--- a/telephonyprotocols/rawipnif/src/IPv4Binder.cpp Mon May 03 13:37:20 2010 +0300
+++ b/telephonyprotocols/rawipnif/src/IPv4Binder.cpp Thu May 06 15:10:38 2010 +0100
@@ -1,670 +1,670 @@
-// Copyright (c) 2006-2010 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 CIPv4Binder class, which handles the transmission
-// of IPv4 data to and from the TCP/IP stack.
-//
-//
-
-/**
- @file
-*/
-
-#include <etelpckt.h>
-#include <in_iface.h>
-#include "RawIPFlow.h"
-#include "IPv4Binder.h"
-#include <comms-infras/linkprovision.h>
-#include <u32hal.h>
-
-using namespace ESock;
-#ifdef WCDMA_STUB
-#include <networking/umtsnifcontrolif.h>
-#endif
-
-#define LOG_IP_ADDRESS(desc,addr) _LOG_L1C5(_L8(" " desc " = %d.%d.%d.%d"), \
- addr >> 24, (addr >> 16) & 0xFF, (addr >> 8) & 0xFF, addr & 0xFF);
-
-#ifdef __EABI__
-// Patch data is used and KMtuIPv4 and KRMtuIPv4 can be modified to a different value in RawIpNif.iby file
-extern const TInt KMtuIPv4 = KDefaultMtu;
-extern const TInt KRMtuIPv4 = KDefaultMtu;
-#endif
-
-CIPv4Binder::CIPv4Binder(CRawIPFlow& aFlow, CBttLogger* aTheLogger)
-/**
- * Constructor
- */
- : CBinderBase(aFlow,aTheLogger),
- iSpeedMetric(KDefaultSpeedMetric)
- {
- }
-
-CIPv4Binder::~CIPv4Binder()
-/**
- * Destructor
- */
- {
- }
-
-MLowerDataSender* CIPv4Binder::Bind(MUpperDataReceiver* aUpperReceiver, MUpperControl* aUpperControl)
-/**
- * Binds TCP/IP protocol to Flow
- *
- * @param aUpperReceiver A pointer to Upper layer Receive class
- * @param aUpperControl A pointer to Upper layer control class
- */
- {
- CBinderBase::Bind(aUpperReceiver, aUpperControl); // Call the superclass's method.
- return this;
- }
-
-TInt CIPv4Binder::Control(TUint aLevel, TUint aName, TDes8& aOption)
-/**
- * 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
- * @return Standard error codes
- */
- {
- _LOG_L1C3(_L8("CIPv4Binder::Control [aLevel=%d, aName=%d]"),
- aLevel, aName);
-
- if (aLevel == KSOLInterface)
- {
- switch (aName)
- {
- case KSoIfHardwareAddr:
- // unsupported because we don't have a h/w address
- 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 IPv4 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, GetFlow().GetBcaController()->Nsapi()))
- {
- contextParams->iReasonCode = KErrNotFound;
- }
- else
- {
- contextParams->iContextInfo.iStatus =
- GetFlow().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:
- (void)aOption;
- break;
- }
- }
- return KErrNotSupported;
- }
-
-TInt CIPv4Binder::GetConfig(TBinderConfig& aConfig)
- {
- _LOG_L1C1(_L8("CIPv4Binder::GetConfig"));
-
- TBinderConfig4* config = TBinderConfig::Cast<TBinderConfig4>(aConfig);
-
- if(config == NULL)
- {
- return KErrNotSupported;
- }
-
- config->iFamily = KAfInet; /* KAfInet - selects TBinderConfig4 */
-
- config->iInfo.iFeatures = KIfCanBroadcast | KIfCanMulticast; /* Feature flags */
-
-
-#if defined __EABI__
- // Default value for Tx and Rx packet size
- config->iInfo.iMtu = KMtuIPv4;
- config->iInfo.iRMtu = KRMtuIPv4;
-#else // WINS
- // Set default values in case patch is not present in epoc.ini
- config->iInfo.iMtu = KDefaultMtu;
- config->iInfo.iRMtu = KDefaultMtu;
-
- // for the emulator process is patched via the epoc.ini file
- UserSvr::HalFunction(EHalGroupEmulator,EEmulatorHalIntProperty,(TAny*)"rawip_KMtuIPv4",&(config->iInfo.iMtu));
- UserSvr::HalFunction(EHalGroupEmulator,EEmulatorHalIntProperty,(TAny*)"rawip_KRMtuIPv4",&(config->iInfo.iRMtu));
-#endif
-
- config->iInfo.iSpeedMetric = iSpeedMetric; /* approximation of the interface speed in Kbps. */
-
- LOG_IP_ADDRESS("Local IP address from TBinderConfig", iSettings.iLocalAddr);
-
- config->iAddress.SetAddress(iSettings.iLocalAddr); /* Interface IP address. */
- config->iNetMask.SetAddress(iSettings.iNetMask); /* IP netmask. */
- config->iBrdAddr.SetAddress(iSettings.iBroadcastAddr); /* IP broadcast address. */
- config->iDefGate.SetAddress(iSettings.iDefGateway); /* IP default gateway or peer address (if known). */
- config->iNameSer1.SetAddress(iSettings.iPrimaryDns); /* IP primary name server (if any). */
- config->iNameSer2.SetAddress(iSettings.iSecondaryDns); /* IP secondary name server (if any). */
-
- return KErrNone;
- }
-#ifdef WCDMA_STUB
-
-TInt CIPv4Binder::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("CIPv4Binder::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, GetFlow().GetBcaController()->Nsapi()))
- {
- params->iReasonCode = KErrBadName;
- }
- else
- {
- params->iReasonCode = KErrNone;
- GetFlow().Stop(KErrNone, MNifIfNotify::EDisconnect);
- }
-
- return KErrNone;
- }
-
-#endif
-/**
- * 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
- */
-void CIPv4Binder::UpdateContextConfigL(const TPacketDataConfigBase& aConfig)
- {
- _LOG_L1C1(_L8("CIPv4Binder::UpdateContextConfig"));
-
- // Get our IP address from the GPRS context config.
