// Copyright 2015 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package utils
import (
"crypto/ecdsa"
"fmt"
"io/ioutil"
"math"
"math/big"
"math/rand"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"time"
"github.com/codegangsta/cli"
"github.com/ethereum/ethash"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p/discover"
"github.com/ethereum/go-ethereum/p2p/nat"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/pow"
"github.com/ethereum/go-ethereum/release"
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/whisper"
)
func init() {
cli.AppHelpTemplate = `{{.Name}} {{if .Flags}}[global options] {{end}}command{{if .Flags}} [command options]{{end}} [arguments...]
VERSION:
{{.Version}}
COMMANDS:
{{range .Commands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
{{end}}{{if .Flags}}
GLOBAL OPTIONS:
{{range .Flags}}{{.}}
{{end}}{{end}}
`
cli.CommandHelpTemplate = `{{.Name}}{{if .Subcommands}} command{{end}}{{if .Flags}} [command options]{{end}} [arguments...]
{{if .Description}}{{.Description}}
{{end}}{{if .Subcommands}}
SUBCOMMANDS:
{{range .Subcommands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
{{end}}{{end}}{{if .Flags}}
OPTIONS:
{{range .Flags}}{{.}}
{{end}}{{end}}
`
}
// NewApp creates an app with sane defaults.
func NewApp(version, usage string) *cli.App {
app := cli.NewApp()
app.Name = filepath.Base(os.Args[0])
app.Author = ""
//app.Authors = nil
app.Email = ""
app.Version = version
app.Usage = usage
return app
}
// These are all the command line flags we support.
// If you add to this list, please remember to include the
// flag in the appropriate command definition.
//
// The flags are defined here so their names and help texts
// are the same for all commands.
var (
// General settings
DataDirFlag = DirectoryFlag{
Name: "datadir",
Usage: "Data directory for the databases and keystore",
Value: DirectoryString{common.DefaultDataDir()},
}
KeyStoreDirFlag = DirectoryFlag{
Name: "keystore",
Usage: "Directory for the keystore (default = inside the datadir)",
}
NetworkIdFlag = cli.IntFlag{
Name: "networkid",
Usage: "Network identifier (integer, 0=Olympic, 1=Frontier, 2=Morden)",
Value: eth.NetworkId,
}
OlympicFlag = cli.BoolFlag{
Name: "olympic",
Usage: "Olympic network: pre-configured pre-release test network",
}
TestNetFlag = cli.BoolFlag{
Name: "testnet",
Usage: "Morden network: pre-configured test network with modified starting nonces (replay protection)",
}
DevModeFlag = cli.BoolFlag{
Name: "dev",
Usage: "Developer mode: pre-configured private network with several debugging flags",
}
GenesisFileFlag = cli.StringFlag{
Name: "genesis",
Usage: "Insert/overwrite the genesis block (JSON format)",
}
IdentityFlag = cli.StringFlag{
Name: "identity",
Usage: "Custom node name",
}
NatspecEnabledFlag = cli.BoolFlag{
Name: "natspec",
Usage: "Enable NatSpec confirmation notice",
}
DocRootFlag = DirectoryFlag{
Name: "docroot",
Usage: "Document Root for HTTPClient file scheme",
Value: DirectoryString{common.HomeDir()},
}
CacheFlag = cli.IntFlag{
Name: "cache",
Usage: "Megabytes of memory allocated to internal caching (min 16MB / database forced)",
Value: 128,
}
BlockchainVersionFlag = cli.IntFlag{
Name: "blockchainversion",
Usage: "Blockchain version (integer)",
Value: core.BlockChainVersion,
}
FastSyncFlag = cli.BoolFlag{
Name: "fast",
Usage: "Enable fast syncing through state downloads",
}
LightKDFFlag = cli.BoolFlag{
Name: "lightkdf",
Usage: "Reduce key-derivation RAM & CPU usage at some expense of KDF strength",
}
// Miner settings
