forked from mirror/go-ethereum
all: separate catalyst package (#24280)
* all: seperate catalyst package * eth/catalyst: moved some methods, added docs * eth/catalyst, les/catalyst: add method docs * core, eth, les, miner: move common function to beacon package * eth/catalyst: goimported * cmd/utils, miner/stress/beacon: naming nitpicks Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de> Co-authored-by: Péter Szilágyi <peterke@gmail.com>release/1.10
rjl493456442
3 years ago
committed by
GitHub
parent
a5c0cfb451
commit
9da25c5db7
@ -0,0 +1,29 @@ |
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// Copyright 2022 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
|
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// it under the terms of the GNU Lesser General Public License as published by
|
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// the Free Software Foundation, either version 3 of the License, or
|
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// (at your option) any later version.
|
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//
|
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// The go-ethereum library is distributed in the hope that it will be useful,
|
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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// GNU Lesser General Public License for more details.
|
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//
|
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// You should have received a copy of the GNU Lesser General Public License
|
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>
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package beacon |
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import "github.com/ethereum/go-ethereum/rpc" |
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var ( |
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VALID = GenericStringResponse{"VALID"} |
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SUCCESS = GenericStringResponse{"SUCCESS"} |
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INVALID = ForkChoiceResponse{Status: "INVALID", PayloadID: nil} |
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SYNCING = ForkChoiceResponse{Status: "SYNCING", PayloadID: nil} |
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GenericServerError = rpc.CustomError{Code: -32000, ValidationError: "Server error"} |
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UnknownPayload = rpc.CustomError{Code: -32001, ValidationError: "Unknown payload"} |
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InvalidTB = rpc.CustomError{Code: -32002, ValidationError: "Invalid terminal block"} |
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) |
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@ -1,6 +1,6 @@ |
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// Code generated by github.com/fjl/gencodec. DO NOT EDIT.
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package catalyst |
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package beacon |
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import ( |
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"encoding/json" |
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@ -1,6 +1,6 @@ |
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// Code generated by github.com/fjl/gencodec. DO NOT EDIT.
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package catalyst |
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package beacon |
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import ( |
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"encoding/json" |
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@ -0,0 +1,178 @@ |
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// Copyright 2022 The go-ethereum Authors
|
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// This file is part of the go-ethereum library.
|
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//
|
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// The go-ethereum library is free software: you can redistribute it and/or modify
|
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// it under the terms of the GNU Lesser General Public License as published by
|
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// the Free Software Foundation, either version 3 of the License, or
|
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// (at your option) any later version.
|
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//
|
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// The go-ethereum library is distributed in the hope that it will be useful,
|
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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// GNU Lesser General Public License for more details.
|
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//
|
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// You should have received a copy of the GNU Lesser General Public License
|
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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|
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// Package catalyst implements the temporary eth1/eth2 RPC integration.
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package catalyst |
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import ( |
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"errors" |
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"fmt" |
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"github.com/ethereum/go-ethereum/common" |
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"github.com/ethereum/go-ethereum/core/beacon" |
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"github.com/ethereum/go-ethereum/les" |
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"github.com/ethereum/go-ethereum/log" |
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"github.com/ethereum/go-ethereum/node" |
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"github.com/ethereum/go-ethereum/rpc" |
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) |
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// Register adds catalyst APIs to the light client.
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func Register(stack *node.Node, backend *les.LightEthereum) error { |
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log.Warn("Catalyst mode enabled", "protocol", "les") |
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stack.RegisterAPIs([]rpc.API{ |
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{ |
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Namespace: "engine", |
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Version: "1.0", |
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Service: NewConsensusAPI(backend), |
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Public: true, |
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}, |
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}) |
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return nil |
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} |
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type ConsensusAPI struct { |
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les *les.LightEthereum |
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} |
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// NewConsensusAPI creates a new consensus api for the given backend.
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// The underlying blockchain needs to have a valid terminal total difficulty set.
