Source code of Windows XP (NT5)
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/**********************************************************************/
/** Microsoft Windows/NT **/
/** Copyright(c) Microsoft Corporation, 1997 - 1999 **/
/**********************************************************************/
/*
general.cpp
General classes for the DHCP snapin
FILE HISTORY:
*/
#include "stdafx.h"
#include "options.h"
#include "nodes.h"
const TCHAR g_szDefaultHelpTopic[] = _T("\\help\\dhcpconcepts.chm::/sag_dhcptopnode.htm");
/////////////////////////////////////////////////////////////////////
//
// CTimerArray implementation
//
/////////////////////////////////////////////////////////////////////
CTimerMgr::CTimerMgr()
{
}
CTimerMgr::~CTimerMgr()
{
CTimerDesc * pTimerDesc;
for (INT_PTR i = GetUpperBound(); i >= 0; --i)
{
pTimerDesc = GetAt(i);
if (pTimerDesc->uTimer != 0)
FreeTimer(i);
delete pTimerDesc;
}
}
int
CTimerMgr::AllocateTimer
(
ITFSNode * pNode,
CDhcpServer * pServer,
UINT uTimerValue,
TIMERPROC TimerProc
)
{
CSingleLock slTimerMgr(&m_csTimerMgr);
// get a lock on the timer mgr for the scope of this
// function.
slTimerMgr.Lock();
CTimerDesc * pTimerDesc = NULL;
// look for an empty slot
for (INT_PTR i = GetUpperBound(); i >= 0; --i)
{
pTimerDesc = GetAt(i);
if (pTimerDesc->uTimer == 0)
break;
}
// did we find one? if not allocate one
if (i < 0)
{
pTimerDesc = new CTimerDesc;
Add(pTimerDesc);
i = GetUpperBound();
}
//
// fix null pointer dereference
//
if ( pTimerDesc == NULL )
{
return -1;
}
pTimerDesc->uTimer = SetTimer(NULL, (UINT) i, uTimerValue, TimerProc);
if (pTimerDesc->uTimer == 0)
return -1;
pTimerDesc->spNode.Set(pNode);
pTimerDesc->pServer = pServer;
pTimerDesc->timerProc = TimerProc;
return (int)i;
}
void
CTimerMgr::FreeTimer
(
UINT_PTR uEventId
)
{
CSingleLock slTimerMgr(&m_csTimerMgr);
// get a lock on the timer mgr for the scope of this
// function.
slTimerMgr.Lock();
CTimerDesc * pTimerDesc;
Assert(uEventId <= (UINT) GetUpperBound());
if (uEventId > (UINT) GetUpperBound())
return;
pTimerDesc = GetAt((int) uEventId);
::KillTimer(NULL, pTimerDesc->uTimer);
pTimerDesc->spNode.Release();
pTimerDesc->pServer = NULL;
pTimerDesc->uTimer = 0;
}
CTimerDesc *
CTimerMgr::GetTimerDesc
(
UINT_PTR uEventId
)
{
CSingleLock slTimerMgr(&m_csTimerMgr);
// the caller of this function should lock the timer mgr
// while accessing this pointer
CTimerDesc * pTimerDesc;
for (INT_PTR i = GetUpperBound(); i >= 0; --i)
{
pTimerDesc = GetAt(i);
if (pTimerDesc->uTimer == uEventId)
return pTimerDesc;
}
return NULL;
}
void
CTimerMgr::ChangeInterval
(
UINT_PTR uEventId,
UINT uNewInterval
)
{
CSingleLock slTimerMgr(&m_csTimerMgr);
// get a lock on the timer mgr for the scope of this
// function.
slTimerMgr.Lock();
Assert(uEventId <= (UINT) GetUpperBound());
if (uEventId > (UINT) GetUpperBound())
return;
CTimerDesc tempTimerDesc;
CTimerDesc * pTimerDesc;
pTimerDesc = GetAt((int) uEventId);
// kill the old timer
::KillTimer(NULL, pTimerDesc->uTimer);
// set a new one with the new interval
pTimerDesc->uTimer = ::SetTimer(NULL, (UINT) uEventId, uNewInterval, pTimerDesc->timerProc);
}
/////////////////////////////////////////////////////////////////////
//
// CDhcpClient implementation
//
/////////////////////////////////////////////////////////////////////
CDhcpClient::CDhcpClient
(
const DHCP_CLIENT_INFO * pdhcClientInfo
)
: m_bReservation( FALSE )
{
Assert(pdhcClientInfo);
InitializeData(pdhcClientInfo);
m_bClientType = CLIENT_TYPE_UNSPECIFIED;
}
CDhcpClient::CDhcpClient
(
const DHCP_CLIENT_INFO_V4 * pdhcClientInfo
)
: m_bReservation( FALSE )
{
Assert(pdhcClientInfo);
InitializeData(reinterpret_cast<const DHCP_CLIENT_INFO *>(pdhcClientInfo));
m_bClientType = pdhcClientInfo->bClientType;
}
void
CDhcpClient::InitializeData
(
const DHCP_CLIENT_INFO * pdhcClientInfo
)
{
DWORD err = 0;
CATCH_MEM_EXCEPTION
{
m_dhcpIpAddress = pdhcClientInfo->ClientIpAddress;
m_dhcpIpMask = pdhcClientInfo->SubnetMask;
m_dtExpires = pdhcClientInfo->ClientLeaseExpires;
if ( pdhcClientInfo->ClientName )
{
m_strName = pdhcClientInfo->ClientName;
}
if ( pdhcClientInfo->ClientComment )
{
m_strComment = pdhcClientInfo->ClientComment;
}
if ( pdhcClientInfo->OwnerHost.HostName )
{
m_strHostName = pdhcClientInfo->OwnerHost.HostName;
}
if ( pdhcClientInfo->OwnerHost.NetBiosName )
{
m_strHostNetbiosName = pdhcClientInfo->OwnerHost.NetBiosName;
}
//
// Convert the hardware addres
//
for ( DWORD i = 0 ; i < pdhcClientInfo->ClientHardwareAddress.DataLength ; i++ )
{
m_baHardwareAddress.SetAtGrow( i, pdhcClientInfo->ClientHardwareAddress.Data[i] ) ;
}
}
END_MEM_EXCEPTION( err ) ;
}
CDhcpClient::~CDhcpClient()
{
}
CDhcpClient::CDhcpClient()
: m_dhcpIpAddress( 0 ),
m_dhcpIpMask( 0 ),
m_dhcpIpHost( 0 ),
m_bReservation( FALSE )
{
m_dtExpires.dwLowDateTime = DHCP_DATE_TIME_ZERO_LOW ;
m_dtExpires.dwHighDateTime = DHCP_DATE_TIME_ZERO_HIGH ;
}
void
CDhcpClient::SetHardwareAddress
(
const CByteArray & caByte
)
{
INT_PTR cMax = caByte.GetSize();
m_baHardwareAddress.SetSize( cMax );
for ( int i = 0 ; i < cMax ; i++ )
{
m_baHardwareAddress.SetAt( i, caByte.GetAt( i ) );
}
}
/////////////////////////////////////////////////////////////////////
//
// CDhcpIpRange implementation
//
/////////////////////////////////////////////////////////////////////
CDhcpIpRange::CDhcpIpRange
(
DHCP_IP_RANGE dhcpIpRange
)
{
*this = dhcpIpRange;
m_RangeType = DhcpIpRanges;
}
CDhcpIpRange::CDhcpIpRange()
{
m_dhcpIpRange.StartAddress = DHCP_IP_ADDRESS_INVALID;
m_dhcpIpRange.EndAddress = DHCP_IP_ADDRESS_INVALID;
m_RangeType = DhcpIpRanges;
}
CDhcpIpRange::~CDhcpIpRange()
{
}
//
// Sort helper function
//
/*int
CDhcpIpRange::OrderByAddress
(
const CObjectPlus * pobIpRange
) const
{
const CDhcpIpRange * pipr = (CDhcpIpRange *) pobIpRange;
//
// Derive a comparison result for the end address
//
int iEndResult = QueryAddr( FALSE ) < QueryAddr( FALSE )
? -1
: QueryAddr( FALSE ) != QueryAddr( FALSE );
//
// Use start address as major sort key, end address as minor.
