github: upgrade upload artifact from v4.1.7 to v4.3.3 (#2713)

upload-artifact and download-artifact must use same version, otherwise
release workflow will fail.
https://github.com/actions/toolkit/blob/main/packages/artifact/docs/faq.md

.github/workflows/pre-release.yml

@@ -82,28 +82,28 @@ jobs:
       # ==============================
 
       - name: Upload Linux Build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.3.3
         if: matrix.os == 'ubuntu-latest'
         with:
           name: linux
           path: ./build/bin/geth
 
       - name: Upload MacOS Build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.3.3
         if: matrix.os == 'macos-latest'
         with:
           name: macos
           path: ./build/bin/geth
       
       - name: Upload Windows Build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.3.3
         if: matrix.os == 'windows-latest'
         with:
           name: windows
           path: ./build/bin/geth.exe
 
       - name: Upload ARM-64 Build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.3.3
         if: matrix.os == 'ubuntu-latest'
         with:
           name: arm64
@@ -125,25 +125,25 @@ jobs:
       # ==============================
 
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: linux
           path: ./linux
       
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: macos
           path: ./macos
       
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: windows
           path: ./windows
       
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: arm64
           path: ./arm64

.github/workflows/release.yml

@@ -81,28 +81,28 @@ jobs:
       # ==============================
 
       - name: Upload Linux Build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.3.3
         if: matrix.os == 'ubuntu-latest'
         with:
           name: linux
           path: ./build/bin/geth
 
       - name: Upload MacOS Build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.3.3
         if: matrix.os == 'macos-latest'
         with:
           name: macos
           path: ./build/bin/geth
       
       - name: Upload Windows Build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.3.3
         if: matrix.os == 'windows-latest'
         with:
           name: windows
           path: ./build/bin/geth.exe
 
       - name: Upload ARM-64 Build
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4.3.3
         if: matrix.os == 'ubuntu-latest'
         with:
           name: arm64
@@ -124,25 +124,25 @@ jobs:
       # ==============================
 
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: linux
           path: ./linux
       
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: macos
           path: ./macos
       
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: windows
           path: ./windows
       
       - name: Download Artifacts
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4.1.7
         with:
           name: arm64
           path: ./arm64

.nancy-ignore

@@ -1,2 +1,3 @@
 CVE-2024-34478 # "CWE-754: Improper Check for Unusual or Exceptional Conditions." This vulnerability is BTC only, BSC does not have the issue.
 CVE-2024-6104 # "CWE-532: Information Exposure Through Log Files" This is caused by the vulnerabilities go-retryablehttp@v0.7.4, it is only used in cmd devp2p, impact is limited. will upgrade to v0.7.7 later
+CVE-2024-8421 # "CWE-400: Uncontrolled Resource Consumption (Resource Exhaustion)" This vulnerability is caused by issues in the golang.org/x/net package. Even the latest version(v0.29.0) has not yet addressed it, but we will continue to monitor updates closely.

CHANGELOG.md

@@ -1,4 +1,43 @@
 # Changelog
+## v1.4.15
+### BUGFIX
+* [\#2680](https://github.com/bnb-chain/bsc/pull/2680) txpool: apply miner's gasceil to txpool
+* [\#2688](https://github.com/bnb-chain/bsc/pull/2688) txpool: set default GasCeil from 30M to 0
+* [\#2696](https://github.com/bnb-chain/bsc/pull/2696) miner: limit block size to eth protocol msg size
+* [\#2684](https://github.com/bnb-chain/bsc/pull/2684) eth: Add sidecars when available to broadcasted current block
+
+### FEATURE
+* [\#2672](https://github.com/bnb-chain/bsc/pull/2672) faucet: with mainnet balance check, 0.002BNB at least
+* [\#2678](https://github.com/bnb-chain/bsc/pull/2678) beaconserver: simulated beacon api server for op-stack
+* [\#2687](https://github.com/bnb-chain/bsc/pull/2687) faucet: support customized token
+* [\#2698](https://github.com/bnb-chain/bsc/pull/2698) faucet: add example for custimized token
+* [\#2706](https://github.com/bnb-chain/bsc/pull/2706) faucet: update DIN token faucet support
+
+### IMPROVEMENT
+* [\#2677](https://github.com/bnb-chain/bsc/pull/2677) log: add some p2p log
+* [\#2679](https://github.com/bnb-chain/bsc/pull/2679) build(deps): bump actions/download-artifact in /.github/workflows
+* [\#2662](https://github.com/bnb-chain/bsc/pull/2662) metrics: add some extra feature flags as node stats
+* [\#2675](https://github.com/bnb-chain/bsc/pull/2675) fetcher: Sleep after marking block as done when requeuing
+* [\#2695](https://github.com/bnb-chain/bsc/pull/2695) CI: nancy ignore CVE-2024-8421
+* [\#2689](https://github.com/bnb-chain/bsc/pull/2689) consensus/parlia: wait more time when processing huge blocks
+
+## v1.4.14
+
+### BUGFIX
+* [\#2643](https://github.com/bnb-chain/bsc/pull/2643)core: fix cache for receipts
+* [\#2656](https://github.com/bnb-chain/bsc/pull/2656)ethclient: fix BlobSidecars api
+* [\#2657](https://github.com/bnb-chain/bsc/pull/2657)fix: update prunefreezer’s offset when pruneancient and the dataset has pruned block
+
+### FEATURE
+* [\#2661](https://github.com/bnb-chain/bsc/pull/2661)config: setup Mainnet 2 hardfork date: HaberFix & Bohr
+
+### IMPROVEMENT
+* [\#2578](https://github.com/bnb-chain/bsc/pull/2578)core/systemcontracts: use vm.StateDB in UpgradeBuildInSystemContract
+* [\#2649](https://github.com/bnb-chain/bsc/pull/2649)internal/debug: remove memsize
+* [\#2655](https://github.com/bnb-chain/bsc/pull/2655)internal/ethapi: make GetFinalizedHeader monotonically increasing
+* [\#2658](https://github.com/bnb-chain/bsc/pull/2658)core: improve readability of the fork choice logic
+* [\#2665](https://github.com/bnb-chain/bsc/pull/2665)faucet: bump and resend faucet transaction if it has been pending for a while
+
 ## v1.4.13
 
 ### BUGFIX

Makefile

@@ -17,6 +17,11 @@ geth:
 	@echo "Done building."
 	@echo "Run \"$(GOBIN)/geth\" to launch geth."
 
+#? faucet: Build faucet
+faucet:
+	$(GORUN) build/ci.go install ./cmd/faucet
+	@echo "Done building faucet"
+
 #? all: Build all packages and executables
 all:
 	$(GORUN) build/ci.go install

README.md

@@ -9,16 +9,15 @@ https://pkg.go.dev/badge/github.com/ethereum/go-ethereum
 )](https://pkg.go.dev/github.com/ethereum/go-ethereum?tab=doc)
 [![Discord](https://img.shields.io/badge/discord-join%20chat-blue.svg)](https://discord.gg/z2VpC455eU)
 
-But from that baseline of EVM compatible, BNB Smart Chain introduces  a system of 21 validators with Proof of Staked Authority (PoSA) consensus that can support short block time and lower fees. The most bonded validator candidates of staking will become validators and produce blocks. The double-sign detection and other slashing logic guarantee security, stability, and chain finality.
+But from that baseline of EVM compatible, BNB Smart Chain introduces a system of 21 validators with Proof of Staked Authority (PoSA) consensus that can support short block time and lower fees. The most bonded validator candidates of staking will become validators and produce blocks. The double-sign detection and other slashing logic guarantee security, stability, and chain finality.
 
-Cross-chain transfer and other communication are possible due to native support of interoperability. Relayers and on-chain contracts are developed to support that. BNB Beacon Chain DEX remains a liquid venue of the exchange of assets on both chains. This dual-chain architecture will be ideal for users to take advantage of the fast trading on one side and build their decentralized apps on the other side. **The BNB Smart Chain** will be:
+**The BNB Smart Chain** will be:
 
 - **A self-sovereign blockchain**: Provides security and safety with elected validators.
 - **EVM-compatible**: Supports all the existing Ethereum tooling along with faster finality and cheaper transaction fees.
-- **Interoperable**: Comes with efficient native dual chain communication; Optimized for scaling high-performance dApps that require fast and smooth user experience.
 - **Distributed with on-chain governance**: Proof of Staked Authority brings in decentralization and community participants. As the native token, BNB will serve as both the gas of smart contract execution and tokens for staking.
 
-More details in [White Paper](https://www.bnbchain.org/en#smartChain).
+More details in [White Paper](https://github.com/bnb-chain/whitepaper/blob/master/WHITEPAPER.md).
 
 ## Key features
 
@@ -34,18 +33,8 @@ To combine DPoS and PoA for consensus, BNB Smart Chain implement a novel consens
 
 1. Blocks are produced by a limited set of validators.
 2. Validators take turns to produce blocks in a PoA manner, similar to Ethereum's Clique consensus engine.
-3. Validator set are elected in and out based on a staking based governance on BNB Beacon Chain.
-4. The validator set change is relayed via a cross-chain communication mechanism.
-5. Parlia consensus engine will interact with a set of [system contracts](https://docs.bnbchain.org/bnb-smart-chain/staking/overview/#system-contracts) to achieve liveness slash, revenue distributing and validator set renewing func.
-
- 
-### Light Client of BNB Beacon Chain
-
-To achieve the cross-chain communication from BNB Beacon Chain to BNB Smart Chain, need introduce a on-chain light client verification algorithm.
-It contains two parts:
-
-1. [Stateless Precompiled contracts](https://github.com/bnb-chain/bsc/blob/master/core/vm/contracts_lightclient.go) to do tendermint header verification and Merkle Proof verification.
-2. [Stateful solidity contracts](https://github.com/bnb-chain/bsc-genesis-contract/blob/master/contracts/TendermintLightClient.sol) to store validator set and trusted appHash.  
+3. Validator set are elected in and out based on a staking based governance on BNB Smart Chain.
+4. Parlia consensus engine will interact with a set of [system contracts](https://docs.bnbchain.org/bnb-smart-chain/staking/overview/#system-contracts) to achieve liveness slash, revenue distributing and validator set renewing func.
 
