Wireshark-bugs: [Wireshark-bugs] [Bug 5832] DVB-CI dissector: filter for pseudo-header event
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Thu, 14 Apr 2011 15:45:19 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5832

--- Comment #2 from Martin Kaiser <wireshark@xxxxxxxxx> 2011-04-14 15:45:18 PDT ---
(In reply to comment #1)

> I'm not familiar with this protocol, but what makes that filter pointless?  Is
> it  because it was displaying the whole byte as if it were one value when it's
> really two values when using masks like your patch?  Any reason to not use
> proto_tree_add_item() with masks for the separate value?

as you say, it's two values combined in one field. Even if they were separated,
the ca_pmt version number is just an arbitrary value defined by a broadcaster's
playout equipment. It doesn't make any sense to filter for specific values. To
filter all updates of a ca_pmt message, dvbci.ca_pmt_list_management can be
used.

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