// TODO: refactor CPU vs GPU mining flags
MiningEnabledFlag = cli.BoolFlag{
Name: "mine",
Usage: "Enable mining",
}
MinerThreadsFlag = cli.IntFlag{
Name: "minerthreads",
Usage: "Number of CPU threads to use for mining",
Value: runtime.NumCPU(),
}
MiningGPUFlag = cli.StringFlag{
Name: "minergpus",
Usage: "List of GPUs to use for mining (e.g. '0,1' will use the first two GPUs found)",
}
TargetGasLimitFlag = cli.StringFlag{
Name: "targetgaslimit",
Usage: "Target gas limit sets the artificial target gas floor for the blocks to mine",
Value: params.GenesisGasLimit.String(),
}
AutoDAGFlag = cli.BoolFlag{
Name: "autodag",
Usage: "Enable automatic DAG pregeneration",
}
EtherbaseFlag = cli.StringFlag{
Name: "etherbase",
Usage: "Public address for block mining rewards (default = first account created)",
Value: "0",
}
GasPriceFlag = cli.StringFlag{
Name: "gasprice",
Usage: "Minimal gas price to accept for mining a transactions",
Value: new(big.Int).Mul(big.NewInt(20), common.Shannon).String(),
}
ExtraDataFlag = cli.StringFlag{
Name: "extradata",
Usage: "Block extra data set by the miner (default = client version)",
}
// Account settings
UnlockedAccountFlag = cli.StringFlag{
Name: "unlock",
Usage: "Comma separated list of accounts to unlock",
Value: "",
}
PasswordFileFlag = cli.StringFlag{
Name: "password",
Usage: "Password file to use for non-inteactive password input",
Value: "",
}
VMForceJitFlag = cli.BoolFlag{
Name: "forcejit",
Usage: "Force the JIT VM to take precedence",
}
VMJitCacheFlag = cli.IntFlag{
Name: "jitcache",
Usage: "Amount of cached JIT VM programs",
Value: 64,
}
VMEnableJitFlag = cli.BoolFlag{
Name: "jitvm",
Usage: "Enable the JIT VM",
}
// logging and debug settings
MetricsEnabledFlag = cli.BoolFlag{
Name: metrics.MetricsEnabledFlag,
Usage: "Enable metrics collection and reporting",
}
FakePoWFlag = cli.BoolFlag{
Name: "fakepow",
Usage: "Disables proof-of-work verification",
}
// RPC settings
RPCEnabledFlag = cli.BoolFlag{
Name: "rpc",
Usage: "Enable the HTTP-RPC server",
}
RPCListenAddrFlag = cli.StringFlag{
Name: "rpcaddr",
Usage: "HTTP-RPC server listening interface",
Value: common.DefaultHTTPHost,
}
RPCPortFlag = cli.IntFlag{
Name: "rpcport",
Usage: "HTTP-RPC server listening port",
Value: common.DefaultHTTPPort,
}
RPCCORSDomainFlag = cli.StringFlag{
Name: "rpccorsdomain",
Usage: "Comma separated list of domains from which to accept cross origin requests (browser enforced)",
Value: "",
}
RPCApiFlag = cli.StringFlag{
Name: "rpcapi",
Usage: "API's offered over the HTTP-RPC interface",
Value: rpc.DefaultHTTPApis,
}
IPCDisabledFlag = cli.BoolFlag{
Name: "ipcdisable",
Usage: "Disable the IPC-RPC server",
}
IPCApiFlag = cli.StringFlag{
Name: "ipcapi",
Usage: "API's offered over the IPC-RPC interface",
Value: rpc.DefaultIPCApis,
}
IPCPathFlag = DirectoryFlag{
Name: "ipcpath",
Usage: "Filename for IPC socket/pipe within the datadir (explicit paths escape it)",
Value: DirectoryString{common.DefaultIPCSocket},
}
WSEnabledFlag = cli.BoolFlag{
Name: "ws",
Usage: "Enable the WS-RPC server",
}
WSListenAddrFlag = cli.StringFlag{
Name: "wsaddr",
Usage: "WS-RPC server listening interface",
Value: common.DefaultWSHost,
}
WSPortFlag = cli.IntFlag{
Name: "wsport",
Usage: "WS-RPC server listening port",
Value: common.DefaultWSPort,
}
WSApiFlag = cli.StringFlag{
Name: "wsapi",
Usage: "API's offered over the WS-RPC interface",
Value: rpc.DefaultHTTPApis,
}
WSAllowedOriginsFlag = cli.StringFlag{
Name: "wsorigins",
Usage: "Origins from which to accept websockets requests",
Value: "",
