realtimenetprots/sipfw/SIP/ConnectionMgr/src/NetworkInfo.cpp
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     1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // Name        : NetworkInfo.cpp
       
    15 // Part of     : ConnectionMgr
       
    16 // Implementation
       
    17 // Version     : SIP/6.0
       
    18 //
       
    19 
       
    20 
       
    21 
       
    22 #include "NetworkInfo.h"
       
    23 #include "CNetworkManager.h"
       
    24 #include "siprequest.h"
       
    25 #include "sippaccessnetworkinfoheader.h"
       
    26 #include "sipstrings.h"
       
    27 #include "sipstrconsts.h"
       
    28 
       
    29 // ----------------------------------------------------------------------------
       
    30 // CNetworkInfo::NewL
       
    31 // ----------------------------------------------------------------------------
       
    32 //
       
    33 CNetworkInfo* CNetworkInfo::NewL( CNetworkManager& aNetworkManager )
       
    34 	{
       
    35 	CNetworkInfo* self = new ( ELeave ) CNetworkInfo( aNetworkManager );
       
    36 	CleanupStack::PushL( self );
       
    37 	self->ConstructL();
       
    38 	CleanupStack::Pop( self );
       
    39 	return self;
       
    40 	}
       
    41 
       
    42 // ----------------------------------------------------------------------------
       
    43 // CNetworkInfo::CNetworkInfo
       
    44 // ----------------------------------------------------------------------------
       
    45 //
       
    46 CNetworkInfo::CNetworkInfo( CNetworkManager& aNetworkManager ) :
       
    47 	iNetworkManager( aNetworkManager )
       
    48 	{
       
    49 	const RStringF empty = SIPStrings::StringF( SipStrConsts::EEmpty );
       
    50 	iAccessType = empty;
       
    51 	iAccessInfoValue = empty;
       
    52 	
       
    53 	//If the plugin has not yet been loaded, the returned iInfo will be empty.
       
    54 	//It doesn't matter, since the plugin will be loaded before any SIP request
       
    55 	//can be sent, and at that point plugin will synchronously obtain current
       
    56 	//info, and pass it to here.
       
    57 	iInfo = iNetworkManager.RegisterAccessNetworkObserver( *this );	
       
    58 	}
       
    59 
       
    60 // ----------------------------------------------------------------------------
       
    61 // CNetworkInfo::ConstructL
       
    62 // ----------------------------------------------------------------------------
       
    63 //
       
    64 void CNetworkInfo::ConstructL()
       
    65 	{
       
    66 	_LIT8( K3gppGeran, "3GPP-GERAN" );
       
    67 	_LIT8( K3gppUtranFdd, "3GPP-UTRAN-FDD" );
       
    68 	_LIT8( K3gppUtranTdd, "3GPP-UTRAN-TDD" );
       
    69 	_LIT8( K3gppCdma2000, "3GPP-CDMA2000" );
       
    70 	
       
    71 	i3gppGeran = SIPStrings::Pool().OpenFStringL( K3gppGeran );
       
    72 	i3gppUtranFdd = SIPStrings::Pool().OpenFStringL( K3gppUtranFdd );
       
    73 	i3gppUtranTdd = SIPStrings::Pool().OpenFStringL( K3gppUtranTdd );
       
    74 	i3gppCdma2000 = SIPStrings::Pool().OpenFStringL( K3gppCdma2000 );
       
    75 
       
    76 	//This can't be done before i3gppGeran etc have been initialized
       
    77 	TranslateInfoL();
       
    78 	}
       
    79 
       
    80 // ----------------------------------------------------------------------------
       
    81 // CNetworkInfo::~CNetworkInfo
       
    82 // ----------------------------------------------------------------------------
       
    83 //
       
    84 CNetworkInfo::~CNetworkInfo()
       
    85 	{
       
    86 	iNetworkManager.DeregisterAccessNetworkObserver();
       
    87 	iAccessType.Close();
       
    88 	iAccessInfoValue.Close();
       
    89 	i3gppGeran.Close();
       
    90 	i3gppUtranFdd.Close();
       
    91 	i3gppUtranTdd.Close();
       
    92 	i3gppCdma2000.Close();
       
    93 	}
       
    94 
       
    95 // ----------------------------------------------------------------------------
       
    96 // CNetworkInfo::InfoChanged
       
    97 // ----------------------------------------------------------------------------
       
