Windows: Add cm_req_t parameter to buf_Get* functions
[openafs.git] / src / WINNT / afsd / smb3.c
index fa1a30e..ade4503 100644 (file)
@@ -144,8 +144,6 @@ void OutputDebugF(clientchar_t * format, ...) {
     va_start( args, format );
     cm_ClientStrPrintfV(vbuffer, lengthof(vbuffer), format, args);
     osi_Log1(smb_logp, "%S", osi_LogSaveClientString(smb_logp, vbuffer));
-    cm_ClientStrCat(vbuffer, lengthof(vbuffer), _C("\n"));
-    OutputDebugStringW(vbuffer);
 }
 
 void OutputDebugHexDump(unsigned char * buffer, int len) {
@@ -159,8 +157,6 @@ void OutputDebugHexDump(unsigned char * buffer, int len) {
         if(!(i%16)) {
             if(i) {
                 osi_Log1(smb_logp, "%s", osi_LogSaveString(smb_logp, buf));
-                StringCchCatA(buf, lengthof(buf), "\r\n");
-                OutputDebugString(buf);
             }
             StringCchPrintfA(buf, lengthof(buf), "%5x", i);
             memset(buf+5,' ',80);
@@ -180,8 +176,6 @@ void OutputDebugHexDump(unsigned char * buffer, int len) {
     }    
     if(i) {
         osi_Log1(smb_logp, "%s", osi_LogSaveString(smb_logp, buf));
-        StringCchCatA(buf, lengthof(buf), "\r\n");
-        OutputDebugString(buf);
     }   
 }
 
@@ -686,11 +680,39 @@ long smb_ReceiveV3SessionSetupX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *
     clientchar_t usern[SMB_MAX_USERNAME_LENGTH];
     char *secBlobOut = NULL;
     int  secBlobOutLength = 0;
+    int  maxBufferSize = 0;
+    int  maxMpxCount = 0;
+    int  vcNumber = 0;
 
     /* Check for bad conns */
     if (vcp->flags & SMB_VCFLAG_REMOTECONN)
         return CM_ERROR_REMOTECONN;
 
+    /* maxBufferSize */
+    maxBufferSize = smb_GetSMBParm(inp, 2);
+    maxMpxCount = smb_GetSMBParm(inp, 3);
+    vcNumber = smb_GetSMBParm(inp, 4);
+
+    osi_Log3(smb_logp, "SESSION_SETUP_ANDX with MaxBufferSize=%d, MaxMpxCount=%d, VCNumber=%d",
+             maxBufferSize, maxMpxCount, vcNumber);
+
+    if (maxMpxCount > smb_maxMpxRequests) {
+        LogEvent(EVENTLOG_INFORMATION_TYPE, MSG_SMB_MAX_MPX_COUNT, maxMpxCount, smb_maxMpxRequests);
+        osi_Log2(smb_logp, "MaxMpxCount for client is too large (Client=%d, Server=%d)",
+                 maxMpxCount, smb_maxMpxRequests);
+    }
+
+    if (maxBufferSize < SMB_PACKETSIZE) {
+        LogEvent(EVENTLOG_INFORMATION_TYPE, MSG_SMB_MAX_BUFFER_SIZE, maxBufferSize, SMB_PACKETSIZE);
+        osi_Log2(smb_logp, "MaxBufferSize for client is too small (Client=%d, Server=%d)",
+                 maxBufferSize, SMB_PACKETSIZE);
+    }
+
+    if (vcNumber == 0) {
+        osi_Log0(smb_logp, "Resetting all VCs");
+        smb_MarkAllVCsDead(vcp);
+    }
+
     if (vcp->flags & SMB_VCFLAG_USENT) {
         if (smb_authType == SMB_AUTH_EXTENDED) {
             /* extended authentication */
@@ -1827,7 +1849,7 @@ long smb_ReceiveRAPNetShareGetInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_pack
     } else {
         userp = smb_GetTran2User(vcp, p);
         if (!userp) {
-            osi_Log1(smb_logp,"ReceiveTran2GetDfsReferral unable to resolve user [%d]", p->uid);
+            osi_Log1(smb_logp,"ReceiveRAPNetShareGetInfo unable to resolve user [%d]", p->uid);
             return CM_ERROR_BADSMB;
         }   
         code = cm_NameI(cm_data.rootSCachep, shareName,
@@ -2116,6 +2138,7 @@ long smb_ReceiveV3Tran2A(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
     int dataCount;
     int firstPacket;
     long code = 0;
+    DWORD oldTime, newTime;
 
     /* We sometimes see 0 word count.  What to do? */
     if (*inp->wctp == 0) {
@@ -2188,6 +2211,8 @@ long smb_ReceiveV3Tran2A(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
         osi_QRemove((osi_queue_t **) &smb_tran2AssemblyQueuep, &asp->q);
         lock_ReleaseWrite(&smb_globalLock);
 
+        oldTime = GetTickCount();
+
         /* now dispatch it */
         if ( asp->opcode >= 0 && asp->opcode < 20 && smb_tran2DispatchTable[asp->opcode].procp) {
             osi_Log4(smb_logp,"AFS Server - Dispatch-2 %s vcp[%p] lana[%d] lsn[%d]",myCrt_2Dispatch(asp->opcode),vcp,vcp->lana,vcp->lsn);
@@ -2207,6 +2232,46 @@ long smb_ReceiveV3Tran2A(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
             smb_SendTran2Error(vcp, asp, outp, code);
         }
 