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func NewConsensusAPI(les *les.LightEthereum) *ConsensusAPI { |
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if les.BlockChain().Config().TerminalTotalDifficulty == nil { |
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panic("Catalyst started without valid total difficulty") |
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} |
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return &ConsensusAPI{les: les} |
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} |
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// ForkchoiceUpdatedV1 has several responsibilities:
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// If the method is called with an empty head block:
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// we return success, which can be used to check if the catalyst mode is enabled
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// If the total difficulty was not reached:
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// we return INVALID
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// If the finalizedBlockHash is set:
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// we check if we have the finalizedBlockHash in our db, if not we start a sync
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// We try to set our blockchain to the headBlock
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// If there are payloadAttributes:
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// we return an error since block creation is not supported in les mode
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func (api *ConsensusAPI) ForkchoiceUpdatedV1(heads beacon.ForkchoiceStateV1, payloadAttributes *beacon.PayloadAttributesV1) (beacon.ForkChoiceResponse, error) { |
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if heads.HeadBlockHash == (common.Hash{}) { |
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return beacon.ForkChoiceResponse{Status: beacon.SUCCESS.Status, PayloadID: nil}, nil |
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} |
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if err := api.checkTerminalTotalDifficulty(heads.HeadBlockHash); err != nil { |
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if header := api.les.BlockChain().GetHeaderByHash(heads.HeadBlockHash); header == nil { |
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// TODO (MariusVanDerWijden) trigger sync
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return beacon.SYNCING, nil |
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} |
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return beacon.INVALID, err |
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} |
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// If the finalized block is set, check if it is in our blockchain
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if heads.FinalizedBlockHash != (common.Hash{}) { |
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if header := api.les.BlockChain().GetHeaderByHash(heads.FinalizedBlockHash); header == nil { |
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// TODO (MariusVanDerWijden) trigger sync
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return beacon.SYNCING, nil |
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} |
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} |
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// SetHead
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if err := api.setHead(heads.HeadBlockHash); err != nil { |
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return beacon.INVALID, err |
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} |
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if payloadAttributes != nil { |
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return beacon.INVALID, errors.New("not supported") |
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} |
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return beacon.ForkChoiceResponse{Status: beacon.SUCCESS.Status, PayloadID: nil}, nil |
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} |
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// GetPayloadV1 returns a cached payload by id. It's not supported in les mode.
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func (api *ConsensusAPI) GetPayloadV1(payloadID beacon.PayloadID) (*beacon.ExecutableDataV1, error) { |
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return nil, &beacon.GenericServerError |
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} |
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// ExecutePayloadV1 creates an Eth1 block, inserts it in the chain, and returns the status of the chain.
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func (api *ConsensusAPI) ExecutePayloadV1(params beacon.ExecutableDataV1) (beacon.ExecutePayloadResponse, error) { |
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block, err := beacon.ExecutableDataToBlock(params) |
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if err != nil { |
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return api.invalid(), err |
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} |
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if !api.les.BlockChain().HasHeader(block.ParentHash(), block.NumberU64()-1) { |
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/* |
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TODO (MariusVanDerWijden) reenable once sync is merged |
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if err := api.eth.Downloader().BeaconSync(api.eth.SyncMode(), block.Header()); err != nil { |
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return SYNCING, err |
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} |
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*/ |
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// TODO (MariusVanDerWijden) we should return nil here not empty hash
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return beacon.ExecutePayloadResponse{Status: beacon.SYNCING.Status, LatestValidHash: common.Hash{}}, nil |
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} |
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parent := api.les.BlockChain().GetHeaderByHash(params.ParentHash) |
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if parent == nil { |
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return api.invalid(), fmt.Errorf("could not find parent %x", params.ParentHash) |
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} |
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td := api.les.BlockChain().GetTd(parent.Hash(), block.NumberU64()-1) |
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ttd := api.les.BlockChain().Config().TerminalTotalDifficulty |
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if td.Cmp(ttd) < 0 { |
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return api.invalid(), fmt.Errorf("can not execute payload on top of block with low td got: %v threshold %v", td, ttd) |
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} |
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if err = api.les.BlockChain().InsertHeader(block.Header()); err != nil { |
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return api.invalid(), err |
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} |
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if merger := api.les.Merger(); !merger.TDDReached() { |
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merger.ReachTTD() |
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} |
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return beacon.ExecutePayloadResponse{Status: beacon.VALID.Status, LatestValidHash: block.Hash()}, nil |
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} |
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// invalid returns a response "INVALID" with the latest valid hash set to the current head.
