/*
 * Copyright 2000, International Business Machines Corporation and others.
 * All Rights Reserved.
 * 
 * This software has been released under the terms of the IBM Public
 * License.  For details, see the LICENSE file in the top-level source
 * directory or online at http://www.openafs.org/dl/license10.html
 */

#ifndef _AFS_PROTOTYPES_H_
#define _AFS_PROTOTYPES_H_

/* afs_analyze.c */
extern void init_et_to_sys_error(void);
extern void afs_FinalizeReq(struct vrequest *areq);
extern int afs_Analyze(register struct conn *aconn, afs_int32 acode,
		       struct VenusFid *afid, register struct vrequest *areq,
		       int op, afs_int32 locktype, struct cell *cellp);
extern int afs_CheckCode(afs_int32 acode, struct vrequest *areq, int where);
extern void afs_CopyError(register struct vrequest *afrom,
			  register struct vrequest *ato);
extern void init_sys_error_to_et(void);

/* afs_axscache.c */
extern afs_rwlock_t afs_xaxs;
extern struct axscache *afs_SlowFindAxs(struct axscache **cachep,
					afs_int32 id);
extern struct axscache *axs_Alloc(void);
extern void afs_RemoveAxs(struct axscache **headp, struct axscache *axsp);
extern void afs_FreeAllAxs(struct axscache **headp);

/* afs_buffer.c */
extern void DInit(int abuffers);
extern void *DRead(register afs_inode_t * fid, register int page);
extern void DRelease(register struct buffer *bp, int flag);
extern int DVOffset(register void *ap);
extern void DZap(afs_inode_t * fid);
extern void DFlush(void);
extern void *DNew(register afs_inode_t * fid, register int page);
extern void shutdown_bufferpackage(void);

/* afs_call.c */
extern int afs_cold_shutdown;
extern afs_int32 afs_setTime;
extern char afs_rootVolumeName[64];
extern void afs_shutdown(void);
extern void afs_FlushCBs(void);
extern struct afs_icl_set *afs_icl_allSets;
extern int afs_icl_CreateLog(char *name, afs_int32 logSize,
			     struct afs_icl_log **outLogpp);
extern int afs_icl_CreateLogWithFlags(char *name, afs_int32 logSize,
				      afs_uint32 flags,
				      struct afs_icl_log **outLogpp);
extern int afs_icl_CopyOut(register struct afs_icl_log *logp,
			   afs_int32 * bufferp, afs_int32 * bufSizep,
			   afs_uint32 * cookiep, afs_int32 * flagsp);
extern int afs_icl_GetLogParms(struct afs_icl_log *logp, afs_int32 * maxSizep,
			       afs_int32 * curSizep);
extern int afs_icl_LogHold(register struct afs_icl_log *logp);
extern int afs_icl_LogHoldNL(register struct afs_icl_log *logp);
extern int afs_icl_LogUse(register struct afs_icl_log *logp);
extern int afs_icl_LogFreeUse(register struct afs_icl_log *logp);
extern int afs_icl_LogSetSize(register struct afs_icl_log *logp,
			      afs_int32 logSize);
extern int afs_icl_ZapLog(register struct afs_icl_log *logp);
extern int afs_icl_LogRele(register struct afs_icl_log *logp);
extern int afs_icl_LogReleNL(register struct afs_icl_log *logp);
extern int afs_icl_ZeroLog(register struct afs_icl_log *logp);
extern int afs_icl_LogFree(register struct afs_icl_log *logp);
extern struct afs_icl_log *afs_icl_FindLog(char *name);
extern int
  afs_icl_EnumerateLogs(int (*aproc)

			  (char *name, char *arock, struct afs_icl_log * tp),
			char *arock);
extern int afs_icl_CreateSet(char *name, struct afs_icl_log *baseLogp,
			     struct afs_icl_log *fatalLogp,
			     struct afs_icl_set **outSetpp);
extern int afs_icl_CreateSetWithFlags(char *name,
				      struct afs_icl_log *baseLogp,
				      struct afs_icl_log *fatalLogp,
				      afs_uint32 flags,
				      struct afs_icl_set **outSetpp);
extern int afs_icl_SetEnable(struct afs_icl_set *setp, afs_int32 eventID,
			     int setValue);
extern int afs_icl_GetEnable(struct afs_icl_set *setp, afs_int32 eventID,
			     int *getValuep);
extern int afs_icl_ZeroSet(struct afs_icl_set *setp);
extern int
  afs_icl_EnumerateSets(int (*aproc)

			  (char *name, char *arock, struct afs_icl_log * tp),
			char *arock);
extern int afs_icl_AddLogToSet(struct afs_icl_set *setp,
			       struct afs_icl_log *newlogp);
extern int afs_icl_SetSetStat(struct afs_icl_set *setp, int op);
extern int afs_icl_SetHold(register struct afs_icl_set *setp);
extern int afs_icl_ZapSet(register struct afs_icl_set *setp);
extern int afs_icl_SetRele(register struct afs_icl_set *setp);
extern int afs_icl_SetFree(register struct afs_icl_set *setp);
extern struct afs_icl_set *afs_icl_FindSet(char *name);

extern int afs_icl_Event4(register struct afs_icl_set *setp,
			  afs_int32 eventID, afs_int32 lAndT, long p1,
			  long p2, long p3, long p4);
extern int afs_icl_Event3(register struct afs_icl_set *setp,
			  afs_int32 eventID, afs_int32 lAndT, long p1,
			  long p2, long p3);
extern int afs_icl_Event2(register struct afs_icl_set *setp,
			  afs_int32 eventID, afs_int32 lAndT, long p1,
			  long p2);
extern int afs_icl_Event1(register struct afs_icl_set *setp,
			  afs_int32 eventID, afs_int32 lAndT, long p1);
extern int afs_icl_Event0(register struct afs_icl_set *setp,
			  afs_int32 eventID, afs_int32 lAndT);
extern void afs_icl_AppendRecord(register struct afs_icl_log *logp,
				 afs_int32 op, afs_int32 types, long p1,
				 long p2, long p3, long p4);

extern int afs_CheckInit(void);
extern void afs_shutdown(void);
extern void shutdown_afstest(void);
extern void afs_shutdown_BKG(void);


