diff -r 8ef833fbf5aa -r d0d9cc530d21 telephonyprotocols/rawipnif/version1/src/IPv4ProtocolIf.cpp --- a/telephonyprotocols/rawipnif/version1/src/IPv4ProtocolIf.cpp Wed Aug 18 10:57:47 2010 +0300 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,776 +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 CIPv4ProtocolIf class, which handles the transmission -// of IPv4 data to and from the TCP/IP stack. -// -// - -/** - @file -*/ - -#include -#include -#include "RawIPNifMain.h" -#include "IPv4ProtocolIf.h" -#ifdef WCDMA_STUB -#include -#endif -#define LOG_IP_ADDRESS(desc,addr) _LOG_L2C5(_L8(" " desc " = %d.%d.%d.%d from context"), \ - addr >> 24, (addr >> 16) & 0xFF, (addr >> 8) & 0xFF, addr & 0xFF); - -CIPv4ProtocolIf::CIPv4ProtocolIf(CRawIPNifMain& aNifMain, CBttLogger* aTheLogger) -/** - * Constructor - */ - : CProtocolIfBase(aNifMain,aTheLogger), - iTheLogger(aTheLogger), - iSpeedMetric(KDefaultSpeedMetric) - { - } - -CIPv4ProtocolIf::~CIPv4ProtocolIf() -/** - * Destructor - */ - { - } - -void CIPv4ProtocolIf::BindL(TAny* aId) -/** - * Binds protocol to the Nif - * - * @param aId A point the the protocol(TCP/IP) - */ - { - _LOG_L1C2(_L8("CIPv4ProtocolIf::BindL [aId=%X]"), aId); - - CProtocolIfBase::BindL(aId); // Call the superclass's method. - iNotify = iNifMain.Notify(); - } - -TInt CIPv4ProtocolIf::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("CIPv4ProtocolIf::Control [aLevel=%d, aName=%d]"), - aLevel, aName); - - if (aLevel == KSOLInterface) - { - switch (aName) - { - // General IP configuration commands are below this point. - - case KSoIfInfo: - // 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 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, 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 CIPv4ProtocolIf::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("CIPv4ProtocolIf::WriteIfConfig")); - - if (aIfConfig.Length() != sizeof(TSoInetIfConfig)) - { - return KErrArgument; - } - - TUint8* ptr = CONST_CAST(TUint8*, aIfConfig.Ptr()); - TSoInetIfConfig* config = REINTERPRET_CAST(TSoInetIfConfig*, ptr); - - if (config->iFamily != KAfInet) - { - return KErrNotSupported; - } - - TInetAddr::Cast(config->iConfig.iAddress).SetAddress(iSettings.iLocalAddr); - TInetAddr::Cast(config->iConfig.iNetMask).SetAddress(iSettings.iNetMask); - TInetAddr::Cast(config->iConfig.iBrdAddr). - SetAddress(iSettings.iBroadcastAddr); - TInetAddr::Cast(config->iConfig.iDefGate).SetAddress(iSettings.iDefGateway); - TInetAddr::Cast(config->iConfig.iNameSer1). - SetAddress(iSettings.iPrimaryDns); - TInetAddr::Cast(config->iConfig.iNameSer2). - SetAddress(iSettings.iSecondaryDns); - - return KErrNone; - } - -TInt CIPv4ProtocolIf::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("CIPv4ProtocolIf::WriteIfInfo")); - - if (aIfInfo.Length() != sizeof(TSoIfInfo)) - { - return KErrArgument; - } - - TSoIfInfo* info = (TSoIfInfo*) aIfInfo.Ptr(); - info->iFeatures = KIfCanBroadcast | KIfCanMulticast; - info->iSpeedMetric = iSpeedMetric; - info->iMtu = KDefaultMtu; - WriteIfName(info->iName); - - return KErrNone; - } - -TInt CIPv4ProtocolIf::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("CIPv4ProtocolIf::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 CIPv4ProtocolIf::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("CIPv4ProtocolIf::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 CIPv4ProtocolIf::ReadCommDbGprsSettingsL() -/** - * Reads GPRS IP settings from CommDB via the agent. - */ - { - _LOG_L1C1(_L8("CIPv4ProtocolIf::ReadCommDbGprsSettings")); - - // Read the IP address settings from CommDB. - ReadIPv4SettingL(TPtrC(GPRS_IP_ADDR), iSettings.iLocalAddr); - ReadIPv4SettingL(TPtrC(GPRS_IP_NETMASK), iSettings.iNetMask); - ReadIPv4SettingL(TPtrC(GPRS_IP_NAME_SERVER1), iSettings.iPrimaryDns); - ReadIPv4SettingL(TPtrC(GPRS_IP_NAME_SERVER2), iSettings.iSecondaryDns); - ReadIPv4SettingL(TPtrC(GPRS_IP_GATEWAY), iSettings.iDefGateway); - - // Read