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463 lines
13 KiB
463 lines
13 KiB
/*
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* sesskey.h
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*
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* Copyright (c) 1995 by DataBeam Corporation, Lexington, KY
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*
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* Abstract:
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* This is the interface file for the class CSessKeyContainer. This class
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* manages the data associated with a Session Key. Session Key’s are used
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* to uniquely identify an Application Protocol Session. The Application
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* Protocol is identified by an Object Key and the particular session
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* identified by an optional session ID. The CSessKeyContainer class uses an
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* CObjectKey container to maintain the object key data internally. An
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* unsigned short integer is used to hold the optional session ID.
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*
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* Caveats:
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* None.
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*
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* Author:
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* jbo
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*/
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#ifndef _SESSION_KEY_DATA_
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#define _SESSION_KEY_DATA_
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#include "objkey.h"
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/*
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* This is the typedef for the structure used to hold the session key data
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* internally.
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*/
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typedef struct
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{
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CObjectKeyContainer *application_protocol_key;
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GCCSessionID session_id;
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}
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SESSION_KEY;
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/*
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* Class definition:
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*/
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class CSessKeyContainer : public CRefCount
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{
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public:
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CSessKeyContainer(PGCCSessionKey, PGCCError);
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CSessKeyContainer(PSessionKey, PGCCError);
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CSessKeyContainer(CSessKeyContainer *, PGCCError);
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~CSessKeyContainer(void);
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UINT LockSessionKeyData(void);
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void UnLockSessionKeyData(void);
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UINT GetGCCSessionKeyData(PGCCSessionKey, LPBYTE memory);
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GCCError GetSessionKeyDataPDU(PSessionKey);
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void FreeSessionKeyDataPDU(void);
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BOOL IsThisYourApplicationKey(PGCCObjectKey);
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BOOL IsThisYourApplicationKeyPDU(PKey);
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BOOL IsThisYourSessionKeyPDU(PSessionKey);
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#if 0 // LONCHANC: no one use them
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BOOL IsThisYourSessionID(PSessionKey pSessKey)
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{
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return (m_InternalSessKey.session_id == pSessKey->session_id);
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}
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BOOL IsThisYourSessionID(PGCCSessionKey pGccSessKey)
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{
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return (m_InternalSessKey.session_id == pGccSessKey->session_id);
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}
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BOOL IsThisYourSessionID(UINT nSessionID)
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{
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return ((UINT) m_InternalSessKey.session_id == nSessionID);
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}
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#endif
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friend BOOL operator== (const CSessKeyContainer&, const CSessKeyContainer&);
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protected:
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SESSION_KEY m_InternalSessKey;
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UINT m_cbDataSize;
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SessionKey m_SessionKeyPDU;
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BOOL m_fValidSessionKeyPDU;
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};
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/*
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* Comments explaining the public and protected class member functions
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*/
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/*
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* CSessKeyContainer ( PGCCSessionKey session_key,
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* PGCCError return_value);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This is the constructor for the CSessKeyContainer class which takes as
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* input the "API" version of session key data, GCCSessionKey.
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*
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* Formal Parameters:
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* session_key (i) The session key data to store.
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* return_value (o) The output parameter used to indicate errors.
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*
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* Return Value:
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* GCC_NO_ERROR - No error.
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* GCC_ALLOCATION_FAILURE - Error creating an object using the
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* "new" operator.
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* GCC_BAD_SESSION_KEY - An invalid session key passed in.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* CSessKeyContainer ( PSessionKey session_key,
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* PGCCError return_value);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This is the constructor for the CSessKeyContainer class which takes as
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* input the "PDU" version of session key data, SessionKey.
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*
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* Formal Parameters:
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* session_key (i) The session key data to store.
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* return_value (o) The output parameter used to indicate errors.
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*
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* Return Value:
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* GCC_NO_ERROR - No error.
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* GCC_ALLOCATION_FAILURE - Error creating an object using the
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* "new" operator.
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* GCC_BAD_SESSION_KEY - An invalid session key passed in.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* CSessKeyContainer(CSessKeyContainer *session_key,
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* PGCCError return_value);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This is the copy constructor for the CSessKeyContainer class which takes
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* as input another CSessKeyContainer object.
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*
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* Formal Parameters:
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* session_key (i) The CSessKeyContainer object to copy.
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* return_value (o) The output parameter used to indicate errors.
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*
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* Return Value:
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* GCC_NO_ERROR - No error.
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* GCC_ALLOCATION_FAILURE - Error creating an object using the
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* "new" operator.
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* GCC_BAD_SESSION_KEY - An invalid session key passed in.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* ~SessionKeyData();
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This is the destructor for the CSessKeyContainer class. It is used to
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* clean up any memory allocated during the life of this object.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* None.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* UINT LockSessionKeyData ();
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to "lock" the "API" data for this object. This
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* results in the lock count for this object being incremented. When the
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* lock count transitions from 0 to 1, a calculation is made to determine
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* how much memory will be needed to hold any "API" data which will
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* be referenced by, but not held in, the GCCSessionKey structure
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* which is filled in on a call to GetGCCSessionKeyData. This is the
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* value returned by this routine in order to allow the calling object to
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* allocate that amount of memory in preparation for the call to
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* GetGCCSessionKeyData.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* The amount of memory, if any, which will be needed to hold "API" data
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* which is referenced by, but not held in, the GCCSessionKey structure
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* provided as an output parameter to the GetGCCSessionKeyData call.