/* afs_callback.c */
extern afs_int32 afs_allCBs;
extern afs_int32 afs_oddCBs;
extern afs_int32 afs_evenCBs;
extern afs_int32 afs_allZaps;
extern afs_int32 afs_oddZaps;
extern afs_int32 afs_evenZaps;
extern afs_int32 afs_connectBacks;
extern unsigned long lastCallBack_vnode;
extern unsigned int lastCallBack_dv;
extern osi_timeval_t lastCallBack_time;
extern struct interfaceAddr afs_cb_interface;

extern int afs_RXCallBackServer(void);
extern int SRXAFSCB_GetCE(struct rx_call *a_call, afs_int32 a_index,
			  struct AFSDBCacheEntry *a_result);
extern int SRXAFSCB_GetCE64(struct rx_call *a_call, afs_int32 a_index,
			    struct AFSDBCacheEntry64 *a_result);
extern int SRXAFSCB_GetLock(struct rx_call *a_call, afs_int32 a_index,
			    struct AFSDBLock *a_result);
extern int SRXAFSCB_CallBack(struct rx_call *a_call,
			     register struct AFSCBFids *a_fids,
			     struct AFSCBs *a_callbacks);
extern int SRXAFSCB_Probe(struct rx_call *a_call);
extern int SRXAFSCB_InitCallBackState(struct rx_call *a_call);
extern int SRXAFSCB_XStatsVersion(struct rx_call *a_call,
				  afs_int32 * a_versionP);
extern int SRXAFSCB_GetXStats(struct rx_call *a_call,
			      afs_int32 a_clientVersionNum,
			      afs_int32 a_collectionNumber,
			      afs_int32 * a_srvVersionNumP,
			      afs_int32 * a_timeP, AFSCB_CollData * a_dataP);
extern int afs_RXCallBackServer(void);
extern int shutdown_CB(void);
extern int SRXAFSCB_InitCallBackState2(struct rx_call *a_call,
				       struct interfaceAddr *addr);
extern int SRXAFSCB_WhoAreYou(struct rx_call *a_call,
			      struct interfaceAddr *addr);
extern int SRXAFSCB_InitCallBackState3(struct rx_call *a_call,
				       afsUUID * a_uuid);
extern int SRXAFSCB_ProbeUuid(struct rx_call *a_call, afsUUID * a_uuid);
extern int SRXAFSCB_GetServerPrefs(struct rx_call *a_call, afs_int32 a_index,
				   afs_int32 * a_srvr_addr,
				   afs_int32 * a_srvr_rank);
extern int SRXAFSCB_GetCellServDB(struct rx_call *a_call, afs_int32 a_index,
				  char **a_name, serverList * a_hosts);
extern int SRXAFSCB_GetLocalCell(struct rx_call *a_call, char **a_name);
extern int SRXAFSCB_GetCacheConfig(struct rx_call *a_call,
				   afs_uint32 callerVersion,
				   afs_uint32 * serverVersion,
				   afs_uint32 * configCount,
				   cacheConfig * config);
extern int SRXAFSCB_FetchData(struct rx_call *rxcall, struct AFSFid *Fid,
			      afs_int32 Fd, afs_int64 Position,
			      afs_int64 Length, afs_int64 * TotalLength);
extern int SRXAFSCB_StoreData(struct rx_call *rxcall, struct AFSFid *Fid,
			      afs_int32 Fd, afs_int64 Position,
			      afs_int64 Length, afs_int64 * TotalLength);


/* afs_cbqueue.c */
extern afs_rwlock_t afs_xcbhash;
extern void afs_QueueCallback(struct vcache *avc, unsigned int atime,
			      struct volume *avp);
extern void afs_CheckCallbacks(unsigned int secs);
extern void afs_FlushCBs(void);
extern void afs_FlushServerCBs(struct server *srvp);
extern int afs_BumpBase(void);
extern void afs_InitCBQueue(int doLockInit);
extern void afs_DequeueCallback(struct vcache *avc);

/* afs_cell.c */
extern afs_rwlock_t afs_xcell;
extern void afs_CellInit(void);
extern void shutdown_cell(void);
extern int afs_cellname_init(ino_t inode, int lookupcode);
extern int afs_cellname_write(void);
extern afs_int32 afs_NewCell(char *acellName, afs_int32 * acellHosts,
			     int aflags, char *linkedcname, u_short fsport,
			     u_short vlport, int timeout);
extern afs_int32 afs_SetPrimaryCell(char *acellName);
extern struct cell *afs_GetCell(afs_int32 acell, afs_int32 locktype);
extern struct cell *afs_GetCellStale(afs_int32 acell, afs_int32 locktype);
extern struct cell *afs_GetCellByIndex(afs_int32 cellidx, afs_int32 locktype);
extern struct cell *afs_GetCellByName(char *acellName, afs_int32 locktype);
extern struct cell *afs_GetPrimaryCell(afs_int32 locktype);
extern int afs_IsPrimaryCellNum(afs_int32 cellnum);
extern int afs_IsPrimaryCell(struct cell *cell);
extern void *afs_TraverseCells(void *(*cb) (struct cell *, void *),
			       void *arg);
extern int afs_CellOrAliasExists(char *aname);
extern int afs_CellNumValid(afs_int32 cellnum);
extern afs_int32 afs_NewCellAlias(char *alias, char *cell);
extern struct cell_alias *afs_GetCellAlias(int index);
extern void afs_PutCellAlias(struct cell_alias *a);
extern int afs_AFSDBHandler(char *acellName, int acellNameLen,
			    afs_int32 * kernelMsg);
extern void afs_LookupAFSDB(char *acellName);
extern void afs_StopAFSDB(void);
extern void afs_RemoveCellEntry(struct server *srvp);

/* afs_chunk.c */
extern afs_int32 afs_FirstCSize;
extern afs_int32 afs_OtherCSize;
extern afs_int32 afs_LogChunk;

/* afs_cell.c */
extern struct cell *afs_GetRealCellByIndex(register afs_int32 cellindex,
					   afs_int32 locktype,
					   afs_int32 refresh);