//
return QueryAddr( TRUE ) < pipr->QueryAddr( TRUE )
? -1
: ( QueryAddr( TRUE ) != pipr->QueryAddr( TRUE )
? 1
: iEndResult );
}
*/
CDhcpIpRange &
CDhcpIpRange::operator =
(
const DHCP_IP_RANGE dhcpIpRange
)
{
m_dhcpIpRange = dhcpIpRange;
return *this;
}
DHCP_IP_ADDRESS
CDhcpIpRange::SetAddr
(
DHCP_IP_ADDRESS dhcpIpAddress,
BOOL bStart
)
{
DHCP_IP_ADDRESS dhcpIpAddressOld;
if ( bStart )
{
dhcpIpAddressOld = m_dhcpIpRange.StartAddress;
m_dhcpIpRange.StartAddress = dhcpIpAddress;
}
else
{
dhcpIpAddressOld = m_dhcpIpRange.EndAddress;
m_dhcpIpRange.EndAddress = dhcpIpAddress;
}
return dhcpIpAddressOld;
}
BOOL
CDhcpIpRange::IsOverlap
(
DHCP_IP_RANGE dhcpIpRange
)
{
BOOL bOverlap = FALSE;
if (m_dhcpIpRange.StartAddress <= dhcpIpRange.StartAddress)
{
if (m_dhcpIpRange.StartAddress == dhcpIpRange.StartAddress)
{
bOverlap = TRUE;
}
else
if (m_dhcpIpRange.EndAddress >= dhcpIpRange.StartAddress)
{
bOverlap = TRUE;
}
}
else
if (m_dhcpIpRange.StartAddress <= dhcpIpRange.EndAddress)
{
bOverlap = TRUE;
}
return bOverlap;
}
//
// Return TRUE if this range is an improper subset of the given range.
//
BOOL
CDhcpIpRange::IsSubset
(
DHCP_IP_RANGE dhcpIpRange
)
{
return (dhcpIpRange.StartAddress <= m_dhcpIpRange.StartAddress) &&
(dhcpIpRange.EndAddress >= m_dhcpIpRange.EndAddress);
}
//
// Return TRUE if this range is an improper superset of the given range.
//
BOOL
CDhcpIpRange::IsSuperset
(
DHCP_IP_RANGE dhcpIpRange
)
{
return (dhcpIpRange.StartAddress >= m_dhcpIpRange.StartAddress) &&
(dhcpIpRange.EndAddress <= m_dhcpIpRange.EndAddress);
}
void
CDhcpIpRange::SetRangeType(UINT uRangeType)
{
m_RangeType = uRangeType;
}
UINT
CDhcpIpRange::GetRangeType()
{
return m_RangeType;
}
/////////////////////////////////////////////////////////////////////
//
// CDhcpOptionValue implementation
//
/////////////////////////////////////////////////////////////////////
CDhcpOptionValue::CDhcpOptionValue
(
DHCP_OPTION_DATA_TYPE dhcpOptionDataType,
INT cUpperBound
)
: m_dhcpOptionDataType( dhcpOptionDataType ),
m_nUpperBound( -1 ),
m_pdhcpOptionDataStruct(NULL)
{
m_dhcpOptionValue.pCObj = NULL;
LONG err = InitValue( dhcpOptionDataType, cUpperBound );
if ( err )
{
ASSERT(FALSE);
//ReportError( err );
}
}
//
// Copy constructor.
//
CDhcpOptionValue::CDhcpOptionValue
(
const CDhcpOptionValue & cOptionValue
)
: m_dhcpOptionDataType( DhcpByteOption ),
m_nUpperBound( -1 ),
m_pdhcpOptionDataStruct(NULL)
{
DWORD err = 0;
m_dhcpOptionValue.pCObj = NULL;
err = SetData(&cOptionValue);
if ( err )
{
ASSERT(FALSE);
//ReportError( err );
}
}
CDhcpOptionValue::CDhcpOptionValue
(
const CDhcpOptionValue * pdhcpValue
)
: m_dhcpOptionDataType( DhcpByteOption ),
m_nUpperBound( -1 ),
m_pdhcpOptionDataStruct(NULL)
{
LONG err = 0;
m_dhcpOptionValue.pCObj = NULL;
ASSERT( pdhcpValue != NULL );
err = SetData(pdhcpValue);
if (err)
{
ASSERT(FALSE);
//ReportError( err );
}
}
CDhcpOptionValue::CDhcpOptionValue
(
const DHCP_OPTION & dhpType
)
: m_dhcpOptionDataType( DhcpByteOption ),
m_nUpperBound( -1 ),
m_pdhcpOptionDataStruct(NULL)
{
LONG err = 0;
m_dhcpOptionValue.pCObj = NULL;
err = SetData((const LPDHCP_OPTION_DATA) &dhpType.DefaultValue);
if ( err )
{
ASSERT(FALSE);
//ReportError( err );
}
}
CDhcpOptionValue::CDhcpOptionValue
(
const DHCP_OPTION_VALUE & dhpOptionValue
)
: m_dhcpOptionDataType( DhcpByteOption ),
m_nUpperBound( -1 ),
m_pdhcpOptionDataStruct(NULL)
{
LONG err = 0;
m_dhcpOptionValue.pCObj = NULL;
err = SetData((const LPDHCP_OPTION_DATA) &dhpOptionValue.Value);
if ( err )
{
ASSERT(FALSE);
//ReportError( err );
}
}
CDhcpOptionValue::~ CDhcpOptionValue ()
{
FreeValue();
if (m_pdhcpOptionDataStruct)
FreeOptionDataStruct();
}
CDhcpOptionValue & CDhcpOptionValue::operator =
(
const CDhcpOptionValue & dhpValue
)
{
SetData(&dhpValue);
return *this;
}
BOOL
CDhcpOptionValue::SetDataType
(
DHCP_OPTION_DATA_TYPE dhcType,
INT cUpperBound
)
{
if ( dhcType > DhcpEncapsulatedDataOption )
{
return FALSE;
}
InitValue( dhcType, cUpperBound );
return TRUE;
}
void
CDhcpOptionValue::SetUpperBound
(
INT cNewBound
)
{
if (cNewBound <= 0)
cNewBound = 1;
if (m_dhcpOptionDataType != DhcpBinaryDataOption &&
m_dhcpOptionDataType != DhcpEncapsulatedDataOption)
{
m_nUpperBound = cNewBound;
}
switch ( m_dhcpOptionDataType )
{
case DhcpByteOption:
case DhcpWordOption:
case DhcpDWordOption:
case DhcpIpAddressOption:
m_dhcpOptionValue.paDword->SetSize( cNewBound );
break;
case DhcpStringDataOption:
m_dhcpOptionValue.paString->SetSize( cNewBound );
break;
case DhcpDWordDWordOption:
m_dhcpOptionValue.paDwordDword->SetSize( cNewBound );
break;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
m_dhcpOptionValue.paBinary->SetSize( cNewBound );
break;
default:
Trace0("CDhcpOptionValue: attempt to set upper bound on invalid value type");
ASSERT( FALSE );
break;
}
}
BOOL
CDhcpOptionValue::IsValid () const
{
return m_nUpperBound > 0;
}
void
CDhcpOptionValue::FreeValue ()
{
//
// If there's not a value, return now.
//
if ( m_dhcpOptionValue.pCObj == NULL || m_nUpperBound < 0 )
{
m_dhcpOptionValue.pCObj = NULL;
return;
}
switch ( m_dhcpOptionDataType )
{
case DhcpByteOption:
case DhcpWordOption:
case DhcpDWordOption:
case DhcpIpAddressOption:
delete m_dhcpOptionValue.paDword;
break;
case DhcpStringDataOption:
delete m_dhcpOptionValue.paString;
break;
case DhcpDWordDWordOption:
delete m_dhcpOptionValue.paDwordDword;
break;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
delete m_dhcpOptionValue.paBinary;
break;
default:
ASSERT( FALSE );
delete m_dhcpOptionValue.pCObj;
break;
}
m_nUpperBound = -1;
m_dhcpOptionDataType = DhcpByteOption;
m_dhcpOptionValue.pCObj = NULL;
}
//
// Initialize the data value properly
//
LONG
CDhcpOptionValue::InitValue
(
DHCP_OPTION_DATA_TYPE dhcDataType, // The type of value
INT cUpperBound, // Maximum upper bound
BOOL bProvideDefaultValue // Should an empty default value be provided?
)
{
LONG err = 0;
//
// Release any older value.
