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DeviceMonitor.cpp
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DeviceMonitor.cpp
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/*
* PKCS#11 library for .Net smart cards
* Copyright (C) 2007-2009 Gemalto <[email protected]>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <memory>
#include <boost/foreach.hpp>
#include <boost/mem_fn.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#include <vector>
#include <string>
#include "Log.hpp"
#include "DeviceMonitor.hpp"
#ifdef MACOSX_LEOPARD
#define SCardIsValidContext(x) SCARD_S_SUCCESS
#endif
extern boost::mutex io_mutex;
extern boost::condition_variable g_WaitForSlotEventCondition;
extern boost::mutex g_WaitForSlotEventMutex;
extern bool g_bWaitForSlotEvent;
const BYTE g_DotNetSmartCardAtr[ ] = { 0x3b, 0x16, 0x96, 0x41, 0x73, 0x74, 0x72, 0x69, 0x64 };
SCARDCONTEXT DeviceMonitor::m_hContext = 0;
bool DeviceMonitor::m_bStopPolling = false;
bool DeviceMonitor::m_bAlive = false;
boost::condition_variable g_WaitForDeviceMonitorThreadCondition;
boost::mutex g_WaitForDeviceMonitorThreadMutex;
extern bool g_bDllUnloading;
/*
*/
DeviceMonitor::DeviceMonitor( ) {
m_stEmptyDevice = "empty";
unsigned char ucDeviceID = 0;
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
SCARD_READERSTATE s;
memset( &s, 0, sizeof( SCARD_READERSTATE ) );
s.szReader = m_stEmptyDevice.c_str( );
s.dwCurrentState = SCARD_STATE_EMPTY;
s.dwEventState = SCARD_STATE_EMPTY;
d.reset( new Device( s, ucDeviceID ) );
++ucDeviceID;
}
}
/* Spy reader insertion/removal
*/
void DeviceMonitor::getDevicesStates( const SCARDCONTEXT& h ) {
long rv = SCardIsValidContext( h );
if( SCARD_S_SUCCESS != rv ) {
return;
}
// Get the name of all the connected devices
std::vector< std::string > vDevices;
vDevices.reserve( g_iMaxReader );
vDevices.clear( );
getDevicesList( h, vDevices );
// Build an SCARD_READERSTATE array for all seen devices
SCARD_READERSTATE aReaderStates[ g_iMaxReader ];
memset( aReaderStates, 0, sizeof( aReaderStates ) );
unsigned char j = 0;
size_t m = vDevices.size( );
BOOST_FOREACH( SCARD_READERSTATE &scr, aReaderStates ) {
memset( &scr, 0, sizeof( SCARD_READERSTATE ) );
if( j < m ) {
aReaderStates[ j ].szReader = vDevices.at( j ).c_str( );
++j;
} else {
break;
}
}
// Query the status for all known devices
rv = SCardGetStatusChange( h, 100, &aReaderStates[ 0 ], j );
if( SCARD_S_SUCCESS != rv ) {
Log::log( "DeviceMonitor::getDevicesStates - SCardGetStatusChange <%#02x>", rv );
}
// Create inner device objects
j = 0;
BOOST_FOREACH( SCARD_READERSTATE &scr, aReaderStates ) {
// If he reader exists
if( scr.szReader ) {
scr.dwCurrentState = scr.dwEventState & (~SCARD_STATE_CHANGED);
addReader( scr, j );
}
++j;
}
}
/*
*/
void DeviceMonitor::getDevicesList( const SCARDCONTEXT& h, std::vector< std::string >& a_DeviceList ) {
long rv = SCardIsValidContext( h );
if( SCARD_S_SUCCESS != rv ) {
return;
}
a_DeviceList.clear( );
// Get the device list from the PCSC layer
//LPSTR pszReaders = NULL;
if ( m_bStopPolling ) {
// If the library has been unloaded the thread must stopped right now
return;
}
/*
#ifdef SCARD_AUTOALLOCATE
DWORD dwReaders = SCARD_AUTOALLOCATE;
LONG rv = SCardListReaders( h, NULL, (LPSTR)&pszReaders, &dwReaders );
if( SCARD_S_SUCCESS != rv )
{
Log::log( "DeviceMonitor::getDevicesList - SCardListReaders <%#02x>", rv );
SCardFreeMemory( h, pszReaders );
