/*
 * 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
 */

/*  afs_fileprocs.c - Complete File Server request routines		 */
/* 									 */
/*  Information Technology Center					 */
/*  Carnegie Mellon University						 */
/* 									 */
/*  Date: 8/10/88							 */
/* 									 */
/*  Function	- A set	of routines to handle the various file Server	 */
/*		    requests; these routines are invoked by rxgen.	 */
/* 									 */
/* ********************************************************************** */

/*
 * GetVolumePackage disables Rx keepalives; PutVolumePackage re-enables.
 * If callbacks are to be broken, keepalives should be enabled in the
 * stub while that occurs; disabled while disk I/O is in process.
 */

/*
 * in Check_PermissionRights, certain privileges are afforded to the owner
 * of the volume, or the owner of a file.  Are these considered "use of
 * privilege"?
 */

#include <afsconfig.h>
#include <afs/param.h>
#include <afs/stds.h>

#include <roken.h>

#ifdef	AFS_SGI_ENV
#undef SHARED			/* XXX */
#endif

#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif

#ifdef HAVE_NETINET_IF_ETHER_H
#include <netinet/if_ether.h>
#endif

#if !defined(AFS_SGI_ENV) && defined(HAVE_SYS_MAP_H)
#include <sys/map.h>
#endif

#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif

#ifdef HAVE_SYS_LOCKF_H
#include <sys/lockf.h>
#endif

#ifdef HAVE_SYS_DK_H
#include <sys/dk.h>
#endif

#ifdef AFS_HPUX_ENV
/* included early because of name conflict on IOPEN */
#include <sys/inode.h>
#ifdef IOPEN
#undef IOPEN
#endif
#endif /* AFS_HPUX_ENV */

#include <afs/opr.h>
#include <rx/rx_queue.h>
#include <opr/lock.h>
#include <opr/proc.h>
#include <afs/nfs.h>
#include <afs/afsint.h>
#include <afs/vldbint.h>
#include <afs/errors.h>
#include <afs/ihandle.h>
#include <afs/vnode.h>
#include <afs/volume.h>
#include <afs/ptclient.h>
#include <afs/ptuser.h>
#include <afs/prs_fs.h>
#include <afs/acl.h>
#include <rx/rx.h>
#include <rx/rx_globals.h>

#include <afs/cellconfig.h>
#include <afs/keys.h>

#include <afs/partition.h>
#include "viced_prototypes.h"
#include "viced.h"
#include "host.h"
#include "callback.h"
#include <afs/unified_afs.h>
#include <afs/audit.h>
#include <afs/afsutil.h>
#include <afs/dir.h>

extern void SetDirHandle(DirHandle * dir, Vnode * vnode);
extern void FidZap(DirHandle * file);
extern void FidZero(DirHandle * file);

pthread_mutex_t fileproc_glock_mutex;

/* Useful local defines used by this module */

#define	DONTCHECK	0
#define	MustNOTBeDIR	1
#define	MustBeDIR	2

#define	TVS_SDATA	1
#define	TVS_SSTATUS	2
#define	TVS_CFILE	4
#define	TVS_SLINK	8
#define	TVS_MKDIR	0x10

#define	CHK_FETCH	0x10
#define	CHK_FETCHDATA	0x10
#define	CHK_FETCHACL	0x11
#define	CHK_FETCHSTATUS	0x12
#define	CHK_STOREDATA	0x00
#define	CHK_STOREACL	0x01
#define	CHK_STORESTATUS	0x02

#define	OWNERREAD	0400
#define	OWNERWRITE	0200
#define	OWNEREXEC	0100
#ifdef USE_GROUP_PERMS
#define GROUPREAD       0040
#define GROUPWRITE      0020
#define	GROUPREXEC	0010
#endif

/* The following errors were not defined in NT. They are given unique
 * names here to avoid any potential collision.
 */
#define FSERR_ELOOP 		 90
#define FSERR_EOPNOTSUPP	122
#define FSERR_ECONNREFUSED	130

#define	NOTACTIVECALL	0
#define	ACTIVECALL	1

#define CREATE_SGUID_ADMIN_ONLY 1


/**
 * Abort the fileserver on fatal errors returned from vnode operations.
 */
#define assert_vnode_success_or_salvaging(code) \
    opr_Assert((code) == 0 || (code) == VSALVAGE || (code) == VSALVAGING)

extern struct afsconf_dir *confDir;
extern afs_int32 dataVersionHigh;

extern int SystemId;
static struct AFSCallStatistics AFSCallStats;
struct fs_stats_FullPerfStats afs_FullPerfStats;
extern int AnonymousID;
static const char nullString[] = "";

struct afs_FSStats {
    afs_int32 NothingYet;
};

struct afs_FSStats afs_fsstats;

int supported = 1;
int Console = 0;
afs_int32 BlocksSpare = 1024;	/* allow 1 MB overruns */
afs_int32 PctSpare;
extern afs_int32 implicitAdminRights;
extern afs_int32 readonlyServer;
extern afs_int32 adminwriteServer;
extern int CopyOnWrite_calls, CopyOnWrite_off0, CopyOnWrite_size0;
extern afs_fsize_t CopyOnWrite_maxsize;

/*
 * Externals used by the xstat code.
 */
extern VolPkgStats VStats;
extern int CEs, CEBlocks;

extern int HTs, HTBlocks;

static afs_int32 FetchData_RXStyle(Volume * volptr, Vnode * targetptr,
				   struct rx_call *Call, afs_sfsize_t Pos,
				   afs_sfsize_t Len, afs_int32 Int64Mode,
				   afs_sfsize_t * a_bytesToFetchP,
				   afs_sfsize_t * a_bytesFetchedP);

static afs_int32 StoreData_RXStyle(Volume * volptr, Vnode * targetptr,
				   struct AFSFid *Fid, struct client *client,
				   struct rx_call *Call, afs_fsize_t Pos,
				   afs_fsize_t Length, afs_fsize_t FileLength,
				   int sync,
				   afs_sfsize_t * a_bytesToStoreP,
				   afs_sfsize_t * a_bytesStoredP);

#ifdef AFS_SGI_XFS_IOPS_ENV
#include <afs/xfsattrs.h>
static int
GetLinkCount(Volume * avp, struct stat *astat)
{
    if (!strcmp("xfs", astat->st_fstype)) {
	return (astat->st_mode & AFS_XFS_MODE_LINK_MASK);
    } else
	return astat->st_nlink;
}
#else
#define GetLinkCount(V, S) (S)->st_nlink
#endif

afs_int32
SpareComp(Volume * avolp)
{
    afs_int32 temp;

    FS_LOCK;
    if (PctSpare) {
	temp = V_maxquota(avolp);
	if (temp == 0) {
	    /* no matter; doesn't check in this case */
	    FS_UNLOCK;
	    return 0;
	}
	temp = (temp * PctSpare) / 100;
	FS_UNLOCK;
	return temp;
    } else {
	FS_UNLOCK;
	return BlocksSpare;
    }

}				/*SpareComp */

/*
 * Set the volume synchronization parameter for this volume.  If it changes,
 * the Cache Manager knows that the volume must be purged from the stat cache.
 */
static void
SetVolumeSync(struct AFSVolSync *async, Volume * avol)
{
    FS_LOCK;
    /* date volume instance was created */
    if (async) {
	if (avol)
	    async->spare1 = V_creationDate(avol);
	else
	    async->spare1 = 0;
	async->spare2 = 0;
	async->spare3 = 0;
	async->spare4 = 0;
	async->spare5 = 0;
	async->spare6 = 0;
    }
    FS_UNLOCK;
}				/*SetVolumeSync */

/**
 * Verify that the on-disk size for a vnode matches the length in the vnode
 * index.
 *
 * @param[in] vp   Volume pointer
 * @param[in] vnp  Vnode pointer
 * @param[in] alen Size of the vnode on disk, if known. If unknown, give -1,
 *                 and CheckLength itself will determine the on-disk size.
 *
 * @return operation status
 *  @retval 0 lengths match
 *  @retval nonzero Error; either the lengths do not match or there was an
 *                  error determining the on-disk size. The volume should be
 *                  taken offline and salvaged.
 */
static int
CheckLength(struct Volume *vp, struct Vnode *vnp, afs_sfsize_t alen)
{
    afs_sfsize_t vlen;
    VN_GET_LEN(vlen, vnp);

    if (alen < 0) {
	FdHandle_t *fdP;

	fdP = IH_OPEN(vnp->handle);
	if (fdP == NULL) {
	    ViceLog(0, ("CheckLength: cannot open inode for fid %" AFS_VOLID_FMT ".%lu.%lu\n",
	                afs_printable_VolumeId_lu(vp->hashid),
	                afs_printable_uint32_lu(Vn_id(vnp)),
	                afs_printable_uint32_lu(vnp->disk.uniquifier)));
	    return -1;
	}
	alen = FDH_SIZE(fdP);
	FDH_CLOSE(fdP);
	if (alen < 0) {
	    afs_int64 alen64 = alen;
	    ViceLog(0, ("CheckLength: cannot get size for inode for fid %"
	                AFS_VOLID_FMT ".%lu.%lu; FDH_SIZE returned %" AFS_INT64_FMT "\n",
	                afs_printable_VolumeId_lu(vp->hashid),
	                afs_printable_uint32_lu(Vn_id(vnp)),
	                afs_printable_uint32_lu(vnp->disk.uniquifier),
	                alen64));
	    return -1;
	}
    }

    if (alen != vlen) {
	afs_int64 alen64 = alen, vlen64 = vlen;
	ViceLog(0, ("Fid %" AFS_VOLID_FMT ".%lu.%lu has inconsistent length (index "
	            "%lld inode %lld ); volume must be salvaged\n",
	            afs_printable_VolumeId_lu(vp->hashid),
	            afs_printable_uint32_lu(Vn_id(vnp)),
	            afs_printable_uint32_lu(vnp->disk.uniquifier),
	            vlen64, alen64));
	return -1;
    }
    return 0;
}

static void
LogClientError(const char *message, struct rx_connection *tcon, afs_int32 viceid, struct AFSFid *Fid)
{
    char hoststr[16];
    if (Fid) {
	ViceLog(0, ("%s while handling request from host %s:%d viceid %d "
	            "fid %" AFS_VOLID_FMT ".%lu.%lu, failing request\n",
	            message,
	            afs_inet_ntoa_r(rx_HostOf(rx_PeerOf(tcon)), hoststr),
	            (int)ntohs(rx_PortOf(rx_PeerOf(tcon))),
	            viceid,
	            afs_printable_VolumeId_lu(Fid->Volume),
	            afs_printable_uint32_lu(Fid->Vnode),
	            afs_printable_uint32_lu(Fid->Unique)));
    } else {
	ViceLog(0, ("%s while handling request from host %s:%d viceid %d "
	            "fid (none), failing request\n",
	            message,
	            afs_inet_ntoa_r(rx_HostOf(rx_PeerOf(tcon)), hoststr),
	            (int)ntohs(rx_PortOf(rx_PeerOf(tcon))),
	            viceid));
    }
}

/*
 * Note that this function always returns a held host, so
 * that CallPostamble can block without the host's disappearing.
 * Call returns rx connection in passed in *tconn
 *
 * 'Fid' is optional, and is just used for printing log messages.
 */
static int
CallPreamble(struct rx_call *acall, int activecall, struct AFSFid *Fid,
	     struct rx_connection **tconn, struct host **ahostp)
{
    struct host *thost;
    struct client *tclient;
    afs_int32 viceid = -1;
    int retry_flag = 1;
    int code = 0;
    char hoststr[16], hoststr2[16];
    struct ubik_client *uclient;
    *ahostp = NULL;

    if (!tconn) {
	ViceLog(0, ("CallPreamble: unexpected null tconn!\n"));
	return -1;
    }
    *tconn = rx_ConnectionOf(acall);

    H_LOCK;
  retry:
    tclient = h_FindClient_r(*tconn, &viceid);
    if (!tclient) {
	H_UNLOCK;
	LogClientError("CallPreamble: Couldn't get client", *tconn, viceid, Fid);
	return VBUSY;
    }
    thost = tclient->z.host;
    if (tclient->z.prfail == 1) {	/* couldn't get the CPS */
	if (!retry_flag) {
	    h_ReleaseClient_r(tclient);
	    h_Release_r(thost);
	    H_UNLOCK;
	    LogClientError("CallPreamble: Couldn't get CPS", *tconn, viceid, Fid);
	    return -1001;
	}
	retry_flag = 0;		/* Retry once */

	/* Take down the old connection and re-read the key file */
	ViceLog(0,
		("CallPreamble: Couldn't get CPS. Reconnect to ptserver\n"));
	uclient = (struct ubik_client *)pthread_getspecific(viced_uclient_key);

	/* Is it still necessary to drop this? We hit the net, we should... */
	H_UNLOCK;
	if (uclient) {
	    hpr_End(uclient);
	    uclient = NULL;
	}
	code = hpr_Initialize(&uclient);

	if (!code)
	    opr_Verify(pthread_setspecific(viced_uclient_key,
					   (void *)uclient) == 0);
	H_LOCK;

	if (code) {
	    h_ReleaseClient_r(tclient);
	    h_Release_r(thost);
	    H_UNLOCK;
	    LogClientError("CallPreamble: couldn't reconnect to ptserver", *tconn, viceid, Fid);
	    return -1001;
	}

	tclient->z.prfail = 2;	/* Means re-eval client's cps */
	h_ReleaseClient_r(tclient);
	h_Release_r(thost);
	goto retry;
    }

    tclient->z.LastCall = thost->z.LastCall = time(NULL);
    if (activecall)		/* For all but "GetTime", "GetStats", and "GetCaps" calls */
	thost->z.ActiveCall = thost->z.LastCall;

    h_Lock_r(thost);
    if (thost->z.hostFlags & HOSTDELETED) {
	ViceLog(3,
		("Discarded a packet for deleted host %s:%d\n",
		 afs_inet_ntoa_r(thost->z.host, hoststr), ntohs(thost->z.port)));
	code = VBUSY;		/* raced, so retry */
    } else if ((thost->z.hostFlags & VENUSDOWN)
	       || (thost->z.hostFlags & HFE_LATER)) {
	if (BreakDelayedCallBacks_r(thost)) {
	    ViceLog(0,
		    ("BreakDelayedCallbacks FAILED for host %s:%d which IS UP.  Connection from %s:%d.  Possible network or routing failure.\n",
		     afs_inet_ntoa_r(thost->z.host, hoststr), ntohs(thost->z.port), afs_inet_ntoa_r(rxr_HostOf(*tconn), hoststr2),
		     ntohs(rxr_PortOf(*tconn))));
	    if (MultiProbeAlternateAddress_r(thost)) {
		ViceLog(0,
			("MultiProbe failed to find new address for host %s:%d\n",
			 afs_inet_ntoa_r(thost->z.host, hoststr),
			 ntohs(thost->z.port)));
		code = -1;
	    } else {
		ViceLog(0,
			("MultiProbe found new address for host %s:%d\n",
			 afs_inet_ntoa_r(thost->z.host, hoststr),
			 ntohs(thost->z.port)));
		if (BreakDelayedCallBacks_r(thost)) {
		    ViceLog(0,
			    ("BreakDelayedCallbacks FAILED AGAIN for host %s:%d which IS UP.  Connection from %s:%d.  Possible network or routing failure.\n",
			      afs_inet_ntoa_r(thost->z.host, hoststr), ntohs(thost->z.port), afs_inet_ntoa_r(rxr_HostOf(*tconn), hoststr2),
			      ntohs(rxr_PortOf(*tconn))));
		    code = -1;
		}
	    }
	}
    } else {
	code = 0;
    }

    h_ReleaseClient_r(tclient);
    h_Unlock_r(thost);
    H_UNLOCK;
    *ahostp = thost;
    return code;

}				/*CallPreamble */


static afs_int32
CallPostamble(struct rx_connection *aconn, afs_int32 ret,
	      struct host *ahost)
{
    struct host *thost;
    struct client *tclient;
    int translate = 0;

    H_LOCK;
    tclient = h_FindClient_r(aconn, NULL);
    if (!tclient)
	goto busyout;
    thost = tclient->z.host;
    if (thost->z.hostFlags & HERRORTRANS)
	translate = 1;
    h_ReleaseClient_r(tclient);

    if (ahost) {
	    if (ahost != thost) {
		    /* host/client recycle */
		    char hoststr[16], hoststr2[16];
		    ViceLog(0, ("CallPostamble: ahost %s:%d (%p) != thost "
				"%s:%d (%p)\n",
				afs_inet_ntoa_r(ahost->z.host, hoststr),
				ntohs(ahost->z.port),
				ahost,
				afs_inet_ntoa_r(thost->z.host, hoststr2),
				ntohs(thost->z.port),
				thost));
	    }
	    /* return the reference taken in CallPreamble */
	    h_Release_r(ahost);
    } else {
	    char hoststr[16];
	    ViceLog(0, ("CallPostamble: null ahost for thost %s:%d (%p)\n",
			afs_inet_ntoa_r(thost->z.host, hoststr),
			ntohs(thost->z.port),
			thost));
    }

    /* return the reference taken in local h_FindClient_r--h_ReleaseClient_r
     * does not decrement refcount on client->z.host */
    h_Release_r(thost);

 busyout:
    H_UNLOCK;
    return (translate ? sys_error_to_et(ret) : ret);
}				/*CallPostamble */

/*
 * Returns the volume and vnode pointers associated with file Fid; the lock
 * type on the vnode is set to lock. Note that both volume/vnode's ref counts
 * are incremented and they must be eventualy released.
 */
static afs_int32
CheckVnodeWithCall(AFSFid * fid, Volume ** volptr, struct VCallByVol *cbv,
                   Vnode ** vptr, int lock)
{
    Error fileCode = 0;
    Error local_errorCode, errorCode = -1;
    static struct timeval restartedat = { 0, 0 };

    if (fid->Volume == 0 || fid->Vnode == 0)	/* not: || fid->Unique == 0) */
	return (EINVAL);
    if ((*volptr) == 0) {
	extern int VInit;

	while (1) {
	    int restarting =
#ifdef AFS_DEMAND_ATTACH_FS
		VSALVAGE
#else
		VRESTARTING
#endif
		;
	    static const struct timespec timeout_ts = { 0, 0 };
	    static const struct timespec * const ts = &timeout_ts;

	    errorCode = 0;
	    *volptr = VGetVolumeWithCall(&local_errorCode, &errorCode,
	                                       fid->Volume, ts, cbv);
	    if (!errorCode) {
		opr_Assert(*volptr);
		break;
	    }
	    if ((errorCode == VOFFLINE) && (VInit < 2)) {
		/* The volume we want may not be attached yet because
		 * the volume initialization is not yet complete.
		 * We can do several things:
		 *     1.  return -1, which will cause users to see
		 *         "connection timed out".  This is more or
		 *         less the same as always, except that the servers
		 *         may appear to bounce up and down while they
		 *         are actually restarting.
		 *     2.  return VBUSY which will cause clients to
		 *         sleep and retry for 6.5 - 15 minutes, depending
		 *         on what version of the CM they are running.  If
		 *         the file server takes longer than that interval
		 *         to attach the desired volume, then the application
		 *         will see an ENODEV or EIO.  This approach has
		 *         the advantage that volumes which have been attached
		 *         are immediately available, it keeps the server's
		 *         immediate backlog low, and the call is interruptible
		 *         by the user.  Users see "waiting for busy volume."
		 *     3.  sleep here and retry.  Some people like this approach
		 *         because there is no danger of seeing errors.  However,
		 *         this approach only works with a bounded number of
		 *         clients, since the pending queues will grow without
		 *         stopping.  It might be better to find a way to take
		 *         this call and stick it back on a queue in order to
		 *         recycle this thread for a different request.
		 *     4.  Return a new error code, which new cache managers will
		 *         know enough to interpret as "sleep and retry", without
		 *         the upper bound of 6-15 minutes that is imposed by the
		 *         VBUSY handling.  Users will see "waiting for
		 *         busy volume," so they know that something is
		 *         happening.  Old cache managers must be able to do
		 *         something reasonable with this, for instance, mark the
		 *         server down.  Fortunately, any error code < 0
		 *         will elicit that behavior. See #1.
		 *     5.  Some combination of the above.  I like doing #2 for 10
		 *         minutes, followed by #4.  3.1b and 3.2 cache managers
		 *         will be fine as long as the restart period is
		 *         not longer than 6.5 minutes, otherwise they may
		 *         return ENODEV to users.  3.3 cache managers will be
		 *         fine for 10 minutes, then will return
		 *         ETIMEDOUT.  3.4 cache managers will just wait
		 *         until the call works or fails definitively.
		 *  NB. The problem with 2,3,4,5 is that old clients won't
		 *  fail over to an alternate read-only replica while this
		 *  server is restarting.  3.4 clients will fail over right away.
		 */
		if (restartedat.tv_sec == 0) {
		    /* I'm not really worried about when we restarted, I'm   */
		    /* just worried about when the first VBUSY was returned. */
		    gettimeofday(&restartedat, 0);
		    if (busyonrst) {
			FS_LOCK;
			afs_perfstats.fs_nBusies++;
			FS_UNLOCK;
		    }
		    return (busyonrst ? VBUSY : restarting);
		} else {
		    struct timeval now;
		    gettimeofday(&now, 0);
		    if ((now.tv_sec - restartedat.tv_sec) < (11 * 60)) {
			if (busyonrst) {
			    FS_LOCK;
			    afs_perfstats.fs_nBusies++;
			    FS_UNLOCK;
			}
			return (busyonrst ? VBUSY : restarting);
		    } else {
			return (restarting);
		    }
		}
	    }
	    /* allow read operations on busy volume.
	     * must check local_errorCode because demand attach fs
	     * can have local_errorCode == VSALVAGING, errorCode == VBUSY */
	    else if (local_errorCode == VBUSY && lock == READ_LOCK) {
#ifdef AFS_DEMAND_ATTACH_FS
		/* DAFS case is complicated by the fact that local_errorCode can
		 * be VBUSY in cases where the volume is truly offline */
		if (!*volptr) {
		    /* volume is in VOL_STATE_UNATTACHED */
		    return (errorCode);
		}
#endif /* AFS_DEMAND_ATTACH_FS */
		errorCode = 0;
		break;
	    } else if (errorCode)
		return (errorCode);
	}
    }
    opr_Assert(*volptr);

    /* get the vnode  */
    *vptr = VGetVnode(&errorCode, *volptr, fid->Vnode, lock);
    if (errorCode)
	return (errorCode);
    if ((*vptr)->disk.uniquifier != fid->Unique) {
	VPutVnode(&fileCode, *vptr);
	assert_vnode_success_or_salvaging(fileCode);
	*vptr = 0;
	return (VNOVNODE);	/* return the right error code, at least */
    }
    return (0);
}				/*CheckVnode */

static_inline afs_int32
CheckVnode(AFSFid * fid, Volume ** volptr, Vnode ** vptr, int lock)
{
    return CheckVnodeWithCall(fid, volptr, NULL, vptr, lock);
}

/*
 * This routine returns the ACL associated with the targetptr. If the
 * targetptr isn't a directory, we access its parent dir and get the ACL
 * thru the parent; in such case the parent's vnode is returned in
 * READ_LOCK mode.
 */
static afs_int32
SetAccessList(Vnode ** targetptr, Volume ** volume,
	      struct acl_accessList **ACL, int *ACLSize, Vnode ** parent,
	      AFSFid * Fid, int Lock)
{
    if ((*targetptr)->disk.type == vDirectory) {
	*parent = 0;
	*ACL = VVnodeACL(*targetptr);
	*ACLSize = VAclSize(*targetptr);
	return (0);
    } else {
	opr_Assert(Fid != 0);
	while (1) {
	    VnodeId parentvnode;
	    Error errorCode = 0;

	    parentvnode = (*targetptr)->disk.parent;
	    VPutVnode(&errorCode, *targetptr);
	    *targetptr = 0;
	    if (errorCode)
		return (errorCode);
	    *parent = VGetVnode(&errorCode, *volume, parentvnode, READ_LOCK);
	    if (errorCode)
		return (errorCode);
	    *ACL = VVnodeACL(*parent);
	    *ACLSize = VAclSize(*parent);
	    if ((errorCode = CheckVnode(Fid, volume, targetptr, Lock)) != 0)
		return (errorCode);
	    if ((*targetptr)->disk.parent != parentvnode) {
		VPutVnode(&errorCode, *parent);
		*parent = 0;
		if (errorCode)
		    return (errorCode);
	    } else
		return (0);
	}
    }

}				/*SetAccessList */

/* Must not be called with H_LOCK held */
static void
client_CheckRights(struct client *client, struct acl_accessList *ACL,
		   afs_int32 *rights)
{
    *rights = 0;
    ObtainReadLock(&client->lock);
    if (client->z.CPS.prlist_len > 0 && !client->z.deleted &&
	client->z.host && !(client->z.host->z.hostFlags & HOSTDELETED))
	acl_CheckRights(ACL, &client->z.CPS, rights);
    ReleaseReadLock(&client->lock);
}

/* Must not be called with H_LOCK held */
static afs_int32
client_HasAsMember(struct client *client, afs_int32 id)
{
    afs_int32 code = 0;

    ObtainReadLock(&client->lock);
    if (client->z.CPS.prlist_len > 0 && !client->z.deleted &&
	client->z.host && !(client->z.host->z.hostFlags & HOSTDELETED))
	code = acl_IsAMember(id, &client->z.CPS);
    ReleaseReadLock(&client->lock);
    return code;
}

/*
 * Compare the directory's ACL with the user's access rights in the client
 * connection and return the user's and everybody else's access permissions
 * in rights and anyrights, respectively
 */
static afs_int32
GetRights(struct client *client, struct acl_accessList *ACL,
	  afs_int32 * rights, afs_int32 * anyrights)
{
    extern prlist SystemAnyUserCPS;
    afs_int32 hrights = 0;

    if (acl_CheckRights(ACL, &SystemAnyUserCPS, anyrights) != 0) {
	ViceLog(0, ("CheckRights failed\n"));
	*anyrights = 0;
    }
    *rights = 0;

    client_CheckRights(client, ACL, rights);

    /* wait if somebody else is already doing the getCPS call */
    H_LOCK;
    while (client->z.host->z.hostFlags & HCPS_INPROGRESS) {
	client->z.host->z.hostFlags |= HCPS_WAITING;	/* I am waiting */
	opr_cv_wait(&client->z.host->cond, &host_glock_mutex);
    }

    if (!client->z.host->z.hcps.prlist_len || !client->z.host->z.hcps.prlist_val) {
	char hoststr[16];
	ViceLog(5,
		("CheckRights: len=%u, for host=%s:%d\n",
		 client->z.host->z.hcps.prlist_len,
		 afs_inet_ntoa_r(client->z.host->z.host, hoststr),
		 ntohs(client->z.host->z.port)));
    } else
	acl_CheckRights(ACL, &client->z.host->z.hcps, &hrights);
    H_UNLOCK;
    /* Allow system:admin the rights given with the -implicit option */
    if (client_HasAsMember(client, SystemId))
	*rights |= implicitAdminRights;

    *rights |= hrights;
    *anyrights |= hrights;

    return (0);

}				/*GetRights */

/*
 * VanillaUser returns 1 (true) if the user is a vanilla user (i.e., not
 * a System:Administrator)
 */
static afs_int32
VanillaUser(struct client *client)
{
    if (client_HasAsMember(client, SystemId))
	return (0);		/* not a system administrator, then you're "vanilla" */
    return (1);

}				/*VanillaUser */


/*------------------------------------------------------------------------
 * GetVolumePackageWithCall
 *
 * Description:
 *      This unusual afs_int32-parameter routine encapsulates all volume
 *      package related operations together in a single function; it's
 *      called by almost all AFS interface calls.
 *
 * Arguments:
 *      acall               : Ptr to Rx call on which this request came in.
 *      cbv                 : struct containing the RX call for offline cancels
 *      Fid                 : the AFS fid the caller is acting on
 *      volptr              : returns a pointer to the volume struct
 *      targetptr           : returns a pointer to the vnode struct
 *      chkforDir           : whether to check for if vnode is a dir
 *      parent              : returns a pointer to the parent of this vnode
 *      client              : returns a pointer to the calling client
 *      locktype            : indicates what kind of lock to take on vnodes
 *      rights              : returns a pointer to caller's rights
 *      anyrights           : returns a pointer to anonymous' rights
 *      remote		    : indicates that the volume is a remote RW replica
 *
 * Returns:
 *      0 on success
 *      appropriate error based on permission or invalid operation.
 *
 * Environment:
 *      Nothing interesting.
 *
 * Side Effects:
 *      On success, disables keepalives on the call. Caller should re-enable
 *      after completing disk I/O.
 *------------------------------------------------------------------------*/
static afs_int32
GetVolumePackageWithCall(struct rx_call *acall, struct VCallByVol *cbv,
                         AFSFid * Fid, Volume ** volptr, Vnode ** targetptr,
                         int chkforDir, Vnode ** parent,
			 struct client **client, int locktype,
			 afs_int32 * rights, afs_int32 * anyrights, int remote)
{
    struct acl_accessList *aCL = NULL;	/* Internal access List */
    int aCLSize;		/* size of the access list */
    Error errorCode = 0;		/* return code to caller */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    if ((errorCode = CheckVnodeWithCall(Fid, volptr, cbv, targetptr, locktype)))
	goto gvpdone;

    if (chkforDir) {
	if (chkforDir == MustNOTBeDIR
	    && ((*targetptr)->disk.type == vDirectory)) {
	    errorCode = EISDIR;
	    goto gvpdone;
	}
	else if (chkforDir == MustBeDIR
		 && ((*targetptr)->disk.type != vDirectory)) {
	    errorCode = ENOTDIR;
	    goto gvpdone;
	}
    }
    /*
     * If the remote flag is set, the current call is dealing with a remote RW
     * replica, and it can be assumed that the appropriate access checks were
     * done by the calling server hosting the master volume.
     */
    if (!remote) {
	if ((errorCode = SetAccessList(targetptr, volptr, &aCL, &aCLSize, parent,
		(chkforDir == MustBeDIR ? (AFSFid *) 0 : Fid),
		(chkforDir == MustBeDIR ? 0 : locktype))) != 0)
	    goto gvpdone;
	if (chkforDir == MustBeDIR)
	    opr_Assert((*parent) == 0);
	if (!(*client)) {
	    if ((errorCode = GetClient(tcon, client)) != 0)
		goto gvpdone;
	    if (!(*client)) {
		errorCode = EINVAL;
		goto gvpdone;
	    }
	}
	GetRights(*client, aCL, rights, anyrights);
	/* ok, if this is not a dir, set the PRSFS_ADMINISTER bit iff we're the owner */
	if ((*targetptr)->disk.type != vDirectory) {
	    /* anyuser can't be owner, so only have to worry about rights, not anyrights */
	    if ((*targetptr)->disk.owner == (*client)->z.ViceId)
		(*rights) |= PRSFS_ADMINISTER;
	    else
		(*rights) &= ~PRSFS_ADMINISTER;
	}
#ifdef ADMIN_IMPLICIT_LOOKUP
	/* admins get automatic lookup on everything */
	if (!VanillaUser(*client))
	    (*rights) |= PRSFS_LOOKUP;
#endif /* ADMIN_IMPLICIT_LOOKUP */
    }
gvpdone:
    return errorCode;