//
FreeValue();
//
// Initialize the new value
//
m_dhcpOptionDataType = dhcDataType;
m_nUpperBound = cUpperBound <= 0 ? 1 : cUpperBound;
CATCH_MEM_EXCEPTION
{
switch ( m_dhcpOptionDataType )
{
case DhcpByteOption:
case DhcpWordOption:
case DhcpDWordOption:
case DhcpIpAddressOption:
m_dhcpOptionValue.paDword = new CDWordArray;
if ( bProvideDefaultValue)
{
m_dhcpOptionValue.paDword->SetAtGrow( 0, 0 );
}
break;
case DhcpStringDataOption:
m_dhcpOptionValue.paString = new CStringArray;
if ( bProvideDefaultValue )
{
m_dhcpOptionValue.paString->SetAtGrow( 0, _T("") );
}
break;
case DhcpDWordDWordOption:
m_dhcpOptionValue.paDwordDword = new CDWordDWordArray;
if ( bProvideDefaultValue )
{
m_dhcpOptionValue.paBinary->SetAtGrow( 0, 0 );
}
break;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
m_dhcpOptionValue.paBinary = new CByteArray;
if ( bProvideDefaultValue )
{
m_dhcpOptionValue.paBinary->SetAtGrow( 0, 0 );
}
break;
default:
err = IDS_INVALID_OPTION_DATA;
break;
}
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::SetData
(
const DHCP_OPTION_DATA * podData
)
{
LONG err = 0;
if ( err = InitValue( podData->Elements[0].OptionType,
podData->NumElements,
FALSE ) )
{
return err;
}
CATCH_MEM_EXCEPTION
{
for ( INT i = 0; i < m_nUpperBound; i++ )
{
const DHCP_OPTION_DATA_ELEMENT * pElem = &podData->Elements[i];
switch ( m_dhcpOptionDataType )
{
case DhcpByteOption:
m_dhcpOptionValue.paDword->SetAtGrow(i, pElem->Element.ByteOption );
break;
case DhcpWordOption:
m_dhcpOptionValue.paDword->SetAtGrow(i, pElem->Element.WordOption );
break;
case DhcpDWordOption:
m_dhcpOptionValue.paDword->SetAtGrow(i, pElem->Element.DWordOption );
break;
case DhcpIpAddressOption:
m_dhcpOptionValue.paDword->Add(pElem->Element.IpAddressOption );
break;
case DhcpDWordDWordOption:
{
/*
CByteArray * paByte = m_dhcpOptionValue.paBinary;
paByte->SetSize( (sizeof (DWORD) / sizeof (BYTE)) * 2 );
DWORD dw = pElem->Element.DWordDWordOption.DWord1;
for ( INT j = 0; j < 4; j++ )
{
paByte->SetAtGrow(j, (UCHAR)(dw & 0xff) );
dw >>= 8;
}
dw = pElem->Element.DWordDWordOption.DWord2;
for ( ; j < 8; j++ )
{
paByte->SetAtGrow(j, (UCHAR)(dw & 0xff) );
dw >>= 8;
}
*/
m_dhcpOptionValue.paDwordDword->SetAtGrow(i, pElem->Element.DWordDWordOption);
}
break;
case DhcpStringDataOption:
{
CString strTemp;
if ( pElem->Element.StringDataOption == NULL )
{
strTemp = _T("");
}
else
{
strTemp = pElem->Element.StringDataOption;
}
m_dhcpOptionValue.paString->SetAtGrow(i, strTemp);
}
break;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
{
CByteArray * paByte = m_dhcpOptionValue.paBinary;
INT c = pElem->Element.BinaryDataOption.DataLength;
paByte->SetSize( c );
for ( INT j = 0; j < c; j++ )
{
paByte->SetAtGrow(j, pElem->Element.BinaryDataOption.Data[j] );
}
}
break;
default:
err = IDS_INVALID_OPTION_DATA;
} // End switch
if ( err )
{
break;
}
} // End for
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::SetData
(
const CDhcpOptionValue * pOptionValue
)
{
LONG err = 0;
if ( err = InitValue( pOptionValue->QueryDataType(),
pOptionValue->QueryUpperBound(),
FALSE ) )
{
return err;
}
CATCH_MEM_EXCEPTION
{
for ( INT i = 0; i < m_nUpperBound; i++ )
{
switch ( m_dhcpOptionDataType )
{
case DhcpByteOption:
m_dhcpOptionValue.paDword->SetAtGrow(i, pOptionValue->m_dhcpOptionValue.paDword->GetAt(i));
break;
case DhcpWordOption:
m_dhcpOptionValue.paDword->SetAtGrow(i, pOptionValue->m_dhcpOptionValue.paDword->GetAt(i));
break;
case DhcpDWordOption:
m_dhcpOptionValue.paDword->SetAtGrow(i, pOptionValue->m_dhcpOptionValue.paDword->GetAt(i));
break;
case DhcpIpAddressOption:
m_dhcpOptionValue.paDword->Add(pOptionValue->m_dhcpOptionValue.paDword->GetAt(i));
break;
case DhcpDWordDWordOption:
{
/*
CByteArray * paByte = m_dhcpOptionValue.paBinary;
paByte->SetSize( (sizeof (DWORD) / sizeof (BYTE)) * 2 );
for ( INT j = 0; j < 8; j++ )
{
paByte->SetAtGrow(j, pOptionValue->m_dhcpOptionValue.paBinary->GetAt(j));
}
*/
m_dhcpOptionValue.paDwordDword->Add(pOptionValue->m_dhcpOptionValue.paDwordDword->GetAt(i));
}
break;
case DhcpStringDataOption:
{
m_dhcpOptionValue.paString->SetAtGrow(i, pOptionValue->m_dhcpOptionValue.paString->GetAt(i));
}
break;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
{
CByteArray * paByte = m_dhcpOptionValue.paBinary;
INT_PTR c = pOptionValue->m_dhcpOptionValue.paBinary->GetSize();
paByte->SetSize( c );
for ( INT_PTR j = 0; j < c; j++ )
{
paByte->SetAtGrow(j, pOptionValue->m_dhcpOptionValue.paBinary->GetAt(j));
}
}
break;
default:
err = IDS_INVALID_OPTION_DATA;
} // End switch
if ( err )
{
break;
}
} // End for
}
END_MEM_EXCEPTION(err)
return err;
}
INT
CDhcpOptionValue::QueryBinary
(
INT index
) const
{
if ( m_dhcpOptionValue.paBinary->GetUpperBound() < index )
{
return -1;
}
return m_dhcpOptionValue.paBinary->GetAt( index );
}
const CByteArray *
CDhcpOptionValue::QueryBinaryArray () const
{
return m_dhcpOptionValue.paBinary;
}
//
// Return a string representation of the current value.
//
// If fLineFeed is true, seperate each individual value
// by a linefeed. Otherwise, by a comma.
//
LONG
CDhcpOptionValue::QueryDisplayString
(
CString & strResult,
BOOL fLineFeed
) const
{
CString strBuf;
INT i, c;
LONG err = 0;
LPCTSTR pszDwordDwordMask = _T("0x%08lX%08lX");
LPCTSTR pszMaskDec = _T("%ld");
LPCTSTR pszMaskHex = _T("0x%x");
LPCTSTR pszMaskStr1 = _T("%s");
LPCTSTR pszMaskStr2 = _T("\"%s\"");
LPCTSTR pszMaskBin = _T("%2.2x");
LPCTSTR pszMask;
LPCTSTR pszMaskEllipsis = _T("...");
LPCTSTR pszSepComma = _T(", ");
LPCTSTR pszSepLF = _T("\r\n");
CATCH_MEM_EXCEPTION
{
strResult.Empty();
for ( i = 0; i < m_nUpperBound; i++ )
{
strBuf.Empty();
if ( i )
{
strResult += fLineFeed ? pszSepLF : pszSepComma;
}
switch ( QueryDataType() )
{
case DhcpByteOption:
case DhcpWordOption:
case DhcpDWordOption:
pszMask = pszMaskHex;
strBuf.Format(pszMask, QueryNumber(i));
break;
case DhcpStringDataOption:
pszMask = m_nUpperBound > 1
? pszMaskStr2
: pszMaskStr1;
strBuf.Format(pszMask, m_dhcpOptionValue.paString->ElementAt(0));
break;
case DhcpIpAddressOption:
if (!QueryIpAddr(i))
{
// Set the string to "<None>" iff the list is empty
if (!i)
strResult.LoadString (IDS_INFO_FORMAT_IP_NONE);
break;
}
::UtilCvtIpAddrToWstr(QueryIpAddr(i), &strBuf);
break;
case DhcpDWordDWordOption:
{
DWORD_DWORD dwdwValue = QueryDwordDword(i);
pszMask = pszDwordDwordMask;
strBuf.Format(pszMask, dwdwValue.DWord1, dwdwValue.DWord2);
}
break;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
for ( c = 0; c < m_dhcpOptionValue.paBinary->GetSize(); c++ )
{
if (c)
strBuf += _T(" ");
DWORD dwValue = (BYTE) m_dhcpOptionValue.paBinary->GetAt( c );
CString strTemp;
strTemp.Format(pszMaskBin, dwValue);
strBuf += strTemp;
}
//pszMask = pszMaskHex;
//strBuf.Format(pszMask, QueryNumber(i));
break;
default:
strResult.LoadString(IDS_INFO_TYPNAM_INVALID);
break;
}
strResult += strBuf;
}
}
END_MEM_EXCEPTION(err)
return err;
}
//
// Return a string representation of the current value.