 ## Native Token
 
@@ -53,7 +42,6 @@ BNB will run on BNB Smart Chain in the same way as ETH runs on Ethereum so that
 BNB will be used to:
 
 1. pay `gas` to deploy or invoke Smart Contract on BSC
-2. perform cross-chain operations, such as transfer token assets across BNB Smart Chain and BNB Beacon Chain.
 
 ## Building the source
 
@@ -247,9 +235,7 @@ running web servers, so malicious web pages could try to subvert locally availab
 APIs!**
 
 ### Operating a private network
-- [BSC-Deploy](https://github.com/bnb-chain/node-deploy/): deploy tool for setting up both BNB Beacon Chain, BNB Smart Chain and the cross chain infrastructure between them.
-- [BSC-Docker](https://github.com/bnb-chain/bsc-docker): deploy tool for setting up local BSC cluster in container.
-
+- [BSC-Deploy](https://github.com/bnb-chain/node-deploy/): deploy tool for setting up BNB Smart Chain.
 
 ## Running a bootnode
 

beacon/fakebeacon/api_func.go

@@ -0,0 +1,87 @@
+package fakebeacon
+
+import (
+	"context"
+	"sort"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto/kzg4844"
+	"github.com/ethereum/go-ethereum/internal/ethapi"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/rpc"
+)
+
+type BlobSidecar struct {
+	Blob          kzg4844.Blob       `json:"blob"`
+	Index         int                `json:"index"`
+	KZGCommitment kzg4844.Commitment `json:"kzg_commitment"`
+	KZGProof      kzg4844.Proof      `json:"kzg_proof"`
+}
+
+type APIGetBlobSidecarsResponse struct {
+	Data []*BlobSidecar `json:"data"`
+}
+
+type ReducedGenesisData struct {
+	GenesisTime string `json:"genesis_time"`
+}
+
+type APIGenesisResponse struct {
+	Data ReducedGenesisData `json:"data"`
+}
+
+type ReducedConfigData struct {
+	SecondsPerSlot string `json:"SECONDS_PER_SLOT"`
+}
+
+type IndexedBlobHash struct {
+	Index int         // absolute index in the block, a.k.a. position in sidecar blobs array
+	Hash  common.Hash // hash of the blob, used for consistency checks
+}
+
+func configSpec() ReducedConfigData {
+	return ReducedConfigData{SecondsPerSlot: "1"}
+}
+
+func beaconGenesis() APIGenesisResponse {
+	return APIGenesisResponse{Data: ReducedGenesisData{GenesisTime: "0"}}
+}
+
+func beaconBlobSidecars(ctx context.Context, backend ethapi.Backend, slot uint64, indices []int) (APIGetBlobSidecarsResponse, error) {
+	var blockNrOrHash rpc.BlockNumberOrHash
+	header, err := fetchBlockNumberByTime(ctx, int64(slot), backend)
+	if err != nil {
+		log.Error("Error fetching block number", "slot", slot, "indices", indices)
+		return APIGetBlobSidecarsResponse{}, err
+	}
+	sideCars, err := backend.GetBlobSidecars(ctx, header.Hash())
+	if err != nil {
+		log.Error("Error fetching Sidecars", "blockNrOrHash", blockNrOrHash, "err", err)
+		return APIGetBlobSidecarsResponse{}, err
+	}
+	sort.Ints(indices)
+	fullBlob := len(indices) == 0
+	res := APIGetBlobSidecarsResponse{}
+	idx := 0
+	curIdx := 0
+	for _, sideCar := range sideCars {
+		for i := 0; i < len(sideCar.Blobs); i++ {
+			//hash := kZGToVersionedHash(sideCar.Commitments[i])
+			if !fullBlob && curIdx >= len(indices) {
+				break
+			}
+			if fullBlob || idx == indices[curIdx] {
+				res.Data = append(res.Data, &BlobSidecar{
+					Index:         idx,
+					Blob:          sideCar.Blobs[i],
+					KZGCommitment: sideCar.Commitments[i],
+					KZGProof:      sideCar.Proofs[i],
+				})
+				curIdx++
+			}
+			idx++
+		}
+	}
+
+	return res, nil
+}

beacon/fakebeacon/handlers.go

@@ -0,0 +1,88 @@
+package fakebeacon
+
+import (
+	"fmt"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"github.com/prysmaticlabs/prysm/v5/api/server/structs"
+	field_params "github.com/prysmaticlabs/prysm/v5/config/fieldparams"
+	"github.com/prysmaticlabs/prysm/v5/network/httputil"
+)
+
+var (
+	versionMethod        = "/eth/v1/node/version"
+	specMethod           = "/eth/v1/config/spec"
+	genesisMethod        = "/eth/v1/beacon/genesis"
+	sidecarsMethodPrefix = "/eth/v1/beacon/blob_sidecars/{slot}"
+)
+
+func VersionMethod(w http.ResponseWriter, r *http.Request) {
+	resp := &structs.GetVersionResponse{
+		Data: &structs.Version{
+			Version: "",
+		},
+	}
+	httputil.WriteJson(w, resp)
+}
+
+func SpecMethod(w http.ResponseWriter, r *http.Request) {
+	httputil.WriteJson(w, &structs.GetSpecResponse{Data: configSpec()})
+}
+
+func GenesisMethod(w http.ResponseWriter, r *http.Request) {
+	httputil.WriteJson(w, beaconGenesis())
+}
+
+func (s *Service) SidecarsMethod(w http.ResponseWriter, r *http.Request) {
+	indices, err := parseIndices(r.URL)
+	if err != nil {
+		httputil.HandleError(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	segments := strings.Split(r.URL.Path, "/")
+	slot, err := strconv.ParseUint(segments[len(segments)-1], 10, 64)
+	if err != nil {
+		httputil.HandleError(w, "not a valid slot(timestamp)", http.StatusBadRequest)
+		return
+	}
+
+	resp, err := beaconBlobSidecars(r.Context(), s.backend, slot, indices)
+	if err != nil {
+		httputil.HandleError(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	httputil.WriteJson(w, resp)
+}
+
+// parseIndices filters out invalid and duplicate blob indices
+func parseIndices(url *url.URL) ([]int, error) {
+	rawIndices := url.Query()["indices"]
+	indices := make([]int, 0, field_params.MaxBlobsPerBlock)
+	invalidIndices := make([]string, 0)
+loop:
+	for _, raw := range rawIndices {
+		ix, err := strconv.Atoi(raw)
+		if err != nil {
+			invalidIndices = append(invalidIndices, raw)
+			continue
+		}
+		if ix >= field_params.MaxBlobsPerBlock {
+			invalidIndices = append(invalidIndices, raw)
+			continue
+		}
+		for i := range indices {
+			if ix == indices[i] {
+				continue loop
+			}
+		}
+		indices = append(indices, ix)
+	}
+
+	if len(invalidIndices) > 0 {
+		return nil, fmt.Errorf("requested blob indices %v are invalid", invalidIndices)
+	}
+	return indices, nil
+}

beacon/fakebeacon/server.go

@@ -0,0 +1,97 @@
+package fakebeacon
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/ethereum/go-ethereum/internal/ethapi"
+	"github.com/gorilla/mux"
+	"github.com/prysmaticlabs/prysm/v5/api/server"
+)
+
+const (
+	DefaultAddr = "localhost"
+	DefaultPort = 8686
+)
+
+type Config struct {
+	Enable bool
+	Addr   string
+	Port   int
+}
+
+func defaultConfig() *Config {
+	return &Config{
+		Enable: false,
+		Addr:   DefaultAddr,
+		Port:   DefaultPort,
+	}
+}
+
+type Service struct {
+	cfg     *Config
+	router  *mux.Router
+	backend ethapi.Backend
+}
+
+func NewService(cfg *Config, backend ethapi.Backend) *Service {
+	cfgs := defaultConfig()
+	if cfg.Addr != "" {
+		cfgs.Addr = cfg.Addr
+	}
+	if cfg.Port > 0 {
+		cfgs.Port = cfg.Port
+	}
+
+	s := &Service{
+		cfg:     cfgs,
+		backend: backend,
+	}
+	router := s.newRouter()
+	s.router = router
+	return s
+}
+
+func (s *Service) Run() {
+	_ = http.ListenAndServe(s.cfg.Addr+":"+strconv.Itoa(s.cfg.Port), s.router)
+}
+
+func (s *Service) newRouter() *mux.Router {
+	r := mux.NewRouter()
+	r.Use(server.NormalizeQueryValuesHandler)
+	for _, e := range s.endpoints() {
+		r.HandleFunc(e.path, e.handler).Methods(e.methods...)
+	}
+	return r
+}
+
+type endpoint struct {
+	path    string
+	handler http.HandlerFunc
+	methods []string
+}
+
+func (s *Service) endpoints() []endpoint {
+	return []endpoint{
+		{
+			path:    versionMethod,
+			handler: VersionMethod,
+			methods: []string{http.MethodGet},
+		},
+		{
+			path:    specMethod,
+			handler: SpecMethod,
+			methods: []string{http.MethodGet},
+		},
+		{
+			path:    genesisMethod,
+			handler: GenesisMethod,
+			methods: []string{http.MethodGet},
+		},
+		{
+			path:    sidecarsMethodPrefix,
+			handler: s.SidecarsMethod,
+			methods: []string{http.MethodGet},
+		},
+	}
+}

