/*
* Copyright (c) 2002-2009 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: Implements IPv6 bearer
*
*/
/*
* %version: 12 %
*/
#include <in_sock.h> // Header is retained, but in_sock.h is modified for ipv6
#include <in6_if.h>
#include <in_pkt.h>
#include <comms-infras/connectionsettings.h>
#include <nifmbuf.h>
#include "CLanIp6Bearer.h"
#include "WlanProto.h"
#include <comms-infras/es_protbinder.h>
#include "WlanProvision.h"
// From Wlan
#include <arp_hdr.h>
#include "am_debug.h"
#include "rwlmserver.h"
// Avoiding a warning in armv5 urel
#ifdef _DEBUG
_LIT(KCLanIp6BearerName,"EthWlan6");
#endif /* _DEBUG */
using namespace ESock;
// -----------------------------------------------------------------------------
// CLanIp6Bearer::ConstructL
// -----------------------------------------------------------------------------
//
void CLanIp6Bearer::ConstructL()
{
DEBUG("CLanIp6Bearer::ConstructL()");
iIfName.Format(_L("wlan6[0x%08x]"), this);
UpdateMACAddr();
// ReadCommDbLanSettingsL() moved from here to point when provisioning information received
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::Control
// -----------------------------------------------------------------------------
//
TInt CLanIp6Bearer::Control(TUint aLevel,TUint aName,TDes8& aOption)
{
DEBUG("CLanIp6Bearer::Control()");
if ((aLevel==KCOLInterface) || (aLevel==KSOLInterface))
{
switch (aName)
{
case KSoIfHardwareAddr:
{
typedef TPckgBuf<TSoIfHardwareAddr> THwAddr;
THwAddr& theHwAddrRef = static_cast<THwAddr&>(aOption);
theHwAddrRef().iHardwareAddr.SetFamily(1);
theHwAddrRef().iHardwareAddr.SetPort(KArpHarwareType_ETHERNET);
theHwAddrRef().iHardwareAddr.SetLength(sizeof(SSockAddr));
theHwAddrRef().iHardwareAddr.Append(Link()->MacAddress());
return KErrNone;
}
default:
break;
}
}
else if (aLevel==KSolInetIp)
{
switch (aName)
{
case KSoIp6LeaveGroup:
case KSoIp6JoinGroup:
{
// Convert multicast IPv6 address to multicast MAC address
TIp6Mreq& opt = *(TIp6Mreq*)aOption.Ptr();
TUint8* tmp = opt.iAddr.u.iAddr8;
TMacAddress mac;
mac.iMacAddress[0] = 0x33;
mac.iMacAddress[1] = 0x33;
mac.iMacAddress[2] = tmp[12];
mac.iMacAddress[3] = tmp[13];
mac.iMacAddress[4] = tmp[14];
mac.iMacAddress[5] = tmp[15];
TIp6Addr addr6 = opt.iAddr;
TInetAddr addr(addr6, 0);
TBuf<KCommsDbSvrMaxFieldLength> aa;
addr.Output(aa);
if(aName == KSoIp6JoinGroup)
DEBUG1("CLanIp6Bearer::Control() - joining multicast address:%S", &aa);
else
DEBUG1("CLanIp6Bearer::Control() - leaving multicast address:%S", &aa);
TInt ret = KErrNone;
RWLMServer wlmServer;
ret = wlmServer.Connect();
if( ret )
{
DEBUG1("CLanIp6Bearer::Control()- ERROR connecting RWlmServer: %d", ret);
return ret;
}
else
{
ret = wlmServer.ConfigureMulticast( aName, mac );
wlmServer.Close();
return KErrNone;
}
}
default:
break;
}
}
return KErrNotSupported;
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::ResolveMulticastIp6
// -----------------------------------------------------------------------------
//
void CLanIp6Bearer::ResolveMulticastIp6(TDes8& aDstAddr, RMBufChain& aPdu)
{
// We need to obtain the IPv6 header - i.e. the destination address.
// Octets 12 to 15 of the destination address, should be copied to
// Octets 2 to 5 of the aDstAddr.
// Octets 0 and 1 should be 0x3333.