}				/*GetVolumePackage */

static_inline afs_int32
GetVolumePackage(struct rx_call *acall, AFSFid * Fid, Volume ** volptr,
		 Vnode ** targetptr, int chkforDir, Vnode ** parent,
		 struct client **client, int locktype, afs_int32 * rights,
		 afs_int32 * anyrights)
{
    return GetVolumePackageWithCall(acall, NULL, Fid, volptr, targetptr,
                                    chkforDir, parent, client, locktype,
                                    rights, anyrights, 0);
}


/*------------------------------------------------------------------------
 * PutVolumePackageWithCall
 *
 * Description:
 *      This is the opposite of GetVolumePackage(), and is always used at
 *      the end of AFS calls to put back all used vnodes and the volume
 *      in the proper order!
 *
 * Arguments:
 *      acall               : Ptr to Rx call on which this request came in.
 *      parentwhentargetnotdir : a pointer to the parent when the target isn't
 *                            a directory vnode
 *      targetptr           : a pointer to the vnode struct
 *      parentptr           : a pointer to the parent of this vnode
 *      volptr              : a pointer to the volume structure
 *      client              : a pointer to the calling client
 *      cbv                 : struct containing the RX call for offline cancels
 *
 * Returns:
 *      Nothing
 *
 * Environment:
 *      Nothing interesting.
 *
 * Side Effects:
 *      Enables keepalives on the call.
 *------------------------------------------------------------------------*/
static void
PutVolumePackageWithCall(struct rx_call *acall, Vnode *
			 parentwhentargetnotdir, Vnode * targetptr,
                         Vnode * parentptr, Volume * volptr,
                         struct client **client, struct VCallByVol *cbv)
{
    Error fileCode = 0;		/* Error code returned by the volume package */

    if (parentwhentargetnotdir) {
	VPutVnode(&fileCode, parentwhentargetnotdir);
	assert_vnode_success_or_salvaging(fileCode);
    }
    if (targetptr) {
	VPutVnode(&fileCode, targetptr);
	assert_vnode_success_or_salvaging(fileCode);
    }
    if (parentptr) {
	VPutVnode(&fileCode, parentptr);
	assert_vnode_success_or_salvaging(fileCode);
    }
    if (volptr) {
	VPutVolumeWithCall(volptr, cbv);
    }

    if (*client) {
	PutClient(client);
    }
}				/*PutVolumePackage */

static_inline void
PutVolumePackage(struct rx_call *acall, Vnode * parentwhentargetnotdir,
		 Vnode * targetptr, Vnode * parentptr, Volume * volptr,
		 struct client **client)
{
    PutVolumePackageWithCall(acall, parentwhentargetnotdir, targetptr,
			     parentptr, volptr, client, NULL);
}

static int
VolumeOwner(struct client *client, Vnode * targetptr)
{
    afs_int32 owner = V_owner(targetptr->volumePtr);	/* get volume owner */

    if (owner >= 0)
	return (client->z.ViceId == owner);
    else {
	/*
	 * We don't have to check for host's cps since only regular
	 * viceid are volume owners.
	 */
	return (client_HasAsMember(client, owner));
    }

}				/*VolumeOwner */

static int
VolumeRootVnode(Vnode * targetptr)
{
    return ((targetptr->vnodeNumber == ROOTVNODE)
	    && (targetptr->disk.uniquifier == 1));

}				/*VolumeRootVnode */

/**
 * Check if server can perform writes.
 *
 * This functions checks if the fileserver is read-only for the client received
 * as an argument. Read-only fileservers allow write requests for members of
 * system:administrators when started with both -readonly and -admin-write.
 *
 * @param[in]  client  calling user
 *
 * @return 1 if not read-only for this user; 0 otherwise
 */
static int
IsWriteAllowed(struct client *client)
{
    if (readonlyServer) {
	if (adminwriteServer && !VanillaUser(client)) {
	    /* admins can write */
	    return 1;
	}
	return 0;
    }
    return 1;
}

/*
 * Check if target file has the proper access permissions for the Fetch
 * (FetchData, FetchACL, FetchStatus) and Store (StoreData, StoreACL,
 * StoreStatus) related calls
 */
/* this code should probably just set a "priv" flag where all the audit events
 * are now, and only generate the audit event once at the end of the routine,
 * thus only generating the event if all the checks succeed, but only because
 * of the privilege       XXX
 */
static afs_int32
Check_PermissionRights(Vnode * targetptr, struct client *client,
		       afs_int32 rights, int CallingRoutine,
		       AFSStoreStatus * InStatus)
{
    Error errorCode = 0;
#define OWNSp(client, target) ((client)->z.ViceId == (target)->disk.owner)
#define CHOWN(i,t) (((i)->Mask & AFS_SETOWNER) &&((i)->Owner != (t)->disk.owner))
#define CHGRP(i,t) (((i)->Mask & AFS_SETGROUP) &&((i)->Group != (t)->disk.group))

    if (CallingRoutine & CHK_FETCH) {
	if (CallingRoutine == CHK_FETCHDATA || VanillaUser(client)) {
	    if (targetptr->disk.type == vDirectory
		|| targetptr->disk.type == vSymlink) {
		if (!(rights & PRSFS_LOOKUP)
#ifdef ADMIN_IMPLICIT_LOOKUP
		    /* grant admins fetch on all directories */
		    && VanillaUser(client)
#endif /* ADMIN_IMPLICIT_LOOKUP */
		    && !VolumeOwner(client, targetptr))
		    return (EACCES);
	    } else {		/* file */
		/* must have read access, or be owner and have insert access */
		if (!(rights & PRSFS_READ)
		    && !((OWNSp(client, targetptr) && (rights & PRSFS_INSERT)
			  && (client->z.ViceId != AnonymousID))))
		    return (EACCES);
	    }
	    if (CallingRoutine == CHK_FETCHDATA
		&& targetptr->disk.type == vFile)
#ifdef USE_GROUP_PERMS
		if (!OWNSp(client, targetptr)
		    && !client_HasAsMember(client, targetptr->disk.owner)) {
		    errorCode =
			(((GROUPREAD | GROUPEXEC) & targetptr->disk.modeBits)
			 ? 0 : EACCES);
		} else {
		    errorCode =
			(((OWNERREAD | OWNEREXEC) & targetptr->disk.modeBits)
			 ? 0 : EACCES);
		}
#else
		/*
		 * The check with the ownership below is a kludge to allow
		 * reading of files created with no read permission. The owner
		 * of the file is always allowed to read it.
		 */
		if ((client->z.ViceId != targetptr->disk.owner)
		    && VanillaUser(client))
		    errorCode =
			(((OWNERREAD | OWNEREXEC) & targetptr->disk.
			  modeBits) ? 0 : EACCES);
#endif
	} else {		/*  !VanillaUser(client) && !FetchData */

	    osi_audit(PrivilegeEvent, 0, AUD_ID,
		      (client ? client->z.ViceId : 0), AUD_INT, CallingRoutine,
		      AUD_END);
	}
    } else {			/* a store operation */
	if (!IsWriteAllowed(client)) {
	    return (VREADONLY);
	}
	if ((rights & PRSFS_INSERT) && OWNSp(client, targetptr)
	    && (CallingRoutine != CHK_STOREACL)
	    && (targetptr->disk.type == vFile)) {
	    /* bypass protection checks on first store after a create
	     * for the creator; also prevent chowns during this time
	     * unless you are a system administrator */
	  /******  InStatus->Owner && UnixModeBits better be SET!! */
	    if (CHOWN(InStatus, targetptr) || CHGRP(InStatus, targetptr)) {
		if (VanillaUser(client))
		    return (EPERM);	/* Was EACCES */
		else
		    osi_audit(PrivilegeEvent, 0, AUD_ID,
			      (client ? client->z.ViceId : 0), AUD_INT,
			      CallingRoutine, AUD_END);
	    }
	} else {
	    if (CallingRoutine != CHK_STOREDATA && !VanillaUser(client)) {
		osi_audit(PrivilegeEvent, 0, AUD_ID,
			  (client ? client->z.ViceId : 0), AUD_INT,
			  CallingRoutine, AUD_END);
	    } else {
		if (CallingRoutine == CHK_STOREACL) {
		    if (!(rights & PRSFS_ADMINISTER)
			&& !VolumeOwner(client, targetptr))
			return (EACCES);
		} else {	/* store data or status */
		    /* watch for chowns and chgrps */
		    if (CHOWN(InStatus, targetptr)
			|| CHGRP(InStatus, targetptr)) {
			if (VanillaUser(client))
			    return (EPERM);	/* Was EACCES */
			else
			    osi_audit(PrivilegeEvent, 0, AUD_ID,
				      (client ? client->z.ViceId : 0), AUD_INT,
				      CallingRoutine, AUD_END);
		    }
		    /* must be sysadmin to set suid/sgid bits */
		    if ((InStatus->Mask & AFS_SETMODE) &&
#ifdef AFS_NT40_ENV
			(InStatus->UnixModeBits & 0xc00) != 0) {
#else
			(InStatus->UnixModeBits & (S_ISUID | S_ISGID)) != 0) {
#endif
			if (VanillaUser(client))
			    return (EACCES);
			else
			    osi_audit(PrivSetID, 0, AUD_ID,
				      (client ? client->z.ViceId : 0), AUD_INT,
				      CallingRoutine, AUD_END);
		    }
		    if (CallingRoutine == CHK_STOREDATA) {
			if (!(rights & PRSFS_WRITE))
			    return (EACCES);
			/* Next thing is tricky.  We want to prevent people
			 * from writing files sans 0200 bit, but we want
			 * creating new files with 0444 mode to work.  We
			 * don't check the 0200 bit in the "you are the owner"
			 * path above, but here we check the bit.  However, if
			 * you're a system administrator, we ignore the 0200
			 * bit anyway, since you may have fchowned the file,
			 * too */
#ifdef USE_GROUP_PERMS
			if ((targetptr->disk.type == vFile)
			    && VanillaUser(client)) {
			    if (!OWNSp(client, targetptr)
				&& !client_HasAsMember(client, targetptr->disk.owner)) {
				errorCode =
				    ((GROUPWRITE & targetptr->disk.modeBits)
				     ? 0 : EACCES);
			    } else {
				errorCode =
				    ((OWNERWRITE & targetptr->disk.modeBits)
				     ? 0 : EACCES);
			    }
			} else
#endif
			    if ((targetptr->disk.type != vDirectory)
				&& (!(targetptr->disk.modeBits & OWNERWRITE))) {
			    if (VanillaUser(client))
				return (EACCES);
			    else
				osi_audit(PrivilegeEvent, 0, AUD_ID,
					  (client ? client->z.ViceId : 0),
					  AUD_INT, CallingRoutine, AUD_END);
			}
		    } else {	/* a status store */
			if (targetptr->disk.type == vDirectory) {
			    if (!(rights & PRSFS_DELETE)
				&& !(rights & PRSFS_INSERT))
				return (EACCES);
			} else {	/* a file  or symlink */
			    if (!(rights & PRSFS_WRITE))
				return (EACCES);
			}
		    }
		}
	    }
	}
    }
    return (errorCode);

}				/*Check_PermissionRights */


/*
 * The Access List information is converted from its internal form in the
 * target's vnode buffer (or its parent vnode buffer if not a dir), to an
 * external form and returned back to the caller, via the AccessList
 * structure
 */
static afs_int32
RXFetch_AccessList(Vnode * targetptr, Vnode * parentwhentargetnotdir,
		   struct AFSOpaque *AccessList)
{
    char *eACL;			/* External access list placeholder */

    if (acl_Externalize_pr
	(hpr_IdToName, (targetptr->disk.type ==
	  vDirectory ? VVnodeACL(targetptr) :
	  VVnodeACL(parentwhentargetnotdir)), &eACL) != 0) {
	return EIO;
    }
    if ((strlen(eACL) + 1) > AFSOPAQUEMAX) {
	acl_FreeExternalACL(&eACL);
	return (E2BIG);
    } else {
	strcpy((char *)(AccessList->AFSOpaque_val), (char *)eACL);
	AccessList->AFSOpaque_len = strlen(eACL) + 1;
    }
    acl_FreeExternalACL(&eACL);
    return (0);

}				/*RXFetch_AccessList */


/*
 * The Access List information is converted from its external form in the
 * input AccessList structure to the internal representation and copied into
 * the target dir's vnode storage.
 */
static afs_int32
RXStore_AccessList(Vnode * targetptr, char *AccessList)
{
    int code;
    struct acl_accessList *newACL = NULL;

    if (acl_Internalize_pr(hpr_NameToId, AccessList, &newACL)
	!= 0) {
	code = EINVAL;
	goto done;
    }
    if ((newACL->size + 4) > VAclSize(targetptr)) {
	code = E2BIG;
	goto done;
    }
    memcpy((char *)VVnodeACL(targetptr), (char *)newACL, (int)(newACL->size));
    code = 0;

 done:
    acl_FreeACL(&newACL);
    return code;

}				/*RXStore_AccessList */

static int
CheckLink(Volume *volptr, FdHandle_t *fdP, const char *descr)
{
    int code;
    afs_ino_str_t ino;

    code = FDH_ISUNLINKED(fdP);
    if (code < 0) {
	ViceLog(0, ("CopyOnWrite: error fstating volume %u inode %s (%s), errno %d\n",
	            V_id(volptr), PrintInode(ino, fdP->fd_ih->ih_ino), descr, errno));
	return -1;
    }
    if (code) {
	ViceLog(0, ("CopyOnWrite corruption prevention: detected zero nlink for "
	            "volume %u inode %s (%s), forcing volume offline\n",
	            V_id(volptr), PrintInode(ino, fdP->fd_ih->ih_ino), descr));
	return -1;
    }
    return 0;
}

/* In our current implementation, each successive data store (new file
 * data version) creates a new inode. This function creates the new
 * inode, copies the old inode's contents to the new one, remove the old
 * inode (i.e. decrement inode count -- if it's currently used the delete
 * will be delayed), and modify some fields (i.e. vnode's
 * disk.inodeNumber and cloned)
 */
#define	COPYBUFFSIZE	8192
#define MAXFSIZE (~(afs_fsize_t) 0)
static int
CopyOnWrite(Vnode * targetptr, Volume * volptr, afs_foff_t off, afs_fsize_t len)
{
    Inode ino;
    Inode nearInode AFS_UNUSED;
    ssize_t rdlen;
    ssize_t wrlen;
    afs_fsize_t size;
    afs_foff_t done;
    size_t length;
    char *buff;
    int rc;			/* return code */
    IHandle_t *newH;		/* Use until finished copying, then cp to vnode. */
    FdHandle_t *targFdP;	/* Source Inode file handle */
    FdHandle_t *newFdP;		/* Dest Inode file handle */

    if (targetptr->disk.type == vDirectory)
	DFlush();		/* just in case? */

    VN_GET_LEN(size, targetptr);
    if (size > off)
	size -= off;
    else
	size = 0;
    if (size > len)
	size = len;

    buff = malloc(COPYBUFFSIZE);
    if (buff == NULL) {
	return EIO;
    }

    ino = VN_GET_INO(targetptr);
    if (!VALID_INO(ino)) {
	free(buff);
	VTakeOffline(volptr);
	ViceLog(0, ("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
		    afs_printable_VolumeId_lu(volptr->hashid)));
	return EIO;
    }
    targFdP = IH_OPEN(targetptr->handle);
    if (targFdP == NULL) {
	rc = errno;
	ViceLog(0,
		("CopyOnWrite failed: Failed to open target vnode %u in volume %" AFS_VOLID_FMT " (errno = %d)\n",
		 targetptr->vnodeNumber, afs_printable_VolumeId_lu(V_id(volptr)), rc));
	free(buff);
	VTakeOffline(volptr);
	return rc;
    }

    nearInode = VN_GET_INO(targetptr);
    ino =
	IH_CREATE(V_linkHandle(volptr), V_device(volptr),
		  VPartitionPath(V_partition(volptr)), nearInode,
		  V_id(volptr), targetptr->vnodeNumber,
		  targetptr->disk.uniquifier,
		  (int)targetptr->disk.dataVersion);
    if (!VALID_INO(ino)) {
	ViceLog(0,
		("CopyOnWrite failed: Partition %s that contains volume %" AFS_VOLID_FMT " may be out of free inodes(errno = %d)\n",
		 volptr->partition->name, afs_printable_VolumeId_lu(V_id(volptr)), errno));
	FDH_CLOSE(targFdP);
	free(buff);
	return ENOSPC;
    }
    IH_INIT(newH, V_device(volptr), V_id(volptr), ino);
    newFdP = IH_OPEN(newH);
    opr_Assert(newFdP != NULL);

    rc = CheckLink(volptr, targFdP, "source");
    if (!rc) {
	rc = CheckLink(volptr, newFdP, "dest");
    }
    if (rc) {
	FDH_REALLYCLOSE(newFdP);
	IH_RELEASE(newH);
	FDH_REALLYCLOSE(targFdP);
	IH_DEC(V_linkHandle(volptr), ino, V_parentId(volptr));
	free(buff);
	VTakeOffline(volptr);
	return VSALVAGE;
    }

    done = off;
    while (size > 0) {
	if (size > COPYBUFFSIZE) {	/* more than a buffer */
	    length = COPYBUFFSIZE;
	    size -= COPYBUFFSIZE;
	} else {
	    length = size;
	    size = 0;
	}
	rdlen = FDH_PREAD(targFdP, buff, length, done);
	if (rdlen == length) {
	    wrlen = FDH_PWRITE(newFdP, buff, length, done);
	    done += rdlen;
	} else
	    wrlen = 0;
	/*  Callers of this function are not prepared to recover
	 *  from error that put the filesystem in an inconsistent
	 *  state. Make sure that we force the volume off-line if
	 *  we some error other than ENOSPC - 4.29.99)
	 *
	 *  In case we are unable to write the required bytes, and the
	 *  error code indicates that the disk is full, we roll-back to
	 *  the initial state.
	 */
	if ((rdlen != length) || (wrlen != length)) {
	    if ((wrlen < 0) && (errno == ENOSPC)) {	/* disk full */
		ViceLog(0,
			("CopyOnWrite failed: Partition %s containing volume %" AFS_VOLID_FMT " is full\n",
			 volptr->partition->name, afs_printable_VolumeId_lu(V_id(volptr))));
		/* remove destination inode which was partially copied till now */
		FDH_REALLYCLOSE(newFdP);
		IH_RELEASE(newH);
		FDH_REALLYCLOSE(targFdP);
		rc = IH_DEC(V_linkHandle(volptr), ino, V_parentId(volptr));
		if (rc) {
		    ViceLog(0,
			    ("CopyOnWrite failed: error %u after i_dec on disk full, volume %" AFS_VOLID_FMT " in partition %s needs salvage\n",
			     rc, afs_printable_VolumeId_lu(V_id(volptr)), volptr->partition->name));
		    VTakeOffline(volptr);
		}
		free(buff);
		return ENOSPC;
	    } else {
		/* length, rdlen, and wrlen may or may not be 64-bits wide;
		 * since we never do any I/O anywhere near 2^32 bytes at a
		 * time, just case to an unsigned int for printing */

		ViceLog(0,
			("CopyOnWrite failed: volume %" AFS_VOLID_FMT " in partition %s  (tried reading %u, read %u, wrote %u, errno %u) volume needs salvage\n",
			 afs_printable_VolumeId_lu(V_id(volptr)), volptr->partition->name, (unsigned)length, (unsigned)rdlen,
			 (unsigned)wrlen, errno));
#if defined(AFS_DEMAND_ATTACH_FS)
		ViceLog(0, ("CopyOnWrite failed: requesting salvage\n"));
#else
		ViceLog(0, ("CopyOnWrite failed: taking volume offline\n"));
#endif
		/* Decrement this inode so salvager doesn't find it. */
		FDH_REALLYCLOSE(newFdP);
		IH_RELEASE(newH);
		FDH_REALLYCLOSE(targFdP);
		IH_DEC(V_linkHandle(volptr), ino, V_parentId(volptr));
		free(buff);
		VTakeOffline(volptr);
		return EIO;
	    }
	}
    }
    FDH_REALLYCLOSE(targFdP);
    rc = IH_DEC(V_linkHandle(volptr), VN_GET_INO(targetptr),
		V_parentId(volptr));
    opr_Assert(!rc);
    IH_RELEASE(targetptr->handle);

    rc = FDH_SYNC(newFdP);
    opr_Assert(rc == 0);
    FDH_CLOSE(newFdP);
    targetptr->handle = newH;
    VN_SET_INO(targetptr, ino);
    targetptr->disk.cloned = 0;
    /* Internal change to vnode, no user level change to volume - def 5445 */
    targetptr->changed_oldTime = 1;
    free(buff);
    return 0;			/* success */
}				/*CopyOnWrite */

/*
 * Common code to handle with removing the Name (file when it's called from
 * SAFS_RemoveFile() or an empty dir when called from SAFS_rmdir()) from a
 * given directory, parentptr.
 */
int DT1 = 0, DT0 = 0;
static afs_int32
DeleteTarget(Vnode * parentptr, Volume * volptr, Vnode ** targetptr,
	     DirHandle * dir, AFSFid * fileFid, char *Name, int ChkForDir)
{
    DirHandle childdir;		/* Handle for dir package I/O */
    Error errorCode = 0;
    int code;
    afs_ino_str_t stmp;

    /* watch for invalid names */
    if (!strcmp(Name, ".") || !strcmp(Name, ".."))
	return (EINVAL);

    if (CheckLength(volptr, parentptr, -1)) {
	VTakeOffline(volptr);
	return VSALVAGE;
    }

    if (parentptr->disk.cloned) {
	ViceLog(25, ("DeleteTarget : CopyOnWrite called\n"));
	if ((errorCode = CopyOnWrite(parentptr, volptr, 0, MAXFSIZE))) {
	    ViceLog(20,
		    ("DeleteTarget %s: CopyOnWrite failed %d\n", Name,
		     errorCode));
	    return errorCode;
	}
    }

    /* check that the file is in the directory */
    SetDirHandle(dir, parentptr);
    errorCode = afs_dir_Lookup(dir, Name, fileFid);
    if (errorCode && errorCode != ENOENT) {
        errorCode = EIO;
    }
    if (errorCode) {
	return errorCode;
    }
    fileFid->Volume = V_id(volptr);

    /* just-in-case check for something causing deadlock */
    if (fileFid->Vnode == parentptr->vnodeNumber)
	return (EINVAL);

    *targetptr = VGetVnode(&errorCode, volptr, fileFid->Vnode, WRITE_LOCK);
    if (errorCode) {
	return (errorCode);
    }
    if (ChkForDir == MustBeDIR) {
	if ((*targetptr)->disk.type != vDirectory)
	    return (ENOTDIR);
    } else if ((*targetptr)->disk.type == vDirectory)
	return (EISDIR);

    /*osi_Assert((*targetptr)->disk.uniquifier == fileFid->Unique); */
    /**
      * If the uniquifiers dont match then instead of asserting
      * take the volume offline and return VSALVAGE
      */
    if ((*targetptr)->disk.uniquifier != fileFid->Unique) {
	VTakeOffline(volptr);
	ViceLog(0,
		("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
		 afs_printable_VolumeId_lu(volptr->hashid)));
	errorCode = VSALVAGE;
	return errorCode;
    }

    if (ChkForDir == MustBeDIR) {
	SetDirHandle(&childdir, *targetptr);
	if (afs_dir_IsEmpty(&childdir) != 0)
	    return (EEXIST);
	DZap(&childdir);
	FidZap(&childdir);
	(*targetptr)->delete = 1;
    } else if ((--(*targetptr)->disk.linkCount) == 0)
	(*targetptr)->delete = 1;
    if ((*targetptr)->delete) {
	if (VN_GET_INO(*targetptr)) {
	    DT0++;
	    IH_REALLYCLOSE((*targetptr)->handle);
	    errorCode =
		IH_DEC(V_linkHandle(volptr), VN_GET_INO(*targetptr),
		       V_parentId(volptr));
	    IH_RELEASE((*targetptr)->handle);
	    if (errorCode == -1) {
		ViceLog(0,
			("DT: inode=%s, name=%s, errno=%d\n",
			 PrintInode(stmp, VN_GET_INO(*targetptr)), Name,
			 errno));
		if (errno != ENOENT)
		{
		    VTakeOffline(volptr);
		    ViceLog(0,
			    ("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
			     afs_printable_VolumeId_lu(volptr->hashid)));
		    return (EIO);
		}
		DT1++;
		errorCode = 0;
	    }
	}
	VN_SET_INO(*targetptr, (Inode) 0);
	{
	    afs_fsize_t adjLength;
	    VN_GET_LEN(adjLength, *targetptr);
	    VAdjustDiskUsage(&errorCode, volptr, -(int)nBlocks(adjLength), 0);
	}
    }

    (*targetptr)->changed_newTime = 1;	/* Status change of deleted file/dir */

    code = afs_dir_Delete(dir, Name);
    if (code) {
	ViceLog(0,
		("Error %d deleting %s\n", code,
		 (((*targetptr)->disk.type ==
		   Directory) ? "directory" : "file")));
	VTakeOffline(volptr);
	ViceLog(0,
		("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
		 afs_printable_VolumeId_lu(volptr->hashid)));
	if (!errorCode)
	    errorCode = code;
    }

    DFlush();
    return (errorCode);

}				/*DeleteTarget */


/*
 * This routine updates the parent directory's status block after the
 * specified operation (i.e. RemoveFile(), CreateFile(), Rename(),
 * SymLink(), Link(), MakeDir(), RemoveDir()) on one of its children has
 * been performed.
 */
static void
Update_ParentVnodeStatus(Vnode * parentptr, Volume * volptr, DirHandle * dir,
			 int author, int linkcount, char a_inSameNetwork)
{
    afs_fsize_t newlength;	/* Holds new directory length */
    afs_fsize_t parentLength;
    Error errorCode;
    Date currDate;		/*Current date */
    int writeIdx;		/*Write index to bump */
    int timeIdx;		/*Authorship time index to bump */
    time_t now;

    parentptr->disk.dataVersion++;
    newlength = (afs_fsize_t) afs_dir_Length(dir);
    /*
     * This is a called on both dir removals (i.e. remove, removedir, rename) but also in dir additions
     * (create, symlink, link, makedir) so we need to check if we have enough space
     * XXX But we still don't check the error since we're dealing with dirs here and really the increase
     * of a new entry would be too tiny to worry about failures (since we have all the existing cushion)
     */
    VN_GET_LEN(parentLength, parentptr);
    if (nBlocks(newlength) != nBlocks(parentLength)) {
	VAdjustDiskUsage(&errorCode, volptr,
			 (nBlocks(newlength) - nBlocks(parentLength)),
			 (nBlocks(newlength) - nBlocks(parentLength)));
    }
    VN_SET_LEN(parentptr, newlength);

    /*
     * Update directory write stats for this volume.  Note that the auth
     * counter is located immediately after its associated ``distance''
     * counter.
     */
    if (a_inSameNetwork)
	writeIdx = VOL_STATS_SAME_NET;
    else
	writeIdx = VOL_STATS_DIFF_NET;
    V_stat_writes(volptr, writeIdx)++;
    if (author != AnonymousID) {
	V_stat_writes(volptr, writeIdx + 1)++;
    }

    /*
     * Update the volume's authorship information in response to this
     * directory operation.  Get the current time, decide to which time
     * slot this operation belongs, and bump the appropriate slot.
     */
    now = time(NULL);
    currDate = (now - parentptr->disk.unixModifyTime);
    timeIdx =
	(currDate < VOL_STATS_TIME_CAP_0 ? VOL_STATS_TIME_IDX_0 : currDate <
	 VOL_STATS_TIME_CAP_1 ? VOL_STATS_TIME_IDX_1 : currDate <
	 VOL_STATS_TIME_CAP_2 ? VOL_STATS_TIME_IDX_2 : currDate <
	 VOL_STATS_TIME_CAP_3 ? VOL_STATS_TIME_IDX_3 : currDate <
	 VOL_STATS_TIME_CAP_4 ? VOL_STATS_TIME_IDX_4 : VOL_STATS_TIME_IDX_5);
    if (parentptr->disk.author == author) {
	V_stat_dirSameAuthor(volptr, timeIdx)++;
    } else {
	V_stat_dirDiffAuthor(volptr, timeIdx)++;
    }

    parentptr->disk.author = author;
    parentptr->disk.linkCount = linkcount;
    parentptr->disk.unixModifyTime = now;	/* This should be set from CLIENT!! */
    parentptr->disk.serverModifyTime = now;
    parentptr->changed_newTime = 1;	/* vnode changed, write it back. */
}


/*
 * Update the target file's (or dir's) status block after the specified
 * operation is complete. Note that some other fields maybe updated by
 * the individual module.
 * If remote is set, the volume is a RW replica and access checks can
 * be skipped.
 */

/* XXX INCOMPLETE - More attention is needed here! */
static void
Update_TargetVnodeStatus(Vnode * targetptr, afs_uint32 Caller,
			 struct client *client, AFSStoreStatus * InStatus,
			 Vnode * parentptr, Volume * volptr,
			 afs_fsize_t length, int remote)
{
    Date currDate;		/*Current date */
    int writeIdx;		/*Write index to bump */
    int timeIdx;		/*Authorship time index to bump */

    if (Caller & (TVS_CFILE | TVS_SLINK | TVS_MKDIR)) {	/* initialize new file */
	targetptr->disk.parent = parentptr->vnodeNumber;
	VN_SET_LEN(targetptr, length);
	/* targetptr->disk.group =      0;  save some cycles */
	targetptr->disk.modeBits = 0777;
	targetptr->disk.owner = client->z.ViceId;
	targetptr->disk.dataVersion = 0;	/* consistent with the client */
	targetptr->disk.linkCount = (Caller & TVS_MKDIR ? 2 : 1);
	/* the inode was created in Alloc_NewVnode() */
    }
    /*
     * Update file write stats for this volume.  Note that the auth
     * counter is located immediately after its associated ``distance''
     * counter.
     */
    if (client->z.InSameNetwork)
	writeIdx = VOL_STATS_SAME_NET;
    else
	writeIdx = VOL_STATS_DIFF_NET;
    V_stat_writes(volptr, writeIdx)++;
    if (client->z.ViceId != AnonymousID) {
	V_stat_writes(volptr, writeIdx + 1)++;
    }