beacon/fakebeacon/server_test.go

@@ -0,0 +1,90 @@
+package fakebeacon
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+//
+//func TestFetchBlockNumberByTime(t *testing.T) {
+//	blockNum, err := fetchBlockNumberByTime(context.Background(), 1724052941, client)
+//	assert.Nil(t, err)
+//	assert.Equal(t, uint64(41493946), blockNum)
+//
+//	blockNum, err = fetchBlockNumberByTime(context.Background(), 1734052941, client)
+//	assert.Equal(t, err, errors.New("time too large"))
+//
+//	blockNum, err = fetchBlockNumberByTime(context.Background(), 1600153618, client)
+//	assert.Nil(t, err)
+//	assert.Equal(t, uint64(493946), blockNum)
+//}
+//
+//func TestBeaconBlobSidecars(t *testing.T) {
+//	indexBlobHash := []IndexedBlobHash{
+//		{Hash: common.HexToHash("0x01231952ecbaede62f8d0398b656072c072db36982c9ef106fbbc39ce14f983c"), Index: 0},
+//		{Hash: common.HexToHash("0x012c21a8284d2d707bb5318e874d2e1b97a53d028e96abb702b284a2cbb0f79c"), Index: 1},
+//		{Hash: common.HexToHash("0x011196c8d02536ede0382aa6e9fdba6c460169c0711b5f97fcd701bd8997aee3"), Index: 2},
+//		{Hash: common.HexToHash("0x019c86b46b27401fb978fd175d1eb7dadf4976d6919501b0c5280d13a5bab57b"), Index: 3},
+//		{Hash: common.HexToHash("0x01e00db7ee99176b3fd50aab45b4fae953292334bbf013707aac58c455d98596"), Index: 4},
+//		{Hash: common.HexToHash("0x0117d23b68123d578a98b3e1aa029661e0abda821a98444c21992eb1e5b7208f"), Index: 5},
+//		//{Hash: common.HexToHash("0x01e00db7ee99176b3fd50aab45b4fae953292334bbf013707aac58c455d98596"), Index: 1},
+//	}
+//
+//	resp, err := beaconBlobSidecars(context.Background(), 1724055046, []int{0, 1, 2, 3, 4, 5}) // block: 41494647
+//	assert.Nil(t, err)
+//	assert.NotNil(t, resp)
+//	assert.NotEmpty(t, resp.Data)
+//	for i, sideCar := range resp.Data {
+//		assert.Equal(t, indexBlobHash[i].Index, sideCar.Index)
+//		assert.Equal(t, indexBlobHash[i].Hash, kZGToVersionedHash(sideCar.KZGCommitment))
+//	}
+//
+//	apiscs := make([]*BlobSidecar, 0, len(indexBlobHash))
+//	// filter and order by hashes
+//	for _, h := range indexBlobHash {
+//		for _, apisc := range resp.Data {
+//			if h.Index == int(apisc.Index) {
+//				apiscs = append(apiscs, apisc)
+//				break
+//			}
+//		}
+//	}
+//
+//	assert.Equal(t, len(apiscs), len(resp.Data))
+//	assert.Equal(t, len(apiscs), len(indexBlobHash))
+//}
+
+type TimeToSlotFn func(timestamp uint64) (uint64, error)
+
+// GetTimeToSlotFn returns a function that converts a timestamp to a slot number.
+func GetTimeToSlotFn(ctx context.Context) (TimeToSlotFn, error) {
+	genesis := beaconGenesis()
+	config := configSpec()
+
+	genesisTime, _ := strconv.ParseUint(genesis.Data.GenesisTime, 10, 64)
+	secondsPerSlot, _ := strconv.ParseUint(config.SecondsPerSlot, 10, 64)
+	if secondsPerSlot == 0 {
+		return nil, fmt.Errorf("got bad value for seconds per slot: %v", config.SecondsPerSlot)
+	}
+	timeToSlotFn := func(timestamp uint64) (uint64, error) {
+		if timestamp < genesisTime {
+			return 0, fmt.Errorf("provided timestamp (%v) precedes genesis time (%v)", timestamp, genesisTime)
+		}
+		return (timestamp - genesisTime) / secondsPerSlot, nil
+	}
+	return timeToSlotFn, nil
+}
+
+func TestAPI(t *testing.T) {
+	slotFn, err := GetTimeToSlotFn(context.Background())
+	assert.Nil(t, err)
+
+	expTx := uint64(123151345)
+	gotTx, err := slotFn(expTx)
+	assert.Nil(t, err)
+	assert.Equal(t, expTx, gotTx)
+}

beacon/fakebeacon/utils.go

@@ -0,0 +1,65 @@
+package fakebeacon
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"math/rand"
+	"time"
+
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/internal/ethapi"
+	"github.com/ethereum/go-ethereum/rpc"
+)
+
+func fetchBlockNumberByTime(ctx context.Context, ts int64, backend ethapi.Backend) (*types.Header, error) {
+	// calc the block number of the ts.
+	currentHeader := backend.CurrentHeader()
+	blockTime := int64(currentHeader.Time)
+	if ts > blockTime {
+		return nil, errors.New("time too large")
+	}
+	blockNum := currentHeader.Number.Uint64()
+	estimateEndNumber := int64(blockNum) - (blockTime-ts)/3
+	// find the end number
+	for {
+		header, err := backend.HeaderByNumber(ctx, rpc.BlockNumber(estimateEndNumber))
+		if err != nil {
+			time.Sleep(time.Duration(rand.Int()%180) * time.Millisecond)
+			continue
+		}
+		if header == nil {
+			estimateEndNumber -= 1
+			time.Sleep(time.Duration(rand.Int()%180) * time.Millisecond)
+			continue
+		}
+		headerTime := int64(header.Time)
+		if headerTime == ts {
+			return header, nil
+		}
+
+		// let the estimateEndNumber a little bigger than real value
+		if headerTime > ts+8 {
+			estimateEndNumber -= (headerTime - ts) / 3
+		} else if headerTime < ts {
+			estimateEndNumber += (ts-headerTime)/3 + 1
+		} else {
+			// search one by one
+			for headerTime >= ts {
+				header, err = backend.HeaderByNumber(ctx, rpc.BlockNumber(estimateEndNumber-1))
+				if err != nil {
+					time.Sleep(time.Duration(rand.Int()%180) * time.Millisecond)
+					continue
+				}
+				headerTime = int64(header.Time)
+				if headerTime == ts {
+					return header, nil
+				}
+				estimateEndNumber -= 1
+				if headerTime < ts { //found the real endNumber
+					return nil, fmt.Errorf("block not found by time %d", ts)
+				}
+			}
+		}
+	}
+}

cmd/faucet/customized/README.md

@@ -0,0 +1,23 @@
+# 1.Background
+This is to support some projects with customized tokens that they want to integrate into the BSC faucet tool.
+
+## 1.1. How to Integrate Your Token
+- Step 1: Fund the faucet address by sending a specific amount of your BEP-20 token to the faucet address (0xaa25aa7a19f9c426e07dee59b12f944f4d9f1dd3) on the BSC testnet.
+- Step 2: Update this README.md file and create a Pull Request on [bsc github](https://github.com/bnb-chain/bsc) with relevant information.
+
+We will review the request, and once it is approved, the faucet tool will start to support the customized token and list it on https://www.bnbchain.org/en/testnet-faucet.
+
+# 2.Token List
+## 2.1.DemoToken
+- symbol: DEMO
+- amount: 10000000000000000000
+- icon: ./demotoken.png
+- addr: https://testnet.bscscan.com/address/0xe15c158d768c306dae87b96430a94f884333e55d
+- fundTx: [0xa499dc9aaf918aff0507538a8aa80a88d0af6ca15054e6acc57b69c651945280](https://testnet.bscscan.com/tx/0x2a3f334b6ca756b64331bdec9e6cf3207ac50a4839fda6379e909de4d9a194ca)
+- 
+## 2.2.DIN token
+- symbol: DIN
+- amount: 10000000000000000000
+- icon: ./DIN.png
+- addr: https://testnet.bscscan.com/address/0xb8b40FcC5B4519Dba0E07Ac8821884CE90BdE677
+- fundTx: [0x17fc4c1db133830c7c146a0d41ca1df31cb446989ec11b382d58bb6176d6fde3](https://testnet.bscscan.com/tx/0x17fc4c1db133830c7c146a0d41ca1df31cb446989ec11b382d58bb6176d6fde3)

cmd/faucet/faucet.go

@@ -53,9 +53,10 @@ import (
 )
 
 var (
-	genesisFlag = flag.String("genesis", "", "Genesis json file to seed the chain with")
-	apiPortFlag = flag.Int("apiport", 8080, "Listener port for the HTTP API connection")
-	wsEndpoint  = flag.String("ws", "http://127.0.0.1:7777/", "Url to ws endpoint")
+	genesisFlag       = flag.String("genesis", "", "Genesis json file to seed the chain with")
+	apiPortFlag       = flag.Int("apiport", 8080, "Listener port for the HTTP API connection")
+	wsEndpoint        = flag.String("ws", "http://127.0.0.1:7777/", "Url to ws endpoint")
+	wsEndpointMainnet = flag.String("ws.mainnet", "", "Url to ws endpoint of BSC mainnet")
 