+        newTime = GetTickCount();
+        if (newTime - oldTime > 45000) {
+            smb_user_t *uidp;
+            smb_fid_t *fidp;
+            clientchar_t *treepath = NULL;  /* do not free */
+            clientchar_t *pathname = NULL;
+            cm_fid_t afid = {0,0,0,0,0};
+
+            uidp = smb_FindUID(vcp, asp->uid, 0);
+            smb_LookupTIDPath(vcp, asp->tid, &treepath);
+            fidp = smb_FindFID(vcp, inp->fid, 0);
+
+            if (fidp) {
+                lock_ObtainMutex(&fidp->mx);
+                if (fidp->NTopen_pathp)
+                    pathname = fidp->NTopen_pathp;
+                if (fidp->scp)
+                    afid = fidp->scp->fid;
+            } else {
+                if (inp->stringsp->wdata)
+                    pathname = inp->stringsp->wdata;
+            }
+
+            afsi_log("Request %s duration %d ms user 0x%x \"%S\" pid 0x%x mid 0x%x tid 0x%x \"%S\" path? \"%S\" afid (%d.%d.%d.%d)", 
+                      myCrt_2Dispatch(asp->opcode), newTime - oldTime,
+                      asp->uid, uidp ? uidp->unp->name : NULL,
+                      asp->pid, asp->mid, asp->tid,
+                      treepath,
+                      pathname, 
+                      afid.cell, afid.volume, afid.vnode, afid.unique);
+
+            if (fidp)
+                lock_ReleaseMutex(&fidp->mx);
+
+            if (uidp)
+                smb_ReleaseUID(uidp);
+            if (fidp)
+                smb_ReleaseFID(fidp);
+        }
+
         /* free the input tran 2 packet */
         smb_FreeTran2Packet(asp);
     }
@@ -2325,6 +2390,22 @@ long smb_ReceiveTran2Open(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t *op)
         return 0;
     }
 
+    if (!cm_IsValidClientString(pathp)) {
+#ifdef DEBUG
+        clientchar_t * hexp;
+
+        hexp = cm_GetRawCharsAlloc(pathp, -1);
+        osi_Log1(smb_logp, "Tran2Open rejecting invalid name. [%S]",
+                 osi_LogSaveClientString(smb_logp, hexp));
+        if (hexp)
+            free(hexp);
+#else
+        osi_Log0(smb_logp, "Tran2Open rejecting invalid name");
+#endif
+        smb_FreeTran2Packet(outp);
+        return CM_ERROR_BADNTFILENAME;
+    }
+
 #ifdef DEBUG_VERBOSE
     {
         char *hexp, *asciip;
@@ -2384,7 +2465,7 @@ long smb_ReceiveTran2Open(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t *op)
             if ( WANTS_DFS_PATHNAMES(p) || pnc )
                 return CM_ERROR_PATH_NOT_COVERED;
             else
-                return CM_ERROR_BADSHARENAME;
+                return CM_ERROR_NOSUCHPATH;
         }
 #endif /* DFS_SUPPORT */
 
@@ -2414,7 +2495,7 @@ long smb_ReceiveTran2Open(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t *op)
             if ( WANTS_DFS_PATHNAMES(p) || pnc )
                 return CM_ERROR_PATH_NOT_COVERED;
             else
-                return CM_ERROR_BADSHARENAME;
+                return CM_ERROR_NOSUCHPATH;
         }
 #endif /* DFS_SUPPORT */
 
@@ -2694,6 +2775,7 @@ long smb_ReceiveTran2QFSInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t *
         /* attributes, defined in WINNT.H:
          *     FILE_CASE_SENSITIVE_SEARCH      0x1
          *     FILE_CASE_PRESERVED_NAMES       0x2
+         *      FILE_UNICODE_ON_DISK            0x4
         *      FILE_VOLUME_QUOTAS              0x10
          *     <no name defined>               0x4000
          *        If bit 0x4000 is not set, Windows 95 thinks
@@ -2703,14 +2785,9 @@ long smb_ReceiveTran2QFSInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t *
         qi.u.FSattributeInfo.attributes = 0x4003;
         /* The maxCompLength is supposed to be in bytes */
 #ifdef SMB_UNICODE
-        if ((vcp->flags & SMB_VCFLAG_USEUNICODE) == SMB_VCFLAG_USEUNICODE)
-            qi.u.FSattributeInfo.maxCompLength = MAX_PATH * sizeof(wchar_t);
-        else {
-#endif
-        qi.u.FSattributeInfo.maxCompLength = MAX_PATH;
-#ifdef SMB_UNICODE
-        }
+        qi.u.FSattributeInfo.attributes |= 0x04;
 #endif
+        qi.u.FSattributeInfo.maxCompLength = 255;
         smb_UnparseString(op, qi.u.FSattributeInfo.FSname, _C("AFS"), &sz, SMB_STRF_IGNORENUL);
         qi.u.FSattributeInfo.FSnameLength = sz;
 
@@ -2764,7 +2841,11 @@ int cm_GetShortNameProc(cm_scache_t *scp, cm_dirEntry_t *dep, void *vrockp,
 
     rockp = vrockp;
 
-    cm_FsStringToNormString(dep->name, -1, normName, sizeof(normName)/sizeof(clientchar_t));
+    if (cm_FsStringToNormString(dep->name, -1, normName, sizeof(normName)/sizeof(clientchar_t)) == 0) {
+        osi_Log1(smb_logp, "Skipping entry [%s]. Can't normalize FS string",
+                 osi_LogSaveString(smb_logp, dep->name));
+        return 0;
+    }
 
