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Final changes for fusaka-devnet-2 (#7655)

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Closes #7467.

This PR primarily addresses [the P2P changes](https://github.com/ethereum/EIPs/pull/9840) in [fusaka-devnet-2](https://fusaka-devnet-2.ethpandaops.io/). Specifically:

* [the new `nfd` parameter added to the `ENR`](https://github.com/ethereum/EIPs/pull/9840)
* [the modified `compute_fork_digest()` changes for every BPO fork](https://github.com/ethereum/EIPs/pull/9840)

90% of this PR was absolutely hacked together as fast as possible during the Berlinterop as fast as I could while running between Glamsterdam debates. Luckily, it seems to work. But I was unable to be as careful in avoiding bugs as I usually am. I've cleaned up the things *I remember* wanting to come back and have a closer look at. But still working on this.

Progress:
* [x] get it working on `fusaka-devnet-2`
* [ ] [*optional* disconnect from peers with incorrect `nfd` at the fork boundary](https://github.com/ethereum/consensus-specs/pull/4407) - Can be addressed in a future PR if necessary
* [x] first pass clean-up
* [x] fix up all the broken tests
* [x] final self-review
* [x] more thorough review from people more familiar with affected code
This commit is contained in:
ethDreamer
2025-07-10 16:32:58 -05:00
committed by GitHub
parent 3826fe91f4
commit b43e0b446c
26 changed files with 1047 additions and 581 deletions
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16
beacon_node/http_api/src/light_client.rs
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@@ -4,12 +4,12 @@ use crate::version::{
};
use beacon_chain::{BeaconChain, BeaconChainError, BeaconChainTypes};
use eth2::types::{
self as api_types, ChainSpec, LightClientUpdate, LightClientUpdateResponseChunk,
self as api_types, LightClientUpdate, LightClientUpdateResponseChunk,
LightClientUpdateResponseChunkInner, LightClientUpdatesQuery,
};
use ssz::Encode;
use std::sync::Arc;
use types::{BeaconResponse, ForkName, Hash256, LightClientBootstrap};
use types::{BeaconResponse, EthSpec, ForkName, Hash256, LightClientBootstrap};
use warp::{
hyper::{Body, Response},
reply::Reply,
@@ -150,14 +150,10 @@ fn map_light_client_update_to_ssz_chunk<T: BeaconChainTypes>(
chain: &BeaconChain<T>,
light_client_update: &LightClientUpdate<T::EthSpec>,
) -> LightClientUpdateResponseChunk {
let fork_name = chain
.spec
.fork_name_at_slot::<T::EthSpec>(light_client_update.attested_header_slot());
let fork_digest = ChainSpec::compute_fork_digest(
chain.spec.fork_version_for_name(fork_name),
chain.genesis_validators_root,
);
let epoch = light_client_update
.attested_header_slot()
.epoch(T::EthSpec::slots_per_epoch());
let fork_digest = chain.compute_fork_digest(epoch);
let payload = light_client_update.as_ssz_bytes();
let response_chunk_len = fork_digest.len() + payload.len();