 	netnameFlag = flag.String("faucet.name", "", "Network name to assign to the faucet")
 	payoutFlag  = flag.Int("faucet.amount", 1, "Number of Ethers to pay out per user request")
@@ -77,6 +78,12 @@ var (
 	fixGasPrice        = flag.Int64("faucet.fixedprice", 0, "Will use fixed gas price if specified")
 	twitterTokenFlag   = flag.String("twitter.token", "", "Bearer token to authenticate with the v2 Twitter API")
 	twitterTokenV1Flag = flag.String("twitter.token.v1", "", "Bearer token to authenticate with the v1.1 Twitter API")
+
+	resendInterval    = 15 * time.Second
+	resendBatchSize   = 3
+	resendMaxGasPrice = big.NewInt(50 * params.GWei)
+	wsReadTimeout     = 5 * time.Minute
+	minMainnetBalance = big.NewInt(2 * 1e6 * params.GWei) // 0.002 bnb
 )
 
 var (
@@ -87,11 +94,17 @@ var (
 //go:embed faucet.html
 var websiteTmpl string
 
+func weiToEtherStringFx(wei *big.Int, prec int) string {
+	etherValue := new(big.Float).Quo(new(big.Float).SetInt(wei), big.NewFloat(params.Ether))
+	// Format the big.Float directly to a string with the specified precision
+	return etherValue.Text('f', prec)
+}
+
 func main() {
 	// Parse the flags and set up the logger to print everything requested
 	flag.Parse()
-	log.SetDefault(log.NewLogger(log.NewTerminalHandlerWithLevel(os.Stderr, log.FromLegacyLevel(*logFlag), true)))
-
+	log.SetDefault(log.NewLogger(log.NewTerminalHandlerWithLevel(os.Stderr, log.FromLegacyLevel(*logFlag), false)))
+	log.Info("faucet started")
 	// Construct the payout tiers
 	amounts := make([]string, *tiersFlag)
 	for i := 0; i < *tiersFlag; i++ {
@@ -170,7 +183,7 @@ func main() {
 		log.Crit("Failed to unlock faucet signer account", "err", err)
 	}
 	// Assemble and start the faucet light service
-	faucet, err := newFaucet(genesis, *wsEndpoint, ks, website.Bytes(), bep2eInfos)
+	faucet, err := newFaucet(genesis, *wsEndpoint, *wsEndpointMainnet, ks, website.Bytes(), bep2eInfos)
 	if err != nil {
 		log.Crit("Failed to start faucet", "err", err)
 	}
@@ -197,9 +210,10 @@ type bep2eInfo struct {
 
 // faucet represents a crypto faucet backed by an Ethereum light client.
 type faucet struct {
-	config *params.ChainConfig // Chain configurations for signing
-	client *ethclient.Client   // Client connection to the Ethereum chain
-	index  []byte              // Index page to serve up on the web
+	config        *params.ChainConfig // Chain configurations for signing
+	client        *ethclient.Client   // Client connection to the Ethereum chain
+	clientMainnet *ethclient.Client   // Client connection to BSC mainnet for balance check
+	index         []byte              // Index page to serve up on the web
 
 	keystore *keystore.KeyStore // Keystore containing the single signer
 	account  accounts.Account   // Account funding user faucet requests
@@ -228,7 +242,7 @@ type wsConn struct {
 	wlock sync.Mutex
 }
 
-func newFaucet(genesis *core.Genesis, url string, ks *keystore.KeyStore, index []byte, bep2eInfos map[string]bep2eInfo) (*faucet, error) {
+func newFaucet(genesis *core.Genesis, url string, mainnetUrl string, ks *keystore.KeyStore, index []byte, bep2eInfos map[string]bep2eInfo) (*faucet, error) {
 	bep2eAbi, err := abi.JSON(strings.NewReader(bep2eAbiJson))
 	if err != nil {
 		return nil, err
@@ -237,6 +251,11 @@ func newFaucet(genesis *core.Genesis, url string, ks *keystore.KeyStore, index [
 	if err != nil {
 		return nil, err
 	}
+	clientMainnet, err := ethclient.Dial(mainnetUrl)
+	if err != nil {
+		// skip mainnet balance check if it there is no available mainnet endpoint
+		log.Warn("dail mainnet endpoint failed", "mainnetUrl", mainnetUrl, "err", err)
+	}
 
 	// Allow 1 request per minute with burst of 5, and cache up to 1000 IPs
 	limiter, err := NewIPRateLimiter(rate.Limit(1.0), 5, 1000)
@@ -245,16 +264,17 @@ func newFaucet(genesis *core.Genesis, url string, ks *keystore.KeyStore, index [
 	}
 
 	return &faucet{
-		config:     genesis.Config,
-		client:     client,
-		index:      index,
-		keystore:   ks,
-		account:    ks.Accounts()[0],
-		timeouts:   make(map[string]time.Time),
-		update:     make(chan struct{}, 1),
-		bep2eInfos: bep2eInfos,
-		bep2eAbi:   bep2eAbi,
-		limiter:    limiter,
+		config:        genesis.Config,
+		client:        client,
+		clientMainnet: clientMainnet,
+		index:         index,
+		keystore:      ks,
+		account:       ks.Accounts()[0],
+		timeouts:      make(map[string]time.Time),
+		update:        make(chan struct{}, 1),
+		bep2eInfos:    bep2eInfos,
+		bep2eAbi:      bep2eAbi,
+		limiter:       limiter,
 	}, nil
 }
 
@@ -378,7 +398,11 @@ func (f *faucet) apiHandler(w http.ResponseWriter, r *http.Request) {
 			Captcha string `json:"captcha"`
 			Symbol  string `json:"symbol"`
 		}
+		// not sure if it helps or not, but set a read deadline could help prevent resource leakage
+		// if user did not give response for too long, then the routine will be stuck.
+		conn.SetReadDeadline(time.Now().Add(wsReadTimeout))
 		if err = conn.ReadJSON(&msg); err != nil {
+			log.Debug("read json message failed", "err", err, "ip", ip)
 			return
 		}
 		if !*noauthFlag && !strings.HasPrefix(msg.URL, "https://twitter.com/") && !strings.HasPrefix(msg.URL, "https://www.facebook.com/") {
@@ -396,9 +420,9 @@ func (f *faucet) apiHandler(w http.ResponseWriter, r *http.Request) {
 			}
 			continue
 		}
-		log.Info("Faucet funds requested", "url", msg.URL, "tier", msg.Tier)
+		log.Info("Faucet funds requested", "url", msg.URL, "tier", msg.Tier, "ip", ip)
 
-		// If captcha verifications are enabled, make sure we're not dealing with a robot
+		// check #1: captcha verifications to exclude robot
 		if *captchaToken != "" {
 			form := url.Values{}
 			form.Add("secret", *captchaSecret)
@@ -475,88 +499,108 @@ func (f *faucet) apiHandler(w http.ResponseWriter, r *http.Request) {
 			}
 			continue
 		}
-		log.Info("Faucet request valid", "url", msg.URL, "tier", msg.Tier, "user", username, "address", address)
 
-		// Ensure the user didn't request funds too recently
+		// check #2: check IP and ID(address) to ensure the user didn't request funds too frequently
 		f.lock.Lock()
-		var (
-			fund    bool
-			timeout time.Time
-		)
 