if( ( SCARD_W_REMOVED_CARD == rv ) || ( SCARD_W_RESET_CARD == rv ) ) {
DWORD dwActiveProtocol = 0;
rv = SCardReconnect( h, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0, SCARD_LEAVE_CARD, &dwActiveProtocol );
if( SCARD_S_SUCCESS != rv ) {
Log::log( "DeviceMonitor::getDevicesList - SCardReconnect <%#02x>", rv );
return;
}
rv = SCardListReaders( h, NULL, (LPSTR)&pszReaders, &dwReaders );
if( SCARD_S_SUCCESS != rv ) {
Log::log( "DeviceMonitor::getDevicesList - SCardListReaders (2) <%#02x>", rv );
SCardFreeMemory( h, pszReaders );
return;
}
} else {
return;
}
}
#else
*/
DWORD dwReaders = 0;
rv = SCardListReaders( h, NULL, NULL, &dwReaders );
if( SCARD_S_SUCCESS != rv ) {
return;
}
std::auto_ptr< char > pszReaders( new char[ dwReaders ] );
memset( pszReaders.get( ), 0, dwReaders );
//pszReaders = (char *)malloc(dwReaders);
rv = SCardListReaders( h, NULL, pszReaders.get( ), &dwReaders);
//#endif
// Construct the PCSC device list
LPSTR pReader = pszReaders.get( );
while( pReader && ( '\0' != *pReader ) )
{
std::string s( pReader );
std::vector< std::string >::iterator i = a_DeviceList.begin( );
a_DeviceList.insert( i, s );
// Advance to the next value
size_t readerNameLen = s.length( );
pReader = ( pReader + readerNameLen + 1 );
}
//#ifdef SCARD_AUTOALLOCATE
// SCardFreeMemory( h, pszReaders );
//#else
//free(pszReaders);
//#endif
}
/*
*/
void DeviceMonitor::getReader( SCARD_READERSTATE& scr ) {
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
if( d.get( ) && ( 0 == d->getReaderName( ).compare( scr.szReader ) ) ) {
//Log::log( " ===> Update reader <%s>\n", scr.szReader );
d->put( scr );
return;
}
}
}
/*
*/
void DeviceMonitor::updateReader( const SCARD_READERSTATE& scr ) {
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
if( d.get( ) && ( 0 == d->getReaderName( ).compare( scr.szReader ) ) ) {
//Log::log( " ===> Update reader <%s>\n", scr.szReader );
d->update( scr );
return;
}
}
}
/*
*/
void DeviceMonitor::removeReader( LPCSTR s ) {
unsigned char ucDeviceID = 0;
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
if( d.get( ) && ( 0 == d->getReaderName( ).compare( s ) ) ) {
Log::log( "DeviceMonitor::removeReader - <%s> - id <%d>", s, ucDeviceID );
SCARD_READERSTATE s;
memset( &s, 0, sizeof( SCARD_READERSTATE ) );
s.szReader = m_stEmptyDevice.c_str( );
s.dwCurrentState = SCARD_STATE_EMPTY;
s.dwEventState = SCARD_STATE_EMPTY;
d.reset( new Device( s, ucDeviceID ) );
return;
}
++ucDeviceID;
}
}
/*
*/
void DeviceMonitor::addReader( const SCARDCONTEXT& h, const std::string& a_stDeviceName ) {
// Query the status of the device
SCARD_READERSTATE scr;
memset( &scr, 0, sizeof( SCARD_READERSTATE ) );
scr.szReader = a_stDeviceName.c_str( );
if( h ) {
LONG rv = SCardGetStatusChange( h, 100, &scr, 1 );
if( SCARD_S_SUCCESS != rv ) {
Log::log( "DeviceMonitor::addReader - SCardGetStatusChange <%#02x>", rv );
}
if( ( SCARD_W_REMOVED_CARD == rv ) || ( SCARD_W_RESET_CARD == rv ) ) {
DWORD dwActiveProtocol = 0;
rv = SCardReconnect( h, SCARD_SHARE_SHARED, SCARD_PROTOCOL_T0, SCARD_LEAVE_CARD, &dwActiveProtocol );
if( SCARD_S_SUCCESS != rv ) {
Log::log( "DeviceMonitor::addReader - SCardReconnect <%#02x>", rv );
return;
}
SCardGetStatusChange( h, 100, &scr, 1 );
}
}
scr.dwCurrentState = scr.dwEventState;
unsigned char ucDeviceID = 0;
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
if( d.get( ) && ( 0 == d->getReaderName( ).compare( m_stEmptyDevice ) ) ) {
