/*++ Copyright (c) 1996 Microsoft Corporation Module Name: fmgum.c Abstract: Cluster FM Global Update processing routines. Author: Rod Gamache (rodga) 24-Apr-1996 Revision History: --*/ #include "fmp.h" #include "ntrtl.h" #if NO_SHARED_LOCKS extern CRITICAL_SECTION gLockDmpRoot; #else extern RTL_RESOURCE gLockDmpRoot; #endif #define LOG_MODULE FMGUM DWORD WINAPI FmpGumReceiveUpdates( IN DWORD Context, IN BOOL SourceNode, IN DWORD BufferLength, IN PVOID Buffer ) /*++ Routine Description: Updates the specified resource (contained within Buffer) with a new state. Arguments: Context - The message update type. SourceNode - TRUE if this is the source node for this update. FALSE otherwise. BufferLength - Length of the received buffer. Buffer - The actual buffer Returns: ERROR_SUCCESS --*/ { PFM_RESOURCE resource; // // Chittur Subbaraman (chitturs) - 4/18/99 // // If FM groups are not fully initialized or FM is shutting down, then // don't do anything. // if ( !FmpFMGroupsInited || FmpShutdown ) { return(ERROR_SUCCESS); } switch ( Context ) { case FmUpdateFailureCount: { PGUM_FAILURE_COUNT failureCount; PFM_GROUP group; // // This update type is always sent. // On the originating node, all of the work must be done by // the sending thread. // On the non-originating nodes, no locks can be acquired! This // would cause hang situations with operations like move. // ... this is okay, since the locking must be done on the sending // node anyway, which owns the group. // if ( SourceNode == FALSE ) { if ( BufferLength <= sizeof(GUM_FAILURE_COUNT) ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] Gum FailureCount receive buffer too small!\n"); return(ERROR_SUCCESS); } failureCount = (PGUM_FAILURE_COUNT)Buffer; group = OmReferenceObjectById( ObjectTypeGroup, (LPCWSTR)&failureCount->GroupId[0] ); if ( group == NULL ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] Gum FailureCount failed to find group %1!ws!\n", failureCount->GroupId); return(ERROR_SUCCESS); } ClRtlLogPrint(LOG_NOISE, "[FM] GUM update failure count %1!ws!, count %2!u!\n", failureCount->GroupId, failureCount->Count); //FmpAcquireLocalGroupLock( group ); if ( group->OwnerNode == NmLocalNode ) { ClRtlLogPrint(LOG_NOISE, "[FM] Gum FailureCount wrong owner for %1!ws!\n", failureCount->GroupId); } else { group->NumberOfFailures = failureCount->Count; if ( failureCount->NewTime ) { group->FailureTime = GetTickCount(); } } //FmpReleaseLocalGroupLock( group ); OmDereferenceObject( group ); } break; } case FmUpdateCreateGroup: { PGUM_CREATE_GROUP GumGroup; DWORD Status = ERROR_SUCCESS; GumGroup = (PGUM_CREATE_GROUP)Buffer; Status = FmpUpdateCreateGroup( GumGroup, SourceNode ); return(Status); } case FmUpdateCreateResource: { DWORD dwStatus = ERROR_SUCCESS; PGUM_CREATE_RESOURCE GumResource = (PGUM_CREATE_RESOURCE)Buffer; dwStatus = FmpUpdateCreateResource( GumResource ); return( dwStatus ); } case FmUpdateAddPossibleNode: case FmUpdateRemovePossibleNode: { PGUM_CHANGE_POSSIBLE_NODE pGumChange; PFM_RESOURCE pResource; LPWSTR pszResourceId; LPWSTR pszNodeId; PNM_NODE pNode; DWORD dwStatus; DWORD dwControlCode; PFMP_POSSIBLE_NODE pPossibleNode; pGumChange = (PGUM_CHANGE_POSSIBLE_NODE)Buffer; pszResourceId = pGumChange->ResourceId; pszNodeId = (LPWSTR)((PCHAR)pszResourceId + pGumChange->ResourceIdLen); pResource = OmReferenceObjectById(ObjectTypeResource,pszResourceId); pNode = OmReferenceObjectById(ObjectTypeNode, pszNodeId); CL_ASSERT(pResource != NULL); CL_ASSERT(pNode != NULL); pPossibleNode = LocalAlloc( LMEM_FIXED, sizeof(FMP_POSSIBLE_NODE) ); if ( pPossibleNode == NULL ) { return(ERROR_NOT_ENOUGH_MEMORY); } if (Context == FmUpdateAddPossibleNode) { dwControlCode = CLUSCTL_RESOURCE_ADD_OWNER; } else { dwControlCode = CLUSCTL_RESOURCE_REMOVE_OWNER; } dwStatus = FmpUpdateChangeResourceNode(SourceNode, pResource, pNode, dwControlCode); //if status is not successful then return, else notify //resource dlls if (dwStatus != ERROR_SUCCESS) { //dereference the objects OmDereferenceObject(pResource); OmDereferenceObject(pNode); //free the memory LocalFree(pPossibleNode); return(dwStatus); } pPossibleNode->Resource = pResource; pPossibleNode->Node = pNode; pPossibleNode->ControlCode = dwControlCode; // // Tell the resource about the ADD/REMOVE in a worker thread. // FmpPostWorkItem( FM_EVENT_RESOURCE_CHANGE, pPossibleNode, 0 ); // // Chittur Subbaraman (chitturs) - 6/7/99 // // Don't reference pPossibleNode any more. It could have // been freed by the worker thread by the time you get // here. // ClusterEvent( CLUSTER_EVENT_RESOURCE_PROPERTY_CHANGE, pResource ); // Let the worker thread perform the derefs/Frees return(dwStatus); } case FmUpdateJoin: break; case FmUpdateCreateResourceType: { DWORD dwStatus; dwStatus = FmpUpdateCreateResourceType( Buffer ); return( dwStatus ); } break; case FmUpdateDeleteResourceType: { BOOL ResourceExists = FALSE; PFM_RESTYPE Type; Type = OmReferenceObjectById( ObjectTypeResType, (LPWSTR)Buffer); if (Type == NULL) { return(ERROR_CLUSTER_RESOURCE_TYPE_NOT_FOUND); } // // Make sure no resources exist of this type. // OmEnumObjects( ObjectTypeResource, FmpFindResourceType, Type, &ResourceExists); if (ResourceExists) { OmDereferenceObject(Type); return(ERROR_DIR_NOT_EMPTY); } // // We need to dereference the object twice to get // rid of it. But then any notification handlers will // not get a chance to see the object by the time // the handler gets called. So we use the EP_DEREF_CONTEXT // flag to get the event processor to do the second deref // once everything has been dispatched. // FmpDeleteResType(Type); ClusterEventEx( CLUSTER_EVENT_RESTYPE_DELETED, EP_DEREF_CONTEXT, Type ); } break; case FmUpdateChangeGroup: { PGUM_CHANGE_GROUP pGumChange; PFM_RESOURCE pResource; LPWSTR pszResourceId; LPWSTR pszGroupId; PFM_GROUP pNewGroup; DWORD dwStatus; DWORD dwClusterHighestVersion; pGumChange = (PGUM_CHANGE_GROUP)Buffer; pszResourceId = pGumChange->ResourceId; pszGroupId = (LPWSTR)((PCHAR)pszResourceId + pGumChange->ResourceIdLen); // // Find the specified resource and group. // pResource = OmReferenceObjectById(ObjectTypeResource, pszResourceId); if (pResource == NULL) { return(ERROR_RESOURCE_NOT_FOUND); } pNewGroup = OmReferenceObjectById(ObjectTypeGroup, pszGroupId); if (pNewGroup == NULL) { OmDereferenceObject(pResource); return(ERROR_SUCCESS); } dwStatus = FmpUpdateChangeResourceGroup(SourceNode, pResource, pNewGroup); OmDereferenceObject(pNewGroup); OmDereferenceObject(pResource); return(dwStatus); } break; default: { } ClRtlLogPrint(LOG_UNUSUAL,"[FM] Gum received bad context, %1!u!\n", Context); } return(ERROR_SUCCESS); } // FmpGumReceiveUpdates DWORD FmpUpdateChangeQuorumResource( IN BOOL SourceNode, IN LPCWSTR NewQuorumResourceId, IN LPCWSTR szRootClusFilePath, IN LPDWORD pdwMaxQuorumLogSize ) /*++ Routine Description: Perform updates related to changing of the quorum resource. Arguments: Return Value: ERROR_SUCCESS if successful. A Win32 error code otherwise. --*/ { PFM_RESOURCE pResource; PFM_RESOURCE pOldQuoResource=NULL; DWORD dwStatus; WCHAR lpszCheckPtFile[MAX_PATH]; DWORD dwChkPtSeq; HDMKEY ResKey; HLOCALXSACTION hXsaction = NULL; HLOG hNewQuoLog=NULL; WCHAR szQuorumLogPath[MAX_PATH]; if ( !FmpFMGroupsInited || FmpShutdown ) { return(ERROR_SUCCESS); } lstrcpyW(szQuorumLogPath, szRootClusFilePath); //lstrcatW(szQuorumLogPath, cszClusLogFileRootDir); pResource = OmReferenceObjectById( ObjectTypeResource, NewQuorumResourceId ); if (pResource == NULL) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateChangeQuorumResource: Resource <%1!ws!> could not be found....\n", NewQuorumResourceId); return(ERROR_SUCCESS); } //since the resource->quorum is going to change, acquire the quocritsec //always acquire the gQuoCritsec before gQuoLock ACQUIRE_EXCLUSIVE_LOCK(gQuoChangeLock); //prevent any resources from going online at this time ACQUIRE_EXCLUSIVE_LOCK(gQuoLock); //pause any changes to the cluster database //always acquire this lock after gQuoLock(refer to the ordering of locks // in fminit.c) ACQUIRE_EXCLUSIVE_LOCK(gLockDmpRoot); DmPauseDiskManTimer(); //if this resource was already a quorum resource if (!pResource->QuorumResource) { // // Now find the current quorum resource. // OmEnumObjects( ObjectTypeResource, FmpFindQuorumResource, &pOldQuoResource, NULL ); if ( pOldQuoResource != NULL ) { CL_ASSERT( pOldQuoResource->QuorumResource ); // Stop the quorum reservation thread! pOldQuoResource->QuorumResource = FALSE; } //set the new resource to be the quorum resource pResource->QuorumResource = TRUE; } //writes to the old log file hXsaction = DmBeginLocalUpdate(); if (!hXsaction) { dwStatus = GetLastError(); goto FnExit; } dwStatus = DmLocalSetValue( hXsaction, DmQuorumKey, cszPath, REG_SZ, (LPBYTE)szQuorumLogPath, (lstrlenW(szQuorumLogPath)+1) * sizeof(WCHAR)); if (dwStatus != ERROR_SUCCESS) goto FnExit; #ifdef CLUSTER_TESTPOINT TESTPT(TpFailLocalXsaction) { LPWSTR pszStr = szQuorumLogPath; dwStatus = (MAX_PATH * sizeof(WCHAR)); dwStatus = DmQuerySz( DmQuorumKey, cszPath, &pszStr, &dwStatus, &dwStatus); ClRtlLogPrint(LOG_UNUSUAL, "[FM] Testing failing a local transaction midway- new quorum path %1!ws!\r\n", szQuorumLogPath); dwStatus = 999999; goto FnExit; } #endif dwStatus = DmLocalSetValue( hXsaction, DmQuorumKey, cszMaxQuorumLogSize, REG_DWORD, (LPBYTE)pdwMaxQuorumLogSize, sizeof(DWORD)); if (dwStatus != ERROR_SUCCESS) goto FnExit; //if the old quorum resource is different from the new quorum resource if ((pOldQuoResource) && (pOldQuoResource != pResource)) { //get/set the new/old resource's flags //set the core flag on the new quorum resource ResKey = DmOpenKey( DmResourcesKey, NewQuorumResourceId, KEY_READ | KEY_SET_VALUE); if (!ResKey) { dwStatus = GetLastError(); goto FnExit; } pResource->ExFlags |= CLUS_FLAG_CORE; dwStatus = DmLocalSetValue( hXsaction, ResKey, CLUSREG_NAME_FLAGS, REG_DWORD, (LPBYTE)&(pResource->ExFlags), sizeof(DWORD)); DmCloseKey( ResKey ); if (dwStatus != ERROR_SUCCESS) goto FnExit; //unset the core flag on the old quorum resource ResKey = DmOpenKey( DmResourcesKey, OmObjectId(pOldQuoResource), KEY_READ | KEY_SET_VALUE); if (!ResKey) { dwStatus = GetLastError(); goto FnExit; } pOldQuoResource->ExFlags &= ~CLUS_FLAG_CORE; //unset the core flag on the old quorum resource dwStatus = DmLocalSetValue( hXsaction, ResKey, CLUSREG_NAME_FLAGS, REG_DWORD, (LPBYTE)&(pOldQuoResource->ExFlags), sizeof(DWORD)); DmCloseKey( ResKey ); if (dwStatus != ERROR_SUCCESS) goto FnExit; } // // Set the quorum resource value. // dwStatus = DmLocalSetValue( hXsaction, DmQuorumKey, CLUSREG_NAME_QUORUM_RESOURCE, REG_SZ, (CONST BYTE *)OmObjectId(pResource), (lstrlenW(OmObjectId(pResource))+1)*sizeof(WCHAR)); if (dwStatus != ERROR_SUCCESS) { goto FnExit; } FnExit: if (dwStatus == ERROR_SUCCESS) { LPWSTR szClusterName=NULL; DWORD dwSize=0; //commit the update on the old log file, //any nodes that were done, will get this change //I cant delete this file DmCommitLocalUpdate(hXsaction); //close the old log file, open the new one and take a checkpoint DmSwitchToNewQuorumLog(szQuorumLogPath); // SS:the buffer should contain the current cluster name ? DmQuerySz( DmClusterParametersKey, CLUSREG_NAME_CLUS_NAME, &szClusterName, &dwSize, &dwSize); if (szClusterName) ClusterEventEx(CLUSTER_EVENT_PROPERTY_CHANGE, EP_FREE_CONTEXT, szClusterName); if ((pOldQuoResource) && (pOldQuoResource != pResource)) { //generate the resource property change events ClusterEvent( CLUSTER_EVENT_RESOURCE_PROPERTY_CHANGE, pResource ); ClusterEvent( CLUSTER_EVENT_RESOURCE_PROPERTY_CHANGE, pOldQuoResource ); } } else { if (hXsaction) DmAbortLocalUpdate(hXsaction); //reinstall the tombstone DmReinstallTombStone(szQuorumLogPath); } if (pOldQuoResource) OmDereferenceObject(pOldQuoResource); OmDereferenceObject(pResource); DmRestartDiskManTimer(); //release locks RELEASE_LOCK(gLockDmpRoot); RELEASE_LOCK(gQuoLock); RELEASE_LOCK(gQuoChangeLock); return(dwStatus); } DWORD FmpUpdateResourceState( IN BOOL SourceNode, IN LPCWSTR ResourceId, IN PGUM_RESOURCE_STATE ResourceState ) /*++ Routine Description: GUM update handler for resource state changes. Arguments: SourceNode - Supplies whether or not this node was the source of the update ResourceId - Supplies the id of the resource whose state is changing ResourceState - Supplies the new state of the resource. Return Value: ERROR_SUCCESS if successful Win32 error code otherwise --*/ { PFM_RESOURCE resource; if ( !FmpFMGroupsInited ) { return(ERROR_SUCCESS); } // // This update type is always sent. // On the originating node, all of the work must be done by // the sending thread. // On the non-originating nodes, no locks can be acquired! This // would cause some hang situations with operations like move. // ... this is okay, since the locking must be done on the sending // node anyway, which owns the group. // if ( SourceNode == FALSE ) { resource = OmReferenceObjectById( ObjectTypeResource, ResourceId ); if ( resource == NULL ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] Gum ResourceState failed to find resource %1!ws!