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beacon: fixed issues with electra light sync

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This commit is contained in:
Zsolt Felfoldi 2025-03-11 16:50:13 +01:00 committed by Felix Lange
parent 4da69b3782
commit f8b07baee2
7 changed files with 65 additions and 29 deletions
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2
beacon/blsync/engineclient.go
View file

@ -140,7 +140,7 @@ func (ec *engineClient) callForkchoiceUpdated(fork string, event types.ChainHead
var method string
switch fork {
case "deneb":
case "deneb", "electra":
method = "engine_forkchoiceUpdatedV3"
case "capella":
method = "engine_forkchoiceUpdatedV2"

12
beacon/light/api/light_api.go
View file

@ -43,7 +43,6 @@ var (
)
type CommitteeUpdate struct {
Version string
Update types.LightClientUpdate
NextSyncCommittee types.SerializedSyncCommittee
}
@ -81,9 +80,9 @@ func (u *CommitteeUpdate) UnmarshalJSON(input []byte) error {
if err := json.Unmarshal(input, &dec); err != nil {
return err
}
u.Version = dec.Version
u.NextSyncCommittee = dec.Data.NextSyncCommittee
u.Update = types.LightClientUpdate{
Version: dec.Version,
AttestedHeader: types.SignedHeader{
Header: dec.Data.Header.Beacon,
Signature: dec.Data.SyncAggregate,
@ -206,7 +205,7 @@ func (api *BeaconLightApi) GetOptimisticUpdate() (types.OptimisticUpdate, error)
func decodeOptimisticUpdate(enc []byte) (types.OptimisticUpdate, error) {
var data struct {
Version string
Version string `json:"version"`
Data struct {
Attested jsonHeaderWithExecProof `json:"attested_header"`
Aggregate types.SyncAggregate `json:"sync_aggregate"`
@ -259,7 +258,7 @@ func (api *BeaconLightApi) GetFinalityUpdate() (types.FinalityUpdate, error) {
func decodeFinalityUpdate(enc []byte) (types.FinalityUpdate, error) {
var data struct {
Version string
Version string `json:"version"`
Data struct {
Attested jsonHeaderWithExecProof `json:"attested_header"`
Finalized jsonHeaderWithExecProof `json:"finalized_header"`
@ -289,6 +288,7 @@ func decodeFinalityUpdate(enc []byte) (types.FinalityUpdate, error) {
}
return types.FinalityUpdate{
Version: data.Version,
Attested: types.HeaderWithExecProof{
Header: data.Data.Attested.Beacon,
PayloadHeader: attestedExecHeader,
@ -355,6 +355,7 @@ func (api *BeaconLightApi) GetCheckpointData(checkpointHash common.Hash) (*types
// See data structure definition here:
// https://github.com/ethereum/consensus-specs/blob/dev/specs/altair/light-client/sync-protocol.md#lightclientbootstrap
type bootstrapData struct {
Version string `json:"version"`
Data struct {
Header jsonBeaconHeader `json:"header"`
Committee *types.SerializedSyncCommittee `json:"current_sync_committee"`
@ -374,6 +375,7 @@ func (api *BeaconLightApi) GetCheckpointData(checkpointHash common.Hash) (*types
return nil, fmt.Errorf("invalid checkpoint block header, have %v want %v", header.Hash(), checkpointHash)
}
checkpoint := &types.BootstrapData{
Version: data.Version,
Header: header,
CommitteeBranch: data.Data.CommitteeBranch,
CommitteeRoot: data.Data.Committee.Root(),
@ -395,7 +397,7 @@ func (api *BeaconLightApi) GetBeaconBlock(blockRoot common.Hash) (*types.BeaconB
}
var beaconBlockMessage struct {
Version string
Version string `json:"version"`
Data struct {
Message json.RawMessage `json:"message"`
}