- TInetAddr address;
-
- TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
-
- const RPacketContext::TProtocolConfigOptionV2* pco;
- TInt rel = const_cast<TPacketDataConfigBase&>(aConfig).ExtensionId();
- if (rel == TPacketDataConfigBase::KConfigGPRS)
- {
- tempAddr.Copy(static_cast<const RPacketContext::TContextConfigGPRS&>(aConfig).iPdpAddress);
- pco = &static_cast<const RPacketContext::TContextConfigGPRS&>(aConfig).iProtocolConfigOption;
- }
- else
- {
- ASSERT(rel == TPacketDataConfigBase::KConfigRel99Rel4 || rel == TPacketDataConfigBase::KConfigRel5);
- tempAddr.Copy(static_cast<const RPacketContext::TContextConfigR99_R4&>(aConfig).iPdpAddress);
- pco = &static_cast<const RPacketContext::TContextConfigR99_R4&>(aConfig).iProtocolConfigOption;
- }
- TInt ret = address.Input(tempAddr);
-
- // We've got our IP address! Let's save it.
- if (ret == KErrNone)
- {
- iSettings.iLocalAddr = address.Address();
- LOG_IP_ADDRESS("Got local IP address from context", iSettings.iLocalAddr);
- iSettings.iDefGateway = address.Address();
- _LOG_L1C1(_L8("Set Default Gateway to local IP address"));
- }
- 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 == 0) &&
- (iSettings.iSecondaryDns == 0)) )
- {
- TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
- tempAddr.Copy(pco->iDnsAddresses.iPrimaryDns);
- ret = address.Input(tempAddr);
-
- if (ret == KErrNone)
- {
- iSettings.iPrimaryDns = address.Address();
- LOG_IP_ADDRESS("Got primary DNS from context PCO", 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(pco->iDnsAddresses.iSecondaryDns);
- ret = address.Input(tempAddr);
-
- if (ret == KErrNone)
- {
- iSettings.iSecondaryDns = address.Address();
- LOG_IP_ADDRESS("Got secondary DNS from context PCO", 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);
- }
-
-
- // TProtocolConfigOptionV2::iMiscBuffer is not the correct way to pass a gateway
- // address - data needs to be passed in TLV format but there are no TLV content tags
- // defined for a gateway address and any UMTS/GPRS hardware which claims to be able
- // to supply this address is erroneous (3gpp standard 24.008, section 10.5.6.3).
- // This misuse of iMiscBuffer was preventing other correctly formed parameters from
- // being passed (INC113612).
-/* if (iSettings.iGetGatewayFromServer)
- {
- tempAddr.Copy(aConfig.iProtocolConfigOption.iMiscBuffer);
- ret = address.Input(tempAddr);
-
- if (ret == KErrNone)
- {
- iSettings.iDefGateway = address.Address();
- LOG_IP_ADDRESS("Got default gateway", iSettings.iDefGateway);
- }
- else
- {
- _LOG_L2C2(_L8("Couldn't get default gateway from GPRS config (err: %d)"),
- ret);
- }
- }*/
- }
-
-void CIPv4Binder::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("CIPv4Binder::UpdateConnectionSpeed"));
-
- iSpeedMetric = aConnectionSpeed;
- }
-
-
-MLowerDataSender::TSendResult CIPv4Binder::Send(RMBufChain& aPdu)
-/**
- * Called by the protocol to send an outgoing IP packet to the network.
- *
- * @param aPdu The outgoing packet
- * @return MLowerDataSender::ESendBlocked or ESendAccepted based on state of flow.