\n", ResourceId); CL_LOGFAILURE( ERROR_RESOURCE_NOT_FOUND ); return(ERROR_SUCCESS); } ClRtlLogPrint(LOG_NOISE, "[FM] Gum update resource %1!ws!, state %2!u!, current state %3!u!.\n", ResourceId, ResourceState->State, ResourceState->PersistentState); //FmpAcquireLocalResourceLock( resource ); if ( resource->Group->OwnerNode == NmLocalNode ) { ClRtlLogPrint(LOG_NOISE, "[FM] Gum ResourceState wrong owner for %1!ws!\n", ResourceId); } else { resource->State = ResourceState->State; resource->PersistentState = ResourceState->PersistentState; resource->StateSequence = ResourceState->StateSequence; switch ( ResourceState->State ) { case ClusterResourceOnline: ClusterEvent( CLUSTER_EVENT_RESOURCE_ONLINE, resource ); break; case ClusterResourceOffline: ClusterEvent( CLUSTER_EVENT_RESOURCE_OFFLINE, resource ); break; case ClusterResourceFailed: ClusterEvent( CLUSTER_EVENT_RESOURCE_FAILED, resource ); break; case ClusterResourceOnlinePending: case ClusterResourceOfflinePending: ClusterEvent( CLUSTER_EVENT_RESOURCE_CHANGE, resource ); break; default: ClRtlLogPrint(LOG_UNUSUAL, "[FM] Gum update resource state, bad state %1!u!\n", ResourceState->State); break; } } OmDereferenceObject( resource ); } return(ERROR_SUCCESS); } DWORD FmpUpdateGroupState( IN BOOL SourceNode, IN LPCWSTR GroupId, IN LPCWSTR NodeId, IN PGUM_GROUP_STATE GroupState ) /*++ Routine Description: GUM update handler for group state changes. Arguments: SourceNode - Supplies whether or not this node was the source of the update GroupId - Supplies the id of the resource whose state is changing NodeId - Supplies the node id of the group owner. GroupState - Supplies the new state of the group. Return Value: ERROR_SUCCESS if successful Win32 error code otherwise --*/ { PFM_GROUP group; PWSTR nodeId; PNM_NODE node; if ( !FmpFMGroupsInited ) { return(ERROR_SUCCESS); } // // This update type is always sent. // On the originating node, all of the work must be done by // the sending thread. // On the non-originating nodes, no locks can be acquired! This // would cause some hang situations with operations like move. // ... this is okay, since the locking must be done on the sending // node anyway, which owns the group. // if ( SourceNode == FALSE ) { group = OmReferenceObjectById( ObjectTypeGroup, GroupId ); if ( group == NULL ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] Gum GroupState failed to find group %1!ws!\n", GroupId); return(ERROR_SUCCESS); } ClRtlLogPrint(LOG_NOISE, "[FM] GUM update group %1!ws!, state %2!u!\n", GroupId, GroupState->State); if ( group->OwnerNode == NmLocalNode ) { ClRtlLogPrint(LOG_NOISE, "[FM] Gum GroupState wrong owner for %1!ws!\n", GroupId); } else { group->State = GroupState->State; group->PersistentState = GroupState->PersistentState; group->StateSequence = GroupState->StateSequence; node = OmReferenceObjectById( ObjectTypeNode, NodeId ); if ( node == NULL ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] Owner of Group %1!ws! cannot be found %2!ws!\n", GroupId, NodeId); } else { ClRtlLogPrint(LOG_NOISE, "[FM] New owner of Group %1!ws! is %2!ws!, state %3!u!, curstate %4!u!.\n", OmObjectId( group ), OmObjectId( node ), group->State, group->PersistentState); if ( !FmpInPreferredList( group, node, FALSE, NULL ) ) { ClRtlLogPrint( LOG_UNUSUAL, "[FM] New owner %1!ws! is not in preferred list for group %2!ws!.\n", OmObjectId( node ), OmObjectId( group )); } } group->OwnerNode = node; switch ( GroupState->State ) { case ClusterGroupOnline: case ClusterGroupPartialOnline: ClusterEvent( CLUSTER_EVENT_GROUP_ONLINE, group ); break; case ClusterGroupOffline: ClusterEvent( CLUSTER_EVENT_GROUP_OFFLINE, group ); break; default: ClRtlLogPrint(LOG_UNUSUAL,"[FM] Gum update group state, bad state %1!u!\n", GroupState->State); break; } } OmDereferenceObject( group ); } return(ERROR_SUCCESS); } DWORD FmpUpdateGroupNode( IN BOOL SourceNode, IN LPCWSTR GroupId, IN LPCWSTR NodeId ) /*++ Routine Description: GUM update handler for group node changes. This is required for notification when a group moves between nodes but does not change state (i.e. it was already offline) Arguments: SourceNode - Supplies whether or not this node was the source of the update GroupId - Supplies the id of the resource whose state is changing NodeId - Supplies the node id of the group owner. Return Value: ERROR_SUCCESS if successful Win32 error code otherwise --*/ { PFM_GROUP pGroup; DWORD dwStatus = ERROR_SUCCESS; PNM_NODE pNode = NULL; PNM_NODE pPrevNode = NULL; if ( !FmpFMGroupsInited ) { return(ERROR_SUCCESS); } pGroup = OmReferenceObjectById( ObjectTypeGroup, GroupId ); if (pGroup == NULL) { ClRtlLogPrint(LOG_ERROR, "[FM] FmpUpdateGroupNode: GroupID = %1!ws! could not be found...\n", GroupId); // // Chittur Subbaraman (chitturs) - 6/12/99 // // Return ERROR_SUCCESS here since this is what NT4 side does. // Compatibility pain ! // goto FnExit; } pNode = OmReferenceObjectById(ObjectTypeNode, NodeId); if (pNode == NULL) { dwStatus = ERROR_CLUSTER_NODE_NOT_FOUND; goto FnExit; } // // HACKHACK: Chittur Subbaraman (chitturs) - 5/20/99 // Comment out as a temporary solution to avoid deadlocks. // // FmpAcquireLocalGroupLock(pGroup); pPrevNode = pGroup->OwnerNode; //set the new owner node, incr ref count OmReferenceObject(pNode); pGroup->OwnerNode = pNode; //decr ref count on previous owner OmDereferenceObject(pPrevNode); // // HACKHACK: Chittur Subbaraman (chitturs) - 5/20/99 // Comment out as a temporary solution to avoid deadlocks. // // FmpReleaseLocalGroupLock(pGroup); //generate an event to signify group owner node change ClusterEvent(CLUSTER_EVENT_GROUP_CHANGE, pGroup); FnExit: if (pGroup) OmDereferenceObject(pGroup); if (pNode) OmDereferenceObject(pNode); return(dwStatus); } DWORD FmpUpdateChangeClusterName( IN BOOL SourceNode, IN LPCWSTR szNewName ) /*++ Routine Description: GUM update routine for changing the name of the cluster. This changes the name property of the core network name resource as well. The resource is notified about it by a worker thread that the name has been changed. Arguments: SourceNode - Supplies whether or not this node originated the update. NewName - Supplies the new name of the cluster. Return Value: ERROR_SUCCESS if successful Win32 error code otherwise --*/ { LPWSTR Buffer; DWORD Length; DWORD Status = ERROR_SUCCESS; LPWSTR ClusterNameId=NULL; DWORD idMaxSize = 0; DWORD idSize = 0; PFM_RESOURCE Resource=NULL; HDMKEY ResKey = NULL; HDMKEY ParamKey = NULL; HLOCALXSACTION hXsaction=NULL; if ( !FmpFMGroupsInited || FmpShutdown ) { return(ERROR_SUCCESS); } hXsaction = DmBeginLocalUpdate(); if (!hXsaction) { Status = ERROR_SUCCESS; goto FnExit; } //find the core network name resource, set its private properties Status = DmQuerySz( DmClusterParametersKey, CLUSREG_NAME_CLUS_CLUSTER_NAME_RES, (LPWSTR*)&ClusterNameId, &idMaxSize, &idSize); if (Status != ERROR_SUCCESS) { ClRtlLogPrint(LOG_ERROR, "[FM] FmpUpdateChangeClusterName failed to get cluster name resource, error %1!u!.\n", Status); goto FnExit; } // // Reference the specified resource ID. // Resource = OmReferenceObjectById( ObjectTypeResource, ClusterNameId ); if (Resource == NULL) { ClRtlLogPrint(LOG_ERROR, "[FM] FmpUpdateChangeClusterName failed to find the cluster name resource\n", Status); goto FnExit; } ResKey = DmOpenKey(DmResourcesKey, ClusterNameId, KEY_READ | KEY_SET_VALUE); if (!ResKey) { Status = GetLastError(); goto FnExit; } ParamKey = DmOpenKey(ResKey, cszParameters, KEY_READ | KEY_SET_VALUE); if (!ParamKey) { Status = GetLastError(); goto FnExit; } Status = DmLocalSetValue(hXsaction, ParamKey, CLUSREG_NAME_RES_NAME, REG_SZ, (CONST BYTE *)szNewName, (lstrlenW(szNewName)+1)*sizeof(WCHAR)); if ( Status != ERROR_SUCCESS ) goto FnExit; //update the default cluster name Status = DmLocalSetValue(hXsaction, DmClusterParametersKey, CLUSREG_NAME_CLUS_NAME, REG_SZ, (CONST BYTE *)szNewName, (lstrlenW(szNewName)+1)*sizeof(WCHAR)); if (Status != ERROR_SUCCESS) goto FnExit; //notify the resource dll that the name has been changed //that will decrement the reference count on this object //current fm only has pending work associated with //this event on the name change case. If other cases require //pending work, then CLUSTER_EVENT_PROPERTY_CONTEXT must //be used FmpPostWorkItem(FM_EVENT_CLUSTER_PROPERTY_CHANGE, Resource, 0); Resource = NULL; // // Need to allocate a new buffer for posting the new name to the event // processor // Length = (lstrlenW(szNewName)+1)*sizeof(WCHAR); Buffer = LocalAlloc(LMEM_FIXED,Length); if (Buffer == NULL) { Status = ERROR_NOT_ENOUGH_MEMORY; goto FnExit; } CopyMemory(Buffer, szNewName, Length); ClusterEventEx(CLUSTER_EVENT_PROPERTY_CHANGE, EP_FREE_CONTEXT, Buffer); FnExit: if (ClusterNameId) LocalFree(ClusterNameId); if (ParamKey) DmCloseKey(ParamKey); if (ResKey) DmCloseKey(ResKey); if (Resource) OmDereferenceObject(Resource); if (hXsaction) { if (Status == ERROR_SUCCESS) DmCommitLocalUpdate(hXsaction); else DmAbortLocalUpdate(hXsaction); } return(Status); } DWORD FmpUpdateChangeResourceName( IN BOOL bSourceNode, IN LPCWSTR lpszResourceId, IN LPCWSTR lpszNewName ) /*++ Routine Description: GUM dispatch routine for changing the friendly name of a resource. Arguments: bSourceNode - Supplies whether or not this node initiated the GUM update. Not used. lpszResourceId - Supplies the resource ID. lpszNewName - Supplies the new friendly name. Return Value: ERROR_SUCCESS if successful. Win32 error code otherwise. --*/ { PFM_RESOURCE pResource = NULL; DWORD dwStatus; HDMKEY hKey = NULL; DWORD dwDisposition; HLOCALXSACTION hXsaction = NULL; PFM_RES_CHANGE_NAME pResChangeName = NULL; if ( !FmpFMGroupsInited || FmpShutdown ) { return( ERROR_SUCCESS ); } // // Chittur Subbaraman (chitturs) - 6/28/99 // // Restructure this GUM update as a local transaction. // // pResource = OmReferenceObjectById( ObjectTypeResource, lpszResourceId ); if ( pResource == NULL ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateChangeResourceName: Resource <%1!ws!