--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/networksecurity/ipsec/ipsec6/src/ipaddress.cpp	Tue Jan 26 15:23:49 2010 +0200
@@ -0,0 +1,235 @@
+// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+// ipaddress.cpp - Basic IP address class for IPSEC use
+// @internalComponent	for IPSEC
+//
+
+#include "ipaddress.h"
+
+TInt TIpAddress::operator==(const TIpAddress &aAddr) const
+	/**
+	* Equality operator.
+	*
+	* Two TIpAddress are equal if the TIp6Addr part matches
+	* exactly (TIp6addr::IsEqual()), and either scope id's
+	* are equal or either one is zero, which acts as a wild
+	* card.
+	*
+	* @param aAddr The other address.
+	*/
+	{
+	// iScope == 0 acting as a "wildcard" is *DUBIOUS* for == operator. need to check -- msa
+	return IsEqual(aAddr) && (iScope == aAddr.iScope || iScope == 0 || aAddr.iScope == 0);
+	}
+
+TBool TIpAddress::operator<=(const TIpAddress &aAddr) const
+	/**
+	* Relation operator.
+	*
+	* The presense of the scope confuse the issue. The nature of the
+	* scope id is such, that only exact equality test makes sense.
+	*
+	* Thus, the "<=" is true if one address is less or equal to the
+	* other, and if scope ids are equal or either one is zero, which acts
+	* as a wild card.
+	*
+	* Thus, EFalse return does not mean that the other address
+	* is "larger", e.g. it is possible that
+	* @code (addr1 <= addr2 || addr2 <= addr1)
+	* @endcode
+	* is false; addresses are not comparable (because scope ids do not match).
+	*/
+	{
+	return
+		(iScope == 0 || aAddr.iScope == 0 || iScope == aAddr.iScope) &&
+		Mem::Compare(&u.iAddr8[0], 16, &aAddr.u.iAddr8[0], 16) <= 0;
+	}
+
+TInt TIpAddress::operator!=(const TIpAddress &aAddr) const
+	{
+	return ! (*this == aAddr);
+	}
+
+TBool TIpAddress::IsEqMask(const TIpAddress &aAddr, const TIpAddress &aMask) const
+	/**
+	* Compare address under mask.
+	*
+	* Tests if
+	* @code (*this & aMask) == (aAddr & aMask)
+	* @endcode
+	* is true.
+	*
+	* @param aAddr The other address.
+	* @param aMask The mask.
+	* @return ETrue, if equal.
+	*/
+	{
+	return
+		((u.iAddr32[0] ^ aAddr.u.iAddr32[0]) & aMask.u.iAddr32[0]) == 0 &&
+		((u.iAddr32[1] ^ aAddr.u.iAddr32[1]) & aMask.u.iAddr32[1]) == 0 &&
+		((u.iAddr32[2] ^ aAddr.u.iAddr32[2]) & aMask.u.iAddr32[2]) == 0 &&
+		((u.iAddr32[3] ^ aAddr.u.iAddr32[3]) & aMask.u.iAddr32[3]) == 0 &&
+		((iScope ^ aAddr.iScope) & aMask.iScope)  == 0;
+	}
+
+TBool TIpAddress::IsMulticast() const
+	/**
+	* Test if address is multicast address.
+	*
+	* The base class TIp6Addr::IsMulticast() returns true only for
+	* real IPv6 multicast addresses. This function expands the test
+	* to work also for IPv4 multicast addresses, which are stored
+	* as IPv4 mapped format.
+	*
+	* @return True, if address is multicast (IPv4 or IPv6).
+	*/
+	{
+	static const union {TUint8 a[4]; TUint32 b;} v4Prefix = { {0, 0, 0xff, 0xff} };
+
+	// TRUE, if real IPv6 multicast
+	if (TIp6Addr::IsMulticast())
+		return TRUE;
+	//
+	// Otherwise, return TRUE, if address is the IPv4
+	// multicast address.