//
//
LONG
CDhcpOptionValue::QueryRouteArrayDisplayString
(
CString & strResult
) const
{
BOOL fLineFeed = FALSE;
CString strBuf;
INT i, c;
LONG err = 0;
LPCTSTR pszDwordDwordMask = _T("0x%08lX%08lX");
LPCTSTR pszMaskDec = _T("%ld");
LPCTSTR pszMaskHex = _T("0x%x");
LPCTSTR pszMaskStr1 = _T("%s");
LPCTSTR pszMaskStr2 = _T("\"%s\"");
LPCTSTR pszMaskBin = _T("%2.2x");
LPCTSTR pszMask;
LPCTSTR pszMaskEllipsis = _T("...");
LPCTSTR pszSepComma = _T(", ");
LPCTSTR pszSepLF = _T("\r\n");
CATCH_MEM_EXCEPTION
{
strResult.Empty();
int bEmpty = TRUE;
for ( i = 0; i < m_nUpperBound; i++ )
{
if ( i )
{
strResult += fLineFeed ? pszSepLF : pszSepComma;
}
int nDataSize = (int)m_dhcpOptionValue.paBinary->GetSize();
LPBYTE pData = (LPBYTE) m_dhcpOptionValue.paBinary->GetData();
// convert pData to list of ip addresses as per RFC
while( nDataSize > sizeof(DWORD) )
{
// first 1 byte contains the # of bits in subnetmask
nDataSize --;
BYTE nBitsMask = *pData ++;
DWORD Mask = (~0);
if( nBitsMask < 32 ) Mask <<= (32-nBitsMask);
// based on the # of bits, the next few bytes contain
// the subnet address for the 1-bits of subnet mask
int nBytesDest = (nBitsMask+7)/8;
if( nBytesDest > 4 ) nBytesDest = 4;
DWORD Dest = 0;
memcpy( &Dest, pData, nBytesDest );
pData += nBytesDest;
nDataSize -= nBytesDest;
// subnet address is obviously in network order.
Dest = ntohl(Dest);
// now the four bytes would be the router address
DWORD Router = 0;
if( nDataSize < sizeof(DWORD) )
{
Assert( FALSE ); break;
}
memcpy(&Router, pData, sizeof(DWORD));
Router = ntohl( Router );
pData += sizeof(DWORD);
nDataSize -= sizeof(DWORD);
// now fill the list box..
CString strDest, strMask, strRouter;
::UtilCvtIpAddrToWstr(Dest, &strDest);
::UtilCvtIpAddrToWstr(Mask, &strMask);
::UtilCvtIpAddrToWstr(Router, &strRouter);
strBuf += strDest;
strBuf += fLineFeed ? pszSepLF : pszSepComma;
strBuf += strMask;
strBuf += fLineFeed ? pszSepLF : pszSepComma;
strBuf += strRouter;
if( nDataSize > sizeof(DWORD) ) {
strBuf += fLineFeed ? pszSepLF : pszSepComma;
}
bEmpty = FALSE;
}
strResult += strBuf;
}
if( bEmpty )
{
strResult.LoadString( IDS_INFO_FORMAT_IP_NONE );
}
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::SetString
(
LPCTSTR pszNewValue,
INT index
)
{
if ( m_dhcpOptionDataType != DhcpStringDataOption )
{
return ERROR_INVALID_PARAMETER;
}
ASSERT( m_dhcpOptionValue.paString != NULL );
LONG err = 0;
CATCH_MEM_EXCEPTION
{
m_dhcpOptionValue.paString->SetAtGrow( index, pszNewValue );
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::RemoveString
(
INT index
)
{
if ( m_dhcpOptionDataType != DhcpStringDataOption )
{
return ERROR_INVALID_PARAMETER;
}
ASSERT( m_dhcpOptionValue.paString != NULL );
LONG err = 0;
CATCH_MEM_EXCEPTION
{
m_dhcpOptionValue.paString->RemoveAt( index );
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::SetNumber
(
INT nValue,
INT index
)
{
if ( m_dhcpOptionDataType != DhcpByteOption
&& m_dhcpOptionDataType != DhcpWordOption
&& m_dhcpOptionDataType != DhcpDWordOption
&& m_dhcpOptionDataType != DhcpIpAddressOption
&& m_dhcpOptionDataType != DhcpBinaryDataOption
&& m_dhcpOptionDataType != DhcpEncapsulatedDataOption
)
{
return ERROR_INVALID_PARAMETER;
}
ASSERT( m_dhcpOptionValue.paDword != NULL );
LONG err = 0;
CATCH_MEM_EXCEPTION
{
if ( m_dhcpOptionDataType != DhcpBinaryDataOption &&
m_dhcpOptionDataType != DhcpEncapsulatedDataOption)
{
m_dhcpOptionValue.paDword->SetAtGrow( index, (DWORD) nValue );
}
else
{
m_dhcpOptionValue.paBinary->SetAtGrow( index, (BYTE) nValue );
}
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::RemoveNumber
(
INT index
)
{
if ( m_dhcpOptionDataType != DhcpByteOption
&& m_dhcpOptionDataType != DhcpWordOption
&& m_dhcpOptionDataType != DhcpDWordOption
&& m_dhcpOptionDataType != DhcpIpAddressOption
&& m_dhcpOptionDataType != DhcpBinaryDataOption
&& m_dhcpOptionDataType != DhcpEncapsulatedDataOption
)
{
return ERROR_INVALID_PARAMETER;
}
ASSERT( m_dhcpOptionValue.paDword != NULL );
LONG err = 0;
CATCH_MEM_EXCEPTION
{
if ( m_dhcpOptionDataType != DhcpBinaryDataOption &&
m_dhcpOptionDataType != DhcpEncapsulatedDataOption )
{
m_dhcpOptionValue.paDword->RemoveAt( index );
}
else
{
m_dhcpOptionValue.paBinary->RemoveAt( index );
}
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::QueryNumber
(
INT index
) const
{
if ( m_dhcpOptionDataType != DhcpByteOption
&& m_dhcpOptionDataType != DhcpWordOption
&& m_dhcpOptionDataType != DhcpDWordOption
&& m_dhcpOptionDataType != DhcpIpAddressOption
&& m_dhcpOptionDataType != DhcpBinaryDataOption
&& m_dhcpOptionDataType != DhcpEncapsulatedDataOption
)
{
return -1;
}
LONG cResult;
if ( m_dhcpOptionDataType == DhcpBinaryDataOption ||
m_dhcpOptionDataType == DhcpEncapsulatedDataOption )
{
ASSERT( m_dhcpOptionValue.paBinary != NULL );
cResult = index < m_dhcpOptionValue.paBinary->GetSize()
? m_dhcpOptionValue.paBinary->GetAt( index )
: -1;
}
else
{
ASSERT( m_dhcpOptionValue.paDword != NULL );
cResult = index < m_dhcpOptionValue.paDword->GetSize()
? m_dhcpOptionValue.paDword->GetAt( index )
: -1;
}
return cResult;
}
LPCTSTR
CDhcpOptionValue::QueryString
(
INT index
) const
{
if ( m_dhcpOptionDataType != DhcpStringDataOption )
{
return NULL;
}
const CString & str = m_dhcpOptionValue.paString->ElementAt( index );
return str;
}
DHCP_IP_ADDRESS
CDhcpOptionValue::QueryIpAddr
(
INT index
) const
{
return (DHCP_IP_ADDRESS) QueryNumber( index );
}
LONG
CDhcpOptionValue::SetIpAddr
(
DHCP_IP_ADDRESS dhcIpAddr,
INT index
)
{
return SetNumber( (INT) dhcIpAddr, index );
}
LONG
CDhcpOptionValue::RemoveIpAddr
(
INT index
)
{
return RemoveNumber( index );
}
BOOL
CDhcpOptionValue :: CreateBinaryData
(
const DHCP_BINARY_DATA * podBin,
DHCP_BINARY_DATA * pobData
)
{
//
// Note: CObject::operator new asserts if data length is zero
//
pobData->Data = new BYTE [ podBin->DataLength + 1 ] ;
if ( pobData == NULL )
{
return FALSE ;
}
pobData->DataLength = podBin->DataLength ;
::memcpy( pobData->Data, podBin->Data, pobData->DataLength ) ;
return TRUE ;
}
BOOL
CDhcpOptionValue :: CreateBinaryData
(
const CByteArray * paByte,
DHCP_BINARY_DATA * pobData
)
{
//
// Note: CObject::operator new asserts if data length is zero
//
pobData->Data = new BYTE [ (UINT) (paByte->GetSize() + 1) ] ;
if ( pobData == NULL )
{
return NULL ;
}
pobData->DataLength = (DWORD) paByte->GetSize() ;
for ( INT i = 0 ; i < paByte->GetSize() ; i++ )
{
pobData->Data[i] = paByte->GetAt( i ) ;
}
return TRUE ;
}
DWORD_DWORD
CDhcpOptionValue::QueryDwordDword
(
int index
) const
{
return m_dhcpOptionValue.paDwordDword->ElementAt( index );
}
LONG
CDhcpOptionValue::SetDwordDword
(
DWORD_DWORD dwdwValue,
int index
)
{
LONG err = 0;
CATCH_MEM_EXCEPTION
{
m_dhcpOptionValue.paDwordDword->SetAtGrow( index, dwdwValue );
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::RemoveDwordDword
(
int index
)
{
LONG err = 0;
CATCH_MEM_EXCEPTION
{
m_dhcpOptionValue.paDwordDword->RemoveAt( index );
}
END_MEM_EXCEPTION(err)
return err;
}
LONG
CDhcpOptionValue::CreateOptionDataStruct
(
// const CDhcpOptionValue * pdhcpOptionValue,
LPDHCP_OPTION_DATA * ppOptionData,
BOOL bForceType
)
{
DHCP_OPTION_DATA * podNew = NULL ;
DHCP_OPTION_DATA_ELEMENT * podeNew ;
LONG err = 0 ;
FreeOptionDataStruct() ;
INT cElem = QueryUpperBound();
INT cElemMin = cElem ? cElem : 1;
INT i, cBytes ;
TCHAR * pwcsz ;
if ( cElem < 0 || (cElem < 1 && ! bForceType) )
{
//ASSERT( FALSE ) ;
return ERROR_INVALID_PARAMETER ;
}
CATCH_MEM_EXCEPTION
{
//
// Allocate the base structure and the array of elements.
