com.hierynomus.mssmb2.messages.SMB2CreateRequest Maven / Gradle / Ivy
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/*
* Copyright (C)2016 - SMBJ 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 com.hierynomus.mssmb2.messages;
import com.hierynomus.msdtyp.AccessMask;
import com.hierynomus.msfscc.FileAttributes;
import com.hierynomus.mssmb2.*;
import com.hierynomus.smb.SMBBuffer;
import com.hierynomus.smbj.common.SmbPath;
import java.util.Set;
import static com.hierynomus.protocol.commons.EnumWithValue.EnumUtils.ensureNotNull;
import static com.hierynomus.protocol.commons.EnumWithValue.EnumUtils.toLong;
/**
* [MS-SMB2].pdf 2.2.13 SMB2 CREATE Request
*
*/
public class SMB2CreateRequest extends SMB2Packet {
private final Set fileAttributes;
private final Set shareAccess;
private final SMB2CreateDisposition createDisposition;
private final Set createOptions;
private final SmbPath path;
private final Set accessMask;
private final SMB2ImpersonationLevel impersonationLevel;
@SuppressWarnings("PMD.ExcessiveParameterList")
public SMB2CreateRequest(SMB2Dialect smbDialect,
long sessionId, long treeId,
SMB2ImpersonationLevel impersonationLevel,
Set accessMask,
Set fileAttributes,
Set shareAccess, SMB2CreateDisposition createDisposition,
Set createOptions, SmbPath path) {
super(57, smbDialect, SMB2MessageCommandCode.SMB2_CREATE, sessionId, treeId);
this.impersonationLevel = ensureNotNull(impersonationLevel, SMB2ImpersonationLevel.Identification);
this.accessMask = accessMask;
this.fileAttributes = ensureNotNull(fileAttributes, FileAttributes.class);
this.shareAccess = ensureNotNull(shareAccess, SMB2ShareAccess.class);
this.createDisposition = ensureNotNull(createDisposition, SMB2CreateDisposition.FILE_SUPERSEDE);
this.createOptions = ensureNotNull(createOptions, SMB2CreateOptions.class);
this.path = path;
}
@Override
protected void writeTo(SMBBuffer buffer) {
buffer.putUInt16(structureSize); // StructureSize (2 bytes)
buffer.putByte((byte) 0); // SecurityFlags (1 byte) - Reserved
buffer.putByte((byte) 0); // RequestedOpLockLevel (1 byte) - None
buffer.putUInt32(impersonationLevel.getValue()); // ImpersonationLevel (4 bytes) - Identification
buffer.putReserved(8); // SmbCreateFlags (8 bytes)
buffer.putReserved(8); // Reserved (8 bytes)
buffer.putUInt32(toLong(accessMask)); // DesiredAccess (4 bytes)
buffer.putUInt32(toLong(fileAttributes)); // FileAttributes (4 bytes)
buffer.putUInt32(toLong(shareAccess)); // ShareAccess (4 bytes)
buffer.putUInt32(createDisposition.getValue()); // CreateDisposition (4 bytes)
buffer.putUInt32(toLong(createOptions)); // CreateOptions (4 bytes)
int offset = SMB2Header.STRUCTURE_SIZE + structureSize - 1; // The structureSize is including the minimum of 1 byte for the fileName
byte[] nameBytes;
String fileName = path.getPath();
if (fileName == null || fileName.trim().length() == 0) {
// If the path part of the SmbPath is `null`, this indicates the root of the share
buffer.putUInt16(offset); // NameOffset (4 bytes)
buffer.putUInt16(0); // NameLength (4 bytes)
// For empty names(root directory) Windows requires
// us to use a offset and in that offset have atleast a byte, since it affects alignment
// set the variable later.
nameBytes = new byte[1];
} else {
nameBytes = SMB2Functions.unicode(fileName);
buffer.putUInt16(offset); // NameOffset (4 bytes)
buffer.putUInt16(nameBytes.length); // NameLength (4 bytes)
}
// Create Contexts
buffer.putUInt32(0); // CreateContextsOffset (4 bytes)
buffer.putUInt32(0); // CreateContextsLength (4 bytes)
buffer.putRawBytes(nameBytes);
}
}