}
ExecFlag = cli.StringFlag{
Name: "exec",
Usage: "Execute JavaScript statement (only in combination with console/attach)",
}
PreloadJSFlag = cli.StringFlag{
Name: "preload",
Usage: "Comma separated list of JavaScript files to preload into the console",
}
// Network Settings
MaxPeersFlag = cli.IntFlag{
Name: "maxpeers",
Usage: "Maximum number of network peers (network disabled if set to 0)",
Value: 25,
}
MaxPendingPeersFlag = cli.IntFlag{
Name: "maxpendpeers",
Usage: "Maximum number of pending connection attempts (defaults used if set to 0)",
Value: 0,
}
ListenPortFlag = cli.IntFlag{
Name: "port",
Usage: "Network listening port",
Value: 30303,
}
BootnodesFlag = cli.StringFlag{
Name: "bootnodes",
Usage: "Comma separated enode URLs for P2P discovery bootstrap",
Value: "",
}
NodeKeyFileFlag = cli.StringFlag{
Name: "nodekey",
Usage: "P2P node key file",
}
NodeKeyHexFlag = cli.StringFlag{
Name: "nodekeyhex",
Usage: "P2P node key as hex (for testing)",
}
NATFlag = cli.StringFlag{
Name: "nat",
Usage: "NAT port mapping mechanism (any|none|upnp|pmp|extip:<IP>)",
Value: "any",
}
NoDiscoverFlag = cli.BoolFlag{
Name: "nodiscover",
Usage: "Disables the peer discovery mechanism (manual peer addition)",
}
WhisperEnabledFlag = cli.BoolFlag{
Name: "shh",
Usage: "Enable Whisper",
}
// ATM the url is left to the user and deployment to
JSpathFlag = cli.StringFlag{
Name: "jspath",
Usage: "JavaScript root path for `loadScript` and document root for `admin.httpGet`",
Value: ".",
}
SolcPathFlag = cli.StringFlag{
Name: "solc",
Usage: "Solidity compiler command to be used",
Value: "solc",
}
// Gas price oracle settings
GpoMinGasPriceFlag = cli.StringFlag{
Name: "gpomin",
Usage: "Minimum suggested gas price",
Value: new(big.Int).Mul(big.NewInt(20), common.Shannon).String(),
}
GpoMaxGasPriceFlag = cli.StringFlag{
Name: "gpomax",
Usage: "Maximum suggested gas price",
Value: new(big.Int).Mul(big.NewInt(500), common.Shannon).String(),
}
GpoFullBlockRatioFlag = cli.IntFlag{
Name: "gpofull",
Usage: "Full block threshold for gas price calculation (%)",
Value: 80,
}
GpobaseStepDownFlag = cli.IntFlag{
Name: "gpobasedown",
Usage: "Suggested gas price base step down ratio (1/1000)",
Value: 10,
}
GpobaseStepUpFlag = cli.IntFlag{
Name: "gpobaseup",
Usage: "Suggested gas price base step up ratio (1/1000)",
Value: 100,
}
GpobaseCorrectionFactorFlag = cli.IntFlag{
Name: "gpobasecf",
Usage: "Suggested gas price base correction factor (%)",
Value: 110,
}
)
// MustMakeDataDir retrieves the currently requested data directory, terminating
// if none (or the empty string) is specified. If the node is starting a testnet,
// the a subdirectory of the specified datadir will be used.
func MustMakeDataDir(ctx *cli.Context) string {
if path := ctx.GlobalString(DataDirFlag.Name); path != "" {
if ctx.GlobalBool(TestNetFlag.Name) {
return filepath.Join(path, "/testnet")
}
return path
}
Fatalf("Cannot determine default data directory, please set manually (--datadir)")
return ""
}
// MakeKeyStoreDir resolves the folder to use for storing the account keys from the
// set command line flags, returning the explicitly requested path, or one inside
// the data directory otherwise.
func MakeKeyStoreDir(datadir string, ctx *cli.Context) string {
if path := ctx.GlobalString(KeyStoreDirFlag.Name); path != "" {
return path
}
return filepath.Join(datadir, "keystore")
}
// MakeIPCPath creates an IPC path configuration from the set command line flags,
// returning an empty string if IPC was explicitly disabled, or the set path.
