Source code of Windows XP (NT5)
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//=============================================================================
// Copyright (c) 1997 Microsoft Corporation
//
// File Name: macros.h
//
// Abstract:
// This file contains many macros and #defines.
//
// Author: K.S.Lokesh (lokeshs@) 11-1-97
//
// Revision History:
//
//=============================================================================
#ifndef _MACROS_H_
#define _MACROS_H
//------------------------------------------------------------------------------
// DEBUG FLAGS
//------------------------------------------------------------------------------
//kslksl
#define SET_MOST_DEBUG 0
// check for memory leaks
#define DEBUG_FLAGS_MEM_ALLOC (1 | SET_MOST_DEBUG)
#define DEUBG_FLAGS_MEM_LEAK (DBG | DEBUG_FLAGS_MEM_ALLOC)
// assert on error
#define DEBUG_FLAGS_ASSERT_ON_ERRORS (0 | SET_MOST_DEBUG)
//------------------------------------------------------------------------------
// TMP DEBUGGING //DebugCheck
//------------------------------------------------------------------------------
extern DWORD DEBUG_CHECK_LOW_INDEX_ARRAY[100][2];
extern DWORD DebugIgmpIndex;
#define DEBUG_CHECK_LOW_INDEX(i) {\
DebugIgmpIndex = (++DebugIgmpIndex) % 100; \
DEBUG_CHECK_LOW_INDEX_ARRAY[DebugIgmpIndex][0] = i;\
DEBUG_CHECK_LOW_INDEX_ARRAY[DebugIgmpIndex][1] = g_TimerStruct.TableLowIndex;\
if (g_TimerStruct.TableLowIndex>64 && g_TimerStruct.TableLowIndex!=~0) DbgBreakPoint();\
}
// Trace2(ENTER, "%%%%%%LowIndex:(%d) %0x:%d", i, g_TimerStruct.TableLowIndex); \
//------------------------------------------------------------------------------
// some global definitions
//------------------------------------------------------------------------------
#ifndef IPADDR
typedef DWORD IPADDR;
#endif
#define PROTO_IP_IGMP_PROXY 11
#define INTERSECTION 3
#define RULE5 5
//------------------------------------------------------------------------------
// interface table macros
//------------------------------------------------------------------------------
#define IF_HASH_VALUE(_index) ((_index) % g_pIfTable->NumBuckets)
#define ACQUIRE_IF_LOCK_EXCLUSIVE(_IfIndex, _proc) \
AcquireDynamicRWLock(&g_pIfTable->aIfBucketDRWL[IF_HASH_VALUE(_IfIndex)],\
LOCK_MODE_WRITE, \
&g_DynamicRWLStore)
#define RELEASE_IF_LOCK_EXCLUSIVE(_IfIndex, _proc) \
ReleaseDynamicRWLock(&g_pIfTable->aIfBucketDRWL[IF_HASH_VALUE(_IfIndex)], \
LOCK_MODE_WRITE, \
&g_DynamicRWLStore)
#define ACQUIRE_IF_LOCK_SHARED(_IfIndex, _proc) \
AcquireDynamicRWLock(&g_pIfTable->aIfBucketDRWL[IF_HASH_VALUE(_IfIndex)], \
LOCK_MODE_READ, \
&g_DynamicRWLStore)
#define RELEASE_IF_LOCK_SHARED(_IfIndex, _proc) \
ReleaseDynamicRWLock(&g_pIfTable->aIfBucketDRWL[IF_HASH_VALUE(_IfIndex)], \
LOCK_MODE_READ, \
&g_DynamicRWLStore)
#define ACQUIRE_IF_LIST_LOCK(_proc) \
ENTER_CRITICAL_SECTION(&g_pIfTable->IfLists_CS, "g_IfListsCS", _proc);
#define RELEASE_IF_LIST_LOCK(_proc) \