Log::log( "DeviceMonitor::addReader - <%s> - id <%d>", a_stDeviceName.c_str( ), ucDeviceID );
d.reset( new Device( scr, ucDeviceID ) );
/*if( SCARD_STATE_PRESENT & scr.dwEventState ) {
d->addMiniDriver( );
}*/
break;
}
++ucDeviceID;
}
}
/*
*/
void DeviceMonitor::addReader( const SCARD_READERSTATE& a_State, const unsigned char& a_ucDeviceID ) {
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
if( d.get( ) && ( 0 == d->getReaderName( ).compare( m_stEmptyDevice ) ) ) {
Log::log( "DeviceMonitor::addReader - <%s> - id <%d>", a_State.szReader, a_ucDeviceID );
d.reset( new Device( a_State, a_ucDeviceID ) );
return;
}
}
}
/*
*/
void DeviceMonitor::removeSmartCard( const std::string& a_stReaderName ) {
unsigned char ucDeviceID = 0;
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
if( d.get( ) && ( 0 == d->getReaderName( ).compare( a_stReaderName ) ) ) {
Log::log( "DeviceMonitor::removeSmartCard - <%s> - id <%d>", a_stReaderName.c_str( ), ucDeviceID );
// Remove the MiniDriver dedicated to this smart card
d->removeMiniDriver( );
// Initialize the state of the device to monitor
SCARD_READERSTATE s;
memset( &s, 0, sizeof( SCARD_READERSTATE ) );
s.szReader = d->getReaderName( ).c_str( );
s.dwCurrentState = SCARD_STATE_EMPTY;
s.dwEventState = SCARD_STATE_EMPTY;
d->update( s );
return;
}
++ucDeviceID;
}
}
/*
*/
void DeviceMonitor::addSmartCard( const std::string& a_stReaderName ) {
unsigned char ucDeviceID = 0;
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
if( d.get( ) && ( 0 == d->getReaderName( ).compare( a_stReaderName ) ) ) {
Log::log( "DeviceMonitor::addSmartCard - <%s> - id <%d>", a_stReaderName.c_str( ), ucDeviceID );
//try {
d->addMiniDriver( );
//} catch( ... ) {
// If the smart card is removed during the read operation
// If the smart card is not a .NET smart card
// then an exception is thrown
//}
return;
}
++ucDeviceID;
}
}
/*
*/
bool DeviceMonitor::isReaderExists( const SCARDCONTEXT& h, const std::string& a_stReaderName ) {
std::vector< std::string > deviceList;
getDevicesList( h, deviceList );
BOOST_FOREACH( const std::string& s, deviceList ) {
if( 0 == s.compare( a_stReaderName ) ) {
Log::log( "DeviceMonitor::isReaderExists - Reader <%s> exists", a_stReaderName.c_str( ) );
return true;
}
}
return false;
/*
SCARD_READERSTATE scr;
memset( &scr, 0, sizeof( SCARD_READERSTATE ) );
scr.szReader = a_stReaderName.c_str( );
LONG rv = SCardGetStatusChange( h, 100, &scr, 1 );
Log::log( "DeviceMonitor::isReaderExists - Current state <%#02x>", scr.dwCurrentState );
Log::log( "DeviceMonitor::isReaderExists - Event state <%#02x>", scr.dwEventState );
if( SCARD_S_SUCCESS != rv ) { // Expect for 0x8010002E Cannot find a smart card reader
Log::log( "DeviceMonitor::isReaderExists - SCardGetStatusChange <%#02x>", rv );
return false;
}
return true;
*/
}
/*
*/
void DeviceMonitor::unblockWaitingThread( void ) {
if( ! g_bWaitForSlotEvent ) {
boost::lock_guard< boost::mutex > lock( g_WaitForSlotEventMutex );
g_bWaitForSlotEvent = true;
}
g_WaitForSlotEventCondition.notify_all( );
}
/*
*/
void DeviceMonitor::notifyListenerReaderInserted( const std::string& a_stReaderName ) {
if( m_bStopPolling ) {
return;
}
// Update the states of the listeners
BOOST_FOREACH( IDeviceMonitorListener* const d, m_Listeners ) {
if( d ) {
d->notifyReaderInserted( a_stReaderName );
}
}
// Give access to the state
unblockWaitingThread( );
}
/*
*/