//
cBytes = sizeof *podNew + (cElemMin * sizeof *podeNew) ;
podNew = (DHCP_OPTION_DATA *) new BYTE [ cBytes ] ;
podeNew = (DHCP_OPTION_DATA_ELEMENT *) ( ((BYTE *) podNew) + sizeof *podNew ) ;
::ZeroMemory(podNew, cBytes);
podNew->NumElements = cElem;
podNew->Elements = podeNew;
//
// Initialize each element. If we're forcing an option type def,
// just initialize to empty data.
//
if ( cElem == 0 && bForceType )
{
podNew->NumElements = 1 ;
podeNew[0].OptionType = QueryDataType() ;
switch ( podeNew[0].OptionType )
{
case DhcpByteOption:
case DhcpWordOption:
case DhcpDWordOption:
case DhcpIpAddressOption:
case DhcpDWordDWordOption:
podeNew[0].Element.DWordDWordOption.DWord1 = 0 ;
podeNew[0].Element.DWordDWordOption.DWord2 = 0 ;
break ;
case DhcpStringDataOption:
podeNew[0].Element.StringDataOption = new WCHAR [1] ;
podeNew[0].Element.StringDataOption[0] = 0 ;
break ;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
podeNew[0].Element.BinaryDataOption.DataLength = 0 ;
podeNew[0].Element.BinaryDataOption.Data = new BYTE [1] ;
break ;
default:
err = IDS_INVALID_OPTION_DATA ;
}
}
else
for ( i = 0 ; i < cElem ; i++ )
{
podeNew[i].OptionType = QueryDataType() ;
switch ( podeNew[i].OptionType )
{
case DhcpByteOption:
podeNew[i].Element.ByteOption = (BYTE) QueryNumber( i ) ;
break ;
case DhcpWordOption:
podeNew[i].Element.WordOption = (WORD) QueryNumber( i ) ;
break ;
case DhcpDWordOption:
podeNew[i].Element.DWordOption = QueryNumber( i ) ;
break ;
case DhcpDWordDWordOption:
podeNew[i].Element.DWordDWordOption = QueryDwordDword( i );
break ;
case DhcpIpAddressOption:
podeNew[i].Element.IpAddressOption = QueryIpAddr( i ) ;
break ;
case DhcpStringDataOption:
{
//CString * pstrTemp = new CString (QueryString(i));
CString strTemp = QueryString(i);
int nLength = strTemp.GetLength() + 1;
TCHAR * pString = new TCHAR[nLength];
::ZeroMemory(pString, nLength * sizeof(TCHAR));
::CopyMemory(pString, strTemp, strTemp.GetLength() * sizeof(TCHAR));
podeNew[i].Element.StringDataOption = pString;
break;
}
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
podNew->NumElements = 1;
if ( !CreateBinaryData(QueryBinaryArray(),
&podeNew[i].Element.BinaryDataOption) )
{
err = ERROR_NOT_ENOUGH_MEMORY ;
break ;
}
break ;
default:
err = IDS_INVALID_OPTION_DATA ;
}
if ( err )
{
break ;
}
}
}
END_MEM_EXCEPTION(err)
if ( err == 0 )
{
m_pdhcpOptionDataStruct = podNew;
*ppOptionData = podNew;
}
return err ;
}
LONG
CDhcpOptionValue::FreeOptionDataStruct()
{
LONG err = 0;
if ( m_pdhcpOptionDataStruct == NULL )
{
return 0 ;
}
//
// We must deconstruct the struct build in CreateData()
//
INT cElem = m_pdhcpOptionDataStruct->NumElements ;
for ( INT i = 0 ; i < cElem ; i++ )
{
switch ( m_pdhcpOptionDataStruct->Elements[i].OptionType )
{
case DhcpByteOption:
case DhcpWordOption:
case DhcpDWordOption:
case DhcpDWordDWordOption:
case DhcpIpAddressOption:
break;
case DhcpStringDataOption:
delete m_pdhcpOptionDataStruct->Elements[i].Element.StringDataOption ;
break ;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
delete m_pdhcpOptionDataStruct->Elements[i].Element.BinaryDataOption.Data ;
break ;
default:
err = IDS_INVALID_OPTION_DATA ;
break;
}
if ( err )
{
break ;
}
}
//
// Finally, delete the main structure
//
delete m_pdhcpOptionDataStruct ;
m_pdhcpOptionDataStruct = NULL ;
return err ;
}
/////////////////////////////////////////////////////////////////////
//
// CDhcpOption implementation
//
/////////////////////////////////////////////////////////////////////
//
// Normal constructor: just wrapper the data given
//
CDhcpOption::CDhcpOption
(
const DHCP_OPTION & dhpOption
)
: m_dhcpOptionValue( dhpOption ),
m_dhcpOptionId( dhpOption.OptionID ),
m_dhcpOptionType( dhpOption.OptionType ),
m_bDirty(FALSE),
m_dwErr(0)
{
LONG err = 0 ;
CATCH_MEM_EXCEPTION
{
if ( !(SetName(dhpOption.OptionName) &&
SetComment(dhpOption.OptionComment) ) )
{
err = ERROR_NOT_ENOUGH_MEMORY ;
}
}
END_MEM_EXCEPTION(err)
if ( err )
{
ASSERT(FALSE);
//ReportError( err ) ;
}
}
//
// Constructor taking just a value structure. We must query
// the scope for the name, etc.
//
CDhcpOption::CDhcpOption
(
const DHCP_OPTION_VALUE & dhcpOptionValue,
LPCTSTR pszVendor,
LPCTSTR pszUserClass
)
: m_dhcpOptionValue( dhcpOptionValue ),
m_dhcpOptionId( dhcpOptionValue.OptionID ),
m_bDirty(FALSE),
m_dwErr(0),
m_strVendor(pszVendor),
m_strClassName(pszUserClass)
{
}
//
// Copy constructor
//
CDhcpOption::CDhcpOption
(
const CDhcpOption & dhcpOption
)
: m_dhcpOptionId( dhcpOption.m_dhcpOptionId ),
m_dhcpOptionType( dhcpOption.m_dhcpOptionType ),
m_strName( dhcpOption.m_strName ),
m_strComment( dhcpOption.m_strComment ),
m_dhcpOptionValue( dhcpOption.QueryDataType() ),
m_bDirty(FALSE),
m_dwErr(0),
m_strVendor( dhcpOption.m_strVendor ),
m_strClassName ( dhcpOption.m_strClassName )
{
m_dhcpOptionValue = dhcpOption.QueryValue();
}
//
// Constructor using a base type and an overriding value.
