--- a/telephonyprotocols/rawipnif/version1/src/IPv6ProtocolIf.cpp Mon May 03 13:37:20 2010 +0300
+++ b/telephonyprotocols/rawipnif/version1/src/IPv6ProtocolIf.cpp Thu May 06 15:10:38 2010 +0100
@@ -1,696 +1,696 @@
-// 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:
-// This file implements the CIPv6ProtocolIf class, which handles the transmission
-// of IPv6 data to and from the TCP/IP stack.
-//
-//
-
-/**
- @file
-*/
-
-#include <e32hal.h> // UserHal::MachineInfo()
-#include <etelpckt.h>
-#include <in_iface.h>
-#include <in6_if.h>
-#include "RawIPNifMain.h"
-#include "IPv6ProtocolIf.h"
-#ifdef WCDMA_STUB
-#include <UMTSNifControlIf.h>
-#endif
-#define LOG_IP_ADDRESS(desc,addr) _LOG_L2C5(_L8(" " desc " = %d:%d:%d:%d from context"), \
- addr[3], addr[2], addr[1], addr[0]);
-
-CIPv6ProtocolIf::CIPv6ProtocolIf(CRawIPNifMain& aNifMain, CBttLogger* aTheLogger)
-/**
- * Constructor
- */
- : CProtocolIfBase(aNifMain,aTheLogger),
- iTheLogger(aTheLogger),
- iSpeedMetric(KDefaultSpeedMetric)
- {
- }
-
-CIPv6ProtocolIf::~CIPv6ProtocolIf()
-/**
- * Destructor
- */
- {
- }
-
-void CIPv6ProtocolIf::BindL(TAny* aId)
-/**
- * Binds protocol to the Nif
- *
- * @param aId A point the the protocol(TCP/IP)
- */
- {
- _LOG_L1C2(_L8("CIPv6ProtocolIf::BindL [aId=%X]"), aId);
-
- CProtocolIfBase::BindL(aId); // Call the superclass's method.
- iNotify = iNifMain.Notify();
- }
-
-TInt CIPv6ProtocolIf::Control(TUint aLevel, TUint aName, TDes8& aOption,
- TAny* /*aSource*/)
-/**
- * The main function called by the TCP/IP protocol to control the interface.
- * Can perform a variety of general IP tasks (such as getting IP config)
- * and "3G" specific tasks (such as deleting the context).
- *
- * @param aLevel The level of the interface to control - always KSOLInterface
- * @param aName The command to perform
- * @param aOption Data to be input/output as a result of the command
- * @param aSource The source of the command (unused)
- * @return Standard error codes
- */
- {
- _LOG_L1C3(_L8("CIPv6ProtocolIf::Control [aLevel=%d, aName=%d]"),
- aLevel, aName);
-
- if (aLevel == KSOLInterface)
- {
- switch (aName)
- {
- // General IP configuration commands are below this point.
-
- case KSoIfInfo6:
- // Gets information about the interface, such as name and MTU.
- return WriteIfInfo(aOption);
-
- case KSoIfConfig:
- // Gets interface configuration, eg. IP address and DNS servers.
- return WriteIfConfig(aOption);
-
- case KSoIfGetConnectionInfo:
- // Gets IAP and network information.
- return WriteConnectionInfo(aOption);
-
- case KSoIfHardwareAddr:
- // unsupported because we don't have a h/w address
- case KSoIfCompareAddr:
- // this never actually appears to be called
- break;
-
- // 3G-specific configuration commands are below this point.
-#ifdef WCDMA_STUB
- case KRegisterEventHandler:
- // Raw IP NIF Events are not supported
- case KContextSetEvents:
- // Raw IP NIF Events are not supported
- break;
-
- case KContextCreate:
- // We don't support creating new secondary contexts.
- break;
-
- case KContextDelete:
- // Deletes the primary PDP context. This will shut down the Nif.
- return DeleteContext(aOption);
-
- case KContextActivate:
- // If the IPv6 interface is up, then the context will already have
- // been activated. So this command should fail with
- // KErrAlreadyExists
- {
- TUint8* ptr = CONST_CAST(TUint8*, aOption.Ptr());
- TContextParameters* contextParams =
- REINTERPRET_CAST(TContextParameters*, ptr);
-
- if (contextParams->iContextInfo.iContextId !=
- STATIC_CAST(TInt8, GetNifMain().GetBcaController()->Nsapi()))
- {
- contextParams->iReasonCode = KErrNotFound;
- }
- else
- {
- contextParams->iContextInfo.iStatus =
- GetNifMain().GetContextStatus();
- contextParams->iReasonCode = KErrAlreadyExists;
- }
- return KErrNone;
- }
-
- case KNifSetDefaultQoS:
- case KContextQoSSet:
- // Setting the QoS is meaningless over GPRS, so we just return that
- // we don't support these operations.
- break;
-
- case KContextTFTModify:
- // As we only have one primary context, we don't support anything
- // to do with traffic flow templates, which are used by secondary
- // contexts.
- break;
-
- case KContextModifyActive:
- // This command is only valid aftermodifying TFT/QoS parameters.
- // As we don't support any of these operations,
- // this command is never valid.
- break;
-#endif
- default:
- break;
- }
- }
- return KErrNotSupported;
- }
-
-TInt CIPv6ProtocolIf::WriteIfConfig(TDes8& aIfConfig)
-/**
- * Writes the configuration of the interface (eg. IP address, DNS servers)
- * into the supplied descriptor.
