mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-24 12:37:16 +00:00
297 lines
12 KiB
Go
297 lines
12 KiB
Go
package commands
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import (
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"context"
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"encoding/binary"
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"fmt"
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"math/big"
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"github.com/holiman/uint256"
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"github.com/ledgerwatch/erigon-lib/gointerfaces"
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"github.com/ledgerwatch/erigon-lib/gointerfaces/remote"
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types2 "github.com/ledgerwatch/erigon-lib/gointerfaces/types"
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"github.com/ledgerwatch/erigon-lib/kv"
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"github.com/ledgerwatch/erigon/common"
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"github.com/ledgerwatch/erigon/common/hexutil"
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"github.com/ledgerwatch/erigon/core/rawdb"
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"github.com/ledgerwatch/erigon/core/types"
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"github.com/ledgerwatch/erigon/turbo/rpchelper"
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"github.com/ledgerwatch/log/v3"
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)
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// ExecutionPayload represents an execution payload (aka slot/block)
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type ExecutionPayload struct {
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ParentHash common.Hash `json:"parentHash" gencodec:"required"`
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FeeRecipient common.Address `json:"feeRecipient" gencodec:"required"`
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StateRoot common.Hash `json:"stateRoot" gencodec:"required"`
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ReceiptsRoot common.Hash `json:"receiptsRoot" gencodec:"required"`
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LogsBloom hexutil.Bytes `json:"logsBloom" gencodec:"required"`
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PrevRandao common.Hash `json:"prevRandao" gencodec:"required"`
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BlockNumber hexutil.Uint64 `json:"blockNumber" gencodec:"required"`
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GasLimit hexutil.Uint64 `json:"gasLimit" gencodec:"required"`
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GasUsed hexutil.Uint64 `json:"gasUsed" gencodec:"required"`
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Timestamp hexutil.Uint64 `json:"timestamp" gencodec:"required"`
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ExtraData hexutil.Bytes `json:"extraData" gencodec:"required"`
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BaseFeePerGas *hexutil.Big `json:"baseFeePerGas" gencodec:"required"`
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BlockHash common.Hash `json:"blockHash" gencodec:"required"`
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Transactions []hexutil.Bytes `json:"transactions" gencodec:"required"`
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}
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// PayloadAttributes represent the attributes required to start assembling a payload
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type ForkChoiceState struct {
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HeadHash common.Hash `json:"headBlockHash" gencodec:"required"`
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SafeBlockHash common.Hash `json:"safeBlockHash" gencodec:"required"`
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FinalizedBlockHash common.Hash `json:"finalizedBlockHash" gencodec:"required"`
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}
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// PayloadAttributes represent the attributes required to start assembling a payload
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type PayloadAttributes struct {
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Timestamp hexutil.Uint64 `json:"timestamp" gencodec:"required"`
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PrevRandao common.Hash `json:"prevRandao" gencodec:"required"`
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SuggestedFeeRecipient common.Address `json:"suggestedFeeRecipient" gencodec:"required"`
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}
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// TransitionConfiguration represents the correct configurations of the CL and the EL
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type TransitionConfiguration struct {
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TerminalTotalDifficulty *hexutil.Big `json:"terminalTotalDifficulty" gencodec:"required"`
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TerminalBlockHash common.Hash `json:"terminalBlockHash" gencodec:"required"`
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TerminalBlockNumber *hexutil.Big `json:"terminalBlockNumber" gencodec:"required"`
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}
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// EngineAPI Beacon chain communication endpoint
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type EngineAPI interface {
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ForkchoiceUpdatedV1(ctx context.Context, forkChoiceState *ForkChoiceState, payloadAttributes *PayloadAttributes) (map[string]interface{}, error)
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NewPayloadV1(context.Context, *ExecutionPayload) (map[string]interface{}, error)
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GetPayloadV1(ctx context.Context, payloadID hexutil.Bytes) (*ExecutionPayload, error)
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ExchangeTransitionConfigurationV1(ctx context.Context, transitionConfiguration TransitionConfiguration) (TransitionConfiguration, error)
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}
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// EngineImpl is implementation of the EngineAPI interface
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type EngineImpl struct {
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*BaseAPI
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db kv.RoDB
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api rpchelper.ApiBackend
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}
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func convertPayloadStatus(x *remote.EnginePayloadStatus) map[string]interface{} {
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json := map[string]interface{}{
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"status": x.Status.String(),
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}
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if x.LatestValidHash != nil && x.Status != remote.EngineStatus_ACCEPTED {
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json["latestValidHash"] = common.Hash(gointerfaces.ConvertH256ToHash(x.LatestValidHash))
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}
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if x.ValidationError != "" {
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json["validationError"] = x.ValidationError
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}
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return json
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}
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func (e *EngineImpl) ForkchoiceUpdatedV1(ctx context.Context, forkChoiceState *ForkChoiceState, payloadAttributes *PayloadAttributes) (map[string]interface{}, error) {
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log.Debug("Received ForkchoiceUpdated", "head", forkChoiceState.HeadHash, "safe", forkChoiceState.HeadHash, "finalized", forkChoiceState.FinalizedBlockHash,