whether to get the gateway IP address from the server. - _BTT_LEAVEIFERROR(GetNifMain().GetAgent()->ReadBool( - TPtrC(GPRS_IP_ADDR_FROM_SERVER), - iSettings.iGetGatewayFromServer)); - - // Read whether to get the DNS addresses from the server. - _BTT_LEAVEIFERROR(GetNifMain().GetAgent()->ReadBool( - TPtrC(GPRS_IP_DNS_ADDR_FROM_SERVER), - iSettings.iGetDnsFromServer)); - - // Because CommDB doesn't define a Broadcast Address field, we must - // calculate the broadcast address. This is based on the localAddr - // and the netMask. - TInetAddr localAddr(iSettings.iLocalAddr, 0); - TInetAddr netMask(iSettings.iNetMask, 0); - TInetAddr broadcast; - broadcast.SubNetBroadcast(localAddr, netMask); - iSettings.iBroadcastAddr = broadcast.Address(); - } - -void CIPv4ProtocolIf::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("CIPv4ProtocolIf::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.Address(); - 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 == 0) && - (iSettings.iSecondaryDns == 0)) ) - { - TBuf tempAddr; - tempAddr.Copy(aConfig.iProtocolConfigOption.iDnsAddresses.iPrimaryDns); - ret = address.Input(tempAddr); - - if (ret == KErrNone) - { - iSettings.iPrimaryDns = address.Address(); - 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.Address(); - 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); - } - - - // 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 CIPv4ProtocolIf::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("CIPv4ProtocolIf::UpdateConnectionSpeed")); - - iSpeedMetric = aConnectionSpeed; - } - -void CIPv4ProtocolIf::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("CIPv4ProtocolIf::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); - } - } - } - -TInt CIPv4ProtocolIf::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("CIPv4ProtocolIf::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, KIp4FrameType); - } - -void CIPv4ProtocolIf::Info(TNifIfInfo& aInfo) const -/** - * Called by the protocol to get information about the NIF. - * - * @param aInfo Will contain NIF information - */ - { - _LOG_L1C1(_L8("CIPv4ProtocolIf::Info")); - - // The parent class sets everything except the name... - CProtocolIfBase::Info(aInfo); - // ...which we set here. - WriteIfName(aInfo.iName); - } - -TInt CIPv4ProtocolIf::Notification(TAgentToNifEventType /*aEvent*/, - void* /*aInfo*/) -/** - * The Nif will ignore any notification sent - * - * @param aEvent Not used - * @param aInfo Not used - */ - { - _LOG_L1C1(_L8("CIPv4ProtocolIf::Notification")); - - return KErrNone; - } - -void CIPv4ProtocolIf::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("CIPv4ProtocolIf::StartSending [aProtocol=%X]"), aProtocol); - - CProtocolIfBase::StartSending(aProtocol); - } - -TBool CIPv4ProtocolIf::WantsProtocol(TUint16 aProtocolCode) -/** - * Indicates the type of protocol implemented by this class. - * - * @param aProtocolCode The protocol type - */ - { - _LOG_L1C2(_L8("CIPv4ProtocolIf::WantsProtocol [aProtocolCode=%X]"), - aProtocolCode); - -#ifdef RAWIP_HEADER_APPENDED_TO_PACKETS - return ((aProtocolCode & 0x00FF) == KIp4FrameType); -#else - (void) aProtocolCode; // disable compiler warning - return ETrue; -#endif // RAWIP_HEADER_APPENDED_TO_PACKETS - } - -void CIPv4ProtocolIf::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("CIPv4ProtocolIf::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("CIPv4ProtocolIf: 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 CIPv4ProtocolIf::LogPacket(const RMBufChain& aPacket) -/** -* Logs packet information into log file. -* -* @param aPacket The packet -*/ - { - _LOG_L1C1(_L8("CIPv4ProtocolIf::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__