
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Arguments:
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|
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DeviceObject - Pointer to device object for this miniport
|
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Irp - IRP involved.
|
|
|
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Return Value:
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STATUS_CANCELLED
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|
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--*/
|
|
|
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{
|
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PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
|
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PSMARTCARD_EXTENSION smartcardExtension = &deviceExtension->SmartcardExtension;
|
|
|
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SmartcardDebug(
|
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DEBUG_TRACE,
|
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("%s!Lit220Cancel: Enter\n",
|
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DRIVER_NAME)
|
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);
|
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|
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ASSERT(Irp == smartcardExtension->OsData->NotificationIrp);
|
|
|
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IoReleaseCancelSpinLock(
|
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Irp->CancelIrql
|
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);
|
|
|
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Lit220CompleteCardTracking(
|
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smartcardExtension
|
|
);
|
|
|
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SmartcardDebug(
|
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DEBUG_TRACE,
|
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("%s!Lit220Cancel: Exit\n",
|
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DRIVER_NAME)
|
|
);
|
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|
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return STATUS_CANCELLED;
|
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}
|
|
|
|
|
|
|
|
|
|
NTSTATUS
|
|
Lit220Cleanup(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine is called by the I/O system when the calling thread terminates
|
|
or when the irp should be cancelled
|
|
|
|
Arguments:
|
|
|
|
DeviceObject - Pointer to device object for this miniport
|
|
Irp - IRP involved.
|
|
|
|
Return Value:
|
|
|
|
STATUS_CANCELLED
|
|
|
|
--*/
|
|
{
|
|
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
|
|
PSMARTCARD_EXTENSION smartcardExtension = &deviceExtension->SmartcardExtension;
|
|
PREADER_EXTENSION ReaderExtension = smartcardExtension->ReaderExtension;
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
KIRQL oldOsDataIrql;
|
|
|
|
SmartcardDebug(
|
|
DEBUG_TRACE,
|
|
("%s!Lit220Cleanup: Enter\n",
|
|
DRIVER_NAME)
|
|
);
|
|
|
|
Lit220CompleteCardTracking(smartcardExtension);
|
|
|
|
SmartcardDebug(
|
|
DEBUG_DRIVER,
|
|
("%s!Lit220Cleanup: Completing IRP %lx\n",
|
|
DRIVER_NAME,
|
|
Irp)
|
|
);
|
|
|
|
Irp->IoStatus.Information = 0;
|
|
Irp->IoStatus.Status = STATUS_SUCCESS;
|
|
|
|
IoCompleteRequest(
|
|
Irp,
|
|
IO_NO_INCREMENT
|
|
);
|
|
|
|
SmartcardDebug(
|
|
DEBUG_TRACE,
|
|
("%s!Lit220Cleanup: Exit\n",
|
|
DRIVER_NAME)
|
|
);
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
|
|
|
|
VOID
|
|
Lit220Unload(
|
|
IN PDRIVER_OBJECT DriverObject
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
The driver unload routine. This is called by the I/O system
|
|
when the device is unloaded from memory.
|
|
|
|
Arguments:
|
|
|
|
DriverObject - Pointer to driver object created by system.
|
|
|
|
Return Value:
|
|
|
|
STATUS_SUCCESS.
|
|
|
|
--*/
|
|
{
|
|
PDEVICE_OBJECT deviceObject = DriverObject->DeviceObject;
|
|
NTSTATUS status;
|
|
|
|
PAGED_CODE();
|
|
|
|
SmartcardDebug(
|
|
DEBUG_TRACE,
|
|
("%s!Lit220Unload: Enter\n",
|
|
DRIVER_NAME)
|
|
);
|
|
|
|
//
|
|
// All the device objects should be gone.
|
|
//
|
|
ASSERT (NULL == DriverObject->DeviceObject);
|
|
|
|
//
|
|
// Here we free any resources allocated in DriverEntry
|
|
//
|
|
|
|
SmartcardDebug(
|
|
DEBUG_TRACE,
|
|
("%s!Lit220Unload: Exit\n",
|
|
DRIVER_NAME)
|
|
);
|
|
}
|
|
|
|
|
|
|
|
|
|
NTSTATUS
|
|
Lit220SerialIo(
|
|
IN PSMARTCARD_EXTENSION SmartcardExtension
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine sends IOCTL's to the serial driver. It waits on for their
|
|
completion, and then returns.
