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Bug: 10695
Change-Id: I81181b2d00fcb5f0c25ab89bbe4968897f47a3a6
Reviewed-on: https://code.wireshark.org/review/6131
Petri-Dish: Hadriel Kaplan <hadrielk@yahoo.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
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Because call_heur_dissector_direct() didn't set the pinfo->heur_list_name
before calling the heuristic dissector, heur_dissect_lua() would invoke
report_failure(). Unfortunately, calling report_failure() within a dissector
can cause problems because GTK continues invoking timed callbacks while
it displays the modal dialog created by report_failure()... without yet
returning from report_failure(). In such a case, it's possible for
epan_dissect_run() to be called while still within the execution of a
previous call to epan_dissect_run(), which casues an assert since
epan_dissect_run() is not reentrant.
So this commit both fixes the call_heur_dissector_direct() bug as well
as avoids using report_failure() within heur_dissect_lua(). It also
upadtes the dissector.lua script used in the testsuite to match the one
pubshied on the wiki, since that script's heuristic dissector triggered
the bug.
Bug: 10233
Change-Id: If022604347745fadac01c02d370ca1a5d3f88b5b
Reviewed-on: https://code.wireshark.org/review/6040
Reviewed-by: Michael Mann <mmann78@netscape.net>
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Hadriel Kaplan <hadrielk@yahoo.com>
Tested-by: Hadriel Kaplan <hadrielk@yahoo.com>
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This adds the ability for a Lua script to register expert info fields,
similar to C-code dissectors. This change also removes the need for
the expert_add_info_format_internal() function. Existing Lua scripts
do not have to change, because the existing expert info function
uses the internal "_ws.lua" protocol instead of nothing; but using
the new functionality provides more benefits since it correctly
registers the expert info fields to the dissector's protocol.
The test suite was amended to generate both old and new forms.
Change-Id: Ib5ae74e927cfa81312baf7b04ff4104b0b4f936e
Reviewed-on: https://code.wireshark.org/review/830
Reviewed-by: Evan Huus <eapache@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Change-Id: I8671eb3d3b46ec5c723a6545451ecbb33a10c807
Reviewed-on: https://code.wireshark.org/review/788
Reviewed-by: Hadriel Kaplan <hadrielk@yahoo.com>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
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This adds the ability for Lua scripts to register heuristic dissectors
for any protocol that has registered a heuristic dissector list, such
as UDP, TCP, and ~50 others. The Lua function can also establish a
conversation tied to its Proto dissector, to avoid having to check the
heuristics for the same flow. The example dissector in the testsuite
has also been enhanced to include a heuristic dissector, to verify
the functionality and provide an example implementation.
Change-Id: Ie232602779f43d3418fe8db09c61d5fc0b59597a
Reviewed-on: https://code.wireshark.org/review/576
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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troubleshooting Lua scripts
There are some common things people need to do, such as convert to/from hex or get
the raw binary string in a ByteArray/Tvb/TvbRange. These have been added, as well
as some tests for them in the testsuites. Also, functions have been added to allow
a script to get all the available tap types and filter fields, since they are
not exactly what one can see in the Wireshark gui.
Change-Id: I92e5e4eae713bb90d79b0c024eaa4e55b99cc96b
Reviewed-on: https://code.wireshark.org/review/249
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
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This isn't super-fancy, but it runs a simple protocol dissector and verifies the tshark output
matches what it expects. Things like Proto, ProtoField, Field, Tvb, TvbRange, etc., are used
in an example dissector script - it dissects DNS... partially. Enough to make sure things
aren't fundamentally broken. This provides something to add on top of later as well.
Change-Id: Icf3c8e9534944bcf4c4f6150f02a9a43f999cd75
Reviewed-on: https://code.wireshark.org/review/126
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
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