void DeviceMonitor::notifyListenerReaderRemoved( const std::string& a_stReaderName ) {
if( m_bStopPolling ) {
return;
}
BOOST_FOREACH( IDeviceMonitorListener* const d, m_Listeners ) {
if( d ) {
d->notifyReaderRemoved( a_stReaderName );
}
}
unblockWaitingThread( );
}
/*
*/
void DeviceMonitor::notifyListenerSmartCardInserted( const std::string& a_stReaderName ) {
if( m_bStopPolling ) {
return;
}
BOOST_FOREACH( IDeviceMonitorListener* const d, m_Listeners ) {
if( d ) {
d->notifySmartCardInserted( a_stReaderName );
}
}
unblockWaitingThread( );
}
/*
*/
void DeviceMonitor::notifyListenerSmartCardRemoved( const std::string& a_stReaderName ) {
if( m_bStopPolling ) {
return;
}
BOOST_FOREACH( IDeviceMonitorListener* const d, m_Listeners ) {
if( d ) {
d->notifySmartCardRemoved( a_stReaderName );
}
}
unblockWaitingThread( );
}
/*
*/
void DeviceMonitor::notifyListenerSmartCardChanged( const std::string& a_stReaderName ) {
if( m_bStopPolling ) {
return;
}
BOOST_FOREACH( IDeviceMonitorListener* const d, m_Listeners ) {
if( d ) {
d->notifySmartCardChanged( a_stReaderName );
}
}
unblockWaitingThread( );
}
/*
*/
void DeviceMonitor::addListener( IDeviceMonitorListener* const a_pListener ) {
if( a_pListener ) {
m_Listeners.insert( m_Listeners.begin( ), a_pListener );
}
}
/*
*/
void DeviceMonitor::printDeviceList( void ) {
//Log::log( "\n=============== DEVICES" );
int i = 0;
BOOST_FOREACH( boost::shared_ptr< Device > scr, m_aDevices ) {
if( scr.get( ) ) {
printReaderState( scr->getReaderState( ), i );
}
++i;
}
//Log::log( "=============== DEVICES\n" );
}
/*
*/
void DeviceMonitor::printReaderStateList( boost::array< SCARD_READERSTATE, g_iMaxReader + 1 >& l ) {
int i = 0;
BOOST_FOREACH( SCARD_READERSTATE &scr, l ) {
printReaderState( scr, i );
++i;
}
}
/*
*/
void DeviceMonitor::printReaderState( const SCARD_READERSTATE& scrs, const int& iIndex ) {
if( !Log::s_bEnableLog || !scrs.szReader ) {
return;
}
std::string stStateCurrent;
getState( scrs.dwCurrentState, stStateCurrent );
std::string stStateEvent;
getState( scrs.dwEventState, stStateEvent );
std::string stATR;
Log::toString( scrs.rgbAtr, scrs.cbAtr, stATR );
Log::log( "Index <%d> - szReader <%s> - dwCurrentState <%#02x> (%s) - dwEventState <%#02x> (%s) - cbAtr <%#02x> - rgbAtr <%s>", iIndex, scrs.szReader, scrs.dwCurrentState, stStateCurrent.c_str( ), scrs.dwEventState, stStateEvent.c_str( ), scrs.cbAtr, stATR.c_str( ) );
}
/*
*/
void DeviceMonitor::getState( const DWORD& dwState, std::string& stState ) {
// The application requested that this reader be ignored. No other bits will be set.
if( SCARD_STATE_IGNORE == ( SCARD_STATE_IGNORE & dwState ) ) {
stState += "SCARD_STATE_IGNORE ";
}
// This implies that there is a difference between the state believed by the application, and
// the state known by the Service Manager. When this bit is set, the application may assume a
// significant state change has occurred on this reader.
if( SCARD_STATE_CHANGED == ( SCARD_STATE_CHANGED & dwState ) ) {
stState += "SCARD_STATE_CHANGED ";
}
// This implies that the given reader name is not recognized by the Service Manager. If this bit
// is set, then SCARD_STATE_CHANGED and SCARD_STATE_IGNORE will also be set.
if( SCARD_STATE_UNKNOWN == ( SCARD_STATE_UNKNOWN & dwState ) ) {
stState += "SCARD_STATE_UNKNOWN ";
}
// This implies that the actual state of this reader is not available. If this bit is set,
// then all the following bits are clear.
