Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 12138] Wireshark needs support for Van Jacobson PPP compression

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Guy Harris changed bug 12138

What	Removed	Added
Status	UNCONFIRMED	CONFIRMED
Hardware	x86-64	All
Version	2.0.1	1.12.0
Summary	Latest Wireshark can't parse VJ compressed frame properly	Wireshark needs support for Van Jacobson PPP compression
Ever confirmed		1
OS	Windows 8	All
Severity	Major	Enhancement

Comment # 1 on bug 12138 from Guy Harris

The Van Jacobson decompressor was removed in Wireshark 1.12 because there were
questions as to whether the license for the code allowed us to use the code. 
See, for example, this message:

    https://www.wireshark.org/lists/wireshark-dev/201309/msg00182.html

and the thread it's in, and the thread beginning at

    https://www.wireshark.org/lists/wireshark-dev/201310/msg00027.html

and including

    https://www.wireshark.org/lists/wireshark-dev/201310/msg00028.html

If somebody can provide either

    1) evidence to indicate that the licensing of that code permits us to use
it in Wireshark

or

    2) a re-implementation of the Van Jacobson decompression code that's *not*
covered by the 4-clause BSD license or any other copyright/license clauses that
might be troublesome (such as the "All Rights Reserved" clause in the original
file's copyright)

then we could add Van Jacobson decompression support back to Wireshark.

So I'm reclassifying this as an enhancement request, asking for VJC support.

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