windows-nt/Source/XPSP1/NT/net/rras/ip/bootp/table.h

//============================================================================
// Copyright (c) 1995, Microsoft Corporation
//
// File:    table.h
//
// History:
//      Abolade Gbadegesin  August 31, 1995     Created
//
// Interface table and stats tables declarations
//============================================================================


#ifndef _TABLE_H_
#define _TABLE_H_


#define GETMODE_EXACT   0
#define GETMODE_FIRST   1
#define GETMODE_NEXT    2


//
// TYPE DEFINITIONS FOR INTERFACE MANAGEMENT
//


//
// struct:      IF_TABLE_ENTRY
//
// declares the components of an interface table entry
//

typedef struct _IF_TABLE_ENTRY {

    LIST_ENTRY          ITE_LinkByAddress;
    LIST_ENTRY          ITE_LinkByIndex;
    LIST_ENTRY          ITE_HTLinkByIndex;
    DWORD               ITE_Index;
    DWORD               ITE_Flags;
    IPBOOTP_IF_STATS    ITE_Stats;
    PIPBOOTP_IF_CONFIG  ITE_Config;
    PIPBOOTP_IF_BINDING ITE_Binding;
    SOCKET             *ITE_Sockets;

} IF_TABLE_ENTRY, *PIF_TABLE_ENTRY;


#define ITEFLAG_BOUND               ((DWORD)0x00000001)
#define ITEFLAG_ENABLED             ((DWORD)0x00000002)



//
// macros and definitions used by interface tables
//

#define IF_HASHTABLE_SIZE       29
#define IF_HASHVALUE(i)                     \
        (((i) + ((i) >> 8) + ((i) >> 16) + ((i) >> 24)) % IF_HASHTABLE_SIZE)

#define IF_IS_BOUND(i)      \
        ((i)->ITE_Flags & ITEFLAG_BOUND)
#define IF_IS_ENABLED(i)    \
        ((i)->ITE_Flags & ITEFLAG_ENABLED)
#define IF_IS_ACTIVE(i)     \
        (IF_IS_BOUND(i) && IF_IS_ENABLED(i))

#define IF_IS_UNBOUND(i)    !IF_IS_BOUND(i)
#define IF_IS_DISABLED(i)   !IF_IS_ENABLED(i)
#define IF_IS_INACTIVE(i)   !IF_IS_ACTIVE(i)


//
// struct:      IF_TABLE
//
// declares the structure of an interface table. consists of a hash-table
// of IF_TABLE_ENTRY structures hashed on interface index, and a list
// of all activated interfaces ordered by IP address
//

typedef struct _IF_TABLE {

    DWORD               IT_Created;
    LIST_ENTRY          IT_ListByAddress;
    LIST_ENTRY          IT_ListByIndex;
    LIST_ENTRY          IT_HashTableByIndex[IF_HASHTABLE_SIZE];
    READ_WRITE_LOCK     IT_RWL;

} IF_TABLE, *PIF_TABLE;

#define IF_TABLE_CREATED(pTable)    ((pTable)->IT_Created == 0x12345678)

DWORD
CreateIfTable(
    PIF_TABLE pTable
    );

DWORD
DeleteIfTable(
    PIF_TABLE pTable
    );

DWORD
CreateIfEntry(
    PIF_TABLE pTable,
    DWORD dwIndex,
    PVOID pConfig
    );

DWORD
DeleteIfEntry(
    PIF_TABLE pTable,
    DWORD dwIndex
    );

DWORD
ValidateIfConfig(
    PIPBOOTP_IF_CONFIG pic
    );

DWORD
CreateIfSocket(
    PIF_TABLE_ENTRY pITE
    );

DWORD
DeleteIfSocket(
    PIF_TABLE_ENTRY pITE
    );

DWORD
BindIfEntry(
    PIF_TABLE pTable,
    DWORD dwIndex,
    PIP_ADAPTER_BINDING_INFO pBinding
    );

DWORD
UnBindIfEntry(
    PIF_TABLE pTable,
    DWORD dwIndex
    );

DWORD
EnableIfEntry(
    PIF_TABLE pTable,
    DWORD dwIndex
    );

DWORD
DisableIfEntry(
    PIF_TABLE pTable,
    DWORD dwIndex
    );

DWORD
ConfigureIfEntry(
    PIF_TABLE pTable,
    DWORD dwIndex,
    PVOID pConfig
    );

PIF_TABLE_ENTRY
GetIfByIndex(
    PIF_TABLE pTable,
    DWORD dwIndex
    );

PIF_TABLE_ENTRY
GetIfByAddress(
    PIF_TABLE pTable,
    DWORD dwAddress,
    PDWORD pdwAddrIndex
    );

PIF_TABLE_ENTRY
GetIfByListIndex(
    PIF_TABLE pTable,
    DWORD dwIndex,
    DWORD dwGetMode,
    PDWORD pdwErr
    );
                             
DWORD
InsertIfByAddress(
    PIF_TABLE pTable,
    PIF_TABLE_ENTRY pITE
    );



#endif