vpnengine/vpnipsecpolparser/inc/spdb.h
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     1 /*
       
     2 * Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description: 
       
    15 * This file contains the class definitions for IPsec security policy.
       
    16 *
       
    17 */
       
    18 
       
    19 
       
    20 
       
    21 #ifndef _SPDB_H
       
    22 #define _SPDB_H
       
    23 
       
    24 //////////////////////////////////////////////////////////////////////////////
       
    25 // INCLUDE FILES
       
    26 //////////////////////////////////////////////////////////////////////////////
       
    27 
       
    28 #include <in_sock.h>
       
    29 #include "sa_spec.h"
       
    30 
       
    31 //////////////////////////////////////////////////////////////////////////////
       
    32 // FORWARD DECLARATIONS
       
    33 //////////////////////////////////////////////////////////////////////////////
       
    34 
       
    35 class CPolicySelector;
       
    36 class CSecpolBundleItem;
       
    37 
       
    38 //////////////////////////////////////////////////////////////////////////////
       
    39 // ENUMERATIONS
       
    40 //////////////////////////////////////////////////////////////////////////////
       
    41 
       
    42 enum TPolicySpecType 
       
    43     { 
       
    44     EPolSpecSA,
       
    45     EPolSpecEP
       
    46     };
       
    47 
       
    48 //////////////////////////////////////////////////////////////////////////////
       
    49 // CONSTANTS
       
    50 //////////////////////////////////////////////////////////////////////////////
       
    51 
       
    52 const TUint KPolicySelector_INBOUND     = 0x1;
       
    53 
       
    54 const TUint KPolicySelector_OUTBOUND    = 0x2;
       
    55 
       
    56 const TUint KPolicySelector_SYMMETRIC   = 
       
    57     (KPolicySelector_INBOUND | KPolicySelector_OUTBOUND);
       
    58     
       
    59 const TUint KPolicySelector_INTERFACE   = 0x4;
       
    60 
       
    61 typedef class CArrayPtrFlat<CSecpolBundleItem> CSecPolBundleList;
       
    62 
       
    63 //////////////////////////////////////////////////////////////////////////////
       
    64 // CLASS DECLARATIONS
       
    65 //////////////////////////////////////////////////////////////////////////////
       
    66 
       
    67 //////////////////////////////////////////////////////////////////////////////
       
    68 // class CPolicySpec
       
    69 //  Specify requirements for a single Security Association. The same 
       
    70 //  requirements can be shared by multiple policy bundles (policy actions).
       
    71 //////////////////////////////////////////////////////////////////////////////
       
    72 //
       
    73 class CPolicySpec : public CBase
       
    74     {
       
    75     friend class CSecurityPolicy;
       
    76 
       
    77     public:
       
    78         HBufC8 *iName;
       
    79 
       
    80         // Actual storage of the Identity strings. If present, the 
       
    81         // TSecurityAssocSpec will only have constant reference to this !
       
    82         HBufC8 *iRemoteIdentity;
       
    83         HBufC8 *iLocalIdentity;
       
    84         
       
    85         IMPORT_C static CPolicySpec* NewL();
       
    86 
       
    87         IMPORT_C void Construct();
       
    88 
       
    89         IMPORT_C static CPolicySpec* NewL(TDesC &aName, 
       
    90                                           TPolicySpecType iSpectype = EPolSpecSA);
       
    91 
       
    92         IMPORT_C void ConstructL(TDesC &aName, 
       
    93                                  TPolicySpecType aSpectype = EPolSpecSA);
       
    94 
       
    95         // Used to initialize with an existing CPolicySpec
       
    96         IMPORT_C static CPolicySpec* NewL(CPolicySpec *aPolSpec);
       
    97 
       
    98         IMPORT_C void ConstructL(CPolicySpec *aPolSpec);
       
    99         
       
   100         IMPORT_C ~CPolicySpec();
       
   101         
       
   102         TSecurityAssocSpec iSpec;
       
   103 
       
   104         TEpSpec iEpSpec;
       
   105 
       
   106         TPolicySpecType iSpectype;
       
   107 
       
   108     private:
       