func MakeIPCPath(ctx *cli.Context) string {
if ctx.GlobalBool(IPCDisabledFlag.Name) {
return ""
}
return ctx.GlobalString(IPCPathFlag.Name)
}
// MakeNodeKey creates a node key from set command line flags, either loading it
// from a file or as a specified hex value. If neither flags were provided, this
// method returns nil and an emphemeral key is to be generated.
func MakeNodeKey(ctx *cli.Context) *ecdsa.PrivateKey {
var (
hex = ctx.GlobalString(NodeKeyHexFlag.Name)
file = ctx.GlobalString(NodeKeyFileFlag.Name)
key *ecdsa.PrivateKey
err error
)
switch {
case file != "" && hex != "":
Fatalf("Options %q and %q are mutually exclusive", NodeKeyFileFlag.Name, NodeKeyHexFlag.Name)
case file != "":
if key, err = crypto.LoadECDSA(file); err != nil {
Fatalf("Option %q: %v", NodeKeyFileFlag.Name, err)
}
case hex != "":
if key, err = crypto.HexToECDSA(hex); err != nil {
Fatalf("Option %q: %v", NodeKeyHexFlag.Name, err)
}
}
return key
}
// MakeNodeName creates a node name from a base set and the command line flags.
func MakeNodeName(client, version string, ctx *cli.Context) string {
name := common.MakeName(client, version)
if identity := ctx.GlobalString(IdentityFlag.Name); len(identity) > 0 {
name += "/" + identity
}
if ctx.GlobalBool(VMEnableJitFlag.Name) {
name += "/JIT"
}
return name
}
// MakeBootstrapNodes creates a list of bootstrap nodes from the command line
// flags, reverting to pre-configured ones if none have been specified.
func MakeBootstrapNodes(ctx *cli.Context) []*discover.Node {
// Return pre-configured nodes if none were manually requested
if !ctx.GlobalIsSet(BootnodesFlag.Name) {
if ctx.GlobalBool(TestNetFlag.Name) {
return TestNetBootNodes
}
return FrontierBootNodes
}
// Otherwise parse and use the CLI bootstrap nodes
bootnodes := []*discover.Node{}
for _, url := range strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",") {
node, err := discover.ParseNode(url)
if err != nil {
glog.V(logger.Error).Infof("Bootstrap URL %s: %v\n", url, err)
continue
}
bootnodes = append(bootnodes, node)
}
return bootnodes
}
// MakeListenAddress creates a TCP listening address string from set command
// line flags.
func MakeListenAddress(ctx *cli.Context) string {
return fmt.Sprintf(":%d", ctx.GlobalInt(ListenPortFlag.Name))
}
// MakeNAT creates a port mapper from set command line flags.
func MakeNAT(ctx *cli.Context) nat.Interface {
natif, err := nat.Parse(ctx.GlobalString(NATFlag.Name))
if err != nil {
Fatalf("Option %s: %v", NATFlag.Name, err)
}
return natif
}
// MakeRPCModules splits input separated by a comma and trims excessive white
// space from the substrings.
func MakeRPCModules(input string) []string {
result := strings.Split(input, ",")
for i, r := range result {
result[i] = strings.TrimSpace(r)
}
return result
}
// MakeHTTPRpcHost creates the HTTP RPC listener interface string from the set
// command line flags, returning empty if the HTTP endpoint is disabled.
func MakeHTTPRpcHost(ctx *cli.Context) string {
if !ctx.GlobalBool(RPCEnabledFlag.Name) {
return ""
}
return ctx.GlobalString(RPCListenAddrFlag.Name)
}
// MakeWSRpcHost creates the WebSocket RPC listener interface string from the set
// command line flags, returning empty if the HTTP endpoint is disabled.
func MakeWSRpcHost(ctx *cli.Context) string {
if !ctx.GlobalBool(WSEnabledFlag.Name) {
return ""
}
return ctx.GlobalString(WSListenAddrFlag.Name)
}
// MakeGenesisBlock loads up a genesis block from an input file specified in the
// command line, or returns the empty string if none set.
func MakeGenesisBlock(ctx *cli.Context) string {
genesis := ctx.GlobalString(GenesisFileFlag.Name)
if genesis == "" {
return ""
}
data, err := ioutil.ReadFile(genesis)
if err != nil {
Fatalf("Failed to load custom genesis file: %v", err)
}
return string(data)
}
// MakeDatabaseHandles raises out the number of allowed file handles per process
// for Geth and returns half of the allowance to assign to the database.
