Source code of Windows XP (NT5)
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/*
* sesskey.h
*
* Copyright (c) 1995 by DataBeam Corporation, Lexington, KY
*
* Abstract:
* This is the interface file for the class CSessKeyContainer. This class
* manages the data associated with a Session Key. Session Key’s are used
* to uniquely identify an Application Protocol Session. The Application
* Protocol is identified by an Object Key and the particular session
* identified by an optional session ID. The CSessKeyContainer class uses an
* CObjectKey container to maintain the object key data internally. An
* unsigned short integer is used to hold the optional session ID.
*
* Caveats:
* None.
*
* Author:
* jbo
*/
#ifndef _SESSION_KEY_DATA_
#define _SESSION_KEY_DATA_
#include "objkey.h"
/*
* This is the typedef for the structure used to hold the session key data
* internally.
*/
typedef struct
{
CObjectKeyContainer *application_protocol_key;
GCCSessionID session_id;
}
SESSION_KEY;
/*
* Class definition:
*/
class CSessKeyContainer : public CRefCount
{
public:
CSessKeyContainer(PGCCSessionKey, PGCCError);
CSessKeyContainer(PSessionKey, PGCCError);
CSessKeyContainer(CSessKeyContainer *, PGCCError);
~CSessKeyContainer(void);
UINT LockSessionKeyData(void);
void UnLockSessionKeyData(void);
UINT GetGCCSessionKeyData(PGCCSessionKey, LPBYTE memory);
GCCError GetSessionKeyDataPDU(PSessionKey);
void FreeSessionKeyDataPDU(void);
BOOL IsThisYourApplicationKey(PGCCObjectKey);
BOOL IsThisYourApplicationKeyPDU(PKey);
BOOL IsThisYourSessionKeyPDU(PSessionKey);
#if 0 // LONCHANC: no one use them
BOOL IsThisYourSessionID(PSessionKey pSessKey)
{
return (m_InternalSessKey.session_id == pSessKey->session_id);
}
BOOL IsThisYourSessionID(PGCCSessionKey pGccSessKey)
{
return (m_InternalSessKey.session_id == pGccSessKey->session_id);
}
BOOL IsThisYourSessionID(UINT nSessionID)
{
return ((UINT) m_InternalSessKey.session_id == nSessionID);
}
#endif
friend BOOL operator== (const CSessKeyContainer&, const CSessKeyContainer&);
protected:
SESSION_KEY m_InternalSessKey;
UINT m_cbDataSize;
SessionKey m_SessionKeyPDU;
BOOL m_fValidSessionKeyPDU;
};
/*
* Comments explaining the public and protected class member functions
*/
/*
* CSessKeyContainer ( PGCCSessionKey session_key,
* PGCCError return_value);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This is the constructor for the CSessKeyContainer class which takes as
* input the "API" version of session key data, GCCSessionKey.
*
* Formal Parameters:
* session_key (i) The session key data to store.
* return_value (o) The output parameter used to indicate errors.
*
* Return Value:
* GCC_NO_ERROR - No error.
* GCC_ALLOCATION_FAILURE - Error creating an object using the
* "new" operator.
* GCC_BAD_SESSION_KEY - An invalid session key passed in.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* CSessKeyContainer ( PSessionKey session_key,
* PGCCError return_value);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This is the constructor for the CSessKeyContainer class which takes as
* input the "PDU" version of session key data, SessionKey.
*
* Formal Parameters:
* session_key (i) The session key data to store.
* return_value (o) The output parameter used to indicate errors.
*
* Return Value:
* GCC_NO_ERROR - No error.
* GCC_ALLOCATION_FAILURE - Error creating an object using the
* "new" operator.
* GCC_BAD_SESSION_KEY - An invalid session key passed in.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* CSessKeyContainer(CSessKeyContainer *session_key,
* PGCCError return_value);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This is the copy constructor for the CSessKeyContainer class which takes
* as input another CSessKeyContainer object.
*
* Formal Parameters:
* session_key (i) The CSessKeyContainer object to copy.
* return_value (o) The output parameter used to indicate errors.
*
* Return Value:
* GCC_NO_ERROR - No error.
* GCC_ALLOCATION_FAILURE - Error creating an object using the
* "new" operator.
* GCC_BAD_SESSION_KEY - An invalid session key passed in.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* ~SessionKeyData();
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This is the destructor for the CSessKeyContainer class. It is used to
* clean up any memory allocated during the life of this object.
*
* Formal Parameters:
* None.
*
* Return Value:
* None.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* UINT LockSessionKeyData ();
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to "lock" the "API" data for this object. This
* results in the lock count for this object being incremented. When the
* lock count transitions from 0 to 1, a calculation is made to determine
* how much memory will be needed to hold any "API" data which will
* be referenced by, but not held in, the GCCSessionKey structure
* which is filled in on a call to GetGCCSessionKeyData. This is the
* value returned by this routine in order to allow the calling object to
* allocate that amount of memory in preparation for the call to
* GetGCCSessionKeyData.