    /*
     * We only count operations that DON'T involve creating new objects
     * (files, symlinks, directories) or simply setting status as
     * authorship-change operations.
     */
    if (!(Caller & (TVS_CFILE | TVS_SLINK | TVS_MKDIR | TVS_SSTATUS))) {
	/*
	 * Update the volume's authorship information in response to this
	 * file operation.  Get the current time, decide to which time
	 * slot this operation belongs, and bump the appropriate slot.
	 */
	currDate = (time(NULL) - targetptr->disk.unixModifyTime);
	timeIdx =
	    (currDate <
	     VOL_STATS_TIME_CAP_0 ? VOL_STATS_TIME_IDX_0 : currDate <
	     VOL_STATS_TIME_CAP_1 ? VOL_STATS_TIME_IDX_1 : currDate <
	     VOL_STATS_TIME_CAP_2 ? VOL_STATS_TIME_IDX_2 : currDate <
	     VOL_STATS_TIME_CAP_3 ? VOL_STATS_TIME_IDX_3 : currDate <
	     VOL_STATS_TIME_CAP_4 ? VOL_STATS_TIME_IDX_4 :
	     VOL_STATS_TIME_IDX_5);
	if (targetptr->disk.author == client->z.ViceId) {
	    V_stat_fileSameAuthor(volptr, timeIdx)++;
	} else {
	    V_stat_fileDiffAuthor(volptr, timeIdx)++;
	}
    }

    if (!(Caller & TVS_SSTATUS))
	targetptr->disk.author = client->z.ViceId;
    if (Caller & TVS_SDATA) {
	targetptr->disk.dataVersion++;
	if (!remote && VanillaUser(client)) {
	    /* turn off suid */
	    targetptr->disk.modeBits = targetptr->disk.modeBits & ~04000;
#ifdef CREATE_SGUID_ADMIN_ONLY
	    /* turn off sgid */
	    targetptr->disk.modeBits = targetptr->disk.modeBits & ~02000;
#endif
	}
    }
    if (Caller & TVS_SSTATUS) {	/* update time on non-status change */
	/* store status, must explicitly request to change the date */
	if (InStatus->Mask & AFS_SETMODTIME)
	    targetptr->disk.unixModifyTime = InStatus->ClientModTime;
    } else {			/* other: date always changes, but perhaps to what is specified by caller */
	targetptr->disk.unixModifyTime =
	    (InStatus->Mask & AFS_SETMODTIME ? InStatus->
	     ClientModTime : time(NULL));
    }
    if (InStatus->Mask & AFS_SETOWNER) {
	/* admin is allowed to do chmod, chown as well as chown, chmod. */
	if (!remote && VanillaUser(client)) {
	    /* turn off suid */
	    targetptr->disk.modeBits = targetptr->disk.modeBits & ~04000;
#ifdef CREATE_SGUID_ADMIN_ONLY
	    /* turn off sgid */
	    targetptr->disk.modeBits = targetptr->disk.modeBits & ~02000;
#endif
	}
	targetptr->disk.owner = InStatus->Owner;
	if (VolumeRootVnode(targetptr)) {
	    Error errorCode = 0;	/* what should be done with this? */

	    V_owner(targetptr->volumePtr) = InStatus->Owner;
	    VUpdateVolume(&errorCode, targetptr->volumePtr);
	}
    }
    if (InStatus->Mask & AFS_SETMODE) {
	int modebits = InStatus->UnixModeBits;
#ifdef CREATE_SGUID_ADMIN_ONLY
	if (!remote && VanillaUser(client))
	    modebits = modebits & 0777;
#endif
	if (!remote && VanillaUser(client)) {
	    targetptr->disk.modeBits = modebits;
	} else {
	    targetptr->disk.modeBits = modebits;
	    switch (Caller) {
	    case TVS_SDATA:
		osi_audit(PrivSetID, 0, AUD_ID, client->z.ViceId, AUD_INT,
			  CHK_STOREDATA, AUD_END);
		break;
	    case TVS_CFILE:
	    case TVS_SSTATUS:
		osi_audit(PrivSetID, 0, AUD_ID, client->z.ViceId, AUD_INT,
			  CHK_STORESTATUS, AUD_END);
		break;
	    default:
		break;
	    }
	}
    }
    targetptr->disk.serverModifyTime = time(NULL);
    if (InStatus->Mask & AFS_SETGROUP)
	targetptr->disk.group = InStatus->Group;
    /* vnode changed : to be written back by VPutVnode */
    targetptr->changed_newTime = 1;

}				/*Update_TargetVnodeStatus */


/*
 * Fills the CallBack structure with the expiration time and type of callback
 * structure. Warning: this function is currently incomplete.
 */
static void
SetCallBackStruct(afs_uint32 CallBackTime, struct AFSCallBack *CallBack)
{
    /* CallBackTime could not be 0 */
    if (CallBackTime == 0) {
	ViceLog(0, ("WARNING: CallBackTime == 0!\n"));
	CallBack->ExpirationTime = 0;
    } else
	CallBack->ExpirationTime = CallBackTime - time(NULL);
    CallBack->CallBackVersion = CALLBACK_VERSION;
    CallBack->CallBackType = CB_SHARED;	/* The default for now */

}				/*SetCallBackStruct */


/*
 * Adjusts (Subtract) "length" number of blocks from the volume's disk
 * allocation; if some error occured (exceeded volume quota or partition
 * was full, or whatever), it frees the space back and returns the code.
 * We usually pre-adjust the volume space to make sure that there's
 * enough space before consuming some.
 */
static afs_int32
AdjustDiskUsage(Volume * volptr, afs_sfsize_t length,
		afs_sfsize_t checkLength)
{
    Error rc;
    Error nc;

    VAdjustDiskUsage(&rc, volptr, length, checkLength);
    if (rc) {
	VAdjustDiskUsage(&nc, volptr, -length, 0);
	if (rc == VOVERQUOTA) {
	    ViceLog(2,
		    ("Volume %" AFS_VOLID_FMT " (%s) is full\n",
		     afs_printable_VolumeId_lu(V_id(volptr)),
		     V_name(volptr)));
	    return (rc);
	}
	if (rc == VDISKFULL) {
	    ViceLog(0,
		    ("Partition %s that contains volume %" AFS_VOLID_FMT " is full\n",
		     volptr->partition->name,
		     afs_printable_VolumeId_lu(V_id(volptr))));
	    return (rc);
	}
	ViceLog(0, ("Got error return %d from VAdjustDiskUsage\n", rc));
	return (rc);
    }
    return (0);

}				/*AdjustDiskUsage */

/*
 * Common code that handles the creation of a new file (SAFS_CreateFile and
 * SAFS_Symlink) or a new dir (SAFS_MakeDir)
 */
static afs_int32
Alloc_NewVnode(Vnode * parentptr, DirHandle * dir, Volume * volptr,
	       Vnode ** targetptr, char *Name, struct AFSFid *OutFid,
	       int FileType, afs_sfsize_t BlocksPreallocatedForVnode)
{
    Error errorCode = 0;		/* Error code returned back */
    Error temp;
    Inode inode = 0;
    Inode nearInode AFS_UNUSED;	 /* hint for inode allocation in solaris */
    afs_ino_str_t stmp;

    if ((errorCode =
	 AdjustDiskUsage(volptr, BlocksPreallocatedForVnode,
			 BlocksPreallocatedForVnode))) {
	ViceLog(25,
		("Insufficient space to allocate %lld blocks\n",
		 (afs_intmax_t) BlocksPreallocatedForVnode));
	return (errorCode);
    }

    if (CheckLength(volptr, parentptr, -1)) {
	VAdjustDiskUsage(&temp, volptr, -BlocksPreallocatedForVnode, 0);
	VTakeOffline(volptr);
	return VSALVAGE;
    }

    *targetptr = VAllocVnode(&errorCode, volptr, FileType, 0, 0);
    if (errorCode != 0) {
	VAdjustDiskUsage(&temp, volptr, -BlocksPreallocatedForVnode, 0);
	return (errorCode);
    }
    OutFid->Volume = V_id(volptr);
    OutFid->Vnode = (*targetptr)->vnodeNumber;
    OutFid->Unique = (*targetptr)->disk.uniquifier;

    nearInode = VN_GET_INO(parentptr);	/* parent is also in same vol */

    /* create the inode now itself */
    inode =
	IH_CREATE(V_linkHandle(volptr), V_device(volptr),
		  VPartitionPath(V_partition(volptr)), nearInode,
		  V_id(volptr), (*targetptr)->vnodeNumber,
		  (*targetptr)->disk.uniquifier, 1);

    /* error in creating inode */
    if (!VALID_INO(inode)) {
	ViceLog(0,
		("Volume : %" AFS_VOLID_FMT " vnode = %u Failed to create inode: errno = %d\n",
		 afs_printable_VolumeId_lu(V_id((*targetptr)->volumePtr)),
		 (*targetptr)->vnodeNumber, errno));
	VAdjustDiskUsage(&temp, volptr, -BlocksPreallocatedForVnode, 0);
	(*targetptr)->delete = 1;	/* delete vnode */
	return ENOSPC;
    }
    VN_SET_INO(*targetptr, inode);
    IH_INIT(((*targetptr)->handle), V_device(volptr), V_id(volptr), inode);

    /* copy group from parent dir */
    (*targetptr)->disk.group = parentptr->disk.group;

    if (parentptr->disk.cloned) {
	ViceLog(25, ("Alloc_NewVnode : CopyOnWrite called\n"));
	if ((errorCode = CopyOnWrite(parentptr, volptr, 0, MAXFSIZE))) {	/* disk full */
	    ViceLog(25, ("Alloc_NewVnode : CopyOnWrite failed\n"));
	    /* delete the vnode previously allocated */
	    (*targetptr)->delete = 1;
	    VAdjustDiskUsage(&temp, volptr, -BlocksPreallocatedForVnode, 0);
	    IH_REALLYCLOSE((*targetptr)->handle);
	    if (IH_DEC(V_linkHandle(volptr), inode, V_parentId(volptr)))
		ViceLog(0,
			("Alloc_NewVnode: partition %s idec %s failed\n",
			 volptr->partition->name, PrintInode(stmp, inode)));
	    IH_RELEASE((*targetptr)->handle);

	    return errorCode;
	}
    }

    /* add the name to the directory */
    SetDirHandle(dir, parentptr);
    if ((errorCode = afs_dir_Create(dir, Name, OutFid))) {
	(*targetptr)->delete = 1;
	VAdjustDiskUsage(&temp, volptr, -BlocksPreallocatedForVnode, 0);
	IH_REALLYCLOSE((*targetptr)->handle);
	if (IH_DEC(V_linkHandle(volptr), inode, V_parentId(volptr)))
	    ViceLog(0,
		    ("Alloc_NewVnode: partition %s idec %s failed\n",
		     volptr->partition->name, PrintInode(stmp, inode)));
	IH_RELEASE((*targetptr)->handle);
	return (errorCode);
    }
    DFlush();
    return (0);

}				/*Alloc_NewVnode */


/*
 * Handle all the lock-related code (SAFS_SetLock, SAFS_ExtendLock and
 * SAFS_ReleaseLock)
 */
static afs_int32
HandleLocking(Vnode * targetptr, struct client *client, afs_int32 rights, ViceLockType LockingType)
{
    int Time;			/* Used for time */
    int writeVnode = targetptr->changed_oldTime;	/* save original status */

    targetptr->changed_oldTime = 1;	/* locking doesn't affect any time stamp */
    Time = time(NULL);
    switch (LockingType) {
    case LockRead:
    case LockWrite:
	if (Time > targetptr->disk.lock.lockTime)
	    targetptr->disk.lock.lockTime = targetptr->disk.lock.lockCount =
		0;
	Time += AFS_LOCKWAIT;
	if (LockingType == LockRead) {
	    if ( !(rights & PRSFS_LOCK) &&
                 !(rights & PRSFS_WRITE) &&
                 !(OWNSp(client, targetptr) && (rights & PRSFS_INSERT)) )
                    return(EACCES);

	    if (targetptr->disk.lock.lockCount >= 0) {
		++(targetptr->disk.lock.lockCount);
		targetptr->disk.lock.lockTime = Time;
	    } else
		return (EAGAIN);
	} else if (LockingType == LockWrite) {
	    if ( !(rights & PRSFS_WRITE) &&
		 !(OWNSp(client, targetptr) && (rights & PRSFS_INSERT)) )
		return(EACCES);

	    if (targetptr->disk.lock.lockCount == 0) {
		targetptr->disk.lock.lockCount = -1;
		targetptr->disk.lock.lockTime = Time;
	    } else
		return (EAGAIN);
	}
	break;
    case LockExtend:
	Time += AFS_LOCKWAIT;
	if (targetptr->disk.lock.lockCount != 0)
	    targetptr->disk.lock.lockTime = Time;
	else
	    return (EINVAL);
	break;
    case LockRelease:
	if ((--targetptr->disk.lock.lockCount) <= 0)
	    targetptr->disk.lock.lockCount = targetptr->disk.lock.lockTime =
		0;
	break;
    default:
	targetptr->changed_oldTime = writeVnode;	/* restore old status */
	ViceLog(0, ("Illegal Locking type %d\n", LockingType));
    }
    return (0);
}				/*HandleLocking */

/* Checks if caller has the proper AFS and Unix (WRITE) access permission to the target directory; Prfs_Mode refers to the AFS Mode operation while rights contains the caller's access permissions to the directory. */

static afs_int32
CheckWriteMode(Vnode * targetptr, afs_int32 rights, int Prfs_Mode,
	       struct client *client)
{
    if (!IsWriteAllowed(client))
	return (VREADONLY);
    if (!(rights & Prfs_Mode))
	return (EACCES);
    if ((targetptr->disk.type != vDirectory)
	&& (!(targetptr->disk.modeBits & OWNERWRITE)))
	return (EACCES);
    return (0);
}

/*
 * If some flags (i.e. min or max quota) are set, the volume's in disk
 * label is updated; Name, OfflineMsg, and Motd are also reflected in the
 * update, if applicable.
 */
static afs_int32
RXUpdate_VolumeStatus(Volume * volptr, AFSStoreVolumeStatus * StoreVolStatus,
		      char *Name, char *OfflineMsg, char *Motd)
{
    Error errorCode = 0;

    if (StoreVolStatus->Mask & AFS_SETMINQUOTA)
	V_minquota(volptr) = StoreVolStatus->MinQuota;
    if (StoreVolStatus->Mask & AFS_SETMAXQUOTA)
	V_maxquota(volptr) = StoreVolStatus->MaxQuota;
    if (strlen(OfflineMsg) > 0) {
	strcpy(V_offlineMessage(volptr), OfflineMsg);
    }
    if (strlen(Name) > 0) {
	strcpy(V_name(volptr), Name);
    }
    /*
     * We don't overwrite the motd field, since it's now being used
     * for stats
     */
    VUpdateVolume(&errorCode, volptr);
    return (errorCode);

}				/*RXUpdate_VolumeStatus */


static afs_int32
RXGetVolumeStatus(AFSFetchVolumeStatus * status, char **name, char **offMsg,
		  char **motd, Volume * volptr)
{

    status->Vid = V_id(volptr);
    status->ParentId = V_parentId(volptr);
    status->Online = V_inUse(volptr);
    status->InService = V_inService(volptr);
    status->Blessed = V_blessed(volptr);
    status->NeedsSalvage = V_needsSalvaged(volptr);
    if (VolumeWriteable(volptr))
	status->Type = ReadWrite;
    else
	status->Type = ReadOnly;
    status->MinQuota = V_minquota(volptr);
    status->MaxQuota = V_maxquota(volptr);
    status->BlocksInUse = V_diskused(volptr);
    status->PartBlocksAvail = RoundInt64ToInt31(volptr->partition->free);
    status->PartMaxBlocks = RoundInt64ToInt31(volptr->partition->totalUsable);

    /* now allocate and copy these things; they're freed by the RXGEN stub */
    *name = strdup(V_name(volptr));
    if (!*name) {
	ViceLogThenPanic(0, ("Failed malloc in RXGetVolumeStatus\n"));
    }
    *offMsg = strdup(V_offlineMessage(volptr));
    if (!*offMsg) {
	ViceLogThenPanic(0, ("Failed malloc in RXGetVolumeStatus\n"));
    }
    *motd = malloc(1);
    if (!*motd) {
	ViceLogThenPanic(0, ("Failed malloc in RXGetVolumeStatus\n"));
    }
    strcpy(*motd, nullString);
    return 0;
}				/*RXGetVolumeStatus */


static afs_int32
FileNameOK(char *aname)
{
    afs_int32 i, tc;
    i = strlen(aname);
    if (i >= 4) {
	/* watch for @sys on the right */
	if (strcmp(aname + i - 4, "@sys") == 0)
	    return 0;
    }
    while ((tc = *aname++)) {
	if (tc == '/')
	    return 0;		/* very bad character to encounter */
    }
    return 1;			/* file name is ok */

}				/*FileNameOK */


/*
 * This variant of symlink is expressly to support the AFS/DFS translator
 * and is not supported by the AFS fileserver. We just return EINVAL.
 * The cache manager should not generate this call to an AFS cache manager.
 */
afs_int32
SRXAFS_DFSSymlink(struct rx_call *acall, struct AFSFid *DirFid, char *Name,
		  char *LinkContents, struct AFSStoreStatus *InStatus,
		  struct AFSFid *OutFid, struct AFSFetchStatus *OutFidStatus,
		  struct AFSFetchStatus *OutDirStatus,
		  struct AFSCallBack *CallBack, struct AFSVolSync *Sync)
{
    return EINVAL;
}

afs_int32
SRXAFS_FsCmd(struct rx_call * acall, struct AFSFid * Fid,
		    struct FsCmdInputs * Inputs,
		    struct FsCmdOutputs * Outputs)
{
    afs_int32 code = 0;

    switch (Inputs->command) {
    default:
        code = EINVAL;
    }
    ViceLog(1,("FsCmd: cmd = %d, code=%d\n",
			Inputs->command, Outputs->code));
    return code;
}

#ifndef HAVE_PIOV
static struct afs_buffer {
    struct afs_buffer *next;
} *freeBufferList = 0;
static int afs_buffersAlloced = 0;

static int
FreeSendBuffer(struct afs_buffer *adata)
{
    FS_LOCK;
    afs_buffersAlloced--;
    adata->next = freeBufferList;
    freeBufferList = adata;
    FS_UNLOCK;
    return 0;

}				/*FreeSendBuffer */

/* allocate space for sender */
static char *
AllocSendBuffer(void)
{
    struct afs_buffer *tp;

    FS_LOCK;
    afs_buffersAlloced++;
    if (!freeBufferList) {
	char *tmp;
	FS_UNLOCK;
	tmp = malloc(sendBufSize);
	if (!tmp) {
	    ViceLogThenPanic(0, ("Failed malloc in AllocSendBuffer\n"));
	}
	return tmp;
    }
    tp = freeBufferList;
    freeBufferList = tp->next;
    FS_UNLOCK;
    return (char *)tp;

}				/*AllocSendBuffer */
#endif /* HAVE_PIOV */

/*
 * This routine returns the status info associated with the targetptr vnode
 * in the AFSFetchStatus structure.  Some of the newer fields, such as
 * SegSize and Group are not yet implemented
 */
static
    void
GetStatus(Vnode * targetptr, AFSFetchStatus * status, afs_int32 rights,
	  afs_int32 anyrights, Vnode * parentptr)
{
    int Time = time(NULL);

    /* initialize return status from a vnode  */
    status->InterfaceVersion = 1;
    status->SyncCounter = status->dataVersionHigh = status->lockCount =
	status->errorCode = 0;
    status->ResidencyMask = 1;	/* means for MR-AFS: file in /vicepr-partition */
    if (targetptr->disk.type == vFile)
	status->FileType = File;
    else if (targetptr->disk.type == vDirectory)
	status->FileType = Directory;
    else if (targetptr->disk.type == vSymlink)
	status->FileType = SymbolicLink;
    else
	status->FileType = Invalid;	/*invalid type field */
    status->LinkCount = targetptr->disk.linkCount;
    {
	afs_fsize_t targetLen;
	VN_GET_LEN(targetLen, targetptr);
	SplitOffsetOrSize(targetLen, status->Length_hi, status->Length);
    }
    status->DataVersion = targetptr->disk.dataVersion;
    status->Author = targetptr->disk.author;
    status->Owner = targetptr->disk.owner;
    status->CallerAccess = rights;
    status->AnonymousAccess = anyrights;
    status->UnixModeBits = targetptr->disk.modeBits;
    status->ClientModTime = targetptr->disk.unixModifyTime;	/* This might need rework */
    status->ParentVnode =
	(status->FileType ==
	 Directory ? targetptr->vnodeNumber : parentptr->vnodeNumber);
    status->ParentUnique =
	(status->FileType ==
	 Directory ? targetptr->disk.uniquifier : parentptr->disk.uniquifier);
    status->ServerModTime = targetptr->disk.serverModifyTime;
    status->Group = targetptr->disk.group;
    status->lockCount = Time > targetptr->disk.lock.lockTime ? 0 : targetptr->disk.lock.lockCount;
    status->errorCode = 0;

}				/*GetStatus */

static afs_int32
common_FetchData64(struct rx_call *acall, struct AFSFid *Fid,
		   afs_sfsize_t Pos, afs_sfsize_t Len,
		   struct AFSFetchStatus *OutStatus,
		   struct AFSCallBack *CallBack, struct AFSVolSync *Sync,
		   int type)
{
    Vnode *targetptr = 0;	/* pointer to vnode to fetch */
    Vnode *parentwhentargetnotdir = 0;	/* parent vnode if vptr is a file */
    Vnode tparentwhentargetnotdir;	/* parent vnode for GetStatus */
    Error errorCode = 0;		/* return code to caller */
    Error fileCode = 0;		/* return code from vol package */
    Volume *volptr = 0;		/* pointer to the volume */
    struct client *client = 0;	/* pointer to the client data */
    struct rx_connection *tcon;	/* the connection we're part of */
    struct host *thost;
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct VCallByVol tcbv, *cbv = NULL;
    static int remainder = 0;	/* shared access protected by FS_LOCK */
    struct fsstats fsstats;
    afs_sfsize_t bytesToXfer;  /* # bytes to xfer */
    afs_sfsize_t bytesXferred; /* # bytes actually xferred */
    int readIdx;		/* Index of read stats array to bump */

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_FETCHDATA);

    ViceLog(1,
	    ("SRXAFS_FetchData, Fid = %u.%u.%u\n", Fid->Volume, Fid->Vnode,
	     Fid->Unique));
    FS_LOCK;
    AFSCallStats.FetchData++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if ((errorCode = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_FetchData;

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(5,
	    ("SRXAFS_FetchData, Fid = %u.%u.%u, Host %s:%d, Id %d\n",
	     Fid->Volume, Fid->Vnode, Fid->Unique, inet_ntoa(logHostAddr),
	     ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));

    /* Avoid signed integer complications later. */
    if (Pos < 0 || Len < 0 || Len >= MAX_AFS_INT64 - Pos) {
	errorCode = EFBIG;
	goto Bad_FetchData;
    }

    queue_NodeInit(&tcbv);
    tcbv.call = acall;
    cbv = &tcbv;

    /*
     * Get volume/vnode for the fetched file; caller's access rights to
     * it are also returned
     */
    if ((errorCode =
	 GetVolumePackageWithCall(acall, cbv, Fid, &volptr, &targetptr, DONTCHECK,
			  &parentwhentargetnotdir, &client, READ_LOCK,
			  &rights, &anyrights, 0)))
	goto Bad_FetchData;

    SetVolumeSync(Sync, volptr);

    /*
     * Remember that another read operation was performed.
     */
    FS_LOCK;
    if (client->z.InSameNetwork)
	readIdx = VOL_STATS_SAME_NET;
    else
	readIdx = VOL_STATS_DIFF_NET;
    V_stat_reads(volptr, readIdx)++;
    if (client->z.ViceId != AnonymousID) {
	V_stat_reads(volptr, readIdx + 1)++;
    }
    FS_UNLOCK;
    /* Check whether the caller has permission access to fetch the data */
    if ((errorCode =
	 Check_PermissionRights(targetptr, client, rights, CHK_FETCHDATA, 0)))
	goto Bad_FetchData;

    /*
     * Drop the read lock on the parent directory after saving the parent
     * vnode information we need to pass to GetStatus
     */
    if (parentwhentargetnotdir != NULL) {
	tparentwhentargetnotdir = *parentwhentargetnotdir;
	VPutVnode(&fileCode, parentwhentargetnotdir);
	assert_vnode_success_or_salvaging(fileCode);
	parentwhentargetnotdir = NULL;
    }

    fsstats_StartXfer(&fsstats, FS_STATS_XFERIDX_FETCHDATA);

    /* actually do the data transfer */
    errorCode =
	FetchData_RXStyle(volptr, targetptr, acall, Pos, Len, type,
			  &bytesToXfer, &bytesXferred);

    fsstats_FinishXfer(&fsstats, errorCode, bytesToXfer, bytesXferred,
		       &remainder);

    if (errorCode)
	goto Bad_FetchData;

    /* write back  the OutStatus from the target vnode  */
    GetStatus(targetptr, OutStatus, rights, anyrights,
	      &tparentwhentargetnotdir);

    /* if a r/w volume, promise a callback to the caller */
    if (VolumeWriteable(volptr))
	SetCallBackStruct(AddCallBack(client->z.host, Fid), CallBack);
    else {
	struct AFSFid myFid;
	memset(&myFid, 0, sizeof(struct AFSFid));
	myFid.Volume = Fid->Volume;
	SetCallBackStruct(AddVolCallBack(client->z.host, &myFid), CallBack);
    }

  Bad_FetchData:
    /* Update and store volume/vnode and parent vnodes back */
    (void)PutVolumePackageWithCall(acall, parentwhentargetnotdir, targetptr,
                                   (Vnode *) 0, volptr, &client, cbv);
    ViceLog(2, ("SRXAFS_FetchData returns %d\n", errorCode));
    errorCode = CallPostamble(tcon, errorCode, thost);

    fsstats_FinishOp(&fsstats, errorCode);

    osi_auditU(acall, FetchDataEvent, errorCode,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid, AUD_END);
    return (errorCode);

}				/*SRXAFS_FetchData */

afs_int32
SRXAFS_FetchData(struct rx_call * acall, struct AFSFid * Fid, afs_int32 Pos,
		 afs_int32 Len, struct AFSFetchStatus * OutStatus,
		 struct AFSCallBack * CallBack, struct AFSVolSync * Sync)
{
    return common_FetchData64(acall, Fid, Pos, Len, OutStatus, CallBack,
                              Sync, 0);
}

afs_int32
SRXAFS_FetchData64(struct rx_call * acall, struct AFSFid * Fid, afs_int64 Pos,
		   afs_int64 Len, struct AFSFetchStatus * OutStatus,
		   struct AFSCallBack * CallBack, struct AFSVolSync * Sync)
{
    int code;
    afs_sfsize_t tPos, tLen;

    tPos = (afs_sfsize_t) Pos;
    tLen = (afs_sfsize_t) Len;

    code =
	common_FetchData64(acall, Fid, tPos, tLen, OutStatus, CallBack, Sync,
			   1);
    return code;
}

afs_int32
SRXAFS_FetchACL(struct rx_call * acall, struct AFSFid * Fid,
		struct AFSOpaque * AccessList,
		struct AFSFetchStatus * OutStatus, struct AFSVolSync * Sync)
{
    Vnode *targetptr = 0;	/* pointer to vnode to fetch */
    Vnode *parentwhentargetnotdir = 0;	/* parent vnode if targetptr is a file */
    Error errorCode = 0;		/* return error code to caller */
    Volume *volptr = 0;		/* pointer to the volume */
    struct client *client = 0;	/* pointer to the client data */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct rx_connection *tcon = rx_ConnectionOf(acall);
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_FETCHACL);

    ViceLog(1,
	    ("SAFS_FetchACL, Fid = %u.%u.%u\n", Fid->Volume, Fid->Vnode,
	     Fid->Unique));
    FS_LOCK;
    AFSCallStats.FetchACL++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if ((errorCode = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_FetchACL;

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(5,
	    ("SAFS_FetchACL, Fid = %u.%u.%u, Host %s:%d, Id %d\n", Fid->Volume,
	     Fid->Vnode, Fid->Unique, inet_ntoa(logHostAddr),
	     ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));

    AccessList->AFSOpaque_len = 0;
    AccessList->AFSOpaque_val = malloc(AFSOPAQUEMAX);
    if (!AccessList->AFSOpaque_val) {
	ViceLogThenPanic(0, ("Failed malloc in SRXAFS_FetchACL\n"));
    }

    /*
     * Get volume/vnode for the fetched file; caller's access rights to it
     * are also returned
     */
    if ((errorCode =
	 GetVolumePackage(acall, Fid, &volptr, &targetptr, DONTCHECK,
			  &parentwhentargetnotdir, &client, READ_LOCK,
			  &rights, &anyrights)))
	goto Bad_FetchACL;

    SetVolumeSync(Sync, volptr);

    /* Check whether we have permission to fetch the ACL */
    if ((errorCode =
	 Check_PermissionRights(targetptr, client, rights, CHK_FETCHACL, 0)))
	goto Bad_FetchACL;

    /* Get the Access List from the dir's vnode */
    if ((errorCode =
	 RXFetch_AccessList(targetptr, parentwhentargetnotdir, AccessList)))
	goto Bad_FetchACL;

    /* Get OutStatus back From the target Vnode  */
    GetStatus(targetptr, OutStatus, rights, anyrights,
	      parentwhentargetnotdir);

  Bad_FetchACL:
    /* Update and store volume/vnode and parent vnodes back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);
    ViceLog(2,
	    ("SAFS_FetchACL returns %d (ACL=%s)\n", errorCode,
	     AccessList->AFSOpaque_val));
    errorCode = CallPostamble(tcon, errorCode, thost);

    fsstats_FinishOp(&fsstats, errorCode);

    osi_auditU(acall, FetchACLEvent, errorCode,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid,
	       AUD_ACL, AccessList->AFSOpaque_val, AUD_END);
    return errorCode;
}				/*SRXAFS_FetchACL */


