fuzz: add test for the gossipd message processing#9115
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NishantBansal2003 wants to merge 3 commits intoElementsProject:masterfrom
Open
fuzz: add test for the gossipd message processing#9115NishantBansal2003 wants to merge 3 commits intoElementsProject:masterfrom
NishantBansal2003 wants to merge 3 commits intoElementsProject:masterfrom
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Use tal_strcat() to derive the .tmp, .compact, and .corrupt paths from GOSSIP_STORE_FILENAME at runtime, instead of hardcoding the literals. No behaviour change in production. This is done for fuzz-gossipd: it lets the fuzz target override GOSSIP_STORE_FILENAME with a per-process path, so parallel libFuzzer workers don't race on the same files in CWD. Changelog-None Signed-off-by: Nishant Bansal <nishant.bansal.282003@gmail.com>
Changelog-None Co-authored-by: Chandra Pratap <Chand-ra@users.noreply.github.com> Signed-off-by: Nishant Bansal <nishant.bansal.282003@gmail.com>
Signed-off-by: Nishant Bansal <nishant.bansal.282003@gmail.com>
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Add state machine fuzz tests for gossipd message processing. Currently, all message states handled by gossipd are covered here, but other gossip messages like
gossip_timestamp_filter,query_short_channel_id, andquery_channel_rangeare handled by connectd, so those states need to be explicitly tested in separate fuzz tests.Most of the work here is based on #8423, so I've added the PR author as a co-author. I also rebased the changes and fixed the entropy issue afterward. Additionally, some new states have been added (e.g. UTXO lookup, update blockheight, seeker state machine), and a few existing states have been updated to support e2e message processing (e.g. UTXO lookup in channel announcements).
Also, in the ref PR there was a discussion about issues with multi worker fuzzing. I’ve addressed that in 26f7b52. I think with this we can run regression tests on some previously observed edge-cases
Checklist
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tools/lightning-downgrade