/* afs_conn.c */
extern afs_int32 cryptall;
extern afs_rwlock_t afs_xinterface;
extern afs_rwlock_t afs_xconn;
extern struct conn *afs_Conn(register struct VenusFid *afid,
			     register struct vrequest *areq,
			     afs_int32 locktype);
extern struct conn *afs_ConnBySA(struct srvAddr *sap, unsigned short aport,
				 afs_int32 acell, struct unixuser *tu,
				 int force_if_down, afs_int32 create,
				 afs_int32 locktype);
extern struct conn *afs_ConnByMHosts(struct server *ahosts[],
				     unsigned short aport, afs_int32 acell,
				     register struct vrequest *areq,
				     afs_int32 locktype);
extern struct conn *afs_ConnByHost(struct server *aserver,
				   unsigned short aport, afs_int32 acell,
				   struct vrequest *areq, int aforce,
				   afs_int32 locktype);
extern void afs_PutConn(register struct conn *ac, afs_int32 locktype);
extern void ForceNewConnections(struct srvAddr *sap);


/* afs_daemons.c */
extern afs_lock_t afs_xbrs;
extern short afs_brsWaiters;
extern short afs_brsDaemons;
extern struct brequest afs_brs[NBRS];
extern struct afs_osi_WaitHandle AFS_WaitHandler, AFS_CSWaitHandler;
extern afs_int32 afs_gcpags;
extern afs_int32 afs_gcpags_procsize;
extern afs_int32 afs_CheckServerDaemonStarted;
extern afs_int32 PROBE_INTERVAL;

extern void afs_Daemon(void);
extern struct brequest *afs_BQueue(register short aopcode,
				   register struct vcache *avc,
				   afs_int32 dontwait, afs_int32 ause,
				   struct AFS_UCRED *acred,
				   afs_size_t asparm0, afs_size_t asparm1,
				   void *apparm0);
extern void afs_CheckServerDaemon(void);
extern int afs_CheckRootVolume(void);
extern void afs_BRelease(register struct brequest *ab);
extern int afs_BBusy(void);
extern int afs_BioDaemon(afs_int32 nbiods);
extern void afs_BackgroundDaemon(void);
extern void shutdown_daemons(void);
extern int afs_sgidaemon(void);


/* afs_dcache.c */
extern u_int afs_min_cache;
extern afs_int32 *afs_dvhashTbl;
extern afs_int32 afs_dhashsize;
extern afs_rwlock_t afs_xdcache;
extern afs_size_t afs_vmMappingEnd;
extern afs_int32 afs_blocksUsed;
extern afs_int32 afs_blocksDiscarded;
extern int afs_WaitForCacheDrain;
extern int cacheDiskType;
extern unsigned char *afs_indexFlags;
extern struct afs_cacheOps *afs_cacheType;
extern ino_t cacheInode;
extern struct osi_file *afs_cacheInodep;
extern void afs_dcacheInit(int afiles, int ablocks, int aDentries, int achunk,
			   int aflags);
extern int afs_PutDCache(register struct dcache *adc);
extern void afs_FlushDCache(register struct dcache *adc);
extern void shutdown_dcache(void);
extern void afs_CacheTruncateDaemon(void);
extern afs_int32 afs_fsfragsize;
extern struct dcache *afs_MemGetDSlot(register afs_int32 aslot,
				      register struct dcache *tmpdc);
extern struct dcache *afs_GetDCache(register struct vcache *avc,
				    afs_size_t abyte,
				    register struct vrequest *areq,
				    afs_size_t * aoffset, afs_size_t * alen,
				    int aflags);
extern struct dcache *afs_FindDCache(register struct vcache *avc,
				     afs_size_t abyte);
extern void afs_StoreWarn(register afs_int32 acode, afs_int32 avolume,
			  register afs_int32 aflags);
extern void afs_MaybeWakeupTruncateDaemon(void);
extern void afs_CacheTruncateDaemon(void);
extern void afs_AdjustSize(register struct dcache *adc,
			   register afs_int32 newSize);
extern int afs_HashOutDCache(struct dcache *adc);
extern int afs_MaybeFreeDiscardedDCache(void);
extern int afs_RefDCache(struct dcache *adc);
extern void afs_TryToSmush(register struct vcache *avc,
			   struct AFS_UCRED *acred, int sync);
extern void updateV2DC(int lockVc, struct vcache *v, struct dcache *d,
		       int src);
extern void afs_WriteThroughDSlots(void);
extern struct dcache *afs_UFSGetDSlot(register afs_int32 aslot,
				      register struct dcache *tmpdc);
extern int afs_WriteDCache(register struct dcache *adc, int atime);
extern int afs_wakeup(register struct vcache *avc);
extern int afs_InitCacheFile(char *afile, ino_t ainode);


/* afs_dynroot.c */
extern int afs_IsDynrootFid(struct VenusFid *fid);
extern void afs_GetDynrootFid(struct VenusFid *fid);
extern int afs_IsDynroot(struct vcache *avc);
extern void afs_DynrootInvalidate(void);
extern void afs_GetDynroot(char **dynrootDir, int *dynrootLen,
			   struct AFSFetchStatus *status);
extern void afs_PutDynroot(void);
extern int afs_DynrootNewVnode(struct vcache *avc,
			       struct AFSFetchStatus *status);
extern int afs_SetDynrootEnable(int enable);
extern int afs_GetDynrootEnable(void);
extern int afs_DynrootVOPRemove(struct vcache *avc, struct AFS_UCRED *acred,
				char *aname);
extern int afs_DynrootVOPSymlink(struct vcache *avc, struct AFS_UCRED *acred,
				 char *aname, char *atargetName);

/* afs_exporter.c */
extern struct afs_exporter *root_exported;
extern struct afs_exporter *exporter_find(int type);

/* afs_init.c */
extern struct cm_initparams cm_initParams;
extern int afs_resourceinit_flag;
extern afs_rwlock_t afs_puttofileLock;
extern char *afs_sysname;
extern char *afs_sysnamelist[MAXNUMSYSNAMES];
extern int afs_sysnamecount;
extern afs_int32 cacheInfoModTime;
extern int afs_CacheInit(afs_int32 astatSize, afs_int32 afiles,
			 afs_int32 ablocks, afs_int32 aDentries,
			 afs_int32 aVolumes, afs_int32 achunk,
			 afs_int32 aflags, afs_int32 ninodes,
			 afs_int32 nusers);
extern void afs_ComputeCacheParms(void);
extern int afs_InitCacheInfo(register char *afile);
extern int afs_InitVolumeInfo(char *afile);
extern int afs_InitCellInfo(char *afile);
extern int afs_ResourceInit(int preallocs);
extern void shutdown_cache(void);
extern void shutdown_vnodeops(void);
extern void shutdown_AFS(void);

