if (this.largeFile) {
            this.pid = SMBUtil.readInt2(buffer, bufferIndex);
            final int boHigh = SMBUtil.readInt4(buffer, bufferIndex + 4);
            final int boLow = SMBUtil.readInt4(buffer, bufferIndex + 8);

            this.byteOffset = boHigh << 32 | boLow;

            final int lHigh = SMBUtil.readInt4(buffer, bufferIndex + 12);
            final int lLow = SMBUtil.readInt4(buffer, bufferIndex + 16);

        // Write structure header
        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);

        int start = dstIndex;

        // Compression count (2 bytes)
        SMBUtil.writeInt2(this.compressionAlgorithms.length, dst, dstIndex);
        dstIndex += 2;

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

        // Flags (4 bytes)
        SMBUtil.writeInt4(this.flags, dst, dstIndex);
        dstIndex += 4;

        assertEquals(32, SMBUtil.readInt2(buffer, 0)); // StructureSize
        assertEquals(0x0001, SMBUtil.readInt2(buffer, 2)); // Flags
        assertEquals(8192, SMBUtil.readInt4(buffer, 4)); // OutputBufferLength
        // FileId at offset 8-23
        assertEquals(0x00000FFF, SMBUtil.readInt4(buffer, 24)); // CompletionFilter
        assertEquals(0, SMBUtil.readInt4(buffer, 28)); // Reserved
    }

            assertEquals(512, SMBUtil.readInt4(buffer, 32)); // Minimum count
            assertEquals(Smb2ReadRequest.SMB2_CHANNEL_NONE, SMBUtil.readInt4(buffer, 36)); // Channel
            assertEquals(1024, SMBUtil.readInt4(buffer, 40)); // Remaining bytes

            // ReadChannelInfo
            assertEquals(0, SMBUtil.readInt2(buffer, 44)); // ReadChannelInfoOffset

        // Set SMB 3.1.1 dialect and 1 context
        SMBUtil.writeInt2(0x0311, buffer, 4);
        SMBUtil.writeInt2(1, buffer, 6);
        SMBUtil.writeInt4(128, buffer, 60); // Context offset

        // At offset 128 + 64 (header start), set context with excessive data length
        int contextPos = 192;
        SMBUtil.writeInt2(1, buffer, contextPos); // Context type

        assertEquals(expectedIndexNumber, SMBUtil.readInt8(destinationBuffer, 0));
    }

    @Test
    @DisplayName("Test encode with buffer offset")
    void testEncodeWithBufferOffset() throws SMBProtocolDecodingException {
        // First decode to set internal state
        byte[] sourceBuffer = new byte[8];
        long expectedIndexNumber = 0xAABBCCDDEEFF1122L;
        SMBUtil.writeInt8(expectedIndexNumber, sourceBuffer, 0);

        // Version (2 bytes)
        SMBUtil.writeInt2(3, buffer, 8);

        // Size (2 bytes) - the size of this referral entry
        SMBUtil.writeInt2(20, buffer, 10);

        // Server type (2 bytes)
        SMBUtil.writeInt2(1, buffer, 12);

        // Referral flags (2 bytes)
        SMBUtil.writeInt2(0, buffer, 14);

        // Proximity (2 bytes for v3)
        SMBUtil.writeInt2(0, buffer, 16);

        final int start = dstIndex;

        SMBUtil.writeInt2(this.tflags, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.desiredAccess, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.searchAttributes, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.fileAttributes, dst, dstIndex);
        dstIndex += 2;

        this.dataOffset += this.pad;

        SMBUtil.writeInt2(this.fid, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt4(this.offset, dst, dstIndex);
        dstIndex += 4;
        for (int i = 0; i < 4; i++) {
            dst[dstIndex++] = (byte) 0xFF;
        }
        SMBUtil.writeInt2(this.writeMode, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.remaining, dst, dstIndex);