LEAVE_CRITICAL_SECTION(&g_pIfTable->IfLists_CS, "g_IfListsCS", _proc);
#define ACQUIRE_IF_GROUP_LIST_LOCK(_IfIndex, _proc) \
AcquireDynamicCSLock(&g_pIfTable->aIfBucketDCS[IF_HASH_VALUE(_IfIndex)],\
&g_DynamicCSStore)
#define RELEASE_IF_GROUP_LIST_LOCK(_IfIndex, _proc) \
ReleaseDynamicCSLock(&g_pIfTable->aIfBucketDCS[IF_HASH_VALUE(_IfIndex)],\
&g_DynamicCSStore)
//------------------------------------------------------------------------------
// Proxy table macros
//------------------------------------------------------------------------------
#define PROXY_HASH_VALUE(_group) \
(( ((_group)&0xFF000000)+((_group)&0xFF)) % (PROXY_HASH_TABLE_SZ))
//------------------------------------------------------------------------------
// protocol type macros/interface type macros
//------------------------------------------------------------------------------
#define IS_PROTOCOL_TYPE_PROXY(_pite) \
((_pite)->Config.IgmpProtocolType==IGMP_PROXY \
||(_pite)->Config.IgmpProtocolType==IGMP_PROXY_V3)
#define IS_PROTOCOL_TYPE_PROXY_V2(_pite) \
((_pite)->Config.IgmpProtocolType==IGMP_PROXY)
#define IS_PROTOCOL_TYPE_PROXY_V3(_pite) \
((_pite)->Config.IgmpProtocolType==IGMP_PROXY_V3)
#define IS_PROTOCOL_TYPE_IGMPV1(_pite) \
((_pite)->Config.IgmpProtocolType==IGMP_ROUTER_V1)
#define IS_PROTOCOL_TYPE_IGMPV2(_pite) \
((_pite)->Config.IgmpProtocolType==IGMP_ROUTER_V2)
#define IS_PROTOCOL_TYPE_IGMPV3(_pite) \
((_pite)->Config.IgmpProtocolType==IGMP_ROUTER_V3)
#define IS_PROTOCOL_TYPE_ROUTER(_pite) \
(!IS_PROTOCOL_TYPE_PROXY(_pite))
#define IGMP_MIB_IF_CONFIG_SIZE_V3(pConfig) \
IgmpMibIfConfigSize(pConfig)
// internally, FfType does not have protocol type, but when I expose it outside,
// I have to add proxy type if it is a proxy interface.
#define GET_EXTERNAL_IF_TYPE(_pite) \
IS_PROTOCOL_TYPE_PROXY(_pite) ? ((_pite->IfType)|IGMP_IF_PROXY) \
: (_pite)->IfType
#define ACQUIRE_PROXY_ALERT_LOCK(proc) \
ENTER_CRITICAL_SECTION(&g_ProxyAlertCS, "g_ProxyAlertCS", proc)
#define RELEASE_PROXY_ALERT_LOCK(proc) \
LEAVE_CRITICAL_SECTION(&g_ProxyAlertCS, "g_ProxyAlertCS", proc)
//-------------------------------------------------------------------
// ENUM MACROS
//-------------------------------------------------------------------
#define ACQUIRE_ENUM_LOCK_EXCLUSIVE(_proc) \
ACQUIRE_WRITE_LOCK(&g_EnumRWLock, "g_EnumRWLock", _proc);
#define RELEASE_ENUM_LOCK_EXCLUSIVE(_proc) \
RELEASE_WRITE_LOCK(&g_EnumRWLock, "g_EnumRWLock", _proc);
#define ACQUIRE_ENUM_LOCK_SHARED(_proc) \
ACQUIRE_READ_LOCK(&g_EnumRWLock, "g_EnumRWLock", _proc);
#define RELEASE_ENUM_LOCK_SHARED(_proc) \
RELEASE_READ_LOCK(&g_EnumRWLock, "g_EnumRWLock", _proc);
//------------------------------------------------------------------------------
// group table macros
//------------------------------------------------------------------------------
#define GROUP_HASH_VALUE(_group) \
(((_group) & 0xFF)%GROUP_HASH_TABLE_SZ)
#define ACQUIRE_GROUP_LOCK(_group, _proc) {\
