windows-nt/Source/XPSP1/NT/net/dhcp/client/inc/optchg.h

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2020-09-26 03:20:57 -05:00
//================================================================================
// Copyright (c) 1997 Microsoft Corporation
// Author: RameshV
// Description: handles the noticiations and other mechanisms for parameter
// changes (options )
//================================================================================
#ifndef OPTCHG_H_INCLUDED
#define OPTCHG_H_INCLUDED
//================================================================================
// exported APIS
//================================================================================
DWORD // win32 status
DhcpAddParamChangeRequest( // add a new param change notification request
IN LPWSTR AdapterName, // for this adapter, can be NULL
IN LPBYTE ClassId, // what class id does this belong to?
IN DWORD ClassIdLength, // how big is this class id?
IN LPBYTE OptList, // this is the list of options of interest
IN DWORD OptListSize, // this is the # of bytes of above
IN BOOL IsVendor, // is this vendor specific?
IN DWORD ProcId, // which is the calling process?
IN DWORD Descriptor, // what is the unique descriptor in this process?
IN HANDLE Handle // what is the handle in the calling process space?
);
DWORD // win32 status
DhcpDelParamChangeRequest( // delete a particular request
IN DWORD ProcId, // the process id of the caller
IN HANDLE Handle // the handle as used by the calling process
);
DWORD // win32 status
DhcpMarkParamChangeRequests( // find all params that are affected and mark then as pending
IN LPWSTR AdapterName, // adapter of relevance
IN DWORD OptionId, // the option id itself
IN BOOL IsVendor, // is this vendor specific
IN LPBYTE ClassId // which class --> this must be something that has been ADD-CLASSED
);
typedef DWORD (*DHCP_NOTIFY_FUNC)( // this is the type of the fucntion that actually notifies clients of option change
IN DWORD ProcId, // <ProcId + Descriptor> make a unique key used for finding the event
IN DWORD Descriptor // --- on Win98, only Descriptor is really needed.
); // if return value is NOT error success, we delete this request
DWORD // win32 status
DhcpNotifyMarkedParamChangeRequests( // notify pending param change requests
IN DHCP_NOTIFY_FUNC NotifyHandler // call this function for each unique id that is present
);
DWORD // win32 status
DhcpNotifyClientOnParamChange( // notify clients
IN DWORD ProcId, // which process called this
IN DWORD Descriptor // unique descriptor for that process
);
DWORD // win32 status
DhcpInitializeParamChangeRequests( // initialize everything in this file
VOID
);
VOID
DhcpCleanupParamChangeRequests( // unwind this module
VOID
);
DWORD // win32 status
DhcpAddParamRequestChangeRequestList( // add to the request list the list of params registered for notifications
IN LPWSTR AdapterName, // which adatper is this request list being requested for?
IN LPBYTE Buffer, // buffer to add options to
IN OUT LPDWORD Size, // in: existing filled up size, out: total size filled up
IN LPBYTE ClassName, // ClassId
IN DWORD ClassLen // size of ClassId in bytes
);
#endif OPTCHG_H_INCLUDED