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DoS protection on the collator protocol (#3446)

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* Move on to next validator after timeout.

* Better naming.

* Wrong implementation of validator fetch timeouts.

* Validator side: Move on to next collator

if download takes too long.

* Drop multiple requests from same validator.

* Add test that next response is sent after timeout.

* Multiple requests by same validator should get dropped.

* Test that another collator is tried

after exclusive download time.

* Add dep.

* Cleanup.

* Merge fix.

* Review remarks.

* Fixes.

* Add log targets to trace logs

Co-authored-by: Andronik Ordian <write@reusable.software>
This commit is contained in:
Robert Klotzner
2021-07-12 13:01:17 +02:00
committed by GitHub
parent e512222749
commit 6994682a86
6 changed files with 352 additions and 148 deletions
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polkadot/node/network/collator-protocol/Cargo.toml
+1
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@@ -28,5 +28,6 @@ assert_matches = "1.4.0"
sp-core = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["std"] }
sp-keyring = { git = "https://github.com/paritytech/substrate", branch = "master" }
sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }
polkadot-subsystem-testhelpers = { package = "polkadot-node-subsystem-test-helpers", path = "../../subsystem-test-helpers" }