- *
- * @param aIfConfig Will contain the interface configuration
- * @return KErrNotSupported if an incorrect structure is passed,
- * otherwise KErrNone
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::WriteIfConfig"));
- __ASSERT_DEBUG((TUint)aIfConfig.MaxLength() >= sizeof (TSoInet6IfConfig), User::Panic(KIPv6ProtocolIfName, 0));
-
- if ((TUint)aIfConfig.MaxLength() < sizeof(TSoInet6IfConfig))
- {
- return KErrArgument;
- }
-
- TUint8* ptr = CONST_CAST(TUint8*, aIfConfig.Ptr());
- TSoInet6IfConfig* config = REINTERPRET_CAST(TSoInet6IfConfig*, ptr);
-
- TEui64Addr& localId = TEui64Addr::Cast(config->iLocalId);
- localId = iSettings.iLocalIfId;
-
- // If required, configure static DNS addresses
- if (!iSettings.iPrimaryDns.IsUnspecified())
- {
- config->iNameSer1.SetAddress(iSettings.iPrimaryDns);
- if (!iSettings.iSecondaryDns.IsUnspecified())
- config->iNameSer2.SetAddress(iSettings.iSecondaryDns);
- }
-
- config->idPaddingBits = 0;
-
- return KErrNone;
- }
-
-TInt CIPv6ProtocolIf::WriteIfInfo(TDes8& aIfInfo)
-/**
- * Writes information about the interface into the supplied descriptor.
- *
- * @param aIfInfo Will contain the interface information
- * @return KErrArgument if an incorrect structure is passed, otherwise KErrNone
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::WriteIfInfo"));
- __ASSERT_DEBUG((TUint)aIfInfo.MaxLength() >= sizeof (TSoIfInfo6), User::Panic(KIPv6ProtocolIfName, 0));
-
- if ((TUint)aIfInfo.MaxLength() < sizeof(TSoIfInfo6))
- {
- return KErrArgument;
- }
-
- TSoIfInfo6* info = (TSoIfInfo6*) aIfInfo.Ptr();
- info->iFeatures = KIfCanBroadcast | KIfCanMulticast;
- info->iSpeedMetric = iSpeedMetric;
- info->iMtu = KDefaultMtu;
- info->iRMtu = KDefaultMtu;
- WriteIfName(info->iName);
-
- return KErrNone;
- }
-
-TInt CIPv6ProtocolIf::WriteConnectionInfo(TDes8& aConnectionInfo)
-/**
- * Writes information about the IAP and network we're associated with. This
- * is used to route data in a multi-homing environment.
- *
- * @param aConnectionInfo Will contain the connection information
- * @return Standard CommDB error codes
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::WriteConnectionInfo"));
-
- TSoIfConnectionInfo* connectionInfo =
- (TSoIfConnectionInfo*) aConnectionInfo.Ptr();
-
- TInt err;
- // Append the 2 commdb filed into this descriptor
- TBuf<2*KCommsDbSvrMaxColumnNameLength+1> fieldName;
-
- fieldName.Copy(TPtrC(IAP));
- fieldName.Append(KSlashChar);
- fieldName.Append(TPtrC(COMMDB_ID));
- err = GetNifMain().GetAgent()->ReadInt(fieldName, connectionInfo->iIAPId);
- if (err != KErrNone)
- {
- return err;
- }
-
- fieldName.Copy(TPtrC(IAP));
- fieldName.Append(KSlashChar);
- fieldName.Append(TPtrC(IAP_NETWORK));
- err = GetNifMain().GetAgent()->ReadInt(fieldName, connectionInfo->iNetworkId);
- if (err != KErrNone)
- {
- return err;
- }
-
- return KErrNone;
- }
-#ifdef WCDMA_STUB
-
-TInt CIPv6ProtocolIf::DeleteContext(TDes8& aContextParameters)
-/**
- * Deletes a context. As the NIF is responsible for one primary context,
- * this is equivalent to closing down the NIF.
- *
- * @param aContextParameters Parameters of the context to delete
- * @return KErrArgument if an incorrect structure is passed, otherwise KErrNone
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::DeleteContext"));
-
- if (aContextParameters.Length() != sizeof(TContextParameters))
- {
- return KErrArgument;
- }
-
- TUint8* ptr = CONST_CAST(TUint8*, aContextParameters.Ptr());
- TContextParameters* params = REINTERPRET_CAST(TContextParameters*, ptr);
-
- if (params->iContextInfo.iContextId !=
- STATIC_CAST(TInt8, GetNifMain().GetBcaController()->Nsapi()))
- {
- params->iReasonCode = KErrBadName;
- }
- else
- {
- params->iReasonCode = KErrNone;
- GetNifMain().Stop(KErrNone, MNifIfNotify::EDisconnect);
- }
-
- return KErrNone;
- }
-
-#endif
-
-void CIPv6ProtocolIf::ReadCommDbGprsSettingsL()
-/**
- * Reads GPRS IP settings from CommDB via the agent.
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::ReadCommDbGprsSettings"));
-
- // Read he DNS addresses..
- ReadIPv6SettingL(TPtrC(GPRS_IP6_NAME_SERVER1), iSettings.iPrimaryDns);
- ReadIPv6SettingL(TPtrC(GPRS_IP6_NAME_SERVER2), iSettings.iSecondaryDns);
- // Read whether to get the DNS addresses from the server.
- _BTT_LEAVEIFERROR(GetNifMain().GetAgent()->ReadBool(
- TPtrC(GPRS_IP6_DNS_ADDR_FROM_SERVER),
- iSettings.iGetDnsFromServer));
-
- // Read whether to get IPv4 address from the server
- // This is only needed for the integration tests. If it's true then
- // the IPv4 address will be used to build up the IPv6 address.
- _BTT_LEAVEIFERROR(GetNifMain().GetAgent()->ReadBool(
- TPtrC(GPRS_IP_ADDR_FROM_SERVER),
- iSettings.iGetIpFromServer));
-
-
- if (iSettings.iGetIpFromServer == EFalse)
- {
- // Sets the IPv6 Link-local address from IpAddr.
- // LocalId is derived from IpAddr and it's further used to set the Link-local
- // address elsewhere by adding a prefix (FE80::) in front.
- // For IpAddr: 192.168.1.1, link-local address will be FE80::C0A8:101.