/* afs_lock.c */
extern void Lock_Init(register struct afs_lock *lock);
extern void ObtainLock(register struct afs_lock *lock, int how,
		       unsigned int src_indicator);
extern void ReleaseLock(register struct afs_lock *lock, int how);
extern int Afs_Lock_Trace(int op, struct afs_lock *alock, int type,
			  char *file, int line);
extern void Afs_Lock_Obtain(register struct afs_lock *lock, int how);
extern void Afs_Lock_ReleaseR(register struct afs_lock *lock);
extern void Afs_Lock_ReleaseW(register struct afs_lock *lock);
extern void afs_osi_SleepR(register char *addr,
			   register struct afs_lock *alock);
extern void afs_osi_SleepW(register char *addr,
			   register struct afs_lock *alock);
extern void afs_osi_SleepS(register char *addr,
			   register struct afs_lock *alock);
#ifndef AFS_NOBOZO_LOCK
extern void afs_BozonLock(struct afs_bozoLock *alock, struct vcache *avc);
extern void afs_BozonUnlock(struct afs_bozoLock *alock, struct vcache *avc);
extern void afs_BozonInit(struct afs_bozoLock *alock, struct vcache *avc);
extern int afs_CheckBozonLock(struct afs_bozoLock *alock);
extern int afs_CheckBozonLockBlocking(struct afs_bozoLock *alock);
#endif




/* afs_mariner.c */
extern afs_int32 afs_mariner;
extern afs_int32 afs_marinerHost;
extern struct rx_service *afs_server;
extern int afs_AddMarinerName(register char *aname,
			      register struct vcache *avc);
extern char *afs_GetMariner(register struct vcache *avc);
extern void afs_MarinerLogFetch(register struct vcache *avc,
				register afs_int32 off,
				register afs_int32 bytes,
				register afs_int32 idx);
extern void afs_MarinerLog(register char *astring,
			   register struct vcache *avc);
extern void shutdown_mariner(void);


/* afs_memcache.c */
extern int afs_InitMemCache(int blkCount, int blkSize, int flags);
extern int afs_MemCacheClose(char *file);
extern void *afs_MemCacheOpen(ino_t blkno);
extern int afs_MemReadBlk(register struct memCacheEntry *mceP, int offset,
			  char *dest, int size);
extern int afs_MemReadvBlk(register struct memCacheEntry *mceP, int offset,
			   struct iovec *iov, int nio, int size);
extern int afs_MemReadUIO(ino_t blkno, struct uio *uioP);
extern int afs_MemWriteBlk(register struct memCacheEntry *mceP, int offset,
			   char *src, int size);
extern int afs_MemWritevBlk(register struct memCacheEntry *mceP, int offset,
			    struct iovec *iov, int nio, int size);
extern int afs_MemWriteUIO(ino_t blkno, struct uio *uioP);
extern int afs_MemCacheTruncate(register struct memCacheEntry *mceP,
				int size);
extern int afs_MemCacheStoreProc(register struct rx_call *acall,
				 register struct memCacheEntry *mceP,
				 register afs_int32 alen, struct vcache *avc,
				 int *shouldWake, afs_size_t * abytesToXferP,
				 afs_size_t * abytesXferredP,
				 afs_int32 length);
extern int afs_MemCacheFetchProc(register struct rx_call *acall,
				 register struct memCacheEntry *mceP,
				 afs_size_t abase, struct dcache *adc,
				 struct vcache *avc,
				 afs_size_t * abytesToXferP,
				 afs_size_t * abytesXferredP,
				 afs_int32 lengthFound);
extern void shutdown_memcache(void);


/* afs_nfsclnt.c */
extern struct afs_exporter *afs_nfsexported;
extern struct afs_exporter *afs_nfsexporter;

/* afs_osi.c */
extern afs_lock_t afs_ftf;
extern void afs_osi_Invisible(void);
extern void afs_osi_RxkRegister(void);
extern void afs_osi_MaskSignals(void);
extern void afs_osi_UnmaskRxkSignals(void);
extern void afs_osi_MaskUserLoop(void);
extern void *afs_osi_Alloc_debug(size_t x, char *func, int line);
#ifndef afs_osi_Alloc_NoSleep
extern void *afs_osi_Alloc_NoSleep(size_t x);
#endif
#ifndef afs_osi_Free
extern void afs_osi_Free(void *x, size_t asize);
#endif
extern void afs_osi_FreeStr(char *x);
extern void osi_Init(void);
extern int osi_Active(register struct vcache *avc);
extern void osi_FlushPages(register struct vcache *avc,
			   struct AFS_UCRED *credp);
extern void osi_FlushText_really(register struct vcache *vp);
extern void afs_osi_MaskSignals(void);
extern void afs_osi_UnmaskRxkSignals(void);
extern void afs_osi_RxkRegister(void);
extern void afs_osi_Invisible(void);
extern int osi_VMDirty_p(struct vcache *avc);
#ifndef UKERNEL
extern void osi_ReleaseVM(struct vcache *avc, struct AFS_UCRED *acred);
#endif
extern void shutdown_osi(void);
extern int afs_osi_suser(void *credp);
extern void afs_osi_TraverseProcTable(void);
#if defined(KERNEL) && !defined(UKERNEL) && defined(AFS_PROC)
extern const struct AFS_UCRED *afs_osi_proc2cred(AFS_PROC * pr);
#endif

/* afs_osi_pag.c */
extern int afs_setpag();
extern afs_uint32 genpag(void);
extern afs_uint32 getpag(void);
#if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
extern int AddPag(struct proc *p, afs_int32 aval, struct AFS_UCRED **credpp);
#else
extern int AddPag(afs_int32 aval, struct AFS_UCRED **credpp);
#endif
extern int afs_InitReq(register struct vrequest *av, struct AFS_UCRED *acred);
extern afs_uint32 afs_get_pag_from_groups(gid_t g0a, gid_t g1a);
extern void afs_get_groups_from_pag(afs_uint32 pag, gid_t * g0p, gid_t * g1p);
extern afs_int32 PagInCred(const struct AFS_UCRED *cred);