     /* compare both names and vnodes, though probably just comparing vnodes
      * would be safe enough.
@@ -2956,7 +3037,7 @@ long smb_ReceiveTran2QPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t
                         if ( WANTS_DFS_PATHNAMES(p) || pnc )
                             code = CM_ERROR_PATH_NOT_COVERED;
                         else
-                            code = CM_ERROR_BADSHARENAME;
+                            code = CM_ERROR_NOSUCHPATH;
                     } else
 #endif /* DFS_SUPPORT */
                     if (dscp->fileType == CM_SCACHETYPE_MOUNTPOINT && !dscp->mountRootFid.volume)
@@ -3005,7 +3086,7 @@ long smb_ReceiveTran2QPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t
         if ( WANTS_DFS_PATHNAMES(p) || pnc )
             code = CM_ERROR_PATH_NOT_COVERED;
         else
-            code = CM_ERROR_BADSHARENAME;
+            code = CM_ERROR_NOSUCHPATH;
         smb_SendTran2Error(vcp, p, opx, code);
         smb_FreeTran2Packet(outp);
         return 0;
@@ -3160,7 +3241,6 @@ long smb_ReceiveTran2SetPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
     return CM_ERROR_BADOP;
 #else
     long code = 0;
-    smb_fid_t *fidp;
     unsigned short infoLevel;
     clientchar_t * pathp;
     smb_tran2Packet_t *outp;
@@ -3244,7 +3324,7 @@ long smb_ReceiveTran2SetPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
                         if ( WANTS_DFS_PATHNAMES(p) || pnc )
                             code = CM_ERROR_PATH_NOT_COVERED;
                         else
-                            code = CM_ERROR_BADSHARENAME;
+                            code = CM_ERROR_NOSUCHPATH;
                     } else
 #endif /* DFS_SUPPORT */
                     if (dscp->fileType == CM_SCACHETYPE_MOUNTPOINT && !dscp->mountRootFid.volume)
@@ -3282,25 +3362,6 @@ long smb_ReceiveTran2SetPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
         return 0;
     }
 
-    fidp = smb_FindFIDByScache(vcp, scp);
-    if (!fidp) {
-        cm_ReleaseSCache(scp);
-        cm_ReleaseUser(userp);
-       smb_SendTran2Error(vcp, p, opx, code);
-        return 0;
-    }
-
-    lock_ObtainMutex(&fidp->mx);
-    if (!(fidp->flags & SMB_FID_OPENWRITE)) {
-       lock_ReleaseMutex(&fidp->mx);
-        cm_ReleaseSCache(scp);
-        smb_ReleaseFID(fidp);
-        cm_ReleaseUser(userp);
-        smb_SendTran2Error(vcp, p, opx, CM_ERROR_NOACCESS);
-        return 0;
-    }
-    lock_ReleaseMutex(&fidp->mx);
-
     outp = smb_GetTran2ResponsePacket(vcp, p, opx, 2, 0);
 
     outp->totalParms = 2;
@@ -3323,10 +3384,6 @@ long smb_ReceiveTran2SetPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
         }
        cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
 
-       lock_ReleaseWrite(&scp->rw);
-       lock_ObtainMutex(&fidp->mx);
-       lock_ObtainRead(&scp->rw);
-
         /* prepare for setattr call */
         attr.mask = CM_ATTRMASK_LENGTH;
         attr.length.LowPart = spi->u.QPstandardInfo.dataSize;
@@ -3335,7 +3392,6 @@ long smb_ReceiveTran2SetPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
        if (spi->u.QPstandardInfo.lastWriteDateTime != 0) {
            smb_UnixTimeFromSearchTime(&attr.clientModTime, spi->u.QPstandardInfo.lastWriteDateTime);
             attr.mask |= CM_ATTRMASK_CLIENTMODTIME;
-            fidp->flags |= SMB_FID_MTIMESETDONE;
         }
                
         if (spi->u.QPstandardInfo.attributes != 0) {
@@ -3353,7 +3409,6 @@ long smb_ReceiveTran2SetPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
             }
         }
         lock_ReleaseRead(&scp->rw);
-       lock_ReleaseMutex(&fidp->mx);
 
         /* call setattr */
         if (attr.mask)
@@ -3369,7 +3424,6 @@ long smb_ReceiveTran2SetPathInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
   done:
     cm_ReleaseSCache(scp);
     cm_ReleaseUser(userp);
-    smb_ReleaseFID(fidp);
     if (code == 0) 
         smb_SendTran2Packet(vcp, outp, opx);
     else 
@@ -3408,12 +3462,15 @@ long smb_ReceiveTran2QFileInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t
         return 0;
     }
 
+    lock_ObtainMutex(&fidp->mx);
     if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
+        lock_ReleaseMutex(&fidp->mx);
         smb_SendTran2Error(vcp, p, opx, CM_ERROR_NOSUCHFILE);
         smb_CloseFID(vcp, fidp, NULL, 0);
         smb_ReleaseFID(fidp);
         return 0;
     }
+    lock_ReleaseMutex(&fidp->mx);
 
     infoLevel = p->parmsp[1];
     if (infoLevel == SMB_QUERY_FILE_BASIC_INFO) 
@@ -3551,13 +3608,6 @@ long smb_ReceiveTran2SetFileInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
         return 0;
     }
 
-    if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
-        smb_SendTran2Error(vcp, p, opx, CM_ERROR_NOSUCHFILE);
-        smb_CloseFID(vcp, fidp, NULL, 0);
-        smb_ReleaseFID(fidp);
-        return 0;
-    }
-
     infoLevel = p->parmsp[1];
     osi_Log2(smb_logp,"ReceiveTran2SetFileInfo type 0x%x fid %d", infoLevel, fid);
     if (infoLevel > SMB_SET_FILE_END_OF_FILE_INFO || infoLevel < SMB_SET_FILE_BASIC_INFO) {
@@ -3569,6 +3619,14 @@ long smb_ReceiveTran2SetFileInfo(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet
     }
 