- */
- {
- _LOG_L1C1(_L8("CIPv4Binder::Send"));
-
-#ifdef __BTT_LOGGING__
- LogPacket(aPdu);
-#endif
-
- // Return ESendBlocked: flow cannot accept any more packets [blocked, queue full, etc]
- // Return ESendAccepted: flow has accepted this packet and can accept another.
-
- return GetFlow().SendPacket(aPdu, NULL, KIp4FrameType);
- }
-
-TInt CIPv4Binder::Notification(TAgentToNifEventType /*aEvent*/,
- void* /*aInfo*/)
-/**
- * The Nif will ignore any notification sent
- *
- * @param aEvent Not used
- * @param aInfo Not used
- */
- {
- _LOG_L1C1(_L8("CIPv4Binder::Notification"));
-
- return KErrNone;
- }
-
-void CIPv4Binder::StartSending()
-/**
- * Indicates to the protocol layer that the NIF is ready to send packets.
- *
- * @param aProtocol A pointer to a protocol
- */
- {
- _LOG_L1C1(_L8("CIPv4Binder::StartSending()"));
-
- CBinderBase::StartSending();
- }
-
-TBool CIPv4Binder::WantsProtocol(TUint16 aProtocolCode)
-/**
- * Indicates the type of protocol implemented by this class.
- *
- * @param aProtocolCode The protocol type
- */
- {
- _LOG_L1C2(_L8("CIPv4Binder::WantsProtocol [aProtocolCode=%X]"),
- aProtocolCode);
-
-#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS
- return ((aProtocolCode & 0x00FF) == KIp4FrameType);
-#else
- (void) aProtocolCode;
- return ETrue;
-#endif // RAWIP_HEADER_APPENDED_TO_PACKETS
- }
-
-void CIPv4Binder::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("CIPv4Binder::Process"));
-
-#ifdef __BTT_LOGGING__
- LogPacket(aPdu);
-#endif
-
- // Pass incoming packets up to the protocol, unless it hasn't
- // been bound yet.
- if (iUpperReceiver) // ASSERT(iUpperReceiver) ?
- {
- _LOG_L1C1(_L8("CIPv4Binder: Packet Sent to TCP/IP Protocol!!!"));
- iUpperReceiver->Process(aPdu);
- }
- else
- {
- _LOG_L2C1(_L8("WARNING: dumping incoming packet, no protocol bound"));
- aPdu.Free();
- }
- }
-
-//
-// MLowerControl methods
-//
-
-TInt CIPv4Binder::GetName(TDes& aName)
-/**
-*/
- {
- WriteIfName(aName);
- return KErrNone;
- }
-
-//
-// CBinderBase methods
-//
-
-void CIPv4Binder::SetProvision(const CIPConfig& aProvision)
-/**
-Set provisioning information for IPv4 binder.
-
-Called from RawIP Flow.
-
-@param aProvision Provisioning structure from Control side.
-*/
- {
- _LOG_L1C1(_L8("CIPv4Binder::SetProvision"));
-
- iSettings.iLocalAddr = aProvision.GetIpAddress();
- iSettings.iNetMask = aProvision.GetIpNetMask();
- iSettings.iBroadcastAddr = aProvision.GetBroadCastAddr();
- iSettings.iDefGateway = aProvision.GetIpGateway();
- iSettings.iPrimaryDns = aProvision.GetIp4NameServer1();
- iSettings.iSecondaryDns = aProvision.GetIp4NameServer2();
- iSettings.iGetGatewayFromServer = aProvision.GetIpAddrFromServer();
- iSettings.iGetDnsFromServer = aProvision.GetIp4DNSAddrFromServer();
-
- LOG_IP_ADDRESS("Local IP address from Provisioning", iSettings.iLocalAddr);
- }
-
-#ifdef __BTT_LOGGING__
-void CIPv4Binder::LogPacket(const RMBufChain& aPacket)
-/**
-* Logs packet information into log file.
-*
-* @param aPacket The packet
-*/
- {
- _LOG_L1C1(_L8("CIPv4Binder::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 < 20)
- {
- _LOG_L3C2(_L8(" -doesn't appear to be a valid IPv4 packet (length=%d)")
- , mBufLength);
- return;
- }
-
- // Get a pointer to the packet's payload.
