diff -r 8ef833fbf5aa -r d0d9cc530d21 telephonyprotocols/rawipnif/version1/src/IPv6ProtocolIf.cpp --- a/telephonyprotocols/rawipnif/version1/src/IPv6ProtocolIf.cpp Wed Aug 18 10:57:47 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 // UserHal::MachineInfo() -#include -#include -#include -#include "RawIPNifMain.h" -#include "IPv6ProtocolIf.h" -#ifdef WCDMA_STUB -#include -#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 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 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 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 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(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__