     lock_ObtainMutex(&fidp->mx);
+    if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
+        lock_ReleaseMutex(&fidp->mx);
+        smb_SendTran2Error(vcp, p, opx, CM_ERROR_NOSUCHFILE);
+        smb_CloseFID(vcp, fidp, NULL, 0);
+        smb_ReleaseFID(fidp);
+        return 0;
+    }
+
     if (infoLevel == SMB_SET_FILE_DISPOSITION_INFO && 
        !(fidp->flags & SMB_FID_OPENDELETE)) {
        osi_Log3(smb_logp,"smb_ReceiveTran2SetFileInfo !SMB_FID_OPENDELETE fidp 0x%p scp 0x%p fidp->flags 0x%x", 
@@ -3838,10 +3896,10 @@ smb_ReceiveTran2GetDFSReferral(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t
             /* 
              * We have a requested path.  Check to see if it is something 
              * we know about.
-                        *
-                        * But be careful because the name that we might be searching
-                        * for might be a known name with the final character stripped
-                        * off.  If we 
+             *
+             * But be careful because the name that we might be searching
+             * for might be a known name with the final character stripped
+             * off.
              */
             code = cm_NameI(cm_data.rootSCachep, &requestFileName[nbnLen+2],
                             CM_FLAG_FOLLOW | CM_FLAG_CASEFOLD | CM_FLAG_DFS_REFERRAL,
@@ -4128,17 +4186,22 @@ smb_ApplyV3DirListPatches(cm_scache_t *dscp, smb_dirListPatch_t **dirPatchespp,
                 switch (scp->fileType) {
                 case CM_SCACHETYPE_DIRECTORY:
                 case CM_SCACHETYPE_MOUNTPOINT:
-                case CM_SCACHETYPE_SYMLINK:
                 case CM_SCACHETYPE_INVALID:
                     fa->extFileAttributes = SMB_ATTR_DIRECTORY;
                     break;
+                case CM_SCACHETYPE_SYMLINK:
+                    if (cm_TargetPerceivedAsDirectory(scp->mountPointStringp))
+                        fa->extFileAttributes = SMB_ATTR_DIRECTORY;
+                    else
+                        fa->extFileAttributes = SMB_ATTR_NORMAL;
+                    break;
                 default:
                     /* if we get here we either have a normal file
                      * or we have a file for which we have never 
                      * received status info.  In this case, we can
                      * check the even/odd value of the entry's vnode.
-                     * even means it is to be treated as a directory
-                     * and odd means it is to be treated as a file.
+                     * odd means it is to be treated as a directory
+                     * and even means it is to be treated as a file.
                      */
                     if (mustFake && (scp->fid.vnode & 0x1))
                         fa->extFileAttributes = SMB_ATTR_DIRECTORY;
@@ -4163,10 +4226,15 @@ smb_ApplyV3DirListPatches(cm_scache_t *dscp, smb_dirListPatch_t **dirPatchespp,
                 switch (scp->fileType) {
                 case CM_SCACHETYPE_DIRECTORY:
                 case CM_SCACHETYPE_MOUNTPOINT:
-                case CM_SCACHETYPE_SYMLINK:
                 case CM_SCACHETYPE_INVALID:
                     fa->attributes = SMB_ATTR_DIRECTORY;
                     break;
+                case CM_SCACHETYPE_SYMLINK:
+                    if (cm_TargetPerceivedAsDirectory(scp->mountPointStringp))
+                        fa->attributes = SMB_ATTR_DIRECTORY;
+                    else
+                        fa->attributes = SMB_ATTR_NORMAL;
+                    break;
                 default:
                     /* if we get here we either have a normal file
                      * or we have a file for which we have never 
@@ -4233,7 +4301,9 @@ smb_ApplyV3DirListPatches(cm_scache_t *dscp, smb_dirListPatch_t **dirPatchespp,
 
             /* Copy attributes */
             lattr = smb_ExtAttributes(scp);
-            if (code == CM_ERROR_NOSUCHPATH && scp->fileType == CM_SCACHETYPE_SYMLINK ||
+            if ((code == CM_ERROR_NOSUCHPATH && 
+                (scp->fileType == CM_SCACHETYPE_SYMLINK && 
+                cm_TargetPerceivedAsDirectory(scp->mountPointStringp))) ||
                 code == CM_ERROR_PATH_NOT_COVERED && scp->fileType == CM_SCACHETYPE_DFSLINK) {
                 if (lattr == SMB_ATTR_NORMAL)
                     lattr = SMB_ATTR_DIRECTORY;
@@ -4492,7 +4562,7 @@ long smb_T2SearchDirSingle(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t *op
         if ( WANTS_DFS_PATHNAMES(p) || pnc )
            code = CM_ERROR_PATH_NOT_COVERED;
        else
-           code = CM_ERROR_BADSHARENAME;
+           code = CM_ERROR_NOSUCHPATH;
        smb_SendTran2Error(vcp, p, opx, code);
        smb_FreeTran2Packet(outp);
        return 0;
@@ -5012,7 +5082,7 @@ long smb_ReceiveTran2SearchDir(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t
                 if ( WANTS_DFS_PATHNAMES(p) || pnc )
                     code = CM_ERROR_PATH_NOT_COVERED;
                 else
-                    code = CM_ERROR_BADSHARENAME;
+                    code = CM_ERROR_NOSUCHPATH;
                 smb_SendTran2Error(vcp, p, opx, code);
                 smb_FreeTran2Packet(outp);
                 lock_ReleaseMutex(&dsp->mx);
@@ -5151,7 +5221,7 @@ long smb_ReceiveTran2SearchDir(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t
                 bufferp = NULL;
             }       
             lock_ReleaseWrite(&scp->rw);
-            code = buf_Get(scp, &thyper, &bufferp);
+            code = buf_Get(scp, &thyper, &req, &bufferp);
             lock_ObtainWrite(&scp->rw);
             if (code) {
                 osi_Log2(smb_logp, "T2 search dir buf_Get scp %x failed %d", scp, code);
@@ -5239,8 +5309,13 @@ long smb_ReceiveTran2SearchDir(smb_vc_t *vcp, smb_tran2Packet_t *p, smb_packet_t
         if (dep->fid.vnode == 0) 
             goto nextEntry;             /* This entry is not in use */
 
-        cm_FsStringToClientString(dep->name, -1, cfileName, lengthof(cfileName));
-        cm_ClientStringToNormString(cfileName, -1, normName, lengthof(normName));
+        if (cm_FsStringToClientString(dep->name, -1, cfileName, lengthof(cfileName)) == 0 ||
+            cm_ClientStringToNormString(cfileName, -1, normName, lengthof(normName)) == 0) {
+
+            osi_Log1(smb_logp, "Skipping entry [%s].  Can't convert or normalize FS String",
+                     osi_LogSaveString(smb_logp, dep->name));
+            goto nextEntry;
+        }
 