    98 //
       
    99 void CNetworkInfo::InfoChanged( const TSIPAccessNetworkInfo& aInfo )
       
   100 	{	
       
   101 	iInfo = aInfo;	
       
   102 	TRAP_IGNORE( TranslateInfoL() )
       
   103 	}
       
   104 
       
   105 // ---------------------------------------------------------------------------
       
   106 // CNetworkInfo::HandleRequestL
       
   107 // Add P-Access-Network-Info header when needed
       
   108 // ----------------------------------------------------------------------------
       
   109 //
       
   110 void CNetworkInfo::HandleRequestL( CSIPRequest& aRequest,
       
   111 								   TBool aIntegrityProtected )
       
   112 	{
       
   113 	//Delete possibly existing old header, since e.g. cell may have changed,
       
   114 	//or a refreshed request may no longer be sent integrity protected etc.
       
   115 	aRequest.DeleteHeaders(
       
   116 		SIPStrings::StringF( SipStrConsts::EPAccessNetworkInfoHeader ) );
       
   117 
       
   118 	if ( aIntegrityProtected )
       
   119 		{		
       
   120 		RStringF method = aRequest.Method();			
       
   121 		if ( method != SIPStrings::StringF( SipStrConsts::EAck ) &&
       
   122 			 method != SIPStrings::StringF( SipStrConsts::ECancel ) )
       
   123 			{
       
   124 			AddHeaderL( aRequest );
       
   125 			}
       
   126 		}
       
   127 	}
       
   128 
       
   129 // ----------------------------------------------------------------------------
       
   130 // CNetworkInfo::AddHeaderL
       
   131 // ----------------------------------------------------------------------------
       
   132 //
       
   133 void CNetworkInfo::AddHeaderL( CSIPRequest& aRequest )
       
   134 	{
       
   135 	// Valid LAC and CellId are included also when iInfo.iAreaKnown is EFalse
       
   136 	if ( iAccessType != SIPStrings::StringF( SipStrConsts::EEmpty ) )
       
   137 		{
       
   138 		CSIPPAccessNetworkInfoHeader* header =
       
   139 			CSIPPAccessNetworkInfoHeader::NewLC( iAccessType );
       
   140 
       
   141 		if ( iAccessType == i3gppGeran )
       
   142 			{
       
   143 			header->SetParamL( SIPStrings::StringF( SipStrConsts::ECgi3gpp ),
       
   144 			 				   iAccessInfoValue );
       
   145 			}
       
   146 		if ( iAccessType == i3gppUtranFdd ||
       
   147 			 iAccessType == i3gppUtranTdd ||
       
   148 			 iAccessType ==	i3gppCdma2000 )
       
   149 			{
       
   150 			header->SetParamL(
       
   151 				SIPStrings::StringF( SipStrConsts::EUtranCellId3gpp ),
       
   152 			 	iAccessInfoValue );
       
   153 			}
       
   154 
       
   155 		aRequest.AddHeaderL( header );
       
   156 		CleanupStack::Pop( header );
       
   157 		}
       
   158 	}
       
   159 
       
   160 // ----------------------------------------------------------------------------
       
   161 // CNetworkInfo::TranslateInfoL
       
   162 // ----------------------------------------------------------------------------
       
   163 //
       
   164 void CNetworkInfo::TranslateInfoL()
       
   165 	{
       
   166 	DetermineAccessType();
       
   167 	DetermineAccessInfoL();
       
   168 	}
       
   169 
       
   170 // ----------------------------------------------------------------------------
       
   171 // CNetworkInfo::DetermineAccessType
       
   172 // ----------------------------------------------------------------------------
       
   173 //
       
   174 void CNetworkInfo::DetermineAccessType()
       
   175 	{
       
   176 	iAccessType.Close();
       
   177 
       
   178 	switch ( iInfo.iNetworkMode )
       
   179 		{
       
   180 		//GSM/GPRS or DCS1800 network
       
   181 		case RMobilePhone::ENetworkModeGsm:			
       
   182 			iAccessType = i3gppGeran.Copy();
       
   183 			break;
       
   184 
       
   185 		//CDMA (cdma2000) network.
       
