--- a/telephonyprotocols/rawipnif/version1/src/IPv6ProtocolIf.cpp Thu Aug 19 11:03:36 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,696 +0,0 @@
-// 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__