> could not be found....\n", lpszResourceId); return( ERROR_RESOURCE_NOT_FOUND ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateChangeResourceName: Entry for resource <%1!ws!>, New name = <%2!ws!>...\n", lpszResourceId, lpszNewName); // // Start a transaction // hXsaction = DmBeginLocalUpdate(); if ( !hXsaction ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateChangeResourceName: Failed in starting a transaction for resource %1!ws!, Status =%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } // // Open the resources key. // hKey = DmLocalCreateKey( hXsaction, DmResourcesKey, lpszResourceId, 0, KEY_READ | KEY_WRITE, NULL, &dwDisposition ); if ( hKey == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateChangeResourceName: Failed in opening the resources key for resource %1!ws!, Status =%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } CL_ASSERT( dwDisposition != REG_CREATED_NEW_KEY ); // // Set the resource name in the registry // dwStatus = DmLocalSetValue( hXsaction, hKey, CLUSREG_NAME_RES_NAME, REG_SZ, ( CONST BYTE * ) lpszNewName, ( lstrlenW( lpszNewName ) + 1 ) * sizeof( WCHAR ) ); if( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateChangeResourceName: DmLocalSetValue for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } pResChangeName = LocalAlloc( LMEM_FIXED, lstrlenW( lpszNewName ) * sizeof ( WCHAR ) + sizeof( FM_RES_CHANGE_NAME ) ); if ( pResChangeName == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateChangeResourceName: Unable to allocate memory for ResChangeName structure for resource <%1!ws!>, Status =%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } dwStatus = OmSetObjectName( pResource, lpszNewName ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateChangeResourceName: Unable to set name <%3!ws!> for resource <%1!ws!>, Status =%2!d!....\n", lpszResourceId, dwStatus, lpszNewName ); LocalFree( pResChangeName ); goto FnExit; } pResChangeName->pResource = pResource; lstrcpyW( pResChangeName->szNewResourceName, lpszNewName ); // // The FM worker thread will free the memory for the pResChangeName // structure as well as dereference the pResource object. // FmpPostWorkItem( FM_EVENT_RESOURCE_NAME_CHANGE, pResChangeName, 0 ); pResource = NULL; ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateChangeResourceName: Successfully changed name of resource <%1!ws!> to <%2!ws!>...\n", lpszResourceId, lpszNewName); FnExit: if ( pResource != NULL ) { OmDereferenceObject( pResource ); } if ( hKey != NULL ) { DmCloseKey( hKey ); } if ( ( dwStatus == ERROR_SUCCESS ) && ( hXsaction ) ) { DmCommitLocalUpdate( hXsaction ); } else { if ( hXsaction ) DmAbortLocalUpdate( hXsaction ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateChangeResourceName: Exit for resource %1!ws!, Status=%2!u!...\n", lpszResourceId, dwStatus); return( dwStatus ); } /**** @func DWORD | FmpUpdatePossibleNodesForResType| This update is called to update the possible nodes for a resource type. @parm IN BOOL | SourceNode | set to TRUE, if the update originated at this node. @parm IN LPCWSTR | lpszResTypeName | The name of the resource type. @parm IN DWORD | dwBufLength | The size of the multi-sz string pointed to by pBuf @parm IN PVOID | pBuf | A pointer to the buffer containing the names of the nodes that support this resource type. @comm The possible list of nodes that supports the given resource type is updated with the list provided. @rdesc Returns a result code. ERROR_SUCCESS on success. @xref ****/ DWORD FmpUpdatePossibleNodeForResType( IN BOOL SourceNode, IN LPCWSTR lpszResTypeName, IN LPDWORD pdwBufLength, IN PVOID pBuf ) { PFM_RESTYPE pResType; DWORD dwStatus; HDMKEY hResTypeKey = NULL; HLOCALXSACTION hXsaction = NULL; LIST_ENTRY NewPosNodeList; PLIST_ENTRY pListEntry; PRESTYPE_POSSIBLE_ENTRY pResTypePosEntry = NULL; // // Chittur Subbaraman (chitturs) - 5/13/99 // // Don't check for FmpFMGroupsInited condition since this GUM // handler is called by the forming node before that variable // is set to TRUE. This update always comes after the // corresponding restypes have been created and is made // internally by the clussvc following this order. Note that // a joining node cannot receive this update until groups are // inited since GUM receive updates are turned on only after // the FmpFMGroupsInited variable is set to TRUE. Also, the // intracluster RPC is fired up in a forming node only after // the groups are inited. Hence, there is no major danger // of this GUM handler being called if the corresponding // restype is not created. // if ( FmpShutdown ) { return(ERROR_SUCCESS); } InitializeListHead(&NewPosNodeList); pResType = OmReferenceObjectById( ObjectTypeResType, lpszResTypeName); if (!pResType) { dwStatus = ERROR_CLUSTER_RESOURCE_TYPE_NOT_FOUND; goto FnExit; } dwStatus = FmpAddPossibleNodeToList(pBuf, *pdwBufLength, &NewPosNodeList); if (dwStatus != ERROR_SUCCESS) { goto FnExit; } //writes to the old log file hXsaction = DmBeginLocalUpdate(); if (!hXsaction) { dwStatus = GetLastError(); goto FnExit; } hResTypeKey = DmOpenKey(DmResourceTypesKey, lpszResTypeName, KEY_READ | KEY_WRITE); if (hResTypeKey == NULL) { dwStatus = GetLastError(); goto FnExit; } //if there are no possible owners, delete the value if (pBuf && *pdwBufLength) { dwStatus = DmLocalSetValue( hXsaction, hResTypeKey, CLUSREG_NAME_RESTYPE_POSSIBLE_NODES, REG_MULTI_SZ, (LPBYTE)pBuf, *pdwBufLength); } else { dwStatus = DmLocalDeleteValue( hXsaction, hResTypeKey, CLUSREG_NAME_RESTYPE_POSSIBLE_NODES); if (dwStatus == ERROR_FILE_NOT_FOUND) { dwStatus = ERROR_SUCCESS; } } FnExit: if (dwStatus == ERROR_SUCCESS) { //commit the update on the old log file, //any nodes that were done, will get this change //I cant delete this file DmCommitLocalUpdate(hXsaction); ACQUIRE_EXCLUSIVE_LOCK(gResTypeLock); //free the old list while (!IsListEmpty(&pResType->PossibleNodeList)) { pListEntry = RemoveHeadList(&pResType->PossibleNodeList); pResTypePosEntry = CONTAINING_RECORD(pListEntry, RESTYPE_POSSIBLE_ENTRY, PossibleLinkage); OmDereferenceObject(pResTypePosEntry->PossibleNode); LocalFree(pResTypePosEntry); } //now switch the possible owners list for the //resource type while (!IsListEmpty(&(NewPosNodeList))) { //remove from the new prepared list and hang //it of the restype structure pListEntry = RemoveHeadList(&NewPosNodeList); InsertTailList(&pResType->PossibleNodeList, pListEntry); pResTypePosEntry = CONTAINING_RECORD(pListEntry, RESTYPE_POSSIBLE_ENTRY, PossibleLinkage); ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdatePossibleNodesForRestype:Adding node %1!ws! to %2!ws! resource type's possible node list...\n", OmObjectId(pResTypePosEntry->PossibleNode), lpszResTypeName); } RELEASE_LOCK(gResTypeLock); ClusterEvent( CLUSTER_EVENT_RESTYPE_PROPERTY_CHANGE, pResType ); } else { //free up the NewPostNodeList if (hXsaction) DmAbortLocalUpdate(hXsaction); //if a new list was prepared, free it while (!IsListEmpty(&(NewPosNodeList))) { pListEntry = RemoveHeadList(&NewPosNodeList); pResTypePosEntry = CONTAINING_RECORD(pListEntry, RESTYPE_POSSIBLE_ENTRY, PossibleLinkage); OmDereferenceObject(pResTypePosEntry->PossibleNode); LocalFree(pResTypePosEntry); } } if (hResTypeKey) DmCloseKey(hResTypeKey); if (pResType) OmDereferenceObject(pResType); return(dwStatus); } /**** @func DWORD | FmpDecidePossibleNodeForResType| When the quorum resource is changed, the FM invokes this api on the owner node of the new quorum resource to create a new quorum log file. @parm IN PVOID | pResource | The new quorum resource. @parm IN LPCWSTR | lpszPath | The path for temporary cluster files. @parm IN DWORD | dwMaxQuoLogSize | The maximum size limit for the quorum log file. @comm When a quorum resource is changed, the fm calls this funtion before it updates the quorum resource. If a new log file needs to be created, a checkpoint is taken. @rdesc Returns a result code. ERROR_SUCCESS on success. @xref ****/ DWORD FmpDecidePossibleNodeForResType ( IN PGUM_VOTE_DECISION_CONTEXT pDecisionContext, IN DWORD dwVoteBufLength, IN PVOID pVoteBuf, IN DWORD dwNumVotes, IN BOOL bDidAllActiveNodesVote, OUT LPDWORD pdwOutputBufSize, OUT PVOID *ppOutputBuf ) { DWORD dwStatus = ERROR_SUCCESS; DWORD i; PFMP_VOTE_POSSIBLE_NODE_FOR_RESTYPE pFmpVote; LPWSTR lpmszPossibleNodes = NULL; DWORD dwlpmszLen = 0; PVOID pGumBuffer = NULL; DWORD dwNodeId; WCHAR szNodeId[6]; LPWSTR lpmszCurrentPossibleNodes=NULL; BOOL bChange = FALSE; HDMKEY hResTypeKey = NULL; DWORD dwSize; DWORD dwStringBufSize = 0; BOOL bAssumeSupported; LPWSTR TypeName = NULL; //First get the type name from pDecisionContext TypeName=(LPWSTR)LocalAlloc(LMEM_FIXED,pDecisionContext->dwInputBufLength); if(TypeName==NULL) { ClRtlLogPrint(LOG_ERROR,"[FM] FmpDecidePossibleNodeForResType: Not Enough Memory, error= %1!d!\r\n", GetLastError()); goto FnExit; } CopyMemory(TypeName,pDecisionContext->pInputBuf,pDecisionContext->dwInputBufLength); //initialize the out params *ppOutputBuf = NULL; *pdwOutputBufSize = 0; bAssumeSupported= *((BOOL*)pDecisionContext->pContext); if (bAssumeSupported) { hResTypeKey = DmOpenKey(DmResourceTypesKey, TypeName, KEY_READ | KEY_WRITE); if (hResTypeKey == NULL) { dwStatus = GetLastError(); CL_LOGFAILURE(dwStatus); goto FnExit; } //pass the current possible node list to the decider dwStatus = DmQueryString(hResTypeKey, CLUSREG_NAME_RESTYPE_POSSIBLE_NODES, REG_MULTI_SZ, &lpmszCurrentPossibleNodes, &dwStringBufSize, &dwSize); if (dwStatus != ERROR_SUCCESS) { //if the possible node list is not found this is ok //ie. only if there is some other error we give up if ( dwStatus != ERROR_FILE_NOT_FOUND ) { CL_LOGFAILURE(dwStatus); goto FnExit; } } DmCloseKey(hResTypeKey); hResTypeKey = NULL; } //if the current list is passed in, dont remove any possible //nodes from the list if they dont vote, simply add the new ones if (lpmszCurrentPossibleNodes) { DWORD dwStrLen; //make a copy of the multi-sz dwlpmszLen = ClRtlMultiSzLength(lpmszCurrentPossibleNodes); dwStrLen = dwlpmszLen * sizeof(WCHAR); lpmszPossibleNodes = LocalAlloc(LMEM_FIXED, dwStrLen); if (!lpmszPossibleNodes) { dwStatus = ERROR_NOT_ENOUGH_MEMORY; CL_LOGFAILURE(dwStatus); goto FnExit; } CopyMemory(lpmszPossibleNodes, lpmszCurrentPossibleNodes, dwStrLen); } for (i = 0; i< dwNumVotes; i++) { pFmpVote = (PFMP_VOTE_POSSIBLE_NODE_FOR_RESTYPE) GETVOTEFROMBUF(pVoteBuf, pDecisionContext->dwVoteLength, i+1 , &dwNodeId); //if not a valid vote, skip if (!pFmpVote) continue; CL_ASSERT((PBYTE)pFmpVote <= ((PBYTE)pVoteBuf + dwVoteBufLength - sizeof(FMP_VOTE_POSSIBLE_NODE_FOR_RESTYPE))); wsprintfW(szNodeId, L"%d" , dwNodeId); if (pFmpVote->bPossibleNode) { if (lpmszCurrentPossibleNodes) { //if the string is already there, dont append it again if (ClRtlMultiSzScan(lpmszCurrentPossibleNodes, szNodeId)) continue; } dwStatus = ClRtlMultiSzAppend(&lpmszPossibleNodes, &dwlpmszLen, szNodeId); bChange = TRUE; if (dwStatus != ERROR_SUCCESS) goto FnExit; } else { //if a current list was specified //this node is not a possible node anymore, remove it from the list if (lpmszCurrentPossibleNodes) { ClRtlLogPrint(LOG_NOISE, "[FM] FmpDecidePossibleNodesForRestype: Removing node %1!ws! from %2!ws! restype possibleowner list \r\n", szNodeId,TypeName); dwStatus = ClRtlMultiSzRemove(lpmszPossibleNodes, &dwlpmszLen, szNodeId); if (dwStatus == ERROR_SUCCESS) { //if the node is successfully removed bChange = TRUE; } else if (dwStatus != ERROR_FILE_NOT_FOUND) { //if the node exists but cannot be removed return with error //if the node didnt exist, we dont do anything bChange remains //set at FALSE goto FnExit; } else { dwStatus = ERROR_SUCCESS; } } } } //if nothing has changed dont issue a gum update if (!bChange) { dwStatus = ERROR_ALREADY_EXISTS; goto FnExit; } //dwlpmszLen contains the size of the multi-sz string in the //number of characters, make it the number of bytes dwlpmszLen *= sizeof(WCHAR); pGumBuffer = GumMarshallArgs(pdwOutputBufSize, 3, pDecisionContext->dwInputBufLength, pDecisionContext->pInputBuf, sizeof(DWORD), &dwlpmszLen, dwlpmszLen, lpmszPossibleNodes); *ppOutputBuf = pGumBuffer; FnExit: if (lpmszPossibleNodes) LocalFree(lpmszPossibleNodes); if (hResTypeKey) DmCloseKey(hResTypeKey); if (lpmszCurrentPossibleNodes) LocalFree(lpmszCurrentPossibleNodes); if(TypeName) LocalFree(TypeName); return(dwStatus); } /**** @func DWORD | FmpUpdateChangeResourceNode| This update is called to update the possible nodes for a resource. @parm IN BOOL | SourceNode | set to TRUE, if the update originated at this node. @parm IN PFM_RESOURCE | pResource | A pointer to the resource whose possible node list is being updated. @parm IN PNM_NODE | pNode | A pointer to the node to be added/removed from the possible node lis. @parm IN DWORD | dwControlCode | If CLUSCTL_RESOURCE_ADD_OWNER then the node is added to the possible node list, else it is removed. @comm The possible list of nodes for a resource is updated. @rdesc Returns a result code. ERROR_SUCCESS on success. ****/ DWORD FmpUpdateChangeResourceNode( IN BOOL SourceNode, IN PFM_RESOURCE pResource, IN PNM_NODE pNode, IN DWORD dwControlCode ) { DWORD dwStatus; HDMKEY hResKey = NULL; HLOCALXSACTION hXsaction = NULL; //Dont acquire the local resource lock since acquiring that //within gum updates causes deadlock //use the global resource lock to synchronize this call //with the enumeration of possible nodes FmpAcquireResourceLock(); //start a transaction hXsaction = DmBeginLocalUpdate(); if (!hXsaction) { dwStatus = GetLastError(); goto FnExit; } if (dwControlCode == CLUSCTL_RESOURCE_ADD_OWNER) { dwStatus = FmpAddPossibleNode(pResource, pNode); } else { dwStatus = FmpRemovePossibleNode(pResource, pNode, FALSE); } if (dwStatus != ERROR_SUCCESS) { ClRtlLogPrint( LOG_NOISE, "[FM] FmpUpdateChangeResourceNode, failed possible node updatefor resource <%1!ws!>, error %2!u!\n", OmObjectName(pResource), dwStatus ); goto FnExit; } //fix the registry //SS - do we need to fix the preferred node list hResKey = DmOpenKey(DmResourcesKey, OmObjectId(pResource), KEY_READ | KEY_WRITE); if (hResKey == NULL) { dwStatus = GetLastError(); goto FnExit; } if (dwControlCode == CLUSCTL_RESOURCE_ADD_OWNER) { dwStatus = DmLocalAppendToMultiSz( hXsaction, hResKey, CLUSREG_NAME_RES_POSSIBLE_OWNERS, OmObjectId(pNode)); } else { dwStatus = DmLocalRemoveFromMultiSz( hXsaction, hResKey, CLUSREG_NAME_RES_POSSIBLE_OWNERS, OmObjectId(pNode)); if (dwStatus == ERROR_FILE_NOT_FOUND) { DWORD i; DWORD Result; PNM_NODE pEnumNode; // // Possible nodes did not exist, so create a new entry // with every possible node in it. FM will already have // removed the passed in node from the possible node list. // i=0; do { Result = FmEnumResourceNode(pResource, i, &pEnumNode); if (Result == ERROR_SUCCESS) { dwStatus = DmLocalAppendToMultiSz( hXsaction, hResKey, CLUSREG_NAME_RES_POSSIBLE_OWNERS, OmObjectId(pEnumNode)); OmDereferenceObject(pEnumNode); } else if ((Result == ERROR_NO_MORE_ITEMS) && (i == 0)) { // // This is a funny corner case where there is a one // node cluster and a resource with no possibleowners // entry, and somebody removes the only node in the cluster // from the possible owners list. Set PossibleOwners to // the empty set. // dwStatus = DmLocalSetValue( hXsaction, hResKey, CLUSREG_NAME_RES_POSSIBLE_OWNERS, REG_MULTI_SZ, (CONST BYTE *)L"\0", 2); } ++i; } while ( Result == ERROR_SUCCESS ); //map the error to success dwStatus = ERROR_SUCCESS; } } DmCloseKey(hResKey); FnExit: //release the lock FmpReleaseResourceLock(); if (dwStatus == ERROR_SUCCESS) { //commit the update on the old log file, //any nodes that were done, will get this change //I cant delete this file DmCommitLocalUpdate(hXsaction); } else { //SS: BUGBUG :: validation for possible node should //be done before the registry is switched //the inmemory structure should be changed only on success //if there is a failure in the registry apis..the //in memory structure will be out of sync with registry if (hXsaction) DmAbortLocalUpdate(hXsaction); } return(dwStatus); } /**** @func DWORD | FmpUpdateChangeResourceGroup| This update is called to update the group to which the resource belongs. @parm IN BOOL | bSourceNode | set to TRUE, if the update originated at this node. @parm IN PFM_RESOURCE | pResource | A pointer to the resource whose possible node list is being updated. @parm IN PFM_GROUP | pNewGroup | A pointer to the node to be added/removed from the possible node lis. @comm The possible list of nodes for a resource is updated. @rdesc Returns a result code. ERROR_SUCCESS on success. ****/ DWORD FmpUpdateChangeResourceGroup( IN BOOL bSourceNode, IN PFM_RESOURCE pResource, IN PFM_GROUP pNewGroup) { DWORD dwStatus = ERROR_SUCCESS; PFM_GROUP pOldGroup; PFM_DEPENDENCY_TREE pTree = NULL; HLOCALXSACTION hXsaction = NULL; HDMKEY hOldGroupKey = NULL; HDMKEY hNewGroupKey = NULL; PLIST_ENTRY pListEntry; PFM_DEPENDTREE_ENTRY pEntry; pOldGroup = pResource->Group; // // Check to make sure the resource is not already in the group. // if (pOldGroup == pNewGroup) { dwStatus = ERROR_ALREADY_EXISTS; goto FnExit; } // // Synchronize both the old and the new groups. // Lock the lowest by lowest Group Id first - to prevent deadlocks! // Note - the order of release is unimportant. // // strictly, the comparison below cannot be equal! // if ( lstrcmpiW( OmObjectId( pOldGroup ), OmObjectId( pNewGroup ) ) <= 0 ) { FmpAcquireLocalGroupLock( pOldGroup ); FmpAcquireLocalGroupLock( pNewGroup ); } else { FmpAcquireLocalGroupLock( pNewGroup ); FmpAcquireLocalGroupLock( pOldGroup ); } //start a transaction hXsaction = DmBeginLocalUpdate(); if (!hXsaction) { dwStatus = GetLastError(); goto FnUnlock; } // // For now... both Groups must be owned by the same node. // if ( pResource->Group->OwnerNode != pNewGroup->OwnerNode ) { dwStatus = ERROR_HOST_NODE_NOT_GROUP_OWNER; goto FnUnlock; } // // Create a full dependency tree, // pTree = FmCreateFullDependencyTree(pResource); if ( pTree == NULL ) { dwStatus = GetLastError(); goto FnUnlock; } // // Add each resource in the dependency tree to its new group's list. // hNewGroupKey = DmOpenKey(DmGroupsKey, OmObjectId(pNewGroup), KEY_READ | KEY_WRITE); if (hNewGroupKey == NULL) { dwStatus = GetLastError(); goto FnUnlock; } hOldGroupKey = DmOpenKey(DmGroupsKey, OmObjectId(pOldGroup), KEY_READ | KEY_WRITE); if (hOldGroupKey == NULL) { dwStatus = GetLastError(); goto FnUnlock; } // // For each resource in the dependency tree, remove it from the // old group list and add it to the new group list // pListEntry = pTree->ListHead.Flink; while (pListEntry != &pTree->ListHead) { pEntry = CONTAINING_RECORD(pListEntry, FM_DEPENDTREE_ENTRY, ListEntry); pListEntry = pListEntry->Flink; dwStatus = DmLocalRemoveFromMultiSz(hXsaction, hOldGroupKey, CLUSREG_NAME_GRP_CONTAINS, OmObjectId(pEntry->Resource)); if (dwStatus != ERROR_SUCCESS) { goto FnUnlock; } dwStatus = DmLocalAppendToMultiSz(hXsaction, hNewGroupKey, CLUSREG_NAME_GRP_CONTAINS, OmObjectId(pEntry->Resource)); if (dwStatus != ERROR_SUCCESS) { goto FnUnlock; } } // // Passed all the checks, do the in-memorymove. // pListEntry = pTree->ListHead.Flink; while (pListEntry != &pTree->ListHead) { pEntry = CONTAINING_RECORD(pListEntry, FM_DEPENDTREE_ENTRY, ListEntry); pListEntry = pListEntry->Flink; // // Move this resource // RemoveEntryList(&pEntry->Resource->ContainsLinkage); InsertHeadList(&pNewGroup->Contains, &pEntry->Resource->ContainsLinkage); OmReferenceObject(pNewGroup); pEntry->Resource->Group = pNewGroup; ++pEntry->Resource->StateSequence; ClusterEvent(CLUSTER_EVENT_RESOURCE_CHANGE,pEntry->Resource); OmDereferenceObject(pOldGroup); } FnUnlock: // // Now release all locks. // FmpReleaseLocalGroupLock( pNewGroup ); FmpReleaseLocalGroupLock( pOldGroup ); FnExit: if (pTree) FmDestroyFullDependencyTree(pTree); if (hOldGroupKey) DmCloseKey(hOldGroupKey); if (hNewGroupKey) DmCloseKey(hNewGroupKey); if (dwStatus == ERROR_SUCCESS) { ClusterEvent(CLUSTER_EVENT_GROUP_PROPERTY_CHANGE,pNewGroup); ClusterEvent(CLUSTER_EVENT_GROUP_PROPERTY_CHANGE,pOldGroup); DmCommitLocalUpdate(hXsaction); } else { if (hXsaction) DmAbortLocalUpdate(hXsaction); } return(dwStatus); } DWORD FmpUpdateAddDependency( IN BOOL SourceNode, IN LPCWSTR ResourceId, IN LPCWSTR DependsOnId ) /*++ Routine Description: GUM dispatch routine for adding a dependency Arguments: SourceNode - Supplies whether or not this node initiated the GUM update. Not used. ResourceId - Supplies the resource ID of the resource that should have a dependency added. DependsOnId - Supplies the resource ID of the resource that should provide for ResourceId. Return Value: ERROR_SUCCESS if successful. Win32 error code otherwise. --*/ { PFM_RESOURCE Resource; PFM_RESOURCE DependsOn; PDEPENDENCY dependency; // // Chittur Subbaraman (chitturs) - 4/18/99 // // If FM groups are not fully initialized or FM is shutting down, then // don't do anything. // if ( !FmpFMGroupsInited || FmpShutdown ) { return(ERROR_SUCCESS); } dependency = LocalAlloc(LMEM_FIXED, sizeof(DEPENDENCY)); if (dependency == NULL) { CsInconsistencyHalt( ERROR_NOT_ENOUGH_MEMORY ); return(ERROR_NOT_ENOUGH_MEMORY); } Resource = OmReferenceObjectById(ObjectTypeResource, ResourceId); if (Resource == NULL) { CL_LOGFAILURE( ERROR_RESOURCE_NOT_FOUND ); LocalFree(dependency); return(ERROR_RESOURCE_NOT_FOUND); } DependsOn = OmReferenceObjectById(ObjectTypeResource, DependsOnId); if (DependsOn == NULL) { OmDereferenceObject(Resource); LocalFree(dependency); CL_LOGFAILURE( ERROR_DEPENDENCY_NOT_FOUND ); return(ERROR_DEPENDENCY_NOT_FOUND); } dependency->DependentResource = Resource; dependency->ProviderResource = DependsOn; FmpAcquireResourceLock(); InsertTailList( &DependsOn->ProvidesFor, &dependency->ProviderLinkage ); InsertTailList( &Resource->DependsOn, &dependency->DependentLinkage ); FmpReleaseResourceLock(); ClusterEvent( CLUSTER_EVENT_RESOURCE_PROPERTY_CHANGE, Resource ); //SS: we leave the reference counts on both the objects //as a dependency referrring to them has been created. return(ERROR_SUCCESS); } // FmpUpdateAddDependency DWORD FmpUpdateRemoveDependency( IN BOOL SourceNode, IN LPCWSTR ResourceId, IN LPCWSTR DependsOnId ) /*++ Routine Description: GUM dispatch routine for adding a dependency Arguments: SourceNode - Supplies whether or not this node initiated the GUM update. Not used. ResourceId - Supplies the resource ID of the resource that should have a dependency removed. DependsOnId - Supplies the resource ID of the resource that provides for ResourceId. Return Value: ERROR_SUCCESS if successful. Win32 error code otherwise. --*/ { PFM_RESOURCE Resource; PFM_RESOURCE DependsOn; PDEPENDENCY dependency; PLIST_ENTRY ListEntry; DWORD Status=ERROR_SUCCESS; // // Chittur Subbaraman (chitturs) - 4/18/99 // // If FM groups are not fully initialized or FM is shutting down, then // don't do anything. // if ( !FmpFMGroupsInited || FmpShutdown ) { return(ERROR_SUCCESS); } Resource = OmReferenceObjectById(ObjectTypeResource, ResourceId); if (Resource == NULL) { CL_LOGFAILURE( ERROR_RESOURCE_NOT_FOUND ); return(ERROR_RESOURCE_NOT_FOUND); } DependsOn = OmReferenceObjectById(ObjectTypeResource, DependsOnId); if (DependsOn == NULL) { OmDereferenceObject(Resource); CL_LOGFAILURE( ERROR_RESOURCE_NOT_FOUND ); return(ERROR_RESOURCE_NOT_FOUND); } // // Walk through the dependency list of the resource searching // for a match. // FmpAcquireResourceLock(); ListEntry = Resource->DependsOn.Flink; while (ListEntry != &Resource->DependsOn) { dependency = CONTAINING_RECORD(ListEntry, DEPENDENCY, DependentLinkage); CL_ASSERT(dependency->DependentResource == Resource); if (dependency->ProviderResource == DependsOn) { // // Found a match. Remove it from its list and // free it up. // RemoveEntryList(&dependency->ProviderLinkage); RemoveEntryList(&dependency->DependentLinkage); // dereference the providor and dependent resource OmDereferenceObject(dependency->DependentResource); OmDereferenceObject(dependency->ProviderResource); LocalFree(dependency); break; } ListEntry = ListEntry->Flink; } FmpReleaseResourceLock(); if (ListEntry != &Resource->DependsOn) { // // A match was found. Dereference the provider resource // to account for the dependency removal and return success. // ClusterEvent( CLUSTER_EVENT_RESOURCE_PROPERTY_CHANGE, Resource ); Status = ERROR_SUCCESS; } else { Status = ERROR_DEPENDENCY_NOT_FOUND; } //SS: dereference the objects earlier referenced OmDereferenceObject(Resource); OmDereferenceObject(DependsOn); return(Status); } // FmpUpdateRemoveDependency DWORD FmpUpdateDeleteGroup( IN BOOL SourceNode, IN LPCWSTR GroupId ) /*++ Routine Description: GUM dispatch routine for deleting a group. Arguments: SourceNode - Supplies whether or not this node initiated the GUM update. Not used. GroupId - Supplies the group ID. Return Value: ERROR_SUCCESS if successful. Win32 error code otherwise. --*/ { DWORD dwStatus = ERROR_SUCCESS; PFM_GROUP pGroup = NULL; PLIST_ENTRY listEntry; PPREFERRED_ENTRY preferredEntry; BOOL bLocked = FALSE; // // Chittur Subbaraman (chitturs) - 4/18/99 // // If FM groups are not fully initialized or FM is shutting down, then // don't do anything. // if ( !FmpFMGroupsInited || FmpShutdown ) { return(ERROR_SUCCESS); } // // Find the specified Group. // pGroup = OmReferenceObjectById( ObjectTypeGroup, GroupId ); if ( pGroup == NULL ) { dwStatus = ERROR_GROUP_NOT_FOUND; return(dwStatus); } ClRtlLogPrint(LOG_NOISE, "[FM] DeleteGroup %1!ws!, address = %2!lx!.\n", OmObjectId(pGroup), pGroup ); // // Chittur Subbaraman (chitturs) - 1/12/99 // // Try to acquire lock, and make sure the Contains list is empty. // // Most of the calls to manipulate groups make calls to the owner // node of the group and this operation is serialized by GUM. So, // there is no major danger if we do the operations in this function // without holding the group lock. However, we can't rule out // corruption 100% as of now. // // If you block within the GUM handler here, then no events in // the cluster proceed forward and things come to a grinding halt. // // A case in point: // (1) Thread 1 (the thread that calls this function) grabs the // GUM lock and waits for the group lock. // (2) Thread 2 (FmWorkerThread) grabs the group lock and calls // resmon attempting to close a resource. It gets blocked on // the resmon eventlist lock. // (3) Thread 3 calls RmResourceControl to set the resource name // which grabs the resmon eventlist lock and then in turn calls // ClusterRegSetValue and then gets blocked on the GUM lock. // FmpTryAcquireLocalGroupLock( pGroup, bLocked ); if ( !IsListEmpty( &pGroup->Contains ) ) { dwStatus = ERROR_DIR_NOT_EMPTY; goto FnExit; } // // Close the Group's registry key. // DmRundownList( &pGroup->DmRundownList ); if ( pGroup->RegistryKey != NULL ) { DmCloseKey( pGroup->RegistryKey ); pGroup->RegistryKey = NULL; } // // Remove from the node list // dwStatus = OmRemoveObject( pGroup ); ClusterEvent( CLUSTER_EVENT_GROUP_DELETED, pGroup ); // // This dereference would normally cause the group to eventually disappear, // however the event notification above will keep a ref on the object // until all notifications have been delivered. // OmDereferenceObject( pGroup ); // // Make sure the preferred owners list is drained. // while ( !IsListEmpty( &pGroup->PreferredOwners ) ) { listEntry = RemoveHeadList(&pGroup->PreferredOwners); preferredEntry = CONTAINING_RECORD( listEntry, PREFERRED_ENTRY, PreferredLinkage ); OmDereferenceObject( preferredEntry->PreferredNode ); LocalFree( preferredEntry ); } // // Free the string associated with the AntiAffinityClassName field. // LocalFree ( pGroup->lpszAntiAffinityClassName ); pGroup->dwStructState |= FM_GROUP_STRUCT_MARKED_FOR_DELETE; FnExit: if( bLocked ) { FmpReleaseLocalGroupLock( pGroup ); } // // Dereference for reference above. // if (pGroup) OmDereferenceObject( pGroup ); return(dwStatus); } // FmpUpdateDeleteGroup /**** @func DWORD | FmpUpdateGroupIntendedOwner| This update is called on a move just before the source node requests the target node to take over the group. @parm IN BOOL | bSourceNode | set to TRUE, if the update originated at this node. @parm IN PFM_GROUP | pszGroupId | The ID of the group that is about to move. @parm IN PDWORD | pdwNodeId| A pointer to a DWORD that contains the ID of the node that is the destination of this move. It is set to ClusterInvalidNodeId by the destination node when it has accepted the group. @comm The purpose of this update is to let all nodes know that a move is impending. If the source node dies while a move is in progress then preference is given to the target of the move rather than the node that is chosen by the FmpUpdateAssignOwnerToGroups @rdesc Returns a result code. ERROR_SUCCESS on success. ****/ DWORD FmpUpdateGroupIntendedOwner( IN BOOL SourceNode, IN LPCWSTR pszGroupId, IN PDWORD pdwNodeId ) { PFM_GROUP pGroup = NULL; DWORD dwStatus = ERROR_SUCCESS; PNM_NODE pNode = NULL; PNM_NODE pPrevNode; WCHAR pszNodeId[6]; if ( !FmpFMGroupsInited ) { return(ERROR_SUCCESS); } pGroup = OmReferenceObjectById( ObjectTypeGroup, pszGroupId ); if (pGroup == NULL) { dwStatus = ERROR_GROUP_NOT_FOUND; goto FnExit; } if (*pdwNodeId != ClusterInvalidNodeId) { wsprintfW(pszNodeId, L"%u", *pdwNodeId); pNode = OmReferenceObjectById(ObjectTypeNode, pszNodeId); if (pNode == NULL) { dwStatus = ERROR_CLUSTER_NODE_NOT_FOUND; goto FnExit; } } else if (pGroup->pIntendedOwner == NULL) { dwStatus = ERROR_CLUSTER_INVALID_NODE; ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateGroupIntendedOwner: Group <%1!ws!> intended owner is already invalid, not setting....\n", pszGroupId); goto FnExit; } // // HACKHACK: Chittur Subbaraman (chitturs) - 5/20/99 // Comment out as a temporary solution to avoid deadlocks. // // FmpAcquireLocalGroupLock(pGroup); pPrevNode = pGroup->pIntendedOwner; //set the new owner node, incr ref count if (pNode) OmReferenceObject(pNode); pGroup->pIntendedOwner = pNode; //decr ref count on previous owner if (pPrevNode) OmDereferenceObject(pPrevNode); // // HACKHACK: Chittur Subbaraman (chitturs) - 5/20/99 // Comment out as a temporary solution to avoid deadlocks. // // FmpReleaseLocalGroupLock(pGroup); FnExit: if (pGroup) OmDereferenceObject(pGroup); if (pNode) OmDereferenceObject(pNode); return(dwStatus); } /**** @func DWORD | FmpUpdateAssignOwnerToGroups| This update is made when a node goes down to take ownership of all the orphaned groups. @parm IN BOOL | bSourceNode | set to TRUE, if the update originated at this node. @parm IN LPCWSTR | pszGroupId | The ID of the group that is about to move. @parm IN PDWORD | pdwNodeId| A pointer to a DWORD that contains the ID of the node that is the destination of this move. It is set to ClusterInvalidNodeId by the destination node when it has accepted the group. @comm The purpose of this update is to let all nodes know that a move is impending. If the source node dies while a move is in progress , then preference is given to the target of the move rather than the node that is chosen by the FmpClaimNodeGroups algorithm. @rdesc returns ERROR_SUCCESS. ****/ DWORD FmpUpdateAssignOwnerToGroups( IN BOOL SourceNode, IN LPCWSTR pszNodeId ) { PNM_NODE pNode = NULL; DWORD dwStatus = ERROR_SUCCESS; // // Chittur Subbaraman (chitturs) - 4/18/99 // // If FM groups are not fully initialized or FM is shutting down, then // don't do anything. // if ( !FmpFMGroupsInited || FmpShutdown ) { return(ERROR_SUCCESS); } pNode = OmReferenceObjectById( ObjectTypeNode, pszNodeId ); if (!pNode) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateAssignOwnersToGroups, %1!ws! node not found\n", pszNodeId); //should we return failure here //is evict of a node synchronized with everything goto FnExit; } //if this update has already been seen after the node down //ignore this one if (gFmpNodeArray[NmGetNodeId(pNode)].dwNodeDownProcessingInProgress == 0) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateAssignOwnersToGroups, %1!ws! node down has been processed already\n", pszNodeId); goto FnExit; } // // Assign ownership to all groups owned by the dead node // dwStatus = FmpAssignOwnersToGroups(pNode, NULL, NULL); if (dwStatus != ERROR_SUCCESS) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateAssignOwnersToGroups failed %1!d!