Add Scroll bootnode config (#261)

* add Scroll bootnode config

* expose scroll networks on node CLI

* add alpha genesis config

* fix scroll genesis config

* update default sync mode

* address todos

* remove scroll staging network

* bump version

* update genesis config

* bump version

Author: Thegaram

cmd/geth/chaincmd.go

@@ -70,6 +70,7 @@ It expects the genesis file as argument.`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Category: "BLOCKCHAIN COMMANDS",
 		Description: `

cmd/geth/consolecmd.go

@@ -137,6 +137,8 @@ func remoteConsole(ctx *cli.Context) error {
 				path = filepath.Join(path, "goerli")
 			} else if ctx.GlobalBool(utils.SepoliaFlag.Name) {
 				path = filepath.Join(path, "sepolia")
+			} else if ctx.GlobalBool(utils.ScrollAlphaFlag.Name) {
+				path = filepath.Join(path, "scroll-alpha")
 			}
 		}
 		endpoint = fmt.Sprintf("%s/geth.ipc", path)

cmd/geth/dbcmd.go

@@ -85,6 +85,7 @@ Remove blockchain and state databases`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Usage:       "Inspect the storage size for each type of data in the database",
 		Description: `This commands iterates the entire database. If the optional 'prefix' and 'start' arguments are provided, then the iteration is limited to the given subset of data.`,
@@ -101,6 +102,7 @@ Remove blockchain and state databases`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 	}
 	dbCompactCmd = cli.Command{
@@ -115,6 +117,7 @@ Remove blockchain and state databases`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 			utils.CacheFlag,
 			utils.CacheDatabaseFlag,
 		},
@@ -135,6 +138,7 @@ corruption if it is aborted during execution'!`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Description: "This command looks up the specified database key from the database.",
 	}
@@ -151,6 +155,7 @@ corruption if it is aborted during execution'!`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Description: `This command deletes the specified database key from the database. 
 WARNING: This is a low-level operation which may cause database corruption!`,
@@ -168,6 +173,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Description: `This command sets a given database key to the given value. 
 WARNING: This is a low-level operation which may cause database corruption!`,
@@ -185,6 +191,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Description: "This command looks up the specified database key from the database.",
 	}
@@ -201,6 +208,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 			utils.SepoliaFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Description: "This command displays information about the freezer index.",
 	}
@@ -216,6 +224,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 			utils.RopstenFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Description: "The import command imports the specific chain data from an RLP encoded stream.",
 	}
@@ -231,6 +240,7 @@ WARNING: This is a low-level operation which may cause database corruption!`,
 			utils.RopstenFlag,
 			utils.RinkebyFlag,
 			utils.GoerliFlag,
+			utils.ScrollAlphaFlag,
 		},
 		Description: "Exports the specified chain data to an RLP encoded stream, optionally gzip-compressed.",
 	}

cmd/geth/main.go

@@ -145,6 +145,7 @@ var (
 		utils.SepoliaFlag,
 		utils.RinkebyFlag,
 		utils.GoerliFlag,
+		utils.ScrollAlphaFlag,
 		utils.VMEnableDebugFlag,
 		utils.NetworkIdFlag,
 		utils.EthStatsURLFlag,
@@ -279,6 +280,9 @@ func prepare(ctx *cli.Context) {
 	case ctx.GlobalIsSet(utils.GoerliFlag.Name):
 		log.Info("Starting Geth on Görli testnet...")
 
+	case ctx.GlobalIsSet(utils.ScrollAlphaFlag.Name):
+		log.Info("Starting l2geth on Scroll Alpha testnet...")
+
 	case ctx.GlobalIsSet(utils.DeveloperFlag.Name):
 		log.Info("Starting Geth in ephemeral dev mode...")
 
@@ -288,7 +292,7 @@ func prepare(ctx *cli.Context) {
 	// If we're a full node on mainnet without --cache specified, bump default cache allowance
 	if ctx.GlobalString(utils.SyncModeFlag.Name) != "light" && !ctx.GlobalIsSet(utils.CacheFlag.Name) && !ctx.GlobalIsSet(utils.NetworkIdFlag.Name) {
 		// Make sure we're not on any supported preconfigured testnet either
-		if !ctx.GlobalIsSet(utils.RopstenFlag.Name) && !ctx.GlobalIsSet(utils.RinkebyFlag.Name) && !ctx.GlobalIsSet(utils.GoerliFlag.Name) && !ctx.GlobalIsSet(utils.DeveloperFlag.Name) {
+		if !ctx.GlobalIsSet(utils.RopstenFlag.Name) && !ctx.GlobalIsSet(utils.RinkebyFlag.Name) && !ctx.GlobalIsSet(utils.GoerliFlag.Name) && !ctx.GlobalIsSet(utils.ScrollAlphaFlag.Name) && !ctx.GlobalIsSet(utils.DeveloperFlag.Name) {
 			// Nope, we're really on mainnet. Bump that cache up!
 			log.Info("Bumping default cache on mainnet", "provided", ctx.GlobalInt(utils.CacheFlag.Name), "updated", 4096)
 			ctx.GlobalSet(utils.CacheFlag.Name, strconv.Itoa(4096))