|
|
|
|
Arguments:
|
|
|
|
Return Value:
|
|
|
|
NTSTATUS
|
|
|
|
--*/
|
|
{
|
|
NTSTATUS status;
|
|
ULONG currentByte = 0;
|
|
DWORD indx;
|
|
PDEVICE_EXTENSION devExt = SmartcardExtension->OsData->DeviceObject->DeviceExtension;
|
|
|
|
if (KeReadStateEvent(&devExt->SerialCloseDone)) {
|
|
|
|
//
|
|
// we have no connection to serial, fail the call
|
|
// this could be the case if the reader was removed
|
|
// during stand by / hibernation
|
|
//
|
|
return STATUS_UNSUCCESSFUL;
|
|
}
|
|
|
|
//
|
|
// Check if the buffers are large enough
|
|
//
|
|
ASSERT(SmartcardExtension->SmartcardReply.BufferLength <=
|
|
SmartcardExtension->SmartcardReply.BufferSize);
|
|
|
|
ASSERT(SmartcardExtension->SmartcardRequest.BufferLength <=
|
|
SmartcardExtension->SmartcardRequest.BufferSize);
|
|
|
|
if (SmartcardExtension->SmartcardReply.BufferLength >
|
|
SmartcardExtension->SmartcardReply.BufferSize ||
|
|
SmartcardExtension->SmartcardRequest.BufferLength >
|
|
SmartcardExtension->SmartcardRequest.BufferSize) {
|
|
|
|
SmartcardLogError(
|
|
SmartcardExtension->OsData->DeviceObject,
|
|
LIT220_BUFFER_TOO_SMALL,
|
|
NULL,
|
|
0
|
|
);
|
|
|
|
return STATUS_BUFFER_TOO_SMALL;
|
|
}
|
|
|
|
do {
|
|
|
|
IO_STATUS_BLOCK ioStatus;
|
|
KEVENT event;
|
|
PIRP irp;
|
|
PIO_STACK_LOCATION irpNextStack;
|
|
PUCHAR requestBuffer = NULL;
|
|
PUCHAR replyBuffer = SmartcardExtension->SmartcardReply.Buffer;
|
|
ULONG requestBufferLength = 0;
|
|
ULONG replyBufferLength = SmartcardExtension->SmartcardReply.BufferLength;
|
|
|
|
KeInitializeEvent(
|
|
&event,
|
|
NotificationEvent,
|
|
FALSE
|
|
);
|
|
|
|
if (SmartcardExtension->ReaderExtension->SerialIoControlCode ==
|
|
IOCTL_SMARTCARD_220_WRITE) {
|
|
|
|
//
|
|
// If we write data to the smart card we only write byte by byte,
|
|
// because we have to insert a delay between every sent byte
|
|
//
|
|
requestBufferLength =
|
|
SmartcardExtension->SmartcardRequest.BufferLength;
|
|
|
|
requestBuffer =
|
|
SmartcardExtension->SmartcardRequest.Buffer;
|
|
|
|
#if DBG // DbgPrint the buffer
|
|
SmartcardDebug(
|
|
DEBUG_DRIVER,
|
|
("%s!Lit220SerialIo - Sending Buffer - ",
|
|
DRIVER_NAME)
|
|
);
|
|
for (indx=0; indx<requestBufferLength; indx++){
|
|
SmartcardDebug(
|
|
DEBUG_DRIVER,
|
|
("%X, ",
|
|
requestBuffer[indx])
|
|
);
|
|
}
|
|
SmartcardDebug(
|
|
DEBUG_DRIVER,
|
|
("\n")
|
|
);
|
|
#endif
|
|
} else {
|
|
|
|
requestBufferLength =
|
|
SmartcardExtension->SmartcardRequest.BufferLength;
|
|
|
|
requestBuffer =
|
|
(requestBufferLength ?
