windows-afsifs-20050804
[openafs.git] / src / WINNT / afsd / cm_callback.c
index b9bcaef..5e22237 100644 (file)
 #include <stdlib.h>
 
 #include <osi.h>
+#include <rx_pthread.h>
 
 #include "afsd.h"
+#include <WINNT/syscfg.h>
+#include <WINNT/afsreg.h>
+#include <../afsrdr/kif.h>
 
 /*extern void afsi_log(char *pattern, ...);*/
 
@@ -70,46 +74,89 @@ cm_racingRevokes_t *cm_racingRevokesp;
  */
 void cm_RecordRacingRevoke(cm_fid_t *fidp, long cancelFlags)
 {
-       cm_racingRevokes_t *rp;
-
-       lock_ObtainWrite(&cm_callbackLock);
-       if (cm_activeCallbackGrantingCalls > 0) {
-               rp = malloc(sizeof(*rp));
-               memset(rp, 0, sizeof(*rp));
-               osi_QAdd((osi_queue_t **) &cm_racingRevokesp, &rp->q);
-                rp->flags |= (cancelFlags & CM_RACINGFLAG_ALL);
-               if (fidp) rp->fid = *fidp;
-                rp->callbackCount = ++cm_callbackCount;
-       }
-       lock_ReleaseWrite(&cm_callbackLock);
+    cm_racingRevokes_t *rp;
+
+    lock_ObtainWrite(&cm_callbackLock);
+
+    osi_Log3(afsd_logp, "RecordRacingRevoke Volume %d Flags %lX activeCalls %d",
+               fidp ? fidp->volume : 0, cancelFlags, cm_activeCallbackGrantingCalls);
+
+    if (cm_activeCallbackGrantingCalls > 0) {
+        rp = malloc(sizeof(*rp));
+        memset(rp, 0, sizeof(*rp));
+        osi_QAdd((osi_queue_t **) &cm_racingRevokesp, &rp->q);
+        rp->flags |= (cancelFlags & CM_RACINGFLAG_ALL);
+        if (fidp) rp->fid = *fidp;
+        rp->callbackCount = ++cm_callbackCount;
+    }
+    lock_ReleaseWrite(&cm_callbackLock);
 }
 
 /*
  * When we lose a callback, may have to send change notification replies.
+ * Do not call with a lock on the scp.
  */
 void cm_CallbackNotifyChange(cm_scache_t *scp)
 {
+    DWORD dwDelay = 0;
+    HKEY  hKey;
+    DWORD dummyLen;
+
+    /* why does this have to query the registry each time? */
+       if (RegOpenKeyEx( HKEY_LOCAL_MACHINE, 
+                      AFSREG_CLT_OPENAFS_SUBKEY,
+                      0,
+                      KEY_READ|KEY_QUERY_VALUE,
+                      &hKey) == ERROR_SUCCESS) {
+
+        dummyLen = sizeof(DWORD);
+        RegQueryValueEx(hKey, "CallBack Notify Change Delay", NULL, NULL,
+                        (BYTE *) &dwDelay, &dummyLen);
+        RegCloseKey(hKey);
+    }
+
+    if (dwDelay > 5000)    /* do not allow a delay of more then 5 seconds */
+        dwDelay = 5000;   
+
+    osi_Log3(afsd_logp, "CallbackNotifyChange FileType %d Flags %lX Delay %dms",
+              scp->fileType, scp->flags, dwDelay);
+
+    if (dwDelay)
+        Sleep(dwDelay);
+
+    /* for directories, this sends a change notification on the dir itself */
        if (scp->fileType == CM_SCACHETYPE_DIRECTORY) {
-               if (scp->flags & CM_SCACHEFLAG_ANYWATCH)
-                       smb_NotifyChange(0,
-                        FILE_NOTIFY_GENERIC_DIRECTORY_FILTER,
-                        scp, NULL, NULL, TRUE);
-       } else {
-               cm_fid_t tfid;
-               cm_scache_t *dscp;
-
-               tfid.cell = scp->fid.cell;
-               tfid.volume = scp->fid.volume;
-               tfid.vnode = scp->parentVnode;
-               tfid.unique = scp->parentUnique;
-               dscp = cm_FindSCache(&tfid);
-               if (dscp &&
-                       dscp->flags & CM_SCACHEFLAG_ANYWATCH)
-                       smb_NotifyChange(0,
-                        FILE_NOTIFY_GENERIC_FILE_FILTER,
-                        dscp, NULL, NULL, TRUE);
-               if (dscp) cm_ReleaseSCache(dscp);
-       }
+#ifndef AFSIFS
+        if (scp->flags & CM_SCACHEFLAG_ANYWATCH)
+            smb_NotifyChange(0,
+                             FILE_NOTIFY_GENERIC_DIRECTORY_FILTER,
+                             scp, NULL, NULL, TRUE);
+#else
+        dc_break_callback(FID_HASH_FN(&scp->fid));
+#endif
+    } else {
+       /* and for files, this sends a change notification on the file's parent dir */
+        cm_fid_t tfid;
+        cm_scache_t *dscp;
+
+        tfid.cell = scp->fid.cell;
+        tfid.volume = scp->fid.volume;
+        tfid.vnode = scp->parentVnode;
+        tfid.unique = scp->parentUnique;
+        dscp = cm_FindSCache(&tfid);
+#ifndef AFSIFS
+        if ( dscp &&
+             dscp->flags & CM_SCACHEFLAG_ANYWATCH )
+            smb_NotifyChange( 0,
+                              FILE_NOTIFY_GENERIC_FILE_FILTER,
+                              dscp,   NULL, NULL, TRUE);
+#else
+        if (dscp)
+            dc_break_callback(FID_HASH_FN(&dscp->fid));
+#endif
+        if (dscp) 
+            cm_ReleaseSCache(dscp);
+    }
 }
 
 /* called with no locks held for every file ID that is revoked directly by
@@ -120,50 +167,57 @@ void cm_CallbackNotifyChange(cm_scache_t *scp)
  */
 void cm_RevokeCallback(struct rx_call *callp, AFSFid *fidp)
 {
-       cm_fid_t tfid;
-        cm_scache_t *scp;
-        long hash;
+    cm_fid_t tfid;
+    cm_scache_t *scp;
+    long hash;
         
-       /* don't bother setting cell, since we won't be checking it (to aid
-         * in working with multi-homed servers: we don't know the cell if we
-         * don't recognize the IP address).
-         */
-       tfid.cell = 0;
-        tfid.volume = fidp->Volume;
-        tfid.vnode = fidp->Vnode;
-        tfid.unique = fidp->Unique;
-        hash = CM_SCACHE_HASH(&tfid);
-
-       osi_Log3(afsd_logp, "Revoke callback vol %d vn %d un %d",
-                fidp->Volume, fidp->Vnode, fidp->Unique);
+    /* don't bother setting cell, since we won't be checking it (to aid
+     * in working with multi-homed servers: we don't know the cell if we
+     * don't recognize the IP address).
+     */
+    tfid.cell = 0;
+    tfid.volume = fidp->Volume;
+    tfid.vnode = fidp->Vnode;
+    tfid.unique = fidp->Unique;
+    hash = CM_SCACHE_HASH(&tfid);
+
+    osi_Log3(afsd_logp, "RevokeCallback vol %u vn %u uniq %u",
+             fidp->Volume, fidp->Vnode, fidp->Unique);
         
-       /* do this first, so that if we're executing a callback granting call
-         * at this moment, we kill it before it can be merged in.  Otherwise,
-         * it could complete while we're doing the scan below, and get missed
-         * by both the scan and by this code.
-         */
-       cm_RecordRacingRevoke(&tfid, 0);
+    /* do this first, so that if we're executing a callback granting call
+     * at this moment, we kill it before it can be merged in.  Otherwise,
+     * it could complete while we're doing the scan below, and get missed
+     * by both the scan and by this code.
+     */
+    cm_RecordRacingRevoke(&tfid, 0);
 