//
CDhcpOption::CDhcpOption
(
const CDhcpOption & dhpType,
const DHCP_OPTION_VALUE & dhcOptionValue
)
: m_dhcpOptionId( dhpType.m_dhcpOptionId ),
m_dhcpOptionType( dhpType.QueryOptType() ),
m_strName( dhpType.m_strName ),
m_strComment( dhpType.m_strComment ),
m_dhcpOptionValue( dhcOptionValue ),
m_bDirty(FALSE),
m_dwErr(0),
m_strVendor(dhpType.m_strVendor),
m_strClassName(dhpType.m_strClassName)
{
}
//
// Constructor for dynamic instances
//
CDhcpOption::CDhcpOption
(
DHCP_OPTION_ID nId,
DHCP_OPTION_DATA_TYPE dhcType,
LPCTSTR pszOptionName,
LPCTSTR pszComment,
DHCP_OPTION_TYPE dhcOptType
)
: m_dhcpOptionId( nId ),
m_dhcpOptionType( dhcOptType ),
m_dhcpOptionValue( dhcType, TRUE ),
m_strName( pszOptionName ),
m_strComment( pszComment ),
m_bDirty(FALSE),
m_dwErr(0)
{
}
CDhcpOption::~ CDhcpOption ()
{
}
INT
CDhcpOption::MaxSizeOfType
(
DHCP_OPTION_DATA_TYPE dhcType
)
{
INT nResult = -1 ;
switch ( dhcType )
{
case DhcpByteOption:
nResult = sizeof(CHAR) ;
break ;
case DhcpWordOption:
nResult = sizeof(WORD) ;
break ;
case DhcpDWordOption:
nResult = sizeof(DWORD) ;
break ;
case DhcpIpAddressOption:
nResult = sizeof(DHCP_IP_ADDRESS) ;
break ;
case DhcpDWordDWordOption:
nResult = sizeof(DWORD_DWORD);
break ;
case DhcpBinaryDataOption:
case DhcpEncapsulatedDataOption:
case DhcpStringDataOption:
nResult = STRING_LENGTH_MAX ;
break ;
default:
break;
}
return nResult ;
}
void
CDhcpOption::SetOptType
(
DHCP_OPTION_TYPE dhcOptType
)
{
m_dhcpOptionType = dhcOptType;
}
LONG
CDhcpOption::Update
(
const CDhcpOptionValue & dhpOptionValue
)
{
m_dhcpOptionValue = dhpOptionValue;
return 0;
}
BOOL
CDhcpOption::SetName
(
LPCTSTR pszName
)
{
m_strName = pszName;
return TRUE;
}
BOOL
CDhcpOption::SetComment
(
LPCTSTR pszComment
)
{
m_strComment = pszComment;
return TRUE;
}
void
CDhcpOption::QueryDisplayName
(
CString & cStr
) const
{
cStr.Format(_T("%3.3d %s"), (int) QueryId(), (LPCTSTR) m_strName);
}
/*---------------------------------------------------------------------------
Class COptionValueEnum
Enumerates the options for a given level. Generates a list of
nodes.
Author: EricDav
---------------------------------------------------------------------------*/
COptionValueEnum::COptionValueEnum()
{
}
/*---------------------------------------------------------------------------
COptionValueEnum::Init()
-
Author: EricDav
---------------------------------------------------------------------------*/
DWORD
COptionValueEnum::Init
(
LPCTSTR pServer,
LARGE_INTEGER & liVersion,
DHCP_OPTION_SCOPE_INFO & dhcpOptionScopeInfo
)
{
m_strServer = pServer;
m_liVersion.QuadPart = liVersion.QuadPart;
m_dhcpOptionScopeInfo = dhcpOptionScopeInfo;
return 0;
}
/*---------------------------------------------------------------------------
COptionValueEnum::Copy()
Copies another value enum
Author: EricDav
---------------------------------------------------------------------------*/
void
COptionValueEnum::Copy(COptionValueEnum * pEnum)
{
CDhcpOption * pOption = NULL;
pEnum->Reset();
while (pOption = pEnum->Next())
{
AddTail(pOption);
}
m_liVersion.QuadPart = pEnum->m_liVersion.QuadPart;
m_dhcpOptionScopeInfo = pEnum->m_dhcpOptionScopeInfo;
}
/*---------------------------------------------------------------------------
COptionValueEnum::Remove()
removes an option from the list
Author: EricDav
---------------------------------------------------------------------------*/
void
COptionValueEnum::Remove(DHCP_OPTION_ID optionId, LPCTSTR pszVendor, LPCTSTR pszClass)
{
CDhcpOption * pOption = NULL;
Reset();
while (pOption = Next())
{
if ( pOption->QueryId() == optionId &&
(lstrcmp(pOption->GetVendor(), pszVendor) == 0) &&
(lstrcmp(pOption->GetClassName(), pszClass) == 0) )
{
COptionList::Remove(pOption);
delete pOption;
break;
}
}
}
/*---------------------------------------------------------------------------
COptionValueEnum::Enum()
Calls the appropriate enum function depending upon version
Author: EricDav
---------------------------------------------------------------------------*/
DWORD
COptionValueEnum::Enum()
{
DWORD dwErr;
RemoveAll();
if (m_liVersion.QuadPart >= DHCP_NT5_VERSION)
{
// enumerate standard plus the vendor and class ID based options
dwErr = EnumOptionsV5();
}
else
{
// Enumerate the standard options
dwErr = EnumOptions();
}
// reset our position pointer to the head
Reset();
return dwErr;
}
/*---------------------------------------------------------------------------
COptionValueEnum::EnumOptions()
Description
Author: EricDav
---------------------------------------------------------------------------*/
DWORD
COptionValueEnum::EnumOptions()
{
LPDHCP_OPTION_VALUE_ARRAY pOptionValues = NULL;
DWORD dwOptionsRead = 0, dwOptionsTotal = 0;
DWORD err = ERROR_SUCCESS;
HRESULT hr = hrOK;
DHCP_RESUME_HANDLE dhcpResumeHandle = NULL;
err = ::DhcpEnumOptionValues((LPWSTR) ((LPCTSTR) m_strServer),
&m_dhcpOptionScopeInfo,
&dhcpResumeHandle,
0xFFFFFFFF,
&pOptionValues,
&dwOptionsRead,
&dwOptionsTotal);
Trace4("Server %s - DhcpEnumOptionValues returned %lx, read %d, Total %d.\n", m_strServer, err, dwOptionsRead, dwOptionsTotal);
if (dwOptionsRead && dwOptionsTotal && pOptionValues)
{
for (DWORD i = 0; i < dwOptionsRead; i++)
{
//
// Filter out the "special" option values that we don't want the
// user to see.
//
// CODEWORK: don't filter vendor specifc options... all vendor
// specifc options are visible.
//
if (FilterOption(pOptionValues->Values[i].OptionID))
continue;
//
// Create the result pane item for this element
//
CDhcpOption * pOption = new CDhcpOption(pOptionValues->Values[i], NULL, NULL);
AddTail(pOption);
}
::DhcpRpcFreeMemory(pOptionValues);
}
if (err == ERROR_NO_MORE_ITEMS)
err = ERROR_SUCCESS;
return err;
}
/*---------------------------------------------------------------------------
COptionValueEnum::EnumOptionsV5()
Description
Author: EricDav
---------------------------------------------------------------------------*/
DWORD
COptionValueEnum::EnumOptionsV5()
{
LPDHCP_OPTION_VALUE_ARRAY pOptionValues = NULL;
LPDHCP_ALL_OPTION_VALUES pAllOptions = NULL;
DWORD dwNumOptions, err, i;
err = ::DhcpGetAllOptionValues((LPWSTR) ((LPCTSTR) m_strServer),
0,
&m_dhcpOptionScopeInfo,
&pAllOptions);
Trace2("Server %s - DhcpGetAllOptionValues (Global) returned %lx\n", m_strServer, err);
if (err == ERROR_NO_MORE_ITEMS || err == ERROR_SUCCESS)
{
if (pAllOptions == NULL)
{
// This happens when stressing the server. Perhaps when server is OOM.
err = ERROR_OUTOFMEMORY;
return err;
}
// get the list of options (vendor and non-vendor) defined for
// the NULL class (no class)
for (i = 0; i < pAllOptions->NumElements; i++)
{
CreateOptions(pAllOptions->Options[i].OptionsArray,
pAllOptions->Options[i].ClassName,
pAllOptions->Options[i].VendorName);
}
if (pAllOptions)
::DhcpRpcFreeMemory(pAllOptions);
}
if (err == ERROR_NO_MORE_ITEMS)
err = ERROR_SUCCESS;
return err;
}
/*---------------------------------------------------------------------------
COptionValueEnum::CreateOptions()
Description
Author: EricDav
---------------------------------------------------------------------------*/
HRESULT
COptionValueEnum::CreateOptions
(
LPDHCP_OPTION_VALUE_ARRAY pOptionValues,
LPCTSTR pClassName,
LPCTSTR pszVendor
)
{
HRESULT hr = hrOK;
SPITFSNode spNode;
CDhcpOptionItem * pOptionItem;
CString strDynBootpClassName;
if (pOptionValues == NULL)
return hr;
Trace1("COptionValueEnum::CreateOptions - Creating %d options\n", pOptionValues->NumElements);
COM_PROTECT_TRY
{
for (DWORD i = 0; i < pOptionValues->NumElements; i++)
{
//
// Filter out the "special" option values that we don't want the
// user to see.
//
// don't filter vendor specifc options... all vendor
// specifc options are visible.