|
|
SmartcardExtension->SmartcardRequest.Buffer : NULL);
|
|
}
|
|
|
|
//
|
|
// Build irp to be sent to serial driver
|
|
//
|
|
irp = IoBuildDeviceIoControlRequest(
|
|
SmartcardExtension->ReaderExtension->SerialIoControlCode,
|
|
SmartcardExtension->ReaderExtension->ConnectedSerialPort,
|
|
requestBuffer,
|
|
requestBufferLength,
|
|
replyBuffer,
|
|
replyBufferLength,
|
|
FALSE,
|
|
&event,
|
|
&ioStatus
|
|
);
|
|
|
|
ASSERT(irp != NULL);
|
|
|
|
if (irp == NULL) {
|
|
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
irpNextStack = IoGetNextIrpStackLocation(irp);
|
|
|
|
|
|
switch (SmartcardExtension->ReaderExtension->SerialIoControlCode) {
|
|
|
|
//
|
|
// The serial driver trasfers data from/to irp->AssociatedIrp.SystemBuffer
|
|
//
|
|
case IOCTL_SMARTCARD_220_WRITE:
|
|
irpNextStack->MajorFunction = IRP_MJ_WRITE;
|
|
irpNextStack->Parameters.Write.Length =
|
|
SmartcardExtension->SmartcardRequest.BufferLength;
|
|
break;
|
|
|
|
case IOCTL_SMARTCARD_220_READ:
|
|
irpNextStack->MajorFunction = IRP_MJ_READ;
|
|
irpNextStack->Parameters.Read.Length =
|
|
SmartcardExtension->SmartcardReply.BufferLength;
|
|
|
|
break;
|
|
}
|
|
|
|
|
|
// Send the command to the serial driver
|
|
status = IoCallDriver(
|
|
SmartcardExtension->ReaderExtension->ConnectedSerialPort,
|
|
irp
|
|
);
|
|
|
|
if (status == STATUS_PENDING) {
|
|
|
|
// Wait for the command to complete
|
|
KeWaitForSingleObject(
|
|
&event,
|
|
Suspended,
|
|
KernelMode,
|
|
FALSE,
|
|
NULL
|
|
);
|
|
|
|
status = ioStatus.Status;
|
|
}
|
|
|
|
} while (status == STATUS_MORE_PROCESSING_REQUIRED);
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
|
|
|
|
NTSTATUS
|
|
Lit220InitializeInputFilter(
|
|
PSMARTCARD_EXTENSION SmartcardExtension
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine initialized input filter. It calls the serial driver to
|
|
set a wait mask for character input or DSR change. After that it installs a completion
|
|
routine to be called when a character is received or when DSR changes.
|
|
The completion routine for the wait is Lit220SerialEventCallback and that IRP will
|
|
run until the device is ready to be removed.
|
|
|
|
Arguments:
|
|
|
|
SmartcardExtension - Pointer to our smartcard structure
|
|
|
|
Return Value:
|
|
|
|
NTSTATUS
|
|
|
|
--*/
|
|
{
|
|
NTSTATUS status;
|
|
PREADER_EXTENSION readerExtension = SmartcardExtension->ReaderExtension;
|
|
|
|
PAGED_CODE();
|
|
|
|
// Set the WaitMask
|
|
SmartcardExtension->ReaderExtension->SerialConfigData.WaitMask =
|
|
SERIAL_EV_RXCHAR | SERIAL_EV_DSR;
|
|
|
|
KeInitializeEvent(
|
|
&SmartcardExtension->ReaderExtension->CardStatus.Event,
|
|
NotificationEvent,
|
|
FALSE
|
|
);
|
|
|
|
try {
|
|
//
|
|
// Send a wait mask to the serial driver.
|
|
// This call only sets the wait mask.