ACQUIRE_ENUM_LOCK_SHARED(_proc);\
AcquireDynamicCSLockedList( \
&g_pGroupTable->HashTableByGroup[GROUP_HASH_VALUE(_group)],\
&g_DynamicCSStore);\
}
#define RELEASE_GROUP_LOCK(_group, _proc) {\
ReleaseDynamicCSLockedList( \
&g_pGroupTable->HashTableByGroup[GROUP_HASH_VALUE(_group)],\
&g_DynamicCSStore);\
RELEASE_ENUM_LOCK_SHARED(_proc);\
}
#define ACQUIRE_GROUP_LIST_LOCK(_proc) { \
ACQUIRE_LIST_LOCK(&g_pGroupTable->ListByGroup, \
"g_pGroupTable->ListByGroup", _proc);\
}
#define RELEASE_GROUP_LIST_LOCK(_proc) { \
RELEASE_LIST_LOCK(&g_pGroupTable->ListByGroup, \
"g_pGroupTable->ListByGroup", _proc);\
}
//
// merge the groups list if the number of entries in the new list is more than 50
// or if the size of new list is greater than 4 times the size of actual list
// but in any case not smaller than 10
//
#define MERGE_GROUP_LISTS_REQUIRED() \
( (g_pGroupTable->NumGroupsInNewList > 50) \
|| ( (g_pGroupTable->NumGroupsInNewList > \
g_Info.CurrentGroupMemberships/4) \
&& (g_pGroupTable->NumGroupsInNewList>10) ))
// insert all elements in l2 at the end of l1, and reinitialize l2
#define CONCATENATE_LISTS(l1, l2) { \
l2.Flink->Blink = l1.Blink; \
l1.Blink->Flink = l2.Flink; \
l2.Blink->Flink = &l1; \
l1.Blink = l2.Blink; \
InitializeListHead(&l2); \
}
#define MERGE_IF_GROUPS_LISTS_REQUIRED(_pite) \
(_pite->NumGIEntriesInNewList > 20)
#define MERGE_PROXY_LISTS_REQUIRED(_pite) \
(_pite->NumGIEntriesInNewList > 20)
//------------------------------------------------------------------------------
// SOCKETS MACROS
//------------------------------------------------------------------------------
#define ACQUIRE_SOCKETS_LOCK_EXCLUSIVE(_proc) \
ACQUIRE_WRITE_LOCK(&g_SocketsRWLock, "g_SocketsRWLock", _proc);
#define RELEASE_SOCKETS_LOCK_EXCLUSIVE(_proc) \
RELEASE_WRITE_LOCK(&g_SocketsRWLock, "g_SocketsRWLock", _proc);
#define ACQUIRE_SOCKETS_LOCK_SHARED(_proc) \
ACQUIRE_READ_LOCK(&g_SocketsRWLock, "g_SocketsRWLock", _proc);
#define RELEASE_SOCKETS_LOCK_SHARED(_proc) \
RELEASE_READ_LOCK(&g_SocketsRWLock, "g_SocketsRWLock", _proc);
//------------------------------------------------------------------------------
// RAS MACROS
//------------------------------------------------------------------------------
#define IS_NOT_RAS_IF(flag) ((flag) == IGMP_IF_NOT_RAS)
#define IS_RAS_SERVER_IF(flag) ((flag) == IGMP_IF_RAS_SERVER)
#define IS_RAS_CLIENT_IF(flag) ((flag) == IGMP_IF_RAS_CLIENT)
#define IS_RAS_ROUTER_IF(flag) ((flag) == IGMP_IF_RAS_ROUTER)
#define RAS_HASH_VALUE(ClientAddr) \
(((ClientAddr) & 0xFF)%(RAS_HASH_TABLE_SZ))
//------------------------------------------------------------------------------
// PACKET MACROS
//------------------------------------------------------------------------------
// This macro compares two IP addresses in network order by
// masking off each pair of octets and doing a subtraction;
// the result of the final subtraction is stored in the third argument.