DEBUG("CLanIp6Bearer::ResolveMulticastIp6()");
const TUint8 KMulticastPrefix[2] = {0x33, 0x33};
TIpv6Header* header = (TIpv6Header*)aPdu.First()->Next()->Ptr();
TUint ix;
for(ix=0; ix<2; ix++)
{
aDstAddr[ix]=KMulticastPrefix[ix];
}
for(ix=2; ix<6; ix++)
{
aDstAddr[ix]=header->iDestAddrB[ix+10];
}
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::Send
// -----------------------------------------------------------------------------
//
MLowerDataSender::TSendResult CLanIp6Bearer::Send(RMBufChain& aPdu)
{
// Check that we are allowed to send data
if (!Link()->BearerIsActive(this))
{
aPdu.Free();
return ESendBlocked;
}
RMBufPktInfo* info = RMBufPacket::PeekInfoInChain(aPdu);
TUint32 family = info->iDstAddr.Family();
__ASSERT_DEBUG(family!=KAfInet, User::Panic(KCLanIp6BearerName, 0));
TBuf8<KMACByteLength> destAddr;
destAddr.SetMax();
if(family == KAfInet6)
{
// Only multicast packets come here with address family KAfInet6,
// generate the ethernet address as described in RFC 2464, section 7.
ResolveMulticastIp6(destAddr, aPdu);
}
else if(family == 1)
{
// Address family == 1, ethernet address is found from info
destAddr.Copy(info->iDstAddr.Mid(sizeof(SSockAddr), KMACByteLength));
}
else
{
aPdu.Free();
return static_cast<MLowerDataSender::TSendResult>(1);
}
return static_cast<MLowerDataSender::TSendResult>(Link()->FrameSend(aPdu,destAddr,KIP6FrameType));
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::WantsProtocol
// -----------------------------------------------------------------------------
//
TBool CLanIp6Bearer::WantsProtocol(TUint16 aProtocolCode,const TUint8* aPayload)
{
DEBUG("CLanIp6Bearer::WantsProtocol()");
return (aProtocolCode==KIP6FrameType && (aPayload[0]>>4)==KIP6Protocol) ? ETrue:EFalse;
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::Process
// -----------------------------------------------------------------------------
//
void CLanIp6Bearer::Process(RMBufChain& aPdu)
{
DEBUG("CLanIp6Bearer::Process()");
if(iUpperReceiver)
{
iUpperReceiver->Process(aPdu);
}
else
{
aPdu.Free();
}
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::UpdateMACAddr
// -----------------------------------------------------------------------------
//
void CLanIp6Bearer::UpdateMACAddr()
{
DEBUG("CLanIp6Bearer::UpdateMACAddr()");
TE64Addr myEuMac;
myEuMac.SetAddrFromEUI48(Link()->MacAddress().Ptr());
iEuiMac.SetAddress(myEuMac);
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::ReadCommDbLanSettingsL
// -----------------------------------------------------------------------------
//
void CLanIp6Bearer::ReadCommDbLanSettingsL()
{
DEBUG("CLanIp6Bearer::ReadCommDbLanSettingsL()");
ASSERT(iProvision);
iPrimaryDns = iProvision->PrimaryDns();
iSecondaryDns = iProvision->SecondaryDns();
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::GetConfig
// -----------------------------------------------------------------------------
//
TInt CLanIp6Bearer::GetConfig(TBinderConfig& aConfig)
{
DEBUG("CLanIp6Bearer::GetConfig()");
TBinderConfig6& config = static_cast<TBinderConfig6&>(aConfig);
config.iFamily = KAfInet6;
config.iInfo.iFeatures = KIfNeedsND | KIfCanMulticast;
config.iInfo.iMtu = Link()->Mtu();
config.iInfo.iRMtu = Link()->Mtu();
config.iInfo.iSpeedMetric = Link()->SpeedMetric();
TEui64Addr& localId = TEui64Addr::Cast(config.iLocalId);
localId = iEuiMac;
// If required, configure static DNS addresses
if (!iPrimaryDns.IsUnspecified())
{
config.iNameSer1.SetAddress(iPrimaryDns);
if (!iSecondaryDns.IsUnspecified())
config.iNameSer2.SetAddress(iSecondaryDns);
}
return KErrNone;
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::ProtocolName
// -----------------------------------------------------------------------------
//
const TDesC8& CLanIp6Bearer::ProtocolName() const
/**
Return the protocol name of this bearer
Called from CLANLinkCommon
*/
{
DEBUG("CLanIp6Bearer::ProtocolName()");
_LIT8(KProtocolName, "ip6");
return KProtocolName();
}
// -----------------------------------------------------------------------------
// CLanIp6Bearer::SetProvisionL
// -----------------------------------------------------------------------------
//
void CLanIp6Bearer::SetProvisionL(const Meta::SMetaData* aProvision)
{
DEBUG("CLanIp6Bearer::SetProvisionL()");
if (iProvision == NULL)
{
iProvision = static_cast<const TLanIp6Provision*>(aProvision);
ReadCommDbLanSettingsL();
}
}