-       lock_ObtainWrite(&cm_scacheLock);
-       /* do all in the hash bucket, since we don't know how many we'll find with
-         * varying cells.
-         */
-        for(scp = cm_hashTablep[hash]; scp; scp=scp->nextp) {
-               if (scp->fid.volume == tfid.volume &&
-                       scp->fid.vnode == tfid.vnode &&
-                        scp->fid.unique == tfid.unique) {
-                       scp->refCount++;
-                       lock_ReleaseWrite(&cm_scacheLock);
-                       osi_Log1(afsd_logp, "Revoke scp %x", scp);
-                        lock_ObtainMutex(&scp->mx);
-                       cm_DiscardSCache(scp);
-                        lock_ReleaseMutex(&scp->mx);
-                       cm_CallbackNotifyChange(scp);
-                        lock_ObtainWrite(&cm_scacheLock);
-                        scp->refCount--;
-               }
+    lock_ObtainWrite(&cm_scacheLock);
+    /* do all in the hash bucket, since we don't know how many we'll find with
+     * varying cells.
+     */
+    for (scp = cm_data.hashTablep[hash]; scp; scp=scp->nextp) {
+        if (scp->fid.volume == tfid.volume &&
+             scp->fid.vnode == tfid.vnode &&
+             scp->fid.unique == tfid.unique &&
+             scp->cbExpires > 0 && 
+             scp->cbServerp != NULL)
+        {
+            cm_HoldSCacheNoLock(scp);
+            lock_ReleaseWrite(&cm_scacheLock);
+            osi_Log4(afsd_logp, "RevokeCallback Discarding SCache scp 0x%x vol %u vn %u uniq %u", 
+                     scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+            lock_ObtainMutex(&scp->mx);
+            cm_DiscardSCache(scp);
+            lock_ReleaseMutex(&scp->mx);
+            cm_CallbackNotifyChange(scp);
+            lock_ObtainWrite(&cm_scacheLock);
+            cm_ReleaseSCacheNoLock(scp);
         }
-       lock_ReleaseWrite(&cm_scacheLock);
+    }
+    lock_ReleaseWrite(&cm_scacheLock);
+
+    osi_Log3(afsd_logp, "RevokeCallback Complete vol %u vn %u uniq %u",
+             fidp->Volume, fidp->Vnode, fidp->Unique);
 }
 
 /* called to revoke a volume callback, which is typically issued when a volume
@@ -173,64 +227,173 @@ void cm_RevokeCallback(struct rx_call *callp, AFSFid *fidp)
  */
 void cm_RevokeVolumeCallback(struct rx_call *callp, AFSFid *fidp)
 {
-       long hash;
-        cm_scache_t *scp;
-        cm_fid_t tfid;
+    long hash;
+    cm_scache_t *scp;
+    cm_fid_t tfid;
 
-       /* do this first, so that if we're executing a callback granting call
-         * at this moment, we kill it before it can be merged in.  Otherwise,
-         * it could complete while we're doing the scan below, and get missed
-         * by both the scan and by this code.
-         */
-       tfid.cell = tfid.vnode = tfid.unique = 0;
-        tfid.volume = fidp->Volume;
-        cm_RecordRacingRevoke(&tfid, CM_RACINGFLAG_CANCELVOL);
-
-       osi_Log1(afsd_logp, "Revoke Volume %d", fidp->Volume);
-
-        lock_ObtainWrite(&cm_scacheLock);
-       for(hash = 0; hash < cm_hashTableSize; hash++) {
-               for(scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
-                       if (scp->fid.volume == fidp->Volume) {
-                               scp->refCount++;
-                               lock_ReleaseWrite(&cm_scacheLock);
-                               lock_ObtainMutex(&scp->mx);
-                               cm_DiscardSCache(scp);
-                               lock_ReleaseMutex(&scp->mx);
-                               cm_CallbackNotifyChange(scp);
-                               lock_ObtainWrite(&cm_scacheLock);
-                               scp->refCount--;
-                       }
-               }       /* search one hash bucket */
-       }       /* search all hash buckets */
-        
-        lock_ReleaseWrite(&cm_scacheLock);
+    osi_Log1(afsd_logp, "RevokeVolumeCallback vol %d", fidp->Volume);
+
+    /* do this first, so that if we're executing a callback granting call
+     * at this moment, we kill it before it can be merged in.  Otherwise,
+     * it could complete while we're doing the scan below, and get missed
+     * by both the scan and by this code.
+     */
+    tfid.cell = tfid.vnode = tfid.unique = 0;
+    tfid.volume = fidp->Volume;
+    cm_RecordRacingRevoke(&tfid, CM_RACINGFLAG_CANCELVOL);
+
+
+    lock_ObtainWrite(&cm_scacheLock);
+    for (hash = 0; hash < cm_data.hashTableSize; hash++) {
+        for(scp=cm_data.hashTablep[hash]; scp; scp=scp->nextp) {
+            if (scp->fid.volume == fidp->Volume &&
+                 scp->cbExpires > 0 &&
+                 scp->cbServerp != NULL) {
+                cm_HoldSCacheNoLock(scp);
+                lock_ReleaseWrite(&cm_scacheLock);
+                lock_ObtainMutex(&scp->mx);
+                osi_Log4(afsd_logp, "RevokeVolumeCallback Discarding SCache scp 0x%x vol %u vn %u uniq %u", 
+                          scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+                cm_DiscardSCache(scp);
+                lock_ReleaseMutex(&scp->mx);
+                cm_CallbackNotifyChange(scp);
+                lock_ObtainWrite(&cm_scacheLock);
+                cm_ReleaseSCacheNoLock(scp);
+            }
+        }      /* search one hash bucket */
+    }  /* search all hash buckets */
+
+    lock_ReleaseWrite(&cm_scacheLock);
+
+    osi_Log1(afsd_logp, "RevokeVolumeCallback Complete vol %d", fidp->Volume);
 }
 
+/*
+ * afs_data_pointer_to_int32() - returns least significant afs_int32 of the
+ * given data pointer, without triggering "cast truncates pointer"
+ * warnings.  We use this where we explicitly don't care whether a
+ * pointer is truncated -- it loses information where a pointer is
+ * larger than an afs_int32.
+ */
+
+static afs_int32
+afs_data_pointer_to_int32(const void *p)
+{
+    union {
+        afs_int32 i32[sizeof(void *) / sizeof(afs_int32)];
+        const void *p;
+    } ip;
+
+    int i32_sub;                /* subscript of least significant afs_int32 in ip.i32[] */
+
+    /* set i32_sub */
+
+    {
+        /* used to determine the byte order of the system */
+
+        union {
+            char c[sizeof(int) / sizeof(char)];
+            int i;
+        } ci;
+
+        ci.i = 1;
+        if (ci.c[0] == 1) {
+            /* little-endian system */
+            i32_sub = 0;
+        } else {
+            /* big-endian system */
+            i32_sub = (sizeof ip.i32 / sizeof ip.i32[0]) - 1;
+        }
+    }
+
+    ip.p = p;
+    return ip.i32[i32_sub];
+}
+/*------------------------------------------------------------------------
+ * EXPORTED SRXAFSCB_CallBack
+ *
+ * Description:
+ *      Routine called by the server-side callback RPC interface to
+ *      implement passing in callback information.
+ *      table.
+ *
+ * Arguments:
+ *      rx_call    : Ptr to Rx call on which this request came in.
+ *      fidsArrayp : Ptr to array of fids involved.
+ *      cbsArrayp  : Ptr to matching callback info for the fids.
+ *
+ * Returns:
+ *      0 (always).
+ *
+ * Environment:
+ *      Nothing interesting.
+ *
+ * Side Effects:
+ *      As advertised.
+ *------------------------------------------------------------------------*/
 /* handle incoming RPC callback breaking message.
  * Called with no locks held.
  */
+int
 SRXAFSCB_CallBack(struct rx_call *callp, AFSCBFids *fidsArrayp, AFSCBs *cbsArrayp)
 {
-        int i;
-        AFSFid *tfidp;
-        
-        for(i=0; i < (long) fidsArrayp->AFSCBFids_len; i++) {
-               tfidp = &fidsArrayp->AFSCBFids_val[i];
+    int i;
+    AFSFid *tfidp;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_CallBack from host 0x%x port %d",
+              ntohl(host),
+              ntohs(port));
+
+    for (i=0; i < (long) fidsArrayp->AFSCBFids_len; i++) {
+        tfidp = &fidsArrayp->AFSCBFids_val[i];
                 
-                if (tfidp->Volume == 0) continue;      /* means don't do anything */
-                else if (tfidp->Vnode == 0)
-                       cm_RevokeVolumeCallback(callp, tfidp);
-               else cm_RevokeCallback(callp, tfidp);
-        }
+        if (tfidp->Volume == 0)
+            continue;   /* means don't do anything */
+        else if (tfidp->Vnode == 0)
+            cm_RevokeVolumeCallback(callp, tfidp);
+        else
+            cm_RevokeCallback(callp, tfidp);
+    }
 