- TUint32 ipAddr;
- ReadIPv4SettingL(TPtrC(GPRS_IP_ADDR), ipAddr);
- const TUint8 constantId[8] = { 0, 0, 0, 0,
- ipAddr >> 24, (ipAddr >> 16) & 0xFF,
- (ipAddr >> 8) & 0xFF, ipAddr & 0xFF };
- iSettings.iLocalIfId.SetAddr(constantId, sizeof (constantId));
- }
- else
- {
-
- //
- // Use the 64 bit id of MARM machines as our interface id
- //
- TMachineInfoV1Buf machineInfo;
- UserHal::MachineInfo(machineInfo);
- iSettings.iLocalIfId.SetAddr(machineInfo().iMachineUniqueId);
- iSettings.iLocalIfId.SetUniversalBit(0);
- //
- // In WINS environment the id is zero which is no-no
- //
- if (iSettings.iLocalIfId.IsZero())
- {
- iSettings.iLocalIfId.SetAddrRandomNZ();
- }
-
- }
- }
-
-void CIPv6ProtocolIf::UpdateContextConfigL(const
- RPacketContext::TContextConfigGPRS&
- aConfig)
-/**
- * Called when the context has been activated to set our IP address and get
- * any other required settings from CommDB.
- *
- * @param aConfig The new context config
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::UpdateContextConfig"));
-
- // Get the settings which are stored in CommDB.
- ReadCommDbGprsSettingsL();
-
- // Get our IP address from the GPRS context config.
- TInetAddr address;
-
- TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
- tempAddr.Copy(aConfig.iPdpAddress);
- TInt ret = address.Input(tempAddr);
-
- // We've got our IP address! Let's save it.
- if (ret == KErrNone)
- {
- iSettings.iLocalAddr = address.Ip6Address();
- LOG_IP_ADDRESS("Got local IP address", iSettings.iLocalAddr);
- }
- else
- {
- _LOG_L2C2(_L8("Couldn't get IP address from GPRS config (err: %d)"),
- ret);
-
- // Don't leave on this error: we may still be OK if we read some
- // settings from CommDB.
- }
-
- // @todo - is this correct. We can only get the DNS addresses
- // from the TSY using the iProtocolConfigOption data. Yet a client could
- // access those DNS config details without knowing about the state of the
- // iSettings.iGetDnsFromServer flag.
-
- if ((iSettings.iGetDnsFromServer) ||
- ((iSettings.iPrimaryDns.IsUnspecified()) &&
- (iSettings.iSecondaryDns.IsUnspecified())) )
- {
- TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
- tempAddr.Copy(aConfig.iProtocolConfigOption.iDnsAddresses.iPrimaryDns);
- ret = address.Input(tempAddr);
-
- if (ret == KErrNone)
- {
- iSettings.iPrimaryDns = address.Ip6Address();
- LOG_IP_ADDRESS("Got primary DNS", iSettings.iPrimaryDns);
- }
- else
- {
- _LOG_L2C2(_L8("Couldn't get primary DNS address from GPRS config (err: %d)"),
- ret);
-
- // Don't leave on this error: we may still be OK if we read some
- // settings from CommDB.
- }
-
- tempAddr.Copy(aConfig.iProtocolConfigOption.iDnsAddresses.iSecondaryDns);
- ret = address.Input(tempAddr);
-
- if (ret == KErrNone)
- {
- iSettings.iSecondaryDns = address.Ip6Address();
- LOG_IP_ADDRESS("Got secondary DNS", iSettings.iPrimaryDns);
- }
- else
- {
- _LOG_L2C2(_L8("Couldn't get secondary DNS address from GPRS config (err: %d)"),
- ret);
-
- // Don't leave on this error: we may still be OK if we read some
- // settings from CommDB.
- }
- }
- else
- {
- LOG_IP_ADDRESS("Using CommDB DNS address - Primary ", iSettings.iPrimaryDns);
- LOG_IP_ADDRESS(" - Secondary ", iSettings.iSecondaryDns);
- }
- }
-
-void CIPv6ProtocolIf::UpdateConnectionSpeed(TUint aConnectionSpeed)
-/**
- * Sets the speed metric to return to TCP/IP, based on what the TSY tells us.
- *
- * @param aConnectionSpeed Our connection speed
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::UpdateConnectionSpeed"));
-
- iSpeedMetric = aConnectionSpeed;
- }
-
-void CIPv6ProtocolIf::ReadIPv4SettingL(const TDesC& aFieldName,
- TUint32& aIpAddr)
-/**
- * Reads an IPv4 address from CommDB, via the TRP agent. It leaves if an error
- * other than KErrNotFound occurs.
- *
- * @param aFieldName The name of the field to read
- * @param aIpAddr Will contain the IP address
- */
- {
-#ifdef __BTT_LOGGING__
- TBuf8<256> debugBuffer;
- debugBuffer.Copy(aFieldName);
- _LOG_L1C2(_L8("CIPv6ProtocolIf::ReadIp4Setting [aFieldName=%S]"),
- &debugBuffer);
-#endif
-
- TBuf<KCommsDbSvrMaxFieldLength> name;
- TInetAddr ip4Addr;
-
- TInt ret = GetNifMain().GetAgent()->ReadDes(aFieldName, name);
-
- if (ret == KErrNone)
- {
- // We've successfully read an IP address, so convert it into a number.
- ip4Addr.Input(name);
- aIpAddr = ip4Addr.Address();
- }
- else
- {
- // We couldn't get the IP address, so set it to 0.0.0.0. Note that we
- // only leave here if we got a more serious error than "not found".
- aIpAddr = 0;
- if (ret != KErrNotFound)
- {
- _BTT_LEAVEIFERROR(ret);
- }
- }
- }
-
-void CIPv6ProtocolIf::ReadIPv6SettingL(const TDesC& aFieldName,
- TIp6Addr& aIpAddr)
-/**
- * Reads an IPv6 address from CommDB, via the TRP agent. It leaves if an error
- * other than KErrNotFound occurs.
- *
- * @param aFieldName The name of the field to read
- * @param aIpAddr Will contain the IP address
- */
- {
-#ifdef __BTT_LOGGING__
- TBuf8<256> debugBuffer;
- debugBuffer.Copy(aFieldName);
- _LOG_L1C2(_L8("CIPv6ProtocolIf::ReadIp6Setting [aFieldName=%S]"),
- &debugBuffer);
-#endif
-
- TBuf<KCommsDbSvrMaxFieldLength> name;
- TInetAddr ip6Addr;
-
- TInt ret = GetNifMain().GetAgent()->ReadDes(aFieldName, name);
-
- if (ret == KErrNone)
- {
- // We've successfully read an IP address, so convert it into a number.