- const TUint8* payloadPtr = aPacket.First()->Next()->Ptr();
-
- if ((payloadPtr[0] & 0xF0) != 0x40)
- {
- _LOG_L3C2(_L8(" - doesn't appear to be an IPv4 packet (version=0x%X)"),
- (payloadPtr[0] & 0xF0) >> 4);
- return;
- }
-
- if ((payloadPtr[0] & 0xF) != 0x5)
- {
- _LOG_L3C2(_L8(" - doesn't have a standard IP header (length=0x%X)"),
- payloadPtr[0] & 0xF);
- return;
- }
-
- _LOG_L3C5(_L8(" - src addr: %d.%d.%d.%d"), payloadPtr[12], payloadPtr[13],
- payloadPtr[14], payloadPtr[15]);
- _LOG_L3C5(_L8(" - dst addr: %d.%d.%d.%d"), payloadPtr[16], payloadPtr[17],
- payloadPtr[18], payloadPtr[19]);
-
- if (payloadPtr[9] == 0x06)
- {
- _LOG_L3C1(_L8(" - appears to be a TCP packet"));
- if (mBufLength < 40)
- {
- _LOG_L3C2(_L8(" - but is too short (length=0x%X)"), mBufLength);
- return;
- }
- _LOG_L3C3(_L8(" - src port: %d, dst port: %d"),
- (payloadPtr[20] << 8) + payloadPtr[21],
- (payloadPtr[22] << 8) + payloadPtr[23]);
- _LOG_L3C3(_L8(" - seq #: 0x%08X, ack #: 0x%08X"),
- (payloadPtr[24] << 24) + (payloadPtr[25] << 16) +
- (payloadPtr[26] << 8) + payloadPtr[27],
- (payloadPtr[28] << 24) + (payloadPtr[29] << 16) +
- (payloadPtr[30] << 8) + payloadPtr[31]);
-
- TBuf8<100> flagsSet;
- flagsSet.Copy(_L8(" - flags set: "));
-
- // Write description of payload's flags to "flagsSet"
- if (payloadPtr[33] & 0x01)
- {
- flagsSet.Append(_L8("FIN "));
- }
- if (payloadPtr[33] & 0x02)
- {
- flagsSet.Append(_L8("SYN "));
- }
- if (payloadPtr[33] & 0x04)
- {
- flagsSet.Append(_L8("RST "));
- }
- if (payloadPtr[33] & 0x08)
- {
- flagsSet.Append(_L8("PSH "));
- }
- if (payloadPtr[33] & 0x10)
- {
- flagsSet.Append(_L8("ACK "));
- }
- if (payloadPtr[33] & 0x20)
- {
- flagsSet.Append(_L8("URG "));
- }
- _LOG_L3C1(flagsSet);
-
- TInt dataOffset = payloadPtr[32] >> 2; // in bytes
- if ((dataOffset > 0) && (mBufLength > dataOffset + 30))
- {
- TBuf8<100> data;
- data.Copy(_L8(" - data begins: "));
- for (TInt i = dataOffset + 20; i < dataOffset + 100; i++)
- {
- // We skip some bytes at the end of the MBuf, as they're junk.
- if (i >= (mBufLength - 10))
- {
- break;
- }
- if (TChar(payloadPtr[i]).IsPrint())
- {
- data.Append(TChar(payloadPtr[i]));
- }
- else
- {
- data.Append(TChar('?'));
- }
- }
- _LOG_L3C1(data);
- }
- }
- else if (payloadPtr[9] == 0x01)
- {
- _LOG_L3C1(_L8(" - appears to be an ICMP packet"));
- if (mBufLength < 24)
- {
- _LOG_L3C2(_L8(" - but is too short (length=0x%X)"), mBufLength);
- return;
- }
-
- if (payloadPtr[20] == 0x8)
- {
- _LOG_L3C1(_L8(" - is an echo request"));
- }
- else if (payloadPtr[20] == 0x0)
- {
- _LOG_L3C1(_L8(" - is an echo reply"));
- }
- else
- {
- _LOG_L3C2(_L8(" - unknown type (0x%02X)"), payloadPtr[20]);
- return;
- }
-
- if (mBufLength >= 28)
- {
- _LOG_L3C3(_L8(" - ID: 0x%04X, seq #: 0x%04X"),
- (payloadPtr[24] << 8) + payloadPtr[25],
- (payloadPtr[26] << 8) + payloadPtr[27]);
- }
- }
- else if (payloadPtr[9] == 0x11)
- {
- _LOG_L3C1(_L8(" - appears to be a UDP packet"));
- if (mBufLength < 28)
- {
- _LOG_L3C2(_L8(" - but is too short (length=0x%X)"), mBufLength);
- return;
- }
- _LOG_L3C3(_L8(" - src port: %d, dst port: %d"),
- (payloadPtr[20] << 8) + payloadPtr[21],
- (payloadPtr[22] << 8) + payloadPtr[23]);
- }
- else
- {
- _LOG_L3C2(_L8(" - appears to be for an unknown protocol (0x%X)"),
- payloadPtr[9]);
- }
- }
-#endif // __BTT_LOGGING__
+// Copyright (c) 2006-2010 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 CIPv4Binder class, which handles the transmission
+// of IPv4 data to and from the TCP/IP stack.
