/*
* Copyright (C)2009 - SSHJ Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.schmizz.sshj.util.gss;
import org.apache.sshd.server.auth.gss.UserAuthGSS;
import org.ietf.jgss.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.security.Provider;
/**
* Implements a fake Kerberos 5 mechanism. MINA only supports Kerberos 5 over
* GSS-API, so we can't implement a separate mechanism.
*/
public class BogusGSSManager
extends GSSManager {
public static final Oid KRB5_MECH = UserAuthGSS.KRB5_MECH;
private static final Logger log = LoggerFactory.getLogger(BogusGSSManager.class);
@Override
public Oid[] getMechs() {
return new Oid[] { KRB5_MECH };
}
@Override
public Oid[] getNamesForMech(Oid mech) throws GSSException {
return new Oid[] { GSSName.NT_EXPORT_NAME, GSSName.NT_HOSTBASED_SERVICE };
}
@Override
public Oid[] getMechsForName(Oid nameType) {
return new Oid[] { KRB5_MECH };
}
@Override
public GSSName createName(String nameStr, Oid nameType) throws GSSException {
return new BogusGSSName(nameStr, nameType);
}
@Override
public GSSName createName(byte[] name, Oid nameType) throws GSSException {
throw unavailable();
}
@Override
public GSSName createName(String nameStr, Oid nameType, Oid mech) throws GSSException {
return this.createName(nameStr, nameType);
}
@Override
public GSSName createName(byte[] name, Oid nameType, Oid mech) throws GSSException {
throw unavailable();
}
@Override
public GSSCredential createCredential(int usage) throws GSSException {
return new BogusGSSCredential(null, usage);
}
@Override
public GSSCredential createCredential(GSSName name, int lifetime, Oid mech, int usage) throws GSSException {
return new BogusGSSCredential(name, usage);
}
@Override
public GSSCredential createCredential(GSSName name, int lifetime, Oid[] mechs, int usage) throws GSSException {
return new BogusGSSCredential(name, usage);
}
@Override
public GSSContext createContext(GSSName peer, Oid mech, GSSCredential myCred, int lifetime) throws GSSException {
return new BogusGSSContext();
}
@Override
public GSSContext createContext(GSSCredential myCred) throws GSSException {
return new BogusGSSContext();
}
@Override
public GSSContext createContext(byte[] interProcessToken) throws GSSException {
throw unavailable();
}
@Override
public void addProviderAtFront(Provider p, Oid mech) throws GSSException {
throw unavailable();
}
@Override
public void addProviderAtEnd(Provider p, Oid mech) throws GSSException {
throw unavailable();
}
static GSSException unavailable() throws GSSException {
GSSException e = new GSSException(GSSException.UNAVAILABLE);
log.error(e.getMessage(), e);
throw e;
}
}