SMBUtil.writeInt4(this.originalMessageSize, dst, dstIndex);
        dstIndex += 4;

        // Reserved (2 bytes)
        SMBUtil.writeInt2(0, dst, dstIndex);
        dstIndex += 2;

        // Flags (2 bytes)
        SMBUtil.writeInt2(this.flags, dst, dstIndex);
        dstIndex += 2;

        // Session ID (8 bytes)
        SMBUtil.writeInt8(this.sessionId, dst, dstIndex);

        SMBUtil.writeInt2(9, buffer, offset);
        SMBUtil.writeInt2(80 - 64, buffer, offset + 2);
        SMBUtil.writeInt4(12 + fileNameBytes.length, buffer, offset + 4);

        // Write notification
        int notifyOffset = 80;
        SMBUtil.writeInt4(0, buffer, notifyOffset);
        SMBUtil.writeInt4(1, buffer, notifyOffset + 4);
        SMBUtil.writeInt4(fileNameBytes.length, buffer, notifyOffset + 8);

        int ci = 0;
        SMBUtil.writeInt4(0, ctx, ci); // Next = 0
        ci += 4;
        SMBUtil.writeInt2(0x10, ctx, ci); // NameOffset
        SMBUtil.writeInt2(4, ctx, ci + 2); // NameLength
        ci += 4;
        SMBUtil.writeInt2(0, ctx, ci); // Reserved
        SMBUtil.writeInt2(0x20, ctx, ci + 2); // DataOffset
        ci += 4;
        SMBUtil.writeInt4(8, ctx, ci); // DataLength
        ci += 4;

        byte[] buffer = new byte[32];
        // Mock data for FsFullSizeInformation
        writeInt8(3000, buffer, 0); // total allocation units
        writeInt8(1500, buffer, 8); // caller available allocation units
        writeInt8(1500, buffer, 16); // actual free units (skipped)
        writeInt4(4, buffer, 24); // sectors per allocation unit
        writeInt4(8192, buffer, 28); // bytes per sector

        buffer[bufferIndex + 2] = 0x00;

        SMBUtil.writeInt4(totalParams, buffer, bufferIndex + 3);
        SMBUtil.writeInt4(totalData, buffer, bufferIndex + 7);
        SMBUtil.writeInt4(paramCount, buffer, bufferIndex + 11);
        SMBUtil.writeInt4(paramOffset, buffer, bufferIndex + 15);
        SMBUtil.writeInt4(paramDisp, buffer, bufferIndex + 19);
        SMBUtil.writeInt4(dataCount, buffer, bufferIndex + 23);

        namelen_index = dstIndex;
        dstIndex += 2;
        writeInt4(flags0, dst, dstIndex);
        dstIndex += 4;
        writeInt4(rootDirectoryFid, dst, dstIndex);
        dstIndex += 4;
        writeInt4(desiredAccess, dst, dstIndex);
        dstIndex += 4;
        writeInt8(allocationSize, dst, dstIndex);
        dstIndex += 8;
        writeInt4(extFileAttributes, dst, dstIndex);
        dstIndex += 4;

        // totalParameterCount = 10
        writeInt4(10, buffer, bufferIndex);
        bufferIndex += 4;
        // totalDataCount = 20
        writeInt4(20, buffer, bufferIndex);
        bufferIndex += 4;
        // parameterCount = 5
        writeInt4(5, buffer, bufferIndex);
        bufferIndex += 4;
        // parameterOffset = 30
        writeInt4(30, buffer, bufferIndex);
        bufferIndex += 4;

        // Entry 1
        writeInt4(120, buffer, bufferIndex); // nextEntryOffset = 120 (relative)
        writeInt4(1, buffer, bufferIndex + 4); // fileIndex = 1
        writeTime(1672531200000L, buffer, bufferIndex + 8); // creationTime
        writeTime(1672617600000L, buffer, bufferIndex + 24); // lastWriteTime
        writeInt8(2048, buffer, bufferIndex + 40); // endOfFile

        if (this.largeFile) {
            SMBUtil.writeInt2(this.pid, dst, dstIndex);
            SMBUtil.writeInt4(this.byteOffset >> 32, dst, dstIndex + 4);
            SMBUtil.writeInt4(this.byteOffset & 0xFFFFFFFF, dst, dstIndex + 8);
            SMBUtil.writeInt4(this.lengthInBytes >> 32, dst, dstIndex + 12);
            SMBUtil.writeInt4(this.lengthInBytes & 0xFFFFFFFF, dst, dstIndex + 16);
            return 20;

            byte[] buffer = new byte[60];
            SMBUtil.writeInt2(60, buffer, 0);
            SMBUtil.writeInt2(0xFFFF, buffer, 2); // Max flags
            SMBUtil.writeInt4(0xFFFFFFFF, buffer, 4); // Max reserved (ignored)
            SMBUtil.writeInt8(Long.MAX_VALUE, buffer, 8); // Max times
            SMBUtil.writeInt8(Long.MAX_VALUE, buffer, 16);
            SMBUtil.writeInt8(Long.MAX_VALUE, buffer, 24);