//
// also don't filter out class based options
// except for dynamic bootp class
if ( (FilterOption(pOptionValues->Values[i].OptionID) &&
pClassName == NULL &&
!pszVendor) ||
(FilterOption(pOptionValues->Values[i].OptionID) &&
(pClassName && m_strDynBootpClassName.CompareNoCase(pClassName) == 0) &&
!pszVendor) )
{
continue;
}
//
// Create the option
//
CDhcpOption * pOption = new CDhcpOption(pOptionValues->Values[i], pszVendor, pClassName);
AddTail(pOption);
}
}
COM_PROTECT_CATCH
return hr;
}
/////////////////////////////////////////////////////////////////////
//
// CDhcpDefaultOptionsOnServer implementation
//
/////////////////////////////////////////////////////////////////////
LPCTSTR pszResourceName = _T("DHCPOPT") ;
LPCTSTR pszResourceType = _T("TEXT") ;
const int cchFieldMax = 500 ;
OPT_TOKEN aOptToken [] =
{
{ DhcpIpAddressOption, _T("IP Addr") },
{ DhcpIpAddressOption, _T("IPAddr") },
{ DhcpIpAddressOption, _T("IP Address") },
{ DhcpIpAddressOption, _T("IP Pairs") },
{ DhcpByteOption, _T("byte") },
{ DhcpByteOption, _T("boolean") },
{ DhcpByteOption, _T("octet") },
{ DhcpWordOption, _T("short") },
{ DhcpDWordOption, _T("long") },
{ DhcpDWordDWordOption, _T("double") },
{ DhcpStringDataOption, _T("string") },
{ DhcpBinaryDataOption, _T("binary") },
{ DhcpEncapsulatedDataOption, _T("encapsulated") },
{ -1, _T("generated") },
{ -1, NULL }
};
CDhcpDefaultOptionsOnServer::CDhcpDefaultOptionsOnServer()
{
m_pos = NULL;
}
CDhcpDefaultOptionsOnServer::~CDhcpDefaultOptionsOnServer()
{
RemoveAll();
}
LONG
CDhcpDefaultOptionsOnServer::RemoveAll()
{
//
// Clean the list of all old entries
//
while (!m_listOptions.IsEmpty())
{
delete m_listOptions.RemoveHead();
}
return 0;
}
CDhcpOption *
CDhcpDefaultOptionsOnServer::First()
{
Reset();
return Next();
}
CDhcpOption *
CDhcpDefaultOptionsOnServer::Next()
{
return m_pos == NULL ? NULL : m_listOptions.GetNext( m_pos ) ;
}
void
CDhcpDefaultOptionsOnServer::Reset()
{
m_pos = m_listOptions.GetCount() ? m_listOptions.GetHeadPosition() : NULL ;
}
CDhcpOption *
CDhcpDefaultOptionsOnServer::Find
(
DHCP_OPTION_ID dhcpOptionId,
LPCTSTR pszVendor
)
{
POSITION pos = m_listOptions.GetHeadPosition();
CDhcpOption* pCurrent;
CDhcpOption* pFound = NULL;
CString strVendor = pszVendor;
while (pos != NULL)
{
pCurrent = m_listOptions.GetNext(pos);
// check the options IDs and the vendor classes match
if ( (pCurrent->QueryId() == dhcpOptionId) &&
( (!pszVendor && !pCurrent->GetVendor()) ||
(pCurrent->GetVendor() && (strVendor.CompareNoCase(pCurrent->GetVendor()) == 0) ) ) )
{
pFound = pCurrent;
break;
}
}
return pFound;
}
// Sorts the options by ID
LONG
CDhcpDefaultOptionsOnServer::SortById()
{
return m_listOptions.SortById();
}
LONG
CDhcpDefaultOptionsOnServer::Enumerate
(
LPCWSTR pServer,
LARGE_INTEGER liVersion
)
{
if (liVersion.QuadPart >= DHCP_NT5_VERSION)
{
return EnumerateV5(pServer);
}
else
{
return EnumerateV4(pServer);
}
}
LONG
CDhcpDefaultOptionsOnServer::EnumerateV4
(
LPCWSTR pServer
)
{
//
// Use new API to get the param types
//
LPDHCP_OPTION_ARRAY pOptionsArray = NULL;
DHCP_RESUME_HANDLE dhcpResumeHandle = NULL;
LPDHCP_OPTION Options, pCurOption;
DWORD i;
DWORD dwNumOptions;
DWORD dwOptionsRead;
LONG err;
err = ::DhcpEnumOptions(pServer,
&dhcpResumeHandle,
0xFFFFFFFF, // get all.
&pOptionsArray,
&dwOptionsRead,
&m_dwOptionsTotal );
if ( err )
{
return err;
}
//
// Discard all the old data
//
RemoveAll() ;
if (pOptionsArray == NULL)
{
// This happens when stressing the server. Perhaps when server is OOM.
return ERROR_OUTOFMEMORY;
}
try
{
Options = pOptionsArray->Options;
dwNumOptions = pOptionsArray->NumElements;
if ((dwNumOptions > 0) && (Options == NULL))
{
ASSERT(FALSE && _T("Data Inconsistency"));
return ERROR_OUTOFMEMORY; // Just in case
}
for(i = 0; i < dwNumOptions; i++)
{
//
// Create the new type object.
//
pCurOption = Options + i;
CDhcpOption * pdhcpOption = new CDhcpOption(*pCurOption);
//
// Add the new host to the list.
//
m_listOptions.AddTail(pdhcpOption);
}
}
catch (...)
{
err = ERROR_NOT_ENOUGH_MEMORY;
}
::DhcpRpcFreeMemory(pOptionsArray);
pOptionsArray = NULL;
Reset();
return err;
}
LONG
CDhcpDefaultOptionsOnServer::EnumerateV5
(
LPCWSTR pServer
)
{
//
// Use new API to get the param types
//
LPDHCP_OPTION Options, pCurOption;
DWORD i;
DWORD dwNumOptions = 0;
DWORD dwOptionsRead = 0;
DWORD dwFlags = 0;
LONG err = 0;
LPDHCP_ALL_OPTIONS pAllOptions = NULL;
err = ::DhcpGetAllOptions((LPWSTR) pServer,
dwFlags,
&pAllOptions);
if ( err )
{
return err;
}
//
// Discard all the old data
//
RemoveAll() ;
if (pAllOptions == NULL)
{
// This happens when stressing the server. Perhaps when server is OOM.
return ERROR_OUTOFMEMORY;
}
try
{
// first pull out the non-vendor options
if (pAllOptions->NonVendorOptions != NULL)
{
Options = pAllOptions->NonVendorOptions->Options;
dwNumOptions = pAllOptions->NonVendorOptions->NumElements;
}
if ((dwNumOptions > 0) && (Options == NULL))
{
ASSERT(FALSE && _T("Data Inconsistency"));
return ERROR_OUTOFMEMORY; // Just in case
}
for (i = 0; i < dwNumOptions; i++)
{
//
// Create the new type object.
//
pCurOption = Options + i;
CDhcpOption * pdhcpOption = new CDhcpOption(*pCurOption);
//
// Add the new host to the list.
//
m_listOptions.AddTail(pdhcpOption);
}
// now the vendor options
for (i = 0; i < pAllOptions->NumVendorOptions; i++)
{
pCurOption = &pAllOptions->VendorOptions[i].Option;
CDhcpOption * pdhcpOption = new CDhcpOption(*pCurOption);
pdhcpOption->SetVendor(pAllOptions->VendorOptions[i].VendorName);
//
// Add the new host to the list.
//
m_listOptions.AddTail(pdhcpOption);
}
}
catch (...)
{
err = ERROR_NOT_ENOUGH_MEMORY;
}
if (pAllOptions)
::DhcpRpcFreeMemory(pAllOptions);
SortById();
Reset();
return err;
}
/////////////////////////////////////////////////////////////////////
//
// CDhcpDefaultOptionsMasterList implementation
//
/////////////////////////////////////////////////////////////////////
CDhcpDefaultOptionsMasterList::CDhcpDefaultOptionsMasterList()
{
m_pos = NULL;
}
CDhcpDefaultOptionsMasterList::~CDhcpDefaultOptionsMasterList()
{
//
// Delete all entries in the list
//
while (!m_listOptions.IsEmpty())
{
delete m_listOptions.RemoveHead();
}
}
CDhcpOption *
CDhcpDefaultOptionsMasterList::First()
{
Reset();
return Next();
}
CDhcpOption *
CDhcpDefaultOptionsMasterList::Next()
{
return m_pos == NULL ? NULL : m_listOptions.GetNext( m_pos ) ;
}
void
CDhcpDefaultOptionsMasterList::Reset()
{
m_pos = m_listOptions.GetCount() ? m_listOptions.GetHeadPosition() : NULL ;
}
int
CDhcpDefaultOptionsMasterList::GetCount()
{
return (int)m_listOptions.GetCount();
}
long
CDhcpDefaultOptionsMasterList::BuildList()
{
AFX_MANAGE_STATE(AfxGetStaticModuleState());
LONG err = 0 ;
CDhcpOption * pOption;
HRSRC hRes = NULL ;
HGLOBAL hText = NULL ;
LPTSTR pszText = NULL ;
LPCTSTR pcszText ;
size_t cchText = 0;
UINT uBufSize = 0;
LPTSTR * szParms;
TCHAR szUnknown[] = _T("(Unknown)"); // This is just to prevent a GP fault (should not be in resource)
CATCH_MEM_EXCEPTION
{
do
{
//
// IMPORTANT!!! There is no way to determine from the .mc file how many
// options are defined. This number is therefore hard-coded
// here, and should reflect the highest parameter number in
// the .mc file.