- ip6Addr.Input(name);
- aIpAddr = ip6Addr.Ip6Address();
- }
- else
- {
- // We couldn't get the IP address, so set it to 0.0.0.0. Note that we
- // only leave here if we got a more serious error than "not found".
- aIpAddr = KInet6AddrNone;
- if (ret != KErrNotFound)
- {
- _BTT_LEAVEIFERROR(ret);
- }
- }
- }
-
-TInt CIPv6ProtocolIf::Send(RMBufChain& aPdu, TAny* aSource)
-/**
- * Called by the protocol to send an outgoing IP packet to the network.
- *
- * @param aPdu The outgoing packet
- * @param aSource The source of the packet
- * @return Standard error codes
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::Send"));
-
-#ifdef __BTT_LOGGING__
- LogPacket(aPdu);
-#endif
-
- // Return <0: an error occurred
- // Return 0: no error, but don't send any more packets
-
- return GetNifMain().SendPacket(aPdu, aSource, KIp6FrameType);
- }
-
-void CIPv6ProtocolIf::Info(TNifIfInfo& aInfo) const
-/**
- * Called by the protocol to get information about the NIF.
- *
- * @param aInfo Will contain NIF information
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::Info"));
-
- // The parent class sets everything except the name...
- CProtocolIfBase::Info(aInfo);
- // ...which we set here.
- WriteIfName(aInfo.iName);
- }
-
-TInt CIPv6ProtocolIf::Notification(TAgentToNifEventType /*aEvent*/,
- void* /*aInfo*/)
-/**
- * The Nif will ignore any notification sent
- *
- * @param aEvent Not used
- * @param aInfo Not used
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::Notification"));
-
- return KErrNone;
- }
-
-void CIPv6ProtocolIf::StartSending(CProtocolBase* aProtocol)
-/**
- * Indicates to the protocol layer that the NIF is ready to send packets.
- *
- * @param aProtocol A pointer to a protocol
- */
- {
- _LOG_L1C2(_L8("CIPv6ProtocolIf::StartSending [aProtocol=%X]"), aProtocol);
-
- CProtocolIfBase::StartSending(aProtocol);
- }
-
-TBool CIPv6ProtocolIf::WantsProtocol(TUint16 aProtocolCode)
-/**
- * Indicates the type of protocol implemented by this class.
- *
- * @param aProtocolCode The protocol type
- */
- {
- _LOG_L1C2(_L8("CIPv6ProtocolIf::WantsProtocol [aProtocolCode=%X]"),
- aProtocolCode);
-
-#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS
- return ((aProtocolCode & 0x00FF) == KIp6FrameType);
-#else
- (void) aProtocolCode; // disable compiler warning
- return ETrue;
-#endif // RAWIP_HEADER_APPENDED_TO_PACKETS
- }
-
-void CIPv6ProtocolIf::Process(RMBufChain& aPdu)
-/**
- * Called when an incoming IP packet has arrived. Send packets up to the
- * TCP/IP stack.
- *
- * @param aPdu The incoming packet
- */
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::Process"));
-
-#ifdef __BTT_LOGGING__
- LogPacket(aPdu);
-#endif
-
- // Pass incoming packets up to the protocol, unless it hasn't
- // been bound yet.
- if (iProtocol)
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf: Packet Sent to TCP/IP Protocol!!!"));
- iProtocol->Process(aPdu, reinterpret_cast<CProtocolBase*>(this));
- }
- else
- {
- _LOG_L2C1(_L8("WARNING: dumping incoming packet, no protocol bound"));
- aPdu.Free();
- }
- }
-
-#ifdef __BTT_LOGGING__
-void CIPv6ProtocolIf::LogPacket(const RMBufChain& aPacket)
-/**
-* Logs packet information into log file.
-*
-* @param aPacket The packet
-*/
- {
- _LOG_L1C1(_L8("CIPv6ProtocolIf::LogPacket"));
-
- TInt mBufLength = aPacket.Length() - aPacket.First()->Length();
-
- _LOG_L3C2(_L8("Analysis of %d byte packet:"), mBufLength);
-
- //Note: All the constants used on this method are a pragmatic guess of the
- //IP header fields. The only porpose of this method is logging.
-
- if (mBufLength < 40)
- {
- _LOG_L3C2(_L8(" -doesn't appear to be a valid IPv6 packet (length=%d)")
- , mBufLength);
- return;
- }
-
- // Get a pointer to the packet's payload.
- const TUint8* payloadPtr = aPacket.First()->Next()->Ptr();
-
- if ((payloadPtr[0] & 0xF0) != 0x60)
- {
- _LOG_L3C2(_L8(" - doesn't appear to be an IPv6 packet (version=0x%X)"),
- (payloadPtr[0] & 0xF0) >> 4);
- return;
- }
-
- _LOG_L3C2(_L8(" - traffic class: 0x%X"),
- ((payloadPtr[0] & 0xF) << 4) | ((payloadPtr[1] & 0xF0) >> 4));
- _LOG_L3C2(_L8(" - flow label: 0x%X"),
- ((payloadPtr[1] & 0x0F) << 16) | (payloadPtr[2] << 8) | payloadPtr[3]);
- _LOG_L3C2(_L8(" - payload length: 0x%X"),
- (payloadPtr[4] << 16) | payloadPtr[5]);
- _LOG_L3C2(_L8(" - next header: 0x%08X"), payloadPtr[6]);
- _LOG_L3C2(_L8(" - hop limit: 0x%08X"), payloadPtr[7]);
- }
-#endif // __BTT_LOGGING__
+// 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:
+// This file implements the CIPv6ProtocolIf class, which handles the transmission
+// of IPv6 data to and from the TCP/IP stack.