\n", dwStatus); } //mark that the node down processing has been done gFmpNodeArray[NmGetNodeId(pNode)].dwNodeDownProcessingInProgress = 0; FnExit: if (pNode) OmDereferenceObject(pNode); return(dwStatus); } /**** @func DWORD | FmpUpdateApproveJoin| The joining node makes this update call. @parm IN BOOL | bSourceNode | set to TRUE, if the update originated at this node. @parm IN LPCWSTR | pszGroupId | The ID of the group that is about to move. @parm IN PDWORD | pdwNodeId| A pointer to a DWORD that contains the ID of the node that is the destination of this move. It is set to ClusterInvalidNodeId by the destination node when it has accepted the group. @comm The purpose of this update is to let all nodes know that a move is impending. If the source node dies while a move is in progress , then preference is given to the target of the move rather than the node that is chosen by the FmpClaimNodeGroups algorithm. @rdesc returns ERROR_SUCCESS. ****/ DWORD FmpUpdateApproveJoin( IN BOOL SourceNode, IN LPCWSTR pszNodeId ) { PNM_NODE pNode = NULL; DWORD dwStatus = ERROR_SUCCESS; // // Chittur Subbaraman (chitturs) - 4/18/99 // // If FM groups are not fully initialized or FM is shutting down, then // don't do anything. // if ( !FmpFMGroupsInited || FmpShutdown ) { return(ERROR_SUCCESS); } pNode = OmReferenceObjectById( ObjectTypeNode, pszNodeId ); if (!pNode) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateAssignOwnersToGroups, %1!ws! node not found\n", pszNodeId); //should we return failure here //is evict of a node synchronized with everything goto FnExit; } if (pNode == NmLocalNode) { // SS: can I become the locker now // If so, there what do I do //i approve of my own join goto FnExit; } //if a node is trying to join before the processing //for its last death has been completed, ask it to retry if (gFmpNodeArray[NmGetNodeId(pNode)].dwNodeDownProcessingInProgress == 1) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateApproveJoin, %1!ws! node down hasnt been processed as yet\n", pszNodeId); dwStatus = ERROR_RETRY; goto FnExit; } FnExit: if (pNode) OmDereferenceObject(pNode); return(dwStatus); } /**** @func DWORD | FmpUpdateCreateGroup | GUM update handler for creating a group. @parm IN OUT PGUM_CREATE_GROUP | pGumGroup | Buffer containing group info @parm IN BOOL | bSourceNode | Indicates whether this call originated from this node. @comm This GUM update creates a group and is structured as a local transaction so that both registry entries and in-memory structures are updated consistently. @rdesc Returns ERROR_SUCCESS on success. A Win32 error code otherwise. ****/ DWORD FmpUpdateCreateGroup( IN OUT PGUM_CREATE_GROUP pGumGroup, IN BOOL bSourceNode ) { DWORD dwStatus = ERROR_SUCCESS; HDMKEY hKey = NULL; DWORD dwDisposition; HLOCALXSACTION hXsaction = NULL; LPCWSTR lpszNodeId = NULL; PNM_NODE pNode = NULL; DWORD dwGroupIdLen = 0; DWORD dwGroupNameLen = 0; LPWSTR lpszGroupId = NULL; LPCWSTR lpszGroupName = NULL; BOOL bLocked = FALSE; // // Chittur Subbaraman (chitturs) - 5/27/99 // // Restructure this GUM update as a local transaction. // dwGroupIdLen = pGumGroup->GroupIdLen; dwGroupNameLen = pGumGroup->GroupNameLen; lpszGroupId = pGumGroup->GroupId; lpszGroupName = (PWSTR)((PCHAR)lpszGroupId + dwGroupIdLen ); ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateGroup: Entry for group %1!ws!...\n", lpszGroupId); // // Start a transaction // hXsaction = DmBeginLocalUpdate(); if ( !hXsaction ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateCreateGroup, Failed in starting a transaction for group %1!ws!, Status =%2!d!....\n", lpszGroupId, dwStatus); return( dwStatus ); } // // Create the new group key. // hKey = DmLocalCreateKey( hXsaction, DmGroupsKey, lpszGroupId, 0, KEY_READ | KEY_WRITE, NULL, &dwDisposition ); if ( hKey == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateCreateGroup, Failed in creating the group key for group %1!ws!, Status =%2!d!....\n", lpszGroupId, dwStatus); goto FnExit; } if ( dwDisposition != REG_CREATED_NEW_KEY ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateGroup used GUID %1!ws! that already existed! This is impossible.\n", lpszGroupId); dwStatus = ERROR_ALREADY_EXISTS; goto FnExit; } CL_ASSERT( dwDisposition == REG_CREATED_NEW_KEY ); // // Set the group name in the registry // dwStatus = DmLocalSetValue( hXsaction, hKey, CLUSREG_NAME_GRP_NAME, REG_SZ, ( CONST BYTE * ) lpszGroupName, ( lstrlenW( lpszGroupName ) + 1 ) * sizeof( WCHAR ) ); if( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateGroup: DmLocalSetValue for group %1!ws! fails, Status = %2!d!...\n", lpszGroupId, dwStatus); goto FnExit; } // // We really shouldn't be acquiring locks here... but // we'll try anyway. If we fail, we must return an error // because we have nothing to return. // FmpTryAcquireGroupLock( bLocked, 500 ); if ( !bLocked ) { pGumGroup->Group = NULL; dwStatus = ERROR_SHARING_VIOLATION; goto FnExit; } pGumGroup->Group = FmpCreateGroup( lpszGroupId, TRUE ); if ( pGumGroup->Group == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateCreateGroup, FmpCreateFroup failed for group %1!ws!, Status =%2!d!....\n", lpszGroupId, dwStatus); goto FnExit; } else { if ( bSourceNode ) { OmReferenceObject( pGumGroup->Group ); OmReferenceObject( NmLocalNode ); pNode = NmLocalNode; } else { lpszNodeId = (PWSTR)((PCHAR)lpszGroupId + dwGroupIdLen + dwGroupNameLen ); pNode = OmReferenceObjectById( ObjectTypeNode, lpszNodeId ); if ( pNode == NULL ) { CL_LOGFAILURE( ERROR_CLUSTER_NODE_NOT_FOUND ); dwStatus = ERROR_CLUSTER_NODE_NOT_FOUND; ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateCreateGroup, Could not find node for group %1!ws!, Status =%2!d!....\n", lpszGroupId, dwStatus); CsInconsistencyHalt( ERROR_CLUSTER_NODE_NOT_FOUND ); } } CL_ASSERT( pGumGroup->Group->OwnerNode == NULL ); if ( !FmpInPreferredList( pGumGroup->Group, pNode , FALSE, NULL) ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateCreateGroup, node %1!ws! is not in preferred list for group %2!ws!.\n", OmObjectId( pNode ), OmObjectId( pGumGroup->Group )); } pGumGroup->Group->OwnerNode = pNode; if ( OmSetObjectName( pGumGroup->Group, lpszGroupName ) != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateCreateGroup, Cannot set name for group %1!ws!...\n", OmObjectId( pGumGroup->Group )); } ClusterEvent( CLUSTER_EVENT_GROUP_ADDED, pGumGroup->Group ); } FnExit: if ( bLocked ) { FmpReleaseGroupLock( ); } if ( hKey != NULL ) { DmCloseKey( hKey ); } if ( ( dwStatus == ERROR_SUCCESS ) && ( hXsaction != NULL ) ) { DmCommitLocalUpdate( hXsaction ); } else { if ( hXsaction ) DmAbortLocalUpdate( hXsaction ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateGroup: Exit for group %1!ws!, Status=%2!u!...\n", lpszGroupId, dwStatus); return( dwStatus ); } /**** @func DWORD | FmpUpdateCompleteGroupMove | This update is made when FmpTakeGroupRequest fails with an RPC error. @parm IN BOOL | bSourceNode | Set to TRUE, if the update originated at this node. Not used. @parm IN LPCWSTR | pszNodeId | The ID of the dead node. @parm IN LPCWSTR | pszGroupId | The ID of the group which was in the middle of the move. @comm The purpose of this update is to let the ownership of the group which was in the middle of the move determined consistently. @rdesc Returns ERROR_SUCCESS. ****/ DWORD FmpUpdateCompleteGroupMove( IN BOOL bSourceNode, IN LPCWSTR pszNodeId, IN LPCWSTR pszGroupId ) { PNM_NODE pNode = NULL; PFM_GROUP pGroup = NULL; DWORD dwStatus = ERROR_SUCCESS; // // Chittur Subbaraman (chitturs) - 4/2/2000 // // If FM groups are not fully initialized, then don't do anything. // Don't check for shutdown since we need to handle take group // exceptions for the quorum group even during a shutdown. // if ( !FmpFMGroupsInited ) { return( ERROR_SUCCESS ); } pNode = OmReferenceObjectById( ObjectTypeNode, pszNodeId ); if ( !pNode ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCompleteGroupMove, %1!ws! node not found\n", pszNodeId); goto FnExit; } pGroup = OmReferenceObjectById( ObjectTypeGroup, pszGroupId ); if ( !pGroup ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCompleteGroupMove, %1!ws! group not found\n", pszGroupId); goto FnExit; } // // Assign ownership to this group which was in the middle of a move // dwStatus = FmpAssignOwnersToGroups( pNode, pGroup, NULL ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCompleteGroupMove failed with error %1!d!\n", dwStatus); } FnExit: if ( pNode ) OmDereferenceObject( pNode ); if ( pGroup ) OmDereferenceObject( pGroup ); return( dwStatus ); } DWORD FmpUpdateCheckAndSetGroupOwner( IN BOOL bSourceNode, IN LPCWSTR lpszGroupId, IN LPCWSTR lpszNodeId ) /*++ Routine Description: GUM update handler called from FmpTakeGroupRequest for NT5 cluster to set the group owner ONLY IF its intended owner is the future owner node. Arguments: bSourceNode - Supplies whether or not this node was the source of the update lpszGroupId - Supplies the id of the resource whose state is changing lpszNodeId - Supplies the node id of the group owner. Return Value: ERROR_SUCCESS if successful Win32 error code otherwise --*/ { PFM_GROUP pGroup = NULL; DWORD dwStatus = ERROR_SUCCESS; PNM_NODE pNode = NULL; PNM_NODE pPrevNode = NULL; //dont check for shutdown - we cant afford to lose ownership notifications //while we are shutting down //since we dont destroy any fm structures - there shouldnt be a problem in //handling these if ( !FmpFMGroupsInited ) { return( ERROR_SUCCESS ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCheckAndSetGroupOwner: Entry for Group = <%1!ws!>....\n", lpszGroupId); // // Chittur Subbaraman (chitturs) - 7/27/99 // // This GUM handler sets the group ownership only if the future owner // node is the group's intended owner. If the intended owner is NULL, // it means the node down processing GUM handler has taken charge // of this group. If the intended owner is not NULL and not the // future owner node, then it means that the node down processing // GUM handler has assigned ownership to the group and the group // started moving to a different target before the FmpTakeGroupRequest // that issued this GUM due as a part of the first move operation // got a chance to execute. In both cases, lay your hands off the // group. // pGroup = OmReferenceObjectById( ObjectTypeGroup, lpszGroupId ); if ( pGroup == NULL ) { ClRtlLogPrint(LOG_ERROR, "[FM] FmpUpdateCheckAndSetGroupOwner: GroupID = %1!ws! could not be found...\n", lpszGroupId); dwStatus = ERROR_GROUP_NOT_FOUND; goto FnExit; } pNode = OmReferenceObjectById( ObjectTypeNode, lpszNodeId ); if ( pNode == NULL ) { ClRtlLogPrint(LOG_ERROR, "[FM] FmpUpdateCheckAndSetGroupOwner: NodeID = %1!ws! could not be found, Group = %2!ws!...\n", lpszNodeId, lpszGroupId); dwStatus = ERROR_CLUSTER_NODE_NOT_FOUND; goto FnExit; } if ( pGroup->pIntendedOwner != pNode ) { ClRtlLogPrint(LOG_ERROR, "[FM] FmpUpdateCheckAndSetGroupOwner: Group = <%1!ws!> intended owner is invalid, not setting group ownership...\n", lpszGroupId); dwStatus = ERROR_GROUP_NOT_AVAILABLE; goto FnExit; } pPrevNode = pGroup->OwnerNode; // // Set the new owner node, incr ref count // OmReferenceObject( pNode ); pGroup->OwnerNode = pNode; // // Decrement the ref count on previous owner // OmDereferenceObject( pPrevNode ); // // Generate an event to signify group owner node change // ClusterEvent( CLUSTER_EVENT_GROUP_CHANGE, pGroup ); FnExit: if ( pGroup ) OmDereferenceObject( pGroup ); if ( pNode ) OmDereferenceObject( pNode ); ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCheckAndSetGroupOwner: Exit for Group = <%1!ws!>, Status=%2!u!....\n", lpszGroupId, dwStatus); return( dwStatus ); } DWORD FmpUpdateCreateResourceType( IN PVOID Buffer ) /*++ Routine Description: GUM update handler called for creating a resource type. For NT5.1 clusters, this GUM handler does both the registry and in-memory updates as a local transaction. Arguments: Buffer - Buffer containing resource type information. Return Value: ERROR_SUCCESS if successful Win32 error code otherwise --*/ { PFM_RESTYPE pResType = NULL; LPWSTR lpszTypeName; LPWSTR lpszDisplayName; LPWSTR lpszDllName; DWORD dwStatus = ERROR_SUCCESS; DWORD dwLooksAlive; DWORD dwIsAlive; DWORD dwDllNameLen; DWORD dwDisplayNameLen; DWORD dwTypeNameLen; DWORD dwClusterHighestVersion; DWORD dwDisposition; HLOCALXSACTION hXsaction = NULL; HDMKEY hTypeKey = NULL; // // Chittur Subbaraman (chitturs) - 2/8/2000 // // Rewrite this GUM handler as a local transaction (for NT5.1 only) // lpszTypeName = ( LPWSTR ) Buffer; ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateResourceType, Entry for resource type %1!ws!...\n", lpszTypeName); pResType = OmReferenceObjectById( ObjectTypeResType, lpszTypeName ); if ( pResType ) { dwStatus = ERROR_ALREADY_EXISTS; ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResourceType, Resource type %1!ws! already exists, Status = %2!d!...