//
// The extra 16 entries are for safety
// when calling FormatMessage().
szParms = new LPTSTR[IDS_OPTION_MAX + 16];
Trace0("BuildList - Now building list of option parameters\n");
CString strOptionText;
// Initialize the extra entries to something that will not GP fault.
for (int i = 0; i < 16; i++)
{
szParms[IDS_OPTION_MAX+i] = szUnknown;
}
//
// Don't mess with the order of the ID definitions!!!
//
for (i = 0; i < IDS_OPTION_MAX; ++i)
{
if (strOptionText.LoadString(IDS_OPTION1 + i))
{
ASSERT(strOptionText.GetLength() > 0);
uBufSize += strOptionText.GetLength();
szParms[i] = new TCHAR[strOptionText.GetLength()+1];
::_tcscpy(szParms[i], (LPCTSTR)strOptionText);
}
else
{
//
// Failed to load the string from the resource
// for some reason.
//
CString strTemp;
strTemp.LoadString(IDS_OPTION1 + i);
Trace1("BuildList - WARNING: Failed to load option text %s\n", strTemp);
err = ::GetLastError();
szParms[i] = szUnknown; // Prevent from GP faulting
break;
}
}
if (err != ERROR_SUCCESS)
{
break;
}
// allocate a buffer big enough to hold the data
uBufSize *= sizeof(TCHAR);
uBufSize *= 2;
pszText = (LPTSTR) malloc(uBufSize);
if (pszText == NULL)
{
err = ERROR_OUTOFMEMORY;
break;
}
//
// Since we are a COM object, get our instance handle to use so that FormatMessage
// looks in the right place for our resources.
//
HINSTANCE hInst = _Module.GetModuleInstance();
while (cchText == 0)
{
cchText = ::FormatMessage(FORMAT_MESSAGE_FROM_HMODULE |
FORMAT_MESSAGE_ARGUMENT_ARRAY,
(HMODULE) hInst, // hModule
DHCP_OPTIONS, // dwMessageId loaded from a system dll
0L, // dwLanguageId
OUT (LPTSTR)pszText,
uBufSize/sizeof(TCHAR),
(va_list *)szParms);
if (cchText == 0)
{
err = ::GetLastError();
Trace1("BuildList - FormatMessage failed - error %d\n", err);
// grow the buffer and try again
uBufSize += uBufSize/2;
pszText = (LPTSTR) realloc(pszText, uBufSize);
if (pszText == NULL)
{
err = ERROR_OUTOFMEMORY;
break;
}
}
else
{
// done
break;
}
}
//
// Walk the resource, parsing each line. If the line converts
// to a tangible type, add it to the list.
//
for ( pcszText = pszText ; pcszText ; )
{
scanNextParamType( &pcszText, &pOption);
if ( pOption )
{
m_listOptions.AddTail(pOption) ;
}
}
} while ( FALSE ) ;
}
END_MEM_EXCEPTION( err )
for (int i = 0; i < IDS_OPTION_MAX; ++i)
{
if (szParms[i] != szUnknown)
delete[] szParms[i];
}
delete[] szParms;
free(pszText);
Reset();
return NOERROR;
}
BOOL
CDhcpDefaultOptionsMasterList::scanNextParamType
(
LPCTSTR * ppszText,
CDhcpOption * * ppOption
)
{
TCHAR szField [ cchFieldMax ] ;
TCHAR szName [ cchFieldMax ] ;
TCHAR szComment [ cchFieldMax ] ;
BOOL bResult = TRUE ;
BOOL bArray = FALSE ;
int eofld, cch, itype, cbLgt ;
LPCTSTR pszText = *ppszText ;
CDhcpOption * pOption = NULL ;
DHCP_OPTION_ID did ;
DHCP_OPTION_DATA_TYPE dtype = (DHCP_OPTION_DATA_TYPE)0;
for ( eofld = OPTF_OPTION ;
pszText = scanNextField( pszText, szField, sizeof szField ) ;
eofld++ )
{
cch = ::_tcslen( szField ) ;
switch ( eofld )
{
case OPTF_OPTION:
if ( cch > 0 && allDigits( szField ) )
{
did = (DHCP_OPTION_ID) ::_ttoi( szField ) ;
}
else
{
bResult = FALSE ;
}
break ;
case OPTF_NAME:
if ( ::_tcslen( szField ) == 0 )
{
bResult = FALSE ;
break ;
}
::_tcscpy( szName, szField ) ;
break ;
case OPTF_TYPE:
if ( (itype = recognizeToken( aOptToken, szField )) < 0 )
{
Trace2("options CSV ID %d, cannot reconize type %s\n", did, szField);
bResult = FALSE ;
break ;
}
dtype = (DHCP_OPTION_DATA_TYPE) itype ;
break ;
case OPTF_ARRAY_FLAG:
bArray = szField[0] == 'y' || szField[0] == 'Y' ;
break ;
case OPTF_LENGTH:
cbLgt = ::_ttoi( szField ) ;
break ;
case OPTF_DESCRIPTION:
::_tcscpy( szComment, szField ) ;
break ;
case OPTF_REMARK:
case OPTF_MAX:
break ;
}
if ( eofld == OPTF_REMARK || ! bResult )
{
pszText = skipToNextLine( pszText ) ;
if ( *pszText == 0 )
{
pszText = NULL ;
}
break;
}
}
if ( bResult )
{
pOption = new CDhcpOption( did,
dtype,
szName,
szComment,
bArray ? DhcpArrayTypeOption :
DhcpUnaryElementTypeOption ) ;
}
if ( bResult )
{
*ppOption = pOption ;
}
else
{
delete pOption ;
*ppOption = NULL ;
}
*ppszText = pszText ;
return pszText != NULL ;
}
LPCTSTR
CDhcpDefaultOptionsMasterList::scanNextField
(
LPCTSTR pszLine,
LPTSTR pszOut,
int cFieldSize
)
{
//
// Skip junk; return NULL if end-of-buffer.
//
if ( ! skipWs( & pszLine ) )
{
return NULL ;
}
int cch = 0 ;
BOOL bDone = FALSE ;
LPTSTR pszField = pszOut ;
TCHAR ch ;
if ( *pszLine == '\"' )
{
//
// Quoted string.
//
while ( ch = *++pszLine )
{
if ( ch == '\r' )
{
continue ;
}
if ( ch == '\n' || ch == '\"' || cch == cFieldSize )
{
break ;
}
*pszField++ = ch ;
cch++ ;
}
if ( ch == '\"' )
{
pszLine++ ;
}
}
else
while ( ! bDone )
{
ch = *pszLine++ ;
ASSERT( ch != 0 ) ;
switch ( ch )
{
case '\n':
pszLine-- ; // Don't scan past the NL
case ',':
case '\r':
bDone = TRUE ;
break ;
default:
if ( cch < cFieldSize )
{
*pszField++ = ch ;
cch++ ;
}
break ;
}
}
//
// Trim spaces off the end of the field.
//
while ( pszField > pszOut && *(pszField-1) == ' ' )
{
pszField-- ;
}
*pszField = 0 ;
return pszLine ;
}
BOOL
CDhcpDefaultOptionsMasterList::allDigits
(
LPCTSTR psz
)
{
for ( ; *psz ; psz++ )
{
if ( ! isdigit( *psz ) )
{
return FALSE ;
}
}
return TRUE ;
}
int
CDhcpDefaultOptionsMasterList::recognizeToken
(
OPT_TOKEN * apToken,
LPCTSTR pszToken
)
{
int i ;
for ( i = 0 ;
apToken[i].pszOptTypeName && ::lstrcmpi( apToken[i].pszOptTypeName, pszToken ) != 0 ;
i++ ) ;
return apToken[i].eOptType ;
}
LPCTSTR
CDhcpDefaultOptionsMasterList::skipToNextLine
(
LPCTSTR pszLine
)
{
for ( ; *pszLine && *pszLine != '\n' ; pszLine++ ) ;
if ( *pszLine )
{
pszLine++ ; // Don't overscan buffer delimiter.
}
return pszLine ;
}
BOOL
CDhcpDefaultOptionsMasterList::skipWs
(
LPCTSTR * ppszLine
)
{
LPCTSTR pszLine ;
BOOL bResult = FALSE ;
for ( pszLine = *ppszLine ; *pszLine ; pszLine++ )
{
switch ( *pszLine )
{
case ' ':
case '\r':
case '\t':
break ;
default:
bResult = TRUE ;
break ;
}
if ( bResult )
{
break ;
}
}
*ppszLine = pszLine ;
return *pszLine != 0 ;
}