8
beacon/light/test_helpers.go
View file

@ -39,10 +39,10 @@ func GenerateTestUpdate(config *params.ChainConfig, period uint64, committee, ne
var attestedHeader types.Header
if finalizedHeader {
update.FinalizedHeader = new(types.Header)
*update.FinalizedHeader, update.NextSyncCommitteeBranch = makeTestHeaderWithMerkleProof(types.SyncPeriodStart(period)+100, params.StateIndexNextSyncCommittee, merkle.Value(update.NextSyncCommitteeRoot))
attestedHeader, update.FinalityBranch = makeTestHeaderWithMerkleProof(types.SyncPeriodStart(period)+200, params.StateIndexFinalBlock, merkle.Value(update.FinalizedHeader.Hash()))
*update.FinalizedHeader, update.NextSyncCommitteeBranch = makeTestHeaderWithMerkleProof(types.SyncPeriodStart(period)+100, params.StateIndexNextSyncCommittee(""), merkle.Value(update.NextSyncCommitteeRoot))
attestedHeader, update.FinalityBranch = makeTestHeaderWithMerkleProof(types.SyncPeriodStart(period)+200, params.StateIndexFinalBlock(""), merkle.Value(update.FinalizedHeader.Hash()))
} else {
attestedHeader, update.NextSyncCommitteeBranch = makeTestHeaderWithMerkleProof(types.SyncPeriodStart(period)+2000, params.StateIndexNextSyncCommittee, merkle.Value(update.NextSyncCommitteeRoot))
attestedHeader, update.NextSyncCommitteeBranch = makeTestHeaderWithMerkleProof(types.SyncPeriodStart(period)+2000, params.StateIndexNextSyncCommittee(""), merkle.Value(update.NextSyncCommitteeRoot))
}
update.AttestedHeader = GenerateTestSignedHeader(attestedHeader, config, committee, attestedHeader.Slot+1, signerCount)
return update
@ -63,7 +63,7 @@ func GenerateTestSignedHeader(header types.Header, config *params.ChainConfig, c
}
func GenerateTestCheckpoint(period uint64, committee *types.SerializedSyncCommittee) *types.BootstrapData {
header, branch := makeTestHeaderWithMerkleProof(types.SyncPeriodStart(period)+200, params.StateIndexSyncCommittee, merkle.Value(committee.Root()))
header, branch := makeTestHeaderWithMerkleProof(types.SyncPeriodStart(period)+200, params.StateIndexSyncCommittee(""), merkle.Value(committee.Root()))
return &types.BootstrapData{
Header: header,
Committee: committee,

6
beacon/params/networks.go
View file

@ -41,7 +41,8 @@ var (
AddFork("ALTAIR", 50, []byte{144, 0, 0, 112}).
AddFork("BELLATRIX", 100, []byte{144, 0, 0, 113}).
AddFork("CAPELLA", 56832, []byte{144, 0, 0, 114}).
AddFork("DENEB", 132608, []byte{144, 0, 0, 115})
AddFork("DENEB", 132608, []byte{144, 0, 0, 115}).
AddFork("ELECTRA", 222464, []byte{144, 0, 0, 116})
HoleskyLightConfig = (&ChainConfig{
GenesisValidatorsRoot: common.HexToHash("0x9143aa7c615a7f7115e2b6aac319c03529df8242ae705fba9df39b79c59fa8b1"),
@ -52,5 +53,6 @@ var (
AddFork("ALTAIR", 0, []byte{2, 1, 112, 0}).
AddFork("BELLATRIX", 0, []byte{3, 1, 112, 0}).
AddFork("CAPELLA", 256, []byte{4, 1, 112, 0}).
AddFork("DENEB", 29696, []byte{5, 1, 112, 0})
AddFork("DENEB", 29696, []byte{5, 1, 112, 0}).
AddFork("ELECTRA", 115968, []byte{6, 1, 112, 0})
)

34
beacon/params/params.go
View file

@ -36,11 +36,39 @@ const (
StateIndexBlockRoots = 37
StateIndexStateRoots = 38
StateIndexHistoricRoots = 39
StateIndexFinalBlock = 105
StateIndexSyncCommittee = 54
StateIndexNextSyncCommittee = 55
StateIndexFinalBlockOld = 105
StateIndexFinalBlockElectra = 169
StateIndexSyncCommitteeOld = 54
StateIndexSyncCommitteeElectra = 86
StateIndexNextSyncCommitteeOld = 55
StateIndexNextSyncCommitteeElectra = 87
StateIndexExecPayload = 56
StateIndexExecHead = 908
BodyIndexExecPayload = 25
)
func StateIndexFinalBlock(forkName string) uint64 {
switch forkName {
case "bellatrix", "capella", "deneb":
return StateIndexFinalBlockOld
default:
return StateIndexFinalBlockElectra
}
}
func StateIndexSyncCommittee(forkName string) uint64 {
switch forkName {
case "bellatrix", "capella", "deneb":
return StateIndexSyncCommitteeOld
default:
return StateIndexSyncCommitteeElectra
}
}
func StateIndexNextSyncCommittee(forkName string) uint64 {
switch forkName {
case "bellatrix", "capella", "deneb":
return StateIndexNextSyncCommitteeOld
default:
return StateIndexNextSyncCommitteeElectra
}
}