/* afs_osi_alloc.c */
#ifndef AFS_FBSD_ENV
extern afs_int32 afs_preallocs;
extern afs_lock_t osi_fsplock;
extern afs_lock_t osi_flplock;
#endif
extern void osi_FreeLargeSpace(void *adata);
extern void osi_FreeMediumSpace(void *adata);
extern void osi_FreeSmallSpace(void *adata);
extern void *osi_AllocLargeSpace(size_t size);
extern void *osi_AllocMediumSpace(size_t size);
extern void *osi_AllocSmallSpace(size_t size);
#ifndef osi_AllocSmall
extern char *osi_AllocSmall(register afs_int32 size,
			    register afs_int32 morespace);
#endif

/* afs_osi_uio.c */
extern int afsio_copy(struct uio *ainuio, struct uio *aoutuio,
		      struct iovec *aoutvec);
extern int afsio_trim(struct uio *auio, afs_int32 asize);
extern int afsio_skip(struct uio *auio, afs_int32 asize);



/* ARCH/osi_misc.c */
extern void osi_iput(struct inode *ip);
extern void afs_osi_SetTime(osi_timeval_t * atv);

/* LINUX/osi_misc.c */
#ifdef AFS_LINUX20_ENV
#ifdef AFS_LINUX24_ENV
extern int osi_lookupname(char *aname, uio_seg_t seg, int followlink,
			  vnode_t ** dirvpp, struct dentry **dpp);
extern int osi_InitCacheInfo(char *aname);
extern int osi_rdwr(int rw, struct osi_file *file, caddr_t addrp,
		    size_t asize, size_t * resid);
extern int osi_file_uio_rdwr(struct osi_file *osifile, uio_t * uiop, int rw);
extern void setup_uio(uio_t * uiop, struct iovec *iovecp, char *buf,
		      afs_offs_t pos, int count, uio_flag_t flag,
		      uio_seg_t seg);
extern int uiomove(char *dp, int length, uio_flag_t rw, uio_t * uiop);
extern void osi_linux_free_inode_pages(void);
extern void osi_clear_inode(struct inode *ip);
extern void check_bad_parent(struct dentry *dp);
#endif
extern void osi_linux_mask(void);
extern void osi_linux_unmask(void);
extern void osi_linux_rxkreg(void);
extern int setpag(cred_t ** cr, afs_uint32 pagvalue, afs_uint32 * newpag,
		  int change_parent);
#endif


/* ARCH/osi_sleep.c */
extern void afs_osi_InitWaitHandle(struct afs_osi_WaitHandle *achandle);
extern void afs_osi_CancelWait(struct afs_osi_WaitHandle *achandle);
extern int afs_osi_Wait(afs_int32 ams, struct afs_osi_WaitHandle *ahandle,
			int aintok);
#ifndef afs_osi_Wakeup
extern int afs_osi_Wakeup(void *event);
#endif
#ifndef afs_osi_Sleep
extern void afs_osi_Sleep(void *event);
#endif
#ifndef afs_osi_SleepSig
extern int afs_osi_SleepSig(void *event);
#endif


/* ARCH/osi_inode.c */
extern int afs_syscall_icreate();
extern int afs_syscall_iopen();
extern int afs_syscall_iincdec();


/* ARCH/osi_file.c */
extern int afs_osicred_initialized;
#if defined(AFS_SUN57_64BIT_ENV) || defined(AFS_SGI62_ENV)
extern void *osi_UFSOpen(ino_t ainode);
#else
extern void *osi_UFSOpen(afs_int32 ainode);
#endif
extern int afs_osi_Stat(register struct osi_file *afile,
			register struct osi_stat *astat);
extern int osi_UFSClose(register struct osi_file *afile);
extern int osi_UFSTruncate(register struct osi_file *afile, afs_int32 asize);
extern void osi_DisableAtimes(struct vnode *avp);
extern int afs_osi_Read(register struct osi_file *afile, int offset,
			void *aptr, afs_int32 asize);
extern int afs_osi_Write(register struct osi_file *afile, afs_int32 offset,
			 void *aptr, afs_int32 asize);
extern int afs_osi_MapStrategy(int (*aproc) (struct buf * bp),
			       register struct buf *bp);
extern void shutdown_osifile(void);


/* ARCH/osi_groups.c */
#ifdef AFS_XBSD_ENV
extern int setpag(struct proc *proc, struct ucred **cred, afs_uint32 pagvalue,
		  afs_uint32 * newpag, int change_parent);
#endif


/* ARCH/osi_vm.c */
extern int osi_VM_FlushVCache(struct vcache *avc, int *slept);
extern void osi_VM_StoreAllSegments(struct vcache *avc);
extern void osi_VM_TryToSmush(struct vcache *avc, struct AFS_UCRED *acred,
			      int sync);
extern void osi_VM_FlushPages(struct vcache *avc, struct AFS_UCRED *credp);
extern void osi_VM_Truncate(struct vcache *avc, int alen,
			    struct AFS_UCRED *acred);
extern void osi_VM_TryReclaim(struct vcache *avc, int *slept);
extern void osi_VM_NukePages(struct vnode *vp, off_t offset, off_t size);
extern int osi_VM_Setup(struct vcache *avc, int force);

#ifdef AFS_SUN5_ENV
extern int osi_VM_GetDownD(struct vcache *avc, struct dcache *adc);
extern void osi_VM_PreTruncate(struct vcache *avc, int alen,
			       struct AFS_UCRED *acred);
#endif


/* ARCH/osi_vnodeops.c */
extern struct vnodeops Afs_vnodeops;
#if defined(AFS_OSF_ENV)
#if defined(AFS_OSF30_ENV)
extern int max_vnodes;		/* number of total system vnodes */
#else
extern int nvnode;		/* number of total system vnodes */
extern int numvnodes;		/* number vnodes in use now */
#endif
#ifdef AFS_DUX40_ENV
extern struct vfs_ubcops afs_ubcops;
#endif
#endif

/* afs_osifile.c */

/* afs_osi_pag.c */
extern afs_uint32 pag_epoch;
extern afs_uint32 pagCounter;

/* OS/osi_vfsops.c */
#if defined(AFS_OSF_ENV) || defined(AFS_XBSD_ENV) || defined(AFS_DARWIN_ENV)
extern struct mount *afs_globalVFS;
#else
extern struct vfs *afs_globalVFS;
#endif
extern struct vcache *afs_globalVp;
#ifdef AFS_LINUX20_ENV
extern void vcache2inode(struct vcache *avc);
#endif