-       return 0;
+    MUTEX_EXIT(&callp->lock);
+    return 0;
 }
 
+/*------------------------------------------------------------------------
+ * EXPORTED SRXAFSCB_InitCallBackState
+ *
+ * Description:
+ *      Routine called by the server-side callback RPC interface to
+ *      implement clearing all callbacks from this host.
+ *
+ * Arguments:
+ *      rx_call : Ptr to Rx call on which this request came in.
+ *
+ * Returns:
+ *      0 (always).
+ *
+ * Environment:
+ *      Nothing interesting.
+ *
+ * Side Effects:
+ *      As advertised.
+ *------------------------------------------------------------------------*/
 /* called with no locks by RPC system when a server indicates that it has never
  * heard from us, or for other reasons has had to discard callbacks from us
  * without telling us, e.g. a network partition.
  */
+int
 SRXAFSCB_InitCallBackState(struct rx_call *callp)
 {
     struct sockaddr_in taddr;
@@ -238,6 +401,21 @@ SRXAFSCB_InitCallBackState(struct rx_call *callp)
     cm_scache_t *scp;
     int hash;
     int discarded;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_InitCallBackState from host 0x%x port %d",
+              ntohl(host),
+              ntohs(port));
 
     if ((rx_ConnectionOf(callp)) && (rx_PeerOf(rx_ConnectionOf(callp)))) {
        taddr.sin_family = AF_INET;
@@ -272,105 +450,704 @@ SRXAFSCB_InitCallBackState(struct rx_call *callp)
         * are "rare," hopefully this won't be a problem.
         */
        lock_ObtainWrite(&cm_scacheLock);
-       for(hash = 0; hash < cm_hashTableSize; hash++) {
-               for(scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
-                       scp->refCount++;
-                        lock_ReleaseWrite(&cm_scacheLock);
-                        lock_ObtainMutex(&scp->mx);
-                       discarded = 0;
-                       if (scp->cbServerp != NULL) {
-                               /* we have a callback, now decide if we should clear it */
-                               if (scp->cbServerp == tsp || tsp == NULL) {
-                                       cm_DiscardSCache(scp);
-                                       discarded = 1;
-                               }
-                       }
-                       lock_ReleaseMutex(&scp->mx);
-                       if (discarded)
-                               cm_CallbackNotifyChange(scp);
-                        lock_ObtainWrite(&cm_scacheLock);
-                        scp->refCount--;
-               }       /* search one hash bucket */
-       }       /* search all hash buckets */
+       for (hash = 0; hash < cm_data.hashTableSize; hash++) {
+            for (scp=cm_data.hashTablep[hash]; scp; scp=scp->nextp) {
+                cm_HoldSCacheNoLock(scp);
+                lock_ReleaseWrite(&cm_scacheLock);
+                lock_ObtainMutex(&scp->mx);
+                discarded = 0;
+                if (scp->cbExpires > 0 && scp->cbServerp != NULL) {
+                    /* we have a callback, now decide if we should clear it */
+                    if (scp->cbServerp == tsp || tsp == NULL) {
+                        osi_Log4(afsd_logp, "InitCallbackState Discarding SCache scp 0x%x vol %u vn %u uniq %u", 
+                                  scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+                        cm_DiscardSCache(scp);
+                        discarded = 1;
+                    }
+                }
+                lock_ReleaseMutex(&scp->mx);
+                if (discarded)
+                    cm_CallbackNotifyChange(scp);
+                lock_ObtainWrite(&cm_scacheLock);
+                cm_ReleaseSCacheNoLock(scp);
+            }  /* search one hash bucket */
+       }       /* search all hash buckets */
        
        lock_ReleaseWrite(&cm_scacheLock);
        
        /* we're done with the server structure */
-       if (tsp) cm_PutServer(tsp);
+       if (tsp) 
+            cm_PutServer(tsp);
     }
-
+    MUTEX_EXIT(&callp->lock);
     return 0;
 }
 
-/* just returns if we're up */
+/*------------------------------------------------------------------------
+ * EXPORTED SRXAFSCB_Probe
+ *
+ * Description:
+ *      Routine called by the server-side callback RPC interface to
+ *      implement ``probing'' the Cache Manager, just making sure it's
+ *      still there.
+ *
+ * Arguments:
+ *      rx_call : Ptr to Rx call on which this request came in.
+ *
+ * Returns:
+ *      0 (always).
+ *
+ * Environment:
+ *      Nothing interesting.
+ *
+ * Side Effects:
+ *      As advertised.
+ *------------------------------------------------------------------------*/
+int
 SRXAFSCB_Probe(struct rx_call *callp)
 {
-       return 0;
-}
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
 
-/* debug interface: not implemented */
-SRXAFSCB_GetCE64(struct rx_call *callp, long index, AFSDBCacheEntry *cep)
-{
-    /* XXXX */
-    return RXGEN_OPCODE;
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_Probe from host 0x%x port %d",
+              ntohl(host),
+              ntohs(port));
+
+    MUTEX_EXIT(&callp->lock);
+    return 0;
 }
 
-/* debug interface: not implemented */
+/*------------------------------------------------------------------------
+ * EXPORTED SRXAFSCB_GetLock
+ *
+ * Description:
+ *      Routine called by the server-side callback RPC interface to
+ *      implement pulling out the contents of a lock in the lock
+ *      table.
+ *
+ * Arguments:
+ *      a_call   : Ptr to Rx call on which this request came in.
+ *      a_index  : Index of desired lock.
+ *      a_result : Ptr to a buffer for the given lock.
+ *
+ * Returns:
+ *      0 if everything went fine,
+ *      1 if we were given a bad index.
+ *
+ * Environment:
+ *      Nothing interesting.
+ *
+ * Side Effects:
+ *      As advertised.
+ *------------------------------------------------------------------------*/
+/* debug interface */
+
+extern osi_rwlock_t cm_aclLock;
+extern osi_rwlock_t buf_globalLock;
+extern osi_rwlock_t cm_callbackLock;
+extern osi_rwlock_t cm_cellLock;
+extern osi_rwlock_t cm_connLock;
+extern osi_rwlock_t cm_daemonLock;
+extern osi_rwlock_t cm_dnlcLock;
+extern osi_rwlock_t cm_scacheLock;
+extern osi_rwlock_t cm_serverLock;
+extern osi_rwlock_t cm_userLock;
+extern osi_rwlock_t cm_utilsLock;
+extern osi_rwlock_t cm_volumeLock;
+extern osi_rwlock_t smb_globalLock;
+extern osi_rwlock_t smb_rctLock;
+
+extern osi_mutex_t cm_Freelance_Lock;
+extern osi_mutex_t cm_bufGetMutex;
+extern osi_mutex_t cm_Afsdsbmt_Lock;
+extern osi_mutex_t tokenEventLock;
+extern osi_mutex_t  smb_ListenerLock;
+extern osi_mutex_t smb_RawBufLock;
+extern osi_mutex_t smb_Dir_Watch_Lock;
+
+#define LOCKTYPE_RW     1
+#define LOCKTYPE_MUTEX  2
+static struct _ltable {
+    char *name;
+    char *addr;
+    int  type;
+} ltable[] = {
+    {"cm_scacheLock",    (char*)&cm_scacheLock,         LOCKTYPE_RW},
+    {"buf_globalLock",   (char*)&buf_globalLock,        LOCKTYPE_RW},
+    {"cm_serverLock",    (char*)&cm_serverLock,         LOCKTYPE_RW},
+    {"cm_callbackLock",  (char*)&cm_callbackLock,       LOCKTYPE_RW},
+    {"cm_aclLock",       (char*)&cm_aclLock,            LOCKTYPE_RW},
+    {"cm_cellLock",      (char*)&cm_cellLock,           LOCKTYPE_RW},
+    {"cm_connLock",      (char*)&cm_connLock,           LOCKTYPE_RW},
+    {"cm_userLock",      (char*)&cm_userLock,           LOCKTYPE_RW},
+    {"cm_volumeLock",    (char*)&cm_volumeLock,         LOCKTYPE_RW},
+    {"cm_daemonLock",    (char*)&cm_daemonLock,         LOCKTYPE_RW},
+    {"cm_dnlcLock",      (char*)&cm_dnlcLock,           LOCKTYPE_RW},
+    {"cm_utilsLock",     (char*)&cm_utilsLock,          LOCKTYPE_RW},
+    {"smb_globalLock",   (char*)&smb_globalLock,        LOCKTYPE_RW},
+    {"smb_rctLock",      (char*)&smb_rctLock,           LOCKTYPE_RW},
+    {"cm_Freelance_Lock",(char*)&cm_Freelance_Lock,     LOCKTYPE_MUTEX},
+    {"cm_bufGetMutex",   (char*)&cm_bufGetMutex,        LOCKTYPE_MUTEX},
+    {"cm_Afsdsbmt_Lock", (char*)&cm_Afsdsbmt_Lock,      LOCKTYPE_MUTEX},
+    {"tokenEventLock",   (char*)&tokenEventLock,        LOCKTYPE_MUTEX},
+    {"smb_ListenerLock", (char*)&smb_ListenerLock,      LOCKTYPE_MUTEX},
+    {"smb_RawBufLock",   (char*)&smb_RawBufLock,        LOCKTYPE_MUTEX},
+    {"smb_Dir_Watch_Lock",(char*)&smb_Dir_Watch_Lock,   LOCKTYPE_MUTEX}
+};
+
+int
 SRXAFSCB_GetLock(struct rx_call *callp, long index, AFSDBLock *lockp)
 {
-       /* XXXX */
-       return RXGEN_OPCODE;
+    struct _ltable *tl;          /*Ptr to lock table entry */
+    osi_rwlock_t  *rwp;
+    osi_mutex_t   *mtxp;
+    int nentries;               /*Num entries in table */
+    int code;                   /*Return code */
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log3(afsd_logp, "SRXAFSCB_GetLock(%d) from host 0x%x port %d", 
+             index, ntohl(host), ntohs(port));
+
+    nentries = sizeof(ltable) / sizeof(struct _ltable);
+    if (index < 0 || index >= nentries) {
+        /*
+         * Past EOF
+         */
+        code = 1;
+    } else {
+        /*
+         * Found it - copy out its contents.
+         */
+        tl = &ltable[index];
+        strncpy(lockp->name, tl->name, sizeof(lockp->name));
+        lockp->name[sizeof(lockp->name)-1] = '\0';
+        lockp->lock.waitStates = 0;
+        switch ( tl->type ) {
+        case LOCKTYPE_RW:
+            rwp = (osi_rwlock_t *)tl->addr;
+            lockp->lock.exclLocked = rwp->flags;
+            lockp->lock.readersReading = rwp->readers;
+            lockp->lock.numWaiting = rwp->waiters;
+            break;
+        case LOCKTYPE_MUTEX:
+            mtxp = (osi_mutex_t *)tl->addr;
+            lockp->lock.exclLocked = mtxp->flags;
+            lockp->lock.readersReading = 0;
+            lockp->lock.numWaiting = mtxp->waiters;
+            break;
+        }
+        lockp->lock.pid_last_reader = 0;
+        lockp->lock.pid_writer = 0;
+        lockp->lock.src_indicator = 0;
+        code = 0;
+    }
+
+    MUTEX_EXIT(&callp->lock);
+    return code;
 }
 