/*
 * This routine is called exclusively by SRXAFS_FetchStatus(), and should be
 * merged into it when possible.
 */
static afs_int32
SAFSS_FetchStatus(struct rx_call *acall, struct AFSFid *Fid,
		  struct AFSFetchStatus *OutStatus,
		  struct AFSCallBack *CallBack, struct AFSVolSync *Sync)
{
    Vnode *targetptr = 0;	/* pointer to vnode to fetch */
    Vnode *parentwhentargetnotdir = 0;	/* parent vnode if targetptr is a file */
    Error errorCode = 0;		/* return code to caller */
    Volume *volptr = 0;		/* pointer to the volume */
    struct client *client = 0;	/* pointer to the client data */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_FetchStatus,  Fid = %u.%u.%u, Host %s:%d, Id %d\n",
	     Fid->Volume, Fid->Vnode, Fid->Unique, inet_ntoa(logHostAddr),
	     ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.FetchStatus++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    /*
     * Get volume/vnode for the fetched file; caller's rights to it are
     * also returned
     */
    if ((errorCode =
	 GetVolumePackage(acall, Fid, &volptr, &targetptr, DONTCHECK,
			  &parentwhentargetnotdir, &client, READ_LOCK,
			  &rights, &anyrights)))
	goto Bad_FetchStatus;

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Are we allowed to fetch Fid's status? */
    if (targetptr->disk.type != vDirectory) {
	if ((errorCode =
	     Check_PermissionRights(targetptr, client, rights,
				    CHK_FETCHSTATUS, 0))) {
	    if (rx_GetCallAbortCode(acall) == errorCode)
		rx_SetCallAbortCode(acall, 0);
	    goto Bad_FetchStatus;
	}
    }

    /* set OutStatus From the Fid  */
    GetStatus(targetptr, OutStatus, rights, anyrights,
	      parentwhentargetnotdir);

    /* If a r/w volume, also set the CallBack state */
    if (VolumeWriteable(volptr))
	SetCallBackStruct(AddCallBack(client->z.host, Fid), CallBack);
    else {
	struct AFSFid myFid;
	memset(&myFid, 0, sizeof(struct AFSFid));
	myFid.Volume = Fid->Volume;
	SetCallBackStruct(AddVolCallBack(client->z.host, &myFid), CallBack);
    }

  Bad_FetchStatus:
    /* Update and store volume/vnode and parent vnodes back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);
    ViceLog(2, ("SAFS_FetchStatus returns %d\n", errorCode));
    return errorCode;

}				/*SAFSS_FetchStatus */


afs_int32
SRXAFS_BulkStatus(struct rx_call * acall, struct AFSCBFids * Fids,
		  struct AFSBulkStats * OutStats, struct AFSCBs * CallBacks,
		  struct AFSVolSync * Sync)
{
    int i;
    afs_int32 nfiles;
    Vnode *targetptr = 0;	/* pointer to vnode to fetch */
    Vnode *parentwhentargetnotdir = 0;	/* parent vnode if targetptr is a file */
    Error errorCode = 0;		/* return code to caller */
    Volume *volptr = 0;		/* pointer to the volume */
    struct client *client = 0;	/* pointer to the client data */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct AFSFid *tfid;	/* file id we're dealing with now */
    struct rx_connection *tcon = rx_ConnectionOf(acall);
    struct host *thost;
    struct client *t_client = NULL;     /* tmp pointer to the client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_BULKSTATUS);

    ViceLog(1, ("SAFS_BulkStatus\n"));
    FS_LOCK;
    AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    nfiles = Fids->AFSCBFids_len;	/* # of files in here */
    if (nfiles <= 0) {		/* Sanity check */
	errorCode = EINVAL;
	goto Audit_and_Return;
    }

    /* allocate space for return output parameters */
    OutStats->AFSBulkStats_val = malloc(nfiles * sizeof(struct AFSFetchStatus));
    if (!OutStats->AFSBulkStats_val) {
	ViceLogThenPanic(0, ("Failed malloc in SRXAFS_BulkStatus\n"));
    }
    OutStats->AFSBulkStats_len = nfiles;
    CallBacks->AFSCBs_val = malloc(nfiles * sizeof(struct AFSCallBack));
    if (!CallBacks->AFSCBs_val) {
	ViceLogThenPanic(0, ("Failed malloc in SRXAFS_BulkStatus\n"));
    }
    CallBacks->AFSCBs_len = nfiles;

    tfid = Fids->AFSCBFids_val;

    if ((errorCode = CallPreamble(acall, ACTIVECALL, tfid, &tcon, &thost)))
	goto Bad_BulkStatus;

    for (i = 0; i < nfiles; i++, tfid++) {
	/*
	 * Get volume/vnode for the fetched file; caller's rights to it
	 * are also returned
	 */
	if ((errorCode =
	     GetVolumePackage(acall, tfid, &volptr, &targetptr, DONTCHECK,
			      &parentwhentargetnotdir, &client, READ_LOCK,
			      &rights, &anyrights)))
	    goto Bad_BulkStatus;

	/* set volume synchronization information, but only once per call */
	if (i == 0)
	    SetVolumeSync(Sync, volptr);

	/* Are we allowed to fetch Fid's status? */
	if (targetptr->disk.type != vDirectory) {
	    if ((errorCode =
		 Check_PermissionRights(targetptr, client, rights,
					CHK_FETCHSTATUS, 0))) {
		if (rx_GetCallAbortCode(acall) == errorCode)
		    rx_SetCallAbortCode(acall, 0);
		goto Bad_BulkStatus;
	    }
	}

	/* set OutStatus From the Fid  */
	GetStatus(targetptr, &OutStats->AFSBulkStats_val[i], rights,
		  anyrights, parentwhentargetnotdir);

	/* If a r/w volume, also set the CallBack state */
	if (VolumeWriteable(volptr))
	    SetCallBackStruct(AddBulkCallBack(client->z.host, tfid),
			      &CallBacks->AFSCBs_val[i]);
	else {
	    struct AFSFid myFid;
	    memset(&myFid, 0, sizeof(struct AFSFid));
	    myFid.Volume = tfid->Volume;
	    SetCallBackStruct(AddVolCallBack(client->z.host, &myFid),
			      &CallBacks->AFSCBs_val[i]);
	}

	/* put back the file ID and volume */
	(void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			       (Vnode *) 0, volptr, &client);
	parentwhentargetnotdir = (Vnode *) 0;
	targetptr = (Vnode *) 0;
	volptr = (Volume *) 0;
	client = (struct client *)0;
    }

  Bad_BulkStatus:
    /* Update and store volume/vnode and parent vnodes back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);
    errorCode = CallPostamble(tcon, errorCode, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, errorCode);

  Audit_and_Return:
    ViceLog(2, ("SAFS_BulkStatus	returns	%d\n", errorCode));
    osi_auditU(acall, BulkFetchStatusEvent, errorCode,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FIDS, Fids, AUD_END);
    return errorCode;

}				/*SRXAFS_BulkStatus */


afs_int32
SRXAFS_InlineBulkStatus(struct rx_call * acall, struct AFSCBFids * Fids,
			struct AFSBulkStats * OutStats,
			struct AFSCBs * CallBacks, struct AFSVolSync * Sync)
{
    int i;
    afs_int32 nfiles;
    Vnode *targetptr = 0;	/* pointer to vnode to fetch */
    Vnode *parentwhentargetnotdir = 0;	/* parent vnode if targetptr is a file */
    Error errorCode = 0;		/* return code to caller */
    Volume *volptr = 0;		/* pointer to the volume */
    struct client *client = 0;	/* pointer to the client data */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct AFSFid *tfid;	/* file id we're dealing with now */
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    AFSFetchStatus *tstatus;
    int VolSync_set = 0;
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_BULKSTATUS);

    ViceLog(1, ("SAFS_InlineBulkStatus\n"));
    FS_LOCK;
    AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    nfiles = Fids->AFSCBFids_len;	/* # of files in here */
    if (nfiles <= 0) {		/* Sanity check */
	errorCode = EINVAL;
	goto Audit_and_Return;
    }

    /* allocate space for return output parameters */
    OutStats->AFSBulkStats_val = calloc(nfiles, sizeof(struct AFSFetchStatus));
    if (!OutStats->AFSBulkStats_val) {
	ViceLogThenPanic(0, ("Failed malloc in SRXAFS_FetchStatus\n"));
    }
    OutStats->AFSBulkStats_len = nfiles;
    CallBacks->AFSCBs_val = calloc(nfiles, sizeof(struct AFSCallBack));
    if (!CallBacks->AFSCBs_val) {
	ViceLogThenPanic(0, ("Failed malloc in SRXAFS_FetchStatus\n"));
    }
    CallBacks->AFSCBs_len = nfiles;

    /* Zero out return values to avoid leaking information on partial succes */
    memset(Sync, 0, sizeof(*Sync));

    tfid = Fids->AFSCBFids_val;

    if ((errorCode = CallPreamble(acall, ACTIVECALL, tfid, &tcon, &thost))) {
	goto Bad_InlineBulkStatus;
    }

    for (i = 0; i < nfiles; i++, tfid++) {
	/*
	 * Get volume/vnode for the fetched file; caller's rights to it
	 * are also returned
	 */
	if ((errorCode =
	     GetVolumePackage(acall, tfid, &volptr, &targetptr, DONTCHECK,
			      &parentwhentargetnotdir, &client, READ_LOCK,
			      &rights, &anyrights))) {
	    tstatus = &OutStats->AFSBulkStats_val[i];

	    tstatus->InterfaceVersion = 1;
	    if (thost->z.hostFlags & HERRORTRANS) {
		tstatus->errorCode = sys_error_to_et(errorCode);
	    } else {
		tstatus->errorCode = errorCode;
	    }

	    PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			     (Vnode *) 0, volptr, &client);
	    parentwhentargetnotdir = (Vnode *) 0;
	    targetptr = (Vnode *) 0;
	    volptr = (Volume *) 0;
	    client = (struct client *)0;
	    continue;
	}

	/* set volume synchronization information, but only once per call */
	if (!VolSync_set) {
	    SetVolumeSync(Sync, volptr);
	    VolSync_set = 1;
	}

	/* Are we allowed to fetch Fid's status? */
	if (targetptr->disk.type != vDirectory) {
	    if ((errorCode =
		 Check_PermissionRights(targetptr, client, rights,
					CHK_FETCHSTATUS, 0))) {
		tstatus = &OutStats->AFSBulkStats_val[i];

		tstatus->InterfaceVersion = 1;
		if (thost->z.hostFlags & HERRORTRANS) {
		    tstatus->errorCode = sys_error_to_et(errorCode);
		} else {
		    tstatus->errorCode = errorCode;
		}

		(void)PutVolumePackage(acall, parentwhentargetnotdir,
				       targetptr, (Vnode *) 0, volptr,
				       &client);
		parentwhentargetnotdir = (Vnode *) 0;
		targetptr = (Vnode *) 0;
		volptr = (Volume *) 0;
		client = (struct client *)0;
		continue;
	    }
	}

	/* set OutStatus From the Fid  */
	GetStatus(targetptr,
		  (struct AFSFetchStatus *)&OutStats->AFSBulkStats_val[i],
		  rights, anyrights, parentwhentargetnotdir);

	/* If a r/w volume, also set the CallBack state */
	if (VolumeWriteable(volptr))
	    SetCallBackStruct(AddBulkCallBack(client->z.host, tfid),
			      &CallBacks->AFSCBs_val[i]);
	else {
	    struct AFSFid myFid;
	    memset(&myFid, 0, sizeof(struct AFSFid));
	    myFid.Volume = tfid->Volume;
	    SetCallBackStruct(AddVolCallBack(client->z.host, &myFid),
			      &CallBacks->AFSCBs_val[i]);
	}

	/* put back the file ID and volume */
	(void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			       (Vnode *) 0, volptr, &client);
	parentwhentargetnotdir = (Vnode *) 0;
	targetptr = (Vnode *) 0;
	volptr = (Volume *) 0;
	client = (struct client *)0;
    }
    errorCode = 0;

  Bad_InlineBulkStatus:
    /* Update and store volume/vnode and parent vnodes back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);
    errorCode = CallPostamble(tcon, errorCode, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, errorCode);

  Audit_and_Return:
    ViceLog(2, ("SAFS_InlineBulkStatus	returns	%d\n", errorCode));
    osi_auditU(acall, InlineBulkFetchStatusEvent, errorCode,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FIDS, Fids, AUD_END);
    return errorCode;

}				/*SRXAFS_InlineBulkStatus */


afs_int32
SRXAFS_FetchStatus(struct rx_call * acall, struct AFSFid * Fid,
		   struct AFSFetchStatus * OutStatus,
		   struct AFSCallBack * CallBack, struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_FETCHSTATUS);

    if ((code = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_FetchStatus;

    code = SAFSS_FetchStatus(acall, Fid, OutStatus, CallBack, Sync);

  Bad_FetchStatus:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, FetchStatusEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid, AUD_END);
    return code;

}				/*SRXAFS_FetchStatus */

static
  afs_int32
common_StoreData64(struct rx_call *acall, struct AFSFid *Fid,
		   struct AFSStoreStatus *InStatus, afs_fsize_t Pos,
		   afs_fsize_t Length, afs_fsize_t FileLength,
		   struct AFSFetchStatus *OutStatus, struct AFSVolSync *Sync)
{
    Vnode *targetptr = 0;	/* pointer to input fid */
    Vnode *parentwhentargetnotdir = 0;	/* parent of Fid to get ACL */
    Vnode tparentwhentargetnotdir;	/* parent vnode for GetStatus */
    Error errorCode = 0;		/* return code for caller */
    Error fileCode = 0;		/* return code from vol package */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon;
    struct host *thost;
    struct fsstats fsstats;
    afs_sfsize_t bytesToXfer;
    afs_sfsize_t bytesXferred;
    static int remainder = 0;

    ViceLog(1,
	    ("StoreData: Fid = %u.%u.%u\n", Fid->Volume, Fid->Vnode,
	     Fid->Unique));

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_STOREDATA);

    FS_LOCK;
    AFSCallStats.StoreData++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if ((errorCode = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_StoreData;

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(5,
	    ("StoreData: Fid = %u.%u.%u, Host %s:%d, Id %d\n", Fid->Volume,
	     Fid->Vnode, Fid->Unique, inet_ntoa(logHostAddr),
	     ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));

    /*
     * Get associated volume/vnode for the stored file; caller's rights
     * are also returned
     */
    if ((errorCode =
	 GetVolumePackage(acall, Fid, &volptr, &targetptr, MustNOTBeDIR,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_StoreData;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    if (targetptr->disk.type == vSymlink) {
	/* Should we return a better error code here??? */
	errorCode = EISDIR;
	goto Bad_StoreData;
    }

    /* Check if we're allowed to store the data */
    if ((errorCode =
	 Check_PermissionRights(targetptr, client, rights, CHK_STOREDATA,
				InStatus))) {
	goto Bad_StoreData;
    }

    /*
     * Drop the read lock on the parent directory after saving the parent
     * vnode information we need to pass to GetStatus
     */
    if (parentwhentargetnotdir != NULL) {
	tparentwhentargetnotdir = *parentwhentargetnotdir;
	VPutVnode(&fileCode, parentwhentargetnotdir);
	assert_vnode_success_or_salvaging(fileCode);
	parentwhentargetnotdir = NULL;
    }

    fsstats_StartXfer(&fsstats, FS_STATS_XFERIDX_STOREDATA);

    errorCode =
	StoreData_RXStyle(volptr, targetptr, Fid, client, acall, Pos, Length,
			  FileLength, (InStatus->Mask & AFS_FSYNC),
			  &bytesToXfer, &bytesXferred);

    fsstats_FinishXfer(&fsstats, errorCode, bytesToXfer, bytesXferred,
		       &remainder);

    if (errorCode && (!targetptr->changed_newTime))
	goto Bad_StoreData;

    /* Update the status of the target's vnode */
    Update_TargetVnodeStatus(targetptr, TVS_SDATA, client, InStatus,
			     targetptr, volptr, 0, 0);

    /* Get the updated File's status back to the caller */
    GetStatus(targetptr, OutStatus, rights, anyrights,
	      &tparentwhentargetnotdir);

  Bad_StoreData:
    /* Update and store volume/vnode and parent vnodes back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);
    ViceLog(2, ("SAFS_StoreData	returns	%d\n", errorCode));

    errorCode = CallPostamble(tcon, errorCode, thost);

    fsstats_FinishOp(&fsstats, errorCode);

    osi_auditU(acall, StoreDataEvent, errorCode,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid, AUD_END);
    return (errorCode);
}				/*common_StoreData64 */

afs_int32
SRXAFS_StoreData(struct rx_call * acall, struct AFSFid * Fid,
		 struct AFSStoreStatus * InStatus, afs_uint32 Pos,
		 afs_uint32 Length, afs_uint32 FileLength,
		 struct AFSFetchStatus * OutStatus, struct AFSVolSync * Sync)
{
    if (FileLength > 0x7fffffff || Pos > 0x7fffffff ||
	(0x7fffffff - Pos) < Length)
        return EFBIG;

    return common_StoreData64(acall, Fid, InStatus, Pos, Length, FileLength,
	                      OutStatus, Sync);
}				/*SRXAFS_StoreData */

afs_int32
SRXAFS_StoreData64(struct rx_call * acall, struct AFSFid * Fid,
		   struct AFSStoreStatus * InStatus, afs_uint64 Pos,
		   afs_uint64 Length, afs_uint64 FileLength,
		   struct AFSFetchStatus * OutStatus,
		   struct AFSVolSync * Sync)
{
    int code;
    afs_fsize_t tPos;
    afs_fsize_t tLength;
    afs_fsize_t tFileLength;

    tPos = (afs_fsize_t) Pos;
    tLength = (afs_fsize_t) Length;
    tFileLength = (afs_fsize_t) FileLength;

    code =
	common_StoreData64(acall, Fid, InStatus, tPos, tLength, tFileLength,
			   OutStatus, Sync);
    return code;
}

static char *
printableACL(char *AccessList)
{
    char *s;
    size_t i;
    size_t len = strlen(AccessList);

    s = calloc(1, len + 1);
    if (s == NULL)
	return NULL;

    for (i = 0; i < len; i++) {
	if (AccessList[i] == '\n')
	    s[i] = ' ';
	else
	    s[i] = AccessList[i];
    }
    return s;
}

/**
 * Check if the given ACL blob is okay to use.
 *
 * If the given ACL is 0-length, or doesn't contain a NUL byte, return an error
 * and refuse the process the given ACL. The ACL must contain a NUL byte,
 * otherwise ACL-processing code may run off the end of the buffer and process
 * uninitialized memory.
 *
 * If there is any data beyond the NUL byte, just ignore it and return success.
 * We won't look at any post-NUL data, but theoretically clients could send
 * such an ACL to us, since historically it's been allowed.
 *
 * @param[in] AccessList    The ACL blob to check
 *
 * @returns errno error code to abort the call with
 * @retval 0 ACL is okay to use
 */
static afs_int32
check_acl(struct AFSOpaque *AccessList)
{
    if (AccessList->AFSOpaque_len == 0) {
	return EINVAL;
    }
    if (memchr(AccessList->AFSOpaque_val, '\0',
	       AccessList->AFSOpaque_len) == NULL) {
	return EINVAL;
    }
    return 0;
}

static afs_int32
common_StoreACL(afs_uint64 opcode,
		struct rx_call * acall, struct AFSFid * Fid,
		struct AFSOpaque *uncheckedACL,
		struct AFSFetchStatus * OutStatus, struct AFSVolSync * Sync)
{
    Vnode *targetptr = 0;	/* pointer to input fid */
    Vnode *parentwhentargetnotdir = 0;	/* parent of Fid to get ACL */
    Error errorCode = 0;		/* return code for caller */
    struct AFSStoreStatus InStatus;	/* Input status for fid */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct fsstats fsstats;
    char *displayACL = NULL;
    char *rawACL = NULL;
    int newOpcode = (opcode == opcode_RXAFS_StoreACL);

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_STOREACL);

    if ((errorCode = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_StoreACL;

    errorCode = check_acl(uncheckedACL);
    if (errorCode != 0) {
	goto Bad_StoreACL;
    }
    rawACL = uncheckedACL->AFSOpaque_val;

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    displayACL = printableACL(rawACL);
    ViceLog(newOpcode ? 1 : 0,
	    ("SAFS_StoreACL%s, Fid = %u.%u.%u, ACL=%s, Host %s:%d, Id %d\n",
	     newOpcode ? "" : " CVE-2018-7168",
	     Fid->Volume, Fid->Vnode, Fid->Unique,
	     displayACL == NULL ? rawACL : displayACL,
	     inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.StoreACL++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    InStatus.Mask = 0;		/* not storing any status */

    /*
     * Get associated volume/vnode for the target dir; caller's rights
     * are also returned.
     */
    if ((errorCode =
	 GetVolumePackage(acall, Fid, &volptr, &targetptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_StoreACL;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Check if we have permission to change the dir's ACL */
    if ((errorCode =
	 Check_PermissionRights(targetptr, client, rights, CHK_STOREACL,
				&InStatus))) {
	goto Bad_StoreACL;
    }

    if (opcode == opcode_RXAFS_OldStoreACL && !enable_old_store_acl) {
	/* CVE-2018-7168 - administratively prohibited */
	errorCode = EPERM;
	goto Bad_StoreACL;
    }

    /* Build and store the new Access List for the dir */
    if ((errorCode = RXStore_AccessList(targetptr, rawACL))) {
	goto Bad_StoreACL;
    }

    targetptr->changed_newTime = 1;	/* status change of directory */

    /* convert the write lock to a read lock before breaking callbacks */
    VVnodeWriteToRead(&errorCode, targetptr);
    assert_vnode_success_or_salvaging(errorCode);

    /* break call backs on the directory  */
    BreakCallBack(client->z.host, Fid, 0);

    /* Get the updated dir's status back to the caller */
    GetStatus(targetptr, OutStatus, rights, anyrights, 0);

  Bad_StoreACL:
    /* Update and store volume/vnode and parent vnodes back */
    PutVolumePackage(acall, parentwhentargetnotdir, targetptr, (Vnode *) 0,
		     volptr, &client);

    ViceLog(2, ("%s returns %d\n",
		opcode == opcode_RXAFS_StoreACL ? "SAFS_StoreACL"
		 : "SAFS_OldStoreACL",
		errorCode));
    errorCode = CallPostamble(tcon, errorCode, thost);

    fsstats_FinishOp(&fsstats, errorCode);

    osi_auditU(acall, StoreACLEvent, errorCode,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid, AUD_ACL,
	       displayACL == NULL ? rawACL : displayACL,
	       AUD_END);
    free(displayACL);
    return errorCode;

}				/*SRXAFS_StoreACL */

/* SRXAFS_OldStoreACL (Deprecated - CVE-2018-7168 */
afs_int32
SRXAFS_OldStoreACL(struct rx_call *acall, struct AFSFid *Fid,
		struct AFSOpaque *AccessList,
		struct AFSFetchStatus *OutStatus, struct AFSVolSync *Sync)
{
    return common_StoreACL(opcode_RXAFS_OldStoreACL, acall, Fid, AccessList,
			   OutStatus, Sync);
}

afs_int32
SRXAFS_StoreACL(struct rx_call *acall, struct AFSFid *Fid,
		struct AFSOpaque *AccessList,
		struct AFSFetchStatus *OutStatus, struct AFSVolSync *Sync)
{
    return common_StoreACL(opcode_RXAFS_StoreACL, acall, Fid, AccessList,
			   OutStatus, Sync);
}

/*
 * Note: This routine is called exclusively from SRXAFS_StoreStatus(), and
 * should be merged when possible.
 */
static afs_int32
SAFSS_StoreStatus(struct rx_call *acall, struct AFSFid *Fid,
		  struct AFSStoreStatus *InStatus,
		  struct AFSFetchStatus *OutStatus, struct AFSVolSync *Sync)
{
    Vnode *targetptr = 0;	/* pointer to input fid */
    Vnode *parentwhentargetnotdir = 0;	/* parent of Fid to get ACL */
    Error errorCode = 0;		/* return code for caller */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_StoreStatus,  Fid	= %u.%u.%u, Host %s:%d, Id %d\n",
	     Fid->Volume, Fid->Vnode, Fid->Unique, inet_ntoa(logHostAddr),
	     ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.StoreStatus++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    /*
     * Get volume/vnode for the target file; caller's rights to it are
     * also returned
     */
    if ((errorCode =
	 GetVolumePackage(acall, Fid, &volptr, &targetptr, DONTCHECK,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_StoreStatus;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Check if the caller has proper permissions to store status to Fid */
    if ((errorCode =
	 Check_PermissionRights(targetptr, client, rights, CHK_STORESTATUS,
				InStatus))) {
	goto Bad_StoreStatus;
    }
    /*
     * Check for a symbolic link; we can't chmod these (otherwise could
     * change a symlink to a mt pt or vice versa)
     */
    if (targetptr->disk.type == vSymlink && (InStatus->Mask & AFS_SETMODE)) {
	errorCode = EINVAL;
	goto Bad_StoreStatus;
    }

    /* Update the status of the target's vnode */
    Update_TargetVnodeStatus(targetptr, TVS_SSTATUS, client, InStatus,
			     (parentwhentargetnotdir ? parentwhentargetnotdir
			      : targetptr), volptr, 0, 0);

    /* convert the write lock to a read lock before breaking callbacks */
    VVnodeWriteToRead(&errorCode, targetptr);
    assert_vnode_success_or_salvaging(errorCode);

    /* Break call backs on Fid */
    BreakCallBack(client->z.host, Fid, 0);

    /* Return the updated status back to caller */
    GetStatus(targetptr, OutStatus, rights, anyrights,
	      parentwhentargetnotdir);

  Bad_StoreStatus:
    /* Update and store volume/vnode and parent vnodes back */
    PutVolumePackage(acall, parentwhentargetnotdir, targetptr, (Vnode *) 0,
		     volptr, &client);
    ViceLog(2, ("SAFS_StoreStatus returns %d\n", errorCode));
    return errorCode;

}				/*SAFSS_StoreStatus */


afs_int32
SRXAFS_StoreStatus(struct rx_call * acall, struct AFSFid * Fid,
		   struct AFSStoreStatus * InStatus,
		   struct AFSFetchStatus * OutStatus,
		   struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_STORESTATUS);

    if ((code = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_StoreStatus;

    code = SAFSS_StoreStatus(acall, Fid, InStatus, OutStatus, Sync);

  Bad_StoreStatus:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, StoreStatusEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid, AUD_END);
    return code;

}				/*SRXAFS_StoreStatus */


/*
 * This routine is called exclusively by SRXAFS_RemoveFile(), and should be
 * merged in when possible.
 */
static afs_int32
SAFSS_RemoveFile(struct rx_call *acall, struct AFSFid *DirFid, char *Name,
		 struct AFSFetchStatus *OutDirStatus, struct AFSVolSync *Sync)
{
    Vnode *parentptr = 0;	/* vnode of input Directory */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Vnode *targetptr = 0;	/* file to be deleted */
    Volume *volptr = 0;		/* pointer to the volume header */
    AFSFid fileFid;		/* area for Fid from the directory */
    Error errorCode = 0;		/* error code */
    DirHandle dir;		/* Handle for dir package I/O */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    FidZero(&dir);
    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_RemoveFile %s,  Did = %u.%u.%u, Host %s:%d, Id %d\n", Name,
	     DirFid->Volume, DirFid->Vnode, DirFid->Unique,
	     inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.RemoveFile++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    /*
     * Get volume/vnode for the parent dir; caller's access rights are
     * also returned
     */
    if ((errorCode =
	 GetVolumePackage(acall, DirFid, &volptr, &parentptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_RemoveFile;
    }
    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Does the caller has delete (& write) access to the parent directory? */
    if ((errorCode = CheckWriteMode(parentptr, rights, PRSFS_DELETE, client))) {
	goto Bad_RemoveFile;
    }

    /* Actually delete the desired file */
    if ((errorCode =
	 DeleteTarget(parentptr, volptr, &targetptr, &dir, &fileFid, Name,
		      MustNOTBeDIR))) {
	goto Bad_RemoveFile;
    }

    /* Update the vnode status of the parent dir */
    Update_ParentVnodeStatus(parentptr, volptr, &dir, client->z.ViceId,
			     parentptr->disk.linkCount,
			     client->z.InSameNetwork);

    /* Return the updated parent dir's status back to caller */
    GetStatus(parentptr, OutDirStatus, rights, anyrights, 0);

    /* Handle internal callback state for the parent and the deleted file */
    if (targetptr->disk.linkCount == 0) {
	/* no references left, discard entry */
	DeleteFileCallBacks(&fileFid);
	/* convert the parent lock to a read lock before breaking callbacks */
	VVnodeWriteToRead(&errorCode, parentptr);
	assert_vnode_success_or_salvaging(errorCode);
    } else {
	/* convert the parent lock to a read lock before breaking callbacks */
	VVnodeWriteToRead(&errorCode, parentptr);
	assert_vnode_success_or_salvaging(errorCode);
	/* convert the target lock to a read lock before breaking callbacks */
	VVnodeWriteToRead(&errorCode, targetptr);
	assert_vnode_success_or_salvaging(errorCode);
	/* tell all the file has changed */
	BreakCallBack(client->z.host, &fileFid, 1);
    }

    /* break call back on the directory */
    BreakCallBack(client->z.host, DirFid, 0);

  Bad_RemoveFile:
    /* Update and store volume/vnode and parent vnodes back */
    PutVolumePackage(acall, parentwhentargetnotdir, targetptr, parentptr,
		     volptr, &client);
    FidZap(&dir);
    ViceLog(2, ("SAFS_RemoveFile returns %d\n", errorCode));
    return errorCode;

}				/*SAFSS_RemoveFile */


afs_int32
SRXAFS_RemoveFile(struct rx_call * acall, struct AFSFid * DirFid, char *Name,
		  struct AFSFetchStatus * OutDirStatus,
		  struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_REMOVEFILE);

    if ((code = CallPreamble(acall, ACTIVECALL, DirFid, &tcon, &thost)))
	goto Bad_RemoveFile;

    code = SAFSS_RemoveFile(acall, DirFid, Name, OutDirStatus, Sync);

  Bad_RemoveFile:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, RemoveFileEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, DirFid, AUD_STR, Name, AUD_END);
    return code;