+//
+//
+
+/**
+ @file
+*/
+
+#include <e32hal.h> // UserHal::MachineInfo()
+#include <etelpckt.h>
+#include <in_iface.h>
+#include <in6_if.h>
+#include "RawIPNifMain.h"
+#include "IPv6ProtocolIf.h"
+#ifdef WCDMA_STUB
+#include <UMTSNifControlIf.h>
+#endif
+#define LOG_IP_ADDRESS(desc,addr) _LOG_L2C5(_L8(" " desc " = %d:%d:%d:%d from context"), \
+ addr[3], addr[2], addr[1], addr[0]);
+
+CIPv6ProtocolIf::CIPv6ProtocolIf(CRawIPNifMain& aNifMain, CBttLogger* aTheLogger)
+/**
+ * Constructor
+ */
+ : CProtocolIfBase(aNifMain,aTheLogger),
+ iTheLogger(aTheLogger),
+ iSpeedMetric(KDefaultSpeedMetric)
+ {
+ }
+
+CIPv6ProtocolIf::~CIPv6ProtocolIf()
+/**
+ * Destructor
+ */
+ {
+ }
+
+void CIPv6ProtocolIf::BindL(TAny* aId)
+/**
+ * Binds protocol to the Nif
+ *
+ * @param aId A point the the protocol(TCP/IP)
+ */
+ {
+ _LOG_L1C2(_L8("CIPv6ProtocolIf::BindL [aId=%X]"), aId);
+
+ CProtocolIfBase::BindL(aId); // Call the superclass's method.
+ iNotify = iNifMain.Notify();
+ }
+
+TInt CIPv6ProtocolIf::Control(TUint aLevel, TUint aName, TDes8& aOption,
+ TAny* /*aSource*/)
+/**
+ * The main function called by the TCP/IP protocol to control the interface.
+ * Can perform a variety of general IP tasks (such as getting IP config)
+ * and "3G" specific tasks (such as deleting the context).
+ *
+ * @param aLevel The level of the interface to control - always KSOLInterface
+ * @param aName The command to perform
+ * @param aOption Data to be input/output as a result of the command
+ * @param aSource The source of the command (unused)
+ * @return Standard error codes
+ */
+ {
+ _LOG_L1C3(_L8("CIPv6ProtocolIf::Control [aLevel=%d, aName=%d]"),
+ aLevel, aName);
+
+ if (aLevel == KSOLInterface)
+ {
+ switch (aName)
+ {
+ // General IP configuration commands are below this point.
+
+ case KSoIfInfo6:
+ // Gets information about the interface, such as name and MTU.
+ return WriteIfInfo(aOption);
+
+ case KSoIfConfig:
+ // Gets interface configuration, eg. IP address and DNS servers.
+ return WriteIfConfig(aOption);
+
+ case KSoIfGetConnectionInfo:
+ // Gets IAP and network information.
+ return WriteConnectionInfo(aOption);
+
+ case KSoIfHardwareAddr:
+ // unsupported because we don't have a h/w address
+ case KSoIfCompareAddr:
+ // this never actually appears to be called
+ break;
+
+ // 3G-specific configuration commands are below this point.
+#ifdef WCDMA_STUB
+ case KRegisterEventHandler:
+ // Raw IP NIF Events are not supported
+ case KContextSetEvents:
+ // Raw IP NIF Events are not supported
+ break;
+
+ case KContextCreate:
+ // We don't support creating new secondary contexts.
+ break;
+
+ case KContextDelete:
+ // Deletes the primary PDP context. This will shut down the Nif.
+ return DeleteContext(aOption);
+
+ case KContextActivate:
+ // If the IPv6 interface is up, then the context will already have
+ // been activated. So this command should fail with
+ // KErrAlreadyExists
+ {
+ TUint8* ptr = CONST_CAST(TUint8*, aOption.Ptr());
+ TContextParameters* contextParams =
+ REINTERPRET_CAST(TContextParameters*, ptr);
+
+ if (contextParams->iContextInfo.iContextId !=
+ STATIC_CAST(TInt8, GetNifMain().GetBcaController()->Nsapi()))
+ {
+ contextParams->iReasonCode = KErrNotFound;
+ }
+ else
+ {
+ contextParams->iContextInfo.iStatus =
+ GetNifMain().GetContextStatus();
+ contextParams->iReasonCode = KErrAlreadyExists;
+ }
+ return KErrNone;
+ }
+
+ case KNifSetDefaultQoS:
+ case KContextQoSSet:
+ // Setting the QoS is meaningless over GPRS, so we just return that
+ // we don't support these operations.
+ break;
+
+ case KContextTFTModify:
+ // As we only have one primary context, we don't support anything
+ // to do with traffic flow templates, which are used by secondary
+ // contexts.
+ break;
+
+ case KContextModifyActive:
+ // This command is only valid aftermodifying TFT/QoS parameters.
+ // As we don't support any of these operations,
+ // this command is never valid.
+ break;
+#endif
+ default:
+ break;
+ }
+ }
+ return KErrNotSupported;
+ }
+
+TInt CIPv6ProtocolIf::WriteIfConfig(TDes8& aIfConfig)
+/**
+ * Writes the configuration of the interface (eg. IP address, DNS servers)
+ * into the supplied descriptor.
+ *
+ * @param aIfConfig Will contain the interface configuration
+ * @return KErrNotSupported if an incorrect structure is passed,
+ * otherwise KErrNone
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::WriteIfConfig"));
+ __ASSERT_DEBUG((TUint)aIfConfig.MaxLength() >= sizeof (TSoInet6IfConfig), User::Panic(KIPv6ProtocolIfName, 0));
+
+ if ((TUint)aIfConfig.MaxLength() < sizeof(TSoInet6IfConfig))
+ {
+ return KErrArgument;
+ }
+
+ TUint8* ptr = CONST_CAST(TUint8*, aIfConfig.Ptr());
+ TSoInet6IfConfig* config = REINTERPRET_CAST(TSoInet6IfConfig*, ptr);
+
+ TEui64Addr& localId = TEui64Addr::Cast(config->iLocalId);
+ localId = iSettings.iLocalIfId;
+
+ // If required, configure static DNS addresses
+ if (!iSettings.iPrimaryDns.IsUnspecified())
+ {
+ config->iNameSer1.SetAddress(iSettings.iPrimaryDns);
+ if (!iSettings.iSecondaryDns.IsUnspecified())
+ config->iNameSer2.SetAddress(iSettings.iSecondaryDns);
+ }
+
+ config->idPaddingBits = 0;
+
+ return KErrNone;
+ }
+
+TInt CIPv6ProtocolIf::WriteIfInfo(TDes8& aIfInfo)
+/**
+ * Writes information about the interface into the supplied descriptor.
