com.hierynomus.mssmb2.SMB2PacketData Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of smbj Show documentation

SMB2 protocol library for communication with Windows servers

There is a newer version: 0.13.0

/*
 * 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;

import com.hierynomus.mserref.NtStatus;
import com.hierynomus.protocol.commons.buffer.Buffer;
import com.hierynomus.smb.SMBPacketData;

import static com.hierynomus.protocol.commons.EnumWithValue.EnumUtils.isSet;

/**
 * Represents the partially deserialized SMB2Packet contents.
 * 
 * The SMB2 Header is always present and has a fixed layout. The packet data itself varies based on the {@link SMB2MessageCommandCode} in the header,
 * together with the {@link com.hierynomus.mserref.NtStatus}.
 */
public class SMB2PacketData extends SMBPacketData {

    public SMB2PacketData(byte[] data) throws Buffer.BufferException {
        super(new SMB2Header(), data);
    }

    public long getSequenceNumber() {
        return getHeader().getMessageId();
    }

    /**
     * Check whether this packetData has an  {@link NtStatus#isSuccess() success} status
     * @return
     */
    protected boolean isSuccess() {
        long statusCode = getHeader().getStatusCode();
        return NtStatus.isSuccess(statusCode) && statusCode != NtStatus.STATUS_PENDING.getValue();
    }

    /**
     * Check whether this packet is an intermediate ASYNC response
     */
    public boolean isIntermediateAsyncResponse() {
        return isSet(getHeader().getFlags(), SMB2MessageFlag.SMB2_FLAGS_ASYNC_COMMAND) && getHeader().getStatusCode() == NtStatus.STATUS_PENDING.getValue();
    }
}