 		if ipTimeout := f.timeouts[ips[len(ips)-2]]; time.Now().Before(ipTimeout) {
+			f.lock.Unlock()
 			if err = sendError(wsconn, fmt.Errorf("%s left until next allowance", common.PrettyDuration(time.Until(ipTimeout)))); err != nil { // nolint: gosimple
 				log.Warn("Failed to send funding error to client", "err", err)
+				return
 			}
-			f.lock.Unlock()
+			log.Info("too frequent funding(ip)", "TimeLeft", common.PrettyDuration(time.Until(ipTimeout)), "ip", ips[len(ips)-2], "ipsStr", ipsStr)
 			continue
 		}
-
-		if timeout = f.timeouts[id]; time.Now().After(timeout) {
-			var tx *types.Transaction
-			if msg.Symbol == "BNB" {
-				// User wasn't funded recently, create the funding transaction
-				amount := new(big.Int).Div(new(big.Int).Mul(big.NewInt(int64(*payoutFlag)), ether), big.NewInt(10))
-				amount = new(big.Int).Mul(amount, new(big.Int).Exp(big.NewInt(5), big.NewInt(int64(msg.Tier)), nil))
-				amount = new(big.Int).Div(amount, new(big.Int).Exp(big.NewInt(2), big.NewInt(int64(msg.Tier)), nil))
-
-				tx = types.NewTransaction(f.nonce+uint64(len(f.reqs)), address, amount, 21000, f.price, nil)
-			} else {
-				tokenInfo, ok := f.bep2eInfos[msg.Symbol]
-				if !ok {
-					f.lock.Unlock()
-					log.Warn("Failed to find symbol", "symbol", msg.Symbol)
-					continue
-				}
-				input, err := f.bep2eAbi.Pack("transfer", address, &tokenInfo.Amount)
-				if err != nil {
-					f.lock.Unlock()
-					log.Warn("Failed to pack transfer transaction", "err", err)
-					continue
-				}
-				tx = types.NewTransaction(f.nonce+uint64(len(f.reqs)), tokenInfo.Contract, nil, 420000, f.price, input)
+		if idTimeout := f.timeouts[id]; time.Now().Before(idTimeout) {
+			f.lock.Unlock()
+			// Send an error if too frequent funding, otherwise a success
+			if err = sendError(wsconn, fmt.Errorf("%s left until next allowance", common.PrettyDuration(time.Until(idTimeout)))); err != nil { // nolint: gosimple
+				log.Warn("Failed to send funding error to client", "err", err)
+				return
 			}
-			signed, err := f.keystore.SignTx(f.account, tx, f.config.ChainID)
+			log.Info("too frequent funding(id)", "TimeLeft", common.PrettyDuration(time.Until(idTimeout)), "id", id)
+			continue
+		}
+		// check #3: minimum mainnet balance check, internal error will bypass the check to avoid blocking the faucet service
+		if f.clientMainnet != nil {
+			mainnetAddr := address
+			balanceMainnet, err := f.clientMainnet.BalanceAt(context.Background(), mainnetAddr, nil)
+			if err != nil {
+				log.Warn("check balance failed, call BalanceAt", "err", err)
+			} else if balanceMainnet == nil {
+				log.Warn("check balance failed, balanceMainnet is nil")
+			} else {
+				if balanceMainnet.Cmp(minMainnetBalance) < 0 {
+					f.lock.Unlock()
+					log.Warn("insufficient BNB on BSC mainnet", "address", mainnetAddr,
+						"balanceMainnet", balanceMainnet, "minMainnetBalance", minMainnetBalance)
+					// Send an error if failed to meet the minimum balance requirement
+					if err = sendError(wsconn, fmt.Errorf("insufficient BNB on BSC mainnet        (require >=%sBNB)",
+						weiToEtherStringFx(minMainnetBalance, 3))); err != nil {
+						log.Warn("Failed to send mainnet minimum balance error to client", "err", err)
+						return
+					}
+					continue
+				}
+			}
+		}
+		log.Info("Faucet request valid", "url", msg.URL, "tier", msg.Tier, "user", username, "address", address, "ip", ip)
+
+		// now, it is ok to send tBNB or other tokens
+		var tx *types.Transaction
+		if msg.Symbol == "BNB" {
+			// User wasn't funded recently, create the funding transaction
+			amount := new(big.Int).Div(new(big.Int).Mul(big.NewInt(int64(*payoutFlag)), ether), big.NewInt(10))
+			amount = new(big.Int).Mul(amount, new(big.Int).Exp(big.NewInt(5), big.NewInt(int64(msg.Tier)), nil))
+			amount = new(big.Int).Div(amount, new(big.Int).Exp(big.NewInt(2), big.NewInt(int64(msg.Tier)), nil))
+
+			tx = types.NewTransaction(f.nonce+uint64(len(f.reqs)), address, amount, 21000, f.price, nil)
+		} else {
+			tokenInfo, ok := f.bep2eInfos[msg.Symbol]
+			if !ok {
+				f.lock.Unlock()
+				log.Warn("Failed to find symbol", "symbol", msg.Symbol)
+				continue
+			}
+			input, err := f.bep2eAbi.Pack("transfer", address, &tokenInfo.Amount)
 			if err != nil {
 				f.lock.Unlock()
-				if err = sendError(wsconn, err); err != nil {
-					log.Warn("Failed to send transaction creation error to client", "err", err)
-					return
-				}
+				log.Warn("Failed to pack transfer transaction", "err", err)
 				continue
 			}
-			// Submit the transaction and mark as funded if successful
-			if err := f.client.SendTransaction(context.Background(), signed); err != nil {
-				f.lock.Unlock()
-				if err = sendError(wsconn, err); err != nil {
-					log.Warn("Failed to send transaction transmission error to client", "err", err)
-					return
-				}
-				continue
-			}
-			f.reqs = append(f.reqs, &request{
-				Avatar:  avatar,
-				Account: address,
-				Time:    time.Now(),
-				Tx:      signed,
-			})
-			timeout := time.Duration(*minutesFlag*int(math.Pow(3, float64(msg.Tier)))) * time.Minute
-			grace := timeout / 288 // 24h timeout => 5m grace
-
-			f.timeouts[id] = time.Now().Add(timeout - grace)
-			f.timeouts[ips[len(ips)-2]] = time.Now().Add(timeout - grace)
-			fund = true
+			tx = types.NewTransaction(f.nonce+uint64(len(f.reqs)), tokenInfo.Contract, nil, 420000, f.price, input)
 		}
-		f.lock.Unlock()
-
-		// Send an error if too frequent funding, otherwise a success
-		if !fund {
-			if err = sendError(wsconn, fmt.Errorf("%s left until next allowance", common.PrettyDuration(time.Until(timeout)))); err != nil { // nolint: gosimple
-				log.Warn("Failed to send funding error to client", "err", err)
+		signed, err := f.keystore.SignTx(f.account, tx, f.config.ChainID)
+		if err != nil {
+			f.lock.Unlock()
+			if err = sendError(wsconn, err); err != nil {
+				log.Warn("Failed to send transaction creation error to client", "err", err)
 				return
 			}
 			continue
 		}
+		// Submit the transaction and mark as funded if successful
+		if err := f.client.SendTransaction(context.Background(), signed); err != nil {
+			f.lock.Unlock()
+			if err = sendError(wsconn, err); err != nil {
+				log.Warn("Failed to send transaction transmission error to client", "err", err)
+				return
+			}
+			continue
+		}
+		f.reqs = append(f.reqs, &request{
+			Avatar:  avatar,
+			Account: address,
+			Time:    time.Now(),
+			Tx:      signed,
+		})
+		timeoutInt64 := time.Duration(*minutesFlag*int(math.Pow(3, float64(msg.Tier)))) * time.Minute
+		grace := timeoutInt64 / 288 // 24h timeout => 5m grace
+
+		f.timeouts[id] = time.Now().Add(timeoutInt64 - grace)
+		f.timeouts[ips[len(ips)-2]] = time.Now().Add(timeoutInt64 - grace)
+		f.lock.Unlock()
 		if err = sendSuccess(wsconn, fmt.Sprintf("Funding request accepted for %s into %s", username, address.Hex())); err != nil {
 			log.Warn("Failed to send funding success to client", "err", err)
 			return
@@ -605,9 +649,52 @@ func (f *faucet) refresh(head *types.Header) error {
 	f.lock.Lock()
 	f.head, f.balance = head, balance
 	f.price, f.nonce = price, nonce
-	if len(f.reqs) > 0 && f.reqs[0].Tx.Nonce() > f.nonce {
+	if len(f.reqs) == 0 {
+		log.Debug("refresh len(f.reqs) == 0", "f.nonce", f.nonce)
+		f.lock.Unlock()
+		return nil
+	}
+	if f.reqs[0].Tx.Nonce() == f.nonce {
+		// if the next Tx failed to be included for a certain time(resendInterval), try to
+		// resend it with higher gasPrice, as it could be discarded in the network.
+		// Also resend extra following txs, as they could be discarded as well.
+		if time.Now().After(f.reqs[0].Time.Add(resendInterval)) {
+			for i, req := range f.reqs {
+				if i >= resendBatchSize {
+					break
+				}
+				prePrice := req.Tx.GasPrice()
+				// bump gas price 20% to replace the previous tx
+				newPrice := new(big.Int).Add(prePrice, new(big.Int).Div(prePrice, big.NewInt(5)))
+				if newPrice.Cmp(resendMaxGasPrice) >= 0 {
+					log.Info("resendMaxGasPrice reached", "newPrice", newPrice, "resendMaxGasPrice", resendMaxGasPrice, "nonce", req.Tx.Nonce())
+					break
+				}
+				newTx := types.NewTransaction(req.Tx.Nonce(), *req.Tx.To(), req.Tx.Value(), req.Tx.Gas(), newPrice, req.Tx.Data())
+				newSigned, err := f.keystore.SignTx(f.account, newTx, f.config.ChainID)
+				if err != nil {
+					log.Error("resend sign tx failed", "err", err)
+				}
+				log.Info("reqs[0] Tx has been stuck for a while, trigger resend",
+					"resendInterval", resendInterval, "resendTxSize", resendBatchSize,
+					"preHash", req.Tx.Hash().Hex(), "newHash", newSigned.Hash().Hex(),
+					"newPrice", newPrice, "nonce", req.Tx.Nonce(), "req.Tx.Gas()", req.Tx.Gas())
+				if err := f.client.SendTransaction(context.Background(), newSigned); err != nil {
+					log.Warn("resend tx failed", "err", err)
+					continue
+				}
+				req.Tx = newSigned
+			}
+		}
+	}
+	// it is abnormal that reqs[0] has larger nonce than next expected nonce.
+	// could be caused by reorg? reset it
+	if f.reqs[0].Tx.Nonce() > f.nonce {
+		log.Warn("reset due to nonce gap", "f.nonce", f.nonce, "f.reqs[0].Tx.Nonce()", f.reqs[0].Tx.Nonce())
 		f.reqs = f.reqs[:0]
 	}
+	// remove the reqs if they have smaller nonce, which means it is no longer valid,
+	// either has been accepted or replaced.
 	for len(f.reqs) > 0 && f.reqs[0].Tx.Nonce() < f.nonce {
 		f.reqs = f.reqs[1:]
 	}

cmd/geth/config.go

@@ -33,6 +33,7 @@ import (
 	"github.com/ethereum/go-ethereum/accounts/keystore"
 	"github.com/ethereum/go-ethereum/accounts/scwallet"
 	"github.com/ethereum/go-ethereum/accounts/usbwallet"
+	"github.com/ethereum/go-ethereum/beacon/fakebeacon"
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/rawdb"
@@ -92,10 +93,11 @@ type ethstatsConfig struct {
 }
 
 type gethConfig struct {
-	Eth      ethconfig.Config
-	Node     node.Config
-	Ethstats ethstatsConfig
-	Metrics  metrics.Config
+	Eth        ethconfig.Config
+	Node       node.Config
+	Ethstats   ethstatsConfig
+	Metrics    metrics.Config
+	FakeBeacon fakebeacon.Config
 }
 
 func loadConfig(file string, cfg *gethConfig) error {
@@ -242,11 +244,22 @@ func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) {
 		utils.RegisterEthStatsService(stack, backend, cfg.Ethstats.URL)
 	}
 