   186 		case RMobilePhone::ENetworkModeCdma2000:
       
   187 			iAccessType = i3gppCdma2000.Copy();
       
   188 			break;
       
   189 
       
   190 		//WCDMA (UTRA Frequency Division Duplex (FDD)) network
       
   191 		case RMobilePhone::ENetworkModeWcdma:
       
   192 			iAccessType = i3gppUtranFdd.Copy();
       
   193 			break;
       
   194 	
       
   195 		//TD-CDMA (UTRA Time Division Duplex (TDD)) network	
       
   196 		case RMobilePhone::ENetworkModeTdcdma:
       
   197 			iAccessType = i3gppUtranTdd.Copy();
       
   198 			break;
       
   199 
       
   200 		//AMPS network
       
   201 		case RMobilePhone::ENetworkModeAmps:
       
   202 		//CDMA (IS-95) network
       
   203 		case RMobilePhone::ENetworkModeCdma95:
       
   204 		//Other network modes
       
   205 		case RMobilePhone::ENetworkModeUnknown:
       
   206 		case RMobilePhone::ENetworkModeUnregistered:
       
   207 		default:			
       
   208 			iAccessType = SIPStrings::StringF( SipStrConsts::EEmpty );
       
   209 		}
       
   210 	}
       
   211 
       
   212 // ----------------------------------------------------------------------------
       
   213 // CNetworkInfo::DetermineAccessInfoL
       
   214 // Valid LAC and CellId are included also when iInfo.iAreaKnown is EFalse.
       
   215 // ----------------------------------------------------------------------------
       
   216 //
       
   217 void CNetworkInfo::DetermineAccessInfoL()
       
   218 	{
       
   219 	iAccessInfoValue.Close();
       
   220 
       
   221 	if ( iAccessType == i3gppGeran ||
       
   222 	     iAccessType == i3gppUtranFdd ||
       
   223 		 iAccessType == i3gppUtranTdd ||
       
   224 		 iAccessType == i3gppCdma2000 )
       
   225 		{
       
   226 		//Long enough to hold:
       
   227 		//	MCC: 3 digits
       
   228 		//  MNC: 2 or 3 digits (depending on MCC value)
       
   229 		//  LAC: 4 hex digits (16 bits)
       
   230 		//  Cell Identity: 4 or 7 hex digits (16 or 28 bits)
       
   231 		const TInt KAccessInfoStringLength = 18;
       
   232 		HBufC8* accessInfo = HBufC8::NewLC( KAccessInfoStringLength );		
       
   233 		TPtr8 ptr = accessInfo->Des();		
       
   234 
       
   235 		//MCC = TBuf<4> RMobilePhone::TMobilePhoneNetworkCountryCode;
       
   236 		//MNC = TBuf<8> RMobilePhone::TMobilePhoneNetworkIdentity;
       
   237 
       
   238 		ptr.Append( iInfo.iMobileCountryCode.Left( 3 ) );		
       
   239 		ptr.Append( iInfo.iMobileNetworkCode.Left( 3 ) );
       
   240 
       
   241 		//LAC is a 16 bit value
       
   242 		const TUint KLacMask = 0xffff;
       
   243 		//Include leading zeros
       
   244 		_LIT8( K16BitFormat, "%04x" );
       
   245 		ptr.AppendFormat( K16BitFormat, iInfo.iLocationAreaCode & KLacMask );
       
   246 
       
   247 		if ( iAccessType == i3gppGeran )
       
   248 			{
       
   249 			//CI (Cell Identity) is a 16 bit value
       
   250 			const TUint KCellIdMask = 0xffff;
       
   251 			ptr.AppendFormat( K16BitFormat, iInfo.iCellId & KCellIdMask );
       
   252 			}
       
   253 		else
       
   254 			{
       
   255 			//UMTS Cell Identity is a 28 bit value
       
   256 			const TUint KUmtsCellIdMask = 0xfffffff;
       
   257 			_LIT8( KUmtsCellIdFormat, "%07x" );
       
   258 			ptr.AppendFormat( KUmtsCellIdFormat,
       
   259 							  iInfo.iCellId & KUmtsCellIdMask );
       
   260 			}
       
   261 
       
   262 		iAccessInfoValue = SIPStrings::Pool().OpenFStringL( *accessInfo );		
       
   263 		CleanupStack::PopAndDestroy( accessInfo );
       
   264 		}
       
   265 	else
       
   266 		{		
       
   267 		iAccessInfoValue = SIPStrings::StringF( SipStrConsts::EEmpty );
       
   268 		}
       
   269 	}