/* afs_pioctl.c */
extern struct VenusFid afs_rootFid;
extern afs_int32 afs_waitForever;
extern short afs_waitForeverCount;
extern afs_int32 afs_showflags;
extern int afs_defaultAsynchrony;
extern int afs_syscall_pioctl();

/* afs_segments.c */
extern int afs_StoreMini(register struct vcache *avc, struct vrequest *areq);
extern int afs_StoreAllSegments(register struct vcache *avc,
				struct vrequest *areq, int sync);
extern int afs_InvalidateAllSegments(struct vcache *avc);
extern int afs_TruncateAllSegments(register struct vcache *avc,
				   afs_size_t alen, struct vrequest *areq,
				   struct AFS_UCRED *acred);

/* afs_server.c */
extern afs_rwlock_t afs_xsrvAddr;
extern afs_rwlock_t afs_xserver;
extern afs_rwlock_t afs_icl_lock;
extern struct srvAddr *afs_srvAddrs[NSERVERS];
extern struct server *afs_servers[NSERVERS];
extern int afs_totalServers;
extern struct server *afs_setTimeHost;
extern struct server *afs_FindServer(afs_int32 aserver, afs_uint16 aport,
				     afsUUID * uuidp, afs_int32 locktype);
extern struct server *afs_GetServer(afs_uint32 * aserver, afs_int32 nservers,
				    afs_int32 acell, u_short aport,
				    afs_int32 locktype, afsUUID * uuidp,
				    afs_int32 addr_uniquifier);
extern void afs_MarkServerUpOrDown(struct srvAddr *sa, int a_isDown);
extern void afs_ServerDown(struct srvAddr *sa);
extern void afs_CountServers(void);
extern void afs_CheckServers(int adown, struct cell *acellp);
extern unsigned int afs_random(void);
extern int afs_randomMod15(void);
extern int afs_randomMod127(void);
extern void afs_SortOneServer(struct server *asp);
extern void afs_SortServers(struct server *aservers[], int count);
extern void afs_FlushServer(struct server *srvp);
extern void afs_RemoveSrvAddr(struct srvAddr *sap);
extern void afs_ActivateServer(struct srvAddr *sap);
#ifdef AFS_USERSPACE_IP_ADDR
extern int afsi_SetServerIPRank(struct srvAddr *sa, afs_int32 addr,
				afs_uint32 subnetmask);
#else
#if (!defined(AFS_SUN5_ENV)) && defined(USEIFADDR)
void afsi_SetServerIPRank(struct srvAddr *sa, struct in_ifaddr *ifa);
#endif
#endif
extern int afs_HaveCallBacksFrom(struct server *aserver);



/* afs_osidnlc.c */
extern int osi_dnlc_enter(struct vcache *adp, char *aname, struct vcache *avc,
			  afs_hyper_t * avno);
extern struct vcache *osi_dnlc_lookup(struct vcache *adp, char *aname,
				      int locktype);
extern int osi_dnlc_remove(struct vcache *adp, char *aname,
			   struct vcache *avc);
extern int osi_dnlc_purgedp(struct vcache *adp);
extern int osi_dnlc_purgevp(struct vcache *avc);
extern int osi_dnlc_purge(void);
extern int osi_dnlc_purgevol(struct VenusFid *fidp);
extern int osi_dnlc_init(void);
extern int osi_dnlc_shutdown(void);


/* afs_stat.c */
extern struct afs_CMStats afs_cmstats;
extern struct afs_stats_CMPerf afs_stats_cmperf;
extern struct afs_stats_CMFullPerf afs_stats_cmfullperf;
extern afs_int32 afs_stats_XferSumBytes[AFS_STATS_NUM_FS_XFER_OPS];
extern void afs_InitStats(void);
extern void afs_GetCMStat(char **ptr, unsigned *size);
#ifndef AFS_NOSTATS
extern void afs_AddToMean(struct afs_MeanStats *oldMean, afs_int32 newValue);
#endif


/* UKERNEL/afs_usrops.c */
#ifdef UKERNEL
extern void uafs_Shutdown(void);
extern void osi_ReleaseVM(struct vcache *avc, int len,
			  struct usr_ucred *credp);
extern int osi_GetTime(struct timeval *tv);
#endif




/* afs_user.c */
extern afs_rwlock_t afs_xuser;
extern struct unixuser *afs_users[NUSERS];
extern struct unixuser *afs_FindUser(afs_int32 auid, afs_int32 acell,
				     afs_int32 locktype);
extern struct unixuser *afs_GetUser(register afs_int32 auid, afs_int32 acell,
				    afs_int32 locktype);
#if AFS_GCPAGS
extern afs_int32 afs_GCPAGs(afs_int32 * ReleasedCount);
extern void afs_GCPAGs_perproc_func(AFS_PROC * pproc);
#endif /* AFS_GCPAGS */
extern void afs_ComputePAGStats(void);
extern void afs_PutUser(register struct unixuser *au, afs_int32 locktype);
extern void afs_GCUserData(int aforce);
extern void afs_CheckTokenCache(void);
extern void afs_ResetAccessCache(afs_int32 uid, int alock);
extern void afs_ResetUserConns(register struct unixuser *auser);
extern void afs_SetPrimary(register struct unixuser *au, register int aflag);


/* afs_util.c */
#ifndef afs_cv2string
extern char *afs_cv2string(char *ttp, afs_uint32 aval);
#endif
#ifndef afs_strcasecmp
extern int afs_strcasecmp(char *s1, char *s2);
#endif
#ifndef afs_strcat
extern char *afs_strcat(char *s1, char *s2);
#endif
#ifdef AFS_OBSD34_ENV
extern char *afs_strcpy(char *s1, char *s2);
#endif
#ifndef afs_strchr
extern char *afs_strchr(char *s, int c);
#endif
extern char *afs_strdup(char *s);
extern void print_internet_address(char *preamble, struct srvAddr *sa,
				   char *postamble, int flag);
extern afs_int32 afs_data_pointer_to_int32(const void *p);

#if 0				/* problems - need to change to varargs, right now is incorrect usage
				 * throughout code */
extern void afs_warn(char *a, long b, long c, long d, long e, long f, long g,
		     long h, long i, long j);
extern void afs_warnuser(char *a, long b, long c, long d, long e, long f,
			 long g, long h, long i, long j);
#else
extern void afs_warn();
extern void afs_warnuser();
#endif
extern void afs_CheckLocks(void);
extern int afs_badop(void);
extern int afs_noop(void);
extern afs_int32 afs_data_pointer_to_int32(const void *p);