+	return
+		u.iAddr32[0] == 0 &&
+		u.iAddr32[1] == 0 &&
+		u.iAddr32[2] == v4Prefix.b &&
+		(u.iAddr8[12] & 0xF0) == 0xE0;
+	}
+
+
+TInt TIpAddress::SetAddress(const TDesC &aStr, TInt aMask)
+	/**
+	* Set address from a string
+	*
+	* Take a string as a parameter and attempt to parse this as
+	* an IP address.
+	*
+	* The aMask setting is needed when IP address is used
+	* as a bit mask. IPv4 addresses are expanded into IPv4 mapped format.
+	* This would not work right when address is used as a mask, and thus a
+	* special flag is required.
+	*
+	* @param aStr	Literal IPv4 or IPv6 address
+	* @param aMask	Non-zero, if address is to be used as a bitmask
+	* @return KErrNone, if address literal was valid.
+	*/
+	{
+	TInetAddr addr;
+	const TInt ret = addr.Input(aStr);
+	if (ret == KErrNone)
+		return aMask ? SetMask(addr) : SetAddress(addr);
+	return ret;
+	}
+
+TInt TIpAddress::SetMask(const TSockAddr &aAddr)
+	/**
+	* Set address to be used as a mask.
+	*
+	* This function is needed. when aAddr contains a IPv4
+	* address. The resulting IPv4 mapped format would not
+	* be usable as  mask bits, and the high order bits must
+	* also be set.
+	*
+	* @param aAddr The mask
+	* @return KErrNone
+	*/
+	{
+	const TInetAddr &addr = TInetAddr::Cast(aAddr);
+
+	if (addr.Family() == KAfInet || addr.IsV4Mapped())
+		{
+		// Loading IPv4 address requires some extra shuffles..
+		SetAddress(addr.Address());
+		// When an IPv4 address intended to be a mask is converted
+		// to IPv6 address, the rest of IPv6 address bits must
+		// be set to all ones too.
+		u.iAddr32[0] = ~0U;
+		u.iAddr32[1] = ~0U;
+		u.iAddr32[2] = ~0U;
+		}
+	else
+		(TIp6Addr &)*this = addr.Ip6Address();
+	iScope = addr.Scope();
+	return KErrNone;
+	}
+
+TInt TIpAddress::SetAddress(const TSockAddr &aAddr)
+	/**
+	* Set address.
+	*
+	* @param aAddr The address.
+	* @return KErrNone
+	*/
+	{
+	const TInetAddr &addr = TInetAddr::Cast(aAddr);
+	if (addr.Family() == KAfInet)
+		// Loading IPv4 address requires some extra shuffles..
+		SetAddress(addr.Address());
+	else
+		{
+		(TIp6Addr &)*this = addr.Ip6Address();
+		}
+	iScope = addr.Scope();
+	return KErrNone;
+	}
+
+void TIpAddress::SetAddressNone()
+	/**
+	* Set address to none.
+	*
+	* Fill with zeroes. 
+	*/
+	{
+	(TIp6Addr &)*this = KInet6AddrNone;
+	iScope = 0;
+	}
+
+void TIpAddress::SetAddress(const TIp6Addr &aAddr, const TUint32 aScope)
+	/**
+	* Set address.
+	*
+	* @param aAddr The IPv6 address
+	* @param aScope The scope id.
+	*/
+	{
+	(TIp6Addr &)*this = aAddr;
+	iScope = aScope;
+	}
+
+void TIpAddress::SetAddress(const TUint32 aAddr)
+	/**
+	* Set address.
+	*
+	* Set address from IPv4 address.
+	*
+	* @param aAddr The IPv4 address
+	*/
+	{
+	u.iAddr32[0] = 0;
+	u.iAddr32[1] = 0;
+	u.iAddr8[8] = 0;
+	u.iAddr8[9] = 0;
+	u.iAddr8[10] = 0xff;
+	u.iAddr8[11] = 0xff;
+
+	u.iAddr8[12] = (TUint8)(aAddr >> 24);
+	u.iAddr8[13] = (TUint8)(aAddr >> 16);
+	u.iAddr8[14] = (TUint8)(aAddr >>  8);
+	u.iAddr8[15] = (TUint8)aAddr;
+	// The scope id is not set? should clear it?
+	}
+