         /* Need 8.3 name? */
         NeedShortName = 0;
@@ -5604,6 +5679,8 @@ long smb_ReceiveV3OpenX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
         
     pathp = smb_ParseASCIIBlock(inp, smb_GetSMBData(inp, NULL), NULL,
                                 SMB_STRF_ANSIPATH);
+    if (!pathp)
+        return CM_ERROR_BADSMB;
 
     spacep = inp->spacep;
     smb_StripLastComponent(spacep->wdata, &lastNamep, pathp);
@@ -5652,6 +5729,21 @@ long smb_ReceiveV3OpenX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
         return 0;
     }
 
+    if (!cm_IsValidClientString(pathp)) {
+#ifdef DEBUG
+        clientchar_t * hexp;
+
+        hexp = cm_GetRawCharsAlloc(pathp, -1);
+        osi_Log1(smb_logp, "NTOpenX rejecting invalid name. [%S]",
+                 osi_LogSaveClientString(smb_logp, hexp));
+        if (hexp)
+            free(hexp);
+#else
+        osi_Log0(smb_logp, "NTOpenX rejecting invalid name");
+#endif
+        return CM_ERROR_BADNTFILENAME;
+    }
+
 #ifdef DEBUG_VERBOSE
     {
        char *hexp, *asciip;
@@ -5681,7 +5773,7 @@ long smb_ReceiveV3OpenX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
         if ( WANTS_DFS_PATHNAMES(inp) || pnc )
             return CM_ERROR_PATH_NOT_COVERED;
         else
-            return CM_ERROR_BADSHARENAME;
+            return CM_ERROR_NOSUCHPATH;
     }
 #endif /* DFS_SUPPORT */
 
@@ -5703,7 +5795,7 @@ long smb_ReceiveV3OpenX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
             if ( WANTS_DFS_PATHNAMES(inp) || pnc )
                 return CM_ERROR_PATH_NOT_COVERED;
             else
-                return CM_ERROR_BADSHARENAME;
+                return CM_ERROR_NOSUCHPATH;
         }
 #endif /* DFS_SUPPORT */
         /* otherwise, scp points to the parent directory.  Do a lookup,
@@ -5935,13 +6027,14 @@ long smb_ReceiveV3LockingX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
     if (!fidp)
        return CM_ERROR_BADFD;
     
+    lock_ObtainMutex(&fidp->mx);
     if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
+        lock_ReleaseMutex(&fidp->mx);
         smb_CloseFID(vcp, fidp, NULL, 0);
         smb_ReleaseFID(fidp);
         return CM_ERROR_NOSUCHFILE;
     }
 
-    lock_ObtainMutex(&fidp->mx);
     if (fidp->flags & SMB_FID_IOCTL) {
         osi_Log0(smb_logp, "smb_ReceiveV3Locking BadFD");
        lock_ReleaseMutex(&fidp->mx);
@@ -5958,7 +6051,6 @@ long smb_ReceiveV3LockingX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
 
     userp = smb_GetUserFromVCP(vcp, inp);
 
-
     lock_ObtainWrite(&scp->rw);
     code = cm_SyncOp(scp, NULL, userp, &req, 0,
                       CM_SCACHESYNC_NEEDCALLBACK
@@ -6005,7 +6097,7 @@ long smb_ReceiveV3LockingX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
             for (wlRequest = smb_allWaitingLocks; wlRequest; wlRequest = (smb_waitingLockRequest_t *) osi_QNext(&wlRequest->q))
             {
                 for (wl = wlRequest->locks; wl; wl = (smb_waitingLock_t *) osi_QNext(&wl->q)) {
-                    if (wl->key == key && LargeIntegerEqualTo(wl->LOffset, LOffset) && 
+                    if (cm_KeyEquals(&wl->key, &key, 0) && LargeIntegerEqualTo(wl->LOffset, LOffset) && 
                         LargeIntegerEqualTo(wl->LLength, LLength)) {
                         wl->state = SMB_WAITINGLOCKSTATE_CANCELLED;
                         goto found_lock_request;
@@ -6026,7 +6118,7 @@ long smb_ReceiveV3LockingX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
 
         key = cm_GenerateKey(vcp->vcID, pid, fidp->fid);
 
-        code = cm_Unlock(scp, LockType, LOffset, LLength, key, userp, &req);
+        code = cm_Unlock(scp, LockType, LOffset, LLength, key, 0, userp, &req);
 
         if (code) 
             goto done;
@@ -6148,7 +6240,7 @@ long smb_ReceiveV3LockingX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
 
                 wlNext = (smb_waitingLock_t *) osi_QNext(&wl->q);
 
-                ul_code = cm_Unlock(scp, LockType, wl->LOffset, wl->LLength, wl->key, userp, &req);
+                ul_code = cm_Unlock(scp, LockType, wl->LOffset, wl->LLength, wl->key, 0, userp, &req);
                 
                 if(ul_code != 0) {
                     osi_Log1(smb_logp, "smb_ReceiveV3Locking cm_Unlock returns code %d", ul_code);
@@ -6221,13 +6313,14 @@ long smb_ReceiveV3GetAttributes(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *
     if (!fidp)
        return CM_ERROR_BADFD;
     
+    lock_ObtainMutex(&fidp->mx);
     if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
+        lock_ReleaseMutex(&fidp->mx);
         smb_CloseFID(vcp, fidp, NULL, 0);
         smb_ReleaseFID(fidp);
         return CM_ERROR_NOSUCHFILE;
     }
 
-    lock_ObtainMutex(&fidp->mx);
     if (fidp->flags & SMB_FID_IOCTL) {
        lock_ReleaseMutex(&fidp->mx);
        smb_ReleaseFID(fidp);
@@ -6311,13 +6404,14 @@ long smb_ReceiveV3SetAttributes(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *
     if (!fidp)
        return CM_ERROR_BADFD;
     
