From 28e472aa5f6016b599833431795b36e6e2253936 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rados=C5=82aw=20Kapka?= Date: Wed, 1 Sep 2021 19:19:29 +0200 Subject: [PATCH] Implement `PrepareSyncCommitteeSubnets` in the beacon API (#9498) * initial implementation * final implementation * review * fix logic * refactor duration calculation * tests * revert alias change Co-authored-by: Nishant Das Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com> --- beacon-chain/rpc/eth/validator/validator.go | 72 ++++++- .../rpc/eth/validator/validator_test.go | 141 +++++++++++++ proto/eth/v2/validator.pb.go | 188 +++++++++--------- proto/eth/v2/validator.proto | 2 +- 4 files changed, 304 insertions(+), 99 deletions(-) diff --git a/beacon-chain/rpc/eth/validator/validator.go b/beacon-chain/rpc/eth/validator/validator.go index f34938c45..e0c94027a 100644 --- a/beacon-chain/rpc/eth/validator/validator.go +++ b/beacon-chain/rpc/eth/validator/validator.go @@ -5,6 +5,7 @@ import ( "context" "sort" "strconv" + "time" "github.com/golang/protobuf/ptypes/empty" "github.com/pkg/errors" @@ -415,8 +416,75 @@ func (vs *Server) SubmitBeaconCommitteeSubscription(ctx context.Context, req *et return &emptypb.Empty{}, nil } -func (vs *Server) SubmitSyncCommitteeSubscription(ctx context.Context, request *ethpbv2.SubmitSyncCommitteeSubscriptionsRequest) (*empty.Empty, error) { - panic("implement me") +// SubmitSyncCommitteeSubscription subscribe to a number of sync committee subnets. +// +// Subscribing to sync committee subnets is an action performed by VC to enable +// network participation in Altair networks, and only required if the VC has an active +// validator in an active sync committee. +func (vs *Server) SubmitSyncCommitteeSubscription(ctx context.Context, req *ethpbv2.SubmitSyncCommitteeSubscriptionsRequest) (*empty.Empty, error) { + ctx, span := trace.StartSpan(ctx, "validator.SubmitSyncCommitteeSubscription") + defer span.End() + + if vs.SyncChecker.Syncing() { + return nil, status.Error(codes.Unavailable, "Syncing to latest head, not ready to respond") + } + if len(req.Data) == 0 { + return nil, status.Error(codes.InvalidArgument, "No subscriptions provided") + } + s, err := vs.HeadFetcher.HeadState(ctx) + if err != nil { + return nil, status.Errorf(codes.Internal, "Could not get head state: %v", err) + } + currEpoch := helpers.SlotToEpoch(s.Slot()) + validators := make([]state.ReadOnlyValidator, len(req.Data)) + for i, sub := range req.Data { + val, err := s.ValidatorAtIndexReadOnly(sub.ValidatorIndex) + if err != nil { + return nil, status.Errorf(codes.Internal, "Could not get validator at index %d: %v", sub.ValidatorIndex, err) + } + valStatus, err := rpchelpers.ValidatorSubStatus(val, currEpoch) + if err != nil { + return nil, status.Errorf(codes.Internal, "Could not get validator status at index %d: %v", sub.ValidatorIndex, err) + } + if valStatus != ethpbv1.ValidatorStatus_ACTIVE_ONGOING && valStatus != ethpbv1.ValidatorStatus_ACTIVE_EXITING { + return nil, status.Errorf(codes.InvalidArgument, "Validator at index %d is not active or exiting: %v", sub.ValidatorIndex, err) + } + validators[i] = val + } + + currPeriod := helpers.SyncCommitteePeriod(currEpoch) + startEpoch := types.Epoch(currPeriod * uint64(params.BeaconConfig().EpochsPerSyncCommitteePeriod)) + + for i, sub := range req.Data { + if sub.UntilEpoch < currEpoch { + return nil, status.Errorf(codes.InvalidArgument, "Epoch for subscription at index %d is in the past. It must be at least %d", i, currEpoch) + } + maxValidEpoch := startEpoch + params.BeaconConfig().EpochsPerSyncCommitteePeriod + if sub.UntilEpoch > maxValidEpoch { + return nil, status.Errorf( + codes.InvalidArgument, + "Epoch for subscription at index %d is too far in the future. It can be at most %d", + i, + maxValidEpoch, + ) + } + } + + for i, sub := range req.Data { + pubkey48 := validators[i].PublicKey() + // Handle overflow in the event current epoch is less than end epoch. + // This is an impossible condition, so it is a defensive check. + epochsToWatch, err := sub.UntilEpoch.SafeSub(uint64(startEpoch)) + if err != nil { + epochsToWatch = 0 + } + epochDuration := time.Duration(params.BeaconConfig().SlotsPerEpoch.Mul(params.BeaconConfig().SecondsPerSlot)) * time.Second + totalDuration := epochDuration * time.Duration(epochsToWatch) + + cache.SyncSubnetIDs.AddSyncCommitteeSubnets(pubkey48[:], startEpoch, sub.SyncCommitteeIndices, totalDuration) + } + + return &empty.Empty{}, nil } func (vs *Server) ProduceSyncCommitteeContribution( diff --git a/beacon-chain/rpc/eth/validator/validator_test.go b/beacon-chain/rpc/eth/validator/validator_test.go index 9cbabfb42..4837d4268 100644 --- a/beacon-chain/rpc/eth/validator/validator_test.go +++ b/beacon-chain/rpc/eth/validator/validator_test.go @@ -852,6 +852,147 @@ func TestSubmitBeaconCommitteeSubscription_SyncNotReady(t *testing.T) { assert.ErrorContains(t, "Syncing to latest head, not ready to respond", err) } +func TestSubmitSyncCommitteeSubscription(t *testing.T) { + ctx := context.Background() + genesis := sharedtestutil.NewBeaconBlock() + deposits, _, err := sharedtestutil.DeterministicDepositsAndKeys(64) + require.NoError(t, err) + eth1Data, err := sharedtestutil.DeterministicEth1Data(len(deposits)) + require.NoError(t, err) + bs, err := sharedtestutil.GenesisBeaconState(context.Background(), deposits, 0, eth1Data) + require.NoError(t, err, "Could not set up genesis state") + // Set state to epoch 1. + require.NoError(t, bs.SetSlot(params.BeaconConfig().SlotsPerEpoch)) + genesisRoot, err := genesis.Block.HashTreeRoot() + require.NoError(t, err, "Could not get signing root") + roots := make([][]byte, params.BeaconConfig().SlotsPerHistoricalRoot) + roots[0] = genesisRoot[:] + require.NoError(t, bs.SetBlockRoots(roots)) + + pubkeys := make([][]byte, len(deposits)) + for i := 0; i < len(deposits); i++ { + pubkeys[i] = deposits[i].Data.PublicKey + } + + chainSlot := types.Slot(0) + chain := &mockChain.ChainService{ + State: bs, Root: genesisRoot[:], Slot: &chainSlot, + } + vs := &Server{ + HeadFetcher: chain, + TimeFetcher: chain, + SyncChecker: &mockSync.Sync{IsSyncing: false}, + V1Alpha1Server: &v1alpha1validator.Server{}, + } + + t.Run("Single subscription", func(t *testing.T) { + cache.SyncSubnetIDs.EmptyAllCaches() + req := ðpbv2.SubmitSyncCommitteeSubscriptionsRequest{ + Data: []*ethpbv2.SyncCommitteeSubscription{ + { + ValidatorIndex: 0, + SyncCommitteeIndices: []uint64{0, 2}, + UntilEpoch: 1, + }, + }, + } + _, err = vs.SubmitSyncCommitteeSubscription(ctx, req) + require.NoError(t, err) + subnets, _, _, _ := cache.SyncSubnetIDs.GetSyncCommitteeSubnets(pubkeys[0], 0) + require.Equal(t, 2, len(subnets)) + assert.Equal(t, uint64(0), subnets[0]) + assert.Equal(t, uint64(2), subnets[1]) + }) + + t.Run("Multiple subscriptions", func(t *testing.T) { + cache.SyncSubnetIDs.EmptyAllCaches() + req := ðpbv2.SubmitSyncCommitteeSubscriptionsRequest{ + Data: []*ethpbv2.SyncCommitteeSubscription{ + { + ValidatorIndex: 0, + SyncCommitteeIndices: []uint64{0}, + UntilEpoch: 1, + }, + { + ValidatorIndex: 1, + SyncCommitteeIndices: []uint64{2}, + UntilEpoch: 1, + }, + }, + } + _, err = vs.SubmitSyncCommitteeSubscription(ctx, req) + require.NoError(t, err) + subnets, _, _, _ := cache.SyncSubnetIDs.GetSyncCommitteeSubnets(pubkeys[0], 0) + require.Equal(t, 1, len(subnets)) + assert.Equal(t, uint64(0), subnets[0]) + subnets, _, _, _ = cache.SyncSubnetIDs.GetSyncCommitteeSubnets(pubkeys[1], 0) + require.Equal(t, 1, len(subnets)) + assert.Equal(t, uint64(2), subnets[0]) + }) + + t.Run("No subscriptions", func(t *testing.T) { + req := ðpbv2.SubmitSyncCommitteeSubscriptionsRequest{ + Data: make([]*ethpbv2.SyncCommitteeSubscription, 0), + } + _, err = vs.SubmitSyncCommitteeSubscription(ctx, req) + require.NotNil(t, err) + assert.ErrorContains(t, "No subscriptions provided", err) + }) + + t.Run("Invalid validator index", func(t *testing.T) { + req := ðpbv2.SubmitSyncCommitteeSubscriptionsRequest{ + Data: []*ethpbv2.SyncCommitteeSubscription{ + { + ValidatorIndex: 99, + SyncCommitteeIndices: []uint64{}, + UntilEpoch: 1, + }, + }, + } + _, err = vs.SubmitSyncCommitteeSubscription(ctx, req) + require.NotNil(t, err) + assert.ErrorContains(t, "Could not get validator at index 99", err) + }) + + t.Run("Epoch in the past", func(t *testing.T) { + req := ðpbv2.SubmitSyncCommitteeSubscriptionsRequest{ + Data: []*ethpbv2.SyncCommitteeSubscription{ + { + ValidatorIndex: 0, + SyncCommitteeIndices: []uint64{}, + UntilEpoch: 0, + }, + }, + } + _, err = vs.SubmitSyncCommitteeSubscription(ctx, req) + require.NotNil(t, err) + assert.ErrorContains(t, "Epoch for subscription at index 0 is in the past", err) + }) + + t.Run("Epoch too far in the future", func(t *testing.T) { + req := ðpbv2.SubmitSyncCommitteeSubscriptionsRequest{ + Data: []*ethpbv2.SyncCommitteeSubscription{ + { + ValidatorIndex: 0, + SyncCommitteeIndices: []uint64{}, + UntilEpoch: params.BeaconConfig().EpochsPerSyncCommitteePeriod + 1, + }, + }, + } + _, err = vs.SubmitSyncCommitteeSubscription(ctx, req) + require.NotNil(t, err) + assert.ErrorContains(t, "Epoch for subscription at index 0 is too far in the future", err) + }) +} + +func TestSubmitSyncCommitteeSubscription_SyncNotReady(t *testing.T) { + vs := &Server{ + SyncChecker: &mockSync.Sync{IsSyncing: true}, + } + _, err := vs.SubmitSyncCommitteeSubscription(context.Background(), ðpbv2.SubmitSyncCommitteeSubscriptionsRequest{}) + assert.ErrorContains(t, "Syncing to latest head, not ready to