*
* Formal Parameters:
* None.
*
* Return Value:
* The amount of memory, if any, which will be needed to hold "API" data
* which is referenced by, but not held in, the GCCSessionKey structure
* provided as an output parameter to the GetGCCSessionKeyData call.
*
* Side Effects:
* The internal lock count is incremented.
*
* Caveats:
* The internal lock count is used in conjuction with an internal "free"
* flag as a mechanism for ensuring that this object remains in existance
* until all interested parties are through with it. The object remains
* valid (unless explicity deleted) until the lock count is zero and the
* "free" flag is set through a call to FreeSessionKeyData. This allows
* other objects to lock this object and be sure that it remains valid
* until they call UnLock which will decrement the internal lock count. A
* typical usage scenerio for this object would be: A CSessKeyContainer
* object is constructed and then passed off to any interested parties
* through a function call. On return from the function call, the
* FreeSessionKeyData call is made which will set the internal "free"
* flag. If no other parties have locked the object with a Lock call,
* then the CSessKeyContainer object will automatically delete itself when
* the FreeSessionKeyData call is made. If, however, any number of
* other parties has locked the object, it will remain in existence until
* each of them has unlocked the object through a call to UnLock.
*/
/*
* UINT GetGCCSessionKeyData (
* PGCCSessionKey session_key,
* LPSTR memory);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to retrieve the session key data from the
* CSessKeyContainer object in the "API" form of a GCCSessionKey.
*
* Formal Parameters:
* session_key (o) The GCCSessionKey structure to fill in.
* memory (o) The memory used to hold any data referenced by,
* but not held in, the output structure.
*
* Return Value:
* The amount of data, if any, written into the bulk memory block provided.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* void UnLockSessionKeyData ();
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to "unlock" the "API" data for this object. This
* results in the lock count for this object being decremented. When the
* lock count transitions from 1 to 0, a check is made to determine
* whether the object has been freed through a call to
* FreeSessionKeyData. If so, the object will automatically delete
* itself.
*
* Formal Parameters:
* None.
*
* Return Value:
* None.
*
* Side Effects:
* The internal lock count is decremented.
*
* Caveats:
* It is the responsibility of any party which locks a CSessKeyContainer
* object by calling Lock to also unlock the object with a call to UnLock.
* If the party calling UnLock did not construct the CSessKeyContainer
* object, it should assume the object to be invalid thereafter.
*/
/*
* GCCError GetSessionKeyDataPDU (
* PSessionKey session_key);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to retrieve the session key data from the
* CSessKeyContainer object in the "PDU" form of a SessionKey.
*
* Formal Parameters:
* session_key (o) The SessionKey structure to fill in.
*
* Return Value:
* GCC_NO_ERROR - No error.
* GCC_ALLOCATION_FAILURE - Error creating an object using the
* "new" operator.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* void FreeSessionKeyDataPDU ();
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to "free" the "PDU" data allocated for this object
* which is held internally in a Key structure.
*
* Formal Parameters:
* None.
*
* Return Value:
* None.
*
* Side Effects:
* The internal "free" flag is set.
*
* Caveats:
* This object should be assumed invalid after a call to
* FreeSessionKeyDataPDU has been made.
*/
/*
* BOOL IsThisYourApplicationKey (
* PGCCObjectKey application_key);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to determine whether the specified application key
* is held within this session key object. The application key is
* provided in "API" form.
*
* Formal Parameters:
* application_key (i) The application key to use for comparison.
*
* Return Value:
* TRUE - The specified application key is contained
* within this session key object.
* FALSE - The specified application key is not contained
* within this session key object.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* BOOL IsThisYourApplicationKeyPDU (
* PKey application_key);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to determine whether the specified application key
* is held within this session key object. The application key is
* provided in "PDU" form.
*
* Formal Parameters:
* application_key (i) The application key to use for comparison.
*
* Return Value:
* TRUE - The specified application key is contained
* within this session key object.
* FALSE - The specified application key is not contained
* within this session key object.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* BOOL IsThisYourSessionKeyPDU (
* PSessionKey session_key);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to determine whether the specified session key
* is equal in value to the session key maintained by this object.
*
* Formal Parameters:
* session_key (i) The session key to use for comparison.
*
* Return Value:
* TRUE - The specified session key is equal in value to
* the session key maintained by this object.
* FALSE - The specified session key is not equal in value
* to the session key maintained by this
* object.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
/*
* friend BOOL operator== (const CSessKeyContainer& session_key_1,
* const CSessKeyContainer& session_key_2);
*
* Public member function of CSessKeyContainer.
*
* Function Description:
* This routine is used to compare two CSessKeyContainer objects to determine
* whether or not they are equal in value.
*
* Formal Parameters:
* session_key_1 (i) The first CSessKeyContainer object to compare.
* session_key_2 (i) The other CSessKeyContainer object to compare.
*
* Return Value:
* TRUE - The two objects are equal in value.
* FALSE - The two objects are not equal in value.
*
* Side Effects:
* None.
*
* Caveats:
* None.
*/
#endif