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func (api *ConsensusAPI) invalid() beacon.ExecutePayloadResponse { |
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return beacon.ExecutePayloadResponse{Status: beacon.INVALID.Status, LatestValidHash: api.les.BlockChain().CurrentHeader().Hash()} |
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} |
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func (api *ConsensusAPI) checkTerminalTotalDifficulty(head common.Hash) error { |
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// shortcut if we entered PoS already
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if api.les.Merger().PoSFinalized() { |
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return nil |
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} |
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// make sure the parent has enough terminal total difficulty
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header := api.les.BlockChain().GetHeaderByHash(head) |
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if header == nil { |
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return &beacon.GenericServerError |
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} |
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td := api.les.BlockChain().GetTd(header.Hash(), header.Number.Uint64()) |
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if td != nil && td.Cmp(api.les.BlockChain().Config().TerminalTotalDifficulty) < 0 { |
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return &beacon.InvalidTB |
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} |
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return nil |
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} |
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// setHead is called to perform a force choice.
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func (api *ConsensusAPI) setHead(newHead common.Hash) error { |
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log.Info("Setting head", "head", newHead) |
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headHeader := api.les.BlockChain().CurrentHeader() |
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if headHeader.Hash() == newHead { |
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return nil |
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} |
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newHeadHeader := api.les.BlockChain().GetHeaderByHash(newHead) |
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if newHeadHeader == nil { |
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return &beacon.GenericServerError |
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} |
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if err := api.les.BlockChain().SetChainHead(newHeadHeader); err != nil { |
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return err |
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} |
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// Trigger the transition if it's the first `NewHead` event.
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if merger := api.les.Merger(); !merger.PoSFinalized() { |
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merger.FinalizePoS() |
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} |
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return nil |
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} |
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@ -0,0 +1,244 @@ |
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// Copyright 2020 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
|
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// it under the terms of the GNU Lesser General Public License as published by
|
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// the Free Software Foundation, either version 3 of the License, or
|
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// (at your option) any later version.
|
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//
|
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// The go-ethereum library is distributed in the hope that it will be useful,
|
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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// GNU Lesser General Public License for more details.
|
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//
|
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package catalyst |
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import ( |
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"math/big" |
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"testing" |
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"github.com/ethereum/go-ethereum/common" |
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"github.com/ethereum/go-ethereum/consensus/ethash" |
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"github.com/ethereum/go-ethereum/core" |
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"github.com/ethereum/go-ethereum/core/beacon" |
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"github.com/ethereum/go-ethereum/core/rawdb" |
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"github.com/ethereum/go-ethereum/core/types" |
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"github.com/ethereum/go-ethereum/crypto" |
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"github.com/ethereum/go-ethereum/eth/downloader" |
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"github.com/ethereum/go-ethereum/eth/ethconfig" |
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"github.com/ethereum/go-ethereum/les" |
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"github.com/ethereum/go-ethereum/node" |
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"github.com/ethereum/go-ethereum/params" |
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"github.com/ethereum/go-ethereum/trie" |
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) |
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var ( |
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// testKey is a private key to use for funding a tester account.
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testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") |
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// testAddr is the Ethereum address of the tester account.