}				/*SRXAFS_RemoveFile */


/*
 * This routine is called exclusively from SRXAFS_CreateFile(), and should
 * be merged in when possible.
 */
static afs_int32
SAFSS_CreateFile(struct rx_call *acall, struct AFSFid *DirFid, char *Name,
		 struct AFSStoreStatus *InStatus, struct AFSFid *OutFid,
		 struct AFSFetchStatus *OutFidStatus,
		 struct AFSFetchStatus *OutDirStatus,
		 struct AFSCallBack *CallBack, struct AFSVolSync *Sync)
{
    Vnode *parentptr = 0;	/* vnode of input Directory */
    Vnode *targetptr = 0;	/* vnode of the new file */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Volume *volptr = 0;		/* pointer to the volume header */
    Error errorCode = 0;		/* error code */
    DirHandle dir;		/* Handle for dir package I/O */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    FidZero(&dir);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_CreateFile %s,  Did = %u.%u.%u, Host %s:%d, Id %d\n", Name,
	     DirFid->Volume, DirFid->Vnode, DirFid->Unique,
	     inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.CreateFile++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if (!FileNameOK(Name)) {
	errorCode = EINVAL;
	goto Bad_CreateFile;
    }

    /*
     * Get associated volume/vnode for the parent dir; caller long are
     * also returned
     */
    if ((errorCode =
	 GetVolumePackage(acall, DirFid, &volptr, &parentptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_CreateFile;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Can we write (and insert) onto the parent directory? */
    if ((errorCode = CheckWriteMode(parentptr, rights, PRSFS_INSERT, client))) {
	goto Bad_CreateFile;
    }

    /* get a new vnode for the file to be created and set it up */
    if ((errorCode =
	 Alloc_NewVnode(parentptr, &dir, volptr, &targetptr, Name, OutFid,
			vFile, nBlocks(0))))
	goto Bad_CreateFile;

    /* update the status of the parent vnode */
    Update_ParentVnodeStatus(parentptr, volptr, &dir, client->z.ViceId,
			     parentptr->disk.linkCount,
			     client->z.InSameNetwork);

    /* update the status of the new file's vnode */
    Update_TargetVnodeStatus(targetptr, TVS_CFILE, client, InStatus,
			     parentptr, volptr, 0, 0);

    /* set up the return status for the parent dir and the newly created file, and since the newly created file is owned by the creator, give it PRSFS_ADMINISTER to tell the client its the owner of the file */
    GetStatus(targetptr, OutFidStatus, rights | PRSFS_ADMINISTER, anyrights, parentptr);
    GetStatus(parentptr, OutDirStatus, rights, anyrights, 0);

    /* convert the write lock to a read lock before breaking callbacks */
    VVnodeWriteToRead(&errorCode, parentptr);
    assert_vnode_success_or_salvaging(errorCode);

    /* break call back on parent dir */
    BreakCallBack(client->z.host, DirFid, 0);

    /* Return a callback promise for the newly created file to the caller */
    SetCallBackStruct(AddCallBack(client->z.host, OutFid), CallBack);

  Bad_CreateFile:
    /* Update and store volume/vnode and parent vnodes back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr, parentptr,
			   volptr, &client);
    FidZap(&dir);
    ViceLog(2, ("SAFS_CreateFile returns %d\n", errorCode));
    return errorCode;

}				/*SAFSS_CreateFile */


afs_int32
SRXAFS_CreateFile(struct rx_call * acall, struct AFSFid * DirFid, char *Name,
		  struct AFSStoreStatus * InStatus, struct AFSFid * OutFid,
		  struct AFSFetchStatus * OutFidStatus,
		  struct AFSFetchStatus * OutDirStatus,
		  struct AFSCallBack * CallBack, struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_CREATEFILE);

    memset(OutFid, 0, sizeof(struct AFSFid));

    if ((code = CallPreamble(acall, ACTIVECALL, DirFid, &tcon, &thost)))
	goto Bad_CreateFile;

    code =
	SAFSS_CreateFile(acall, DirFid, Name, InStatus, OutFid, OutFidStatus,
			 OutDirStatus, CallBack, Sync);

  Bad_CreateFile:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, CreateFileEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, DirFid, AUD_STR, Name, AUD_FID, OutFid, AUD_END);
    return code;

}				/*SRXAFS_CreateFile */


/*
 * This routine is called exclusively from SRXAFS_Rename(), and should be
 * merged in when possible.
 */
static afs_int32
SAFSS_Rename(struct rx_call *acall, struct AFSFid *OldDirFid, char *OldName,
	     struct AFSFid *NewDirFid, char *NewName,
	     struct AFSFetchStatus *OutOldDirStatus,
	     struct AFSFetchStatus *OutNewDirStatus, struct AFSVolSync *Sync)
{
    Vnode *oldvptr = 0;		/* vnode of the old Directory */
    Vnode *newvptr = 0;		/* vnode of the new Directory */
    Vnode *fileptr = 0;		/* vnode of the file to move */
    Vnode *newfileptr = 0;	/* vnode of the file to delete */
    Vnode *testvptr = 0;	/* used in directory tree walk */
    Vnode *parent = 0;		/* parent for use in SetAccessList */
    Error errorCode = 0;		/* error code */
    Error fileCode = 0;		/* used when writing Vnodes */
    VnodeId testnode;		/* used in directory tree walk */
    AFSFid fileFid;		/* Fid of file to move */
    AFSFid newFileFid;		/* Fid of new file */
    DirHandle olddir;		/* Handle for dir package I/O */
    DirHandle newdir;		/* Handle for dir package I/O */
    DirHandle filedir;		/* Handle for dir package I/O */
    DirHandle newfiledir;	/* Handle for dir package I/O */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    afs_int32 newrights;	/* rights for this user */
    afs_int32 newanyrights;	/* rights for any user */
    int doDelete;		/* deleted the rename target (ref count now 0) */
    int code;
    int updatefile = 0;		/* are we changing the renamed file? (we do this
				 * if we need to update .. on a renamed dir) */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);
    afs_ino_str_t stmp;

    FidZero(&olddir);
    FidZero(&newdir);
    FidZero(&filedir);
    FidZero(&newfiledir);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_Rename %s	to %s,	Fid = %u.%u.%u to %u.%u.%u, Host %s:%d, Id %d\n",
	     OldName, NewName, OldDirFid->Volume, OldDirFid->Vnode,
	     OldDirFid->Unique, NewDirFid->Volume, NewDirFid->Vnode,
	     NewDirFid->Unique, inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.Rename++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if (!FileNameOK(NewName)) {
	errorCode = EINVAL;
	goto Bad_Rename;
    }
    if (OldDirFid->Volume != NewDirFid->Volume) {
	DFlush();
	errorCode = EXDEV;
	goto Bad_Rename;
    }
    if ((strcmp(OldName, ".") == 0) || (strcmp(OldName, "..") == 0)
	|| (strcmp(NewName, ".") == 0) || (strcmp(NewName, "..") == 0)
	|| (strlen(NewName) == 0) || (strlen(OldName) == 0)) {
	DFlush();
	errorCode = EINVAL;
	goto Bad_Rename;
    }

    if (OldDirFid->Vnode <= NewDirFid->Vnode) {
	if ((errorCode =
	     GetVolumePackage(acall, OldDirFid, &volptr, &oldvptr, MustBeDIR,
			      &parent, &client, WRITE_LOCK, &rights,
			      &anyrights))) {
	    DFlush();
	    goto Bad_Rename;
	}
	if (OldDirFid->Vnode == NewDirFid->Vnode) {
	    newvptr = oldvptr;
	    newrights = rights, newanyrights = anyrights;
	} else
	    if ((errorCode =
		 GetVolumePackage(acall, NewDirFid, &volptr, &newvptr,
				  MustBeDIR, &parent, &client, WRITE_LOCK,
				  &newrights, &newanyrights))) {
	    DFlush();
	    goto Bad_Rename;
	}
    } else {
	if ((errorCode =
	     GetVolumePackage(acall, NewDirFid, &volptr, &newvptr, MustBeDIR,
			      &parent, &client, WRITE_LOCK, &newrights,
			      &newanyrights))) {
	    DFlush();
	    goto Bad_Rename;
	}
	if ((errorCode =
	     GetVolumePackage(acall, OldDirFid, &volptr, &oldvptr, MustBeDIR,
			      &parent, &client, WRITE_LOCK, &rights,
			      &anyrights))) {
	    DFlush();
	    goto Bad_Rename;
	}
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    if ((errorCode = CheckWriteMode(oldvptr, rights, PRSFS_DELETE, client))) {
	goto Bad_Rename;
    }
    if ((errorCode = CheckWriteMode(newvptr, newrights, PRSFS_INSERT,
				    client))) {
	goto Bad_Rename;
    }

    if (CheckLength(volptr, oldvptr, -1) ||
        CheckLength(volptr, newvptr, -1)) {
	VTakeOffline(volptr);
	errorCode = VSALVAGE;
	goto Bad_Rename;
    }

    /* The CopyOnWrite might return ENOSPC ( disk full). Even if the second
     *  call to CopyOnWrite returns error, it is not necessary to revert back
     *  the effects of the first call because the contents of the volume is
     *  not modified, it is only replicated.
     */
    if (oldvptr->disk.cloned) {
	ViceLog(25, ("Rename : calling CopyOnWrite on  old dir\n"));
	if ((errorCode = CopyOnWrite(oldvptr, volptr, 0, MAXFSIZE)))
	    goto Bad_Rename;
    }
    SetDirHandle(&olddir, oldvptr);
    if (newvptr->disk.cloned) {
	ViceLog(25, ("Rename : calling CopyOnWrite on  new dir\n"));
	if ((errorCode = CopyOnWrite(newvptr, volptr, 0, MAXFSIZE)))
	    goto Bad_Rename;
    }

    SetDirHandle(&newdir, newvptr);

    /* Lookup the file to delete its vnode */
    errorCode = afs_dir_Lookup(&olddir, OldName, &fileFid);
    if (errorCode && errorCode != ENOENT) {
        errorCode = EIO;
    }
    if (errorCode) {
	goto Bad_Rename;
    }
    if (fileFid.Vnode == oldvptr->vnodeNumber
	|| fileFid.Vnode == newvptr->vnodeNumber) {
	errorCode = FSERR_ELOOP;
	goto Bad_Rename;
    }
    fileFid.Volume = V_id(volptr);
    fileptr = VGetVnode(&errorCode, volptr, fileFid.Vnode, WRITE_LOCK);
    if (errorCode != 0) {
	ViceLog(0,
		("SAFSS_Rename(): Error in VGetVnode() for old file %s, code %d\n",
		 OldName, errorCode));
	VTakeOffline(volptr);
	goto Bad_Rename;
    }
    if (fileptr->disk.uniquifier != fileFid.Unique) {
	ViceLog(0,
		("SAFSS_Rename(): Old file %s uniquifier mismatch\n",
		 OldName));
	VTakeOffline(volptr);
	errorCode = EIO;
	goto Bad_Rename;
    }

    if (fileptr->disk.type != vDirectory && oldvptr != newvptr
	&& fileptr->disk.linkCount != 1) {
	/*
	 * Hard links exist to this file - cannot move one of the links to
	 * a new directory because of AFS restrictions (this is the same
	 * reason that links cannot be made across directories, i.e.
	 * access lists)
	 */
	errorCode = EXDEV;
	goto Bad_Rename;
    }

    /* Lookup the new file  */
    code = afs_dir_Lookup(&newdir, NewName, &newFileFid);
    if (code && code != ENOENT) {
        errorCode = EIO;
        goto Bad_Rename;
    }
    if (!code) {
	if (!IsWriteAllowed(client)) {
	    errorCode = VREADONLY;
	    goto Bad_Rename;
	}
	if (!(newrights & PRSFS_DELETE)) {
	    errorCode = EACCES;
	    goto Bad_Rename;
	}
	if (newFileFid.Vnode == oldvptr->vnodeNumber
	    || newFileFid.Vnode == newvptr->vnodeNumber
	    || newFileFid.Vnode == fileFid.Vnode) {
	    errorCode = EINVAL;
	    goto Bad_Rename;
	}
	newFileFid.Volume = V_id(volptr);
	newfileptr =
	    VGetVnode(&errorCode, volptr, newFileFid.Vnode, WRITE_LOCK);
	if (errorCode != 0) {
	    ViceLog(0,
		    ("SAFSS_Rename(): Error in VGetVnode() for new file %s, code %d\n",
		     NewName, errorCode));
	    VTakeOffline(volptr);
	    goto Bad_Rename;
	}
	if (fileptr->disk.uniquifier != fileFid.Unique) {
	    ViceLog(0,
		    ("SAFSS_Rename(): New file %s uniquifier mismatch\n",
		     NewName));
	    VTakeOffline(volptr);
	    errorCode = EIO;
	    goto Bad_Rename;
	}
	SetDirHandle(&newfiledir, newfileptr);
	/* Now check that we're moving directories over directories properly, etc.
	 * return proper POSIX error codes:
	 * if fileptr is a file and new is a dir: EISDIR.
	 * if fileptr is a dir and new is a file: ENOTDIR.
	 * Also, dir to be removed must be empty, of course.
	 */
	if (newfileptr->disk.type == vDirectory) {
	    if (fileptr->disk.type != vDirectory) {
		errorCode = EISDIR;
		goto Bad_Rename;
	    }
	    if ((afs_dir_IsEmpty(&newfiledir))) {
		errorCode = EEXIST;
		goto Bad_Rename;
	    }
	} else {
	    if (fileptr->disk.type == vDirectory) {
		errorCode = ENOTDIR;
		goto Bad_Rename;
	    }
	}
    }

    /*
     * ok - now we check that the old name is not above new name in the
     * directory structure.  This is to prevent removing a subtree alltogether
     */
    if ((oldvptr != newvptr) && (fileptr->disk.type == vDirectory)) {
        afs_int32 forpass = 0, vnum = 0, top = 0;
	for (testnode = newvptr->disk.parent; testnode != 0; forpass++) {
	    if (testnode > vnum) vnum = testnode;
	    if (forpass > vnum) {
		errorCode = FSERR_ELOOP;
		goto Bad_Rename;
	    }
	    if (testnode == oldvptr->vnodeNumber) {
		testnode = oldvptr->disk.parent;
		continue;
	    }
	    if ((testnode == fileptr->vnodeNumber)
		|| (testnode == newvptr->vnodeNumber)) {
		errorCode = FSERR_ELOOP;
		goto Bad_Rename;
	    }
	    if ((newfileptr) && (testnode == newfileptr->vnodeNumber)) {
		errorCode = FSERR_ELOOP;
		goto Bad_Rename;
	    }
	    if (testnode == 1) top = 1;
	    testvptr = VGetVnode(&errorCode, volptr, testnode, READ_LOCK);
	    assert_vnode_success_or_salvaging(errorCode);
	    testnode = testvptr->disk.parent;
	    VPutVnode(&errorCode, testvptr);
	    if ((top == 1) && (testnode != 0)) {
		VTakeOffline(volptr);
		ViceLog(0,
			("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
			 afs_printable_VolumeId_lu(volptr->hashid)));
		errorCode = EIO;
		goto Bad_Rename;
	    }
	    assert_vnode_success_or_salvaging(errorCode);
	}
    }

    if (fileptr->disk.type == vDirectory) {
	SetDirHandle(&filedir, fileptr);
	if (oldvptr != newvptr) {
	    /* we always need to update .. if we've moving fileptr to a
	     * different directory */
	    updatefile = 1;
	} else {
	    struct AFSFid unused;

	    code = afs_dir_Lookup(&filedir, "..", &unused);
            if (code && code != ENOENT) {
                errorCode = EIO;
                goto Bad_Rename;
            }
	    if (code == ENOENT) {
		/* only update .. if it doesn't already exist */
		updatefile = 1;
	    }
	}
    }

    /* Do the CopyonWrite first before modifying anything else. Copying is
     * required when we have to change entries for ..
     */
    if (updatefile && (fileptr->disk.cloned)) {
	ViceLog(25, ("Rename : calling CopyOnWrite on  target dir\n"));
	if ((errorCode = CopyOnWrite(fileptr, volptr, 0, MAXFSIZE)))
	    goto Bad_Rename;
	/* since copyonwrite would mean fileptr has a new handle, do it here */
	FidZap(&filedir);
	SetDirHandle(&filedir, fileptr);
    }

    /* If the new name exists already, delete it and the file it points to */
    doDelete = 0;
    if (newfileptr) {
	/* Delete NewName from its directory */
	code = afs_dir_Delete(&newdir, NewName);
	opr_Assert(code == 0);

	/* Drop the link count */
	newfileptr->disk.linkCount--;
	if (newfileptr->disk.linkCount == 0) {	/* Link count 0 - delete */
	    afs_fsize_t newSize;
	    VN_GET_LEN(newSize, newfileptr);
	    VAdjustDiskUsage((Error *) & errorCode, volptr,
			     (afs_sfsize_t) - nBlocks(newSize), 0);
	    if (VN_GET_INO(newfileptr)) {
		IH_REALLYCLOSE(newfileptr->handle);
		errorCode =
		    IH_DEC(V_linkHandle(volptr), VN_GET_INO(newfileptr),
			   V_parentId(volptr));
		IH_RELEASE(newfileptr->handle);
		if (errorCode == -1) {
		    ViceLog(0,
			    ("Del: inode=%s, name=%s, errno=%d\n",
			     PrintInode(stmp, VN_GET_INO(newfileptr)),
			     NewName, errno));
		    if ((errno != ENOENT) && (errno != EIO)
			&& (errno != ENXIO))
			ViceLog(0, ("Do we need to fsck?\n"));
		}
	    }
	    VN_SET_INO(newfileptr, (Inode) 0);
	    newfileptr->delete = 1;	/* Mark NewName vnode to delete */
	    doDelete = 1;
	} else {
	    /* Link count did not drop to zero.
	     * Mark NewName vnode as changed - updates stime.
	     */
	    newfileptr->changed_newTime = 1;
	}
    }

    /*
     * If the create below fails, and the delete above worked, we have
     * removed the new name and not replaced it.  This is not very likely,
     * but possible.  We could try to put the old file back, but it is
     * highly unlikely that it would work since it would involve issuing
     * another create.
     */
    if ((errorCode = afs_dir_Create(&newdir, NewName, &fileFid)))
	goto Bad_Rename;

    /* Delete the old name */
    opr_Assert(afs_dir_Delete(&olddir, OldName) == 0);

    /* if the directory length changes, reflect it in the statistics */
    Update_ParentVnodeStatus(oldvptr, volptr, &olddir, client->z.ViceId,
			     oldvptr->disk.linkCount, client->z.InSameNetwork);
    Update_ParentVnodeStatus(newvptr, volptr, &newdir, client->z.ViceId,
			     newvptr->disk.linkCount, client->z.InSameNetwork);

    if (oldvptr == newvptr)
	oldvptr->disk.dataVersion--;	/* Since it was bumped by 2! */

    if (fileptr->disk.parent != newvptr->vnodeNumber) {
	fileptr->disk.parent = newvptr->vnodeNumber;
	fileptr->changed_newTime = 1;
    }

    /* if we are dealing with a rename of a directory, and we need to
     * update the .. entry of that directory */
    if (updatefile) {
	opr_Assert(!fileptr->disk.cloned);

	fileptr->changed_newTime = 1;	/* status change of moved file */

	/* fix .. to point to the correct place */
	afs_dir_Delete(&filedir, "..");	/* No assert--some directories may be bad */
	opr_Assert(afs_dir_Create(&filedir, "..", NewDirFid) == 0);
	fileptr->disk.dataVersion++;

	/* if the parent directories are different the link counts have to be   */
	/* changed due to .. in the renamed directory */
	if (oldvptr != newvptr) {
	    oldvptr->disk.linkCount--;
	    newvptr->disk.linkCount++;
	}
    }

    /* set up return status */
    GetStatus(oldvptr, OutOldDirStatus, rights, anyrights, 0);
    GetStatus(newvptr, OutNewDirStatus, newrights, newanyrights, 0);
    if (newfileptr && doDelete) {
	DeleteFileCallBacks(&newFileFid);	/* no other references */
    }

    DFlush();

    /* convert the write locks to a read locks before breaking callbacks */
    VVnodeWriteToRead(&errorCode, newvptr);
    assert_vnode_success_or_salvaging(errorCode);
    if (oldvptr != newvptr) {
	VVnodeWriteToRead(&errorCode, oldvptr);
	assert_vnode_success_or_salvaging(errorCode);
    }
    if (newfileptr && !doDelete) {
	/* convert the write lock to a read lock before breaking callbacks */
	VVnodeWriteToRead(&errorCode, newfileptr);
	assert_vnode_success_or_salvaging(errorCode);
    }

    /* break call back on NewDirFid, OldDirFid, NewDirFid and newFileFid  */
    BreakCallBack(client->z.host, NewDirFid, 0);
    if (oldvptr != newvptr) {
	BreakCallBack(client->z.host, OldDirFid, 0);
    }
    if (updatefile) {
	/* if a dir moved, .. changed */
	/* we do not give an AFSFetchStatus structure back to the
	 * originating client, and the file's status has changed, so be
	 * sure to send a callback break. In theory the client knows
	 * enough to know that the callback could be broken implicitly,
	 * but that may not be clear, and some client implementations
	 * may not know to. */
	BreakCallBack(client->z.host, &fileFid, 1);
    }
    if (newfileptr) {
	/* Note:  it is not necessary to break the callback */
	if (doDelete)
	    DeleteFileCallBacks(&newFileFid);	/* no other references */
	else
	    /* other's still exist (with wrong link count) */
	    BreakCallBack(client->z.host, &newFileFid, 1);
    }

  Bad_Rename:
    if (newfileptr) {
	VPutVnode(&fileCode, newfileptr);
	assert_vnode_success_or_salvaging(fileCode);
    }
    (void)PutVolumePackage(acall, fileptr, (newvptr && newvptr != oldvptr ?
				     newvptr : 0), oldvptr, volptr, &client);
    FidZap(&olddir);
    FidZap(&newdir);
    FidZap(&filedir);
    FidZap(&newfiledir);
    ViceLog(2, ("SAFS_Rename returns %d\n", errorCode));
    return errorCode;

}				/*SAFSS_Rename */


afs_int32
SRXAFS_Rename(struct rx_call * acall, struct AFSFid * OldDirFid,
	      char *OldName, struct AFSFid * NewDirFid, char *NewName,
	      struct AFSFetchStatus * OutOldDirStatus,
	      struct AFSFetchStatus * OutNewDirStatus,
	      struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_RENAME);

    if ((code = CallPreamble(acall, ACTIVECALL, OldDirFid, &tcon, &thost)))
	goto Bad_Rename;

    code =
	SAFSS_Rename(acall, OldDirFid, OldName, NewDirFid, NewName,
		     OutOldDirStatus, OutNewDirStatus, Sync);

  Bad_Rename:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, RenameFileEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, OldDirFid, AUD_STR, OldName,
	       AUD_FID, NewDirFid, AUD_STR, NewName, AUD_END);
    return code;

}				/*SRXAFS_Rename */


/*
 * This routine is called exclusively by SRXAFS_Symlink(), and should be
 * merged into it when possible.
 */
static afs_int32
SAFSS_Symlink(struct rx_call *acall, struct AFSFid *DirFid, char *Name,
	      char *LinkContents, struct AFSStoreStatus *InStatus,
	      struct AFSFid *OutFid, struct AFSFetchStatus *OutFidStatus,
	      struct AFSFetchStatus *OutDirStatus, struct AFSVolSync *Sync)
{
    Vnode *parentptr = 0;	/* vnode of input Directory */
    Vnode *targetptr = 0;	/* vnode of the new link */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Error errorCode = 0;		/* error code */
    afs_sfsize_t len;
    int code = 0;
    DirHandle dir;		/* Handle for dir package I/O */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    FdHandle_t *fdP;
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    FidZero(&dir);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_Symlink %s to %s,  Did = %u.%u.%u, Host %s:%d, Id %d\n", Name,
	     LinkContents, DirFid->Volume, DirFid->Vnode, DirFid->Unique,
	     inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.Symlink++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if (!FileNameOK(Name)) {
	errorCode = EINVAL;
	goto Bad_SymLink;
    }

    /*
     * Get the vnode and volume for the parent dir along with the caller's
     * rights to it
     */
    if ((errorCode =
	 GetVolumePackage(acall, DirFid, &volptr, &parentptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights)))
	goto Bad_SymLink;

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Does the caller has insert (and write) access to the parent directory? */
    if ((errorCode = CheckWriteMode(parentptr, rights, PRSFS_INSERT, client)))
	goto Bad_SymLink;

    /*
     * If we're creating a mount point (any x bits clear), we must have
     * administer access to the directory, too.  Always allow sysadmins
     * to do this.
     */
    if ((InStatus->Mask & AFS_SETMODE) && !(InStatus->UnixModeBits & 0111)) {
	if (!IsWriteAllowed(client)) {
	    errorCode = VREADONLY;
	    goto Bad_SymLink;
	}
	/*
	 * We have a mountpoint, 'cause we're trying to set the Unix mode
	 * bits to something with some x bits missing (default mode bits
	 * if AFS_SETMODE is false is 0777)
	 */
	if (VanillaUser(client) && !(rights & PRSFS_ADMINISTER)) {
	    errorCode = EACCES;
	    goto Bad_SymLink;
	}
    }

    /* get a new vnode for the symlink and set it up */
    if ((errorCode =
	 Alloc_NewVnode(parentptr, &dir, volptr, &targetptr, Name, OutFid,
			vSymlink, nBlocks(strlen((char *)LinkContents))))) {
	goto Bad_SymLink;
    }

    /* update the status of the parent vnode */
    Update_ParentVnodeStatus(parentptr, volptr, &dir, client->z.ViceId,
			     parentptr->disk.linkCount,
			     client->z.InSameNetwork);

    /* update the status of the new symbolic link file vnode */
    Update_TargetVnodeStatus(targetptr, TVS_SLINK, client, InStatus,
			     parentptr, volptr, strlen((char *)LinkContents), 0);

    /* Write the contents of the symbolic link name into the target inode */
    fdP = IH_OPEN(targetptr->handle);
    if (fdP == NULL) {
	(void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			       parentptr, volptr, &client);
	VTakeOffline(volptr);
	ViceLog(0, ("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
		    afs_printable_VolumeId_lu(volptr->hashid)));
	return EIO;
    }
    len = strlen((char *) LinkContents);
    code = (len == FDH_PWRITE(fdP, (char *) LinkContents, len, 0)) ? 0 : VDISKFULL;
    if (code)
	ViceLog(0, ("SAFSS_Symlink FDH_PWRITE failed for len=%d, Fid=%u.%d.%d\n", (int)len, OutFid->Volume, OutFid->Vnode, OutFid->Unique));
    FDH_CLOSE(fdP);
    /*
     * Set up and return modified status for the parent dir and new symlink
     * to caller.
     */
    GetStatus(targetptr, OutFidStatus, rights, anyrights, parentptr);
    GetStatus(parentptr, OutDirStatus, rights, anyrights, 0);

    /* convert the write lock to a read lock before breaking callbacks */
    VVnodeWriteToRead(&errorCode, parentptr);
    assert_vnode_success_or_salvaging(errorCode);

    /* break call back on the parent dir */
    BreakCallBack(client->z.host, DirFid, 0);

  Bad_SymLink:
    /* Write the all modified vnodes (parent, new files) and volume back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr, parentptr,
			   volptr, &client);
    FidZap(&dir);
    ViceLog(2, ("SAFS_Symlink returns %d\n", errorCode));
    return ( errorCode ? errorCode : code );

}				/*SAFSS_Symlink */


afs_int32
SRXAFS_Symlink(struct rx_call *acall,	/* Rx call */
	       struct AFSFid *DirFid,	/* Parent dir's fid */
	       char *Name,		/* File name to create */
	       char *LinkContents,	/* Contents of the new created file */
	       struct AFSStoreStatus *InStatus,	/* Input status for the new symbolic link */
	       struct AFSFid *OutFid,	/* Fid for newly created symbolic link */
	       struct AFSFetchStatus *OutFidStatus,	/* Output status for new symbolic link */
	       struct AFSFetchStatus *OutDirStatus,	/* Output status for parent dir */
	       struct AFSVolSync *Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_SYMLINK);

    if ((code = CallPreamble(acall, ACTIVECALL, DirFid, &tcon, &thost)))
	goto Bad_Symlink;

    code =
	SAFSS_Symlink(acall, DirFid, Name, LinkContents, InStatus, OutFid,
		      OutFidStatus, OutDirStatus, Sync);

  Bad_Symlink:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, SymlinkEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, DirFid, AUD_STR, Name,
	       AUD_FID, OutFid, AUD_STR, LinkContents, AUD_END);
    return code;

}				/*SRXAFS_Symlink */


/*
 * This routine is called exclusively by SRXAFS_Link(), and should be
 * merged into it when possible.
 */
static afs_int32
SAFSS_Link(struct rx_call *acall, struct AFSFid *DirFid, char *Name,
	   struct AFSFid *ExistingFid, struct AFSFetchStatus *OutFidStatus,
	   struct AFSFetchStatus *OutDirStatus, struct AFSVolSync *Sync)
{
    Vnode *parentptr = 0;	/* vnode of input Directory */
    Vnode *targetptr = 0;	/* vnode of the new file */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Volume *volptr = 0;		/* pointer to the volume header */
    Error errorCode = 0;		/* error code */
    DirHandle dir;		/* Handle for dir package I/O */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    FidZero(&dir);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_Link %s,	Did = %u.%u.%u,	Fid = %u.%u.%u, Host %s:%d, Id %d\n",
	     Name, DirFid->Volume, DirFid->Vnode, DirFid->Unique,
	     ExistingFid->Volume, ExistingFid->Vnode, ExistingFid->Unique,
	     inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.Link++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if (DirFid->Volume != ExistingFid->Volume) {
	errorCode = EXDEV;
	goto Bad_Link;
    }
    if (!FileNameOK(Name)) {
	errorCode = EINVAL;
	goto Bad_Link;
    }

    /*
     * Get the vnode and volume for the parent dir along with the caller's
     * rights to it
     */
    if ((errorCode =
	 GetVolumePackage(acall, DirFid, &volptr, &parentptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_Link;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Can the caller insert into the parent directory? */
    if ((errorCode = CheckWriteMode(parentptr, rights, PRSFS_INSERT, client))) {
	goto Bad_Link;
    }

    if (((DirFid->Vnode & 1) && (ExistingFid->Vnode & 1)) || (DirFid->Vnode == ExistingFid->Vnode)) {	/* at present, */
	/* AFS fileservers always have directory vnodes that are odd.   */
	errorCode = EISDIR;
	goto Bad_Link;
    }

    if (CheckLength(volptr, parentptr, -1)) {
	VTakeOffline(volptr);
	errorCode = VSALVAGE;
	goto Bad_Link;
    }

