| /* |
| * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.rmi.transport; |
| |
| import sun.rmi.transport.tcp.TCPConnection; |
| |
| import java.io.IOException; |
| import java.io.ObjectInputFilter; |
| import java.rmi.RemoteException; |
| import java.rmi.dgc.Lease; |
| import java.rmi.dgc.VMID; |
| import java.rmi.server.UID; |
| import java.security.AccessController; |
| import java.security.PrivilegedAction; |
| import java.util.ArrayList; |
| |
| /** |
| * Stubs to invoke DGC remote methods. |
| * Originally generated from RMIC but frozen to insert serialFilter. |
| */ |
| @SuppressWarnings({"deprecation", "serial"}) |
| public final class DGCImpl_Stub |
| extends java.rmi.server.RemoteStub |
| implements java.rmi.dgc.DGC { |
| private static final java.rmi.server.Operation[] operations = { |
| new java.rmi.server.Operation("void clean(java.rmi.server.ObjID[], long, java.rmi.dgc.VMID, boolean)"), |
| new java.rmi.server.Operation("java.rmi.dgc.Lease dirty(java.rmi.server.ObjID[], long, java.rmi.dgc.Lease)") |
| }; |
| |
| private static final long interfaceHash = -669196253586618813L; |
| |
| /** Registry max depth of remote invocations. **/ |
| private static int DGCCLIENT_MAX_DEPTH = 6; |
| |
| /** Registry maximum array size in remote invocations. **/ |
| private static int DGCCLIENT_MAX_ARRAY_SIZE = 10000; |
| |
| // constructors |
| public DGCImpl_Stub() { |
| super(); |
| } |
| |
| public DGCImpl_Stub(java.rmi.server.RemoteRef ref) { |
| super(ref); |
| } |
| |
| // methods from remote interfaces |
| |
| // implementation of clean(ObjID[], long, VMID, boolean) |
| public void clean(java.rmi.server.ObjID[] $param_arrayOf_ObjID_1, long $param_long_2, java.rmi.dgc.VMID $param_VMID_3, boolean $param_boolean_4) |
| throws java.rmi.RemoteException { |
| try { |
| StreamRemoteCall call = (StreamRemoteCall)ref.newCall((java.rmi.server.RemoteObject) this, |
| operations, 0, interfaceHash); |
| call.setObjectInputFilter(DGCImpl_Stub::leaseFilter); |
| try { |
| java.io.ObjectOutput out = call.getOutputStream(); |
| out.writeObject($param_arrayOf_ObjID_1); |
| out.writeLong($param_long_2); |
| out.writeObject($param_VMID_3); |
| out.writeBoolean($param_boolean_4); |
| } catch (java.io.IOException e) { |
| throw new java.rmi.MarshalException("error marshalling arguments", e); |
| } |
| ref.invoke(call); |
| ref.done(call); |
| } catch (java.lang.RuntimeException e) { |
| throw e; |
| } catch (java.rmi.RemoteException e) { |
| throw e; |
| } catch (java.lang.Exception e) { |
| throw new java.rmi.UnexpectedException("undeclared checked exception", e); |
| } |
| } |
| |
| // implementation of dirty(ObjID[], long, Lease) |
| public java.rmi.dgc.Lease dirty(java.rmi.server.ObjID[] $param_arrayOf_ObjID_1, long $param_long_2, java.rmi.dgc.Lease $param_Lease_3) |
| throws java.rmi.RemoteException { |
| try { |
| StreamRemoteCall call = |
| (StreamRemoteCall)ref.newCall((java.rmi.server.RemoteObject) this, |
| operations, 1, interfaceHash); |
| call.setObjectInputFilter(DGCImpl_Stub::leaseFilter); |
| try { |
| java.io.ObjectOutput out = call.getOutputStream(); |
| out.writeObject($param_arrayOf_ObjID_1); |
| out.writeLong($param_long_2); |
| out.writeObject($param_Lease_3); |
| } catch (java.io.IOException e) { |
| throw new java.rmi.MarshalException("error marshalling arguments", e); |
| } |
| ref.invoke(call); |
| java.rmi.dgc.Lease $result; |
| Connection connection = call.getConnection(); |
| try { |
| java.io.ObjectInput in = call.getInputStream(); |
| $result = (java.rmi.dgc.Lease) in.readObject(); |
| } catch (ClassCastException | IOException | ClassNotFoundException e) { |
| if (connection instanceof TCPConnection) { |
| // Modified to prevent re-use of the connection after an exception |
| ((TCPConnection) connection).getChannel().free(connection, false); |
| } |
| call.discardPendingRefs(); |
| throw new java.rmi.UnmarshalException("error unmarshalling return", e); |
| } finally { |
| ref.done(call); |
| } |
| return $result; |
| } catch (java.lang.RuntimeException e) { |
| throw e; |
| } catch (java.rmi.RemoteException e) { |
| throw e; |
| } catch (java.lang.Exception e) { |
| throw new java.rmi.UnexpectedException("undeclared checked exception", e); |
| } |
| } |
| |
| /** |
| * ObjectInputFilter to filter DGCClient return value (a Lease). |
| * The list of acceptable classes is very short and explicit. |
| * The depth and array sizes are limited. |
| * <p> |
| * The filter must accept normal and exception returns. |
| * A DGC server may throw exceptions that may have a cause |
| * and suppressed exceptions. |
| * Only exceptions in {@code java.base} and {@code java.rmi} are allowed. |
| * |
| * @param filterInfo access to class, arrayLength, etc. |
| * @return {@link ObjectInputFilter.Status#ALLOWED} if allowed, |
| * {@link ObjectInputFilter.Status#REJECTED} if rejected, |
| * otherwise {@link ObjectInputFilter.Status#UNDECIDED} |
| */ |
| private static ObjectInputFilter.Status leaseFilter(ObjectInputFilter.FilterInfo filterInfo) { |
| |
| if (filterInfo.depth() > DGCCLIENT_MAX_DEPTH) { |
| return ObjectInputFilter.Status.REJECTED; |
| } |
| Class<?> clazz = filterInfo.serialClass(); |
| if (clazz != null) { |
| while (clazz.isArray()) { |
| if (filterInfo.arrayLength() >= 0 && filterInfo.arrayLength() > DGCCLIENT_MAX_ARRAY_SIZE) { |
| return ObjectInputFilter.Status.REJECTED; |
| } |
| // Arrays are allowed depending on the component type |
| clazz = clazz.getComponentType(); |
| } |
| if (clazz.isPrimitive()) { |
| // Arrays of primitives are allowed |
| return ObjectInputFilter.Status.ALLOWED; |
| } |
| return (clazz == UID.class || |
| clazz == VMID.class || |
| clazz == Lease.class || |
| (Throwable.class.isAssignableFrom(clazz) && |
| (Object.class.getModule() == clazz.getModule() || |
| RemoteException.class.getModule() == clazz.getModule())) || |
| clazz == StackTraceElement.class || |
| clazz == ArrayList.class || // for suppressed exceptions, if any |
| clazz == Object.class || |
| clazz.getName().equals("java.util.Collections$EmptyList")) |
| ? ObjectInputFilter.Status.ALLOWED |
| : ObjectInputFilter.Status.REJECTED; |
| } |
| // Not a class, not size limited |
| return ObjectInputFilter.Status.UNDECIDED; |
| } |
| |
| } |