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testAddr = crypto.PubkeyToAddress(testKey.PublicKey) |
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testBalance = big.NewInt(2e18) |
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) |
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func generatePreMergeChain(n int) (*core.Genesis, []*types.Header, []*types.Block) { |
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db := rawdb.NewMemoryDatabase() |
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config := params.AllEthashProtocolChanges |
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genesis := &core.Genesis{ |
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Config: config, |
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Alloc: core.GenesisAlloc{testAddr: {Balance: testBalance}}, |
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ExtraData: []byte("test genesis"), |
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Timestamp: 9000, |
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BaseFee: big.NewInt(params.InitialBaseFee), |
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} |
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gblock := genesis.ToBlock(db) |
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engine := ethash.NewFaker() |
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blocks, _ := core.GenerateChain(config, gblock, engine, db, n, nil) |
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totalDifficulty := big.NewInt(0) |
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var headers []*types.Header |
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for _, b := range blocks { |
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totalDifficulty.Add(totalDifficulty, b.Difficulty()) |
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headers = append(headers, b.Header()) |
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} |
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config.TerminalTotalDifficulty = totalDifficulty |
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return genesis, headers, blocks |
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} |
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func TestSetHeadBeforeTotalDifficulty(t *testing.T) { |
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genesis, headers, blocks := generatePreMergeChain(10) |
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n, lesService := startLesService(t, genesis, headers) |
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defer n.Close() |
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api := NewConsensusAPI(lesService) |
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fcState := beacon.ForkchoiceStateV1{ |
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HeadBlockHash: blocks[5].Hash(), |
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SafeBlockHash: common.Hash{}, |
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FinalizedBlockHash: common.Hash{}, |
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} |
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if _, err := api.ForkchoiceUpdatedV1(fcState, nil); err == nil { |
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t.Errorf("fork choice updated before total terminal difficulty should fail") |
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} |
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} |
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func TestExecutePayloadV1(t *testing.T) { |
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genesis, headers, blocks := generatePreMergeChain(10) |
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n, lesService := startLesService(t, genesis, headers[:9]) |
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lesService.Merger().ReachTTD() |
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defer n.Close() |
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api := NewConsensusAPI(lesService) |
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fcState := beacon.ForkchoiceStateV1{ |
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HeadBlockHash: blocks[8].Hash(), |
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SafeBlockHash: common.Hash{}, |
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FinalizedBlockHash: common.Hash{}, |
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} |
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if _, err := api.ForkchoiceUpdatedV1(fcState, nil); err != nil { |
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t.Errorf("Failed to update head %v", err) |
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} |
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block := blocks[9] |
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fakeBlock := types.NewBlock(&types.Header{ |
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ParentHash: block.ParentHash(), |
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UncleHash: crypto.Keccak256Hash(nil), |
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Coinbase: block.Coinbase(), |
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Root: block.Root(), |
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TxHash: crypto.Keccak256Hash(nil), |
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ReceiptHash: crypto.Keccak256Hash(nil), |
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Bloom: block.Bloom(), |
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Difficulty: big.NewInt(0), |
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Number: block.Number(), |
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GasLimit: block.GasLimit(), |
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GasUsed: block.GasUsed(), |
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Time: block.Time(), |
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Extra: block.Extra(), |
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MixDigest: block.MixDigest(), |
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Nonce: types.BlockNonce{}, |
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BaseFee: block.BaseFee(), |
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}, nil, nil, nil, trie.NewStackTrie(nil)) |
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_, err := api.ExecutePayloadV1(beacon.ExecutableDataV1{ |
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ParentHash: fakeBlock.ParentHash(), |
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FeeRecipient: fakeBlock.Coinbase(), |
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StateRoot: fakeBlock.Root(), |
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ReceiptsRoot: fakeBlock.ReceiptHash(), |
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LogsBloom: fakeBlock.Bloom().Bytes(), |
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Random: fakeBlock.MixDigest(), |
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Number: fakeBlock.NumberU64(), |
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GasLimit: fakeBlock.GasLimit(), |
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GasUsed: fakeBlock.GasUsed(), |
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Timestamp: fakeBlock.Time(), |
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ExtraData: fakeBlock.Extra(), |
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BaseFeePerGas: fakeBlock.BaseFee(), |
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BlockHash: fakeBlock.Hash(), |
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Transactions: encodeTransactions(fakeBlock.Transactions()), |
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}) |
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if err != nil { |
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t.Errorf("Failed to execute payload %v", err) |
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} |
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headHeader := api.les.BlockChain().CurrentHeader() |