respond", err) +} + func TestSubmitAggregateAndProofs(t *testing.T) { ctx := context.Background() params.SetupTestConfigCleanup(t) diff --git a/proto/eth/v2/validator.pb.go b/proto/eth/v2/validator.pb.go index 52c1b2e8a..bae81f756 100755 --- a/proto/eth/v2/validator.pb.go +++ b/proto/eth/v2/validator.pb.go @@ -356,9 +356,9 @@ type SyncCommitteeSubscription struct { sizeCache protoimpl.SizeCache unknownFields protoimpl.UnknownFields - ValidatorIndex github_com_prysmaticlabs_eth2_types.ValidatorIndex `protobuf:"varint,1,opt,name=validator_index,json=validatorIndex,proto3" json:"validator_index,omitempty" cast-type:"github.com/prysmaticlabs/eth2-types.ValidatorIndex"` - SyncCommitteeIndices []github_com_prysmaticlabs_eth2_types.CommitteeIndex `protobuf:"varint,2,rep,packed,name=sync_committee_indices,json=syncCommitteeIndices,proto3" json:"sync_committee_indices,omitempty" cast-type:"github.com/prysmaticlabs/eth2-types.CommitteeIndex"` - UntilEpoch github_com_prysmaticlabs_eth2_types.Epoch `protobuf:"varint,3,opt,name=until_epoch,json=untilEpoch,proto3" json:"until_epoch,omitempty" cast-type:"github.com/prysmaticlabs/eth2-types.Epoch"` + ValidatorIndex github_com_prysmaticlabs_eth2_types.ValidatorIndex `protobuf:"varint,1,opt,name=validator_index,json=validatorIndex,proto3" json:"validator_index,omitempty" cast-type:"github.com/prysmaticlabs/eth2-types.ValidatorIndex"` + SyncCommitteeIndices []uint64 `protobuf:"varint,2,rep,packed,name=sync_committee_indices,json=syncCommitteeIndices,proto3" json:"sync_committee_indices,omitempty"` + UntilEpoch github_com_prysmaticlabs_eth2_types.Epoch `protobuf:"varint,3,opt,name=until_epoch,json=untilEpoch,proto3" json:"until_epoch,omitempty" cast-type:"github.com/prysmaticlabs/eth2-types.Epoch"` } func (x *SyncCommitteeSubscription) Reset() { @@ -400,11 +400,11 @@ func (x *SyncCommitteeSubscription) GetValidatorIndex() github_com_prysmaticlabs return github_com_prysmaticlabs_eth2_types.ValidatorIndex(0) } -func (x *SyncCommitteeSubscription) GetSyncCommitteeIndices() []github_com_prysmaticlabs_eth2_types.CommitteeIndex { +func (x *SyncCommitteeSubscription) GetSyncCommitteeIndices() []uint64 { if x != nil { return x.SyncCommitteeIndices } - return []github_com_prysmaticlabs_eth2_types.CommitteeIndex(nil) + return nil } func (x *SyncCommitteeSubscription) GetUntilEpoch() github_com_prysmaticlabs_eth2_types.Epoch { @@ -832,7 +832,7 @@ var file_proto_eth_v2_validator_proto_rawDesc = []byte{ 0x32, 0x2a, 0x2e, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74, 0x68, 0x2e, 0x76, 0x32, 0x2e, 0x53, 0x79, 0x6e, 0x63, 0x43, 0x6f, 0x6d, 0x6d, 0x69, 0x74, 0x74, 0x65, 0x65, 0x53, 0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x04, 0x64, 0x61, - 0x74, 0x61, 0x22, 0xba, 0x02, 0x0a, 0x19, 0x53, 0x79, 0x6e, 0x63, 0x43, 0x6f, 0x6d, 0x6d, 0x69, + 0x74, 0x61, 0x22, 0x82, 0x02, 0x0a, 0x19, 0x53, 0x79, 0x6e, 0x63, 0x43, 0x6f, 0x6d, 0x6d, 0x69, 0x74, 0x74, 0x65, 0x65, 0x53, 0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x5f, 0x0a, 0x0f, 0x76, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x6f, 0x72, 0x5f, 0x69, 0x6e, 0x64, 0x65, 0x78, 0x18, 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