+ *
+ * @param aIfInfo Will contain the interface information
+ * @return KErrArgument if an incorrect structure is passed, otherwise KErrNone
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::WriteIfInfo"));
+ __ASSERT_DEBUG((TUint)aIfInfo.MaxLength() >= sizeof (TSoIfInfo6), User::Panic(KIPv6ProtocolIfName, 0));
+
+ if ((TUint)aIfInfo.MaxLength() < sizeof(TSoIfInfo6))
+ {
+ return KErrArgument;
+ }
+
+ TSoIfInfo6* info = (TSoIfInfo6*) aIfInfo.Ptr();
+ info->iFeatures = KIfCanBroadcast | KIfCanMulticast;
+ info->iSpeedMetric = iSpeedMetric;
+ info->iMtu = KDefaultMtu;
+ info->iRMtu = KDefaultMtu;
+ WriteIfName(info->iName);
+
+ return KErrNone;
+ }
+
+TInt CIPv6ProtocolIf::WriteConnectionInfo(TDes8& aConnectionInfo)
+/**
+ * Writes information about the IAP and network we're associated with. This
+ * is used to route data in a multi-homing environment.
+ *
+ * @param aConnectionInfo Will contain the connection information
+ * @return Standard CommDB error codes
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::WriteConnectionInfo"));
+
+ TSoIfConnectionInfo* connectionInfo =
+ (TSoIfConnectionInfo*) aConnectionInfo.Ptr();
+
+ TInt err;
+ // Append the 2 commdb filed into this descriptor
+ TBuf<2*KCommsDbSvrMaxColumnNameLength+1> fieldName;
+
+ fieldName.Copy(TPtrC(IAP));
+ fieldName.Append(KSlashChar);
+ fieldName.Append(TPtrC(COMMDB_ID));
+ err = GetNifMain().GetAgent()->ReadInt(fieldName, connectionInfo->iIAPId);
+ if (err != KErrNone)
+ {
+ return err;
+ }
+
+ fieldName.Copy(TPtrC(IAP));
+ fieldName.Append(KSlashChar);
+ fieldName.Append(TPtrC(IAP_NETWORK));
+ err = GetNifMain().GetAgent()->ReadInt(fieldName, connectionInfo->iNetworkId);
+ if (err != KErrNone)
+ {
+ return err;
+ }
+
+ return KErrNone;
+ }
+#ifdef WCDMA_STUB
+
+TInt CIPv6ProtocolIf::DeleteContext(TDes8& aContextParameters)
+/**
+ * Deletes a context. As the NIF is responsible for one primary context,
+ * this is equivalent to closing down the NIF.
+ *
+ * @param aContextParameters Parameters of the context to delete
+ * @return KErrArgument if an incorrect structure is passed, otherwise KErrNone
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::DeleteContext"));
+
+ if (aContextParameters.Length() != sizeof(TContextParameters))
+ {
+ return KErrArgument;
+ }
+
+ TUint8* ptr = CONST_CAST(TUint8*, aContextParameters.Ptr());
+ TContextParameters* params = REINTERPRET_CAST(TContextParameters*, ptr);
+
+ if (params->iContextInfo.iContextId !=
+ STATIC_CAST(TInt8, GetNifMain().GetBcaController()->Nsapi()))
+ {
+ params->iReasonCode = KErrBadName;
+ }
+ else
+ {
+ params->iReasonCode = KErrNone;
+ GetNifMain().Stop(KErrNone, MNifIfNotify::EDisconnect);
+ }
+
+ return KErrNone;
+ }
+
+#endif
+
+void CIPv6ProtocolIf::ReadCommDbGprsSettingsL()
+/**
+ * Reads GPRS IP settings from CommDB via the agent.
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::ReadCommDbGprsSettings"));
+
+ // Read he DNS addresses..
+ ReadIPv6SettingL(TPtrC(GPRS_IP6_NAME_SERVER1), iSettings.iPrimaryDns);
+ ReadIPv6SettingL(TPtrC(GPRS_IP6_NAME_SERVER2), iSettings.iSecondaryDns);
+ // Read whether to get the DNS addresses from the server.
+ _BTT_LEAVEIFERROR(GetNifMain().GetAgent()->ReadBool(
+ TPtrC(GPRS_IP6_DNS_ADDR_FROM_SERVER),
+ iSettings.iGetDnsFromServer));
+
+ // Read whether to get IPv4 address from the server
+ // This is only needed for the integration tests. If it's true then
+ // the IPv4 address will be used to build up the IPv6 address.
+ _BTT_LEAVEIFERROR(GetNifMain().GetAgent()->ReadBool(
+ TPtrC(GPRS_IP_ADDR_FROM_SERVER),
+ iSettings.iGetIpFromServer));
+
+
+ if (iSettings.iGetIpFromServer == EFalse)
+ {
+ // Sets the IPv6 Link-local address from IpAddr.
+ // LocalId is derived from IpAddr and it's further used to set the Link-local
+ // address elsewhere by adding a prefix (FE80::) in front.
+ // For IpAddr: 192.168.1.1, link-local address will be FE80::C0A8:101.