cmd/geth/snapshot.go

@@ -66,6 +66,7 @@ var (
 					utils.SepoliaFlag,
 					utils.RinkebyFlag,
 					utils.GoerliFlag,
+					utils.ScrollAlphaFlag,
 					utils.CacheTrieJournalFlag,
 					utils.BloomFilterSizeFlag,
 				},
@@ -97,6 +98,7 @@ the trie clean cache with default directory will be deleted.
 					utils.SepoliaFlag,
 					utils.RinkebyFlag,
 					utils.GoerliFlag,
+					utils.ScrollAlphaFlag,
 				},
 				Description: `
 geth snapshot verify-state <state-root>
@@ -118,6 +120,7 @@ In other words, this command does the snapshot to trie conversion.
 					utils.SepoliaFlag,
 					utils.RinkebyFlag,
 					utils.GoerliFlag,
+					utils.ScrollAlphaFlag,
 				},
 				Description: `
 geth snapshot traverse-state <state-root>
@@ -141,6 +144,7 @@ It's also usable without snapshot enabled.
 					utils.SepoliaFlag,
 					utils.RinkebyFlag,
 					utils.GoerliFlag,
+					utils.ScrollAlphaFlag,
 				},
 				Description: `
 geth snapshot traverse-rawstate <state-root>
@@ -165,6 +169,7 @@ It's also usable without snapshot enabled.
 					utils.SepoliaFlag,
 					utils.RinkebyFlag,
 					utils.GoerliFlag,
+					utils.ScrollAlphaFlag,
 					utils.ExcludeCodeFlag,
 					utils.ExcludeStorageFlag,
 					utils.StartKeyFlag,

cmd/geth/usage.go

@@ -47,6 +47,7 @@ var AppHelpFlagGroups = []flags.FlagGroup{
 			utils.RinkebyFlag,
 			utils.RopstenFlag,
 			utils.SepoliaFlag,
+			utils.ScrollAlphaFlag,
 			utils.SyncModeFlag,
 			utils.ExitWhenSyncedFlag,
 			utils.GCModeFlag,

cmd/utils/flags.go

@@ -160,6 +160,10 @@ var (
 		Name:  "sepolia",
 		Usage: "Sepolia network: pre-configured proof-of-work test network",
 	}
+	ScrollAlphaFlag = cli.BoolFlag{
+		Name:  "scroll-alpha",
+		Usage: "Scroll Alpha test network",
+	}
 	DeveloperFlag = cli.BoolFlag{
 		Name:  "dev",
 		Usage: "Ephemeral proof-of-authority network with a pre-funded developer account, mining enabled",
@@ -811,6 +815,9 @@ func MakeDataDir(ctx *cli.Context) string {
 		if ctx.GlobalBool(SepoliaFlag.Name) {
 			return filepath.Join(path, "sepolia")
 		}
+		if ctx.GlobalBool(ScrollAlphaFlag.Name) {
+			return filepath.Join(path, "scroll-alpha")
+		}
 		return path
 	}
 	Fatalf("Cannot determine default data directory, please set manually (--datadir)")
@@ -865,6 +872,8 @@ func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
 		urls = params.RinkebyBootnodes
 	case ctx.GlobalBool(GoerliFlag.Name):
 		urls = params.GoerliBootnodes
+	case ctx.GlobalBool(ScrollAlphaFlag.Name):
+		urls = params.ScrollAlphaBootnodes
 	case cfg.BootstrapNodes != nil:
 		return // already set, don't apply defaults.
 	}
@@ -1286,6 +1295,8 @@ func setDataDir(ctx *cli.Context, cfg *node.Config) {
 		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "goerli")
 	case ctx.GlobalBool(SepoliaFlag.Name) && cfg.DataDir == node.DefaultDataDir():
 		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "sepolia")
+	case ctx.GlobalBool(ScrollAlphaFlag.Name) && cfg.DataDir == node.DefaultDataDir():
+		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "scroll-alpha")
 	}
 }
 
