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Use HEX, DEC, HEX_DEC..., depending on item size and byte alignment.
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Asterix data format is a complex family of asterix categories,
where each individual category exists in multiple editions.
As a result of many variants, the epan/dissectors/packet-asterix.c
is one of the largest dissectors.
So far, the asterix dissector had been maintained manually, where the
generic decoding routines and category/edition specific definitions
were entangled in the same file (packet-asterix.c).
This commit preserves the overall dissector structure, but makes
it easy to update the dissector with new categories or editions as
they become available (via the update script from this commit).
See tools/asterix/README.md file for dissector update procedure.
This commit includes:
- tools/asterix/packet-asterix-template.c
Extraction of generic asterix decoding routines and
common data structures.
- tools/asterix/update-specs.py
Update script, to render the template with up-to-date asterix
specs files. The asterix specs files themselves are maintained in
a separate repository.
- epan/dissectors/packet-asterix.c
Automatically generated dissector for asterix data format.
Although generated, this file needs to remain in the repository,
to be able to build the project in a reproducible way.
The generated asterix dissector was additionally tested with:
- ./tools/check_typed_item_calls.py --mask
- ./tools/fuzz-test.sh
Sync with asterix-specs #cef694825c
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Closes #17276
Update test scripts and datafiles for corrected output format.
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PEP 394[1] says,
"In cases where the script is expected to be executed outside virtual
environments, developers will need to be aware of the following
discrepancies across platforms and installation methods:
* Older Linux distributions will provide a python command that refers
to Python 2, and will likely not provide a python2 command.
* Some newer Linux distributions will provide a python command that
refers to Python 3.
* Some Linux distributions will not provide a python command at all by
default, but will provide a python3 command by default."
Debian has forced the issue by choosing the third option[2]:
"NOTE: Debian testing (bullseye) has removed the "python" package and
the '/usr/bin/python' symlink due to the deprecation of Python 2."
Switch our shebang from "#!/usr/bin/env python" to "#!/usr/bin/env
python3" in some places. Remove some 2/3 version checks if we know we're
running under Python 3. Remove the "coding: utf-8" in a bunch of places
since that's the default in Python 3.
[1]https://www.python.org/dev/peps/pep-0394/#for-python-script-publishers
[2]https://wiki.debian.org/Python
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Change-Id: I0138681650dcabb01e08f3d25817b5fdd30f45e8
Reviewed-on: https://code.wireshark.org/review/31380
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
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Change-Id: I7a063fdbc08a79c0358857d1e38ded41ae122b23
Reviewed-on: https://code.wireshark.org/review/31399
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Fail early if these commands fail.
Change-Id: I6ba6cfa4b0b68c7282b79204b4f2bfedfefa4326
Reviewed-on: https://code.wireshark.org/review/31352
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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Change-Id: I88a97168f318c4d900dadf8443e4068c60ba342f
Reviewed-on: https://code.wireshark.org/review/31212
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
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This patch extends the test suite with:
* a way for tests to check if a given byte sequence dissects into an expected dissection result.
Unit tests included:
* ASTERIX I019
* ASTERIX I063
* ASTERIX I065
Change-Id: Ib168382ec15b0b610ff5913806120ba1bf1d1503
Reviewed-on: https://code.wireshark.org/review/31083
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
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