\n", lpszTypeName, dwStatus); OmDereferenceObject( pResType ); return( dwStatus ); } dwTypeNameLen = ( lstrlenW( lpszTypeName ) + 1 ) * sizeof( WCHAR ); lpszDisplayName = ( LPWSTR ) ( ( PCHAR ) Buffer + dwTypeNameLen ); dwDisplayNameLen = ( lstrlenW( lpszDisplayName ) + 1 ) * sizeof( WCHAR ); lpszDllName = ( LPWSTR ) ( ( PCHAR ) Buffer + dwTypeNameLen + dwDisplayNameLen ); dwDllNameLen = ( lstrlenW( lpszDllName ) + 1 ) * sizeof( WCHAR ); NmGetClusterOperationalVersion( &dwClusterHighestVersion, NULL, NULL ); if ( CLUSTER_GET_MAJOR_VERSION( dwClusterHighestVersion ) < NT51_MAJOR_VERSION ) { goto skip_registry_updates; } dwLooksAlive = *( DWORD UNALIGNED * ) ( ( ( PCHAR ) Buffer + dwTypeNameLen + dwDisplayNameLen + dwDllNameLen ) ); dwIsAlive = *( DWORD UNALIGNED * ) ( ( ( PCHAR ) Buffer + dwTypeNameLen + dwDisplayNameLen + dwDllNameLen + sizeof( DWORD ) ) ); // // Start a transaction // hXsaction = DmBeginLocalUpdate(); if ( !hXsaction ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResourceType, Failed in starting a transaction for resource type %1!ws!, Status =%2!d!....\n", lpszTypeName, dwStatus); return( dwStatus ); } hTypeKey = DmLocalCreateKey( hXsaction, DmResourceTypesKey, lpszTypeName, 0, KEY_READ | KEY_WRITE, NULL, &dwDisposition ); if ( hTypeKey == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResourceType, Failed in creating the resource types key for resource type %1!ws!, Status =%2!d!....\n", lpszTypeName, dwStatus); goto FnExit; } if ( dwDisposition != REG_CREATED_NEW_KEY ) { dwStatus = ERROR_ALREADY_EXISTS; ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResourceType, Duplicate resource types key exists for resource type %1!ws!, Status =%2!d!....\n", lpszTypeName, dwStatus); goto FnExit; } dwStatus = DmLocalSetValue( hXsaction, hTypeKey, CLUSREG_NAME_RESTYPE_DLL_NAME, REG_SZ, ( CONST BYTE * )lpszDllName, dwDllNameLen ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResourceType, Failed in setting the DLL name for resource type %1!ws!, Status =%2!d!....\n", lpszTypeName, dwStatus); goto FnExit; } dwStatus = DmLocalSetValue( hXsaction, hTypeKey, CLUSREG_NAME_RESTYPE_IS_ALIVE, REG_DWORD, ( CONST BYTE * )&dwIsAlive, sizeof( DWORD ) ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResourceType, Failed in setting the Is Alive interval for resource type %1!ws!, Status =%2!d!....\n", lpszTypeName, dwStatus); goto FnExit; } dwStatus = DmLocalSetValue( hXsaction, hTypeKey, CLUSREG_NAME_RESTYPE_LOOKS_ALIVE, REG_DWORD, ( CONST BYTE * )&dwLooksAlive, sizeof( DWORD ) ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResourceType, Failed in setting the Looks Alive interval for resource type %1!ws!, Status =%2!d!....\n", lpszTypeName, dwStatus); goto FnExit; } dwStatus = DmLocalSetValue( hXsaction, hTypeKey, CLUSREG_NAME_RESTYPE_NAME, REG_SZ, ( CONST BYTE * )lpszDisplayName, dwDisplayNameLen ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResourceType, Failed in setting the display name for resource type %1!ws!, Status =%2!d!....\n", lpszTypeName, dwStatus); goto FnExit; } skip_registry_updates: pResType = FmpCreateResType( lpszTypeName ); if ( pResType != NULL ) { dwStatus = FmpRmLoadResTypeDll( pResType ); if ( dwStatus == ERROR_SUCCESS ) { pResType->State = RESTYPE_STATE_LOADS; } else { ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateResourceType: Unable to load dll for resource type %1!ws!, Status=%2!u!...\n", lpszTypeName, dwStatus); // // Some nodes may not support this resource type. So, consider // the loading failure as success. However, log the error. // dwStatus = ERROR_SUCCESS; } } else { dwStatus = GetLastError(); ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateResourceType: Unable to create resource type %1!ws!, Status=%2!u!...\n", lpszTypeName, dwStatus); } FnExit: if ( hTypeKey != NULL ) { DmCloseKey( hTypeKey ); } if ( ( dwStatus == ERROR_SUCCESS ) && ( hXsaction != NULL ) ) { DmCommitLocalUpdate( hXsaction ); } else { if ( hXsaction ) DmAbortLocalUpdate( hXsaction ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateResourceType: Exit for resource type %1!ws!, Status=%2!u!...\n", lpszTypeName, dwStatus); return( dwStatus ); } DWORD FmpUpdateCreateResource( IN OUT PGUM_CREATE_RESOURCE pGumResource ) { /*++ Routine Description: GUM update handler called for creating a resource. For NT5.1 clusters, this GUM handler does both the registry and in-memory updates as a local transaction. Arguments: pGumResource - Structure containing resource information. Return Value: ERROR_SUCCESS if successful Win32 error code otherwise --*/ DWORD dwStatus = ERROR_SUCCESS; HDMKEY hResourceKey = NULL; HDMKEY hGroupKey = NULL; DWORD dwDisposition; HLOCALXSACTION hXsaction = NULL; DWORD dwClusterHighestVersion; PGUM_CREATE_RESOURCE GumResource; LPWSTR lpszResourceId = NULL; LPWSTR lpszResourceName = NULL; LPWSTR lpszResourceType = NULL; PFM_GROUP pGroup = NULL; PFM_RESTYPE pResType = NULL; DWORD dwpollIntervals = CLUSTER_RESOURCE_USE_DEFAULT_POLL_INTERVAL; DWORD dwPersistentState = 0; DWORD dwResourceTypeLen = 0; DWORD dwFlags = 0; HDMKEY hParamKey = NULL; // // Chittur Subbaraman (chitturs) - 1/30/2000 // // Restructure this GUM update as a local transaction. // lpszResourceId = (LPWSTR)( (PCHAR) pGumResource->GroupId + pGumResource->GroupIdLen ); lpszResourceName = (LPWSTR)( (PCHAR) pGumResource->GroupId + pGumResource->GroupIdLen + pGumResource->ResourceIdLen ); pGroup = OmReferenceObjectById( ObjectTypeGroup, pGumResource->GroupId ); if ( pGroup == NULL ) { CL_LOGFAILURE( ERROR_GROUP_NOT_FOUND ); ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: Group for resource %1!ws! not found.\n", lpszResourceId); return( ERROR_GROUP_NOT_FOUND ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateResource: Entry for resource %1!ws!...\n", lpszResourceId); // // If we are dealing with the mixed mode cluster, don't bother to // do these registry updates since the API layer would do it. // NmGetClusterOperationalVersion( &dwClusterHighestVersion, NULL, NULL ); if ( CLUSTER_GET_MAJOR_VERSION( dwClusterHighestVersion ) < NT51_MAJOR_VERSION ) { ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateResource: Skipping registry updates for resource %1!ws!...\n", lpszResourceId); goto skip_registry_updates; } dwResourceTypeLen = *( DWORD UNALIGNED * )( (PCHAR) pGumResource->GroupId + pGumResource->GroupIdLen + pGumResource->ResourceIdLen + (lstrlenW(lpszResourceName)+1) * sizeof(WCHAR) ); lpszResourceType = (LPWSTR)( (PCHAR) pGumResource->GroupId + pGumResource->GroupIdLen + pGumResource->ResourceIdLen + (lstrlenW(lpszResourceName)+1) * sizeof(WCHAR) + sizeof( DWORD ) ); dwFlags = *( DWORD UNALIGNED * )( (PCHAR) pGumResource->GroupId + pGumResource->GroupIdLen + pGumResource->ResourceIdLen + (lstrlenW(lpszResourceName)+1) * sizeof(WCHAR) + sizeof( DWORD ) + dwResourceTypeLen ); // // Start a transaction // hXsaction = DmBeginLocalUpdate(); if ( !hXsaction ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateCreateResource, Failed in starting a transaction for resource %1!ws!, Status =%2!d!....\n", lpszResourceId, dwStatus); OmDereferenceObject( pGroup ); return( dwStatus ); } // // Create the new resources key. // hResourceKey = DmLocalCreateKey( hXsaction, DmResourcesKey, lpszResourceId, 0, KEY_READ | KEY_WRITE, NULL, &dwDisposition ); if ( hResourceKey == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateCreateResource, Failed in creating the resource key for resource %1!ws!, Status =%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } if ( dwDisposition != REG_CREATED_NEW_KEY ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource used GUID %1!ws! that already existed! This is impossible.\n", lpszResourceId); dwStatus = ERROR_ALREADY_EXISTS; goto FnExit; } CL_ASSERT( dwDisposition == REG_CREATED_NEW_KEY ); // // Set the resource name in the registry // dwStatus = DmLocalSetValue( hXsaction, hResourceKey, CLUSREG_NAME_RES_NAME, REG_SZ, (CONST BYTE *)lpszResourceName, (lstrlenW(lpszResourceName)+1)*sizeof(WCHAR) ); if( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmLocalSetValue (resource name) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } // // Set the resource's type in the registry // Note we reference the resource type and use its ID // so that the case is correct. // pResType = OmReferenceObjectById( ObjectTypeResType, lpszResourceType ); CL_ASSERT( pResType != NULL ); dwStatus = DmLocalSetValue( hXsaction, hResourceKey, CLUSREG_NAME_RES_TYPE, REG_SZ, (CONST BYTE *) OmObjectId( pResType ), (lstrlenW( lpszResourceType ) + 1 )*sizeof(WCHAR) ); OmDereferenceObject( pResType ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmLocalSetValue (resource type) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } // // Set the resource's poll intervals in the registry. // dwStatus = DmLocalSetValue( hXsaction, hResourceKey, CLUSREG_NAME_RES_LOOKS_ALIVE, REG_DWORD, (CONST BYTE *)&dwpollIntervals, 4 ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmLocalSetValue (looks alive) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } dwStatus = DmLocalSetValue( hXsaction, hResourceKey, CLUSREG_NAME_RES_IS_ALIVE, REG_DWORD, (CONST BYTE *)&dwpollIntervals, 4); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmLocalSetValue (is alive) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } // // If this resource should be started in a separate monitor, set that // parameter now. // if ( dwFlags & CLUSTER_RESOURCE_SEPARATE_MONITOR ) { DWORD dwSeparateMonitor = 1; dwStatus = DmLocalSetValue( hXsaction, hResourceKey, CLUSREG_NAME_RES_SEPARATE_MONITOR, REG_DWORD, (CONST BYTE *)&dwSeparateMonitor, sizeof( dwSeparateMonitor ) ); if ( dwStatus != ERROR_SUCCESS) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmLocalSetValue (separate monitor) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } } // // Create a Parameters key for the resource. // hParamKey = DmLocalCreateKey( hXsaction, hResourceKey, CLUSREG_KEYNAME_PARAMETERS, 0, KEY_READ, NULL, &dwDisposition ); if ( hParamKey == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmLocalCreateKey (parameters) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); CL_LOGFAILURE( dwStatus ); goto FnExit; } else { DmCloseKey( hParamKey ); } hGroupKey = DmOpenKey( DmGroupsKey, OmObjectId(pGroup), KEY_READ | KEY_WRITE); if ( hGroupKey == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmOpenKey (group key) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } // // Chittur Subbaraman (chitturs) - 5/25/99 // // Make sure you set the persistent state of the resource to // ClusterResourceOffline before you create the resource. If // this is not done, if you create a resource in a group which // is online, the group's persistent state value (i.e., 1 in // this case) is inherited by the resource in FmpQueryResourceInfo // (only the memory state is set and not the registry state and // this was a problem as well) and if you move such a group to // another node, it will bring the newly created resource online. // dwStatus = DmLocalSetValue( hXsaction, hResourceKey, CLUSREG_NAME_RES_PERSISTENT_STATE, REG_DWORD, ( CONST BYTE * )&dwPersistentState, sizeof( DWORD ) ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmLocalSetValue (persistent state) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } // // Add the resource to the Contains value of the specified group. // dwStatus = DmLocalAppendToMultiSz( hXsaction, hGroupKey, CLUSREG_NAME_GRP_CONTAINS, lpszResourceId ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: DmLocalAppendToMultiSz (contains key) for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); goto FnExit; } skip_registry_updates: FmpAcquireResourceLock(); pGumResource->Resource = FmpCreateResource( pGroup, lpszResourceId, lpszResourceName, FALSE ); if ( pGumResource->Resource == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateCreateResource: FmpCreateResource for resource %1!ws! fails, Status = %2!d!...