-/* debug interface: not implemented */
+/* debug interface */
+int
 SRXAFSCB_GetCE(struct rx_call *callp, long index, AFSDBCacheEntry *cep)
 {
-       /* XXXX */
-       return RXGEN_OPCODE;
+    int i;
+    cm_scache_t * scp;
+    int code;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_GetCE from host 0x%x port %d",
+             ntohl(host), ntohs(port));
+
+    lock_ObtainRead(&cm_scacheLock);
+    for (i = 0; i < cm_data.hashTableSize; i++) {
+        for (scp = cm_data.hashTablep[i]; scp; scp = scp->nextp) {
+            if (index == 0)
+                goto searchDone;
+            index--;
+        }                       /*Zip through current hash chain */
+    }                           /*Zip through hash chains */
+
+  searchDone:
+    if (scp == NULL) {
+        /*Past EOF */
+        code = 1;
+        goto fcnDone;
+    }
+
+    /*
+     * Copy out the located entry.
+     */
+    memset(cep, 0, sizeof(AFSDBCacheEntry));
+    cep->addr = afs_data_pointer_to_int32(scp);
+    cep->cell = scp->fid.cell;
+    cep->netFid.Volume = scp->fid.volume;
+    cep->netFid.Vnode = scp->fid.vnode;
+    cep->netFid.Unique = scp->fid.unique;
+    cep->lock.waitStates = 0;
+    cep->lock.exclLocked = scp->mx.flags;
+    cep->lock.readersReading = 0;
+    cep->lock.numWaiting = scp->mx.waiters;
+    cep->lock.pid_last_reader = 0;
+    cep->lock.pid_writer = 0;
+    cep->lock.src_indicator = 0;
+    cep->Length = scp->length.LowPart;
+    cep->DataVersion = scp->dataVersion;
+    cep->callback = afs_data_pointer_to_int32(scp->cbServerp);
+    cep->cbExpires = scp->cbExpires;
+    cep->refCount = scp->refCount;
+    cep->opens = scp->openReads;
+    cep->writers = scp->openWrites;
+    switch (scp->fileType) {
+    case CM_SCACHETYPE_FILE:
+        cep->mvstat = 0;
+        break;
+    case CM_SCACHETYPE_MOUNTPOINT:
+        cep->mvstat = 1;
+        break;
+    case CM_SCACHETYPE_DIRECTORY:
+        if (scp->fid.vnode == 1 && scp->fid.unique == 1)
+            cep->mvstat = 2;
+        else
+            cep->mvstat = 3;
+        break;
+    case CM_SCACHETYPE_SYMLINK:
+        cep->mvstat = 4;
+        break;
+    case CM_SCACHETYPE_DFSLINK:
+        cep->mvstat = 5;
+        break;
+    case CM_SCACHETYPE_INVALID:
+        cep->mvstat = 6;
+        break;
+    }
+    cep->states = 0;
+    if (scp->flags & CM_SCACHEFLAG_STATD)
+        cep->states |= 1;
+    if (scp->flags & CM_SCACHEFLAG_RO || scp->flags & CM_SCACHEFLAG_PURERO)
+        cep->states |= 4;
+    if (scp->fileType == CM_SCACHETYPE_MOUNTPOINT &&
+        scp->mountPointStringp[0])
+        cep->states |= 8;
+    if (scp->flags & CM_SCACHEFLAG_WAITING)
+        cep->states |= 0x40;
+    code = 0;
+
+    /*
+     * Return our results.
+     */
+  fcnDone:
+    lock_ReleaseRead(&cm_scacheLock);
+
+    MUTEX_EXIT(&callp->lock);
+    return (code);
+}
+
+/* debug interface */
+int
+SRXAFSCB_GetCE64(struct rx_call *callp, long index, AFSDBCacheEntry64 *cep)
+{
+    int i;
+    cm_scache_t * scp;
+    int code;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_GetCE64 from host 0x%x port %d",
+             ntohl(host), ntohs(port));
+
+    lock_ObtainRead(&cm_scacheLock);
+    for (i = 0; i < cm_data.hashTableSize; i++) {
+        for (scp = cm_data.hashTablep[i]; scp; scp = scp->nextp) {
+            if (index == 0)
+                goto searchDone;
+            index--;
+        }                       /*Zip through current hash chain */
+    }                           /*Zip through hash chains */
+
+  searchDone:
+    if (scp == NULL) {
+        /*Past EOF */
+        code = 1;
+        goto fcnDone;
+    }
+
+    /*
+     * Copy out the located entry.
+     */
+    memset(cep, 0, sizeof(AFSDBCacheEntry64));
+    cep->addr = afs_data_pointer_to_int32(scp);
+    cep->cell = scp->fid.cell;
+    cep->netFid.Volume = scp->fid.volume;
+    cep->netFid.Vnode = scp->fid.vnode;
+    cep->netFid.Unique = scp->fid.unique;
+    cep->lock.waitStates = 0;
+    cep->lock.exclLocked = scp->mx.flags;
+    cep->lock.readersReading = 0;
+    cep->lock.numWaiting = scp->mx.waiters;
+    cep->lock.pid_last_reader = 0;
+    cep->lock.pid_writer = 0;
+    cep->lock.src_indicator = 0;
+#if !defined(AFS_64BIT_ENV)
+    cep->Length.high = scp->length.HighPart;
+    cep->Length.low = scp->length.LowPart;
+#else
+    cep->Length = ((afs_int64)scp->length.HighPart)<<32 | scp->length.LowPart;
+#endif
+    cep->DataVersion = scp->dataVersion;
+    cep->callback = afs_data_pointer_to_int32(scp->cbServerp);
+    cep->cbExpires = scp->cbExpires;
+    cep->refCount = scp->refCount;
+    cep->opens = scp->openReads;
+    cep->writers = scp->openWrites;
+    switch (scp->fileType) {
+    case CM_SCACHETYPE_FILE:
+        cep->mvstat = 0;
+        break;
+    case CM_SCACHETYPE_MOUNTPOINT:
+        cep->mvstat = 1;
+        break;
+    case CM_SCACHETYPE_DIRECTORY:
+        if (scp->fid.vnode == 1 && scp->fid.unique == 1)
+            cep->mvstat = 2;
+        else
+            cep->mvstat = 3;
+        break;
+    case CM_SCACHETYPE_SYMLINK:
+        cep->mvstat = 4;
+        break;
+    case CM_SCACHETYPE_DFSLINK:
+        cep->mvstat = 5;
+        break;
+    case CM_SCACHETYPE_INVALID:
+        cep->mvstat = 6;
+        break;
+    }
+    cep->states = 0;
+    if (scp->flags & CM_SCACHEFLAG_STATD)
+        cep->states |= 1;
+    if (scp->flags & CM_SCACHEFLAG_RO || scp->flags & CM_SCACHEFLAG_PURERO)
+        cep->states |= 4;
+    if (scp->fileType == CM_SCACHETYPE_MOUNTPOINT &&
+        scp->mountPointStringp[0])
+        cep->states |= 8;
+    if (scp->flags & CM_SCACHEFLAG_WAITING)
+        cep->states |= 0x40;
+    code = 0;
+
+    /*
+     * Return our results.
+     */
+  fcnDone:
+    lock_ReleaseRead(&cm_scacheLock);
+
+    MUTEX_EXIT(&callp->lock);
+    return (code);
 }
 