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*
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* Side Effects:
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* The internal lock count is incremented.
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*
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* Caveats:
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* The internal lock count is used in conjuction with an internal "free"
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* flag as a mechanism for ensuring that this object remains in existance
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* until all interested parties are through with it. The object remains
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* valid (unless explicity deleted) until the lock count is zero and the
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* "free" flag is set through a call to FreeSessionKeyData. This allows
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* other objects to lock this object and be sure that it remains valid
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* until they call UnLock which will decrement the internal lock count. A
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* typical usage scenerio for this object would be: A CSessKeyContainer
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* object is constructed and then passed off to any interested parties
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* through a function call. On return from the function call, the
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* FreeSessionKeyData call is made which will set the internal "free"
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* flag. If no other parties have locked the object with a Lock call,
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* then the CSessKeyContainer object will automatically delete itself when
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* the FreeSessionKeyData call is made. If, however, any number of
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* other parties has locked the object, it will remain in existence until
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* each of them has unlocked the object through a call to UnLock.
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*/
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/*
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* UINT GetGCCSessionKeyData (
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* PGCCSessionKey session_key,
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* LPSTR memory);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to retrieve the session key data from the
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* CSessKeyContainer object in the "API" form of a GCCSessionKey.
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*
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* Formal Parameters:
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* session_key (o) The GCCSessionKey structure to fill in.
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* memory (o) The memory used to hold any data referenced by,
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* but not held in, the output structure.
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*
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* Return Value:
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* The amount of data, if any, written into the bulk memory block provided.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* void UnLockSessionKeyData ();
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to "unlock" the "API" data for this object. This
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* results in the lock count for this object being decremented. When the
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* lock count transitions from 1 to 0, a check is made to determine
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* whether the object has been freed through a call to
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* FreeSessionKeyData. If so, the object will automatically delete
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* itself.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* None.
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*
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* Side Effects:
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* The internal lock count is decremented.
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*
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* Caveats:
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* It is the responsibility of any party which locks a CSessKeyContainer
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* object by calling Lock to also unlock the object with a call to UnLock.
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* If the party calling UnLock did not construct the CSessKeyContainer
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* object, it should assume the object to be invalid thereafter.
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*/
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/*
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* GCCError GetSessionKeyDataPDU (
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* PSessionKey session_key);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to retrieve the session key data from the
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* CSessKeyContainer object in the "PDU" form of a SessionKey.
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*
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* Formal Parameters:
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* session_key (o) The SessionKey structure to fill in.
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*
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* Return Value:
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* GCC_NO_ERROR - No error.
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* GCC_ALLOCATION_FAILURE - Error creating an object using the
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* "new" operator.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* void FreeSessionKeyDataPDU ();
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to "free" the "PDU" data allocated for this object
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* which is held internally in a Key structure.
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*
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* Formal Parameters:
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* None.
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*
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* Return Value:
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* None.
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*
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* Side Effects:
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* The internal "free" flag is set.
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*
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* Caveats:
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* This object should be assumed invalid after a call to
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* FreeSessionKeyDataPDU has been made.
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*/
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/*
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* BOOL IsThisYourApplicationKey (
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* PGCCObjectKey application_key);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to determine whether the specified application key
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* is held within this session key object. The application key is
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* provided in "API" form.
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*
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* Formal Parameters:
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* application_key (i) The application key to use for comparison.
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*
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* Return Value:
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* TRUE - The specified application key is contained
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* within this session key object.
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* FALSE - The specified application key is not contained
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* within this session key object.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* BOOL IsThisYourApplicationKeyPDU (
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* PKey application_key);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to determine whether the specified application key
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* is held within this session key object. The application key is
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* provided in "PDU" form.
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*
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* Formal Parameters:
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* application_key (i) The application key to use for comparison.
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*
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* Return Value:
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* TRUE - The specified application key is contained
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* within this session key object.
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* FALSE - The specified application key is not contained
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* within this session key object.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* BOOL IsThisYourSessionKeyPDU (
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* PSessionKey session_key);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to determine whether the specified session key
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* is equal in value to the session key maintained by this object.
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*
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* Formal Parameters:
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* session_key (i) The session key to use for comparison.
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*
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* Return Value:
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* TRUE - The specified session key is equal in value to
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* the session key maintained by this object.
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* FALSE - The specified session key is not equal in value
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* to the session key maintained by this
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* object.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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/*
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* friend BOOL operator== (const CSessKeyContainer& session_key_1,
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* const CSessKeyContainer& session_key_2);
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*
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* Public member function of CSessKeyContainer.
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*
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* Function Description:
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* This routine is used to compare two CSessKeyContainer objects to determine
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* whether or not they are equal in value.
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*
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* Formal Parameters:
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* session_key_1 (i) The first CSessKeyContainer object to compare.
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* session_key_2 (i) The other CSessKeyContainer object to compare.
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*
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* Return Value:
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* TRUE - The two objects are equal in value.
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* FALSE - The two objects are not equal in value.
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*
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* Side Effects:
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* None.
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*
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* Caveats:
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* None.
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*/
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#endif
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