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bd5d24822a
Currently disabled but may be enabled later. Updates the existing fuzzing to use shared libraries as that's easier for meson to deal with if there is a mix of static and shared libraries on the system. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2123>
87 lines
2.2 KiB
Plaintext
87 lines
2.2 KiB
Plaintext
Fuzzing GStreamer
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=================
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This directory contains the various fuzzing targets and helper
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scripts.
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* Fuzzing targets
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Fuzzing targets as small applications where we can test a specific
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element or API. The goal is to have them be as small/targetted as
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possible.
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ex: appsrc ! <some_element> ! fakesink num-buffers=<small>
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Not all components can be tested directly and therefore will be
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indirectly tested via other targets (ex: libgstaudio will be tested
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by targets/elements requiring it)
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Anything that can process externally-provided data should be
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covered, but there are cases where it might not make sense to use a
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fuzzer (such as most elements processing raw audio/video).
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* build-oss-fuzz.sh
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This is the script executed by the oss-fuzz project.
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It builds glib, GStreamer, plugins and the fuzzing targets.
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* *.c
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The fuzzing targets where the data to test will be provided to a
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function whose signature follows the LibFuzzer signature:
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https://llvm.org/docs/LibFuzzer.html
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* *.corpus
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A file matching a test name that contains a list of files to use when
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starting a fuzzing run. Providing an initial set files can speed up
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the fuzzing process significantly.
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* TODO
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* Add a standalone build script
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We need to be able to build and test the fuzzing targets outside
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of the oss-fuzz infrastructure, and do that in our continous
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integration system.
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We need:
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* A dummy fuzzing engine (given a directory, it opens all files and
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calls the fuzzing targets with the content of those files.
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* A script to be able to build those targets with that dummy engine
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* A corpus of files to test those targets with.
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* Build targets with dummy engine and run with existing tests.
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* Create pull-based variants
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Currently the existing targets are push-based only. Where
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applicable we should make pull-based variants to test the other
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code paths.
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* Add more targets
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core:
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gst_parse fuzzer ?
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base:
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ext/
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ogg
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opus
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pango
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theora
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vorbis
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gst/
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subparse
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typefind : already covered in typefind target
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gst-libs/gst/
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sdp
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other ones easily testable directly ?
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