+	if ctx.IsSet(utils.FakeBeaconAddrFlag.Name) {
+		cfg.FakeBeacon.Addr = ctx.String(utils.FakeBeaconAddrFlag.Name)
+	}
+	if ctx.IsSet(utils.FakeBeaconPortFlag.Name) {
+		cfg.FakeBeacon.Port = ctx.Int(utils.FakeBeaconPortFlag.Name)
+	}
+	if cfg.FakeBeacon.Enable || ctx.IsSet(utils.FakeBeaconEnabledFlag.Name) {
+		go fakebeacon.NewService(&cfg.FakeBeacon, backend).Run()
+	}
+
 	git, _ := version.VCS()
 	utils.SetupMetrics(ctx,
 		utils.EnableBuildInfo(git.Commit, git.Date),
 		utils.EnableMinerInfo(ctx, &cfg.Eth.Miner),
 		utils.EnableNodeInfo(&cfg.Eth.TxPool, stack.Server().NodeInfo()),
+		utils.EnableNodeTrack(ctx, &cfg.Eth, stack),
 	)
 	return stack, backend
 }

cmd/geth/main.go

@@ -232,6 +232,12 @@ var (
 		utils.MetricsInfluxDBBucketFlag,
 		utils.MetricsInfluxDBOrganizationFlag,
 	}
+
+	fakeBeaconFlags = []cli.Flag{
+		utils.FakeBeaconEnabledFlag,
+		utils.FakeBeaconAddrFlag,
+		utils.FakeBeaconPortFlag,
+	}
 )
 
 var app = flags.NewApp("the go-ethereum command line interface")
@@ -286,6 +292,7 @@ func init() {
 		consoleFlags,
 		debug.Flags,
 		metricsFlags,
+		fakeBeaconFlags,
 	)
 	flags.AutoEnvVars(app.Flags, "GETH")
 
@@ -443,22 +450,23 @@ func startNode(ctx *cli.Context, stack *node.Node, backend ethapi.Backend, isCon
 	}
 
 	// Start auxiliary services if enabled
+	ethBackend, ok := backend.(*eth.EthAPIBackend)
+	gasCeil := ethBackend.Miner().GasCeil()
+	if gasCeil > params.SystemTxsGas {
+		ethBackend.TxPool().SetMaxGas(gasCeil - params.SystemTxsGas)
+	}
 	if ctx.Bool(utils.MiningEnabledFlag.Name) {
 		// Mining only makes sense if a full Ethereum node is running
 		if ctx.String(utils.SyncModeFlag.Name) == "light" {
 			utils.Fatalf("Light clients do not support mining")
 		}
-		ethBackend, ok := backend.(*eth.EthAPIBackend)
+
 		if !ok {
 			utils.Fatalf("Ethereum service not running")
 		}
 		// Set the gas price to the limits from the CLI and start mining
 		gasprice := flags.GlobalBig(ctx, utils.MinerGasPriceFlag.Name)
 		ethBackend.TxPool().SetGasTip(gasprice)
-		gasCeil := ethBackend.Miner().GasCeil()
-		if gasCeil > params.SystemTxsGas {
-			ethBackend.TxPool().SetMaxGas(gasCeil - params.SystemTxsGas)
-		}
 		if err := ethBackend.StartMining(); err != nil {
 			utils.Fatalf("Failed to start mining: %v", err)
 		}

cmd/utils/flags.go

@@ -35,8 +35,11 @@ import (
 	"strings"
 	"time"
 
+	"github.com/ethereum/go-ethereum/internal/version"
+
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/accounts/keystore"
+	"github.com/ethereum/go-ethereum/beacon/fakebeacon"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/fdlimit"
 	"github.com/ethereum/go-ethereum/core"
@@ -1146,6 +1149,25 @@ Please note that --` + MetricsHTTPFlag.Name + ` must be set to start the server.
 		Value:    params.DefaultExtraReserveForBlobRequests,
 		Category: flags.MiscCategory,
 	}
+
+	// Fake beacon
+	FakeBeaconEnabledFlag = &cli.BoolFlag{
+		Name:     "fake-beacon",
+		Usage:    "Enable the HTTP-RPC server of fake-beacon",
+		Category: flags.APICategory,
+	}
+	FakeBeaconAddrFlag = &cli.StringFlag{
+		Name:     "fake-beacon.addr",
+		Usage:    "HTTP-RPC server listening addr of fake-beacon",
+		Value:    fakebeacon.DefaultAddr,
+		Category: flags.APICategory,
+	}
+	FakeBeaconPortFlag = &cli.IntFlag{
+		Name:     "fake-beacon.port",
+		Usage:    "HTTP-RPC server listening port of fake-beacon",
+		Value:    fakebeacon.DefaultPort,
+		Category: flags.APICategory,
+	}
 )
 
 var (
@@ -2297,6 +2319,67 @@ func EnableNodeInfo(poolConfig *legacypool.Config, nodeInfo *p2p.NodeInfo) Setup
 	}
 }
 
+func EnableNodeTrack(ctx *cli.Context, cfg *ethconfig.Config, stack *node.Node) SetupMetricsOption {
+	nodeInfo := stack.Server().NodeInfo()
+	return func() {
+		// register node info into metrics
+		metrics.NewRegisteredLabel("node-stats", nil).Mark(map[string]interface{}{
+			"NodeType":       parseNodeType(),
+			"ENR":            nodeInfo.ENR,
+			"Mining":         ctx.Bool(MiningEnabledFlag.Name),
+			"Etherbase":      parseEtherbase(cfg),
+			"MiningFeatures": parseMiningFeatures(ctx, cfg),
+			"DBFeatures":     parseDBFeatures(cfg, stack),
+		})
+	}
+}
+
+func parseEtherbase(cfg *ethconfig.Config) string {
+	if cfg.Miner.Etherbase == (common.Address{}) {
+		return ""
+	}
+	return cfg.Miner.Etherbase.String()
+}
+
+func parseNodeType() string {
+	git, _ := version.VCS()
+	version := []string{params.VersionWithMeta}
+	if len(git.Commit) >= 7 {
+		version = append(version, git.Commit[:7])
+	}
+	if git.Date != "" {
+		version = append(version, git.Date)
+	}
+	arch := []string{runtime.GOOS, runtime.GOARCH}
+	infos := []string{"BSC", strings.Join(version, "-"), strings.Join(arch, "-"), runtime.Version()}
+	return strings.Join(infos, "/")
+}
+
+func parseDBFeatures(cfg *ethconfig.Config, stack *node.Node) string {
+	var features []string
+	if cfg.StateScheme == rawdb.PathScheme {
+		features = append(features, "PBSS")
+	}
+	if stack.CheckIfMultiDataBase() {
+		features = append(features, "MultiDB")
+	}
+	return strings.Join(features, "|")
+}
+
+func parseMiningFeatures(ctx *cli.Context, cfg *ethconfig.Config) string {
+	if !ctx.Bool(MiningEnabledFlag.Name) {
+		return ""
+	}
+	var features []string
+	if cfg.Miner.Mev.Enabled {
+		features = append(features, "MEV")
+	}
+	if cfg.Miner.VoteEnable {
+		features = append(features, "FFVoting")
+	}
+	return strings.Join(features, "|")
+}
+
 func SetupMetrics(ctx *cli.Context, options ...SetupMetricsOption) {
 	if metrics.Enabled {
 		log.Info("Enabling metrics collection")

consensus/parlia/parlia.go

@@ -68,7 +68,6 @@ const (
 
 	wiggleTime         = uint64(1) // second, Random delay (per signer) to allow concurrent signers
 	initialBackOffTime = uint64(1) // second
-	processBackOffTime = uint64(1) // second
 
 	systemRewardPercent = 4 // it means 1/2^4 = 1/16 percentage of gas fee incoming will be distributed to system
 
@@ -1616,12 +1615,15 @@ func (p *Parlia) Seal(chain consensus.ChainHeaderReader, block *types.Block, res
 		copy(header.Extra[len(header.Extra)-extraSeal:], sig)
 
 		if p.shouldWaitForCurrentBlockProcess(chain, header, snap) {
-			log.Info("Waiting for received in turn block to process")
+			highestVerifiedHeader := chain.GetHighestVerifiedHeader()
+			// including time for writing and committing blocks
+			waitProcessEstimate := math.Ceil(float64(highestVerifiedHeader.GasUsed) / float64(100_000_000))
+			log.Info("Waiting for received in turn block to process", "waitProcessEstimate(Seconds)", waitProcessEstimate)
 			select {
 			case <-stop:
 				log.Info("Received block process finished, abort block seal")
 				return
-			case <-time.After(time.Duration(processBackOffTime) * time.Second):
+			case <-time.After(time.Duration(waitProcessEstimate) * time.Second):
 				if chain.CurrentHeader().Number.Uint64() >= header.Number.Uint64() {
 					log.Info("Process backoff time exhausted, and current header has updated to abort this seal")
 					return

core/block_validator.go

@@ -66,31 +66,6 @@ func NewBlockValidator(config *params.ChainConfig, blockchain *BlockChain, engin
 	return validator
 }
 