/* afs_vcache.c */
extern afs_int32 afs_maxvcount;
extern afs_int32 afs_vcount;
extern int afsvnumbers;
extern afs_rwlock_t afs_xvcache;
extern afs_lock_t afs_xvcb;
extern struct vcache *freeVCList;
extern struct vcache *Initial_freeVCList;
extern struct afs_q VLRU;
extern afs_int32 vcachegen;
extern unsigned int afs_paniconwarn;
extern struct vcache *afs_vhashT[VCSIZE];
extern afs_int32 afs_bulkStatsLost;
extern int afs_norefpanic;

void afs_vcacheInit(int astatSize);
extern struct vcache *afs_FindVCache(struct VenusFid *afid, afs_int32 * retry,
				     afs_int32 flag);
extern afs_int32 afs_FetchStatus(struct vcache *avc, struct VenusFid *afid,
				 struct vrequest *areq,
				 struct AFSFetchStatus *Outsp);

extern afs_int32 afs_FlushVCBs(afs_int32 lockit);
extern void afs_InactiveVCache(struct vcache *avc, struct AFS_UCRED *acred);
extern struct vcache *afs_LookupVCache(struct VenusFid *afid,
				       struct vrequest *areq,
				       afs_int32 * cached, struct vcache *adp,
				       char *aname);
extern int afs_FlushVCache(struct vcache *avc, int *slept);
extern struct vcache *afs_GetRootVCache(struct VenusFid *afid,
					struct vrequest *areq,
					afs_int32 * cached,
					struct volume *tvolp);
extern struct vcache *afs_NewVCache(struct VenusFid *afid,
				    struct server *serverp);
extern int afs_VerifyVCache2(struct vcache *avc, struct vrequest *areq);
extern struct vcache *afs_GetVCache(register struct VenusFid *afid,
				    struct vrequest *areq, afs_int32 * cached,
				    struct vcache *avc);
extern void afs_PutVCache(register struct vcache *avc);
extern void afs_ProcessFS(register struct vcache *avc,
			  register struct AFSFetchStatus *astat,
			  struct vrequest *areq);
extern struct afs_cbr *afs_AllocCBR(void);
extern int afs_FreeCBR(register struct afs_cbr *asp);
extern void afs_RemoveVCB(register struct VenusFid *afid);
extern void afs_FlushActiveVcaches(register afs_int32 doflocks);
extern int afs_WriteVCache(register struct vcache *avc,
			   register struct AFSStoreStatus *astatus,
			   struct vrequest *areq);
extern int afs_RemoteLookup(register struct VenusFid *afid,
			    struct vrequest *areq, char *name,
			    struct VenusFid *nfid,
			    struct AFSFetchStatus *OutStatusp,
			    struct AFSCallBack *CallBackp,
			    struct server **serverp,
			    struct AFSVolSync *tsyncp);
extern afs_int32 afs_NFSFindVCache(struct vcache **avcp,
				   struct VenusFid *afid);
extern void afs_vcacheInit(int astatSize);
extern void shutdown_vcache(void);


/* VNOPS/afs_vnop_access.c */
extern afs_int32 afs_GetAccessBits(register struct vcache *avc,
				   register afs_int32 arights,
				   register struct vrequest *areq);
extern int afs_AccessOK(struct vcache *avc, afs_int32 arights,
			struct vrequest *areq, afs_int32 check_mode_bits);
#if defined(AFS_SUN5_ENV) || (defined(AFS_SGI_ENV) && !defined(AFS_SGI65_ENV))
extern int afs_access(OSI_VC_DECL(avc), register afs_int32 amode, int flags,
		      struct AFS_UCRED *acred);
#else
extern int afs_access(OSI_VC_DECL(avc), register afs_int32 amode,
		      struct AFS_UCRED *acred);
#endif
extern int afs_getRights(OSI_VC_DECL(avc), register afs_int32 arights,
			 struct AFS_UCRED *acred);

/* VNOPS/afs_vnop_attrs.c */
extern int afs_CopyOutAttrs(register struct vcache *avc,
			    register struct vattr *attrs);
#if     defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
extern int afs_getattr(OSI_VC_DECL(avc), struct vattr *attrs, int flags,
		       struct AFS_UCRED *acred);
#else
extern int afs_getattr(OSI_VC_DECL(avc), struct vattr *attrs,
		       struct AFS_UCRED *acred);
#endif
extern int afs_VAttrToAS(register struct vcache *avc,
			 register struct vattr *av,
			 register struct AFSStoreStatus *as);
#if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
extern int afs_setattr(OSI_VC_DECL(avc), register struct vattr *attrs,
		       int flags, struct AFS_UCRED *acred);
#else
extern int afs_setattr(OSI_VC_DECL(avc), register struct vattr *attrs,
		       struct AFS_UCRED *acred);
#endif

/* VNOPS/afs_vnop_create.c */
#ifdef  AFS_OSF_ENV
extern int afs_create(struct nameidata *ndp, struct vattr *attrs);
#else /* AFS_OSF_ENV */
#ifdef AFS_SGI64_ENV
extern int afs_create(OSI_VC_DECL(adp), char *aname, struct vattr *attrs,
		      int flags, int amode, struct vcache **avcp,
		      struct AFS_UCRED *acred);
#else /* AFS_SGI64_ENV */
extern int afs_create(OSI_VC_DECL(adp), char *aname, struct vattr *attrs,
		      enum vcexcl aexcl, int amode, struct vcache **avcp,
		      struct AFS_UCRED *acred);
#endif /* AFS_SGI64_ENV */
#endif /* AFS_OSF_ENV */
extern int afs_LocalHero(register struct vcache *avc,
			 register struct dcache *adc,
			 register AFSFetchStatus * astat, register int aincr);


/* VNOPS/afs_vnop_flock.c */
extern void lockIdSet(struct AFS_FLOCK *flock, struct SimpleLocks *slp,
		      int clid);
extern int HandleFlock(register struct vcache *avc, int acom,
		       struct vrequest *areq, pid_t clid, int onlymine);