//
#define INET_CMP(a,b,c) \
(((c) = (((a) & 0x000000ff) - ((b) & 0x000000ff))) ? (c) : \
(((c) = (((a) & 0x0000ff00) - ((b) & 0x0000ff00))) ? (c) : \
(((c) = (((a) & 0x00ff0000) - ((b) & 0x00ff0000))) ? (c) : \
(((c) = ((((a)>>8) & 0x00ff0000) - (((b)>>8) & 0x00ff0000)))))))
#define PRINT_IPADDR(x) \
((x)&0x000000ff),(((x)&0x0000ff00)>>8),(((x)&0x00ff0000)>>16),(((x)&0xff000000)>>24)
//------------------------------------------------------------------------------
// Interface #defines and Macros
//------------------------------------------------------------------------------
//
// status flags
//
#define IF_CREATED_FLAG 0x00000001
#define CREATED_FLAG 0x00000001
#define IF_BOUND_FLAG 0x00000002
#define IF_ENABLED_FLAG 0x00000004
#define IF_DELETED_FLAG 0x80000000
#define DELETED_FLAG 0x80000000
#define MGM_ENABLED_IGMPRTR_FLAG 0x00001000
#define IGMPRTR_MPROTOCOL_PRESENT_FLAG 0x00002000
// interface timers etc have not been set. socket not activated. so enumeration
// might not be correct. Further, if deleting the entry, timers/sockets can
// be ignored
#define IF_ACTIVATED_FLAG 0x00000008
#define IF_DEACTIVATE_DELETE_FLAG 0x00000010
//
// macros for status flags
//
#define IS_IGMPRTR_ENABLED_BY_MGM(pite) \
(pite->Status & MGM_ENABLED_IGMPRTR_FLAG)
#define MGM_ENABLE_IGMPRTR(pite) \
(pite->Status |= MGM_ENABLED_IGMPRTR_FLAG)
#define MGM_DISABLE_IGMPRTR(pite) {\
(pite->Status &= ~MGM_ENABLED_IGMPRTR_FLAG); \
(pite->Status &= ~IGMPRTR_MPROTOCOL_PRESENT_FLAG);\
}
#define IS_MPROTOCOL_PRESENT_ON_IGMPRTR(pite) \
(pite->Status & IGMPRTR_MPROTOCOL_PRESENT_FLAG)
#define SET_MPROTOCOL_PRESENT_ON_IGMPRTR(pite) \
(pite->Status |= IGMPRTR_MPROTOCOL_PRESENT_FLAG)
#define SET_MPROTOCOL_ABSENT_ON_IGMPRTR(pite) \
(pite->Status &= ~IGMPRTR_MPROTOCOL_PRESENT_FLAG)
#define IS_IF_BOUND(pite) \
((pite)->Status&IF_BOUND_FLAG)
#define IS_IF_ENABLED_BY_RTRMGR(pite) \
((pite)->Status&IF_ENABLED_FLAG)
#define IS_IF_ENABLED_IN_CONFIG(pite) \
(IGMP_ENABLED_FLAG_SET((pite)->Config.Flags))
#define IS_IF_ENABLED(pite) \
( IS_IF_ENABLED_BY_RTRMGR(pite) && IS_IF_ENABLED_IN_CONFIG(pite) )
#define IS_IF_ENABLED_BOUND(pite) \
(IS_IF_ENABLED(pite)&&IS_IF_BOUND(pite))
#define IS_IF_DELETED(pite) \
((pite)->Status&IF_DELETED_FLAG)
#define IS_IF_NOT_DELETED(pite) \
(!((pite)->Status&IF_DELETED_FLAG))
#define IS_IF_ACTIVATED(pite) \
( !((pite)->Status&IF_DELETED_FLAG) && ((pite)->Status&IF_ACTIVATED_FLAG) )
//-------------------------------
// QUERIER STATES 0x<Querier><0>
//-------------------------------
#define QUERIER 0x10
#define IS_IF_VER2(pite) IS_PROTOCOL_TYPE_IGMPV2(pite)
#define IS_IF_VER1(pite) IS_PROTOCOL_TYPE_IGMPV1(pite)
#define IS_IF_VER3(pite) IS_PROTOCOL_TYPE_IGMPV3(pite)
#define GET_IF_VERSION(_pite) (_pite)->Config.IgmpProtocolType
#define IS_QUERIER(pite) ((pite)->Info.QuerierState & QUERIER)
//
