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fix(network): clear ENR nfd field when no next fork is scheduled during runtime transitions (#9131)

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No. But related to #9009 and #8996


  - Change the `ForkContext::next_fork_digest()` to return `[u8; 4]` (returning `[0u8; 4]` for "no next fork").
- Update the initialization path and runtime fork transition path accordingly.

Added tests:
- [x] `test_next_fork_digest` — existing test passes with non-Option return type
- [x] `test_next_fork_digest_returns_zero_when_no_next_fork` — init at last BPO fork returns `[0u8; 4]`
- [x] `test_next_fork_digest_zero_after_runtime_transition_to_last_fork` — simulates `update_current_fork` to last fork, then verifies zero


Co-Authored-By: alleysira <1367108378@qq.com>

Co-Authored-By: Alleysira <56925051+Alleysira@users.noreply.github.com>

Co-Authored-By: chonghe <44791194+chong-he@users.noreply.github.com>
This commit is contained in:
Alleysira
2026-06-06 04:16:28 +08:00
committed by GitHub
parent 42e678189c
commit abe7ca20a9
4 changed files with 46 additions and 13 deletions
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5
beacon_node/lighthouse_network/src/discovery/enr.rs
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@@ -320,11 +320,12 @@ fn compare_enr(local_enr: &Enr, disk_enr: &Enr) -> bool {
&& (local_enr.udp4().is_none() || local_enr.udp4() == disk_enr.udp4())
&& (local_enr.udp6().is_none() || local_enr.udp6() == disk_enr.udp6())
// we need the ATTESTATION_BITFIELD_ENR_KEY and SYNC_COMMITTEE_BITFIELD_ENR_KEY and
// PEERDAS_CUSTODY_GROUP_COUNT_ENR_KEY key to match, otherwise we use a new ENR. This will
// likely only be true for non-validating nodes.
// PEERDAS_CUSTODY_GROUP_COUNT_ENR_KEY and NEXT_FORK_DIGEST_ENR_KEY keys to match,
// otherwise we use a new ENR. This will likely only be true for non-validating nodes.
&& local_enr.get_decodable::<Bytes>(ATTESTATION_BITFIELD_ENR_KEY) == disk_enr.get_decodable(ATTESTATION_BITFIELD_ENR_KEY)
&& local_enr.get_decodable::<Bytes>(SYNC_COMMITTEE_BITFIELD_ENR_KEY) == disk_enr.get_decodable(SYNC_COMMITTEE_BITFIELD_ENR_KEY)
&& local_enr.get_decodable::<Bytes>(PEERDAS_CUSTODY_GROUP_COUNT_ENR_KEY) == disk_enr.get_decodable(PEERDAS_CUSTODY_GROUP_COUNT_ENR_KEY)
&& local_enr.get_decodable::<Bytes>(NEXT_FORK_DIGEST_ENR_KEY) == disk_enr.get_decodable(NEXT_FORK_DIGEST_ENR_KEY)
}
/// Loads enr from the given directory