// Read total allocation units.
        this.alloc = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

        // read caller available allocation units
        this.free = SMBUtil.readInt8(buffer, bufferIndex);
        bufferIndex += 8;

        // skip actual free units
        bufferIndex += 8;

        this.sectPerAlloc = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        final int nunlocks = SMBUtil.readInt2(buffer, bufferIndex);
        this.unlocks = new LockingAndXRange[nunlocks];
        bufferIndex += 2;

        final int nlocks = SMBUtil.readInt2(buffer, bufferIndex);
        this.locks = new LockingAndXRange[nlocks];
        bufferIndex += 2;
        return start - bufferIndex;
    }

    /**
     * {@inheritDoc}
     *

        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (structureSize != 9) {
            throw new SMBProtocolDecodingException("Expected structureSize = 9");
        }

        final int bufferOffset = SMBUtil.readInt2(buffer, bufferIndex + 2) + getHeaderStart();
        bufferIndex += 4;
        final int len = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        final int start = bufferIndex;
        setStatus(SMBUtil.readInt2(buffer, bufferIndex));
        bufferIndex += 2;
        this.converter = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        setNumEntries(SMBUtil.readInt2(buffer, bufferIndex));
        bufferIndex += 2;
        this.totalAvailableEntries = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;

            assertEquals(0, SMBUtil.readInt2(buffer, 72));

            // Verify input buffer length (should be 0 when no input buffer)
            assertEquals(0, SMBUtil.readInt4(buffer, 76));

            // Verify additional information
            assertEquals(0x12345678, SMBUtil.readInt4(buffer, 80));

            // Verify query flags
            assertEquals(0xABCDEF00, SMBUtil.readInt4(buffer, 84));

        // Verify
        assertEquals(14 + nameBytes.length, bytesEncoded);

        // Check timeout (should be 0)
        assertEquals(0L, SMBUtil.readInt8(buffer, 0));

        // Check name length
        assertEquals(nameBytes.length, SMBUtil.readInt4(buffer, 8));

        // Check timeout specified flag (should be 0)
        assertEquals(0x0, buffer[12]);

        // Check padding

        this.resultCode = src[srcIndex + OPCODE_OFFSET + 1] & 0x0F;
        this.questionCount = readInt2(src, srcIndex + QUESTION_OFFSET);
        this.answerCount = readInt2(src, srcIndex + ANSWER_OFFSET);
        this.authorityCount = readInt2(src, srcIndex + AUTHORITY_OFFSET);
        this.additionalCount = readInt2(src, srcIndex + ADDITIONAL_OFFSET);
        return HEADER_LENGTH;
    }

        resultCode = src[srcIndex + OPCODE_OFFSET + 1] & 0x0F;
        questionCount = readInt2(src, srcIndex + QUESTION_OFFSET);
        answerCount = readInt2(src, srcIndex + ANSWER_OFFSET);
        authorityCount = readInt2(src, srcIndex + AUTHORITY_OFFSET);
        additionalCount = readInt2(src, srcIndex + ADDITIONAL_OFFSET);
        return HEADER_LENGTH;
    }

        this.leaseKey = new Smb2LeaseKey(keyBytes);
        bufferIndex += 16;

        this.leaseState = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        this.leaseFlags = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // LeaseDuration (8 bytes) - reserved, skip
        bufferIndex += 8;

        ServerMessageBlock.writeInt2(0x1234, buffer, 0);
        assertEquals(0x1234, ServerMessageBlock.readInt2(buffer, 0));
    }

    @Test
    void testInt4ReadWrite() {
        byte[] buffer = new byte[4];
        ServerMessageBlock.writeInt4(0x12345678, buffer, 0);
        assertEquals(0x12345678, ServerMessageBlock.readInt4(buffer, 0));
    }

    @Test
    void testInt8ReadWrite() {
        byte[] buffer = new byte[8];