+    lock_ObtainMutex(&fidp->mx);
     if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
+        lock_ReleaseMutex(&fidp->mx);
         smb_CloseFID(vcp, fidp, NULL, 0);
         smb_ReleaseFID(fidp);
         return CM_ERROR_NOSUCHFILE;
     }
 
-    lock_ObtainMutex(&fidp->mx);
     if (fidp->flags & SMB_FID_IOCTL) {
        lock_ReleaseMutex(&fidp->mx);
        smb_ReleaseFID(fidp);
@@ -6330,7 +6424,6 @@ long smb_ReceiveV3SetAttributes(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *
         
     userp = smb_GetUserFromVCP(vcp, inp);
         
-        
     /* now prepare to call cm_setattr.  This message only sets various times,
      * and AFS only implements mtime, and we'll set the mtime if that's
      * requested.  The others we'll ignore.
@@ -6369,6 +6462,7 @@ long smb_ReceiveV3WriteX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
     smb_fid_t *fidp;
     smb_t *smbp = (smb_t*) inp;
     long code = 0;
+    cm_scache_t *scp;
     cm_user_t *userp;
     char *op;
     int inDataBlockCount;
@@ -6405,20 +6499,31 @@ long smb_ReceiveV3WriteX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
     if (!fidp)
         return CM_ERROR_BADFD;
         
+    lock_ObtainMutex(&fidp->mx);
     if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
+        lock_ReleaseMutex(&fidp->mx);
         smb_CloseFID(vcp, fidp, NULL, 0);
         smb_ReleaseFID(fidp);
         return CM_ERROR_NOSUCHFILE;
     }
 
-    lock_ObtainMutex(&fidp->mx);
     if (fidp->flags & SMB_FID_IOCTL) {
        lock_ReleaseMutex(&fidp->mx);
         code = smb_IoctlV3Write(fidp, vcp, inp, outp);
        smb_ReleaseFID(fidp);
        return code;
     }
+
+    if (!fidp->scp) {
+        lock_ReleaseMutex(&fidp->mx);
+        smb_ReleaseFID(fidp);
+        return CM_ERROR_BADFDOP;
+    }
+
+    scp = fidp->scp;
+    cm_HoldSCache(scp);
     lock_ReleaseMutex(&fidp->mx);
+
     userp = smb_GetUserFromVCP(vcp, inp);
 
     /* special case: 0 bytes transferred means there is no data
@@ -6430,7 +6535,6 @@ long smb_ReceiveV3WriteX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
         cm_key_t key;
         LARGE_INTEGER LOffset;
         LARGE_INTEGER LLength;
-        cm_scache_t * scp;
 
         pid = smbp->pid;
         key = cm_GenerateKey(vcp->vcID, pid, fd);
@@ -6440,7 +6544,6 @@ long smb_ReceiveV3WriteX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
         LLength.HighPart = 0;
         LLength.LowPart = count;
 
-        scp = fidp->scp;
         lock_ObtainWrite(&scp->rw);
         code = cm_LockCheckWrite(scp, LOffset, LLength, key);
         lock_ReleaseWrite(&scp->rw);
@@ -6461,8 +6564,8 @@ long smb_ReceiveV3WriteX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
      */
     lock_ObtainMutex(&fidp->mx);
     if ((fidp->flags & SMB_FID_MTIMESETDONE) != SMB_FID_MTIMESETDONE) {
-        fidp->scp->mask |= CM_SCACHEMASK_CLIENTMODTIME;
-        fidp->scp->clientModTime = time(NULL);
+        scp->mask |= CM_SCACHEMASK_CLIENTMODTIME;
+        scp->clientModTime = time(NULL);
     }
     lock_ReleaseMutex(&fidp->mx);
 
@@ -6488,6 +6591,8 @@ long smb_ReceiveV3WriteX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
     smb_SetSMBDataLength(outp, 0);
 
  done:
+
+    cm_ReleaseSCache(scp);
     cm_ReleaseUser(userp);
     smb_ReleaseFID(fidp);
 
@@ -6505,6 +6610,7 @@ long smb_ReceiveV3ReadX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
     smb_fid_t *fidp;
     smb_t *smbp = (smb_t*) inp;
     long code = 0;
+    cm_scache_t *scp;
     cm_user_t *userp;
     cm_key_t key;
     char *op;
@@ -6544,28 +6650,39 @@ long smb_ReceiveV3ReadX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
         return CM_ERROR_BADFD;
     }
 
+    lock_ObtainMutex(&fidp->mx);
     if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
+        lock_ReleaseMutex(&fidp->mx);
         smb_CloseFID(vcp, fidp, NULL, 0);
         smb_ReleaseFID(fidp);
         return CM_ERROR_NOSUCHFILE;
     }
 
+    if (!fidp->scp) {
+        lock_ReleaseMutex(&fidp->mx);
+        smb_ReleaseFID(fidp);
+        return CM_ERROR_BADFDOP;
+    }
+
+    scp = fidp->scp;
+    cm_HoldSCache(scp);
+    lock_ReleaseMutex(&fidp->mx);
+
     pid = smbp->pid;
     key = cm_GenerateKey(vcp->vcID, pid, fd);
     {
         LARGE_INTEGER LOffset, LLength;
-        cm_scache_t *scp;
 
         LOffset.HighPart = offset.HighPart;
         LOffset.LowPart = offset.LowPart;
         LLength.HighPart = 0;
         LLength.LowPart = count;
 
-        scp = fidp->scp;
         lock_ObtainWrite(&scp->rw);
         code = cm_LockCheckRead(scp, LOffset, LLength, key);
         lock_ReleaseWrite(&scp->rw);
     }
+    cm_ReleaseSCache(scp);
 
     if (code) {
         smb_ReleaseFID(fidp);
@@ -6810,15 +6927,21 @@ long smb_ReceiveNTCreateX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
         return 0;
     }
 
