/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.sshd.server.pam;
import net.sf.jpam.Pam;
import net.sf.jpam.PamReturnValue;
import org.apache.sshd.server.PasswordAuthenticator;
import org.apache.sshd.server.session.ServerSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A password authenticator using PAM (Pluggable Authentication Module).
* Such an authenticator can be used to integrate into an Unix operating
* system.
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class PAMPasswordAuthenticator implements PasswordAuthenticator {
private static final Logger LOG = LoggerFactory.getLogger(PAMPasswordAuthenticator.class);
private String service = "sshd";
public String getService() {
return service;
}
public void setService(String service) {
this.service = service;
}
public boolean authenticate(String username, String password, ServerSession session) {
LOG.info("Authenticating user {} using PAM", username);
PamReturnValue val = new Pam(service).authenticate(username, password);
LOG.info("Result: {}", val);
if (PamReturnValue.PAM_SUCCESS.equals(val)) {
return true;
}
return false;
}
}