Implement gossipsub IDONTWANT (sigp#5422)

* move gossipsub into a separate crate

* Merge branch 'unstable' of github.com:sigp/lighthouse into separate-gossipsub

* update rpc.proto and generate rust bindings

* gossipsub: implement IDONTWANT messages

* address review

* move GossipPromises out of PeerScore

* impl PeerKind::is_gossipsub

that returns true if peer speaks any version of gossipsub

* address review 2

* Merge branch 'separate-gossipsub' of github.com:sigp/lighthouse into impl-gossipsub-idontwant

* Merge branch 'unstable' of github.com:sigp/lighthouse into impl-gossipsub-idontwant

* add metrics

* add tests

* make 1.2 beta before spec is merged

* Merge branch 'unstable' of github.com:sigp/lighthouse into impl-gossipsub-idontwant

* cargo clippy

* Collect decoded IDONTWANT messages

* Use the beta tag in most places to simplify the transition

* Fix failed test by using fresh message-ids

* Gossipsub v1.2-beta

* Merge latest unstable

* Cargo update

* Merge pull request #5 from ackintosh/impl-gossipsub-idontwant-ackintosh-fix-test

Fix `test_ignore_too_many_messages_in_ihave` test

* Merge branch 'unstable' of github.com:sigp/lighthouse into impl-gossipsub-idontwant

* update CHANGELOG.md

* remove beta for 1.2 IDONTWANT spec has been merged

* Merge branch 'unstable' of github.com:sigp/lighthouse into impl-gossipsub-idontwant

* Merge branch 'impl-gossipsub-idontwant' of github.com:jxs/lighthouse into impl-gossipsub-idontwant

* Merge branch 'unstable' of github.com:sigp/lighthouse into impl-gossipsub-idontwant

* improve comments wording

* Merge branch 'impl-gossipsub-idontwant' of github.com:jxs/lighthouse into impl-gossipsub-idontwant

Cargo.toml

@@ -126,6 +126,7 @@ fnv = "1"
 fs2 = "0.4"
 futures = "0.3"
 hex = "0.4"
+hashlink = "0.9.0"
 hyper = "1"
 itertools = "0.10"
 lazy_static = "1"

beacon_node/lighthouse_network/gossipsub/CHANGELOG.md

@@ -1,5 +1,8 @@
 ## 0.5 Sigma Prime fork
 
+- Implement IDONTWANT messages as per [spec](https://github.com/libp2p/specs/pull/548).
+  See [PR 5422](https://github.com/sigp/lighthouse/pull/5422)
+
 - Attempt to publish to at least mesh_n peers when publishing a message when flood publish is disabled.
   See [PR 5357](https://github.com/sigp/lighthouse/pull/5357).
 - Drop `Publish` and `Forward` gossipsub stale messages when polling ConnectionHandler.

beacon_node/lighthouse_network/gossipsub/Cargo.toml

@@ -24,6 +24,7 @@ futures = "0.3.30"
 futures-ticker = "0.0.3"
 futures-timer = "3.0.2"
 getrandom = "0.2.12"
+hashlink.workspace = true
 hex_fmt = "0.3.0"
 libp2p = { version = "0.53", default-features = false }
 quick-protobuf = "0.8"