// interlocked operations not required, as state is of type uchar
//
#define SET_QUERIER_STATE_QUERIER(state) (state |= 0x10)
#define SET_QUERIER_STATE_NON_QUERIER(state) (state &= 0x01)
#define IF_PROCESS_GRPQUERY(pite) \
( (IS_IF_VER2(pite)||IS_IF_VER3(pite)) && !IS_RAS_SERVER_IF(pite->IfType) )
#define IF_PROCESS_LEAVES(pite) \
( IS_IF_VER2(pite) && (IS_QUERIER(pite)) && !IS_RAS_SERVER_IF(pite->IfType))
#define GI_PROCESS_GRPQUERY(pite, pgie) \
( IF_PROCESS_GRPQUERY(pite)&& ((pgie->Version==2)||(pgie->Version==3)) )
#define CAN_ADD_GROUPS_TO_MGM(pite) \
( (IS_IGMPRTR_ENABLED_BY_MGM(pite)) \
&& (IS_MPROTOCOL_PRESENT_ON_IGMPRTR(pite) || (IS_QUERIER(pite))) \
)
//
// INTERFACE STATE
//
#define GET_EXTERNAL_IF_STATE(pite, State) {\
State = 0;\
if (IS_IF_ENABLED_BY_RTRMGR(pite)) \
State |= IGMP_STATE_ENABLED_BY_RTRMGR; \
if (IS_IF_ENABLED_IN_CONFIG(pite))\
State |= IGMP_STATE_ENABLED_IN_CONFIG; \
if (IS_PROTOCOL_TYPE_ROUTER(pite)) {\
if (IS_IGMPRTR_ENABLED_BY_MGM(pite)) \
State |= IGMP_STATE_ENABLED_BY_MGM; \
if (CAN_ADD_GROUPS_TO_MGM(pite)) \
State |= IGMP_STATE_MGM_JOINS_ENABLED; \
} \
else \
State |= IGMP_STATE_ENABLED_BY_MGM; \
\
if (IS_IF_BOUND(pite)) \
State |= IGMP_STATE_BOUND;\
}
//
//filter macros
//
#define GMI TRUE
#define LMI FALSE
#define STATIC 0xff
#define MGM_YES TRUE
#define MGM_NO FALSE
//------------------------------------------------------------------------------
// other locking macros
//------------------------------------------------------------------------------
#define ACQUIRE_GLOBAL_LOCK(proc) ENTER_CRITICAL_SECTION(&g_CS, "g_CS", proc)
#define RELEASE_GLOBAL_LOCK(proc) LEAVE_CRITICAL_SECTION(&g_CS, "g_CS", proc)
//
// instead of using goto:end to go to the end of the block, use the following
//
#define BEGIN_BREAKOUT_BLOCK1 do
#define GOTO_END_BLOCK1 goto END_BREAKOUT_BLOCK_1
#define END_BREAKOUT_BLOCK1 while(FALSE); END_BREAKOUT_BLOCK_1:
#define BEGIN_BREAKOUT_BLOCK2 do
#define GOTO_END_BLOCK2 goto END_BREAKOUT_BLOCK_2
#define END_BREAKOUT_BLOCK2 while(FALSE); END_BREAKOUT_BLOCK_2:
//------------------------------------------------------------------------------
// memory allocation/deallocation macros
//------------------------------------------------------------------------------
#if DEBUG_FLAGS_MEM_ALLOC
typedef struct _MEM_HDR {
LIST_ENTRY Link;
ULONG Signature;
ULONG Id;
ULONG IfIndex;
PDWORD Tail;
} MEM_HDR, *PMEM_HDR;
PVOID
IgmpDebugAlloc(
DWORD sz,
DWORD Flags,
DWORD Id,
DWORD IfIndex
);
VOID
IgmpDebugFree(
PVOID mem
);
VOID
DebugScanMemory(
);
VOID
DebugScanMemoryInterface(
DWORD IfIndex
);
#define IGMP_ALLOC(sz,Id,If) IgmpDebugAlloc((sz),0,Id,If)
#define IGMP_ALLOC_AND_ZERO(sz,Id,If) IgmpDebugAlloc((sz),HEAP_ZERO_MEMORY,Id,If)
#define IGMP_FREE(p) {\
IgmpDebugFree(p);\
}
#define IGMP_FREE_NOT_NULL(p) if (p) IGMP_FREE(p)
#else
