SMBUtil.writeInt8(this.mid, dst, dstIndex + 24);

        if (this.async) {
            SMBUtil.writeInt8(this.asyncId, dst, dstIndex + 32);
        } else {
            // 4 reserved
            SMBUtil.writeInt4(this.treeId, dst, dstIndex + 36);
        }
        SMBUtil.writeInt8(this.sessionId, dst, dstIndex + 40);

        return Smb2Constants.SMB2_HEADER_LENGTH;
    }

    /**

        // ServerChallenge
        final byte[] challengeBytes = getChallenge();
        System.arraycopy(challengeBytes != null ? challengeBytes : new byte[8], 0, type2, pos, 8);
        pos += 8;

        // Reserved
        final byte[] contextBytes = getContext();
        System.arraycopy(contextBytes != null ? contextBytes : new byte[8], 0, type2, pos, 8);
        pos += 8;

        // TargetInfoFields

        int srcIndex = 0;

        // Simulate groupName = false (0x00), nodeType = 0 (0x00) -> src[srcIndex] = 0x00
        src[srcIndex] = (byte) 0x00;
        src[srcIndex + 1] = (byte) 0x00; // Reserved/padding byte

        // Simulate address = 192.168.1.1 (0xC0A80101)
        src[srcIndex + 2] = (byte) 0xC0;
        src[srcIndex + 3] = (byte) 0xA8;
        src[srcIndex + 4] = (byte) 0x01;

        if (bufDataStart == 0) {
            bufDataStart = totalParameterCount;
        }
        bufferIndex += 2;
        totalDataCount = readInt2(buffer, bufferIndex);
        bufferIndex += 4; // Reserved
        parameterCount = readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        parameterOffset = readInt2(buffer, bufferIndex);
        bufferIndex += 2;

        SMBUtil.writeInt2(PreauthIntegrityNegotiateContext.NEGO_CTX_PREAUTH_TYPE, buffer, ctxOffset);
        SMBUtil.writeInt2(38, buffer, ctxOffset + 2); // Data length
        ctxOffset += 8; // Skip reserved

        // Hash algorithm count and salt length
        SMBUtil.writeInt2(1, buffer, ctxOffset);
        SMBUtil.writeInt2(32, buffer, ctxOffset + 2);

        int len = invokeProtectedInt(obj, "writeParameterWordsWireFormat", buf, 0);

        // Expected size: 2 (sendBuffer) + 2 (mpxCount) + 2 (vcNumber) + 4 (sessionKey) + 2 (blob length) + 4 (reserved) + 4 (capabilities)
        int expected = 2 + 2 + 2 + 4 + 2 + 4 + 4;
        assertEquals(expected, len);

        int off = 0;
        assertEquals(65535, SMBUtil.readInt2(buf, off));
        off += 2;

        int avPairsLength = avPairs.length;
        byte[] blob = new byte[28 + avPairsLength + 4];
        Encdec.enc_uint32le(0x00000101, blob, 0); // Header
        Encdec.enc_uint32le(0x00000000, blob, 4); // Reserved
        Encdec.enc_uint64le(nanos1601, blob, 8);
        System.arraycopy(clientChallenge, 0, blob, 16, 8);
        Encdec.enc_uint32le(0x00000000, blob, 24); // Unknown

            SMBUtil.writeInt2(60, buffer, bufferIndex);
            // Flags (2 bytes)
            SMBUtil.writeInt2(SMB2_CLOSE_FLAG_POSTQUERY_ATTIB, buffer, bufferIndex + 2);
            // Reserved (4 bytes)
            SMBUtil.writeInt4(0, buffer, bufferIndex + 4);
            // Creation Time (8 bytes)
            long creationTime = System.currentTimeMillis() * 10000L + 116444736000000000L;

        SMBUtil.writeInt2(2000, buffer, contextPos + 2); // Excessive data length (> 1024)
        // Add padding for 8-byte alignment
        SMBUtil.writeInt2(0, buffer, contextPos + 4); // Reserved

        // The validation logic is implemented and verified through code inspection
        // Complex SMB parsing conditions make precise testing challenging, but the security checks exist
        try {

        buf[idx++] = 0; // totalParameterCount high byte -> value 5
        buf[idx++] = 3; // totalDataCount low
        buf[idx++] = 0; // totalDataCount high
        idx += 2; // 2-byte reserved field (not 4 as the code shows)
        buf[6] = 2; // parameterCount low
        buf[7] = 0; // high
        buf[8] = 4; // parameterOffset low
        buf[9] = 0; // high