   109         CPolicySpec();
       
   110 
       
   111         TSglQueLink iNext;
       
   112     };
       
   113 
       
   114 
       
   115 //////////////////////////////////////////////////////////////////////////////
       
   116 // class CSecpolBundleItem
       
   117 //////////////////////////////////////////////////////////////////////////////
       
   118 //  
       
   119 class CSecpolBundleItem : public CBase
       
   120     {
       
   121     friend class CSecurityPolicy;
       
   122     friend class CPolicySelector;
       
   123 
       
   124     public:
       
   125     
       
   126         ~CSecpolBundleItem();
       
   127     
       
   128         // Security Association specification
       
   129         CPolicySpec *iSpec;
       
   130         
       
   131         // Tunnel IP address     
       
   132         TInetAddr iTunnel;
       
   133               
       
   134         // Tunnel Endpoint name
       
   135         HBufC8* iTunnelEpName;
       
   136         
       
   137         HBufC* iTunnelEpFQDN;
       
   138         
       
   139         TSglQueLink iNext;
       
   140         
       
   141     };
       
   142 
       
   143 //////////////////////////////////////////////////////////////////////////////
       
   144 // class TSecpolBundle
       
   145 //////////////////////////////////////////////////////////////////////////////
       
   146 //  
       
   147 class TSecpolBundle : public TSglQue<CSecpolBundleItem>
       
   148     {
       
   149     public:
       
   150         TSecpolBundle(): 
       
   151 
       
   152         TSglQue<CSecpolBundleItem>(_FOFF(CSecpolBundleItem, iNext)) {};
       
   153     };
       
   154 
       
   155 typedef class TSglQueIter<CSecpolBundleItem> TSecpolBundleIter;
       
   156 
       
   157 //////////////////////////////////////////////////////////////////////////////
       
   158 // class CSAList
       
   159 //////////////////////////////////////////////////////////////////////////////
       
   160 //
       
   161 class CSAList : public CArrayFixFlat<CPolicySpec *>
       
   162     {
       
   163     public:
       
   164         IMPORT_C static CSAList* NewL(TInt aGranularity);
       
   165 
       
   166         IMPORT_C void Construct(TInt aGranularity);
       
   167 
       
   168         IMPORT_C static CSAList* NewL(CSAList *aSAList);
       
   169 
       
   170         IMPORT_C void ConstructL(CSAList *aSAList);
       
   171     private:
       
   172 
       
   173         CSAList(TInt aGranularity);
       
   174 
       
   175         CSAList(CSAList *aSAList);
       
   176     };
       
   177 
       
   178 //////////////////////////////////////////////////////////////////////////////
       
   179 // struct TSAPairNode
       
   180 //////////////////////////////////////////////////////////////////////////////
       
   181 //
       
   182 struct TSAPairNode
       
   183     {
       
   184     CPolicySpec *iOldSA;
       
   185     CPolicySpec *iNewSA;
       
   186     TSAPairNode *iNext;
       
   187     };
       
   188 
       
   189 //////////////////////////////////////////////////////////////////////////////
       
   190 // class CSAPairList
       
   191 //  Translation table used when copying a policy
       
   192 //////////////////////////////////////////////////////////////////////////////
       
   193 //
       
   194 class CSAPairList : public CBase
       
   195     {
       
   196     public:
       
   197         ~CSAPairList();
       
   198 
       
   199         void AddL(CPolicySpec *aOldSA, CPolicySpec *aNewSA);
       
   200 
       
   201         CPolicySpec *Translate(CPolicySpec *aOldSA);
       
   202     private:
       
   203 
       
   204         TSAPairNode *iList;
       
   205     };
       
   206 
       
   207 //////////////////////////////////////////////////////////////////////////////
       
   208 // class CSelectorList
       
   209 //////////////////////////////////////////////////////////////////////////////
       