+//
+//
+
+/**
+ @file
+*/
+
+#include <etelpckt.h>
+#include <in_iface.h>
+#include "RawIPFlow.h"
+#include "IPv4Binder.h"
+#include <comms-infras/linkprovision.h>
+#include <u32hal.h>
+
+using namespace ESock;
+#ifdef WCDMA_STUB
+#include <networking/umtsnifcontrolif.h>
+#endif
+
+#define LOG_IP_ADDRESS(desc,addr) _LOG_L1C5(_L8(" " desc " = %d.%d.%d.%d"), \
+ addr >> 24, (addr >> 16) & 0xFF, (addr >> 8) & 0xFF, addr & 0xFF);
+
+#ifdef __EABI__
+// Patch data is used and KMtuIPv4 and KRMtuIPv4 can be modified to a different value in RawIpNif.iby file
+extern const TInt KMtuIPv4 = KDefaultMtu;
+extern const TInt KRMtuIPv4 = KDefaultMtu;
+#endif
+
+CIPv4Binder::CIPv4Binder(CRawIPFlow& aFlow, CBttLogger* aTheLogger)
+/**
+ * Constructor
+ */
+ : CBinderBase(aFlow,aTheLogger),
+ iSpeedMetric(KDefaultSpeedMetric)
+ {
+ }
+
+CIPv4Binder::~CIPv4Binder()
+/**
+ * Destructor
+ */
+ {
+ }
+
+MLowerDataSender* CIPv4Binder::Bind(MUpperDataReceiver* aUpperReceiver, MUpperControl* aUpperControl)
+/**
+ * Binds TCP/IP protocol to Flow
+ *
+ * @param aUpperReceiver A pointer to Upper layer Receive class
+ * @param aUpperControl A pointer to Upper layer control class
+ */
+ {
+ CBinderBase::Bind(aUpperReceiver, aUpperControl); // Call the superclass's method.
+ return this;
+ }
+
+TInt CIPv4Binder::Control(TUint aLevel, TUint aName, TDes8& aOption)
+/**
+ * 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
+ * @return Standard error codes
+ */
+ {
+ _LOG_L1C3(_L8("CIPv4Binder::Control [aLevel=%d, aName=%d]"),
+ aLevel, aName);
+
+ if (aLevel == KSOLInterface)
+ {
+ switch (aName)
+ {
+ case KSoIfHardwareAddr:
+ // unsupported because we don't have a h/w address
+ 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 IPv4 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, GetFlow().GetBcaController()->Nsapi()))
+ {
+ contextParams->iReasonCode = KErrNotFound;
+ }
+ else
+ {
+ contextParams->iContextInfo.iStatus =
+ GetFlow().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:
+ (void)aOption;
+ break;
+ }
+ }
+ return KErrNotSupported;
+ }
+
+TInt CIPv4Binder::GetConfig(TBinderConfig& aConfig)
+ {
+ _LOG_L1C1(_L8("CIPv4Binder::GetConfig"));
+
+ TBinderConfig4* config = TBinderConfig::Cast<TBinderConfig4>(aConfig);
+
+ if(config == NULL)
+ {
+ return KErrNotSupported;
+ }
+
+ config->iFamily = KAfInet; /* KAfInet - selects TBinderConfig4 */
+
+ config->iInfo.iFeatures = KIfCanBroadcast | KIfCanMulticast; /* Feature flags */
+
+
+#if defined __EABI__
+ // Default value for Tx and Rx packet size
+ config->iInfo.iMtu = KMtuIPv4;
+ config->iInfo.iRMtu = KRMtuIPv4;
+#else // WINS
+ // Set default values in case patch is not present in epoc.ini
+ config->iInfo.iMtu = KDefaultMtu;
+ config->iInfo.iRMtu = KDefaultMtu;
+
+ // for the emulator process is patched via the epoc.ini file
+ UserSvr::HalFunction(EHalGroupEmulator,EEmulatorHalIntProperty,(TAny*)"rawip_KMtuIPv4",&(config->iInfo.iMtu));
+ UserSvr::HalFunction(EHalGroupEmulator,EEmulatorHalIntProperty,(TAny*)"rawip_KRMtuIPv4",&(config->iInfo.iRMtu));
+#endif
+
+ config->iInfo.iSpeedMetric = iSpeedMetric; /* approximation of the interface speed in Kbps. */
+
+ LOG_IP_ADDRESS("Local IP address from TBinderConfig", iSettings.iLocalAddr);
+
+ config->iAddress.SetAddress(iSettings.iLocalAddr); /* Interface IP address. */
+ config->iNetMask.SetAddress(iSettings.iNetMask); /* IP netmask. */
+ config->iBrdAddr.SetAddress(iSettings.iBroadcastAddr); /* IP broadcast address. */
+ config->iDefGate.SetAddress(iSettings.iDefGateway); /* IP default gateway or peer address (if known). */
+ config->iNameSer1.SetAddress(iSettings.iPrimaryDns); /* IP primary name server (if any). */
+ config->iNameSer2.SetAddress(iSettings.iSecondaryDns); /* IP secondary name server (if any). */
+
+ return KErrNone;
+ }
+#ifdef WCDMA_STUB
+
+TInt CIPv4Binder::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("CIPv4Binder::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, GetFlow().GetBcaController()->Nsapi()))
+ {
+ params->iReasonCode = KErrBadName;
+ }
+ else
+ {
+ params->iReasonCode = KErrNone;
+ GetFlow().Stop(KErrNone, MNifIfNotify::EDisconnect);
+ }
+
+ return KErrNone;
+ }
+
+#endif
+/**
+ * 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
+ */
+void CIPv4Binder::UpdateContextConfigL(const TPacketDataConfigBase& aConfig)
+ {
+ _LOG_L1C1(_L8("CIPv4Binder::UpdateContextConfig"));
+
+ // Get our IP address from the GPRS context config.
