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Subscribe to altair gossip topics 2 slots before fork (#2532)

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## Issue Addressed

N/A

## Proposed Changes

Add a fork_digest to `ForkContext` only if it is set in the config.
Reject gossip messages on post fork topics before the fork happens.

Edit: Instead of rejecting gossip messages on post fork topics, we now subscribe to post fork topics 2 slots before the fork.

Co-authored-by: Age Manning <Age@AgeManning.com>
This commit is contained in:
Pawan Dhananjay
2021-09-17 01:11:16 +00:00
parent acdcea9663
commit 64ad2af100
7 changed files with 145 additions and 24 deletions
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8
beacon_node/eth2_libp2p/tests/common/mod.rs
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@@ -11,14 +11,18 @@ use std::sync::Arc;
use std::sync::Weak;
use std::time::Duration;
use tokio::runtime::Runtime;
use types::{ChainSpec, EnrForkId, ForkContext, Hash256, MinimalEthSpec};
use types::{ChainSpec, EnrForkId, EthSpec, ForkContext, Hash256, MinimalEthSpec};
type E = MinimalEthSpec;
use tempfile::Builder as TempBuilder;
/// Returns a dummy fork context
fn fork_context() -> ForkContext {
ForkContext::new::<E>(types::Slot::new(0), Hash256::zero(), &ChainSpec::minimal())
let mut chain_spec = E::default_spec();
// Set fork_epoch to `Some` to ensure that the `ForkContext` object
// includes altair in the list of forks
chain_spec.altair_fork_epoch = Some(types::Epoch::new(42));
ForkContext::new::<E>(types::Slot::new(0), Hash256::zero(), &chain_spec)
}
pub struct Libp2pInstance(LibP2PService<E>, exit_future::Signal);