func MakeDatabaseHandles() int {
if err := raiseFdLimit(2048); err != nil {
Fatalf("Failed to raise file descriptor allowance: %v", err)
}
limit, err := getFdLimit()
if err != nil {
Fatalf("Failed to retrieve file descriptor allowance: %v", err)
}
if limit > 2048 { // cap database file descriptors even if more is available
limit = 2048
}
return limit / 2 // Leave half for networking and other stuff
}
// MakeAccountManager creates an account manager from set command line flags.
func MakeAccountManager(ctx *cli.Context) *accounts.Manager {
// Create the keystore crypto primitive, light if requested
scryptN := accounts.StandardScryptN
scryptP := accounts.StandardScryptP
if ctx.GlobalBool(LightKDFFlag.Name) {
scryptN = accounts.LightScryptN
scryptP = accounts.LightScryptP
}
datadir := MustMakeDataDir(ctx)
keydir := MakeKeyStoreDir(datadir, ctx)
return accounts.NewManager(keydir, scryptN, scryptP)
}
// MakeAddress converts an account specified directly as a hex encoded string or
// a key index in the key store to an internal account representation.
func MakeAddress(accman *accounts.Manager, account string) (accounts.Account, error) {
// If the specified account is a valid address, return it
if common.IsHexAddress(account) {
return accounts.Account{Address: common.HexToAddress(account)}, nil
}
// Otherwise try to interpret the account as a keystore index
index, err := strconv.Atoi(account)
if err != nil {
return accounts.Account{}, fmt.Errorf("invalid account address or index %q", account)
}
return accman.AccountByIndex(index)
}
// MakeEtherbase retrieves the etherbase either from the directly specified
// command line flags or from the keystore if CLI indexed.
func MakeEtherbase(accman *accounts.Manager, ctx *cli.Context) common.Address {
accounts := accman.Accounts()
if !ctx.GlobalIsSet(EtherbaseFlag.Name) && len(accounts) == 0 {
glog.V(logger.Error).Infoln("WARNING: No etherbase set and no accounts found as default")
return common.Address{}
}
etherbase := ctx.GlobalString(EtherbaseFlag.Name)
if etherbase == "" {
return common.Address{}
}
// If the specified etherbase is a valid address, return it
account, err := MakeAddress(accman, etherbase)
if err != nil {
Fatalf("Option %q: %v", EtherbaseFlag.Name, err)
}
return account.Address
}
// MakeMinerExtra resolves extradata for the miner from the set command line flags
// or returns a default one composed on the client, runtime and OS metadata.
func MakeMinerExtra(extra []byte, ctx *cli.Context) []byte {
if ctx.GlobalIsSet(ExtraDataFlag.Name) {
return []byte(ctx.GlobalString(ExtraDataFlag.Name))
}
return extra
}
// MakePasswordList reads password lines from the file specified by --password.
func MakePasswordList(ctx *cli.Context) []string {
path := ctx.GlobalString(PasswordFileFlag.Name)
if path == "" {
return nil
}
text, err := ioutil.ReadFile(path)
if err != nil {
Fatalf("Failed to read password file: %v", err)
}
lines := strings.Split(string(text), "\n")
// Sanitise DOS line endings.
for i := range lines {
lines[i] = strings.TrimRight(lines[i], "\r")
}
return lines
}
// MakeSystemNode sets up a local node, configures the services to launch and
// assembles the P2P protocol stack.