+ TInetAddr address;
+
+ TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
+
+ const RPacketContext::TProtocolConfigOptionV2* pco;
+ TInt rel = const_cast<TPacketDataConfigBase&>(aConfig).ExtensionId();
+ if (rel == TPacketDataConfigBase::KConfigGPRS)
+ {
+ tempAddr.Copy(static_cast<const RPacketContext::TContextConfigGPRS&>(aConfig).iPdpAddress);
+ pco = &static_cast<const RPacketContext::TContextConfigGPRS&>(aConfig).iProtocolConfigOption;
+ }
+ else
+ {
+ ASSERT(rel == TPacketDataConfigBase::KConfigRel99Rel4 || rel == TPacketDataConfigBase::KConfigRel5);
+ tempAddr.Copy(static_cast<const RPacketContext::TContextConfigR99_R4&>(aConfig).iPdpAddress);
+ pco = &static_cast<const RPacketContext::TContextConfigR99_R4&>(aConfig).iProtocolConfigOption;
+ }
+ TInt ret = address.Input(tempAddr);
+
+ // We've got our IP address! Let's save it.
+ if (ret == KErrNone)
+ {
+ iSettings.iLocalAddr = address.Address();
+ LOG_IP_ADDRESS("Got local IP address from context", iSettings.iLocalAddr);
+ iSettings.iDefGateway = address.Address();
+ _LOG_L1C1(_L8("Set Default Gateway to local IP address"));
+ }
+ 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 == 0) &&
+ (iSettings.iSecondaryDns == 0)) )
+ {
+ TBuf<RPacketContext::KMaxPDPAddressLength> tempAddr;
+ tempAddr.Copy(pco->iDnsAddresses.iPrimaryDns);
+ ret = address.Input(tempAddr);
+
+ if (ret == KErrNone)
+ {
+ iSettings.iPrimaryDns = address.Address();
+ LOG_IP_ADDRESS("Got primary DNS from context PCO", 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(pco->iDnsAddresses.iSecondaryDns);
+ ret = address.Input(tempAddr);
+
+ if (ret == KErrNone)
+ {
+ iSettings.iSecondaryDns = address.Address();
+ LOG_IP_ADDRESS("Got secondary DNS from context PCO", 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);
+ }
+
+
+ // TProtocolConfigOptionV2::iMiscBuffer is not the correct way to pass a gateway
+ // address - data needs to be passed in TLV format but there are no TLV content tags
+ // defined for a gateway address and any UMTS/GPRS hardware which claims to be able
+ // to supply this address is erroneous (3gpp standard 24.008, section 10.5.6.3).
+ // This misuse of iMiscBuffer was preventing other correctly formed parameters from
+ // being passed (INC113612).
+/* if (iSettings.iGetGatewayFromServer)
+ {
+ tempAddr.Copy(aConfig.iProtocolConfigOption.iMiscBuffer);
+ ret = address.Input(tempAddr);
+
+ if (ret == KErrNone)
+ {
+ iSettings.iDefGateway = address.Address();
+ LOG_IP_ADDRESS("Got default gateway", iSettings.iDefGateway);
+ }
+ else
+ {
+ _LOG_L2C2(_L8("Couldn't get default gateway from GPRS config (err: %d)"),
+ ret);
+ }
+ }*/
+ }
+
+void CIPv4Binder::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("CIPv4Binder::UpdateConnectionSpeed"));
+
+ iSpeedMetric = aConnectionSpeed;
+ }
+
+
+MLowerDataSender::TSendResult CIPv4Binder::Send(RMBufChain& aPdu)
+/**
+ * Called by the protocol to send an outgoing IP packet to the network.
+ *
+ * @param aPdu The outgoing packet
+ * @return MLowerDataSender::ESendBlocked or ESendAccepted based on state of flow.
+ */
+ {
+ _LOG_L1C1(_L8("CIPv4Binder::Send"));
+
+#ifdef __BTT_LOGGING__
+ LogPacket(aPdu);
+#endif
+
+ // Return ESendBlocked: flow cannot accept any more packets [blocked, queue full, etc]
+ // Return ESendAccepted: flow has accepted this packet and can accept another.
