BuildMsgIdFn builds a generic message ID function for gossipsub that can handle compressed payloads, mirroring the eth2 p2p gossip spec.

BuildSubscriptionFilter builds a simple subscription filter, to help protect against peers spamming useless subscriptions.

ConfigurePeerScoring configures the peer scoring parameters for the pubsub.

LightPeerScoreParams is an instantiation of [pubsub.PeerScoreParams] with light penalties.

NewGossipSub configures a new pubsub instance with the specified parameters.

NewNodeP2P creates a new p2p node, and returns a reference to it.

NewPeerScoreThresholds returns a default [pubsub.PeerScoreThresholds].

NewScorer returns a new peer scorer.

ScoreDecay returns the decay factor for a given duration.

DecayEpoch is the number of epochs to decay the score over.

DecayToZero is the decay factor for a peer's score to zero.

topic stable mesh target count.

topic stable mesh high watermark.

gossip target.

topic stable mesh low watermark.

MaxInMeshScore is the maximum score for being in the mesh.

MeshWeight is the weight of the mesh delivery topic.

Config sets up a p2p host and discv5 service from configuration.

LocalSigner is suitable for testing.

NodeP2P is a p2p node, which can be used to gossip messages.

The discovery ENRs are just key-value lists, and we filter them by records tagged with the "opstack" key, and then check the chain ID and version.

Prepared provides a p2p host and discv5 service that is already set up.

ScoringParams defines the various types of peer scoring parameters.

SyncClient implements a reverse chain sync with a minimal interface: signal the desired range, and receive blocks within this range back.

go:generate mockery --name GossipMetricer.

Peerstore is a subset of the libp2p peerstore.Peerstore interface.

go:generate mockery --name ScoreMetrics --output mocks/.

Scorer is a peer scorer that scores peers based on application-specific metrics.

SetupP2P provides a host and discovery service for usage in the rollup node.

Secp256k1 is like the geth Secp256k1 enr entry type, but using the libp2p pubkey representation instead.

StreamCtxFn provides a new context to use when handling stream requests.