/* VNOPS/afs_vnop_lookup.c */
extern int EvalMountPoint(register struct vcache *avc, struct vcache *advc,
			  struct volume **avolpp,
			  register struct vrequest *areq);
extern void afs_InitFakeStat(struct afs_fakestat_state *state);
extern int afs_EvalFakeStat(struct vcache **avcp,
			    struct afs_fakestat_state *state,
			    struct vrequest *areq);
extern int afs_TryEvalFakeStat(struct vcache **avcp,
			       struct afs_fakestat_state *state,
			       struct vrequest *areq);
extern void afs_PutFakeStat(struct afs_fakestat_state *state);
extern int afs_ENameOK(register char *aname);
extern void Check_AtSys(register struct vcache *avc, char *aname,
			struct sysname_info *state, struct vrequest *areq);
extern int Next_AtSys(register struct vcache *avc, struct vrequest *areq,
		      struct sysname_info *state);
extern int afs_DoBulkStat(struct vcache *adp, long dirCookie,
			  struct vrequest *areqp);
extern int afs_lookup();


/* VNOPS/afs_vnop_open.c */
#ifdef AFS_SGI64_ENV
extern int afs_open(bhv_desc_t * bhv, struct vcache **avcp, afs_int32 aflags,
		    struct AFS_UCRED *acred);
#else
extern int afs_open(struct vcache **avcp, afs_int32 aflags,
		    struct AFS_UCRED *acred);
#endif


/* VNOPS/afs_vnop_read.c */
extern afs_int32 maxIHint;
extern afs_int32 nihints;
extern afs_int32 usedihint;
extern int afs_MemRead(register struct vcache *avc, struct uio *auio,
		       struct AFS_UCRED *acred, daddr_t albn,
		       struct buf **abpp, int noLock);
extern int afs_UFSRead(register struct vcache *avc, struct uio *auio,
		       struct AFS_UCRED *acred, daddr_t albn,
		       struct buf **abpp, int noLock);


/* VNOPS/afs_vnop_readdir.c */
extern int afs_rd_stash_i;


/* VNOPS/afs_vnop_remove.c */
extern int afsremove(register struct vcache *adp, register struct dcache *tdc,
		     register struct vcache *tvc, char *aname,
		     struct AFS_UCRED *acred, struct vrequest *treqp);
extern int afs_remunlink(register struct vcache *avc, register int doit);


/* VNOPS/afs_vnop_rename.c */
extern int afsrename(struct vcache *aodp, char *aname1, struct vcache *andp,
		     char *aname2, struct AFS_UCRED *acred,
		     struct vrequest *areq);


/* VNOPS/afs_vnop_symlink.c */
extern int afs_MemHandleLink(register struct vcache *avc,
			     struct vrequest *areq);
extern int afs_UFSHandleLink(register struct vcache *avc,
			     struct vrequest *areq);

/* VNOPS/afs_vnop_flock.c */
extern afs_int32 lastWarnTime;

/* VNOPS/afs_vnop_write.c */
extern int afs_MemWrite(register struct vcache *avc, struct uio *auio,
			int aio, struct AFS_UCRED *acred, int noLock);
extern int afs_StoreOnLastReference(register struct vcache *avc,
				    register struct vrequest *treq);
extern int afs_UFSWrite(register struct vcache *avc, struct uio *auio,
			int aio, struct AFS_UCRED *acred, int noLock);
extern int afs_DoPartialWrite(register struct vcache *avc,
			      struct vrequest *areq);
extern int afs_closex(register struct file *afd);

/* other VNOPS (please fix these) */
extern int afs_close();
extern int HandleIoctl();
extern int afs_fsync();
extern int afs_remove();
extern int afs_link();
extern int afs_rename();
extern int afs_mkdir();
extern int afs_rmdir();
extern int afs_symlink();
extern int afs_readdir();
extern int afs_readlink();
extern int afs_ustrategy();
extern int afs_lockctl();


/* afs_volume.c */
extern afs_int32 afs_FVIndex;
extern afs_int32 afs_volCounter;
extern afs_rwlock_t afs_xvolume;
extern struct volume *afs_volumes[NVOLS];
extern ino_t volumeInode;
extern struct volume *afs_FindVolume(struct VenusFid *afid,
				     afs_int32 locktype);
extern struct volume *afs_freeVolList;
extern afs_int32 fvTable[NFENTRIES];
extern void InstallVolumeEntry(struct volume *av, struct vldbentry *ve,
			       int acell);
extern void InstallNVolumeEntry(struct volume *av, struct nvldbentry *ve,
				int acell);
extern void InstallUVolumeEntry(struct volume *av, struct uvldbentry *ve,
				int acell, struct cell *tcell,
				struct vrequest *areq);
extern void afs_ResetVolumeInfo(struct volume *tv);
extern struct volume *afs_MemGetVolSlot(void);
extern void afs_ResetVolumes(struct server *srvp);
extern struct volume *afs_GetVolume(struct VenusFid *afid,
				    struct vrequest *areq,
				    afs_int32 locktype);
extern struct volume *afs_GetVolumeByName(register char *aname,
					  afs_int32 acell, int agood,
					  struct vrequest *areq,
					  afs_int32 locktype);
extern struct volume *afs_UFSGetVolSlot(void);
extern void afs_CheckVolumeNames(int flags);


/* Prototypes for generated files that aren't really in src/afs/ */

/* afs_uuid.c */
extern afs_int32 afs_uuid_equal(afsUUID * u1, afsUUID * u2);
extern afs_int32 afs_uuid_is_nil(afsUUID * u1);
extern void afs_htonuuid(afsUUID * uuidp);
extern void afs_ntohuuid(afsUUID * uuidp);
extern afs_int32 afs_uuid_create(afsUUID * uuid);
extern u_short afs_uuid_hash(afsUUID * uuid);


/* MISC PROTOTYPES - THESE SHOULD NOT BE HERE */
/* MOVE THEM TO APPROPRIATE LOCATIONS */
extern afs_int32 RXAFSCB_ExecuteRequest(struct rx_call *acall);
extern afs_int32 RXSTATS_ExecuteRequest(struct rx_call *acall);



#if defined(AFS_SUN5_ENV) || defined(AFS_LINUX20_ENV) || defined(AFS_AIX_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV) || defined(AFS_HPUX_ENV) || defined(AFS_SGI62_ENV) || defined(AFS_OSF_ENV)
#include "osi_prototypes.h"
#endif

#endif /* _AFS_PROTOTYPES_H_ */