+
+ return GetFlow().SendPacket(aPdu, NULL, KIp4FrameType);
+ }
+
+TInt CIPv4Binder::Notification(TAgentToNifEventType /*aEvent*/,
+ void* /*aInfo*/)
+/**
+ * The Nif will ignore any notification sent
+ *
+ * @param aEvent Not used
+ * @param aInfo Not used
+ */
+ {
+ _LOG_L1C1(_L8("CIPv4Binder::Notification"));
+
+ return KErrNone;
+ }
+
+void CIPv4Binder::StartSending()
+/**
+ * Indicates to the protocol layer that the NIF is ready to send packets.
+ *
+ * @param aProtocol A pointer to a protocol
+ */
+ {
+ _LOG_L1C1(_L8("CIPv4Binder::StartSending()"));
+
+ CBinderBase::StartSending();
+ }
+
+TBool CIPv4Binder::WantsProtocol(TUint16 aProtocolCode)
+/**
+ * Indicates the type of protocol implemented by this class.
+ *
+ * @param aProtocolCode The protocol type
+ */
+ {
+ _LOG_L1C2(_L8("CIPv4Binder::WantsProtocol [aProtocolCode=%X]"),
+ aProtocolCode);
+
+#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS
+ return ((aProtocolCode & 0x00FF) == KIp4FrameType);
+#else
+ (void) aProtocolCode;
+ return ETrue;
+#endif // RAWIP_HEADER_APPENDED_TO_PACKETS
+ }
+
+void CIPv4Binder::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("CIPv4Binder::Process"));
+
+#ifdef __BTT_LOGGING__
+ LogPacket(aPdu);
+#endif
+
+ // Pass incoming packets up to the protocol, unless it hasn't
+ // been bound yet.
+ if (iUpperReceiver) // ASSERT(iUpperReceiver) ?
+ {
+ _LOG_L1C1(_L8("CIPv4Binder: Packet Sent to TCP/IP Protocol!!!"));
+ iUpperReceiver->Process(aPdu);
+ }
+ else
+ {
+ _LOG_L2C1(_L8("WARNING: dumping incoming packet, no protocol bound"));
+ aPdu.Free();
+ }
+ }
+
+//
+// MLowerControl methods
+//
+
+TInt CIPv4Binder::GetName(TDes& aName)
+/**
+*/
+ {
+ WriteIfName(aName);
+ return KErrNone;
+ }
+
+//
+// CBinderBase methods
+//
+
+void CIPv4Binder::SetProvision(const CIPConfig& aProvision)
+/**
+Set provisioning information for IPv4 binder.
+
+Called from RawIP Flow.
+
+@param aProvision Provisioning structure from Control side.
+*/
+ {
+ _LOG_L1C1(_L8("CIPv4Binder::SetProvision"));
+
+ iSettings.iLocalAddr = aProvision.GetIpAddress();
+ iSettings.iNetMask = aProvision.GetIpNetMask();
+ iSettings.iBroadcastAddr = aProvision.GetBroadCastAddr();
+ iSettings.iDefGateway = aProvision.GetIpGateway();
+ iSettings.iPrimaryDns = aProvision.GetIp4NameServer1();
+ iSettings.iSecondaryDns = aProvision.GetIp4NameServer2();
+ iSettings.iGetGatewayFromServer = aProvision.GetIpAddrFromServer();
+ iSettings.iGetDnsFromServer = aProvision.GetIp4DNSAddrFromServer();
+
+ LOG_IP_ADDRESS("Local IP address from Provisioning", iSettings.iLocalAddr);
+ }
+
+#ifdef __BTT_LOGGING__
+void CIPv4Binder::LogPacket(const RMBufChain& aPacket)
+/**
+* Logs packet information into log file.
+*
+* @param aPacket The packet
+*/
+ {
+ _LOG_L1C1(_L8("CIPv4Binder::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 < 20)
+ {
+ _LOG_L3C2(_L8(" -doesn't appear to be a valid IPv4 packet (length=%d)")
+ , mBufLength);
+ return;
+ }
+
+ // Get a pointer to the packet's payload.