\n", lpszResourceId, dwStatus); } else { ClusterEvent( CLUSTER_EVENT_GROUP_PROPERTY_CHANGE, pGroup ); ClusterEvent( CLUSTER_EVENT_RESOURCE_ADDED, pGumResource->Resource ); if ( pGumResource->Resource ) { OmReferenceObject( pGumResource->Resource ); FmpPostWorkItem( FM_EVENT_RESOURCE_ADDED, pGumResource->Resource, 0 ); } } FmpReleaseResourceLock(); FnExit: if ( pGroup != NULL ) { OmDereferenceObject( pGroup ); } if ( hResourceKey != NULL ) { DmCloseKey( hResourceKey ); } if ( hGroupKey != NULL ) { DmCloseKey( hGroupKey ); } if ( ( dwStatus == ERROR_SUCCESS ) && ( hXsaction != NULL ) ) { DmCommitLocalUpdate( hXsaction ); } else { if ( hXsaction ) DmAbortLocalUpdate( hXsaction ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateCreateResource: Exit for resource %1!ws!, Status=%2!u!...\n", lpszResourceId, dwStatus); return( dwStatus ); } DWORD FmpUpdateDeleteResource( IN BOOL bSourceNode, IN LPCWSTR lpszResourceId ) /*++ Routine Description: GUM dispatch routine for deleting a resource. For NT5.1 clusters, this is structured as as local transaction. Arguments: bSourceNode - Supplies whether or not this node initiated the GUM update. Not used. lpszResourceId - Supplies the resource ID. Return Value: ERROR_SUCCESS if successful. Win32 error code otherwise. --*/ { PFM_RESOURCE pResource = NULL; PFM_GROUP pGroup = NULL; PLIST_ENTRY pListEntry = NULL; PDEPENDENCY pDependency = NULL; PPOSSIBLE_ENTRY pPossibleEntry = NULL; DWORD dwStatus; HLOCALXSACTION hXsaction = NULL; DWORD dwClusterHighestVersion; HDMKEY pGroupKey; // // Chittur Subbaraman (chitturs) - 9/7/2000 // // Structure this GUM update as a local transaction. // // // If FM groups are not fully initialized or FM is shutting down, then // don't do anything. // if ( !FmpFMGroupsInited || FmpShutdown ) { return( ERROR_SUCCESS ); } pResource = OmReferenceObjectById( ObjectTypeResource, lpszResourceId ); if ( pResource == NULL ) { ClRtlLogPrint(LOG_UNUSUAL, "[FM] FmpUpdateDeleteResource: Resource %1!ws! cannot be found....\n", lpszResourceId ); return( ERROR_RESOURCE_NOT_FOUND ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateDeleteResource: Delete resource %1!ws!, address %2!lx!....\n", lpszResourceId, pResource ); // // NOTE: It is difficult to include the checkpoint removal in a local transaction, so keep it // out for now. Also, note that these functions MUST be called BEFORE the Resources key is // deleted since they enumerate the values under "Resources\RegSync" and "Resources\CryptoSync". // if ( pResource->Group->OwnerNode == NmLocalNode ) { CpckRemoveResourceCheckpoints( pResource ); CpRemoveResourceCheckpoints( pResource ); } // // Start a transaction // hXsaction = DmBeginLocalUpdate(); if ( !hXsaction ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateDeleteResource: Failed in starting a transaction for resource %1!ws!, Status =%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } // // Cannot acquire group lock here to avoid deadlocks with this current design. // // // Remove all registry entries corresponding to the DependsOn list. // pListEntry = pResource->DependsOn.Flink; while ( pListEntry != &pResource->DependsOn ) { pDependency = CONTAINING_RECORD( pListEntry, DEPENDENCY, DependentLinkage ); CL_ASSERT( pDependency->DependentResource == pResource ); pListEntry = pListEntry->Flink; // // Note that the removal of registry entries is done as a local transaction. // dwStatus = FmpRemoveResourceDependency( hXsaction, pResource, pDependency->ProviderResource ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateDeleteResource: Unable to remove 'DependsOn' registry entries for resource %1!ws!, Status =%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } } // // Remove all registry entries corresponding to the ProvidesFor list. // pListEntry = pResource->ProvidesFor.Flink; while ( pListEntry != &pResource->ProvidesFor ) { pDependency = CONTAINING_RECORD( pListEntry, DEPENDENCY, ProviderLinkage ); CL_ASSERT( pDependency->ProviderResource == pResource ); pListEntry = pListEntry->Flink; // // Note that the removal of registry entries is done as a local transaction. // dwStatus = FmpRemoveResourceDependency( hXsaction, pDependency->DependentResource, pResource ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateDeleteResource: Unable to remove 'ProvidesFor' registry entries for resource %1!ws!, Status=%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } } // // If we are dealing with a Whistler-Win2K cluster, don't bother to // do these registry updates since the API layer would do it. // NmGetClusterOperationalVersion( &dwClusterHighestVersion, NULL, NULL ); if ( CLUSTER_GET_MAJOR_VERSION( dwClusterHighestVersion ) < NT51_MAJOR_VERSION ) { ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateDeleteResource: Skipping registry updates for resource %1!ws!...\n", lpszResourceId); goto skip_registry_updates; } dwStatus = DmLocalDeleteTree( hXsaction, DmResourcesKey, OmObjectId( pResource ) ); if ( ( dwStatus != ERROR_SUCCESS ) && ( dwStatus != ERROR_FILE_NOT_FOUND ) ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateDeleteResource: Unable to remove 'Resources' tree for resource %1!ws!, Status=%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } pGroupKey = DmOpenKey( DmGroupsKey, OmObjectId( pResource->Group ), KEY_READ | KEY_SET_VALUE ); if ( pGroupKey == NULL ) { dwStatus = GetLastError(); ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateDeleteResource: Unable to find 'Groups' key for resource %1!ws!, Status=%2!d!....\n", lpszResourceId, dwStatus); goto FnExit; } dwStatus = DmLocalRemoveFromMultiSz( hXsaction, pGroupKey, CLUSREG_NAME_GRP_CONTAINS, OmObjectId( pResource ) ); DmCloseKey( pGroupKey ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateDeleteResource: Unable to remove contains list for resource %1!ws! in group %2!ws!, Status=%3!d!....\n", lpszResourceId, OmObjectId( pResource->Group ), dwStatus); goto FnExit; } skip_registry_updates: // // Remove all list entries corresponding to the DependsOn list. // pListEntry = pResource->DependsOn.Flink; while ( pListEntry != &pResource->DependsOn ) { pDependency = CONTAINING_RECORD( pListEntry, DEPENDENCY, DependentLinkage ); pListEntry = pListEntry->Flink; RemoveEntryList( &pDependency->ProviderLinkage ); RemoveEntryList( &pDependency->DependentLinkage ); OmDereferenceObject( pDependency->DependentResource ); OmDereferenceObject( pDependency->ProviderResource ); LocalFree( pDependency ); } // // Remove all list entries corresponding to the ProvidesFor list. // pListEntry = pResource->ProvidesFor.Flink; while ( pListEntry != &pResource->ProvidesFor ) { pDependency = CONTAINING_RECORD( pListEntry, DEPENDENCY, ProviderLinkage ); pListEntry = pListEntry->Flink; RemoveEntryList( &pDependency->ProviderLinkage ); RemoveEntryList( &pDependency->DependentLinkage ); OmDereferenceObject( pDependency->DependentResource ); OmDereferenceObject( pDependency->ProviderResource ); LocalFree( pDependency ); } // // Remove all entries from the possible owners list. // while ( !IsListEmpty( &pResource->PossibleOwners ) ) { pListEntry = RemoveHeadList( &pResource->PossibleOwners ); pPossibleEntry = CONTAINING_RECORD( pListEntry, POSSIBLE_ENTRY, PossibleLinkage ); OmDereferenceObject( pPossibleEntry->PossibleNode ); LocalFree( pPossibleEntry ); } // // Remove this resource from the Contains list. // RemoveEntryList( &pResource->ContainsLinkage ); OmDereferenceObject( pResource ); // // Close the resource's registry key. // DmRundownList( &pResource->DmRundownList ); if ( pResource->RegistryKey != NULL ) { DmCloseKey( pResource->RegistryKey ); pResource->RegistryKey = NULL; } // // SS: we do not delete the reference to the resource here // since we will shortly have to add one before posting a notification // to the fm worker thread. // // Post a work item to close the resource in the resource handler. // Note that this must be done asynchronously as we cannot call // the resource monitor from a GUM handler. If we do, resources // do funny things and make deadlocks. // FmpPostWorkItem( FM_EVENT_RESOURCE_DELETED, pResource, 0 ); // // Decrement resource type reference. // if ( pResource->Type != NULL ) { OmDereferenceObject( pResource->Type ); pResource->Type = NULL; } // // Remove the resource from the resource list. // dwStatus = OmRemoveObject( pResource ); ClusterEvent( CLUSTER_EVENT_RESOURCE_DELETED, pResource ); ClusterEvent( CLUSTER_EVENT_GROUP_PROPERTY_CHANGE, pResource->Group ); // // Mark the resource as deleted // pResource->dwStructState = FM_RESOURCE_STRUCT_MARKED_FOR_DELETE; FnExit: OmDereferenceObject( pResource ); if ( ( dwStatus == ERROR_SUCCESS ) && ( hXsaction != NULL ) ) { DmCommitLocalUpdate( hXsaction ); } else { if ( hXsaction ) DmAbortLocalUpdate( hXsaction ); } ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateDeleteResource: Exit for resource %1!ws!, Status=%2!u!...\n", lpszResourceId, dwStatus); return( dwStatus ); } // FmpUpdateDeleteResource DWORD FmpUpdateUseRandomizedNodeListForGroups( IN BOOL SourceNode, IN LPCWSTR pszNodeId, IN PFM_GROUP_NODE_LIST pGroupNodeList ) /*++ Routine Description: GUM dispatch routine for using a randomized preferred list for group ownership on node down. Arguments: bSourceNode - Supplies whether or not this node initiated the GUM update. Not used. pszNodeId - Supplies the ID of the node that is down. pGroupNodeList - Randomized preferred node list for groups. Return Value: ERROR_SUCCESS if successful. Win32 error code otherwise. --*/ { PNM_NODE pNode = NULL; DWORD dwStatus = ERROR_SUCCESS; // // Chittur Subbaraman (chitturs) - 4/19/2001 // // If FM groups are not fully initialized or FM is shutting down, then // don't do anything. // if ( !FmpFMGroupsInited || FmpShutdown ) { return( ERROR_SUCCESS ); } pNode = OmReferenceObjectById( ObjectTypeNode, pszNodeId ); if ( !pNode ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateUseRandomizedNodeListForGroups: %1!ws! node not found...\n", pszNodeId); // // Should we return failure here, is evict of a node synchronized with everything // goto FnExit; } // // If this update has already been seen after the node down, ignore this one // if ( gFmpNodeArray[NmGetNodeId(pNode)].dwNodeDownProcessingInProgress == 0 ) { ClRtlLogPrint(LOG_NOISE, "[FM] FmpUpdateUseRandomizedNodeListForGroups: %1!ws! node down has been processed already...\n", pszNodeId); goto FnExit; } // // Assign ownership to all groups owned by the dead node // dwStatus = FmpAssignOwnersToGroups( pNode, NULL, pGroupNodeList ); if ( dwStatus != ERROR_SUCCESS ) { ClRtlLogPrint(LOG_CRITICAL, "[FM] FmpUpdateUseRandomizedNodeListForGroups: FmpAssignOwnersToGroups failed %1!d!\n", dwStatus); } // // Mark that the node down processing has been done // gFmpNodeArray[NmGetNodeId(pNode)].dwNodeDownProcessingInProgress = 0; FnExit: if ( pNode ) OmDereferenceObject( pNode ); return( dwStatus ); }// FmpUpdateUseRandomizedNodeListForGroups