|
|
// We want to be informed if a character is received
|
|
//
|
|
SmartcardExtension->ReaderExtension->CardStatus.Irp = IoBuildDeviceIoControlRequest(
|
|
IOCTL_SERIAL_SET_WAIT_MASK,
|
|
SmartcardExtension->ReaderExtension->ConnectedSerialPort,
|
|
&SmartcardExtension->ReaderExtension->SerialConfigData.WaitMask,
|
|
sizeof(SmartcardExtension->ReaderExtension->SerialConfigData.WaitMask),
|
|
NULL,
|
|
0,
|
|
FALSE,
|
|
&(SmartcardExtension->ReaderExtension->CardStatus.Event),
|
|
&(SmartcardExtension->ReaderExtension->CardStatus.IoStatus)
|
|
);
|
|
|
|
if (SmartcardExtension->ReaderExtension->CardStatus.Irp == NULL) {
|
|
SmartcardDebug(
|
|
DEBUG_DRIVER,
|
|
("%s!Lit220InitializeCardTracking: Error STATUS_INSUFFICIENT_RESOURCES\n",
|
|
DRIVER_NAME);
|
|
);
|
|
|
|
status = STATUS_INSUFFICIENT_RESOURCES;
|
|
leave;
|
|
}
|
|
|
|
// Call the serial driver
|
|
status = IoCallDriver(
|
|
SmartcardExtension->ReaderExtension->ConnectedSerialPort,
|
|
SmartcardExtension->ReaderExtension->CardStatus.Irp,
|
|
);
|
|
|
|
if (status == STATUS_SUCCESS) {
|
|
|
|
KIRQL oldIrql;
|
|
LARGE_INTEGER delayPeriod;
|
|
PIO_STACK_LOCATION irpSp;
|
|
|
|
//
|
|
// Now tell the serial driver that we want to be informed
|
|
// if a character is received or DSR changes
|
|
//
|
|
readerExtension->CardStatus.Irp = IoAllocateIrp(
|
|
(CCHAR) (SmartcardExtension->OsData->DeviceObject->StackSize + 1),
|
|
FALSE
|
|
);
|
|
|
|
if (readerExtension->CardStatus.Irp == NULL) {
|
|
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
irpSp = IoGetNextIrpStackLocation( readerExtension->CardStatus.Irp );
|
|
irpSp->MajorFunction = IRP_MJ_DEVICE_CONTROL;
|
|
|
|
irpSp->Parameters.DeviceIoControl.InputBufferLength = 0;
|
|
irpSp->Parameters.DeviceIoControl.OutputBufferLength =
|
|
sizeof(readerExtension->SerialConfigData.WaitMask);
|
|
irpSp->Parameters.DeviceIoControl.IoControlCode =
|
|
IOCTL_SERIAL_WAIT_ON_MASK;
|
|
|
|
readerExtension->CardStatus.Irp->AssociatedIrp.SystemBuffer =
|
|
&readerExtension->SerialConfigData.WaitMask;
|
|
|
|
//
|
|
// this artificial delay is necessary to make this driver work
|
|
// with digi board cards
|
|
//
|
|
delayPeriod.HighPart = -1;
|
|
delayPeriod.LowPart = 100l * 1000 * (-10);
|
|
|
|
KeDelayExecutionThread(
|
|
KernelMode,
|
|
FALSE,
|
|
&delayPeriod
|
|
);
|
|
|
|
// We simulate a callback now that triggers the card supervision
|
|
Lit220SerialEventCallback(
|
|
SmartcardExtension->OsData->DeviceObject,
|
|
SmartcardExtension->ReaderExtension->CardStatus.Irp,
|
|
SmartcardExtension
|
|
);
|
|
|
|
status = STATUS_SUCCESS;
|
|
|
|
}
|
|
}
|
|
finally {
|
|
|
|
if (status != STATUS_SUCCESS) {
|
|
SmartcardDebug(
|
|
DEBUG_ERROR,
|
|
("%s(Lit220InitializeInputFilter): Initialization failed - stauts %X\n",
|
|
DRIVER_NAME,
|
|
status)
|
|
);
|
|
|
|
// Clear the WaitMask since we did not get the call out that does the wait
|
|
SmartcardExtension->ReaderExtension->SerialConfigData.WaitMask =
|
|
0;
|
|
}
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
NTSTATUS
|
|
Lit220SystemControl(
|
|
IN PDEVICE_OBJECT DeviceObject,
|
|
IN PIRP Irp
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Arguments:
|
|
|
|
DeviceObject - Pointer to device object for this miniport
|
|
Irp - IRP involved.
|
|
|
|
Return Value:
|
|
|
|
STATUS_SUCCESS.
|
|
|
|
--*/
|
|
{
|
|
|
|
PDEVICE_EXTENSION DeviceExtension;
|
|
PSMARTCARD_EXTENSION SmartcardExtension;
|
|
PREADER_EXTENSION ReaderExtension;
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
|
|
DeviceExtension = DeviceObject->DeviceExtension;
|
|
SmartcardExtension = &DeviceExtension->SmartcardExtension;
|
|
ReaderExtension = SmartcardExtension->ReaderExtension;
|
|
|
|
IoSkipCurrentIrpStackLocation(Irp);
|
|
status = IoCallDriver(ReaderExtension->BusDeviceObject, Irp);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
|
NTSTATUS
|
|
Lit220DeviceControl(
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PIRP Irp
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This is the main entry point for the PCSC resource manager.