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"build", payloadAttributes != nil)
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var prepareParameters *remote.EnginePayloadAttributes
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if payloadAttributes != nil {
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prepareParameters = &remote.EnginePayloadAttributes{
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Timestamp: uint64(payloadAttributes.Timestamp),
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PrevRandao: gointerfaces.ConvertHashToH256(payloadAttributes.PrevRandao),
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SuggestedFeeRecipient: gointerfaces.ConvertAddressToH160(payloadAttributes.SuggestedFeeRecipient),
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}
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}
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reply, err := e.api.EngineForkchoiceUpdatedV1(ctx, &remote.EngineForkChoiceUpdatedRequest{
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ForkchoiceState: &remote.EngineForkChoiceState{
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HeadBlockHash: gointerfaces.ConvertHashToH256(forkChoiceState.HeadHash),
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SafeBlockHash: gointerfaces.ConvertHashToH256(forkChoiceState.SafeBlockHash),
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FinalizedBlockHash: gointerfaces.ConvertHashToH256(forkChoiceState.FinalizedBlockHash),
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},
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PayloadAttributes: prepareParameters,
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})
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if err != nil {
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return nil, err
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}
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payloadStatus := convertPayloadStatus(reply.PayloadStatus)
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if reply.PayloadStatus.Status == remote.EngineStatus_INVALID && payloadStatus["latestValidHash"] != nil {
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tx, err := e.db.BeginRo(ctx)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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latestValidHash := payloadStatus["latestValidHash"].(common.Hash)
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isValidHashPos, err := rawdb.IsPosBlock(tx, latestValidHash)
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if err != nil {
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return nil, err
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}
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if !isValidHashPos {
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payloadStatus["latestValidHash"] = common.Hash{}
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}
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}
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json := map[string]interface{}{
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"payloadStatus": payloadStatus,
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}
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if reply.PayloadId != 0 {
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encodedPayloadId := make([]byte, 8)
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binary.BigEndian.PutUint64(encodedPayloadId, reply.PayloadId)
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json["payloadId"] = hexutil.Bytes(encodedPayloadId)
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}
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return json, nil
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}
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// NewPayloadV1 processes new payloads (blocks) from the beacon chain.
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// See https://github.com/ethereum/execution-apis/blob/main/src/engine/specification.md#engine_newpayloadv1
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func (e *EngineImpl) NewPayloadV1(ctx context.Context, payload *ExecutionPayload) (map[string]interface{}, error) {
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log.Debug("Received NewPayload", "height", uint64(payload.BlockNumber), "hash", payload.BlockHash)
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var baseFee *uint256.Int
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if payload.BaseFeePerGas != nil {
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var overflow bool
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baseFee, overflow = uint256.FromBig((*big.Int)(payload.BaseFeePerGas))
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if overflow {
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log.Warn("NewPayload BaseFeePerGas overflow")
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return nil, fmt.Errorf("invalid request")
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}
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}
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// Convert slice of hexutil.Bytes to a slice of slice of bytes
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transactions := make([][]byte, len(payload.Transactions))
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for i, transaction := range payload.Transactions {
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transactions[i] = transaction
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}
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res, err := e.api.EngineNewPayloadV1(ctx, &types2.ExecutionPayload{
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ParentHash: gointerfaces.ConvertHashToH256(payload.ParentHash),
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Coinbase: gointerfaces.ConvertAddressToH160(payload.FeeRecipient),
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StateRoot: gointerfaces.ConvertHashToH256(payload.StateRoot),
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ReceiptRoot: gointerfaces.ConvertHashToH256(payload.ReceiptsRoot),
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LogsBloom: gointerfaces.ConvertBytesToH2048(payload.LogsBloom),
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PrevRandao: gointerfaces.ConvertHashToH256(payload.PrevRandao),
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BlockNumber: uint64(payload.BlockNumber),
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GasLimit: uint64(payload.GasLimit),
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GasUsed: uint64(payload.GasUsed),
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Timestamp: uint64(payload.Timestamp),
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ExtraData: payload.ExtraData,
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BaseFeePerGas: gointerfaces.ConvertUint256IntToH256(baseFee),
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BlockHash: gointerfaces.ConvertHashToH256(payload.BlockHash),
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Transactions: transactions,
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})
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if err != nil {
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log.Warn("NewPayload", "err", err)
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return nil, err
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}
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payloadStatus := convertPayloadStatus(res)
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if payloadStatus["latestValidHash"] != nil {
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tx, err := e.db.BeginRo(ctx)
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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latestValidHash := payloadStatus["latestValidHash"].(common.Hash)
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isValidHashPos, err := rawdb.IsPosBlock(tx, latestValidHash)
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if err != nil {
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return nil, err
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}
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if !isValidHashPos {