-// ValidateListsInBody validates that UncleHash, WithdrawalsHash, and WithdrawalsHash correspond to the lists in the block body, respectively.
-func ValidateListsInBody(block *types.Block) error {
-	header := block.Header()
-	if hash := types.CalcUncleHash(block.Uncles()); hash != header.UncleHash {
-		return fmt.Errorf("uncle root hash mismatch (header value %x, calculated %x)", header.UncleHash, hash)
-	}
-	if hash := types.DeriveSha(block.Transactions(), trie.NewStackTrie(nil)); hash != header.TxHash {
-		return fmt.Errorf("transaction root hash mismatch: have %x, want %x", hash, header.TxHash)
-	}
-	// Withdrawals are present after the Shanghai fork.
-	if header.WithdrawalsHash != nil {
-		// Withdrawals list must be present in body after Shanghai.
-		if block.Withdrawals() == nil {
-			return errors.New("missing withdrawals in block body")
-		}
-		if hash := types.DeriveSha(block.Withdrawals(), trie.NewStackTrie(nil)); hash != *header.WithdrawalsHash {
-			return fmt.Errorf("withdrawals root hash mismatch (header value %x, calculated %x)", *header.WithdrawalsHash, hash)
-		}
-	} else if block.Withdrawals() != nil { // Withdrawals turn into empty from nil when BlockBody has Sidecars
-		// Withdrawals are not allowed prior to shanghai fork
-		return errors.New("withdrawals present in block body")
-	}
-	return nil
-}
-
 // ValidateBody validates the given block's uncles and verifies the block
 // header's transaction and uncle roots. The headers are assumed to be already
 // validated at this point.
@@ -108,12 +83,31 @@ func (v *BlockValidator) ValidateBody(block *types.Block) error {
 	if err := v.engine.VerifyUncles(v.bc, block); err != nil {
 		return err
 	}
+	if hash := types.CalcUncleHash(block.Uncles()); hash != header.UncleHash {
+		return fmt.Errorf("uncle root hash mismatch (header value %x, calculated %x)", header.UncleHash, hash)
+	}
 
 	validateFuns := []func() error{
 		func() error {
-			return ValidateListsInBody(block)
+			if hash := types.DeriveSha(block.Transactions(), trie.NewStackTrie(nil)); hash != header.TxHash {
+				return fmt.Errorf("transaction root hash mismatch: have %x, want %x", hash, header.TxHash)
+			}
+			return nil
 		},
 		func() error {
+			// Withdrawals are present after the Shanghai fork.
+			if header.WithdrawalsHash != nil {
+				// Withdrawals list must be present in body after Shanghai.
+				if block.Withdrawals() == nil {
+					return errors.New("missing withdrawals in block body")
+				}
+				if hash := types.DeriveSha(block.Withdrawals(), trie.NewStackTrie(nil)); hash != *header.WithdrawalsHash {
+					return fmt.Errorf("withdrawals root hash mismatch (header value %x, calculated %x)", *header.WithdrawalsHash, hash)
+				}
+			} else if block.Withdrawals() != nil { // Withdrawals turn into empty from nil when BlockBody has Sidecars
+				// Withdrawals are not allowed prior to shanghai fork
+				return errors.New("withdrawals present in block body")
+			}
 			// Blob transactions may be present after the Cancun fork.
 			var blobs int
 			for i, tx := range block.Transactions() {

core/blockchain.go

@@ -100,6 +100,8 @@ var (
 	blockReorgAddMeter  = metrics.NewRegisteredMeter("chain/reorg/add", nil)
 	blockReorgDropMeter = metrics.NewRegisteredMeter("chain/reorg/drop", nil)
 
+	blockRecvTimeDiffGauge = metrics.NewRegisteredGauge("chain/block/recvtimediff", nil)
+
 	errStateRootVerificationFailed = errors.New("state root verification failed")
 	errInsertionInterrupted        = errors.New("insertion is interrupted")
 	errChainStopped                = errors.New("blockchain is stopped")
@@ -2055,6 +2057,9 @@ func (bc *BlockChain) insertChain(chain types.Blocks, setHead bool) (int, error)
 		return 0, nil
 	}
 
+	if len(chain) > 0 {
+		blockRecvTimeDiffGauge.Update(time.Now().Unix() - int64(chain[0].Time()))
+	}
 	// Start a parallel signature recovery (signer will fluke on fork transition, minimal perf loss)
 	signer := types.MakeSigner(bc.chainConfig, chain[0].Number(), chain[0].Time())
 	go SenderCacher.RecoverFromBlocks(signer, chain)

crypto/bn256/cloudflare/gfp12.go

@@ -1,7 +1,7 @@
 package bn256
 
 // For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
+// Pairing-Friendly Fields", Devegili et al.
 // http://eprint.iacr.org/2006/471.pdf.
 
 import (

crypto/bn256/cloudflare/gfp2.go

@@ -1,7 +1,7 @@
 package bn256
 
 // For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
+// Pairing-Friendly Fields", Devegili et al.
 // http://eprint.iacr.org/2006/471.pdf.
 
 // gfP2 implements a field of size p² as a quadratic extension of the base field

crypto/bn256/cloudflare/gfp6.go

@@ -1,7 +1,7 @@
 package bn256
 
 // For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
+// Pairing-Friendly Fields", Devegili et al.
 // http://eprint.iacr.org/2006/471.pdf.
 
 // gfP6 implements the field of size p⁶ as a cubic extension of gfP2 where τ³=ξ

crypto/bn256/google/gfp12.go

@@ -5,7 +5,7 @@
 package bn256
 
 // For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
+// Pairing-Friendly Fields", Devegili et al.
 // http://eprint.iacr.org/2006/471.pdf.
 
 import (

crypto/bn256/google/gfp2.go

@@ -5,7 +5,7 @@
 package bn256
 
 // For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
+// Pairing-Friendly Fields", Devegili et al.
 // http://eprint.iacr.org/2006/471.pdf.
 
 import (

crypto/bn256/google/gfp6.go

@@ -5,7 +5,7 @@
 package bn256
 
 // For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
+// Pairing-Friendly Fields", Devegili et al.
 // http://eprint.iacr.org/2006/471.pdf.
 
 import (

eth/api_miner.go

@@ -73,7 +73,7 @@ func (api *MinerAPI) SetGasPrice(gasPrice hexutil.Big) bool {
 // SetGasLimit sets the gaslimit to target towards during mining.
 func (api *MinerAPI) SetGasLimit(gasLimit hexutil.Uint64) bool {
 	api.e.Miner().SetGasCeil(uint64(gasLimit))
-	if api.e.Miner().Mining() && uint64(gasLimit) > params.SystemTxsGas {
+	if uint64(gasLimit) > params.SystemTxsGas {
 		api.e.TxPool().SetMaxGas(uint64(gasLimit) - params.SystemTxsGas)
 	}
 	return true

eth/downloader/downloader.go

@@ -327,7 +327,7 @@ func (d *Downloader) UnregisterPeer(id string) error {
 
 // LegacySync tries to sync up our local blockchain with a remote peer, both
 // adding various sanity checks and wrapping it with various log entries.
-func (d *Downloader) LegacySync(id string, head common.Hash, td *big.Int, ttd *big.Int, mode SyncMode) error {
+func (d *Downloader) LegacySync(id string, head common.Hash, name string, td *big.Int, ttd *big.Int, mode SyncMode) error {
 	err := d.synchronise(id, head, td, ttd, mode, false, nil)
 
 	switch err {
@@ -337,7 +337,7 @@ func (d *Downloader) LegacySync(id string, head common.Hash, td *big.Int, ttd *b
 	if errors.Is(err, errInvalidChain) || errors.Is(err, errBadPeer) || errors.Is(err, errTimeout) ||
 		errors.Is(err, errStallingPeer) || errors.Is(err, errUnsyncedPeer) || errors.Is(err, errEmptyHeaderSet) ||
 		errors.Is(err, errPeersUnavailable) || errors.Is(err, errTooOld) || errors.Is(err, errInvalidAncestor) {
-		log.Warn("Synchronisation failed, dropping peer", "peer", id, "err", err)
+		log.Warn("Synchronisation failed, dropping peer", "peer", id, "name", name, "td", td, "err", err)
 		if d.dropPeer == nil {
 			// The dropPeer method is nil when `--copydb` is used for a local copy.
 			// Timeouts can occur if e.g. compaction hits at the wrong time, and can be ignored

eth/downloader/downloader_test.go

@@ -902,7 +902,7 @@ func testBlockHeaderAttackerDropping(t *testing.T, protocol uint) {
 		// Simulate a synchronisation and check the required result
 		tester.downloader.synchroniseMock = func(string, common.Hash) error { return tt.result }
 