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if headHeader.Number.Uint64() != fakeBlock.NumberU64()-1 { |
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t.Fatal("Unexpected chain head update") |
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} |
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fcState = beacon.ForkchoiceStateV1{ |
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HeadBlockHash: fakeBlock.Hash(), |
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SafeBlockHash: common.Hash{}, |
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FinalizedBlockHash: common.Hash{}, |
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} |
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if _, err := api.ForkchoiceUpdatedV1(fcState, nil); err != nil { |
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t.Fatal("Failed to update head") |
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} |
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headHeader = api.les.BlockChain().CurrentHeader() |
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if headHeader.Number.Uint64() != fakeBlock.NumberU64() { |
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t.Fatal("Failed to update chain head") |
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} |
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} |
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func TestEth2DeepReorg(t *testing.T) { |
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// TODO (MariusVanDerWijden) TestEth2DeepReorg is currently broken, because it tries to reorg
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// before the totalTerminalDifficulty threshold
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/* |
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genesis, preMergeBlocks := generatePreMergeChain(core.TriesInMemory * 2) |
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n, ethservice := startEthService(t, genesis, preMergeBlocks) |
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defer n.Close() |
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var ( |
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api = NewConsensusAPI(ethservice, nil) |
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parent = preMergeBlocks[len(preMergeBlocks)-core.TriesInMemory-1] |
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head = ethservice.BlockChain().CurrentBlock().NumberU64() |
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) |
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if ethservice.BlockChain().HasBlockAndState(parent.Hash(), parent.NumberU64()) { |
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t.Errorf("Block %d not pruned", parent.NumberU64()) |
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} |
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for i := 0; i < 10; i++ { |
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execData, err := api.assembleBlock(AssembleBlockParams{ |
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ParentHash: parent.Hash(), |
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Timestamp: parent.Time() + 5, |
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}) |
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if err != nil { |
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t.Fatalf("Failed to create the executable data %v", err) |
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} |
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block, err := ExecutableDataToBlock(ethservice.BlockChain().Config(), parent.Header(), *execData) |
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if err != nil { |
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t.Fatalf("Failed to convert executable data to block %v", err) |
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} |
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newResp, err := api.ExecutePayload(*execData) |
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if err != nil || newResp.Status != "VALID" { |
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t.Fatalf("Failed to insert block: %v", err) |
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} |
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if ethservice.BlockChain().CurrentBlock().NumberU64() != head { |
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t.Fatalf("Chain head shouldn't be updated") |
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} |
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if err := api.setHead(block.Hash()); err != nil { |
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t.Fatalf("Failed to set head: %v", err) |
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} |
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if ethservice.BlockChain().CurrentBlock().NumberU64() != block.NumberU64() { |
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t.Fatalf("Chain head should be updated") |
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} |
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parent, head = block, block.NumberU64() |
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} |
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*/ |
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} |
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|
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// startEthService creates a full node instance for testing.
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func startLesService(t *testing.T, genesis *core.Genesis, headers []*types.Header) (*node.Node, *les.LightEthereum) { |
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t.Helper() |
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|
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n, err := node.New(&node.Config{}) |
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if err != nil { |
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t.Fatal("can't create node:", err) |
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} |
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ethcfg := ðconfig.Config{ |
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Genesis: genesis, |
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Ethash: ethash.Config{PowMode: ethash.ModeFake}, |
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SyncMode: downloader.LightSync, |
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TrieDirtyCache: 256, |
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TrieCleanCache: 256, |
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LightPeers: 10, |
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} |
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lesService, err := les.New(n, ethcfg) |
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if err != nil { |
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t.Fatal("can't create eth service:", err) |
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} |
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if err := n.Start(); err != nil { |
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t.Fatal("can't start node:", err) |
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} |
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if _, err := lesService.BlockChain().InsertHeaderChain(headers, 0); err != nil { |
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n.Close() |
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t.Fatal("can't import test headers:", err) |
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} |
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return n, lesService |
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} |
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|
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func encodeTransactions(txs []*types.Transaction) [][]byte { |
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var enc = make([][]byte, len(txs)) |
||||
for i, tx := range txs { |
||||
enc[i], _ = tx.MarshalBinary() |
||||
} |
||||
return enc |
||||
} |
||||
Loading…
Reference in new issue