windows-nt/Source/XPSP1/NT/net/dhcp/client/inc/mdhcpcli.h
2020-09-26 16:20:57 +08:00

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/*++
Copyright (c) 1994 Microsoft Corporation
Module Name:
mdhcp.h
Abstract:
This file contains the header for data blocks of
client side APIs for the MCAST.
Author:
Munil Shah (munils) 02-Sept-97
Environment:
User Mode - Win32
Revision History:
--*/
#ifndef _MDHCPCLI_H_
#define _MDHCPCLI_H_
#include <madcapcl.h>
/***********************************************************************
* Structure Definitions
***********************************************************************/
// Mdhcp scopelist
typedef struct _MCAST_SCOPE_LIST {
DWORD ScopeLen;
DWORD ScopeCount;
MCAST_SCOPE_ENTRY pScopeBuf[1];
} MCAST_SCOPE_LIST, *PMCAST_SCOPE_LIST;
typedef struct _MCAST_SCOPE_LIST_OPT_V4 {
DWORD ScopeId;
DWORD LastAddr;
BYTE TTL;
BYTE NameCount;
} MCAST_SCOPE_LIST_OPT_V4, *PMCAST_SCOPE_LIST_OPT_V4;
typedef struct _MCAST_SCOPE_LIST_OPT_V6 {
BYTE ScopeId[16];
BYTE LastAddr[16];
BYTE TTL;
BYTE NameCount;
} MCAST_SCOPE_LIST_OPT_V6, *PMCAST_SCOPE_LIST_OPT_V6;
typedef struct _MCAST_SCOPE_LIST_OPT_LANG {
BYTE Flags;
BYTE Len;
BYTE Tag[1];
} MCAST_SCOPE_LIST_OPT_LANG, *PMCAST_SCOPE_LIST_OPT_LANG;
/***********************************************************************
* Macro Definitions
***********************************************************************/
// Locking of scope list.
#define LOCK_MSCOPE_LIST() EnterCriticalSection(&MadcapGlobalScopeListCritSect)
#define UNLOCK_MSCOPE_LIST() LeaveCriticalSection(&MadcapGlobalScopeListCritSect)
/***********************************************************************
* Global Data
***********************************************************************/
#ifdef MADCAP_DATA_ALLOCATE
#define MADCAP_EXTERN
#else
#define MADCAP_EXTERN extern
#endif
#define MADCAP_QUERY_SCOPE_LIST_RETRIES 2
#define MADCAP_MAX_RETRIES 4
#define MADCAP_QUERY_SCOPE_LIST_TIME 1
MADCAP_EXTERN CRITICAL_SECTION MadcapGlobalScopeListCritSect; // protects scopelist.
MADCAP_EXTERN PMCAST_SCOPE_LIST gMadcapScopeList;
MADCAP_EXTERN BOOL gMScopeQueryInProgress;
MADCAP_EXTERN HANDLE gMScopeQueryEvent;
MADCAP_EXTERN DWORD gMadcapClientApplVersion;
/***********************************************************************
* Function Protos.
***********************************************************************/
DWORD
CopyMScopeList(
IN OUT PMCAST_SCOPE_ENTRY pScopeList,
IN OUT PDWORD pScopeLen,
OUT PDWORD pScopeCount
);
BOOL
ShouldRequeryMScopeList();
DWORD
CreateMadcapContext(
IN OUT PDHCP_CONTEXT *ppContext,
IN LPMCAST_CLIENT_UID pRequestID,
IN DHCP_IP_ADDRESS IpAddress
);
DWORD
MadcapDoInform(
IN PDHCP_CONTEXT pContext
);
DWORD
StoreMScopeList(
IN PDHCP_CONTEXT pContext,
IN BOOL NewList
);
DWORD
ObtainMScopeList(
);
DWORD
GenMadcapClientUID(
OUT PBYTE pRequestID,
IN PDWORD pRequestIDLen
);
DWORD
ObtainMadcapAddress(
IN PDHCP_CONTEXT DhcpContext,
IN PIPNG_ADDRESS pScopeID,
IN PMCAST_LEASE_REQUEST pRenewRequest,
IN OUT PMCAST_LEASE_RESPONSE pAddrResponse
);
DWORD
RenewMadcapAddress(
IN PDHCP_CONTEXT DhcpContext,
IN PIPNG_ADDRESS pScopeID,
IN PMCAST_LEASE_REQUEST pRenewRequest,
IN OUT PMCAST_LEASE_RESPONSE pAddrResponse,
IN DHCP_IP_ADDRESS SelectedServer
);
DWORD
ReleaseMadcapAddress(
PDHCP_CONTEXT DhcpContext
);
DWORD
MadcapInitGlobalData(VOID);
#endif _MDHCPCLI_H_