@@ -1471,7 +1482,7 @@ func CheckExclusive(ctx *cli.Context, args ...interface{}) {
 // SetEthConfig applies eth-related command line flags to the config.
 func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 	// Avoid conflicting network flags
-	CheckExclusive(ctx, MainnetFlag, DeveloperFlag, RopstenFlag, RinkebyFlag, GoerliFlag, SepoliaFlag)
+	CheckExclusive(ctx, MainnetFlag, DeveloperFlag, RopstenFlag, RinkebyFlag, GoerliFlag, SepoliaFlag, ScrollAlphaFlag)
 	CheckExclusive(ctx, LightServeFlag, SyncModeFlag, "light")
 	CheckExclusive(ctx, DeveloperFlag, ExternalSignerFlag) // Can't use both ephemeral unlocked and external signer
 	if ctx.GlobalString(GCModeFlag.Name) == "archive" && ctx.GlobalUint64(TxLookupLimitFlag.Name) != 0 {
@@ -1633,6 +1644,12 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 		}
 		cfg.Genesis = core.DefaultGoerliGenesisBlock()
 		SetDNSDiscoveryDefaults(cfg, params.GoerliGenesisHash)
+	case ctx.GlobalBool(ScrollAlphaFlag.Name):
+		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
+			cfg.NetworkId = 534353
+		}
+		cfg.Genesis = core.DefaultScrollAlphaGenesisBlock()
+		// SetDNSDiscoveryDefaults(cfg, params.ScrollAlphaGenesisHash)
 	case ctx.GlobalBool(DeveloperFlag.Name):
 		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
 			cfg.NetworkId = 1337
@@ -1855,6 +1872,8 @@ func MakeGenesis(ctx *cli.Context) *core.Genesis {
 		genesis = core.DefaultRinkebyGenesisBlock()
 	case ctx.GlobalBool(GoerliFlag.Name):
 		genesis = core.DefaultGoerliGenesisBlock()
+	case ctx.GlobalBool(ScrollAlphaFlag.Name):
+		genesis = core.DefaultScrollAlphaGenesisBlock()
 	case ctx.GlobalBool(DeveloperFlag.Name):
 		Fatalf("Developer chains are ephemeral")
 	}

core/genesis.go

@@ -435,6 +435,18 @@ func DefaultSepoliaGenesisBlock() *Genesis {
 	}
 }
 
+// DefaultScrollAlphaGenesisBlock returns the Scroll Alpha network genesis block.
+func DefaultScrollAlphaGenesisBlock() *Genesis {
+	return &Genesis{
+		Config:     params.ScrollAlphaChainConfig,
+		Timestamp:  0x63f67207,
+		ExtraData:  hexutil.MustDecode("0x0000000000000000000000000000000000000000000000000000000000000000b7C0c58702D0781C0e2eB3aaE301E4c340073448Ec9c139eFCBBe6323DA406fffBF4Db02a60A9720589c71deC4302fE718bE62350c174922782Cc6600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"),
+		GasLimit:   8000000,
+		Difficulty: big.NewInt(1),
+		Alloc:      decodePrealloc(scrollAlphaAllocData),
+	}
+}
+
 // DeveloperGenesisBlock returns the 'geth --dev' genesis block.
 func DeveloperGenesisBlock(period uint64, gasLimit uint64, faucet common.Address) *Genesis {
 	// Override the default period to the user requested one
@@ -467,7 +479,40 @@ func DeveloperGenesisBlock(period uint64, gasLimit uint64, faucet common.Address
 	}
 }
 
+// decodePrealloc does not support code and storage in prealloc config,
+// so we provide an alternative implementation here.
+func decodePreallocScroll(data string) (GenesisAlloc, error) {
+	var p []struct {
+		Addr, Balance *big.Int
+		Code          []byte
+		Storage       []struct{ Key, Value *big.Int }
+	}
+
+	if err := rlp.NewStream(strings.NewReader(data), 0).Decode(&p); err != nil {
+		return nil, err
+	}
+	ga := make(GenesisAlloc, len(p))
+
+	for _, account := range p {
+		s := make(map[common.Hash]common.Hash)
+		for _, entry := range account.Storage {
+			s[common.BigToHash(entry.Key)] = common.BigToHash(entry.Value)
+		}
+
+		ga[common.BigToAddress(account.Addr)] = GenesisAccount{
+			Balance: account.Balance,
+			Code:    account.Code,
+			Storage: s,
+		}
+	}
+
+	return ga, nil
+}
+
 func decodePrealloc(data string) GenesisAlloc {
+	if ga, err := decodePreallocScroll(data); err == nil {
+		return ga
+	}
 	var p []struct{ Addr, Balance *big.Int }
 	if err := rlp.NewStream(strings.NewReader(data), 0).Decode(&p); err != nil {
 		panic(err)