#define IGMP_ALLOC(sz,Id,If) HeapAlloc(g_Heap,0,(sz))
#define IGMP_ALLOC_AND_ZERO(sz,Id,If) HeapAlloc(g_Heap,HEAP_ZERO_MEMORY,(sz))
//deldel
//#define IGMP_FREE(p) HeapFree(g_Heap, 0, (p))
//#define IGMP_FREE_NOT_NULL(p) ((p) ? IGMP_FREE(p) : TRUE)
#define IGMP_FREE(p) {\
HeapFree(g_Heap, 0, (p));\
}
// Trace1(ENTER1, "Freed heap:%0x", PtrToUlong(p));\
#define IGMP_FREE_NOT_NULL(p) if (p)IGMP_FREE(p)
#define IgmpDebugAlloc(sz,Flags,Id,IfIndex)
#define IgmpDebugFree(mem)
#define DebugScanMemoryInterface(IfIndex)
#define DebugScanMemory()
#endif
#define PROCESS_ALLOC_FAILURE2(ptr, TraceMsg, Error,arg2, GotoStmt) \
if (ptr==NULL) {\
Error = ERROR_NOT_ENOUGH_MEMORY;\
Trace2(ERR, TraceMsg, Error, arg2); \
GotoStmt;\
}
#define PROCESS_ALLOC_FAILURE3(ptr, TraceMsg, Error,arg2,arg3, GotoStmt) \
if (ptr==NULL) {\
Error = ERROR_NOT_ENOUGH_MEMORY;\
Trace3(ERR, TraceMsg, Error, arg2, arg3); \
GotoStmt;\
}
//
// assert macros
//
#if DBG
#define IgmpAssert(exp){ \
if(!(exp)) \
{ \
TracePrintf(TRACEID, \
"Assertion failed in %s : %d \n",__FILE__,__LINE__);\
RouterAssert(#exp,__FILE__,__LINE__,NULL); \
} \
}
#if DEBUG_FLAGS_ASSERT_ON_ERRORS
#define IgmpAssertOnError(exp) IgmpAssert(exp)
#else
#define IgmpAssertOnError(exp)
#endif
#else
#define IgmpAssert(exp)
#define IgmpAssertOnError(exp)
#endif
#define INSERT_IN_SORTED_LIST(_pInsertList, _pEntry, _Field, _STRUCT, _Link) {\
\
_STRUCT *pTmp;\
PLIST_ENTRY pHead, ple;\
\
pHead = _pInsertList;\
for (ple=pHead->Flink; ple!=pHead; ple=ple->Flink) {\
\
pTmp = CONTAINING_RECORD(ple, _STRUCT, _Link);\
if (pTmp->_Field > _pEntry->_Field)\
break;\
}\
\
InsertTailList(ple, &_pEntry->_Link);\
}
#define SEARCH_IN_SORTED_LIST(_pList,_Value,_Field,_STRUCT,_Link,_pEntry) {\
PLIST_ENTRY ple;\
_pEntry = NULL;\
\
for (ple=(_pList)->Flink; ple!=_pList; ple=ple->Flink) {\
_pEntry = CONTAINING_RECORD(ple, _STRUCT, _Link);\
if ((_Value >= _pEntry)->_Field) {\
if ((_pEntry)->_Field != _Value) \
_pEntry = NULL;\
break;\
}\
}\
}
//
// NETWORK_TO_LITTLE_ENDIAN macro
//
#define NETWORK_TO_LITTLE_ENDIAN(Group) ( (((Group)&0x000000ff)<<24) \
+(((Group)&0x0000ff00)<<8) \
+(((Group)&0x00ff0000)>>8) \
+(((Group)&0xff000000)>>24) )
#define MIN(a,b) ((a)<(b) ? (a) : (b))
#define MAX(a,b) ((a)>(b) ? (a) : (b))
#define IS_NOT_EQ_ANY2(a, A,B) ((a!=A)&&(a!=B))
#define IS_EQ_ANY(a,A,B) ((a==A)||(a==B))
//
// signature macros for Interface-Group lists enumeration
//
#define GET_NEXT_SIGNATURE() (g_GlobalIfGroupEnumSignature++ | 0x10 )
//#define SET_SIGNATURE(a,b) ((a) = ((b)<<16) | (a&0x00FF))
#define SET_SIGNATURE(a,b) (a = (b))
//
// define enum values
//
#define ADD_FLAG 1
#define DELETE_FLAG 0
#define NON_QUERIER_FLAG 1
#define QUERIER_FLAG 2
#define QUERIER_CHANGE_V1_ONLY 4
#define STATIC_GROUP 1
#define NOT_STATIC_GROUP 0
#define ANY_GROUP_TYPE 2
#define NOT_RAS_CLIENT 0
#define RAS_CLIENT 1
#endif