-#ifdef DEBUG_VERBOSE
-    {
-       char *hexp, *asciip;
-       asciip = (lastNamep? lastNamep : realPathp);
-       hexp = osi_HexifyString( asciip );
-       DEBUG_EVENT2("AFS", "NTCreateX H[%s] A[%s]", hexp, asciip);
+    if (!cm_IsValidClientString(realPathp)) {
+#ifdef DEBUG
+        clientchar_t * hexp;
+
+        hexp = cm_GetRawCharsAlloc(realPathp, -1);
+        osi_Log1(smb_logp, "NTCreateX rejecting invalid name. [%S]",
+                 osi_LogSaveClientString(smb_logp, hexp));
+        if (hexp)
        free(hexp);
-    }
+#else
+        osi_Log0(smb_logp, "NTCreateX rejecting invalid name");
 #endif
+        free(realPathp);
+        return CM_ERROR_BADNTFILENAME;
+    }
 
     userp = smb_GetUserFromVCP(vcp, inp);
     if (!userp) {
@@ -6914,7 +7037,7 @@ long smb_ReceiveNTCreateX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
                 if ( WANTS_DFS_PATHNAMES(inp) || pnc )
                     return CM_ERROR_PATH_NOT_COVERED;
                 else
-                    return CM_ERROR_BADSHARENAME;
+                    return CM_ERROR_NOSUCHPATH;
             }
 #endif /* DFS_SUPPORT */
             code = cm_Lookup(dscp, (lastNamep)?(lastNamep+1):realPathp, CM_FLAG_FOLLOW,
@@ -6948,7 +7071,7 @@ long smb_ReceiveNTCreateX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
             if ( WANTS_DFS_PATHNAMES(inp) || pnc )
                 return CM_ERROR_PATH_NOT_COVERED;
             else
-                return CM_ERROR_BADSHARENAME;
+                return CM_ERROR_NOSUCHPATH;
         }
 #endif /* DFS_SUPPORT */
         /* we might have scp but not dscp */
@@ -6988,7 +7111,7 @@ long smb_ReceiveNTCreateX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
                     if ( WANTS_DFS_PATHNAMES(inp) || pnc )
                         return CM_ERROR_PATH_NOT_COVERED;
                     else
-                        return CM_ERROR_BADSHARENAME;
+                        return CM_ERROR_NOSUCHPATH;
                 }
 #endif /* DFS_SUPPORT */
 
@@ -7479,15 +7602,15 @@ long smb_ReceiveNTCreateX(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
     smb_SetSMBDataLength(outp, 0);
 
     if ((fidp->flags & SMB_FID_EXECUTABLE) && 
-        LargeIntegerGreaterThanZero(fidp->scp->length) && 
+        LargeIntegerGreaterThanZero(scp->length) && 
         !(scp->flags & CM_SCACHEFLAG_PREFETCHING)) {
         prefetch = 1;
     }
     lock_ReleaseRead(&scp->rw);
 
     if (prefetch)
-        cm_QueueBKGRequest(fidp->scp, cm_BkgPrefetch, 0, 0,
-                           fidp->scp->length.LowPart, fidp->scp->length.HighPart, 
+        cm_QueueBKGRequest(scp, cm_BkgPrefetch, 0, 0,
+                           scp->length.LowPart, scp->length.HighPart, 
                            userp);
 
 
@@ -7631,15 +7754,21 @@ long smb_ReceiveNTTranCreate(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *out
      * Will add it if necessary.
      */
 
-#ifdef DEBUG_VERBOSE
-    {
-        char *hexp, *asciip;
-        asciip = (lastNamep? lastNamep : realPathp);
-        hexp = osi_HexifyString( asciip );
-        DEBUG_EVENT2("AFS", "NTTranCreate H[%s] A[%s]", hexp, asciip);
+    if (!cm_IsValidClientString(realPathp)) {
+#ifdef DEBUG
+        clientchar_t * hexp;
+
+        hexp = cm_GetRawCharsAlloc(realPathp, -1);
+        osi_Log1(smb_logp, "NTTranCreate rejecting invalid name. [%S]",
+                 osi_LogSaveClientString(smb_logp, hexp));
+        if (hexp)
         free(hexp);
-    }
+#else
+        osi_Log0(smb_logp, "NTTranCreate rejecting invalid name.");
 #endif
+        free(realPathp);
+        return CM_ERROR_BADNTFILENAME;
+    }
 
     userp = smb_GetUserFromVCP(vcp, inp);
     if (!userp) {
@@ -7730,7 +7859,7 @@ long smb_ReceiveNTTranCreate(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *out
                 if ( WANTS_DFS_PATHNAMES(inp) || pnc )
                     return CM_ERROR_PATH_NOT_COVERED;
                 else
-                    return CM_ERROR_BADSHARENAME;
+                    return CM_ERROR_NOSUCHPATH;
             }
 #endif /* DFS_SUPPORT */
             code = cm_Lookup(dscp, (lastNamep)?(lastNamep+1):realPathp, CM_FLAG_FOLLOW,
@@ -7764,7 +7893,7 @@ long smb_ReceiveNTTranCreate(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *out
             if ( WANTS_DFS_PATHNAMES(inp) || pnc )
                 return CM_ERROR_PATH_NOT_COVERED;
             else
-                return CM_ERROR_BADSHARENAME;
+                return CM_ERROR_NOSUCHPATH;
         }
 #endif /* DFS_SUPPORT */
     }
@@ -7789,7 +7918,7 @@ long smb_ReceiveNTTranCreate(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *out
                 if ( WANTS_DFS_PATHNAMES(inp) || pnc )
                     return CM_ERROR_PATH_NOT_COVERED;
                 else
-                    return CM_ERROR_BADSHARENAME;
+                    return CM_ERROR_NOSUCHPATH;
             }
 #endif /* DFS_SUPPORT */
         } else
@@ -8236,15 +8365,15 @@ long smb_ReceiveNTTranCreate(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *out
     }
 