|
|
We pass all commands to the smartcard libary and let the smartcard
|
|
library call us directly when needed (If device is ready to receive
|
|
calls).
|
|
If the device is not ready we will hold the IRP until we get a signal
|
|
that it is safe to send IRPs again.
|
|
If the device is removed we return an error instead of calling the
|
|
smartcard library.
|
|
|
|
Arguments:
|
|
|
|
|
|
Return Value:
|
|
|
|
NTSTATUS
|
|
|
|
--*/
|
|
{
|
|
PDEVICE_EXTENSION deviceExtension = DeviceObject->DeviceExtension;
|
|
PSMARTCARD_EXTENSION smartcardExtension = &deviceExtension->SmartcardExtension;
|
|
PREADER_EXTENSION ReaderExtension = smartcardExtension->ReaderExtension;
|
|
NTSTATUS status;
|
|
KIRQL irql;
|
|
|
|
SmartcardDebug(
|
|
DEBUG_DRIVER,
|
|
("%s(Lit220DeviceControl): Enter DeviceObject %X, Irp %X\n",
|
|
DRIVER_NAME,
|
|
DeviceObject,
|
|
Irp)
|
|
);
|
|
|
|
if (smartcardExtension->ReaderExtension->SerialConfigData.WaitMask == 0) {
|
|
|
|
//
|
|
// the wait mask is set to 0 whenever the device was either
|
|
// surprise-removed or politely removed
|
|
//
|
|
status = STATUS_DEVICE_REMOVED;
|
|
}
|
|
|
|
// Increment the IRP count
|
|
KeAcquireSpinLock(&deviceExtension->SpinLock, &irql);
|
|
if (deviceExtension->IoCount == 0) {
|
|
|
|
KeReleaseSpinLock(&deviceExtension->SpinLock, irql);
|
|
status = KeWaitForSingleObject(
|
|
&deviceExtension->ReaderStarted,
|
|
Executive,
|
|
KernelMode,
|
|
FALSE,
|
|
NULL
|
|
);
|
|
ASSERT(status == STATUS_SUCCESS);
|
|
|
|
KeAcquireSpinLock(&deviceExtension->SpinLock, &irql);
|
|
}
|
|
ASSERT(deviceExtension->IoCount >= 0);
|
|
deviceExtension->IoCount++;
|
|
KeReleaseSpinLock(&deviceExtension->SpinLock, irql);
|
|
|
|
status = SmartcardAcquireRemoveLockWithTag(
|
|
smartcardExtension,
|
|
'tcoI');
|
|
|
|
if ((status != STATUS_SUCCESS) || (ReaderExtension->DeviceRemoved)) {
|
|
|
|
// the device has been removed. Fail the call
|
|
Irp->IoStatus.Information = 0;
|
|
Irp->IoStatus.Status = STATUS_DEVICE_REMOVED;
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
SmartcardReleaseRemoveLockWithTag(
|
|
smartcardExtension,
|
|
'tcoI');
|
|
|
|
return STATUS_DEVICE_REMOVED;
|
|
}
|
|
|
|
ASSERT(deviceExtension->SmartcardExtension.ReaderExtension->ReaderPowerState ==
|
|
PowerReaderWorking);
|
|
|
|
//
|
|
// We are in the common situation where we send the IRP
|
|
// to the smartcard lib to handle it.