+ TUint32 ipAddr;
+ ReadIPv4SettingL(TPtrC(GPRS_IP_ADDR), ipAddr);
+ const TUint8 constantId[8] = { 0, 0, 0, 0,
+ ipAddr >> 24, (ipAddr >> 16) & 0xFF,
+ (ipAddr >> 8) & 0xFF, ipAddr & 0xFF };
+ iSettings.iLocalIfId.SetAddr(constantId, sizeof (constantId));
+ }
+ else
+ {
+
+ //
+ // Use the 64 bit id of MARM machines as our interface id
+ //
+ TMachineInfoV1Buf machineInfo;
+ UserHal::MachineInfo(machineInfo);
+ iSettings.iLocalIfId.SetAddr(machineInfo().iMachineUniqueId);
+ iSettings.iLocalIfId.SetUniversalBit(0);
+ //
+ // In WINS environment the id is zero which is no-no
+ //
+ if (iSettings.iLocalIfId.IsZero())
+ {
+ iSettings.iLocalIfId.SetAddrRandomNZ();
+ }
+
+ }
+ }
+
+void CIPv6ProtocolIf::UpdateContextConfigL(const
+ RPacketContext::TContextConfigGPRS&
+ aConfig)
+/**
+ * Called when the context has been activated to set our IP address and get
+ * any other required settings from CommDB.
+ *
+ * @param aConfig The new context config
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::UpdateContextConfig"));
+
+ // Get the settings which are stored in CommDB.
+ ReadCommDbGprsSettingsL();
+
+ // Get our IP address from the GPRS context config.
+ TInetAddr address;
+
+ TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
+ tempAddr.Copy(aConfig.iPdpAddress);
+ TInt ret = address.Input(tempAddr);
+
+ // We've got our IP address! Let's save it.
+ if (ret == KErrNone)
+ {
+ iSettings.iLocalAddr = address.Ip6Address();
+ LOG_IP_ADDRESS("Got local IP address", iSettings.iLocalAddr);
+ }
+ else
+ {
+ _LOG_L2C2(_L8("Couldn't get IP address from GPRS config (err: %d)"),
+ ret);
+
+ // Don't leave on this error: we may still be OK if we read some
+ // settings from CommDB.
+ }
+
+ // @todo - is this correct. We can only get the DNS addresses
+ // from the TSY using the iProtocolConfigOption data. Yet a client could
+ // access those DNS config details without knowing about the state of the
+ // iSettings.iGetDnsFromServer flag.
+
+ if ((iSettings.iGetDnsFromServer) ||
+ ((iSettings.iPrimaryDns.IsUnspecified()) &&
+ (iSettings.iSecondaryDns.IsUnspecified())) )
+ {
+ TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
+ tempAddr.Copy(aConfig.iProtocolConfigOption.iDnsAddresses.iPrimaryDns);
+ ret = address.Input(tempAddr);
+
+ if (ret == KErrNone)
+ {
+ iSettings.iPrimaryDns = address.Ip6Address();
+ LOG_IP_ADDRESS("Got primary DNS", iSettings.iPrimaryDns);
+ }
+ else
+ {
+ _LOG_L2C2(_L8("Couldn't get primary DNS address from GPRS config (err: %d)"),
+ ret);
+
+ // Don't leave on this error: we may still be OK if we read some
+ // settings from CommDB.
+ }
+
+ tempAddr.Copy(aConfig.iProtocolConfigOption.iDnsAddresses.iSecondaryDns);
+ ret = address.Input(tempAddr);
+
+ if (ret == KErrNone)
+ {
+ iSettings.iSecondaryDns = address.Ip6Address();
+ LOG_IP_ADDRESS("Got secondary DNS", iSettings.iPrimaryDns);
+ }
+ else
+ {
+ _LOG_L2C2(_L8("Couldn't get secondary DNS address from GPRS config (err: %d)"),
+ ret);
+
+ // Don't leave on this error: we may still be OK if we read some
+ // settings from CommDB.
+ }
+ }
+ else
+ {
+ LOG_IP_ADDRESS("Using CommDB DNS address - Primary ", iSettings.iPrimaryDns);
+ LOG_IP_ADDRESS(" - Secondary ", iSettings.iSecondaryDns);
+ }
+ }
+
+void CIPv6ProtocolIf::UpdateConnectionSpeed(TUint aConnectionSpeed)
+/**
+ * Sets the speed metric to return to TCP/IP, based on what the TSY tells us.
+ *
+ * @param aConnectionSpeed Our connection speed
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::UpdateConnectionSpeed"));
+
+ iSpeedMetric = aConnectionSpeed;
+ }
+
+void CIPv6ProtocolIf::ReadIPv4SettingL(const TDesC& aFieldName,
+ TUint32& aIpAddr)
+/**
+ * Reads an IPv4 address from CommDB, via the TRP agent. It leaves if an error
+ * other than KErrNotFound occurs.
+ *
+ * @param aFieldName The name of the field to read
+ * @param aIpAddr Will contain the IP address
+ */
+ {
+#ifdef __BTT_LOGGING__
+ TBuf8<256> debugBuffer;
+ debugBuffer.Copy(aFieldName);
+ _LOG_L1C2(_L8("CIPv6ProtocolIf::ReadIp4Setting [aFieldName=%S]"),
+ &debugBuffer);
+#endif
+
+ TBuf<KCommsDbSvrMaxFieldLength> name;
+ TInetAddr ip4Addr;
+
+ TInt ret = GetNifMain().GetAgent()->ReadDes(aFieldName, name);
+
+ if (ret == KErrNone)
+ {
+ // We've successfully read an IP address, so convert it into a number.
+ ip4Addr.Input(name);
+ aIpAddr = ip4Addr.Address();
+ }
+ else
+ {
+ // We couldn't get the IP address, so set it to 0.0.0.0. Note that we
+ // only leave here if we got a more serious error than "not found".
+ aIpAddr = 0;
+ if (ret != KErrNotFound)
+ {
+ _BTT_LEAVEIFERROR(ret);
+ }
+ }
+ }
+
+void CIPv6ProtocolIf::ReadIPv6SettingL(const TDesC& aFieldName,
+ TIp6Addr& aIpAddr)
+/**
+ * Reads an IPv6 address from CommDB, via the TRP agent. It leaves if an error
+ * other than KErrNotFound occurs.
+ *
+ * @param aFieldName The name of the field to read
+ * @param aIpAddr Will contain the IP address
+ */
+ {
+#ifdef __BTT_LOGGING__
+ TBuf8<256> debugBuffer;
+ debugBuffer.Copy(aFieldName);
+ _LOG_L1C2(_L8("CIPv6ProtocolIf::ReadIp6Setting [aFieldName=%S]"),
+ &debugBuffer);
+#endif
+
+ TBuf<KCommsDbSvrMaxFieldLength> name;
+ TInetAddr ip6Addr;
+
+ TInt ret = GetNifMain().GetAgent()->ReadDes(aFieldName, name);
+
+ if (ret == KErrNone)
+ {
+ // We've successfully read an IP address, so convert it into a number.