 /* debug interface: not implemented */
+int
 SRXAFSCB_XStatsVersion(struct rx_call *callp, long *vp)
 {
-       /* XXXX */
-       *vp = -1;
-       return RXGEN_OPCODE;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_XStatsVersion from host 0x%x port %d - not implemented",
+             ntohl(host), ntohs(port));
+    *vp = -1;
+
+    MUTEX_EXIT(&callp->lock);
+    return RXGEN_OPCODE;
 }
 
 /* debug interface: not implemented */
+int
 SRXAFSCB_GetXStats(struct rx_call *callp, long cvn, long coln, long *srvp, long *timep,
-       AFSCB_CollData *datap)
+                   AFSCB_CollData *datap)
 {
-       /* XXXX */
-       return RXGEN_OPCODE;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_GetXStats from host 0x%x port %d - not implemented",
+             ntohl(host), ntohs(port));
+
+    MUTEX_EXIT(&callp->lock);
+    return RXGEN_OPCODE;
 }
 
-/* debug interface: not implemented */
+int
 SRXAFSCB_InitCallBackState2(struct rx_call *callp, struct interfaceAddr* addr)
 {
-       /* XXXX */
-       return RXGEN_OPCODE;
+    osi_Log0(afsd_logp, "SRXAFSCB_InitCallBackState2 ->");
+
+    return SRXAFSCB_InitCallBackState(callp);
 }
 
-/* debug interface: not implemented */
+/* debug interface */
+int
 SRXAFSCB_WhoAreYou(struct rx_call *callp, struct interfaceAddr* addr)
 {
-       /* XXXX */
-       return RXGEN_OPCODE;
+    int i;
+    int cm_noIPAddr;         /* number of client network interfaces */
+    int cm_IPAddr[CM_MAXINTERFACE_ADDR];    /* client's IP address in host order */
+    int cm_SubnetMask[CM_MAXINTERFACE_ADDR];/* client's subnet mask in host order*/
+    int cm_NetMtu[CM_MAXINTERFACE_ADDR];    /* client's MTU sizes */
+    int cm_NetFlags[CM_MAXINTERFACE_ADDR];  /* network flags */
+    long code;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    /* get network related info */
+    cm_noIPAddr = CM_MAXINTERFACE_ADDR;
+    code = syscfg_GetIFInfo(&cm_noIPAddr,
+                             cm_IPAddr, cm_SubnetMask,
+                             cm_NetMtu, cm_NetFlags);
+
+    /* return all network interface addresses */
+    osi_Log2(afsd_logp, "SRXAFSCB_WhoAreYou from host 0x%x port %d",
+              ntohl(host),
+              ntohs(port));
+
+    addr->numberOfInterfaces = cm_noIPAddr;
+    addr->uuid = cm_data.Uuid;
+    for ( i=0; i < cm_noIPAddr; i++ ) {
+        addr->addr_in[i] = cm_IPAddr[i];
+        addr->subnetmask[i] = cm_SubnetMask[i];
+        addr->mtu[i] = (rx_mtu == -1 || (rx_mtu != -1 && cm_NetMtu[i] < rx_mtu)) ? 
+            cm_NetMtu[i] : rx_mtu;
+    }
+
+    MUTEX_EXIT(&callp->lock);
+    return 0;
 }
 
-/* debug interface: not implemented */
+int
 SRXAFSCB_InitCallBackState3(struct rx_call *callp, afsUUID* serverUuid)
 {
-       /* XXXX */
-       return RXGEN_OPCODE;
+    char *p = NULL;
+
+    if (UuidToString((UUID *)serverUuid, &p) == RPC_S_OK) {
+        osi_Log1(afsd_logp, "SRXAFSCB_InitCallBackState3 %s ->",p);
+        RpcStringFree(&p);
+    } else
+        osi_Log0(afsd_logp, "SRXAFSCB_InitCallBackState3 - no server Uuid ->");
+
+    return SRXAFSCB_InitCallBackState(callp);
 }
 
-/* debug interface: not implemented */
+/* debug interface */
+int
 SRXAFSCB_ProbeUuid(struct rx_call *callp, afsUUID* clientUuid)
 {
-       /* XXXX */
-       return RXGEN_OPCODE;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+    char *p,*q;
+    int code = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    if ( !afs_uuid_equal(&cm_data.Uuid, clientUuid) ) {
+        UuidToString((UUID *)&cm_data.Uuid, &p);
+        UuidToString((UUID *)clientUuid, &q);
+        osi_Log4(afsd_logp, "SRXAFSCB_ProbeUuid %s != %s from host 0x%x port %d", 
+                  osi_LogSaveString(afsd_logp,p), 
+                  osi_LogSaveString(afsd_logp,q),
+                  ntohl(host),
+                  ntohs(port));
+        RpcStringFree(&p);
+        RpcStringFree(&q);
+
+        code = 1;       /* failure */
+    } else
+        osi_Log2(afsd_logp, "SRXAFSCB_ProbeUuid (success) from host 0x%x port %d",
+                  ntohl(host),
+                  ntohs(port));
+
+    MUTEX_EXIT(&callp->lock);
+    return code;
+}
+
+/* debug interface */
+int 
+SRXAFSCB_GetCellByNum(struct rx_call *callp, afs_int32 a_cellnum,
+                      char **a_name, serverList *a_hosts)
+{
+    afs_int32 sn;
+    cm_cell_t * cellp;
+    cm_serverRef_t * serverRefp; 
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log3(afsd_logp, "SRXAFSCB_GetCellByNum(%d) from host 0x%x port %d",
+             a_cellnum, ntohl(host), ntohs(port));
+
+    a_hosts->serverList_val = 0;
+    a_hosts->serverList_len = 0;
+
+    cellp = cm_FindCellByID(a_cellnum);
+    if (!cellp) {
+        *a_name = strdup("");
+        MUTEX_EXIT(&callp->lock);
+        return 0;
+    }
+
+    lock_ObtainRead(&cm_serverLock);
+    *a_name = strdup(cellp->name);
+
+    for ( sn = 0, serverRefp = cellp->vlServersp; 
+          sn < AFSMAXCELLHOSTS && serverRefp;
+          sn++, serverRefp = serverRefp->next);
+
+    a_hosts->serverList_len = sn;
+    a_hosts->serverList_val = (afs_int32 *)osi_Alloc(sn * sizeof(afs_int32));
+
+    for ( sn = 0, serverRefp = cellp->vlServersp; 
+          sn < AFSMAXCELLHOSTS && serverRefp;
+          sn++, serverRefp = serverRefp->next)
+    {
+        a_hosts->serverList_val[sn] = ntohl(serverRefp->server->addr.sin_addr.s_addr);
+    }
+
+    lock_ReleaseRead(&cm_serverLock);
+    MUTEX_EXIT(&callp->lock);
+    return 0;
+}
+
+/* debug interface */
+int 
+SRXAFSCB_TellMeAboutYourself( struct rx_call *callp, 
+                              struct interfaceAddr *addr,
+                              Capabilities * capabilities)
+{
+    int i;
+    afs_int32 *dataBuffP;
+    afs_int32 dataBytes;
+    int cm_noIPAddr;         /* number of client network interfaces */
+    int cm_IPAddr[CM_MAXINTERFACE_ADDR];    /* client's IP address in host order */
+    int cm_SubnetMask[CM_MAXINTERFACE_ADDR];/* client's subnet mask in host order*/
+    int cm_NetMtu[CM_MAXINTERFACE_ADDR];    /* client's MTU sizes */
+    int cm_NetFlags[CM_MAXINTERFACE_ADDR];  /* network flags */
+    long code;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    /* get network related info */
+    cm_noIPAddr = CM_MAXINTERFACE_ADDR;
+    code = syscfg_GetIFInfo(&cm_noIPAddr,
+                             cm_IPAddr, cm_SubnetMask,
+                             cm_NetMtu, cm_NetFlags);
+
+    osi_Log2(afsd_logp, "SRXAFSCB_TellMeAboutYourself from host 0x%x port %d",
+              ntohl(host),
+              ntohs(port));
+
+    /* return all network interface addresses */
+    addr->numberOfInterfaces = cm_noIPAddr;
+    addr->uuid = cm_data.Uuid;
+    for ( i=0; i < cm_noIPAddr; i++ ) {
+        addr->addr_in[i] = cm_IPAddr[i];
+        addr->subnetmask[i] = cm_SubnetMask[i];
+        addr->mtu[i] = (rx_mtu == -1 || (rx_mtu != -1 && cm_NetMtu[i] < rx_mtu)) ? 
+            cm_NetMtu[i] : rx_mtu;
+    }
+
+    dataBytes = 1 * sizeof(afs_int32);
+    dataBuffP = (afs_int32 *) osi_Alloc(dataBytes);
+    dataBuffP[0] = CAPABILITY_ERRORTRANS;
+    capabilities->Capabilities_len = dataBytes / sizeof(afs_int32);
+    capabilities->Capabilities_val = dataBuffP;
+
+    MUTEX_EXIT(&callp->lock);
+    return 0;
 }
 