if( SCARD_STATE_UNAVAILABLE == ( SCARD_STATE_UNAVAILABLE & dwState ) ) {
stState += "SCARD_STATE_UNAVAILABLE ";
}
// This implies that there is not card in the reader. If this bit is set, all the following bits will be clear.
if( SCARD_STATE_EMPTY == ( SCARD_STATE_EMPTY & dwState ) ) {
stState += "SCARD_STATE_EMPTY ";
}
// This implies that there is a card in the reader.
if( SCARD_STATE_PRESENT == ( SCARD_STATE_PRESENT & dwState ) ) {
stState += "SCARD_STATE_PRESENT ";
}
// This implies that there is a card in the reader with an ATR matching one of the target cards.
// If this bit is set, SCARD_STATE_PRESENT will also be set. This bit is only returned on the SCardLocateCard() service.
if( SCARD_STATE_ATRMATCH == ( SCARD_STATE_ATRMATCH & dwState ) ) {
stState += "SCARD_STATE_ATRMATCH ";
}
// This implies that the card in the reader is allocated for exclusive use by another application.
// If this bit is set, SCARD_STATE_PRESENT will also be set.
if( SCARD_STATE_EXCLUSIVE == ( SCARD_STATE_EXCLUSIVE & dwState ) ) {
stState += "SCARD_STATE_EXCLUSIVE ";
}
// This implies that the card in the reader is in use by one or more other applications, but may be
// connected to in shared mode. If this bit is set, SCARD_STATE_PRESENT will also be set.
if( SCARD_STATE_INUSE == ( SCARD_STATE_INUSE & dwState ) ) {
stState += "SCARD_STATE_INUSE ";
}
// This implies that the card in the reader is unresponsive or not supported by the reader or software.
if( SCARD_STATE_MUTE == ( SCARD_STATE_MUTE & dwState ) ) {
stState += "SCARD_STATE_MUTE ";
}
// This implies that the card in the reader has not been powered up.
if( SCARD_STATE_UNPOWERED == ( SCARD_STATE_UNPOWERED & dwState ) ) {
stState += "SCARD_STATE_UNPOWERED ";
}
// The application is unaware of the current state, and would like to know. The use of this value
// results in an immediate return from state transition monitoring services. This is represented by
// all bits set to zero.
if( stState.empty( ) && ( SCARD_STATE_UNAWARE == ( SCARD_STATE_UNAWARE & dwState ) ) ) {
stState += "SCARD_STATE_UNAWARE ";
}
}
/*
*/
void DeviceMonitor::start( void ) {
// Initialize the PCSC context
long hResult = SCardEstablishContext( SCARD_SCOPE_USER, NULL, NULL, &m_hContext );
if( SCARD_S_SUCCESS != hResult ) {
Log::log( "DeviceMonitor::start - SCardEstablishContext failed with error 0x%.8X" , hResult);
//throw std::exception( );
//return;
}
// Establish the list of the connected devices
getDevicesStates( m_hContext );
m_bStopPolling = false;
DeviceMonitor::m_bAlive = false;
m_ThreadListener.reset( new boost::thread( &DeviceMonitor::monitorReaderEvent, this ) );
Log::log( "DeviceMonitor::start - Wait for thread starting..." );
Timer t;
t.start( );
/*
==========
unsigned int i = 0;
do {
boost::this_thread::sleep( boost::posix_time::milliseconds( 100 ) );
i += 100;
Log::log( "DeviceMonitor::start - DeviceMonitor::m_bAlive <%d> - i <%ld>", DeviceMonitor::m_bAlive, i );
} while( ( false == DeviceMonitor::m_bAlive ) && ( i < 1000 ) );
============
*/
{
boost::mutex::scoped_lock lock( g_WaitForDeviceMonitorThreadMutex );
while( !DeviceMonitor::m_bAlive ) {
g_WaitForDeviceMonitorThreadCondition.wait( lock );
}
}
//g_WaitForDeviceMonitorThreadCondition.timed_wait( lock, boost::posix_time::milliseconds( 1000 ) );
t.stop( "DeviceMonitor::start - Thread started" );
}
/*
*/
void DeviceMonitor::stop( void ) {
Log::begin( "DeviceMonitor::stop" );
//unblockWaitingThread( );