-		tester.downloader.LegacySync(id, tester.chain.Genesis().Hash(), big.NewInt(1000), nil, FullSync)
+		tester.downloader.LegacySync(id, tester.chain.Genesis().Hash(), "", big.NewInt(1000), nil, FullSync)
 		if _, ok := tester.peers[id]; !ok != tt.drop {
 			t.Errorf("test %d: peer drop mismatch for %v: have %v, want %v", i, tt.result, !ok, tt.drop)
 		}

eth/fetcher/block_fetcher.go

@@ -868,9 +868,9 @@ func (f *BlockFetcher) importHeaders(op *blockOrHeaderInject) {
 		parent := f.getHeader(header.ParentHash)
 		if parent == nil {
 			log.Debug("Unknown parent of propagated header", "peer", peer, "number", header.Number, "hash", hash, "parent", header.ParentHash)
-			time.Sleep(reQueueBlockTimeout)
 			// forget block first, then re-queue
 			f.done <- hash
+			time.Sleep(reQueueBlockTimeout)
 			f.requeue <- op
 			return
 		}
@@ -909,9 +909,9 @@ func (f *BlockFetcher) importBlocks(op *blockOrHeaderInject) {
 		parent := f.getBlock(block.ParentHash())
 		if parent == nil {
 			log.Debug("Unknown parent of propagated block", "peer", peer, "number", block.Number(), "hash", hash, "parent", block.ParentHash())
-			time.Sleep(reQueueBlockTimeout)
 			// forget block first, then re-queue
 			f.done <- hash
+			time.Sleep(reQueueBlockTimeout)
 			f.requeue <- op
 			return
 		}

eth/handler.go

@@ -321,21 +321,14 @@ func newHandler(config *handlerConfig) (*handler, error) {
 
 	broadcastBlockWithCheck := func(block *types.Block, propagate bool) {
 		if propagate {
-			checkErrs := make(chan error, 2)
-
-			go func() {
-				checkErrs <- core.ValidateListsInBody(block)
-			}()
-			go func() {
-				checkErrs <- core.IsDataAvailable(h.chain, block)
-			}()
-
-			for i := 0; i < cap(checkErrs); i++ {
-				err := <-checkErrs
-				if err != nil {
-					log.Error("Propagating invalid block", "number", block.Number(), "hash", block.Hash(), "err", err)
-					return
-				}
+			if !(block.Header().WithdrawalsHash == nil && block.Withdrawals() == nil) &&
+				!(block.Header().EmptyWithdrawalsHash() && block.Withdrawals() != nil && len(block.Withdrawals()) == 0) {
+				log.Error("Propagated block has invalid withdrawals")
+				return
+			}
+			if err := core.IsDataAvailable(h.chain, block); err != nil {
+				log.Error("Propagating block with invalid sidecars", "number", block.Number(), "hash", block.Hash(), "err", err)
+				return
 			}
 		}
 		h.BroadcastBlock(block, propagate)
@@ -483,13 +476,13 @@ func (h *handler) runEthPeer(peer *eth.Peer, handler eth.Handler) error {
 		h.peersPerIP[remoteIP] = h.peersPerIP[remoteIP] + 1
 		h.peerPerIPLock.Unlock()
 	}
-	peer.Log().Debug("Ethereum peer connected", "name", peer.Name())
 
 	// Register the peer locally
 	if err := h.peers.registerPeer(peer, snap, trust, bsc); err != nil {
 		peer.Log().Error("Ethereum peer registration failed", "err", err)
 		return err
 	}
+	peer.Log().Debug("Ethereum peer connected", "name", peer.Name(), "peers.len", h.peers.len())
 	defer h.unregisterPeer(peer.ID())
 
 	p := h.peers.peer(peer.ID())
@@ -632,7 +625,7 @@ func (h *handler) runBscExtension(peer *bsc.Peer, handler bsc.Handler) error {
 				bsc.EgressRegistrationErrorMeter.Mark(1)
 			}
 		}
-		peer.Log().Error("Bsc extension registration failed", "err", err)
+		peer.Log().Error("Bsc extension registration failed", "err", err, "name", peer.Name())
 		return err
 	}
 	return handler(peer)

eth/protocols/eth/protocol.go

@@ -25,6 +25,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/forkid"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
@@ -46,7 +47,7 @@ var ProtocolVersions = []uint{ETH68}
 var protocolLengths = map[uint]uint64{ETH68: 17}
 
 // maxMessageSize is the maximum cap on the size of a protocol message.
-const maxMessageSize = 10 * 1024 * 1024
+var maxMessageSize = params.MaxMessageSize
 
 const (
 	StatusMsg                     = 0x00

eth/sync.go

@@ -233,7 +233,7 @@ func (cs *chainSyncer) startSync(op *chainSyncOp) {
 // doSync synchronizes the local blockchain with a remote peer.
 func (h *handler) doSync(op *chainSyncOp) error {
 	// Run the sync cycle, and disable snap sync if we're past the pivot block
-	err := h.downloader.LegacySync(op.peer.ID(), op.head, op.td, h.chain.Config().TerminalTotalDifficulty, op.mode)
+	err := h.downloader.LegacySync(op.peer.ID(), op.head, op.peer.Name(), op.td, h.chain.Config().TerminalTotalDifficulty, op.mode)
 	if err != nil {
 		return err
 	}
@@ -248,6 +248,9 @@ func (h *handler) doSync(op *chainSyncOp) error {
 		// degenerate connectivity, but it should be healthy for the mainnet too to
 		// more reliably update peers or the local TD state.
 		if block := h.chain.GetBlock(head.Hash(), head.Number.Uint64()); block != nil {
+			if h.chain.Config().IsCancun(block.Number(), block.Time()) {
+				block = block.WithSidecars(h.chain.GetSidecarsByHash(block.Hash()))
+			}
 			h.BroadcastBlock(block, false)
 		}
 	}

miner/bid_simulator.go

@@ -692,6 +692,14 @@ func (b *bidSimulator) simBid(interruptCh chan int32, bidRuntime *BidRuntime) {
 		return
 	}
 
+	// check bid size
+	if bidRuntime.env.size+blockReserveSize > params.MaxMessageSize {
+		log.Error("BidSimulator: failed to check bid size", "builder", bidRuntime.bid.Builder,
+			"bidHash", bidRuntime.bid.Hash(), "env.size", bidRuntime.env.size)
+		err = errors.New("invalid bid size")
+		return
+	}
+
 	bestBid := b.GetBestBid(parentHash)
 	if bestBid == nil {
 		log.Info("[BID RESULT]", "win", "true[first]", "builder", bidRuntime.bid.Builder, "hash", bidRuntime.bid.Hash().TerminalString())
@@ -858,6 +866,7 @@ func (r *BidRuntime) commitTransaction(chain *core.BlockChain, chainConfig *para
 	}
 
 	r.env.tcount++
+	r.env.size += uint32(tx.Size())
 
 	return nil
 }

miner/miner.go

@@ -62,7 +62,7 @@ type Config struct {
 
 // DefaultConfig contains default settings for miner.
 var DefaultConfig = Config{
-	GasCeil:  30000000,
+	GasCeil:  0,
 	GasPrice: big.NewInt(params.GWei),
 
 	// The default recommit time is chosen as two seconds since

miner/worker.go

@@ -70,6 +70,12 @@ const (
 
 	// the default to wait for the mev miner to finish
 	waitMEVMinerEndTimeLimit = 50 * time.Millisecond
+
+	// Reserve block size for the following 3 components:
+	// a. System transactions at the end of the block
+	// b. Seal in the block header
+	// c. Overhead from RLP encoding
+	blockReserveSize = 100 * 1024
 )
 
 var (
@@ -89,6 +95,7 @@ type environment struct {
 	signer   types.Signer
 	state    *state.StateDB // apply state changes here
 	tcount   int            // tx count in cycle
+	size     uint32         // almost accurate block size,
 	gasPool  *core.GasPool  // available gas used to pack transactions
 	coinbase common.Address
 
@@ -105,6 +112,7 @@ func (env *environment) copy() *environment {
 		signer:   env.signer,
 		state:    env.state.Copy(),
 		tcount:   env.tcount,
+		size:     env.size,
 		coinbase: env.coinbase,
 		header:   types.CopyHeader(env.header),
 		receipts: copyReceipts(env.receipts),
@@ -895,6 +903,13 @@ LOOP:
 			txs.Pop()
 			continue
 		}
+		// If we don't have enough size left for the next transaction, skip it.
+		if env.size+uint32(tx.Size())+blockReserveSize > params.MaxMessageSize {
+			log.Trace("Not enough size left for transaction", "hash", ltx.Hash,
+				"env.size", env.size, "needed", uint32(tx.Size()))
+			txs.Pop()
+			continue
+		}
 		// Error may be ignored here. The error has already been checked
 		// during transaction acceptance is the transaction pool.
 		from, _ := types.Sender(env.signer, tx)
@@ -920,6 +935,7 @@ LOOP:
 			// Everything ok, collect the logs and shift in the next transaction from the same account
 			coalescedLogs = append(coalescedLogs, logs...)
 			env.tcount++
+			env.size += uint32(tx.Size()) // size of BlobTxSidecar included
 			txs.Shift()
 
 		default:
@@ -1055,6 +1071,9 @@ func (w *worker) prepareWork(genParams *generateParams) (*environment, error) {
 		vmenv := vm.NewEVM(context, vm.TxContext{}, env.state, w.chainConfig, vm.Config{})
 		core.ProcessBeaconBlockRoot(*header.ParentBeaconRoot, vmenv, env.state)
 	}
+
+	env.size = uint32(env.header.Size())
+
 	return env, nil
 }
 

params/protocol_params.go

@@ -29,6 +29,8 @@ const (
 	GenesisGasLimit      uint64 = 4712388            // Gas limit of the Genesis block.
 	PayBidTxGasLimit     uint64 = 25000              // Gas limit of the PayBidTx in the types.BidArgs.
 
+	MaxMessageSize uint32 = 10 * 1024 * 1024 // MaxMessageSize is the maximum cap on the size of a eth protocol message.
+
 	MaximumExtraDataSize  uint64 = 32       // Maximum size extra data may be after Genesis.
 	ForkIDSize            uint64 = 4        // The length of fork id
 	ExpByteGas            uint64 = 10       // Times ceil(log256(exponent)) for the EXP instruction.

params/version.go

@@ -23,7 +23,7 @@ import (
 const (
 	VersionMajor = 1  // Major version component of the current release
 	VersionMinor = 4  // Minor version component of the current release
-	VersionPatch = 13 // Patch version component of the current release
+	VersionPatch = 15 // Patch version component of the current release
 	VersionMeta  = "" // Version metadata to append to the version string
 )