    /* get the file vnode  */
    if ((errorCode =
	 CheckVnode(ExistingFid, &volptr, &targetptr, WRITE_LOCK))) {
	goto Bad_Link;
    }

    if (targetptr->disk.type != vFile) {
	errorCode = EISDIR;
	goto Bad_Link;
    }
    if (targetptr->disk.parent != DirFid->Vnode) {
	errorCode = EXDEV;
	goto Bad_Link;
    }
    if (parentptr->disk.cloned) {
	ViceLog(25, ("Link : calling CopyOnWrite on  target dir\n"));
	if ((errorCode = CopyOnWrite(parentptr, volptr, 0, MAXFSIZE)))
	    goto Bad_Link;	/* disk full error */
    }

    /* add the name to the directory */
    SetDirHandle(&dir, parentptr);
    if ((errorCode = afs_dir_Create(&dir, Name, ExistingFid)))
	goto Bad_Link;
    DFlush();

    /* update the status in the parent vnode */
    /**WARNING** --> disk.author SHOULDN'T be modified???? */
    Update_ParentVnodeStatus(parentptr, volptr, &dir, client->z.ViceId,
			     parentptr->disk.linkCount,
			     client->z.InSameNetwork);

    targetptr->disk.linkCount++;
    targetptr->disk.author = client->z.ViceId;
    targetptr->changed_newTime = 1;	/* Status change of linked-to file */

    /* set up return status */
    GetStatus(targetptr, OutFidStatus, rights, anyrights, parentptr);
    GetStatus(parentptr, OutDirStatus, rights, anyrights, 0);

    /* convert the write locks to read locks before breaking callbacks */
    VVnodeWriteToRead(&errorCode, targetptr);
    assert_vnode_success_or_salvaging(errorCode);
    VVnodeWriteToRead(&errorCode, parentptr);
    assert_vnode_success_or_salvaging(errorCode);

    /* break call back on DirFid */
    BreakCallBack(client->z.host, DirFid, 0);
    /*
     * We also need to break the callback for the file that is hard-linked since part
     * of its status (like linkcount) is changed
     */
    BreakCallBack(client->z.host, ExistingFid, 0);

  Bad_Link:
    /* Write the all modified vnodes (parent, new files) and volume back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr, parentptr,
			   volptr, &client);
    FidZap(&dir);
    ViceLog(2, ("SAFS_Link returns %d\n", errorCode));
    return errorCode;

}				/*SAFSS_Link */


afs_int32
SRXAFS_Link(struct rx_call * acall, struct AFSFid * DirFid, char *Name,
	    struct AFSFid * ExistingFid, struct AFSFetchStatus * OutFidStatus,
	    struct AFSFetchStatus * OutDirStatus, struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_LINK);

    if ((code = CallPreamble(acall, ACTIVECALL, DirFid, &tcon, &thost)))
	goto Bad_Link;

    code =
	SAFSS_Link(acall, DirFid, Name, ExistingFid, OutFidStatus,
		   OutDirStatus, Sync);

  Bad_Link:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, LinkEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, DirFid, AUD_STR, Name,
	       AUD_FID, ExistingFid, AUD_END);
    return code;

}				/*SRXAFS_Link */


/*
 * This routine is called exclusively by SRXAFS_MakeDir(), and should be
 * merged into it when possible.
 */
static afs_int32
SAFSS_MakeDir(struct rx_call *acall, struct AFSFid *DirFid, char *Name,
	      struct AFSStoreStatus *InStatus, struct AFSFid *OutFid,
	      struct AFSFetchStatus *OutFidStatus,
	      struct AFSFetchStatus *OutDirStatus,
	      struct AFSCallBack *CallBack, struct AFSVolSync *Sync)
{
    Vnode *parentptr = 0;	/* vnode of input Directory */
    Vnode *targetptr = 0;	/* vnode of the new file */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Volume *volptr = 0;		/* pointer to the volume header */
    Error errorCode = 0;		/* error code */
    struct acl_accessList *newACL;	/* Access list */
    int newACLSize;		/* Size of access list */
    DirHandle dir;		/* Handle for dir package I/O */
    DirHandle parentdir;	/* Handle for dir package I/O */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    FidZero(&dir);
    FidZero(&parentdir);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_MakeDir %s,  Did = %u.%u.%u, Host %s:%d, Id %d\n", Name,
	     DirFid->Volume, DirFid->Vnode, DirFid->Unique,
	     inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.MakeDir++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if (!FileNameOK(Name)) {
	errorCode = EINVAL;
	goto Bad_MakeDir;
    }

    /*
     * Get the vnode and volume for the parent dir along with the caller's
     * rights to it.
     */
    if ((errorCode =
	 GetVolumePackage(acall, DirFid, &volptr, &parentptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_MakeDir;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Write access to the parent directory? */
#ifdef DIRCREATE_NEED_WRITE
    /*
     * requires w access for the user to create a directory. this
     * closes a loophole in the current security arrangement, since a
     * user with i access only can create a directory and get the
     * implcit a access that goes with dir ownership, and proceed to
     * subvert quota in the volume.
     */
    if ((errorCode = CheckWriteMode(parentptr, rights, PRSFS_INSERT, client))
	|| (errorCode = CheckWriteMode(parentptr, rights, PRSFS_WRITE,
				       client))) {
#else
    if ((errorCode = CheckWriteMode(parentptr, rights, PRSFS_INSERT, client))) {
#endif /* DIRCREATE_NEED_WRITE */
	goto Bad_MakeDir;
    }
#define EMPTYDIRBLOCKS 2
    /* get a new vnode and set it up */
    if ((errorCode =
	 Alloc_NewVnode(parentptr, &parentdir, volptr, &targetptr, Name,
			OutFid, vDirectory, EMPTYDIRBLOCKS))) {
	goto Bad_MakeDir;
    }

    /* Update the status for the parent dir */
    Update_ParentVnodeStatus(parentptr, volptr, &parentdir, client->z.ViceId,
			     parentptr->disk.linkCount + 1,
			     client->z.InSameNetwork);

    /* Point to target's ACL buffer and copy the parent's ACL contents to it */
    opr_Verify((SetAccessList(&targetptr, &volptr, &newACL, &newACLSize,
	                      &parentwhentargetnotdir, NULL, 0))  == 0);
    opr_Assert(parentwhentargetnotdir == 0);
    memcpy((char *)newACL, (char *)VVnodeACL(parentptr), VAclSize(parentptr));

    /* update the status for the target vnode */
    Update_TargetVnodeStatus(targetptr, TVS_MKDIR, client, InStatus,
			     parentptr, volptr, 0, 0);

    /* Actually create the New directory in the directory package */
    SetDirHandle(&dir, targetptr);
    opr_Verify(!(afs_dir_MakeDir(&dir, (afs_int32 *)OutFid,
				 (afs_int32 *)DirFid)));
    DFlush();
    VN_SET_LEN(targetptr, (afs_fsize_t) afs_dir_Length(&dir));

    /* set up return status */
    GetStatus(targetptr, OutFidStatus, rights, anyrights, parentptr);
    GetStatus(parentptr, OutDirStatus, rights, anyrights, NULL);

    /* convert the write lock to a read lock before breaking callbacks */
    VVnodeWriteToRead(&errorCode, parentptr);
    assert_vnode_success_or_salvaging(errorCode);

    /* break call back on DirFid */
    BreakCallBack(client->z.host, DirFid, 0);

    /* Return a callback promise to caller */
    SetCallBackStruct(AddCallBack(client->z.host, OutFid), CallBack);

  Bad_MakeDir:
    /* Write the all modified vnodes (parent, new files) and volume back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr, parentptr,
			   volptr, &client);
    FidZap(&dir);
    FidZap(&parentdir);
    ViceLog(2, ("SAFS_MakeDir returns %d\n", errorCode));
    return errorCode;

}				/*SAFSS_MakeDir */


afs_int32
SRXAFS_MakeDir(struct rx_call * acall, struct AFSFid * DirFid, char *Name,
	       struct AFSStoreStatus * InStatus, struct AFSFid * OutFid,
	       struct AFSFetchStatus * OutFidStatus,
	       struct AFSFetchStatus * OutDirStatus,
	       struct AFSCallBack * CallBack, struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_MAKEDIR);

    if ((code = CallPreamble(acall, ACTIVECALL, DirFid, &tcon, &thost)))
	goto Bad_MakeDir;

    code =
	SAFSS_MakeDir(acall, DirFid, Name, InStatus, OutFid, OutFidStatus,
		      OutDirStatus, CallBack, Sync);

  Bad_MakeDir:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, MakeDirEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, DirFid, AUD_STR, Name,
	       AUD_FID, OutFid, AUD_END);
    return code;

}				/*SRXAFS_MakeDir */


/*
 * This routine is called exclusively by SRXAFS_RemoveDir(), and should be
 * merged into it when possible.
 */
static afs_int32
SAFSS_RemoveDir(struct rx_call *acall, struct AFSFid *DirFid, char *Name,
		struct AFSFetchStatus *OutDirStatus, struct AFSVolSync *Sync)
{
    Vnode *parentptr = 0;	/* vnode of input Directory */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Vnode *targetptr = 0;	/* file to be deleted */
    AFSFid fileFid;		/* area for Fid from the directory */
    Error errorCode = 0;		/* error code */
    DirHandle dir;		/* Handle for dir package I/O */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    FidZero(&dir);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_RemoveDir	%s,  Did = %u.%u.%u, Host %s:%d, Id %d\n", Name,
	     DirFid->Volume, DirFid->Vnode, DirFid->Unique,
	     inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.RemoveDir++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    /*
     * Get the vnode and volume for the parent dir along with the caller's
     * rights to it
     */
    if ((errorCode =
	 GetVolumePackage(acall, DirFid, &volptr, &parentptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_RemoveDir;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Does the caller has delete (&write) access to the parent dir? */
    if ((errorCode = CheckWriteMode(parentptr, rights, PRSFS_DELETE, client))) {
	goto Bad_RemoveDir;
    }

    /* Do the actual delete of the desired (empty) directory, Name */
    if ((errorCode =
	 DeleteTarget(parentptr, volptr, &targetptr, &dir, &fileFid, Name,
		      MustBeDIR))) {
	goto Bad_RemoveDir;
    }

    /* Update the status for the parent dir; link count is also adjusted */
    Update_ParentVnodeStatus(parentptr, volptr, &dir, client->z.ViceId,
			     parentptr->disk.linkCount - 1,
			     client->z.InSameNetwork);

    /* Return to the caller the updated parent dir status */
    GetStatus(parentptr, OutDirStatus, rights, anyrights, NULL);

    /*
     * Note: it is not necessary to break the callback on fileFid, since
     * refcount is now 0, so no one should be able to refer to the dir
     * any longer
     */
    DeleteFileCallBacks(&fileFid);

    /* convert the write lock to a read lock before breaking callbacks */
    VVnodeWriteToRead(&errorCode, parentptr);
    assert_vnode_success_or_salvaging(errorCode);

    /* break call back on DirFid and fileFid */
    BreakCallBack(client->z.host, DirFid, 0);

  Bad_RemoveDir:
    /* Write the all modified vnodes (parent, new files) and volume back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr, parentptr,
			   volptr, &client);
    FidZap(&dir);
    ViceLog(2, ("SAFS_RemoveDir	returns	%d\n", errorCode));
    return errorCode;

}				/*SAFSS_RemoveDir */


afs_int32
SRXAFS_RemoveDir(struct rx_call * acall, struct AFSFid * DirFid, char *Name,
		 struct AFSFetchStatus * OutDirStatus,
		 struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_REMOVEDIR);

    if ((code = CallPreamble(acall, ACTIVECALL, DirFid, &tcon, &thost)))
	goto Bad_RemoveDir;

    code = SAFSS_RemoveDir(acall, DirFid, Name, OutDirStatus, Sync);

  Bad_RemoveDir:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, RemoveDirEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, DirFid, AUD_STR, Name, AUD_END);
    return code;

}				/*SRXAFS_RemoveDir */


/*
 * This routine is called exclusively by SRXAFS_SetLock(), and should be
 * merged into it when possible.
 */
static afs_int32
SAFSS_SetLock(struct rx_call *acall, struct AFSFid *Fid, ViceLockType type,
	      struct AFSVolSync *Sync)
{
    Vnode *targetptr = 0;	/* vnode of input file */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Error errorCode = 0;		/* error code */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    static char *locktype[4] = { "LockRead", "LockWrite", "LockExtend", "LockRelease" };
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    if (type != LockRead && type != LockWrite) {
	errorCode = EINVAL;
	goto Bad_SetLock;
    }
    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_SetLock type = %s Fid = %u.%u.%u, Host %s:%d, Id %d\n",
	     locktype[(int)type], Fid->Volume, Fid->Vnode, Fid->Unique,
	     inet_ntoa(logHostAddr), ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.SetLock++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    /*
     * Get the vnode and volume for the desired file along with the caller's
     * rights to it
     */
    if ((errorCode =
	 GetVolumePackage(acall, Fid, &volptr, &targetptr, DONTCHECK,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_SetLock;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Handle the particular type of set locking, type */
    errorCode = HandleLocking(targetptr, client, rights, type);

  Bad_SetLock:
    /* Write the all modified vnodes (parent, new files) and volume back */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);

    if ((errorCode == VREADONLY) && (type == LockRead))
	errorCode = 0;		/* allow read locks on RO volumes without saving state */

    ViceLog(2, ("SAFS_SetLock returns %d\n", errorCode));
    return (errorCode);

}				/*SAFSS_SetLock */


afs_int32
SRXAFS_OldSetLock(struct rx_call * acall, struct AFSFid * Fid,
		  ViceLockType type, struct AFSVolSync * Sync)
{
    return SRXAFS_SetLock(acall, Fid, type, Sync);
}				/*SRXAFS_OldSetLock */


afs_int32
SRXAFS_SetLock(struct rx_call * acall, struct AFSFid * Fid, ViceLockType type,
	       struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_SETLOCK);

    if ((code = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_SetLock;

    code = SAFSS_SetLock(acall, Fid, type, Sync);

  Bad_SetLock:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, SetLockEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid, AUD_LONG, type, AUD_END);
    return code;
}				/*SRXAFS_SetLock */


/*
 * This routine is called exclusively by SRXAFS_ExtendLock(), and should be
 * merged into it when possible.
 */
static afs_int32
SAFSS_ExtendLock(struct rx_call *acall, struct AFSFid *Fid,
		 struct AFSVolSync *Sync)
{
    Vnode *targetptr = 0;	/* vnode of input file */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Error errorCode = 0;		/* error code */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_ExtendLock Fid = %u.%u.%u, Host %s:%d, Id %d\n", Fid->Volume,
	     Fid->Vnode, Fid->Unique, inet_ntoa(logHostAddr),
	     ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.ExtendLock++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    /*
     * Get the vnode and volume for the desired file along with the caller's
     * rights to it
     */
    if ((errorCode =
	 GetVolumePackage(acall, Fid, &volptr, &targetptr, DONTCHECK,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_ExtendLock;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Handle the actual lock extension */
    errorCode = HandleLocking(targetptr, client, rights, LockExtend);

  Bad_ExtendLock:
    /* Put back file's vnode and volume */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);

    if (errorCode == VREADONLY)	/* presumably, we already granted this lock */
	errorCode = 0;		/* under our generous policy re RO vols */

    ViceLog(2, ("SAFS_ExtendLock returns %d\n", errorCode));
    return (errorCode);

}				/*SAFSS_ExtendLock */


afs_int32
SRXAFS_OldExtendLock(struct rx_call * acall, struct AFSFid * Fid,
		     struct AFSVolSync * Sync)
{
    return SRXAFS_ExtendLock(acall, Fid, Sync);
}				/*SRXAFS_OldExtendLock */


afs_int32
SRXAFS_ExtendLock(struct rx_call * acall, struct AFSFid * Fid,
		  struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_EXTENDLOCK);

    if ((code = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_ExtendLock;

    code = SAFSS_ExtendLock(acall, Fid, Sync);

  Bad_ExtendLock:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, ExtendLockEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid, AUD_END);
    return code;

}				/*SRXAFS_ExtendLock */


/*
 * This routine is called exclusively by SRXAFS_ReleaseLock(), and should be
 * merged into it when possible.
 */
static afs_int32
SAFSS_ReleaseLock(struct rx_call *acall, struct AFSFid *Fid,
		  struct AFSVolSync *Sync)
{
    Vnode *targetptr = 0;	/* vnode of input file */
    Vnode *parentwhentargetnotdir = 0;	/* parent for use in SetAccessList */
    Error errorCode = 0;		/* error code */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client structure */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    struct client *t_client;	/* tmp ptr to client data */
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    struct rx_connection *tcon = rx_ConnectionOf(acall);

    /* Get ptr to client data for user Id for logging */
    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    logHostAddr.s_addr = rxr_HostOf(tcon);
    ViceLog(1,
	    ("SAFS_ReleaseLock Fid = %u.%u.%u, Host %s:%d, Id %d\n", Fid->Volume,
	     Fid->Vnode, Fid->Unique, inet_ntoa(logHostAddr),
	     ntohs(rxr_PortOf(tcon)), t_client->z.ViceId));
    FS_LOCK;
    AFSCallStats.ReleaseLock++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    /*
     * Get the vnode and volume for the desired file along with the caller's
     * rights to it
     */
    if ((errorCode =
	 GetVolumePackage(acall, Fid, &volptr, &targetptr, DONTCHECK,
			  &parentwhentargetnotdir, &client, WRITE_LOCK,
			  &rights, &anyrights))) {
	goto Bad_ReleaseLock;
    }

    /* set volume synchronization information */
    SetVolumeSync(Sync, volptr);

    /* Handle the actual lock release */
    if ((errorCode = HandleLocking(targetptr, client, rights, LockRelease)))
	goto Bad_ReleaseLock;

    /* if no more locks left, a callback would be triggered here */
    if (targetptr->disk.lock.lockCount <= 0) {
	/* convert the write lock to a read lock before breaking callbacks */
	VVnodeWriteToRead(&errorCode, targetptr);
	assert_vnode_success_or_salvaging(errorCode);
	BreakCallBack(client->z.host, Fid, 0);
    }

  Bad_ReleaseLock:
    /* Put back file's vnode and volume */
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);

    if (errorCode == VREADONLY)	/* presumably, we already granted this lock */
	errorCode = 0;		/* under our generous policy re RO vols */

    ViceLog(2, ("SAFS_ReleaseLock returns %d\n", errorCode));
    return (errorCode);

}				/*SAFSS_ReleaseLock */


afs_int32
SRXAFS_OldReleaseLock(struct rx_call * acall, struct AFSFid * Fid,
		      struct AFSVolSync * Sync)
{
    return SRXAFS_ReleaseLock(acall, Fid, Sync);
}				/*SRXAFS_OldReleaseLock */


afs_int32
SRXAFS_ReleaseLock(struct rx_call * acall, struct AFSFid * Fid,
		   struct AFSVolSync * Sync)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_RELEASELOCK);

    if ((code = CallPreamble(acall, ACTIVECALL, Fid, &tcon, &thost)))
	goto Bad_ReleaseLock;

    code = SAFSS_ReleaseLock(acall, Fid, Sync);

  Bad_ReleaseLock:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, ReleaseLockEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_FID, Fid, AUD_END);
    return code;

}				/*SRXAFS_ReleaseLock */


void
SetSystemStats(struct AFSStatistics *stats)
{
    /* Fix this sometime soon.. */
    /* Because hey, it's not like we have a network monitoring protocol... */

    stats->CurrentTime = time(NULL);
}				/*SetSystemStats */

void
SetAFSStats(struct AFSStatistics *stats)
{
    extern afs_int32 StartTime, CurrentConnections;
    int seconds;

    FS_LOCK;
    stats->CurrentMsgNumber = 0;
    stats->OldestMsgNumber = 0;
    stats->StartTime = StartTime;
    stats->CurrentConnections = CurrentConnections;
    stats->TotalAFSCalls = AFSCallStats.TotalCalls;
    stats->TotalFetchs =
	AFSCallStats.FetchData + AFSCallStats.FetchACL +
	AFSCallStats.FetchStatus;
    stats->FetchDatas = AFSCallStats.FetchData;
    stats->FetchedBytes = AFSCallStats.TotalFetchedBytes;
    seconds = AFSCallStats.AccumFetchTime / 1000;
    if (seconds <= 0)
	seconds = 1;
    stats->FetchDataRate = AFSCallStats.TotalFetchedBytes / seconds;
    stats->TotalStores =
	AFSCallStats.StoreData + AFSCallStats.StoreACL +
	AFSCallStats.StoreStatus;
    stats->StoreDatas = AFSCallStats.StoreData;
    stats->StoredBytes = AFSCallStats.TotalStoredBytes;
    seconds = AFSCallStats.AccumStoreTime / 1000;
    if (seconds <= 0)
	seconds = 1;
    stats->StoreDataRate = AFSCallStats.TotalStoredBytes / seconds;
    stats->ProcessSize = opr_procsize();
    FS_UNLOCK;
    h_GetWorkStats((int *)&(stats->WorkStations),
		   (int *)&(stats->ActiveWorkStations), (int *)0,
		   (afs_int32) (time(NULL)) - (15 * 60));

}				/*SetAFSStats */

/* Get disk related information from all AFS partitions. */

void
SetVolumeStats(struct AFSStatistics *stats)
{
    struct DiskPartition64 *part;
    int i = 0;

    for (part = DiskPartitionList; part && i < AFS_MSTATDISKS;
	 part = part->next) {
	stats->Disks[i].TotalBlocks = RoundInt64ToInt31(part->totalUsable);
	stats->Disks[i].BlocksAvailable = RoundInt64ToInt31(part->free);
	memset(stats->Disks[i].Name, 0, AFS_DISKNAMESIZE);
	strncpy(stats->Disks[i].Name, part->name, AFS_DISKNAMESIZE);
	i++;
    }
    while (i < AFS_MSTATDISKS) {
	stats->Disks[i].TotalBlocks = -1;
	i++;
    }
}				/*SetVolumeStats */

afs_int32
SRXAFS_GetStatistics(struct rx_call *acall, struct ViceStatistics *Statistics)
{
    afs_int32 code;
    struct rx_connection *tcon = rx_ConnectionOf(acall);
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_GETSTATISTICS);

    if ((code = CallPreamble(acall, NOTACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_GetStatistics;

    ViceLog(1, ("SAFS_GetStatistics Received\n"));
    FS_LOCK;
    AFSCallStats.GetStatistics++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    memset(Statistics, 0, sizeof(*Statistics));
    SetAFSStats((struct AFSStatistics *)Statistics);
    SetVolumeStats((struct AFSStatistics *)Statistics);
    SetSystemStats((struct AFSStatistics *)Statistics);

  Bad_GetStatistics:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, GetStatisticsEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0, AUD_END);
    return code;
}				/*SRXAFS_GetStatistics */


afs_int32
SRXAFS_GetStatistics64(struct rx_call *acall, afs_int32 statsVersion, ViceStatistics64 *Statistics)
{
    extern afs_int32 StartTime, CurrentConnections;
    int seconds;
    afs_int32 code;
    struct rx_connection *tcon = rx_ConnectionOf(acall);
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_GETSTATISTICS);

    if ((code = CallPreamble(acall, NOTACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_GetStatistics64;

    if (statsVersion != STATS64_VERSION) {
	code = EINVAL;
	goto Bad_GetStatistics64;
    }

    ViceLog(1, ("SAFS_GetStatistics64 Received\n"));
    Statistics->ViceStatistics64_val =
	calloc(statsVersion, sizeof(afs_uint64));
    Statistics->ViceStatistics64_len = statsVersion;
    FS_LOCK;
    AFSCallStats.GetStatistics++, AFSCallStats.TotalCalls++;
    Statistics->ViceStatistics64_val[STATS64_STARTTIME] = StartTime;
    Statistics->ViceStatistics64_val[STATS64_CURRENTCONNECTIONS] =
	CurrentConnections;
    Statistics->ViceStatistics64_val[STATS64_TOTALVICECALLS] =
	AFSCallStats.TotalCalls;
    Statistics->ViceStatistics64_val[STATS64_TOTALFETCHES] =
       AFSCallStats.FetchData + AFSCallStats.FetchACL +
       AFSCallStats.FetchStatus;
    Statistics->ViceStatistics64_val[STATS64_FETCHDATAS] =
	AFSCallStats.FetchData;
    Statistics->ViceStatistics64_val[STATS64_FETCHEDBYTES] =
	AFSCallStats.TotalFetchedBytes;
    seconds = AFSCallStats.AccumFetchTime / 1000;
    if (seconds <= 0)
        seconds = 1;
    Statistics->ViceStatistics64_val[STATS64_FETCHDATARATE] =
	AFSCallStats.TotalFetchedBytes / seconds;
    Statistics->ViceStatistics64_val[STATS64_TOTALSTORES] =
        AFSCallStats.StoreData + AFSCallStats.StoreACL +
        AFSCallStats.StoreStatus;
    Statistics->ViceStatistics64_val[STATS64_STOREDATAS] =
	AFSCallStats.StoreData;
    Statistics->ViceStatistics64_val[STATS64_STOREDBYTES] =
	AFSCallStats.TotalStoredBytes;
    seconds = AFSCallStats.AccumStoreTime / 1000;
    if (seconds <= 0)
        seconds = 1;
    Statistics->ViceStatistics64_val[STATS64_STOREDATARATE] =
	AFSCallStats.TotalStoredBytes / seconds;
    Statistics->ViceStatistics64_val[STATS64_PROCESSSIZE] = opr_procsize();
    FS_UNLOCK;
    h_GetWorkStats64(&(Statistics->ViceStatistics64_val[STATS64_WORKSTATIONS]),
                     &(Statistics->ViceStatistics64_val[STATS64_ACTIVEWORKSTATIONS]),
		     0,
                     (afs_int32) (time(NULL)) - (15 * 60));

    Statistics->ViceStatistics64_val[STATS64_CURRENTTIME] = time(NULL);

  Bad_GetStatistics64:
    code = CallPostamble(tcon, code, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, code);

    osi_auditU(acall, GetStatisticsEvent, code,
	       AUD_ID, t_client ? t_client->z.ViceId : 0, AUD_END);
    return code;
}				/*SRXAFS_GetStatistics */


/*------------------------------------------------------------------------
 * EXPORTED SRXAFS_XStatsVersion
 *
 * Description:
 *	Routine called by the server-side RPC interface to implement
 *	pulling out the xstat version number for the File Server.
 *
 * Arguments:
 *	a_versionP : Ptr to the version number variable to set.
 *
 * Returns:
 *	0 (always)
 *
 * Environment:
 *	Nothing interesting.
 *
 * Side Effects:
 *	As advertised.
 *------------------------------------------------------------------------*/

afs_int32
SRXAFS_XStatsVersion(struct rx_call * a_call, afs_int32 * a_versionP)
{				/*SRXAFS_XStatsVersion */

    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct rx_connection *tcon = rx_ConnectionOf(a_call);
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_XSTATSVERSION);

    *a_versionP = AFS_XSTAT_VERSION;

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, 0);

    osi_auditU(a_call, XStatsVersionEvent, 0,
	       AUD_ID, t_client ? t_client->z.ViceId : 0, AUD_END);
    return (0);
}				/*SRXAFS_XStatsVersion */


/*------------------------------------------------------------------------
 * PRIVATE FillPerfValues
 *
 * Description:
 *	Routine called to fill a regular performance data structure.
 *
 * Arguments:
 *	a_perfP : Ptr to perf structure to fill
 *
 * Returns:
 *	Nothing.
 *
 * Environment:
 *	Various collections need this info, so the guts were put in
 *	this separate routine.
 *
 * Side Effects:
 *	As advertised.
 *------------------------------------------------------------------------*/

static void
FillPerfValues(struct afs_PerfStats *a_perfP)
{				/*FillPerfValues */
    int dir_Buffers;		/*# buffers in use by dir package */
    int dir_Calls;		/*# read calls in dir package */
    int dir_IOs;		/*# I/O ops in dir package */
    struct rx_statistics *stats;

    /*
     * Vnode cache section.
     */
    a_perfP->vcache_L_Entries = VnodeClassInfo[vLarge].cacheSize;
    a_perfP->vcache_L_Allocs = VnodeClassInfo[vLarge].allocs;
    a_perfP->vcache_L_Gets = VnodeClassInfo[vLarge].gets;
    a_perfP->vcache_L_Reads = VnodeClassInfo[vLarge].reads;
    a_perfP->vcache_L_Writes = VnodeClassInfo[vLarge].writes;
    a_perfP->vcache_S_Entries = VnodeClassInfo[vSmall].cacheSize;
    a_perfP->vcache_S_Allocs = VnodeClassInfo[vSmall].allocs;
    a_perfP->vcache_S_Gets = VnodeClassInfo[vSmall].gets;
    a_perfP->vcache_S_Reads = VnodeClassInfo[vSmall].reads;
    a_perfP->vcache_S_Writes = VnodeClassInfo[vSmall].writes;
    a_perfP->vcache_H_Entries = VStats.hdr_cache_size;
    a_perfP->vcache_H_Gets = (int)VStats.hdr_gets;
    a_perfP->vcache_H_Replacements = (int)VStats.hdr_loads;

    /*
     * Directory section.
     */
    DStat(&dir_Buffers, &dir_Calls, &dir_IOs);
    a_perfP->dir_Buffers = (afs_int32) dir_Buffers;
    a_perfP->dir_Calls = (afs_int32) dir_Calls;
    a_perfP->dir_IOs = (afs_int32) dir_IOs;