1
beacon/types/beacon_block.go
View file

@ -144,6 +144,7 @@ func (b *BeaconBlock) ExecutionRequestsList() [][]byte {
func marshalRequests(spec *zrntcommon.Spec, items ...zrntcommon.SpecObj) (list [][]byte) {
var buf bytes.Buffer
list = [][]byte{}
for typ, data := range items {
buf.Reset()
buf.WriteByte(byte(typ))

11
beacon/types/light_sync.go
View file

@ -36,6 +36,7 @@ type HeadInfo struct {
// together with a proof through a beacon header and corresponding state.
// Note: BootstrapData is fetched from a server based on a known checkpoint hash.
type BootstrapData struct {
Version string
Header Header
CommitteeRoot common.Hash
Committee *SerializedSyncCommittee `rlp:"-"`
@ -47,7 +48,7 @@ func (c *BootstrapData) Validate() error {
if c.CommitteeRoot != c.Committee.Root() {
return errors.New("wrong committee root")
}
return merkle.VerifyProof(c.Header.StateRoot, params.StateIndexSyncCommittee, c.CommitteeBranch, merkle.Value(c.CommitteeRoot))
return merkle.VerifyProof(c.Header.StateRoot, params.StateIndexSyncCommittee(c.Version), c.CommitteeBranch, merkle.Value(c.CommitteeRoot))
}
// LightClientUpdate is a proof of the next sync committee root based on a header
@ -59,6 +60,7 @@ func (c *BootstrapData) Validate() error {
// See data structure definition here:
// https://github.com/ethereum/consensus-specs/blob/dev/specs/altair/light-client/sync-protocol.md#lightclientupdate
type LightClientUpdate struct {
Version string
AttestedHeader SignedHeader // Arbitrary header out of the period signed by the sync committee
NextSyncCommitteeRoot common.Hash // Sync committee of the next period advertised in the current one
NextSyncCommitteeBranch merkle.Values // Proof for the next period's sync committee
@ -79,11 +81,11 @@ func (update *LightClientUpdate) Validate() error {
if update.FinalizedHeader.SyncPeriod() != period {
return errors.New("finalized header is from different period")
}
if err := merkle.VerifyProof(update.AttestedHeader.Header.StateRoot, params.StateIndexFinalBlock, update.FinalityBranch, merkle.Value(update.FinalizedHeader.Hash())); err != nil {
if err := merkle.VerifyProof(update.AttestedHeader.Header.StateRoot, params.StateIndexFinalBlock(update.Version), update.FinalityBranch, merkle.Value(update.FinalizedHeader.Hash())); err != nil {
return fmt.Errorf("invalid finalized header proof: %w", err)
}
}
if err := merkle.VerifyProof(update.AttestedHeader.Header.StateRoot, params.StateIndexNextSyncCommittee, update.NextSyncCommitteeBranch, merkle.Value(update.NextSyncCommitteeRoot)); err != nil {
if err := merkle.VerifyProof(update.AttestedHeader.Header.StateRoot, params.StateIndexNextSyncCommittee(update.Version), update.NextSyncCommitteeBranch, merkle.Value(update.NextSyncCommitteeRoot)); err != nil {
return fmt.Errorf("invalid next sync committee proof: %w", err)
}
return nil
@ -194,6 +196,7 @@ func (u *OptimisticUpdate) Validate() error {
// See data structure definition here:
// https://github.com/ethereum/consensus-specs/blob/dev/specs/altair/light-client/sync-protocol.md#lightclientfinalityupdate
type FinalityUpdate struct {
Version string
Attested, Finalized HeaderWithExecProof
FinalityBranch merkle.Values
// Sync committee BLS signature aggregate
@ -223,7 +226,7 @@ func (u *FinalityUpdate) Validate() error {
if err := u.Finalized.Validate(); err != nil {
return err
}
return merkle.VerifyProof(u.Attested.StateRoot, params.StateIndexFinalBlock, u.FinalityBranch, merkle.Value(u.Finalized.Hash()))
return merkle.VerifyProof(u.Attested.StateRoot, params.StateIndexFinalBlock(u.Version), u.FinalityBranch, merkle.Value(u.Finalized.Hash()))
}
// ChainHeadEvent returns an authenticated execution payload associated with the