 /*------------------------------------------------------------------------
@@ -396,13 +1173,31 @@ SRXAFSCB_ProbeUuid(struct rx_call *callp, afsUUID* clientUuid)
  *------------------------------------------------------------------------*/
 
 int SRXAFSCB_GetServerPrefs(
-    struct rx_call *a_call,
+    struct rx_call *callp,
     afs_int32 a_index,
     afs_int32 *a_srvr_addr,
     afs_int32 *a_srvr_rank)
 {
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_GetServerPrefs from host 0x%x port %d - not implemented",
+              ntohl(host),
+              ntohs(port));
+
     *a_srvr_addr = 0xffffffff;
     *a_srvr_rank = 0xffffffff;
+
+    MUTEX_EXIT(&callp->lock);
     return 0;
 }
 
@@ -428,18 +1223,31 @@ int SRXAFSCB_GetServerPrefs(
  *      As advertised.
  *------------------------------------------------------------------------*/
 
-int SRXAFSCB_GetCellServDB(
-    struct rx_call *a_call,
-    afs_int32 a_index,
-    char **a_name,
-    serverList *a_hosts)
+int SRXAFSCB_GetCellServDB(struct rx_call *callp, afs_int32 index, char **a_name, 
+                           serverList *a_hosts)
 {
     char *t_name;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_GetCellServDB from host 0x%x port %d - not implemented",
+             ntohl(host), ntohs(port));
 
     t_name = (char *)malloc(AFSNAMEMAX);
     t_name[0] = '\0';
     *a_name = t_name;
     a_hosts->serverList_len = 0;
+
+    MUTEX_EXIT(&callp->lock);
     return 0;
 }
 
@@ -463,20 +1271,34 @@ int SRXAFSCB_GetCellServDB(
  *      As advertised.
  *------------------------------------------------------------------------*/
 
-int SRXAFSCB_GetLocalCell(
-    struct rx_call *a_call,
-    char **a_name)
+int SRXAFSCB_GetLocalCell(struct rx_call *callp, char **a_name)
 {
     char *t_name;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
 
-    if (cm_rootCellp) {
-       t_name = (char *)malloc(strlen(cm_rootCellp->namep)+1);
-        strcpy(t_name, cm_rootCellp->namep);
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_GetLocalCell from host 0x%x port %d",
+             ntohl(host), ntohs(port));
+
+    if (cm_data.rootCellp) {
+       t_name = (char *)malloc(strlen(cm_data.rootCellp->name)+1);
+        strcpy(t_name, cm_data.rootCellp->name);
     } else {
        t_name = (char *)malloc(1);
        t_name[0] = '\0';
     }
     *a_name = t_name;
+
+    MUTEX_EXIT(&callp->lock);
     return 0;
 }
 
@@ -542,17 +1364,29 @@ static void afs_MarshallCacheConfig(
  *     As advertised.
  *------------------------------------------------------------------------*/
 
-int SRXAFSCB_GetCacheConfig(a_call, callerVersion, serverVersion,
-                           configCount, config)
-struct rx_call *a_call;
-afs_uint32 callerVersion;
-afs_uint32 *serverVersion;
-afs_uint32 *configCount;
-cacheConfig *config;
+int SRXAFSCB_GetCacheConfig(struct rx_call *callp,
+                            afs_uint32 callerVersion,
+                            afs_uint32 *serverVersion,
+                            afs_uint32 *configCount,
+                            cacheConfig *config)
 {
     afs_uint32 *t_config;
     size_t allocsize;
     extern cm_initparams_v1 cm_initParams;
+    struct rx_connection *connp;
+    struct rx_peer *peerp;
+    unsigned long host = 0;
+    unsigned short port = 0;
+
+    MUTEX_ENTER(&callp->lock);
+
+    if ((connp = rx_ConnectionOf(callp)) && (peerp = rx_PeerOf(connp))) {
+        host = rx_HostOf(peerp);
+        port = rx_PortOf(peerp);
+    }
+
+    osi_Log2(afsd_logp, "SRXAFSCB_GetCacheConfig from host 0x%x port %d - version 1 only",
+             ntohl(host), ntohs(port));
 
     /*
      * Currently only support version 1
@@ -567,14 +1401,15 @@ cacheConfig *config;
     config->cacheConfig_val = t_config;
     config->cacheConfig_len = allocsize/sizeof(afs_uint32);
 
+    MUTEX_EXIT(&callp->lock);
     return 0;
 }
 
 /* called by afsd without any locks to initialize this module */
 void cm_InitCallback(void)
 {
-       lock_InitializeRWLock(&cm_callbackLock, "cm_callbackLock");
-        cm_activeCallbackGrantingCalls = 0;
+    lock_InitializeRWLock(&cm_callbackLock, "cm_callbackLock");
+    cm_activeCallbackGrantingCalls = 0;
 }
 
 /* called with locked scp; tells us whether we've got a callback.
@@ -598,37 +1433,41 @@ int cm_HaveCallback(cm_scache_t *scp)
     // to be called because cm_GetCallback has some initialization work to do.
     // If cm_fakeDirCallback is 2, then it means that the fake directory is in
     // good shape and we simply return true, provided no change is detected.
-  int fdc, fgc;
+    int fdc, fgc;
 
     if (cm_freelanceEnabled && 
-        scp->fid.cell==AFS_FAKE_ROOT_CELL_ID &&
-        scp->fid.volume==AFS_FAKE_ROOT_VOL_ID) {       // if it's something on /afs
-       if (!(scp->fid.vnode==0x1 && scp->fid.unique==0x1))     // if it's not root.afs
+         scp->fid.cell==AFS_FAKE_ROOT_CELL_ID && scp->fid.volume==AFS_FAKE_ROOT_VOL_ID) {
+        /* if it's something on /afs */
+        if (!(scp->fid.vnode==0x1 && scp->fid.unique==0x1)) {
+            /* if it's not root.afs */
            return 1;
-       else {
-           lock_ObtainMutex(&cm_Freelance_Lock);
-           fdc = cm_fakeDirCallback;
-           fgc = cm_fakeGettingCallback;
-           lock_ReleaseMutex(&cm_Freelance_Lock);
+        }
+
+        lock_ObtainMutex(&cm_Freelance_Lock);
+        fdc = cm_fakeDirCallback;
+        fgc = cm_fakeGettingCallback;
+        lock_ReleaseMutex(&cm_Freelance_Lock);
            
-           if (fdc==1) {       // first call since init
-               return 0;
-           } else if (fdc==2 && !fgc) {        // we're in good shape
-               if (cm_getLocalMountPointChange()) {    // check for changes
-                   cm_clearLocalMountPointChange(); // clear the changefile
-                   cm_reInitLocalMountPoints();        // start reinit
-                   return 0;
-               }
-               return 1;                       // no change
-           }
-           return 0;
-       }
+        if (fdc==1) {  // first call since init
+            return 0;
+        } else if (fdc==2 && !fgc) {   // we're in good shape
+            if (cm_getLocalMountPointChange()) {       // check for changes
+                cm_clearLocalMountPointChange(); // clear the changefile
+                lock_ReleaseMutex(&scp->mx);      // this is re-locked in reInitLocalMountPoints
+                cm_reInitLocalMountPoints();   // start reinit
+                lock_ObtainMutex(&scp->mx);      // now get the lock back 
+                return 0;
+            }
+            return 1;                  // no change
+        }
+        return 0;
     }
 #endif
 
     if (scp->cbServerp != NULL)
        return 1;
-    else return 0;
+    else 
+        return 0;
 }
 
 /* need to detect a broken callback that races with our obtaining a callback.
@@ -652,12 +1491,12 @@ int cm_HaveCallback(cm_scache_t *scp)
  */
 void cm_StartCallbackGrantingCall(cm_scache_t *scp, cm_callbackRequest_t *cbrp)
 {
-       lock_ObtainWrite(&cm_callbackLock);
-       cbrp->callbackCount = cm_callbackCount;
-        cm_activeCallbackGrantingCalls++;
-        cbrp->startTime = osi_Time();
-        cbrp->serverp = NULL;
-       lock_ReleaseWrite(&cm_callbackLock);
+    lock_ObtainWrite(&cm_callbackLock);
+    cbrp->callbackCount = cm_callbackCount;
+    cm_activeCallbackGrantingCalls++;
+    cbrp->startTime = osi_Time();
+    cbrp->serverp = NULL;
+    lock_ReleaseWrite(&cm_callbackLock);
 }
 
