Wireshark-bugs: [Wireshark-bugs] [Bug 6020] Lua pinfo.cols.protocol not holding value in postdis
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 19 Feb 2013 04:35:25 +0000

changed bug 6020

What Removed Added
Attachment #10047 Flags   review_for_checkin?

Comment # 18 on bug 6020 from 
Created attachment 10047 [details]
Patch to make Lua fields populated

This patch makes Lua field extractors usable in post-dissectors, by creating a
dfilter for the fields, and priming the proto_tree with it in
epan_dissect_run().  This is similar to the color/display/taps dfilter model,
except this Lua one is *always* primed, unless there's no proto_tree to begin
with (which there sometimes isn't).

The rationale for this is: unlike color/display/tap dfilters, which are only
used at certain times based on when C-code needs them, we don't know when a Lua
plugin needs a field to be populated.  This patch still does not prime the
dfilter if there is no proto_tree, as that seems safer to avoid for now.

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