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BUG#:8464
TITLE: Provider upcalls should not run under thread-level security context (2.9)

DESCRIPTION:

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// this work for additional information regarding copyright ownership.
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#ifndef Pegasus_AutoPThreadSecurity_h
#define Pegasus_AutoPThreadSecurity_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/OperationContextInternal.h>
#include <Pegasus/Common/Exception.h>
#include <Pegasus/ProviderManager2/Linkage.h>

#ifdef PEGASUS_ZOS_SECURITY
// This include file will not be provided in the OpenGroup CVS for now.
// Do NOT try to include it in your compile
# include <Pegasus/ProviderManager2/ProviderManagerzOS_inline.h>
#endif

PEGASUS_NAMESPACE_BEGIN

// Auto class to encapsulate enabling and disabling
// of the pthread_security on z/OS
// For all other platforms this should be an empty class
// Targets: avoid ifdefs and keep code readable(clean)
#ifndef PEGASUS_ZOS_SECURITY

// not z/OS == empty class
class AutoPThreadSecurity
{
public:
    AutoPThreadSecurity(const OperationContext& context, bool reverse=false) {};
};

#else

class AutoPThreadSecurity
{
public:
    AutoPThreadSecurity(const OperationContext& context, bool reverse=false):
        _reverse(reverse)
    {
        if (!_reverse)
        {
            int err_num=enablePThreadSecurity(context);
            if (err_num!=0)
            {
                // need a new CIMException for this
                throw CIMException(
                    CIM_ERR_ACCESS_DENIED,
                    String(strerror(err_num)));
            }
        }
        else
        {
            // remember the context, it will be needed in the destructor
            internalOpContextReference = &(context);
            revDisablePThreadSecurity();        
        }
    };

    ~AutoPThreadSecurity()
    {
        if (!_reverse)
        {
            disablePThreadSecurity();
        }
        else
        {
            revEnablePThreadSecurity(*internalOpContextReference);
        }
    };
private:
    const OperationContext * internalOpContextReference;
    bool _reverse;
};

#endif

PEGASUS_NAMESPACE_END

#endif