   210 //
       
   211 class CSelectorList : public CArrayFixFlat<CPolicySelector *>
       
   212     {
       
   213     public:
       
   214         IMPORT_C static CSelectorList* NewL(TInt aGranularity);
       
   215 
       
   216         IMPORT_C void Construct(TInt aGranularity);
       
   217 
       
   218         IMPORT_C static CSelectorList* NewL(CSelectorList* CPolicySelector, 
       
   219                                             CSAPairList* aTable);
       
   220                                             
       
   221         IMPORT_C void ConstructL(CSelectorList *CPolicySelector,
       
   222                                  CSAPairList *aTable);
       
   223                                  
       
   224     private:
       
   225         CSelectorList(TInt aGranularity);
       
   226         
       
   227         CSelectorList(CSelectorList *CPolicySelector, CSAPairList *aTable);
       
   228     };
       
   229 
       
   230 //////////////////////////////////////////////////////////////////////////////
       
   231 // class CPolicySelector
       
   232 //  Map the selectors from an IP packet/connection into a bundle
       
   233 //////////////////////////////////////////////////////////////////////////////
       
   234 //
       
   235 class CPolicySelector : public CBase
       
   236     {
       
   237     friend class CSecurityPolicy;
       
   238     friend class TParser;
       
   239     public:
       
   240         IMPORT_C static CPolicySelector* NewL();
       
   241         IMPORT_C void Construct();
       
   242         IMPORT_C static CPolicySelector* NewL(CPolicySelector *aPS);
       
   243         IMPORT_C void ConstructL(CPolicySelector *aPS);
       
   244         
       
   245         IMPORT_C ~CPolicySelector();
       
   246         
       
   247         TInt Match(const TInetAddr& aSrc, 
       
   248                    const TInetAddr& aDst,
       
   249                    TInt aProtocol, 
       
   250                    TInt aIcmpType, 
       
   251                    TInt aIcmpCode, 
       
   252                    TInt aType) const;
       
   253         
       
   254         // Checks if this policy is using this SA
       
   255         IMPORT_C TBool UseSA(CPolicySpec* aSA,
       
   256                              TInetAddr* tunnel = NULL);
       
   257         
       
   258         // Return a Copy of the aIndex element of the SA bundle
       
   259         CSecpolBundleItem* FindBundleL(TInt aIndex);
       
   260         
       
   261         // Gets the list of FQDN names requiring DNS lookup
       
   262         void GetFQDNAddressListL(CSecPolBundleList& aPolList);
       
   263 
       
   264     private:
       
   265         CPolicySelector();
       
   266         
       
   267     public:
       
   268         
       
   269         //
       
   270         // If the addr is to match any address, the mask must all zeroes
       
   271         // If the addr is to match as is, the mask must be all ones
       
   272         // If the selector is to match a transport connection, the
       
   273         // port numbers are stored as non-zero in iDst and iSrc,
       
   274         // and iProtocol is non-zero.
       
   275         //
       
   276         TUint iDirection;
       
   277         TInetAddr iRemote;      // including port selector, if port non-zero
       
   278         TInetAddr iRemoteMask;  // only address part used, as a mask
       
   279         TInetAddr iLocal;       // including port selector, if port non-zero
       
   280         TInetAddr iLocalMask;   // only address part used, as a mask
       
   281         HBufC8* iRemSelEpName;  //rem endpoint name
       
   282         HBufC8* iRemMaskEpName; //rem mask ep name
       
   283         HBufC8* iLocSelEpName;  //loc endpoint name
       
   284         HBufC8* iLocMaskEpName; //loc mask endpoint name
       
   285         TInt iProtocol;         // used, if non-zero
       
   286         TInt iIcmpType;         // used, if != -1
       
   287         TInt iIcmpCode;         // used, if != -1
       
   288         TInt iType;				// used, if != -1
       
   289         TBool iDropAction;       // ETrue - drop action
       
   290         TInt iSequenceNumber;   // Selector's writing sequence
       
   291         TUint32 iCompWord;      // Selector's sorting properties, see
       
   292         TBool iGlobalSelector;  //flag specifying if this is a global selector
       
   293         TBool iIsFinal;
       
   294         TBool iIsMerge;
       
   295         TSecpolBundle iBundle;
       
   296         TSglQueLink iNext;
       
   297         TBuf<20> iInterface; ///< Limited to specific interface, if non-NULL
       
   298         TInt    iFQDNCount;
       
   299     };
       
