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/**
* Copyright 2016 EMC Corporation. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* or in the "license" file accompanying this file. This file 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 com.emc.ecs.nfsclient.nfs;
import com.emc.ecs.nfsclient.rpc.RpcException;
import com.emc.ecs.nfsclient.rpc.Xdr;
/**
* The response, as specified by RFC 1813 (https://tools.ietf.org/html/rfc1813).
*
*
* Procedure ACCESS determines the access rights that a user, as identified by
* the credentials in the request, has with respect to a file system object. The
* client encodes the set of permissions that are to be checked in a bit mask.
* The server checks the permissions encoded in the bit mask. A status of
* NFS3_OK is returned along with a bit mask encoded with the permissions that
* the client is allowed.
*
*
*
* The results of this procedure are necessarily advisory in nature. That is, a
* return status of NFS3_OK and the appropriate bit set in the bit mask does not
* imply that such access will be allowed to the file system object in the
* future, as access rights can be revoked by the server at any time.
*
*
* @author seibed
*/
public class NfsAccessResponse extends NfsResponseBase {
/**
* The access bits, as specified by RFC 1813
* (https://tools.ietf.org/html/rfc1813):
*
*
ACCESS3_READ = 0x0001 - Read data from file or read a directory.
ACCESS3_LOOKUP = 0x0002 - Look up a name in a directory (no meaning for non-directory objects).
ACCESS3_MODIFY = 0x0004 - Rewrite existing file data or modify existing directory entries.
ACCESS3_EXTEND = 0x0008 - Write new data or add directory entries.
ACCESS3_DELETE = 0x0010 - Delete an existing directory entry.
ACCESS3_EXECUTE = 0x0020 - Execute file (no meaning for a directory).
*
*
*/
private long _access;
/**
* Creates the response, as specified by RFC 1813
* (https://tools.ietf.org/html/rfc1813).
*
*
* Procedure ACCESS determines the access rights that a user, as identified
* by the credentials in the request, has with respect to a file system
* object. The client encodes the set of permissions that are to be checked
* in a bit mask. The server checks the permissions encoded in the bit mask.
* A status of NFS3_OK is returned along with a bit mask encoded with the
* permissions that the client is allowed.
*
*
*
* The results of this procedure are necessarily advisory in nature. That
* is, a return status of NFS3_OK and the appropriate bit set in the bit
* mask does not imply that such access will be allowed to the file system
* object in the future, as access rights can be revoked by the server at
* any time.
*
*
* @param nfsVersion
* The NFS version number. This is ignored for now, as only NFSv3
* is supported, but is included to allow future support for
* other versions.
*/
public NfsAccessResponse(int nfsVersion) {
super();
}
/*
* (non-Javadoc)
*
* @see com.emc.ecs.nfsclient.nfs.NfsResponseBase#unmarshalling(com.emc.ecs.
* nfsclient.rpc.Xdr)
*/
public void unmarshalling(Xdr xdr) throws RpcException {
super.unmarshalling(xdr);
unmarshallingAttributes(xdr);
if (stateIsOk()) {
_access = xdr.getUnsignedInt();
}
}
/**
* @return the access bits, as specified by RFC 1813
* (https://tools.ietf.org/html/rfc1813):
*
*
ACCESS3_READ = 0x0001 - Read data from file or read a directory.
ACCESS3_LOOKUP = 0x0002 - Look up a name in a directory (no meaning for non-directory objects).
ACCESS3_MODIFY = 0x0004 - Rewrite existing file data or modify existing directory entries.
ACCESS3_EXTEND = 0x0008 - Write new data or add directory entries.
ACCESS3_DELETE = 0x0010 - Delete an existing directory entry.
ACCESS3_EXECUTE = 0x0020 - Execute file (no meaning for a directory).
*
*
*/
public long getAccess() {
return _access;
}
}