+ ip6Addr.Input(name);
+ aIpAddr = ip6Addr.Ip6Address();
+ }
+ else
+ {
+ // We couldn't get the IP address, so set it to 0.0.0.0. Note that we
+ // only leave here if we got a more serious error than "not found".
+ aIpAddr = KInet6AddrNone;
+ if (ret != KErrNotFound)
+ {
+ _BTT_LEAVEIFERROR(ret);
+ }
+ }
+ }
+
+TInt CIPv6ProtocolIf::Send(RMBufChain& aPdu, TAny* aSource)
+/**
+ * Called by the protocol to send an outgoing IP packet to the network.
+ *
+ * @param aPdu The outgoing packet
+ * @param aSource The source of the packet
+ * @return Standard error codes
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::Send"));
+
+#ifdef __BTT_LOGGING__
+ LogPacket(aPdu);
+#endif
+
+ // Return <0: an error occurred
+ // Return 0: no error, but don't send any more packets
+
+ return GetNifMain().SendPacket(aPdu, aSource, KIp6FrameType);
+ }
+
+void CIPv6ProtocolIf::Info(TNifIfInfo& aInfo) const
+/**
+ * Called by the protocol to get information about the NIF.
+ *
+ * @param aInfo Will contain NIF information
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::Info"));
+
+ // The parent class sets everything except the name...
+ CProtocolIfBase::Info(aInfo);
+ // ...which we set here.
+ WriteIfName(aInfo.iName);
+ }
+
+TInt CIPv6ProtocolIf::Notification(TAgentToNifEventType /*aEvent*/,
+ void* /*aInfo*/)
+/**
+ * The Nif will ignore any notification sent
+ *
+ * @param aEvent Not used
+ * @param aInfo Not used
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::Notification"));
+
+ return KErrNone;
+ }
+
+void CIPv6ProtocolIf::StartSending(CProtocolBase* aProtocol)
+/**
+ * Indicates to the protocol layer that the NIF is ready to send packets.
+ *
+ * @param aProtocol A pointer to a protocol
+ */
+ {
+ _LOG_L1C2(_L8("CIPv6ProtocolIf::StartSending [aProtocol=%X]"), aProtocol);
+
+ CProtocolIfBase::StartSending(aProtocol);
+ }
+
+TBool CIPv6ProtocolIf::WantsProtocol(TUint16 aProtocolCode)
+/**
+ * Indicates the type of protocol implemented by this class.
+ *
+ * @param aProtocolCode The protocol type
+ */
+ {
+ _LOG_L1C2(_L8("CIPv6ProtocolIf::WantsProtocol [aProtocolCode=%X]"),
+ aProtocolCode);
+
+#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS
+ return ((aProtocolCode & 0x00FF) == KIp6FrameType);
+#else
+ (void) aProtocolCode; // disable compiler warning
+ return ETrue;
+#endif // RAWIP_HEADER_APPENDED_TO_PACKETS
+ }
+
+void CIPv6ProtocolIf::Process(RMBufChain& aPdu)
+/**
+ * Called when an incoming IP packet has arrived. Send packets up to the
+ * TCP/IP stack.
+ *
+ * @param aPdu The incoming packet
+ */
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::Process"));
+
+#ifdef __BTT_LOGGING__
+ LogPacket(aPdu);
+#endif
+
+ // Pass incoming packets up to the protocol, unless it hasn't
+ // been bound yet.
+ if (iProtocol)
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf: Packet Sent to TCP/IP Protocol!!!"));
+ iProtocol->Process(aPdu, reinterpret_cast<CProtocolBase*>(this));
+ }
+ else
+ {
+ _LOG_L2C1(_L8("WARNING: dumping incoming packet, no protocol bound"));
+ aPdu.Free();
+ }
+ }
+
+#ifdef __BTT_LOGGING__
+void CIPv6ProtocolIf::LogPacket(const RMBufChain& aPacket)
+/**
+* Logs packet information into log file.
+*
+* @param aPacket The packet
+*/
+ {
+ _LOG_L1C1(_L8("CIPv6ProtocolIf::LogPacket"));
+
+ TInt mBufLength = aPacket.Length() - aPacket.First()->Length();
+
+ _LOG_L3C2(_L8("Analysis of %d byte packet:"), mBufLength);
+
+ //Note: All the constants used on this method are a pragmatic guess of the
+ //IP header fields. The only porpose of this method is logging.
+
+ if (mBufLength < 40)
+ {
+ _LOG_L3C2(_L8(" -doesn't appear to be a valid IPv6 packet (length=%d)")
+ , mBufLength);
+ return;
+ }
+
+ // Get a pointer to the packet's payload.
+ const TUint8* payloadPtr = aPacket.First()->Next()->Ptr();
+
+ if ((payloadPtr[0] & 0xF0) != 0x60)
+ {
+ _LOG_L3C2(_L8(" - doesn't appear to be an IPv6 packet (version=0x%X)"),
+ (payloadPtr[0] & 0xF0) >> 4);
+ return;
+ }
+
+ _LOG_L3C2(_L8(" - traffic class: 0x%X"),
+ ((payloadPtr[0] & 0xF) << 4) | ((payloadPtr[1] & 0xF0) >> 4));
+ _LOG_L3C2(_L8(" - flow label: 0x%X"),
+ ((payloadPtr[1] & 0x0F) << 16) | (payloadPtr[2] << 8) | payloadPtr[3]);
+ _LOG_L3C2(_L8(" - payload length: 0x%X"),
+ (payloadPtr[4] << 16) | payloadPtr[5]);
+ _LOG_L3C2(_L8(" - next header: 0x%08X"), payloadPtr[6]);
+ _LOG_L3C2(_L8(" - hop limit: 0x%08X"), payloadPtr[7]);
+ }
+#endif // __BTT_LOGGING__