+ const TUint8* payloadPtr = aPacket.First()->Next()->Ptr();
+
+ if ((payloadPtr[0] & 0xF0) != 0x40)
+ {
+ _LOG_L3C2(_L8(" - doesn't appear to be an IPv4 packet (version=0x%X)"),
+ (payloadPtr[0] & 0xF0) >> 4);
+ return;
+ }
+
+ if ((payloadPtr[0] & 0xF) != 0x5)
+ {
+ _LOG_L3C2(_L8(" - doesn't have a standard IP header (length=0x%X)"),
+ payloadPtr[0] & 0xF);
+ return;
+ }
+
+ _LOG_L3C5(_L8(" - src addr: %d.%d.%d.%d"), payloadPtr[12], payloadPtr[13],
+ payloadPtr[14], payloadPtr[15]);
+ _LOG_L3C5(_L8(" - dst addr: %d.%d.%d.%d"), payloadPtr[16], payloadPtr[17],
+ payloadPtr[18], payloadPtr[19]);
+
+ if (payloadPtr[9] == 0x06)
+ {
+ _LOG_L3C1(_L8(" - appears to be a TCP packet"));
+ if (mBufLength < 40)
+ {
+ _LOG_L3C2(_L8(" - but is too short (length=0x%X)"), mBufLength);
+ return;
+ }
+ _LOG_L3C3(_L8(" - src port: %d, dst port: %d"),
+ (payloadPtr[20] << 8) + payloadPtr[21],
+ (payloadPtr[22] << 8) + payloadPtr[23]);
+ _LOG_L3C3(_L8(" - seq #: 0x%08X, ack #: 0x%08X"),
+ (payloadPtr[24] << 24) + (payloadPtr[25] << 16) +
+ (payloadPtr[26] << 8) + payloadPtr[27],
+ (payloadPtr[28] << 24) + (payloadPtr[29] << 16) +
+ (payloadPtr[30] << 8) + payloadPtr[31]);
+
+ TBuf8<100> flagsSet;
+ flagsSet.Copy(_L8(" - flags set: "));
+
+ // Write description of payload's flags to "flagsSet"
+ if (payloadPtr[33] & 0x01)
+ {
+ flagsSet.Append(_L8("FIN "));
+ }
+ if (payloadPtr[33] & 0x02)
+ {
+ flagsSet.Append(_L8("SYN "));
+ }
+ if (payloadPtr[33] & 0x04)
+ {
+ flagsSet.Append(_L8("RST "));
+ }
+ if (payloadPtr[33] & 0x08)
+ {
+ flagsSet.Append(_L8("PSH "));
+ }
+ if (payloadPtr[33] & 0x10)
+ {
+ flagsSet.Append(_L8("ACK "));
+ }
+ if (payloadPtr[33] & 0x20)
+ {
+ flagsSet.Append(_L8("URG "));
+ }
+ _LOG_L3C1(flagsSet);
+
+ TInt dataOffset = payloadPtr[32] >> 2; // in bytes
+ if ((dataOffset > 0) && (mBufLength > dataOffset + 30))
+ {
+ TBuf8<100> data;
+ data.Copy(_L8(" - data begins: "));
+ for (TInt i = dataOffset + 20; i < dataOffset + 100; i++)
+ {
+ // We skip some bytes at the end of the MBuf, as they're junk.
+ if (i >= (mBufLength - 10))
+ {
+ break;
+ }
+ if (TChar(payloadPtr[i]).IsPrint())
+ {
+ data.Append(TChar(payloadPtr[i]));
+ }
+ else
+ {
+ data.Append(TChar('?'));
+ }
+ }
+ _LOG_L3C1(data);
+ }
+ }
+ else if (payloadPtr[9] == 0x01)
+ {
+ _LOG_L3C1(_L8(" - appears to be an ICMP packet"));
+ if (mBufLength < 24)
+ {
+ _LOG_L3C2(_L8(" - but is too short (length=0x%X)"), mBufLength);
+ return;
+ }
+
+ if (payloadPtr[20] == 0x8)
+ {
+ _LOG_L3C1(_L8(" - is an echo request"));
+ }
+ else if (payloadPtr[20] == 0x0)
+ {
+ _LOG_L3C1(_L8(" - is an echo reply"));
+ }
+ else
+ {
+ _LOG_L3C2(_L8(" - unknown type (0x%02X)"), payloadPtr[20]);
+ return;
+ }
+
+ if (mBufLength >= 28)
+ {
+ _LOG_L3C3(_L8(" - ID: 0x%04X, seq #: 0x%04X"),
+ (payloadPtr[24] << 8) + payloadPtr[25],
+ (payloadPtr[26] << 8) + payloadPtr[27]);
+ }
+ }
+ else if (payloadPtr[9] == 0x11)
+ {
+ _LOG_L3C1(_L8(" - appears to be a UDP packet"));
+ if (mBufLength < 28)
+ {
+ _LOG_L3C2(_L8(" - but is too short (length=0x%X)"), mBufLength);
+ return;
+ }
+ _LOG_L3C3(_L8(" - src port: %d, dst port: %d"),
+ (payloadPtr[20] << 8) + payloadPtr[21],
+ (payloadPtr[22] << 8) + payloadPtr[23]);
+ }
+ else
+ {
+ _LOG_L3C2(_L8(" - appears to be for an unknown protocol (0x%X)"),
+ payloadPtr[9]);
+ }
+ }
+#endif // __BTT_LOGGING__