|
|
//
|
|
status = SmartcardDeviceControl(
|
|
&(deviceExtension->SmartcardExtension),
|
|
Irp
|
|
);
|
|
|
|
SmartcardReleaseRemoveLockWithTag(
|
|
smartcardExtension,
|
|
'tcoI');
|
|
|
|
// Decrement the IRP count
|
|
KeAcquireSpinLock(&deviceExtension->SpinLock, &irql);
|
|
deviceExtension->IoCount--;
|
|
ASSERT(deviceExtension->IoCount >= 0);
|
|
KeReleaseSpinLock(&deviceExtension->SpinLock, irql);
|
|
|
|
SmartcardDebug(
|
|
DEBUG_TRACE,
|
|
("%s!Lit220DeviceControl: Exit %X\n",
|
|
DRIVER_NAME, status)
|
|
);
|
|
return status;
|
|
}
|
|
|
|
|
|
|
|
NTSTATUS
|
|
Lit220GetReaderError(
|
|
PSMARTCARD_EXTENSION SmartcardExtension
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine checks the status of the previous error to determine the
|
|
correct error code to return.
|
|
The default error is timeout if we cannot determine the error from the
|
|
reader.
|
|
|
|
--*/
|
|
{
|
|
static ULONG PreventReentry = FALSE;
|
|
PSMARTCARD_REQUEST smartcardRequest = &SmartcardExtension->SmartcardRequest;
|
|
NTSTATUS status = STATUS_TIMEOUT;
|
|
LARGE_INTEGER WaitTime;
|
|
KIRQL irql;
|
|
|
|
|
|
// Sometimes after a command the reader is not reader to accept another command
|
|
// so we need to wait for a short period of time for the reader to be ready. We need to
|
|
// take this out as soon as the reader is fixed!
|
|
|
|
WaitTime.HighPart = -1;
|
|
WaitTime.LowPart = -10 * 1000 * 1000; // Wait 1S for reader to recover from error.
|
|
|
|
KeDelayExecutionThread(
|
|
KernelMode,
|
|
FALSE,
|
|
&WaitTime
|
|
);
|
|
|
|
// Prevent a nack from this call from recursively calling itself
|
|
if (InterlockedExchange(
|
|
&PreventReentry,
|
|
TRUE))
|
|
{
|
|
// Default error to timeout if reader keeps failing our calls
|
|
return STATUS_TIMEOUT;
|
|
}
|
|
|
|
SmartcardDebug(
|
|
DEBUG_TRACE,
|
|
("%s!Lit220GetReaderError: Enter\n",
|
|
DRIVER_NAME)
|
|
);
|
|
|
|
smartcardRequest->BufferLength = 0;
|
|
|
|
//
|
|
// Send a get reader status to see if a card is inserted
|
|
//
|
|
smartcardRequest->Buffer[smartcardRequest->BufferLength++] =
|
|
LIT220_READER_ATTENTION;
|
|
smartcardRequest->Buffer[smartcardRequest->BufferLength++] =
|
|
LIT220_READER_ATTENTION;
|
|
smartcardRequest->Buffer[smartcardRequest->BufferLength++] =
|
|
LIT220_GET_READER_STATUS;
|
|
|
|
//
|
|
// We Expect to get a response
|
|
//
|
|
SmartcardExtension->ReaderExtension->WaitMask |= WAIT_DATA;
|
|
|
|
// Send the command
|
|
status = Lit220Command(
|
|
SmartcardExtension
|
|
);
|
|
|
|
if (status == STATUS_SUCCESS) {
|
|
// Check if length is correct
|
|
if (SmartcardExtension->SmartcardReply.BufferLength != LIT220_READER_STATUS_LEN) {
|
|
// Return a status timeout because the reader failed to respond
|
|
status = STATUS_TIMEOUT;
|
|
}
|
|
|
|
if (status == STATUS_SUCCESS) {
|
|
// Check the error byte to see if there was a protocol error
|
|
// otherwise assume timeout
|
|
if (SmartcardExtension->SmartcardReply.Buffer[1] & 0x04) {
|
|
status = STATUS_TIMEOUT;
|
|
} else {
|
|
status = STATUS_DEVICE_PROTOCOL_ERROR;
|
|
}
|
|
|
|
// Check status byte to see if card is inserted
|
|
// and send a notification accordingly
|
|
if (SmartcardExtension->SmartcardReply.Buffer[0] & LIT220_STATUS_CARD_INSERTED) {
|
|
Lit220NotifyCardChange(
|
|
SmartcardExtension,
|
|
TRUE
|
|
);
|
|
|
|
} else {
|
|
Lit220NotifyCardChange(
|
|
SmartcardExtension,
|
|
FALSE
|
|
);
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
InterlockedExchange(
|
|
&PreventReentry,
|
|
FALSE);
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|