 /* Called at the end of a callback-granting call, to remove the callback
@@ -667,82 +1506,108 @@ void cm_StartCallbackGrantingCall(cm_scache_t *scp, cm_callbackRequest_t *cbrp)
  * this locking hierarchy.
  */
 void cm_EndCallbackGrantingCall(cm_scache_t *scp, cm_callbackRequest_t *cbrp,
-       AFSCallBack *cbp, long flags)
+                                AFSCallBack *cbp, long flags)
 {
-       cm_racingRevokes_t *revp;               /* where we are */
-       cm_racingRevokes_t *nrevp;              /* where we'll be next */
-        int freeFlag;
-
-       lock_ObtainWrite(&cm_callbackLock);
-       if (flags & CM_CALLBACK_MAINTAINCOUNT) {
-               osi_assert(cm_activeCallbackGrantingCalls > 0);
-       }
-       else {
-               osi_assert(cm_activeCallbackGrantingCalls-- > 0);
-       }
-        if (cm_activeCallbackGrantingCalls == 0) freeFlag = 1;
-        else freeFlag = 0;
-
-       /* record the callback; we'll clear it below if we really lose it */
+    cm_racingRevokes_t *revp;          /* where we are */
+    cm_racingRevokes_t *nrevp;         /* where we'll be next */
+    int freeFlag;
+    cm_server_t * serverp = 0;
+    int discardScp = 0;
+
+    lock_ObtainWrite(&cm_callbackLock);
+    if (flags & CM_CALLBACK_MAINTAINCOUNT) {
+        osi_assert(cm_activeCallbackGrantingCalls > 0);
+    }
+    else {
+        osi_assert(cm_activeCallbackGrantingCalls-- > 0);
+    }
+    if (cm_activeCallbackGrantingCalls == 0) 
+        freeFlag = 1;
+    else 
+        freeFlag = 0;
+
+    /* record the callback; we'll clear it below if we really lose it */
+    if (cbrp) {
        if (scp) {
-               scp->cbServerp = cbrp->serverp;
-               scp->cbExpires = cbrp->startTime + cbp->ExpirationTime;
-       }
+            if (scp->cbServerp != cbrp->serverp) {
+                serverp = scp->cbServerp;
+                if (!freeFlag)
+                    cm_GetServer(cbrp->serverp);
+                scp->cbServerp = cbrp->serverp;
+            } else {
+                if (freeFlag)
+                    serverp = cbrp->serverp;
+            }
+            scp->cbExpires = cbrp->startTime + cbp->ExpirationTime;
+        } else {
+            if (freeFlag)
+                serverp = cbrp->serverp;
+        }
+        if (freeFlag)
+            cbrp->serverp = NULL;
+    }
 
-       /* a callback was actually revoked during our granting call, so
-        * run down the list of revoked fids, looking for ours.
-        * If activeCallbackGrantingCalls is zero, free the elements, too.
-        *
-         * May need to go through entire list just to do the freeing.
-        */
-       for(revp = cm_racingRevokesp; revp; revp = nrevp) {
-               nrevp = (cm_racingRevokes_t *) osi_QNext(&revp->q);
-               /* if this callback came in later than when we started the
-                 * callback-granting call, and if this fid is the right fid,
-                 * then clear the callback.
-                 */
-                if (scp && cbrp->callbackCount != cm_callbackCount
-                               && revp->callbackCount > cbrp->callbackCount
-                               && (
-                               (scp->fid.volume == revp->fid.volume &&
-                                 scp->fid.vnode == revp->fid.vnode &&
-                                 scp->fid.unique == revp->fid.unique)
-                            ||
-                                ((revp->flags & CM_RACINGFLAG_CANCELVOL) &&
-                                 scp->fid.volume == revp->fid.volume)
-                            ||
-                               (revp->flags & CM_RACINGFLAG_CANCELALL))) {
-                       /* this one matches */
-                       osi_Log4(afsd_logp,
-                       "Racing revoke scp %x old cbc %d rev cbc %d cur cbc %d",
-                                scp,
-                                cbrp->callbackCount, revp->callbackCount,
-                                cm_callbackCount);
-                       cm_DiscardSCache(scp);
-                       /*
-                        * Since we don't have a callback to preserve, it's
-                        * OK to drop the lock and re-obtain it.
-                        */
-                       lock_ReleaseMutex(&scp->mx);
-                       cm_CallbackNotifyChange(scp);
-                       lock_ObtainMutex(&scp->mx);
-                }
-                if (freeFlag) free(revp);
+    /* a callback was actually revoked during our granting call, so
+     * run down the list of revoked fids, looking for ours.
+     * If activeCallbackGrantingCalls is zero, free the elements, too.
+     *
+     * May need to go through entire list just to do the freeing.
+     */
+    for (revp = cm_racingRevokesp; revp; revp = nrevp) {
+        nrevp = (cm_racingRevokes_t *) osi_QNext(&revp->q);
+        /* if this callback came in later than when we started the
+         * callback-granting call, and if this fid is the right fid,
+         * then clear the callback.
+         */
+        if (scp && cbrp && cbrp->callbackCount != cm_callbackCount
+             && revp->callbackCount > cbrp->callbackCount
+             && (( scp->fid.volume == revp->fid.volume &&
+                   scp->fid.vnode == revp->fid.vnode &&
+                   scp->fid.unique == revp->fid.unique)
+                  ||
+                  ((revp->flags & CM_RACINGFLAG_CANCELVOL) &&
+                    scp->fid.volume == revp->fid.volume)
+                  ||
+                  (revp->flags & CM_RACINGFLAG_CANCELALL))) {
+            /* this one matches */
+            osi_Log4(afsd_logp,
+                      "Racing revoke scp 0x%x old cbc %d rev cbc %d cur cbc %d",
+                      scp,
+                      cbrp->callbackCount, revp->callbackCount,
+                      cm_callbackCount);
+            discardScp = 1;
         }
+        if (freeFlag) 
+            free(revp);
+    }
 
-       /* if we freed the list, zap the pointer to it */
-       if (freeFlag) cm_racingRevokesp = NULL;
+    /* if we freed the list, zap the pointer to it */
+    if (freeFlag) 
+        cm_racingRevokesp = NULL;
 
-       lock_ReleaseWrite(&cm_callbackLock);
+    lock_ReleaseWrite(&cm_callbackLock);
+
+    if ( discardScp ) {
+        cm_DiscardSCache(scp);
+        lock_ReleaseMutex(&scp->mx);
+        cm_CallbackNotifyChange(scp);
+        lock_ObtainMutex(&scp->mx);
+    }
+
+    if ( serverp ) {
+        lock_ObtainWrite(&cm_serverLock);
+        cm_FreeServer(serverp);
+        lock_ReleaseWrite(&cm_serverLock);
+    }
 }
 
 /* if flags is 1, we want to force the code to make one call, anyway.
  * called with locked scp; returns with same.
  */
 long cm_GetCallback(cm_scache_t *scp, struct cm_user *userp,
-       struct cm_req *reqp, long flags)
+                    struct cm_req *reqp, long flags)
 {
-       long code;
+    long code;
     cm_conn_t *connp;
     AFSFetchStatus afsStatus;
     AFSVolSync volSync;
@@ -752,124 +1617,140 @@ long cm_GetCallback(cm_scache_t *scp, struct cm_user *userp,
     int mustCall;
     long sflags;
     cm_fid_t sfid;
+    struct rx_connection * callp;
+
+    osi_Log4(afsd_logp, "GetCallback scp 0x%x cell %d vol %d flags %lX", 
+             scp, scp->fid.cell, scp->fid.volume, flags);
 
 #ifdef AFS_FREELANCE_CLIENT
-       // yj
-       // The case where a callback is needed on /afs is handled
-       // specially. We need to fetch the status by calling
-       // cm_MergeStatus and mark that cm_fakeDirCallback is 2
-       if (cm_freelanceEnabled &&
-        scp->fid.cell==AFS_FAKE_ROOT_CELL_ID &&
-               scp->fid.volume==AFS_FAKE_ROOT_VOL_ID &&
-               scp->fid.unique==0x1 &&
-               scp->fid.vnode==0x1) {
-               // Start by indicating that we're in the process
-               // of fetching the callback
+    // The case where a callback is needed on /afs is handled
+    // specially. We need to fetch the status by calling
+    // cm_MergeStatus and mark that cm_fakeDirCallback is 2
+    if (cm_freelanceEnabled) {
+        if (scp->fid.cell==AFS_FAKE_ROOT_CELL_ID &&
+             scp->fid.volume==AFS_FAKE_ROOT_VOL_ID &&
+             scp->fid.unique==0x1 &&
+             scp->fid.vnode==0x1) {
+            
+            // Start by indicating that we're in the process
+            // of fetching the callback
+            lock_ObtainMutex(&cm_Freelance_Lock);
+            osi_Log0(afsd_logp,"cm_getGetCallback fakeGettingCallback=1");
+            cm_fakeGettingCallback = 1;
+            lock_ReleaseMutex(&cm_Freelance_Lock);
+
+            // Fetch the status info 
+            cm_MergeStatus(scp, &afsStatus, &volSync, userp, 0);
 
