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Issue #110 - Probe Request Information Element Order change #116

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sandeepkumarnv
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Please review these initial version of changes. Since I have to iterate inside the header elements constructor I am forced to take out the "final" declarations on information elements. I didn't want to do that though. Please take a look at this and let me know your thoughts on it. Also I have not worked on factory implementation yet. I will be working on that soon. Thanks

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Coverage Status

Coverage increased (+0.09%) to 70.393% when pulling 584d14e on sandeepkumarnv:v1 into db6a43f on kaitoy:v1.

@kaitoy
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kaitoy commented Jul 18, 2017

Thank you for your PR. I will take a look at it.

@sandeepkumarnv
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Please let me know your feedback on this when you get a chance to review. Thanks

@lennartkoopmann
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I'm also very interested in this and would love to help if necessary.

@kaitoy
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kaitoy commented Aug 6, 2017

Sorry for my late response. Currently I don't have enough time for Pcap4J...
Actually, this PR has some problems. I will explain them tomorrow.

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In addition to comments in line, getRawFields, buildString, calcHashCode, and equals must be modified with consideration of element order.

private final Dot11InterworkingElement interworking;
private final Dot11MeshIdElement meshId;
private final List<Dot11VendorSpecificElement> vendorSpecificElements;
private Dot11SsidElement ssid = null;
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All fields should be final as possible.

private Dot11MeshIdElement meshId = null;
private List<Dot11VendorSpecificElement> vendorSpecificElements = new ArrayList<Dot11VendorSpecificElement>();

private List<Dot11InformationElement> infoElementOrderedList = new LinkedList<Dot11InformationElement>();
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infoElementOrderedList holds the same objects as the other fields such as meshId, which is a bad practice.

int elemLen = elem.length();
offset += elemLen;
length -= elemLen;
short iterCount = 0;
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I want the below code to be replaced with a packet factory like StaticIpV4OptionFactory for maintainability and enhanceability.

* @return infoElementOrderedList
*/
public List<Dot11InformationElement> getInformationElementOrderedList() {
return infoElementOrderedList;
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All fields must be immutable. So, here must make a defensive copy.

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4 participants