    /*
     * Rx section.
     */
    stats = rx_GetStatistics();

    a_perfP->rx_packetRequests = (afs_int32) stats->packetRequests;
    a_perfP->rx_noPackets_RcvClass =
	(afs_int32) stats->receivePktAllocFailures;
    a_perfP->rx_noPackets_SendClass =
	(afs_int32) stats->sendPktAllocFailures;
    a_perfP->rx_noPackets_SpecialClass =
	(afs_int32) stats->specialPktAllocFailures;
    a_perfP->rx_socketGreedy = (afs_int32) stats->socketGreedy;
    a_perfP->rx_bogusPacketOnRead = (afs_int32) stats->bogusPacketOnRead;
    a_perfP->rx_bogusHost = (afs_int32) stats->bogusHost;
    a_perfP->rx_noPacketOnRead = (afs_int32) stats->noPacketOnRead;
    a_perfP->rx_noPacketBuffersOnRead =
	(afs_int32) stats->noPacketBuffersOnRead;
    a_perfP->rx_selects = (afs_int32) stats->selects;
    a_perfP->rx_sendSelects = (afs_int32) stats->sendSelects;
    a_perfP->rx_packetsRead_RcvClass =
	(afs_int32) stats->packetsRead[RX_PACKET_CLASS_RECEIVE];
    a_perfP->rx_packetsRead_SendClass =
	(afs_int32) stats->packetsRead[RX_PACKET_CLASS_SEND];
    a_perfP->rx_packetsRead_SpecialClass =
	(afs_int32) stats->packetsRead[RX_PACKET_CLASS_SPECIAL];
    a_perfP->rx_dataPacketsRead = (afs_int32) stats->dataPacketsRead;
    a_perfP->rx_ackPacketsRead = (afs_int32) stats->ackPacketsRead;
    a_perfP->rx_dupPacketsRead = (afs_int32) stats->dupPacketsRead;
    a_perfP->rx_spuriousPacketsRead =
	(afs_int32) stats->spuriousPacketsRead;
    a_perfP->rx_packetsSent_RcvClass =
	(afs_int32) stats->packetsSent[RX_PACKET_CLASS_RECEIVE];
    a_perfP->rx_packetsSent_SendClass =
	(afs_int32) stats->packetsSent[RX_PACKET_CLASS_SEND];
    a_perfP->rx_packetsSent_SpecialClass =
	(afs_int32) stats->packetsSent[RX_PACKET_CLASS_SPECIAL];
    a_perfP->rx_ackPacketsSent = (afs_int32) stats->ackPacketsSent;
    a_perfP->rx_pingPacketsSent = (afs_int32) stats->pingPacketsSent;
    a_perfP->rx_abortPacketsSent = (afs_int32) stats->abortPacketsSent;
    a_perfP->rx_busyPacketsSent = (afs_int32) stats->busyPacketsSent;
    a_perfP->rx_dataPacketsSent = (afs_int32) stats->dataPacketsSent;
    a_perfP->rx_dataPacketsReSent = (afs_int32) stats->dataPacketsReSent;
    a_perfP->rx_dataPacketsPushed = (afs_int32) stats->dataPacketsPushed;
    a_perfP->rx_ignoreAckedPacket = (afs_int32) stats->ignoreAckedPacket;
    a_perfP->rx_totalRtt_Sec = (afs_int32) stats->totalRtt.sec;
    a_perfP->rx_totalRtt_Usec = (afs_int32) stats->totalRtt.usec;
    a_perfP->rx_minRtt_Sec = (afs_int32) stats->minRtt.sec;
    a_perfP->rx_minRtt_Usec = (afs_int32) stats->minRtt.usec;
    a_perfP->rx_maxRtt_Sec = (afs_int32) stats->maxRtt.sec;
    a_perfP->rx_maxRtt_Usec = (afs_int32) stats->maxRtt.usec;
    a_perfP->rx_nRttSamples = (afs_int32) stats->nRttSamples;
    a_perfP->rx_nServerConns = (afs_int32) stats->nServerConns;
    a_perfP->rx_nClientConns = (afs_int32) stats->nClientConns;
    a_perfP->rx_nPeerStructs = (afs_int32) stats->nPeerStructs;
    a_perfP->rx_nCallStructs = (afs_int32) stats->nCallStructs;
    a_perfP->rx_nFreeCallStructs = (afs_int32) stats->nFreeCallStructs;

    a_perfP->host_NumHostEntries = HTs;
    a_perfP->host_HostBlocks = HTBlocks;
    h_GetHostNetStats(&(a_perfP->host_NonDeletedHosts),
		      &(a_perfP->host_HostsInSameNetOrSubnet),
		      &(a_perfP->host_HostsInDiffSubnet),
		      &(a_perfP->host_HostsInDiffNetwork));
    a_perfP->host_NumClients = CEs;
    a_perfP->host_ClientBlocks = CEBlocks;

    a_perfP->sysname_ID = afs_perfstats.sysname_ID;
    a_perfP->rx_nBusies = (afs_int32) stats->nBusies;
    a_perfP->fs_nBusies = afs_perfstats.fs_nBusies;
    rx_FreeStatistics(&stats);
}				/*FillPerfValues */


/*------------------------------------------------------------------------
 * EXPORTED SRXAFS_GetXStats
 *
 * Description:
 *	Routine called by the server-side callback RPC interface to
 *	implement getting the given data collection from the extended
 *	File Server statistics.
 *
 * Arguments:
 *	a_call		    : Ptr to Rx call on which this request came in.
 *	a_clientVersionNum  : Client version number.
 *	a_opCode	    : Desired operation.
 *	a_serverVersionNumP : Ptr to version number to set.
 *	a_timeP		    : Ptr to time value (seconds) to set.
 *	a_dataP		    : Ptr to variable array structure to return
 *			      stuff in.
 *
 * Returns:
 *	0 (always).
 *
 * Environment:
 *	Nothing interesting.
 *
 * Side Effects:
 *	As advertised.
 *------------------------------------------------------------------------*/

afs_int32
SRXAFS_GetXStats(struct rx_call *a_call, afs_int32 a_clientVersionNum,
		 afs_int32 a_collectionNumber, afs_int32 * a_srvVersionNumP,
		 afs_int32 * a_timeP, AFS_CollData * a_dataP)
{				/*SRXAFS_GetXStats */

    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct rx_connection *tcon = rx_ConnectionOf(a_call);
    int code;		/*Return value */
    afs_int32 *dataBuffP;	/*Ptr to data to be returned */
    afs_int32 dataBytes;	/*Bytes in data buffer */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_GETXSTATS);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
    /*
     * Record the time of day and the server version number.
     */
    *a_srvVersionNumP = AFS_XSTAT_VERSION;
    *a_timeP = (afs_int32) time(NULL);

    /*
     * Stuff the appropriate data in there (assume victory)
     */
    code = 0;

    osi_auditU(a_call, GetXStatsEvent,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_INT, a_clientVersionNum,
	       AUD_INT, a_collectionNumber, AUD_END);

#if 0
    /*
     * We're not keeping stats, so just return successfully with
     * no data.
     */
    a_dataP->AFS_CollData_len = 0;
    a_dataP->AFS_CollData_val = NULL;
#endif /* 0 */

    switch (a_collectionNumber) {
    case AFS_XSTATSCOLL_CALL_INFO:
	/*
	 * Pass back all the call-count-related data.
	 *
	 * >>> We are forced to allocate a separate area in which to
	 * >>> put this stuff in by the RPC stub generator, since it
	 * >>> will be freed at the tail end of the server stub code.
	 */
#if 0
	/*
	 * I don't think call-level stats are being collected yet
	 * for the File Server.
	 */
	dataBytes = sizeof(struct afs_Stats);
	dataBuffP = malloc(dataBytes);
	memcpy(dataBuffP, &afs_cmstats, dataBytes);
	a_dataP->AFS_CollData_len = dataBytes >> 2;
	a_dataP->AFS_CollData_val = dataBuffP;
#else
	a_dataP->AFS_CollData_len = 0;
	a_dataP->AFS_CollData_val = NULL;
#endif /* 0 */
	break;

    case AFS_XSTATSCOLL_PERF_INFO:
	/*
	 * Pass back all the regular performance-related data.
	 *
	 * >>> We are forced to allocate a separate area in which to
	 * >>> put this stuff in by the RPC stub generator, since it
	 * >>> will be freed at the tail end of the server stub code.
	 */

	afs_perfstats.numPerfCalls++;
	FillPerfValues(&afs_perfstats);

	/*
	 * Don't overwrite the spares at the end.
	 */

	dataBytes = sizeof(struct afs_PerfStats);
	dataBuffP = malloc(dataBytes);
	memcpy(dataBuffP, &afs_perfstats, dataBytes);
	a_dataP->AFS_CollData_len = dataBytes >> 2;
	a_dataP->AFS_CollData_val = dataBuffP;
	break;

    case AFS_XSTATSCOLL_FULL_PERF_INFO:
	/*
	 * Pass back the full collection of performance-related data.
	 * We have to stuff the basic, overall numbers in, but the
	 * detailed numbers are kept in the structure already.
	 *
	 * >>> We are forced to allocate a separate area in which to
	 * >>> put this stuff in by the RPC stub generator, since it
	 * >>> will be freed at the tail end of the server stub code.
	 */

	afs_perfstats.numPerfCalls++;
	afs_FullPerfStats.overall.numPerfCalls = afs_perfstats.numPerfCalls;
	FillPerfValues(&afs_FullPerfStats.overall);

	/*
	 * Don't overwrite the spares at the end.
	 */

	dataBytes = sizeof(struct fs_stats_FullPerfStats);
	dataBuffP = malloc(dataBytes);
	memcpy(dataBuffP, &afs_FullPerfStats, dataBytes);
	a_dataP->AFS_CollData_len = dataBytes >> 2;
	a_dataP->AFS_CollData_val = dataBuffP;
	break;

    case AFS_XSTATSCOLL_CBSTATS:
	afs_perfstats.numPerfCalls++;

	dataBytes = sizeof(struct cbcounters);
	dataBuffP = malloc(dataBytes);
	{
	    extern struct cbcounters cbstuff;
	    dataBuffP[0]=cbstuff.DeleteFiles;
	    dataBuffP[1]=cbstuff.DeleteCallBacks;
	    dataBuffP[2]=cbstuff.BreakCallBacks;
	    dataBuffP[3]=cbstuff.AddCallBacks;
	    dataBuffP[4]=cbstuff.GotSomeSpaces;
	    dataBuffP[5]=cbstuff.DeleteAllCallBacks;
	    dataBuffP[6]=cbstuff.nFEs;
	    dataBuffP[7]=cbstuff.nCBs;
	    dataBuffP[8]=cbstuff.nblks;
	    dataBuffP[9]=cbstuff.CBsTimedOut;
	    dataBuffP[10]=cbstuff.nbreakers;
	    dataBuffP[11]=cbstuff.GSS1;
	    dataBuffP[12]=cbstuff.GSS2;
	    dataBuffP[13]=cbstuff.GSS3;
	    dataBuffP[14]=cbstuff.GSS4;
	    dataBuffP[15]=cbstuff.GSS5;
	}

	a_dataP->AFS_CollData_len = dataBytes >> 2;
	a_dataP->AFS_CollData_val = dataBuffP;
	break;


    default:
	/*
	 * Illegal collection number.
	 */
	a_dataP->AFS_CollData_len = 0;
	a_dataP->AFS_CollData_val = NULL;
	code = 1;
    }				/*Switch on collection number */

    fsstats_FinishOp(&fsstats, code);

    return (code);

}				/*SRXAFS_GetXStats */


static afs_int32
common_GiveUpCallBacks(struct rx_call *acall, struct AFSCBFids *FidArray,
		       struct AFSCBs *CallBackArray)
{
    afs_int32 errorCode = 0;
    int i;
    struct client *client = 0;
    struct rx_connection *tcon;
    struct host *thost;
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_GIVEUPCALLBACKS);

    if (FidArray)
	ViceLog(1,
		("SAFS_GiveUpCallBacks (Noffids=%d)\n",
		 FidArray->AFSCBFids_len));

    FS_LOCK;
    AFSCallStats.GiveUpCallBacks++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if ((errorCode = CallPreamble(acall, ACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_GiveUpCallBacks;

    if (!FidArray && !CallBackArray) {
	ViceLog(1,
		("SAFS_GiveUpAllCallBacks: host=%x\n",
		 (rx_PeerOf(tcon) ? rx_HostOf(rx_PeerOf(tcon)) : 0)));
	errorCode = GetClient(tcon, &client);
	if (!errorCode) {
	    H_LOCK;
	    DeleteAllCallBacks_r(client->z.host, 1);
	    H_UNLOCK;
	    PutClient(&client);
	}
    } else {
	if (FidArray->AFSCBFids_len < CallBackArray->AFSCBs_len) {
	    ViceLog(0,
		    ("GiveUpCallBacks: #Fids %d < #CallBacks %d, host=%x\n",
		     FidArray->AFSCBFids_len, CallBackArray->AFSCBs_len,
		     (rx_PeerOf(tcon) ? rx_HostOf(rx_PeerOf(tcon)) : 0)));
	    errorCode = EINVAL;
	    goto Bad_GiveUpCallBacks;
	}

	errorCode = GetClient(tcon, &client);
	if (!errorCode) {
	    for (i = 0; i < FidArray->AFSCBFids_len; i++) {
		struct AFSFid *fid = &(FidArray->AFSCBFids_val[i]);
		DeleteCallBack(client->z.host, fid);
	    }
	    PutClient(&client);
	}
    }

  Bad_GiveUpCallBacks:
    errorCode = CallPostamble(tcon, errorCode, thost);

    fsstats_FinishOp(&fsstats, errorCode);

    return errorCode;

}				/*common_GiveUpCallBacks */


afs_int32
SRXAFS_GiveUpCallBacks(struct rx_call * acall, struct AFSCBFids * FidArray,
		       struct AFSCBs * CallBackArray)
{
    return common_GiveUpCallBacks(acall, FidArray, CallBackArray);
}				/*SRXAFS_GiveUpCallBacks */

afs_int32
SRXAFS_GiveUpAllCallBacks(struct rx_call * acall)
{
    return common_GiveUpCallBacks(acall, 0, 0);
}				/*SRXAFS_GiveUpAllCallBacks */


afs_int32
SRXAFS_NGetVolumeInfo(struct rx_call * acall, char *avolid,
		      struct AFSVolumeInfo * avolinfo)
{
    return (VNOVOL);		/* XXX Obsolete routine XXX */

}				/*SRXAFS_NGetVolumeInfo */


/*
 * Dummy routine. Should never be called (the cache manager should only
 * invoke this interface when communicating with a AFS/DFS Protocol
 * Translator).
 */
afs_int32
SRXAFS_Lookup(struct rx_call * call_p, struct AFSFid * afs_dfid_p,
	      char *afs_name_p, struct AFSFid * afs_fid_p,
	      struct AFSFetchStatus * afs_status_p,
	      struct AFSFetchStatus * afs_dir_status_p,
	      struct AFSCallBack * afs_callback_p,
	      struct AFSVolSync * afs_sync_p)
{
    return EINVAL;
}


afs_int32
SRXAFS_GetCapabilities(struct rx_call * acall, Capabilities * capabilities)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    afs_uint32 *dataBuffP;
    afs_int32 dataBytes;

    FS_LOCK;
    AFSCallStats.GetCapabilities++, AFSCallStats.TotalCalls++;
    afs_FullPerfStats.overall.fs_nGetCaps++;
    FS_UNLOCK;
    ViceLog(2, ("SAFS_GetCapabilties\n"));

    if ((code = CallPreamble(acall, NOTACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_GetCaps;

    dataBytes = 1 * sizeof(afs_int32);
    dataBuffP = malloc(dataBytes);
    dataBuffP[0] = VICED_CAPABILITY_ERRORTRANS | VICED_CAPABILITY_WRITELOCKACL;
    dataBuffP[0] |= VICED_CAPABILITY_64BITFILES;
    if (saneacls)
	dataBuffP[0] |= VICED_CAPABILITY_SANEACLS;

    capabilities->Capabilities_len = dataBytes / sizeof(afs_int32);
    capabilities->Capabilities_val = dataBuffP;

  Bad_GetCaps:
    code = CallPostamble(tcon, code, thost);


    return code;
}

/* client is held, but not locked */
static int
FlushClientCPS(struct client *client, void *arock)
{
    ObtainWriteLock(&client->lock);

    client->z.prfail = 2;	/* Means re-eval client's cps */

    if ((client->z.ViceId != ANONYMOUSID) && client->z.CPS.prlist_val) {
	free(client->z.CPS.prlist_val);
	client->z.CPS.prlist_val = NULL;
	client->z.CPS.prlist_len = 0;
    }

    ReleaseWriteLock(&client->lock);

    return 0;
}

afs_int32
SRXAFS_FlushCPS(struct rx_call * acall, struct ViceIds * vids,
		struct IPAddrs * addrs, afs_int32 spare1, afs_int32 * spare2,
		afs_int32 * spare3)
{
    int i;
    afs_int32 nids, naddrs;
    afs_int32 *vd, *addr;
    Error errorCode = 0;		/* return code to caller */

    ViceLog(1, ("SRXAFS_FlushCPS\n"));
    FS_LOCK;
    AFSCallStats.TotalCalls++;
    FS_UNLOCK;

    if (!viced_SuperUser(acall)) {
	errorCode = EPERM;
	goto Bad_FlushCPS;
    }

    nids = vids->ViceIds_len;	/* # of users in here */
    naddrs = addrs->IPAddrs_len;	/* # of hosts in here */
    if (nids < 0 || naddrs < 0) {
	errorCode = EINVAL;
	goto Bad_FlushCPS;
    }

    vd = vids->ViceIds_val;
    for (i = 0; i < nids; i++, vd++) {
	if (!*vd)
	    continue;
	h_EnumerateClients(*vd, FlushClientCPS, NULL);
    }

    addr = addrs->IPAddrs_val;
    for (i = 0; i < naddrs; i++, addr++) {
	if (*addr)
	    h_flushhostcps(*addr, htons(7001));
    }

  Bad_FlushCPS:
    ViceLog(2, ("SAFS_FlushCPS	returns	%d\n", errorCode));
    return errorCode;
}				/*SRXAFS_FlushCPS */

/* worthless hack to let CS keep running ancient software */
static int
afs_vtoi(char *aname)
{
    afs_int32 temp;
    int tc;

    temp = 0;
    while ((tc = *aname++)) {
	if (tc > '9' || tc < '0')
	    return 0;		/* invalid name */
	temp *= 10;
	temp += tc - '0';
    }
    return temp;
}

/*
 * may get name or #, but must handle all weird cases (recognize readonly
 * or backup volumes by name or #
 */
static afs_int32
CopyVolumeEntry(char *aname, struct vldbentry *ave,
		struct VolumeInfo *av)
{
    int i, j, vol;
    afs_int32 mask, whichType;
    afs_uint32 *serverHost, *typePtr;

    /* figure out what type we want if by name */
    i = strlen(aname);
    if (i >= 8 && strcmp(aname + i - 7, ".backup") == 0)
	whichType = BACKVOL;
    else if (i >= 10 && strcmp(aname + i - 9, ".readonly") == 0)
	whichType = ROVOL;
    else
	whichType = RWVOL;

    vol = afs_vtoi(aname);
    if (vol == 0)
	vol = ave->volumeId[whichType];

    /*
     * Now vol has volume # we're interested in.  Next, figure out the type
     * of the volume by looking finding it in the vldb entry
     */
    if ((ave->flags & VLF_RWEXISTS) && vol == ave->volumeId[RWVOL]) {
	mask = VLSF_RWVOL;
	whichType = RWVOL;
    } else if ((ave->flags & VLF_ROEXISTS) && vol == ave->volumeId[ROVOL]) {
	mask = VLSF_ROVOL;
	whichType = ROVOL;
    } else if ((ave->flags & VLF_BACKEXISTS) && vol == ave->volumeId[BACKVOL]) {
	mask = VLSF_RWVOL;	/* backup always is on the same volume as parent */
	whichType = BACKVOL;
    } else
	return EINVAL;		/* error: can't find volume in vldb entry */

    typePtr = &av->Type0;
    serverHost = &av->Server0;
    av->Vid = vol;
    av->Type = whichType;
    av->Type0 = av->Type1 = av->Type2 = av->Type3 = av->Type4 = 0;
    if (ave->flags & VLF_RWEXISTS)
	typePtr[RWVOL] = ave->volumeId[RWVOL];
    if (ave->flags & VLF_ROEXISTS)
	typePtr[ROVOL] = ave->volumeId[ROVOL];
    if (ave->flags & VLF_BACKEXISTS)
	typePtr[BACKVOL] = ave->volumeId[BACKVOL];

    for (i = 0, j = 0; i < ave->nServers; i++) {
	if ((ave->serverFlags[i] & mask) == 0)
	    continue;		/* wrong volume */
	serverHost[j] = ave->serverNumber[i];
	j++;
    }
    av->ServerCount = j;
    if (j < 8)
	serverHost[j++] = 0;	/* bogus 8, but compat only now */
    return 0;
}

static afs_int32
TryLocalVLServer(char *avolid, struct VolumeInfo *avolinfo)
{
    static struct rx_connection *vlConn = 0;
    static int down = 0;
    static afs_int32 lastDownTime = 0;
    struct vldbentry tve;
    struct rx_securityClass *vlSec;
    afs_int32 code;

    FS_LOCK;
    if (!vlConn) {
	vlSec = rxnull_NewClientSecurityObject();
	vlConn =
	    rx_NewConnection(htonl(0x7f000001), htons(7003), 52, vlSec, 0);
	rx_SetConnDeadTime(vlConn, 15);	/* don't wait long */
    }
    FS_UNLOCK;
    if (down && (time(NULL) < lastDownTime + 180)) {
	return 1;		/* failure */
    }

    code = VL_GetEntryByNameO(vlConn, avolid, &tve);
    if (code >= 0)
	down = 0;		/* call worked */
    if (code) {
	if (code < 0) {
	    lastDownTime = time(NULL);	/* last time we tried an RPC */
	    down = 1;
	}
	return code;
    }

    /* otherwise convert to old format vldb entry */
    code = CopyVolumeEntry(avolid, &tve, avolinfo);
    return code;
}






afs_int32
SRXAFS_GetVolumeInfo(struct rx_call * acall, char *avolid,
		     struct VolumeInfo * avolinfo)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_GETVOLUMEINFO);

    if ((code = CallPreamble(acall, ACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_GetVolumeInfo;

    FS_LOCK;
    AFSCallStats.GetVolumeInfo++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    code = TryLocalVLServer(avolid, avolinfo);
    ViceLog(1,
	    ("SAFS_GetVolumeInfo returns %d, Volume %u, type %x, servers %x %x %x %x...\n",
	     code, avolinfo->Vid, avolinfo->Type, avolinfo->Server0,
	     avolinfo->Server1, avolinfo->Server2, avolinfo->Server3));
    avolinfo->Type4 = 0xabcd9999;	/* tell us to try new vldb */

  Bad_GetVolumeInfo:
    code = CallPostamble(tcon, code, thost);

    fsstats_FinishOp(&fsstats, code);

    return code;

}				/*SRXAFS_GetVolumeInfo */


afs_int32
SRXAFS_GetVolumeStatus(struct rx_call * acall, afs_int32 avolid,
		       AFSFetchVolumeStatus * FetchVolStatus, char **Name,
		       char **OfflineMsg, char **Motd)
{
    Vnode *targetptr = 0;	/* vnode of the new file */
    Vnode *parentwhentargetnotdir = 0;	/* vnode of parent */
    Error errorCode = 0;		/* error code */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client entry */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    AFSFid dummyFid;
    struct rx_connection *tcon;
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_GETVOLUMESTATUS);

    ViceLog(1, ("SAFS_GetVolumeStatus for volume %u\n", avolid));
    if ((errorCode = CallPreamble(acall, ACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_GetVolumeStatus;

    FS_LOCK;
    AFSCallStats.GetVolumeStatus++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if (avolid == 0) {
	errorCode = EINVAL;
	goto Bad_GetVolumeStatus;
    }
    dummyFid.Volume = avolid, dummyFid.Vnode =
	(afs_int32) ROOTVNODE, dummyFid.Unique = 1;

    if ((errorCode =
	 GetVolumePackage(acall, &dummyFid, &volptr, &targetptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, READ_LOCK,
			  &rights, &anyrights)))
	goto Bad_GetVolumeStatus;

    (void)RXGetVolumeStatus(FetchVolStatus, Name, OfflineMsg, Motd, volptr);

  Bad_GetVolumeStatus:
    (void)PutVolumePackage(acall, parentwhentargetnotdir, targetptr,
			   (Vnode *) 0, volptr, &client);
    ViceLog(2, ("SAFS_GetVolumeStatus returns %d\n", errorCode));
    /* next is to guarantee out strings exist for stub */
    if (*Name == 0) {
	*Name = malloc(1);
	**Name = 0;
    }
    if (*Motd == 0) {
	*Motd = malloc(1);
	**Motd = 0;
    }
    if (*OfflineMsg == 0) {
	*OfflineMsg = malloc(1);
	**OfflineMsg = 0;
    }
    errorCode = CallPostamble(tcon, errorCode, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, errorCode);

    osi_auditU(acall, GetVolumeStatusEvent, errorCode,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_LONG, avolid, AUD_STR, *Name, AUD_END);
    return (errorCode);

}				/*SRXAFS_GetVolumeStatus */


afs_int32
SRXAFS_SetVolumeStatus(struct rx_call * acall, afs_int32 avolid,
		       AFSStoreVolumeStatus * StoreVolStatus, char *Name,
		       char *OfflineMsg, char *Motd)
{
    Vnode *targetptr = 0;	/* vnode of the new file */
    Vnode *parentwhentargetnotdir = 0;	/* vnode of parent */
    Error errorCode = 0;		/* error code */
    Volume *volptr = 0;		/* pointer to the volume header */
    struct client *client = 0;	/* pointer to client entry */
    afs_int32 rights, anyrights;	/* rights for this and any user */
    AFSFid dummyFid;
    struct rx_connection *tcon = rx_ConnectionOf(acall);
    struct host *thost;
    struct client *t_client = NULL;	/* tmp ptr to client data */
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_SETVOLUMESTATUS);

    ViceLog(1, ("SAFS_SetVolumeStatus for volume %u\n", avolid));
    if ((errorCode = CallPreamble(acall, ACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_SetVolumeStatus;

    FS_LOCK;
    AFSCallStats.SetVolumeStatus++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    if (avolid == 0) {
	errorCode = EINVAL;
	goto Bad_SetVolumeStatus;
    }
    dummyFid.Volume = avolid, dummyFid.Vnode =
	(afs_int32) ROOTVNODE, dummyFid.Unique = 1;

    if ((errorCode =
	 GetVolumePackage(acall, &dummyFid, &volptr, &targetptr, MustBeDIR,
			  &parentwhentargetnotdir, &client, READ_LOCK,
			  &rights, &anyrights)))
	goto Bad_SetVolumeStatus;

    if (!IsWriteAllowed(client)) {
	errorCode = VREADONLY;
	goto Bad_SetVolumeStatus;
    }
    if (VanillaUser(client)) {
	errorCode = EACCES;
	goto Bad_SetVolumeStatus;
    }

    errorCode =
	RXUpdate_VolumeStatus(volptr, StoreVolStatus, Name, OfflineMsg, Motd);

  Bad_SetVolumeStatus:
    PutVolumePackage(acall, parentwhentargetnotdir, targetptr, (Vnode *) 0,
		     volptr, &client);
    ViceLog(2, ("SAFS_SetVolumeStatus returns %d\n", errorCode));
    errorCode = CallPostamble(tcon, errorCode, thost);

    t_client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);

    fsstats_FinishOp(&fsstats, errorCode);

    osi_auditU(acall, SetVolumeStatusEvent, errorCode,
	       AUD_ID, t_client ? t_client->z.ViceId : 0,
	       AUD_LONG, avolid, AUD_STR, Name, AUD_END);
    return (errorCode);
}				/*SRXAFS_SetVolumeStatus */

#define	DEFAULTVOLUME	"root.afs"

afs_int32
SRXAFS_GetRootVolume(struct rx_call * acall, char **VolumeName)
{
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_GETROOTVOLUME);

    return FSERR_EOPNOTSUPP;

#ifdef	notdef
    if (errorCode = CallPreamble(acall, ACTIVECALL, NULL, &tcon, &thost))
	goto Bad_GetRootVolume;
    FS_LOCK;
    AFSCallStats.GetRootVolume++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    temp = malloc(256);
    fd = afs_open(AFSDIR_SERVER_ROOTVOL_FILEPATH, O_RDONLY, 0666);
    if (fd <= 0)
	strcpy(temp, DEFAULTVOLUME);
    else {
#if defined (AFS_AIX_ENV) || defined (AFS_HPUX_ENV)
	lockf(fd, F_LOCK, 0);
#else
	flock(fd, LOCK_EX);
#endif
	len = read(fd, temp, 256);
#if defined (AFS_AIX_ENV) || defined (AFS_HPUX_ENV)
	lockf(fd, F_ULOCK, 0);
#else
	flock(fd, LOCK_UN);
#endif
	close(fd);
	if (temp[len - 1] == '\n')
	    len--;
	temp[len] = '\0';
    }
    *VolumeName = temp;		/* freed by rx server-side stub */

  Bad_GetRootVolume:
    errorCode = CallPostamble(tcon, errorCode, thost);

    fsstats_FinishOp(&fsstats, errorCode);

    return (errorCode);
#endif /* notdef */

}				/*SRXAFS_GetRootVolume */


/* still works because a struct CBS is the same as a struct AFSOpaque */
afs_int32
SRXAFS_CheckToken(struct rx_call * acall, afs_int32 AfsId,
		  struct AFSOpaque * Token)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_CHECKTOKEN);

    if ((code = CallPreamble(acall, ACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_CheckToken;

    code = FSERR_ECONNREFUSED;

  Bad_CheckToken:
    code = CallPostamble(tcon, code, thost);

    fsstats_FinishOp(&fsstats, code);

    return code;

}				/*SRXAFS_CheckToken */

afs_int32
SRXAFS_GetTime(struct rx_call * acall, afs_uint32 * Seconds,
	       afs_uint32 * USeconds)
{
    afs_int32 code;
    struct rx_connection *tcon;
    struct host *thost;
    struct timeval tpl;
    struct fsstats fsstats;

    fsstats_StartOp(&fsstats, FS_STATS_RPCIDX_GETTIME);

    if ((code = CallPreamble(acall, NOTACTIVECALL, NULL, &tcon, &thost)))
	goto Bad_GetTime;

    FS_LOCK;
    AFSCallStats.GetTime++, AFSCallStats.TotalCalls++;
    FS_UNLOCK;
    gettimeofday(&tpl, 0);
    *Seconds = tpl.tv_sec;
    *USeconds = tpl.tv_usec;

    ViceLog(2, ("SAFS_GetTime returns %u, %u\n", *Seconds, *USeconds));

  Bad_GetTime:
    code = CallPostamble(tcon, code, thost);

    fsstats_FinishOp(&fsstats, code);

    return code;

}				/*SRXAFS_GetTime */


/*
 * FetchData_RXStyle
 *
 * Purpose:
 *	Implement a client's data fetch using Rx.
 *
 * Arguments:
 *	volptr		: Ptr to the given volume's info.
 *	targetptr	: Pointer to the vnode involved.
 *	Call		: Ptr to the Rx call involved.
 *	Pos		: Offset within the file.
 *	Len		: Length in bytes to read; this value is bogus!
 *	a_bytesToFetchP	: Set to the number of bytes to be fetched from
 *			  the File Server.
 *	a_bytesFetchedP	: Set to the actual number of bytes fetched from
 *			  the File Server.
 */

static afs_int32
FetchData_RXStyle(Volume * volptr, Vnode * targetptr,
		  struct rx_call * Call, afs_sfsize_t Pos,
		  afs_sfsize_t Len, afs_int32 Int64Mode,
		  afs_sfsize_t * a_bytesToFetchP,
		  afs_sfsize_t * a_bytesFetchedP)
{
    struct timeval StartTime, StopTime;	/* used to calculate file  transfer rates */
    IHandle_t *ihP;
    FdHandle_t *fdP;
#ifndef HAVE_PIOV
    char *tbuffer;
#else /* HAVE_PIOV */
    struct iovec tiov[RX_MAXIOVECS];
    int tnio;
#endif /* HAVE_PIOV */
    afs_sfsize_t tlen;
    afs_int32 optSize;