-        lock_ObtainMutex(&cm_Freelance_Lock);
-               cm_fakeGettingCallback = 1;
-               lock_ReleaseMutex(&cm_Freelance_Lock);
-
-               // Fetch the status info 
-               cm_MergeStatus(scp, &afsStatus, &volSync, userp, 0);
-
-               // Indicate that the callback is not done
-               lock_ObtainMutex(&cm_Freelance_Lock);
-               cm_fakeDirCallback = 2;
-               // Indicate that we're no longer fetching the callback
-               cm_fakeGettingCallback = 0;
-               lock_ReleaseMutex(&cm_Freelance_Lock);
-
-               return 0;
-       }
-
-       if (scp->fid.cell==0x1 && scp->fid.volume==AFS_FAKE_ROOT_VOL_ID) {
-               osi_Log0(afsd_logp,"cm_getcallback should NEVER EVER get here... ");
-       }
-       // yj: end of getcallback modifications  ---------------
-               
+            // Indicate that the callback is not done
+            lock_ObtainMutex(&cm_Freelance_Lock);
+            osi_Log0(afsd_logp,"cm_getGetCallback fakeDirCallback=2");
+            cm_fakeDirCallback = 2;
+
+            // Indicate that we're no longer fetching the callback
+            osi_Log0(afsd_logp,"cm_getGetCallback fakeGettingCallback=0");
+            cm_fakeGettingCallback = 0;
+            lock_ReleaseMutex(&cm_Freelance_Lock);
+
+            return 0;
+        }
+
+        if (scp->fid.cell==AFS_FAKE_ROOT_CELL_ID && scp->fid.volume==AFS_FAKE_ROOT_VOL_ID) {
+            osi_Log0(afsd_logp,"cm_getcallback should NEVER EVER get here... ");
+        }
+    }
 #endif /* AFS_FREELANCE_CLIENT */
        
-       mustCall = (flags & 1);
-       cm_AFSFidFromFid(&tfid, &scp->fid);
-       while (1) {
-               if (!mustCall && cm_HaveCallback(scp)) return 0;
+    mustCall = (flags & 1);
+    cm_AFSFidFromFid(&tfid, &scp->fid);
+    while (1) {
+        if (!mustCall && cm_HaveCallback(scp)) {
+            osi_Log3(afsd_logp, "GetCallback Complete scp 0x%x cell %d vol %d", 
+                      scp, scp->fid.cell, scp->fid.volume);
+            return 0;
+        }
 
         /* turn off mustCall, since it has now forced us past the check above */
         mustCall = 0;
 
         /* otherwise, we have to make an RPC to get the status */
-               sflags = CM_SCACHESYNC_FETCHSTATUS | CM_SCACHESYNC_GETCALLBACK;
+        sflags = CM_SCACHESYNC_FETCHSTATUS | CM_SCACHESYNC_GETCALLBACK;
         cm_SyncOp(scp, NULL, NULL, NULL, 0, sflags);
         cm_StartCallbackGrantingCall(scp, &cbr);
         sfid = scp->fid;
-               lock_ReleaseMutex(&scp->mx);
+        lock_ReleaseMutex(&scp->mx);
                
-               /* now make the RPC */
-               osi_Log1(afsd_logp, "CALL FetchStatus vp %x", (long) scp);
+        /* now make the RPC */
+        osi_Log4(afsd_logp, "CALL FetchStatus scp 0x%x cell %d vol %d uniq %d", 
+                 (long) scp, scp->fid.cell, scp->fid.volume, scp->fid.unique);
         do {
-                       code = cm_Conn(&sfid, userp, reqp, &connp);
-            if (code) continue;
-               
-            code = RXAFS_FetchStatus(connp->callp, &tfid,
+            code = cm_Conn(&sfid, userp, reqp, &connp);
+            if (code) 
+                continue;
+
+            callp = cm_GetRxConn(connp);
+            code = RXAFS_FetchStatus(callp, &tfid,
                                      &afsStatus, &callback, &volSync);
+            rx_PutConnection(callp);
 
-               } while (cm_Analyze(connp, userp, reqp, &sfid, &volSync, NULL,
+        } while (cm_Analyze(connp, userp, reqp, &sfid, &volSync, NULL,
                             &cbr, code));
         code = cm_MapRPCError(code, reqp);
-               osi_Log0(afsd_logp, "CALL FetchStatus DONE");
+        if (code)
+            osi_Log4(afsd_logp, "CALL FetchStatus FAILURE code 0x%x scp 0x%x cell %d vol %d", 
+                     code, (long) scp, scp->fid.cell, scp->fid.volume);
+        else
+            osi_Log4(afsd_logp, "CALL FetchStatus SUCCESS scp 0x%x cell %d vol %d uniq %d", 
+                     (long) scp, scp->fid.cell, scp->fid.volume, scp->fid.unique);
 
-               lock_ObtainMutex(&scp->mx);
-        cm_SyncOpDone(scp, NULL, sflags);
-               if (code == 0) {
+        lock_ObtainMutex(&scp->mx);
+        if (code == 0) {
             cm_EndCallbackGrantingCall(scp, &cbr, &callback, 0);
             cm_MergeStatus(scp, &afsStatus, &volSync, userp, 0);
-               }   
-        else
-            cm_EndCallbackGrantingCall(NULL, NULL, NULL, 0);
+        } else {
+            cm_EndCallbackGrantingCall(NULL, &cbr, NULL, 0);
+        }
+        cm_SyncOpDone(scp, NULL, sflags);
 
         /* now check to see if we got an error */
-        if (code) return code;
+        if (code) {
+            osi_Log2(afsd_logp, "GetCallback Failed code 0x%x scp 0x%x -->",code, scp);
+            osi_Log4(afsd_logp, "            cell %d vol %d vn %d uniq %d",
+                     scp->fid.cell, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+            return code;
+        }
     }
 }
 
 /* called periodically by cm_daemon to shut down use of expired callbacks */
 void cm_CheckCBExpiration(void)
 {
-       int i;
-        cm_scache_t *scp;
-        long now;
+    int i;
+    cm_scache_t *scp;
+    unsigned long now;
         
-       now = osi_Time();
-       lock_ObtainWrite(&cm_scacheLock);
-        for(i=0; i<cm_hashTableSize; i++) {
-               for(scp = cm_hashTablep[i]; scp; scp=scp->nextp) {
-                       scp->refCount++;
-                       lock_ReleaseWrite(&cm_scacheLock);
-                       lock_ObtainMutex(&scp->mx);
-                       if (scp->cbServerp && now > scp->cbExpires) {
-                               cm_DiscardSCache(scp);
-                        }
-                       lock_ReleaseMutex(&scp->mx);
-                       lock_ObtainWrite(&cm_scacheLock);
-                        osi_assert(scp->refCount-- > 0);
-                }
+    osi_Log0(afsd_logp, "CheckCBExpiration");
+
+    now = osi_Time();
+    lock_ObtainWrite(&cm_scacheLock);
+    for (i=0; i<cm_data.hashTableSize; i++) {
+        for (scp = cm_data.hashTablep[i]; scp; scp=scp->nextp) {
+            cm_HoldSCacheNoLock(scp);
+            if (scp->cbExpires > 0 && (scp->cbServerp == NULL || now > scp->cbExpires)) {
+                lock_ReleaseWrite(&cm_scacheLock);
+                osi_Log4(afsd_logp, "Callback Expiration Discarding SCache scp 0x%x vol %u vn %u uniq %u", 
+                          scp, scp->fid.volume, scp->fid.vnode, scp->fid.unique);
+                lock_ObtainMutex(&scp->mx);
+                cm_DiscardSCache(scp);
+                lock_ReleaseMutex(&scp->mx);
+                cm_CallbackNotifyChange(scp);
+                lock_ObtainWrite(&cm_scacheLock);
+            }
+            cm_ReleaseSCacheNoLock(scp);
         }
-        lock_ReleaseWrite(&cm_scacheLock);
-}
+    }
+    lock_ReleaseWrite(&cm_scacheLock);
 
-/* debug interface: not implemented */
-int SRXAFSCB_GetCellByNum(struct rx_call *a_call, afs_int32 a_cellnum,
-                         char **a_name, serverList *a_hosts)
-{
-    /* XXXX */
-    return RXGEN_OPCODE;
+    osi_Log0(afsd_logp, "CheckCBExpiration Complete");
 }
 
-/* debug interface: not implemented */
-int SRXAFSCB_TellMeAboutYourself(struct rx_call *a_call, afs_int32 a_cellnum,
-                          char **a_name, serverList *a_hosts)
-{
-    /* XXXX */
-    return RXGEN_OPCODE;
-}