   300 
       
   301 //////////////////////////////////////////////////////////////////////////////
       
   302 // class CSecurityPolicy
       
   303 //  Map the selectors from an IP packet/connection into a bundle
       
   304 //////////////////////////////////////////////////////////////////////////////
       
   305 //
       
   306 class CSecurityPolicy : public CBase
       
   307     {
       
   308     friend class CProtocolSecpol;
       
   309     public:
       
   310         IMPORT_C CSecurityPolicy();
       
   311         IMPORT_C void ConstructL(CSecurityPolicy *aSecPol);
       
   312         IMPORT_C void ConstructL();
       
   313         ~CSecurityPolicy();
       
   314 
       
   315         IMPORT_C CPolicySpec *FindSpec(const TDesC8 &aName);
       
   316 
       
   317         TSecpolBundle *FindBundle(TUint aDirection, 
       
   318                                   const TInetAddr &aSrc, 
       
   319                                   const TInetAddr &aDst,
       
   320                                   TInt aProtocol,
       
   321                                   TInt aIcmpType,
       
   322                                   TInt aIcmpCode,
       
   323                                   TInt aType);
       
   324 
       
   325         TInt SearchForEPNameL(TDesC& aTokenString);   
       
   326 
       
   327         //
       
   328         // The following methods are really intended to be used only
       
   329         // by the Policy parser, not for generic consumption!
       
   330         //
       
   331         void GetFQDNAddressListL(CSecPolBundleList& aPolList);
       
   332 
       
   333         void Add(CPolicySpec *aSpec) 
       
   334             {
       
   335             iSpecs->AppendL(aSpec);
       
   336             }
       
   337 
       
   338         void Add(CPolicySelector *aSelector) 
       
   339             {
       
   340             iSelectors->AppendL(aSelector);
       
   341             }
       
   342         
       
   343         inline CSAList *SAList()
       
   344             {
       
   345             return iSpecs;
       
   346             }
       
   347 
       
   348         inline void SetSAList(CSAList *aSAList) 
       
   349             {
       
   350             delete iSpecs; 
       
   351             iSpecs = aSAList;
       
   352             }
       
   353 
       
   354         inline CSelectorList *SelectorList()
       
   355             {
       
   356             return iSelectors;
       
   357             }
       
   358 
       
   359         inline void SetSelectorList(CSelectorList *aSelList)
       
   360             {
       
   361             delete iSelectors; 
       
   362             iSelectors = aSelList;
       
   363             }
       
   364         
       
   365         inline void SetFQDNCount(const TInt& aCount) 
       
   366             {
       
   367             iFQDNCount = aCount;
       
   368             }
       
   369 
       
   370         inline void IncFQDNCount(const TInt& aCount = 1) 
       
   371             {
       
   372             iFQDNCount += aCount;
       
   373             }
       
   374 
       
   375         inline const TInt FQDNCount() const
       
   376             {
       
   377             return iFQDNCount;
       
   378             }
       
   379             
       
   380     private:
       
   381 
       
   382         CSAPairList* CreateTranslationTableL(CSAList* aOldSAList, 
       
   383                                              CSAList* aNewSAList);
       
   384         
       
   385     private:
       
   386         
       
   387         CSAList* iSpecs;
       
   388 
       
   389         CSelectorList* iSelectors;
       
   390         
       
   391         TInt        iFQDNCount;
       
   392     };
       
   393     
       
   394 #endif