    /*
     * Initialize the byte count arguments.
     */
    (*a_bytesToFetchP) = 0;
    (*a_bytesFetchedP) = 0;

    ViceLog(25,
	    ("FetchData_RXStyle: Pos %llu, Len %llu\n", (afs_uintmax_t) Pos,
	     (afs_uintmax_t) Len));

    if (!VN_GET_INO(targetptr)) {
	afs_int32 zero = htonl(0);
	/*
	 * This is used for newly created files; we simply send 0 bytes
	 * back to make the cache manager happy...
	 */
	if (Int64Mode)
	    rx_Write(Call, (char *)&zero, sizeof(afs_int32));	/* send 0-length  */
	rx_Write(Call, (char *)&zero, sizeof(afs_int32));	/* send 0-length  */
	return (0);
    }
    gettimeofday(&StartTime, 0);
    ihP = targetptr->handle;
    fdP = IH_OPEN(ihP);
    if (fdP == NULL) {
	VTakeOffline(volptr);
	ViceLog(0, ("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
		    afs_printable_VolumeId_lu(volptr->hashid)));
	return EIO;
    }
    optSize = sendBufSize;
    tlen = FDH_SIZE(fdP);
    ViceLog(25,
	    ("FetchData_RXStyle: file size %llu\n", (afs_uintmax_t) tlen));
    if (tlen < 0) {
	FDH_CLOSE(fdP);
	VTakeOffline(volptr);
	ViceLog(0, ("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
		    afs_printable_VolumeId_lu(volptr->hashid)));
	return EIO;
    }
    if (CheckLength(volptr, targetptr, tlen)) {
	FDH_CLOSE(fdP);
	VTakeOffline(volptr);
	return VSALVAGE;
    }
    if (Pos > tlen) {
	Len = 0;
    }

    if (Pos + Len > tlen) /* get length we should send */
	Len = ((tlen - Pos) < 0) ? 0 : tlen - Pos;

    {
	afs_int32 high, low;
	SplitOffsetOrSize(Len, high, low);
	opr_Assert(Int64Mode || (Len >= 0 && high == 0) || Len < 0);
	if (Int64Mode) {
	    high = htonl(high);
	    rx_Write(Call, (char *)&high, sizeof(afs_int32));	/* High order bits */
	}
	low = htonl(low);
	rx_Write(Call, (char *)&low, sizeof(afs_int32));	/* send length on fetch */
    }
    (*a_bytesToFetchP) = Len;
#ifndef HAVE_PIOV
    tbuffer = AllocSendBuffer();
#endif /* HAVE_PIOV */
    while (Len > 0) {
	size_t wlen;
	ssize_t nBytes;
	if (Len > optSize)
	    wlen = optSize;
	else
	    wlen = Len;
#ifndef HAVE_PIOV
	nBytes = FDH_PREAD(fdP, tbuffer, wlen, Pos);
	if (nBytes != wlen) {
	    FDH_CLOSE(fdP);
	    FreeSendBuffer((struct afs_buffer *)tbuffer);
	    VTakeOffline(volptr);
	    ViceLog(0, ("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
			afs_printable_VolumeId_lu(volptr->hashid)));
	    return EIO;
	}
	nBytes = rx_Write(Call, tbuffer, wlen);
#else /* HAVE_PIOV */
	nBytes = rx_WritevAlloc(Call, tiov, &tnio, RX_MAXIOVECS, wlen);
	if (nBytes <= 0) {
	    FDH_CLOSE(fdP);
	    return EIO;
	}
	wlen = nBytes;
	nBytes = FDH_PREADV(fdP, tiov, tnio, Pos);
	if (nBytes != wlen) {
	    FDH_CLOSE(fdP);
	    VTakeOffline(volptr);
	    ViceLog(0, ("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
			afs_printable_VolumeId_lu(volptr->hashid)));
	    return EIO;
	}
	nBytes = rx_Writev(Call, tiov, tnio, wlen);
#endif /* HAVE_PIOV */
	Pos += wlen;
	/*
	 * Bump the number of bytes actually sent by the number from this
	 * latest iteration
	 */
	(*a_bytesFetchedP) += nBytes;
	if (nBytes != wlen) {
	    afs_int32 err;
	    FDH_CLOSE(fdP);
#ifndef HAVE_PIOV
	    FreeSendBuffer((struct afs_buffer *)tbuffer);
#endif /* HAVE_PIOV */
	    err = VIsGoingOffline(volptr);
	    if (err) {
		return err;
	    }
	    return -31;
	}
	Len -= wlen;
    }
#ifndef HAVE_PIOV
    FreeSendBuffer((struct afs_buffer *)tbuffer);
#endif /* HAVE_PIOV */
    FDH_CLOSE(fdP);
    gettimeofday(&StopTime, 0);

    /* Adjust all Fetch Data related stats */
    FS_LOCK;
    if (AFSCallStats.TotalFetchedBytes > 2000000000)	/* Reset if over 2 billion */
	AFSCallStats.TotalFetchedBytes = AFSCallStats.AccumFetchTime = 0;
    AFSCallStats.AccumFetchTime +=
	((StopTime.tv_sec - StartTime.tv_sec) * 1000) +
	((StopTime.tv_usec - StartTime.tv_usec) / 1000);
    {
	afs_fsize_t targLen;
	VN_GET_LEN(targLen, targetptr);
	AFSCallStats.TotalFetchedBytes += targLen;
	AFSCallStats.FetchSize1++;
	if (targLen < SIZE2)
	    AFSCallStats.FetchSize2++;
	else if (targLen < SIZE3)
	    AFSCallStats.FetchSize3++;
	else if (targLen < SIZE4)
	    AFSCallStats.FetchSize4++;
	else
	    AFSCallStats.FetchSize5++;
    }
    FS_UNLOCK;
    return (0);

}				/*FetchData_RXStyle */

static int
GetLinkCountAndSize(Volume * vp, FdHandle_t * fdP, int *lc,
		    afs_sfsize_t * size)
{
#ifdef AFS_NAMEI_ENV
    FdHandle_t *lhp;
    lhp = IH_OPEN(V_linkHandle(vp));
    if (!lhp)
	return EIO;
    *lc = namei_GetLinkCount(lhp, fdP->fd_ih->ih_ino, 0, 0, 1);
    FDH_CLOSE(lhp);
    if (*lc < 0)
	return -1;
    *size = OS_SIZE(fdP->fd_fd);
    return (*size == -1) ? -1 : 0;
#else
    struct afs_stat status;

    if (afs_fstat(fdP->fd_fd, &status) < 0) {
	return -1;
    }

    *lc = GetLinkCount(vp, &status);
    *size = status.st_size;
    return 0;
#endif
}

/*
 * StoreData_RXStyle
 *
 * Purpose:
 *	Implement a client's data store using Rx.
 *
 * Arguments:
 *	volptr		: Ptr to the given volume's info.
 *	targetptr	: Pointer to the vnode involved.
 *	Call		: Ptr to the Rx call involved.
 *	Pos		: Offset within the file.
 *	Len		: Length in bytes to store; this value is bogus!
 *	a_bytesToStoreP	: Set to the number of bytes to be stored to
 *			  the File Server.
 *	a_bytesStoredP	: Set to the actual number of bytes stored to
 *			  the File Server.
 */
afs_int32
StoreData_RXStyle(Volume * volptr, Vnode * targetptr, struct AFSFid * Fid,
		  struct client * client, struct rx_call * Call,
		  afs_fsize_t Pos, afs_fsize_t Length, afs_fsize_t FileLength,
		  int sync,
		  afs_sfsize_t * a_bytesToStoreP,
		  afs_sfsize_t * a_bytesStoredP)
{
    afs_sfsize_t bytesTransfered;	/* number of bytes actually transfered */
    Error errorCode = 0;		/* Returned error code to caller */
#ifndef HAVE_PIOV
    char *tbuffer;	/* data copying buffer */
#else /* HAVE_PIOV */
    struct iovec tiov[RX_MAXIOVECS];	/* no data copying with iovec */
    int tnio;			/* temp for iovec size */
#endif /* HAVE_PIOV */
    afs_sfsize_t tlen;		/* temp for xfr length */
    Inode tinode;		/* inode for I/O */
    afs_int32 optSize;		/* optimal transfer size */
    afs_sfsize_t DataLength = 0;	/* size of inode */
    afs_sfsize_t TruncatedLength;	/* size after ftruncate */
    afs_fsize_t NewLength;	/* size after this store completes */
    afs_sfsize_t adjustSize;	/* bytes to call VAdjust... with */
    int linkCount = 0;		/* link count on inode */
    ssize_t nBytes;
    FdHandle_t *fdP;
    struct in_addr logHostAddr;	/* host ip holder for inet_ntoa */
    afs_ino_str_t stmp;

    /*
     * Initialize the byte count arguments.
     */
    (*a_bytesToStoreP) = 0;
    (*a_bytesStoredP) = 0;

    /*
     * We break the callbacks here so that the following signal will not
     * leave a window.
     */
    BreakCallBack(client->z.host, Fid, 0);

    if (Pos == -1 || VN_GET_INO(targetptr) == 0) {
	/* the inode should have been created in Alloc_NewVnode */
	logHostAddr.s_addr = rxr_HostOf(rx_ConnectionOf(Call));
	ViceLog(0,
		("StoreData_RXStyle : Inode non-existent Fid = %u.%u.%u, inode = %llu, Pos %llu Host %s:%d\n",
		 Fid->Volume, Fid->Vnode, Fid->Unique,
		 (afs_uintmax_t) VN_GET_INO(targetptr), (afs_uintmax_t) Pos,
		 inet_ntoa(logHostAddr), ntohs(rxr_PortOf(rx_ConnectionOf(Call)))));
	return ENOENT;		/* is this proper error code? */
    } else {
	/*
	 * See if the file has several links (from other volumes).  If it
	 * does, then we have to make a copy before changing it to avoid
	 *changing read-only clones of this dude
	 */
	ViceLog(25,
		("StoreData_RXStyle : Opening inode %s\n",
		 PrintInode(stmp, VN_GET_INO(targetptr))));
	fdP = IH_OPEN(targetptr->handle);
	if (fdP == NULL)
	    return ENOENT;
	if (GetLinkCountAndSize(volptr, fdP, &linkCount, &DataLength) < 0) {
	    FDH_CLOSE(fdP);
	    VTakeOffline(volptr);
	    ViceLog(0, ("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
			afs_printable_VolumeId_lu(volptr->hashid)));
	    return EIO;
	}
	if (CheckLength(volptr, targetptr, DataLength)) {
	    FDH_CLOSE(fdP);
	    VTakeOffline(volptr);
	    return VSALVAGE;
	}

	if (linkCount != 1) {
	    afs_fsize_t size;
	    ViceLog(25,
		    ("StoreData_RXStyle : inode %s has more than onelink\n",
		     PrintInode(stmp, VN_GET_INO(targetptr))));
	    /* other volumes share this data, better copy it first */

	    /* Adjust the disk block count by the creation of the new inode.
	     * We call the special VDiskUsage so we don't adjust the volume's
	     * quota since we don't want to penalyze the user for afs's internal
	     * mechanisms (i.e. copy on write overhead.) Also the right size
	     * of the disk will be recorded...
	     */
	    FDH_CLOSE(fdP);
	    VN_GET_LEN(size, targetptr);
	    volptr->partition->flags &= ~PART_DONTUPDATE;
	    VSetPartitionDiskUsage(volptr->partition);
	    volptr->partition->flags |= PART_DONTUPDATE;
	    if ((errorCode = VDiskUsage(volptr, nBlocks(size)))) {
		volptr->partition->flags &= ~PART_DONTUPDATE;
		return (errorCode);
	    }

	    ViceLog(25, ("StoreData : calling CopyOnWrite on  target dir\n"));
	    if ((errorCode = CopyOnWrite(targetptr, volptr, 0, MAXFSIZE))) {
		ViceLog(25, ("StoreData : CopyOnWrite failed\n"));
		volptr->partition->flags &= ~PART_DONTUPDATE;
		return (errorCode);
	    }
	    volptr->partition->flags &= ~PART_DONTUPDATE;
	    VSetPartitionDiskUsage(volptr->partition);
	    fdP = IH_OPEN(targetptr->handle);
	    if (fdP == NULL) {
		ViceLog(25,
			("StoreData : Reopen after CopyOnWrite failed\n"));
		return ENOENT;
	    }
	}
	tinode = VN_GET_INO(targetptr);
    }
    if (!VALID_INO(tinode)) {
	VTakeOffline(volptr);
	ViceLog(0,("Volume %" AFS_VOLID_FMT " now offline, must be salvaged.\n",
		   afs_printable_VolumeId_lu(volptr->hashid)));
	return EIO;
    }

    /* compute new file length */
    NewLength = DataLength;
    if (FileLength < NewLength)
	/* simulate truncate */
	NewLength = FileLength;
    TruncatedLength = NewLength;	/* remember length after possible ftruncate */
    if (Pos + Length > NewLength)
	NewLength = Pos + Length;	/* and write */

    /* adjust the disk block count by the difference in the files */
    {
	afs_fsize_t targSize;
	VN_GET_LEN(targSize, targetptr);
	adjustSize = nBlocks(NewLength) - nBlocks(targSize);
    }
    if ((errorCode =
	 AdjustDiskUsage(volptr, adjustSize,
			 adjustSize - SpareComp(volptr)))) {
	FDH_CLOSE(fdP);
	return (errorCode);
    }

    /* can signal cache manager to proceed from close now */
    /* this bit means that the locks are set and protections are OK */
    rx_SetLocalStatus(Call, 1);

    optSize = sendBufSize;
    ViceLog(25,
	    ("StoreData_RXStyle: Pos %llu, DataLength %llu, FileLength %llu, Length %llu\n",
	     (afs_uintmax_t) Pos, (afs_uintmax_t) DataLength,
	     (afs_uintmax_t) FileLength, (afs_uintmax_t) Length));

    bytesTransfered = 0;
#ifndef HAVE_PIOV
    tbuffer = AllocSendBuffer();
#endif /* HAVE_PIOV */
    /* truncate the file iff it needs it (ftruncate is slow even when its a noop) */
    if (FileLength < DataLength) {
	errorCode = FDH_TRUNC(fdP, FileLength);
	if (errorCode)
	    goto done;
    }

    /* if length == 0, the loop below isn't going to do anything, including
     * extend the length of the inode, which it must do, since the file system
     * assumes that the inode length == vnode's file length.  So, we extend
     * the file length manually if need be.  Note that if file is bigger than
     * Pos+(Length==0), we dont' have to do anything, and certainly shouldn't
     * do what we're going to do below.
     */
    if (Length == 0 && Pos > TruncatedLength) {
	/* Set the file's length; we've already done an lseek to the right
	 * spot above.
	 */
	tlen = 0; /* Just a source of data for the write */
	nBytes = FDH_PWRITE(fdP, &tlen, 1, Pos);
	if (nBytes != 1) {
	    errorCode = -1;
	    goto done;
	}
	errorCode = FDH_TRUNC(fdP, Pos);
    } else {
	/* have some data to copy */
	(*a_bytesToStoreP) = Length;
	while (1) {
	    int rlen;
	    if (bytesTransfered >= Length) {
		errorCode = 0;
		break;
	    }
	    tlen = Length - bytesTransfered;	/* how much more to do */
	    if (tlen > optSize)
		rlen = optSize;	/* bound by buffer size */
	    else
		rlen = (int)tlen;
#ifndef HAVE_PIOV
	    errorCode = rx_Read(Call, tbuffer, rlen);
#else /* HAVE_PIOV */
	    errorCode = rx_Readv(Call, tiov, &tnio, RX_MAXIOVECS, rlen);
#endif /* HAVE_PIOV */
	    if (errorCode <= 0) {
		errorCode = -32;
		break;
	    }
	    (*a_bytesStoredP) += errorCode;
	    rlen = errorCode;
#ifndef HAVE_PIOV
	    nBytes = FDH_PWRITE(fdP, tbuffer, rlen, Pos);
#else /* HAVE_PIOV */
	    nBytes = FDH_PWRITEV(fdP, tiov, tnio, Pos);
#endif /* HAVE_PIOV */
	    if (nBytes != rlen) {
		errorCode = VDISKFULL;
		break;
	    }
	    bytesTransfered += rlen;
	    Pos += rlen;
	}
    }
  done:
#ifndef HAVE_PIOV
    FreeSendBuffer((struct afs_buffer *)tbuffer);
#endif /* HAVE_PIOV */
    if (sync) {
	(void) FDH_SYNC(fdP);
    }
    if (errorCode) {
	Error tmp_errorCode = 0;
	afs_sfsize_t nfSize = FDH_SIZE(fdP);
	opr_Assert(nfSize >= 0);
	/* something went wrong: adjust size and return */
	VN_SET_LEN(targetptr, nfSize);	/* set new file size. */
	/* changed_newTime is tested in StoreData to detemine if we
	 * need to update the target vnode.
	 */
	targetptr->changed_newTime = 1;
	FDH_CLOSE(fdP);
	/* set disk usage to be correct */
	VAdjustDiskUsage(&tmp_errorCode, volptr,
			 (afs_sfsize_t) (nBlocks(nfSize) -
					 nBlocks(NewLength)), 0);
	if (tmp_errorCode) {
	    errorCode = tmp_errorCode;
	}
	return errorCode;
    }
    FDH_CLOSE(fdP);

    VN_SET_LEN(targetptr, NewLength);

    /* Update all StoreData related stats */
    FS_LOCK;
    if (AFSCallStats.TotalStoredBytes > 2000000000)	/* reset if over 2 billion */
	AFSCallStats.TotalStoredBytes = AFSCallStats.AccumStoreTime = 0;
    AFSCallStats.StoreSize1++;	/* Piggybacked data */
    {
	afs_fsize_t targLen;
	VN_GET_LEN(targLen, targetptr);
	if (targLen < SIZE2)
	    AFSCallStats.StoreSize2++;
	else if (targLen < SIZE3)
	    AFSCallStats.StoreSize3++;
	else if (targLen < SIZE4)
	    AFSCallStats.StoreSize4++;
	else
	    AFSCallStats.StoreSize5++;
    }
    FS_UNLOCK;
    return (errorCode);

}				/*StoreData_RXStyle */

static int sys2et[512];

void
init_sys_error_to_et(void)
{
    memset(&sys2et, 0, sizeof(sys2et));
    sys2et[EPERM] = UAEPERM;
    sys2et[ENOENT] = UAENOENT;
    sys2et[ESRCH] = UAESRCH;
    sys2et[EINTR] = UAEINTR;
    sys2et[EIO] = UAEIO;
    sys2et[ENXIO] = UAENXIO;
    sys2et[E2BIG] = UAE2BIG;
    sys2et[ENOEXEC] = UAENOEXEC;
    sys2et[EBADF] = UAEBADF;
    sys2et[ECHILD] = UAECHILD;
    sys2et[EAGAIN] = UAEAGAIN;
    sys2et[ENOMEM] = UAENOMEM;
    sys2et[EACCES] = UAEACCES;
    sys2et[EFAULT] = UAEFAULT;
    sys2et[ENOTBLK] = UAENOTBLK;
    sys2et[EBUSY] = UAEBUSY;
    sys2et[EEXIST] = UAEEXIST;
    sys2et[EXDEV] = UAEXDEV;
    sys2et[ENODEV] = UAENODEV;
    sys2et[ENOTDIR] = UAENOTDIR;
    sys2et[EISDIR] = UAEISDIR;
    sys2et[EINVAL] = UAEINVAL;
    sys2et[ENFILE] = UAENFILE;
    sys2et[EMFILE] = UAEMFILE;
    sys2et[ENOTTY] = UAENOTTY;
    sys2et[ETXTBSY] = UAETXTBSY;
    sys2et[EFBIG] = UAEFBIG;
    sys2et[ENOSPC] = UAENOSPC;
    sys2et[ESPIPE] = UAESPIPE;
    sys2et[EROFS] = UAEROFS;
    sys2et[EMLINK] = UAEMLINK;
    sys2et[EPIPE] = UAEPIPE;
    sys2et[EDOM] = UAEDOM;
    sys2et[ERANGE] = UAERANGE;
    sys2et[EDEADLK] = UAEDEADLK;
    sys2et[ENAMETOOLONG] = UAENAMETOOLONG;
    sys2et[ENOLCK] = UAENOLCK;
    sys2et[ENOSYS] = UAENOSYS;
#if (ENOTEMPTY != EEXIST)
    sys2et[ENOTEMPTY] = UAENOTEMPTY;
#endif
    sys2et[ELOOP] = UAELOOP;
#if (EWOULDBLOCK != EAGAIN)
    sys2et[EWOULDBLOCK] = UAEWOULDBLOCK;
#endif
    sys2et[ENOMSG] = UAENOMSG;
    sys2et[EIDRM] = UAEIDRM;
    sys2et[ECHRNG] = UAECHRNG;
    sys2et[EL2NSYNC] = UAEL2NSYNC;
    sys2et[EL3HLT] = UAEL3HLT;
    sys2et[EL3RST] = UAEL3RST;
    sys2et[ELNRNG] = UAELNRNG;
    sys2et[EUNATCH] = UAEUNATCH;
    sys2et[ENOCSI] = UAENOCSI;
    sys2et[EL2HLT] = UAEL2HLT;
    sys2et[EBADE] = UAEBADE;
    sys2et[EBADR] = UAEBADR;
    sys2et[EXFULL] = UAEXFULL;
    sys2et[ENOANO] = UAENOANO;
    sys2et[EBADRQC] = UAEBADRQC;
    sys2et[EBADSLT] = UAEBADSLT;
    sys2et[EDEADLK] = UAEDEADLK;
    sys2et[EBFONT] = UAEBFONT;
    sys2et[ENOSTR] = UAENOSTR;
    sys2et[ENODATA] = UAENODATA;
    sys2et[ETIME] = UAETIME;
    sys2et[ENOSR] = UAENOSR;
    sys2et[ENONET] = UAENONET;
    sys2et[ENOPKG] = UAENOPKG;
    sys2et[EREMOTE] = UAEREMOTE;
    sys2et[ENOLINK] = UAENOLINK;
    sys2et[EADV] = UAEADV;
    sys2et[ESRMNT] = UAESRMNT;
    sys2et[ECOMM] = UAECOMM;
    sys2et[EPROTO] = UAEPROTO;
    sys2et[EMULTIHOP] = UAEMULTIHOP;
    sys2et[EDOTDOT] = UAEDOTDOT;
    sys2et[EBADMSG] = UAEBADMSG;
    sys2et[EOVERFLOW] = UAEOVERFLOW;
    sys2et[ENOTUNIQ] = UAENOTUNIQ;
    sys2et[EBADFD] = UAEBADFD;
    sys2et[EREMCHG] = UAEREMCHG;
    sys2et[ELIBACC] = UAELIBACC;
    sys2et[ELIBBAD] = UAELIBBAD;
    sys2et[ELIBSCN] = UAELIBSCN;
    sys2et[ELIBMAX] = UAELIBMAX;
    sys2et[ELIBEXEC] = UAELIBEXEC;
    sys2et[EILSEQ] = UAEILSEQ;
    sys2et[ERESTART] = UAERESTART;
    sys2et[ESTRPIPE] = UAESTRPIPE;
    sys2et[EUSERS] = UAEUSERS;
    sys2et[ENOTSOCK] = UAENOTSOCK;
    sys2et[EDESTADDRREQ] = UAEDESTADDRREQ;
    sys2et[EMSGSIZE] = UAEMSGSIZE;
    sys2et[EPROTOTYPE] = UAEPROTOTYPE;
    sys2et[ENOPROTOOPT] = UAENOPROTOOPT;
    sys2et[EPROTONOSUPPORT] = UAEPROTONOSUPPORT;
    sys2et[ESOCKTNOSUPPORT] = UAESOCKTNOSUPPORT;
    sys2et[EOPNOTSUPP] = UAEOPNOTSUPP;
    sys2et[EPFNOSUPPORT] = UAEPFNOSUPPORT;
    sys2et[EAFNOSUPPORT] = UAEAFNOSUPPORT;
    sys2et[EADDRINUSE] = UAEADDRINUSE;
    sys2et[EADDRNOTAVAIL] = UAEADDRNOTAVAIL;
    sys2et[ENETDOWN] = UAENETDOWN;
    sys2et[ENETUNREACH] = UAENETUNREACH;
    sys2et[ENETRESET] = UAENETRESET;
    sys2et[ECONNABORTED] = UAECONNABORTED;
    sys2et[ECONNRESET] = UAECONNRESET;
    sys2et[ENOBUFS] = UAENOBUFS;
    sys2et[EISCONN] = UAEISCONN;
    sys2et[ENOTCONN] = UAENOTCONN;
    sys2et[ESHUTDOWN] = UAESHUTDOWN;
    sys2et[ETOOMANYREFS] = UAETOOMANYREFS;
    sys2et[ETIMEDOUT] = UAETIMEDOUT;
    sys2et[ECONNREFUSED] = UAECONNREFUSED;
    sys2et[EHOSTDOWN] = UAEHOSTDOWN;
    sys2et[EHOSTUNREACH] = UAEHOSTUNREACH;
    sys2et[EALREADY] = UAEALREADY;
    sys2et[EINPROGRESS] = UAEINPROGRESS;
    sys2et[ESTALE] = UAESTALE;
    sys2et[EUCLEAN] = UAEUCLEAN;
    sys2et[ENOTNAM] = UAENOTNAM;
    sys2et[ENAVAIL] = UAENAVAIL;
    sys2et[EISNAM] = UAEISNAM;
    sys2et[EREMOTEIO] = UAEREMOTEIO;
    sys2et[EDQUOT] = UAEDQUOT;
    sys2et[ENOMEDIUM] = UAENOMEDIUM;
    sys2et[EMEDIUMTYPE] = UAEMEDIUMTYPE;

    sys2et[EIO] = UAEIO;
}

/* NOTE:  2006-03-01
 *  SRXAFS_CallBackRxConnAddr should be re-written as follows:
 *  - pass back the connection, client, and host from CallPreamble
 *  - keep a ref on the client, which we don't now
 *  - keep a hold on the host, which we already do
 *  - pass the connection, client, and host down into SAFSS_*, and use
 *    them instead of independently discovering them via rx_ConnectionOf
 *    (safe) and rx_GetSpecific (not so safe)
 *  The idea being that we decide what client and host we're going to use
 *  when CallPreamble is called, and stay consistent throughout the call.
 *  This change is too invasive for 1.4.1 but should be made in 1.5.x.
 */

afs_int32
SRXAFS_CallBackRxConnAddr (struct rx_call * acall, afs_int32 *addr)
{
    Error errorCode = 0;
    struct rx_connection *tcon;
    struct host *tcallhost;
#ifdef __EXPERIMENTAL_CALLBACK_CONN_MOVING
    struct host *thost;
    struct client *tclient;
    static struct rx_securityClass *sc = 0;
    int i,j;
    struct rx_connection *conn;
    afs_int32 viceid = -1;
#endif

    if ((errorCode = CallPreamble(acall, ACTIVECALL, NULL, &tcon, &tcallhost)))
	    goto Bad_CallBackRxConnAddr1;

#ifndef __EXPERIMENTAL_CALLBACK_CONN_MOVING
    errorCode = 1;
#else
    H_LOCK;
    tclient = h_FindClient_r(tcon, &viceid);
    if (!tclient) {
	errorCode = VBUSY;
	LogClientError("Client host too busy (CallBackRxConnAddr)", tcon, viceid, NULL);
	goto Bad_CallBackRxConnAddr;
    }
    thost = tclient->z.host;

    /* nothing more can be done */
    if ( !thost->z.interface )
	goto Bad_CallBackRxConnAddr;

    /* the only address is the primary interface */
    /* can't change when there's only 1 address, anyway */
    if ( thost->z.interface->numberOfInterfaces <= 1 )
	goto Bad_CallBackRxConnAddr;

    /* initialise a security object only once */
    if ( !sc )
	sc = (struct rx_securityClass *) rxnull_NewClientSecurityObject();

    for ( i=0; i < thost->z.interface->numberOfInterfaces; i++)
    {
	    if ( *addr == thost->z.interface->addr[i] ) {
		    break;
	    }
    }

    if ( *addr != thost->z.interface->addr[i] )
	goto Bad_CallBackRxConnAddr;

    conn = rx_NewConnection (thost->z.interface->addr[i],
			     thost->z.port, 1, sc, 0);
    rx_SetConnDeadTime(conn, 2);
    rx_SetConnHardDeadTime(conn, AFS_HARDDEADTIME);
    H_UNLOCK;
    errorCode = RXAFSCB_Probe(conn);
    H_LOCK;
    if (!errorCode) {
	if ( thost->z.callback_rxcon )
	    rx_DestroyConnection(thost->z.callback_rxcon);
	thost->z.callback_rxcon = conn;
	thost->z.host           = addr;
	rx_SetConnDeadTime(thost->z.callback_rxcon, 50);
	rx_SetConnHardDeadTime(thost->z.callback_rxcon, AFS_HARDDEADTIME);
	h_ReleaseClient_r(tclient);
	/* The hold on thost will be released by CallPostamble */
	H_UNLOCK;
	errorCode = CallPostamble(tcon, errorCode, tcallhost);
	return errorCode;
    } else {
	rx_DestroyConnection(conn);
    }
  Bad_CallBackRxConnAddr:
    h_ReleaseClient_r(tclient);
    /* The hold on thost will be released by CallPostamble */
    H_UNLOCK;
#endif

    errorCode = CallPostamble(tcon, errorCode, tcallhost);
 Bad_CallBackRxConnAddr1:
    return errorCode;          /* failure */
}

afs_int32
sys_error_to_et(afs_int32 in)
{
    if (in == 0)
	return 0;
    if (in < 0 || in > 511)
	return in;
    if ((in >= VICE_SPECIAL_ERRORS && in <= VIO) || in == VRESTRICTED)
	return in;
    if (sys2et[in] != 0)
	return sys2et[in];
    return in;
}