     if ((fidp->flags & SMB_FID_EXECUTABLE) && 
-         LargeIntegerGreaterThanZero(fidp->scp->length) && 
+         LargeIntegerGreaterThanZero(scp->length) && 
          !(scp->flags & CM_SCACHEFLAG_PREFETCHING)) {
         prefetch = 1;
     }
     lock_ReleaseRead(&scp->rw);
 
     if (prefetch)
-        cm_QueueBKGRequest(fidp->scp, cm_BkgPrefetch, 0, 0,
-                           fidp->scp->length.LowPart, fidp->scp->length.HighPart, 
+        cm_QueueBKGRequest(scp, cm_BkgPrefetch, 0, 0,
+                           scp->length.LowPart, scp->length.HighPart, 
                            userp);
 
     osi_Log1(smb_logp, "SMB NTTranCreate opening fid %d", fidp->fid);
@@ -8278,11 +8407,16 @@ long smb_ReceiveNTTranNotifyChange(smb_vc_t *vcp, smb_packet_t *inp,
         return CM_ERROR_BADFD;
     }
 
+    lock_ObtainMutex(&fidp->mx);
     if (fidp->scp && (fidp->scp->flags & CM_SCACHEFLAG_DELETED)) {
+        lock_ReleaseMutex(&fidp->mx);
         smb_CloseFID(vcp, fidp, NULL, 0);
         smb_ReleaseFID(fidp);
         return CM_ERROR_NOSUCHFILE;
     }
+    scp = fidp->scp;
+    cm_HoldSCache(scp);
+    lock_ReleaseMutex(&fidp->mx);
 
     /* Create a copy of the Directory Watch Packet to use when sending the
      * notification if in the future a matching change is detected.
@@ -8301,7 +8435,6 @@ long smb_ReceiveNTTranNotifyChange(smb_vc_t *vcp, smb_packet_t *inp,
     smb_Directory_Watches = savedPacketp;
     lock_ReleaseMutex(&smb_Dir_Watch_Lock);
 
-    scp = fidp->scp;
     osi_Log3(smb_logp,"smb_ReceiveNTTranNotifyChange fidp 0x%p scp 0x%p file \"%S\"", 
              fidp, scp, osi_LogSaveClientString(smb_logp, fidp->NTopen_wholepathp));
     osi_Log3(smb_logp, "Request for NotifyChange filter 0x%x fid %d wtree %d",
@@ -8337,6 +8470,7 @@ long smb_ReceiveNTTranNotifyChange(smb_vc_t *vcp, smb_packet_t *inp,
     else
         scp->flags |= CM_SCACHEFLAG_WATCHED;
     lock_ReleaseWrite(&scp->rw);
+    cm_ReleaseSCache(scp);
     smb_ReleaseFID(fidp);
 
     outp->flags |= SMB_PACKETFLAG_NOSEND;
@@ -8548,9 +8682,7 @@ void smb_NotifyChange(DWORD action, DWORD notifyFilter,
             osi_Log1(smb_logp," skipping fidp->scp[%x]", fidp->scp);
             lastWatch = watch;
             watch = watch->nextp;
-            lock_ReleaseMutex(&smb_Dir_Watch_Lock);
             smb_ReleaseFID(fidp);
-            lock_ObtainMutex(&smb_Dir_Watch_Lock);
             continue;
         }
 
@@ -8589,9 +8721,6 @@ void smb_NotifyChange(DWORD action, DWORD notifyFilter,
         else
             lastWatch->nextp = nextWatch;
 
-        /* The watch is off the list, its ours now, safe to drop the lock */
-        lock_ReleaseMutex(&smb_Dir_Watch_Lock);
-
         /* Turn off WATCHED flag in dscp */
         lock_ObtainWrite(&dscp->rw);
         if (wtree)
@@ -8694,7 +8823,6 @@ void smb_NotifyChange(DWORD action, DWORD notifyFilter,
         smb_FreePacket(watch);
 
         smb_ReleaseFID(fidp);
-        lock_ObtainMutex(&smb_Dir_Watch_Lock);
         watch = nextWatch;
     }
     lock_ReleaseMutex(&smb_Dir_Watch_Lock);
@@ -8740,12 +8868,14 @@ long smb_ReceiveNTCancel(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
 
                 scp = fidp->scp;
                osi_Log2(smb_logp,"smb_ReceiveNTCancel fidp 0x%p scp 0x%p", fidp, scp);
-                lock_ObtainWrite(&scp->rw);
-                if (watchtree)
-                    scp->flags &= ~CM_SCACHEFLAG_WATCHEDSUBTREE;
-                else
-                    scp->flags &= ~CM_SCACHEFLAG_WATCHED;
-                lock_ReleaseWrite(&scp->rw);
+                if (scp) {
+                    lock_ObtainWrite(&scp->rw);
+                   if (watchtree)
+                        scp->flags &= ~CM_SCACHEFLAG_WATCHEDSUBTREE;
+                    else
+                       scp->flags &= ~CM_SCACHEFLAG_WATCHED;
+                    lock_ReleaseWrite(&scp->rw);
+                }
                 smb_ReleaseFID(fidp);
             } else {
                 osi_Log2(smb_logp,"NTCancel unable to resolve fid [%d] in vcp[%x]", fid,vcp);
@@ -8800,7 +8930,11 @@ long smb_ReceiveNTRename(smb_vc_t *vcp, smb_packet_t *inp, smb_packet_t *outp)
 
     tp = smb_GetSMBData(inp, NULL);
     oldPathp = smb_ParseASCIIBlock(inp, tp, &tp, 0);
+    if (!oldPathp)
+        return CM_ERROR_BADSMB;
     newPathp = smb_ParseASCIIBlock(inp, tp, &tp, 0);
+    if (!newPathp)
+        return CM_ERROR_BADSMB;
 
     osi_Log3(smb_logp, "NTRename for [%S]->[%S] type [%s]",
              osi_LogSaveClientString(smb_logp, oldPathp),