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payloadStatus["latestValidHash"] = common.Hash{}
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}
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}
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return payloadStatus, nil
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}
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func (e *EngineImpl) GetPayloadV1(ctx context.Context, payloadID hexutil.Bytes) (*ExecutionPayload, error) {
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decodedPayloadId := binary.BigEndian.Uint64(payloadID)
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log.Info("Received GetPayload", "payloadId", decodedPayloadId)
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payload, err := e.api.EngineGetPayloadV1(ctx, decodedPayloadId)
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if err != nil {
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return nil, err
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}
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var bloom types.Bloom = gointerfaces.ConvertH2048ToBloom(payload.LogsBloom)
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var baseFee *big.Int
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if payload.BaseFeePerGas != nil {
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baseFee = gointerfaces.ConvertH256ToUint256Int(payload.BaseFeePerGas).ToBig()
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}
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// Convert slice of hexutil.Bytes to a slice of slice of bytes
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transactions := make([]hexutil.Bytes, len(payload.Transactions))
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for i, transaction := range payload.Transactions {
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transactions[i] = transaction
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}
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return &ExecutionPayload{
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ParentHash: gointerfaces.ConvertH256ToHash(payload.ParentHash),
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FeeRecipient: gointerfaces.ConvertH160toAddress(payload.Coinbase),
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StateRoot: gointerfaces.ConvertH256ToHash(payload.StateRoot),
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ReceiptsRoot: gointerfaces.ConvertH256ToHash(payload.ReceiptRoot),
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LogsBloom: bloom[:],
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PrevRandao: gointerfaces.ConvertH256ToHash(payload.PrevRandao),
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BlockNumber: hexutil.Uint64(payload.BlockNumber),
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GasLimit: hexutil.Uint64(payload.GasLimit),
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GasUsed: hexutil.Uint64(payload.GasUsed),
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Timestamp: hexutil.Uint64(payload.Timestamp),
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ExtraData: payload.ExtraData,
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BaseFeePerGas: (*hexutil.Big)(baseFee),
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BlockHash: gointerfaces.ConvertH256ToHash(payload.BlockHash),
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Transactions: transactions,
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}, nil
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}
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// Receives consensus layer's transition configuration and checks if the execution layer has the correct configuration.
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// Can also be used to ping the execution layer (heartbeats).
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// See https://github.com/ethereum/execution-apis/blob/v1.0.0-alpha.7/src/engine/specification.md#engine_exchangetransitionconfigurationv1
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func (e *EngineImpl) ExchangeTransitionConfigurationV1(ctx context.Context, beaconConfig TransitionConfiguration) (TransitionConfiguration, error) {
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tx, err := e.db.BeginRo(ctx)
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if err != nil {
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return TransitionConfiguration{}, err
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}
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defer tx.Rollback()
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chainConfig, err := e.BaseAPI.chainConfig(tx)
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if err != nil {
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return TransitionConfiguration{}, err
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}
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terminalTotalDifficulty := chainConfig.TerminalTotalDifficulty
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if terminalTotalDifficulty == nil {
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return TransitionConfiguration{}, fmt.Errorf("the execution layer doesn't have a terminal total difficulty. expected: %v", beaconConfig.TerminalTotalDifficulty)
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}
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if terminalTotalDifficulty.Cmp((*big.Int)(beaconConfig.TerminalTotalDifficulty)) != 0 {
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return TransitionConfiguration{}, fmt.Errorf("the execution layer has a wrong terminal total difficulty. expected %v, but instead got: %d", beaconConfig.TerminalTotalDifficulty, terminalTotalDifficulty)
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}
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if chainConfig.TerminalBlockHash != beaconConfig.TerminalBlockHash {
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return TransitionConfiguration{}, fmt.Errorf("the execution layer has a wrong terminal block hash. expected %s, but instead got: %s", beaconConfig.TerminalBlockHash, chainConfig.TerminalBlockHash)
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}
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terminalBlockNumber := chainConfig.TerminalBlockNumber
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if terminalBlockNumber == nil {
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terminalBlockNumber = common.Big0
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}
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if terminalBlockNumber.Cmp((*big.Int)(beaconConfig.TerminalBlockNumber)) != 0 {
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return TransitionConfiguration{}, fmt.Errorf("the execution layer has a wrong terminal block number. expected %v, but instead got: %d", beaconConfig.TerminalBlockNumber, terminalBlockNumber)
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}
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return TransitionConfiguration{
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TerminalTotalDifficulty: (*hexutil.Big)(terminalTotalDifficulty),
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TerminalBlockHash: chainConfig.TerminalBlockHash,
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TerminalBlockNumber: (*hexutil.Big)(terminalBlockNumber),
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}, nil
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}
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// NewEngineAPI returns EngineImpl instance
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func NewEngineAPI(base *BaseAPI, db kv.RoDB, api rpchelper.ApiBackend) *EngineImpl {
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return &EngineImpl{
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BaseAPI: base,
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db: db,
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api: api,
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}
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}
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