g_WaitForSlotEventCondition.notify_all( );
if (DeviceMonitor::m_bAlive)
{
Log::log( "DeviceMonitor::stop - Wait for event thread unblocked" );
if (m_hContext)
{
LONG rv = SCardCancel( m_hContext );
Log::log( "DeviceMonitor::stop - SCardCancel <%#02x>", rv );
}
m_bStopPolling = true;
//Log::log( "DeviceMonitor::stop - m_bStopPolling <%#02x>", m_bStopPolling );
Log::log( "DeviceMonitor::stop - bAlive <%#02x>", DeviceMonitor::m_bAlive );
if( DeviceMonitor::m_bAlive ) {
if (g_bDllUnloading)
{
Log::log( "DeviceMonitor::stop - Library unloading, not waiting!!" );
}
else
{
Log::log( "DeviceMonitor::stop - Waiting the thread stops..." );
Timer t;
t.start( );
unsigned int i = 0;
do {
boost::this_thread::sleep( boost::posix_time::milliseconds( 100 ) );
Log::log( "DeviceMonitor::stop - DeviceMonitor::m_bAlive <%d> - i <%ld>", DeviceMonitor::m_bAlive, i );
i+= 100;
} while( DeviceMonitor::m_bAlive && ( i < 2000 ) );
t.stop( "DeviceMonitor::stop - Thread stopped" );
}
}
}
else
{
Log::log( "DeviceMonitor::stop - thread already stopped" );
}
Log::end( "DeviceMonitor::stop" );
}
/* Spy reader insertion/removal
*/
void DeviceMonitor::monitorReaderEvent( void ) {
Log::log( "[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[ DEVICE MONITOR THREAD STARTS ]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]\n" );
// Unblock all mutex waiting for the device monitor thread start
{
boost::mutex::scoped_lock lock( g_WaitForDeviceMonitorThreadMutex );
DeviceMonitor::m_bAlive = true;
}
g_WaitForDeviceMonitorThreadCondition.notify_all( );
if( DeviceMonitor::m_bStopPolling ) {
Log::log( "DeviceMonitor::monitorReaderEvent - Stop thread at begining " );
DeviceMonitor::m_bAlive = false;
return;
}
try {
std::string PNP_NOTIFICATION( "\\\\?PnP?\\Notification" );
std::vector< std::string > vDevices;
vDevices.reserve( g_iMaxReader );
vDevices.clear( );
// Build the smart card reader states buffer. Reserve the first cell to Plug&Play notification declaration
SCARD_READERSTATE aReaderStates[ g_iMaxReader + 1 ];
memset( &aReaderStates[ 0 ], 0, sizeof( aReaderStates ) );
aReaderStates[ 0 ].szReader = PNP_NOTIFICATION.c_str( );
DWORD dwReaderStatesCount = 1;
BOOST_FOREACH( boost::shared_ptr< Device >& d, m_aDevices ) {
// Ignore empty device cell
if( d.get( ) && d->getReaderName( ).compare( m_stEmptyDevice ) ) {
d->put( aReaderStates[ dwReaderStatesCount ] );
++dwReaderStatesCount;
}
}
size_t uiReaderStatesLen = sizeof( aReaderStates ) / sizeof( SCARD_READERSTATE );
// Start to spy the readers states
do {
Log::log( "DeviceMonitor::monitorReaderEvent - Start polling" );
if ( DeviceMonitor::m_bStopPolling ) {
Log::log( "DeviceMonitor::monitorReaderEvent - Stop polling required before status request" );
break;
}
long rv;
if (!DeviceMonitor::m_hContext)
{
Log::log( "DeviceMonitor::monitorReaderEvent - waiting for PC/SC to start" );
// Initialize the PCSC context
LONG hResult;
do {
hResult = SCardEstablishContext( SCARD_SCOPE_USER, NULL, NULL, &DeviceMonitor::m_hContext );
if (hResult != SCARD_S_SUCCESS)
#ifdef WIN32
Sleep(500);
#else
usleep(500*1000);
#endif
else
{
Log::log( "DeviceMonitor::monitorReaderEvent - PCSC started" );
vDevices.clear( );
memset( &aReaderStates[ 0 ], 0, sizeof( aReaderStates ) );
aReaderStates[ 0 ].szReader = PNP_NOTIFICATION.c_str( );
aReaderStates[ 0 ].dwEventState = SCARD_STATE_CHANGED;
dwReaderStatesCount = 1;
break;
}
} while (!DeviceMonitor::m_bStopPolling);
if (g_bDllUnloading)
return;
rv = SCARD_S_SUCCESS;
}
else
{