func MakeSystemNode(name, version string, relconf release.Config, extra []byte, ctx *cli.Context) *node.Node {
// Avoid conflicting network flags
networks, netFlags := 0, []cli.BoolFlag{DevModeFlag, TestNetFlag, OlympicFlag}
for _, flag := range netFlags {
if ctx.GlobalBool(flag.Name) {
networks++
}
}
if networks > 1 {
Fatalf("The %v flags are mutually exclusive", netFlags)
}
// Configure the node's service container
stackConf := &node.Config{
DataDir: MustMakeDataDir(ctx),
PrivateKey: MakeNodeKey(ctx),
Name: MakeNodeName(name, version, ctx),
NoDiscovery: ctx.GlobalBool(NoDiscoverFlag.Name),
BootstrapNodes: MakeBootstrapNodes(ctx),
ListenAddr: MakeListenAddress(ctx),
NAT: MakeNAT(ctx),
MaxPeers: ctx.GlobalInt(MaxPeersFlag.Name),
MaxPendingPeers: ctx.GlobalInt(MaxPendingPeersFlag.Name),
IPCPath: MakeIPCPath(ctx),
HTTPHost: MakeHTTPRpcHost(ctx),
HTTPPort: ctx.GlobalInt(RPCPortFlag.Name),
HTTPCors: ctx.GlobalString(RPCCORSDomainFlag.Name),
HTTPModules: MakeRPCModules(ctx.GlobalString(RPCApiFlag.Name)),
WSHost: MakeWSRpcHost(ctx),
WSPort: ctx.GlobalInt(WSPortFlag.Name),
WSOrigins: ctx.GlobalString(WSAllowedOriginsFlag.Name),
WSModules: MakeRPCModules(ctx.GlobalString(WSApiFlag.Name)),
}
// Configure the Ethereum service
accman := MakeAccountManager(ctx)
// initialise new random number generator
rand := rand.New(rand.NewSource(time.Now().UnixNano()))
// get enabled jit flag
jitEnabled := ctx.GlobalBool(VMEnableJitFlag.Name)
// if the jit is not enabled enable it for 10 pct of the people
if !jitEnabled && rand.Float64() < 0.1 {
jitEnabled = true
glog.V(logger.Info).Infoln("You're one of the lucky few that will try out the JIT VM (random). If you get a consensus failure please be so kind to report this incident with the block hash that failed. You can switch to the regular VM by setting --jitvm=false")
}
ethConf := ð.Config{
ChainConfig: MustMakeChainConfig(ctx),
Genesis: MakeGenesisBlock(ctx),
FastSync: ctx.GlobalBool(FastSyncFlag.Name),
BlockChainVersion: ctx.GlobalInt(BlockchainVersionFlag.Name),
DatabaseCache: ctx.GlobalInt(CacheFlag.Name),
DatabaseHandles: MakeDatabaseHandles(),
NetworkId: ctx.GlobalInt(NetworkIdFlag.Name),
AccountManager: accman,
Etherbase: MakeEtherbase(accman, ctx),
MinerThreads: ctx.GlobalInt(MinerThreadsFlag.Name),
ExtraData: MakeMinerExtra(extra, ctx),
NatSpec: ctx.GlobalBool(NatspecEnabledFlag.Name),
DocRoot: ctx.GlobalString(DocRootFlag.Name),
EnableJit: jitEnabled,
ForceJit: ctx.GlobalBool(VMForceJitFlag.Name),
GasPrice: common.String2Big(ctx.GlobalString(GasPriceFlag.Name)),
GpoMinGasPrice: common.String2Big(ctx.GlobalString(GpoMinGasPriceFlag.Name)),
GpoMaxGasPrice: common.String2Big(ctx.GlobalString(GpoMaxGasPriceFlag.Name)),
GpoFullBlockRatio: ctx.GlobalInt(GpoFullBlockRatioFlag.Name),
GpobaseStepDown: ctx.GlobalInt(GpobaseStepDownFlag.Name),
GpobaseStepUp: ctx.GlobalInt(GpobaseStepUpFlag.Name),
GpobaseCorrectionFactor: ctx.GlobalInt(GpobaseCorrectionFactorFlag.Name),
SolcPath: ctx.GlobalString(SolcPathFlag.Name),
AutoDAG: ctx.GlobalBool(AutoDAGFlag.Name) || ctx.GlobalBool(MiningEnabledFlag.Name),
}
// Configure the Whisper service
shhEnable := ctx.GlobalBool(WhisperEnabledFlag.Name)
// Override any default configs in dev mode or the test net
switch {
case ctx.GlobalBool(OlympicFlag.Name):
if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
ethConf.NetworkId = 1
}
if !ctx.GlobalIsSet(GenesisFileFlag.Name) {
ethConf.Genesis = core.OlympicGenesisBlock()
}
case ctx.GlobalBool(TestNetFlag.Name):
if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
ethConf.NetworkId = 2
}
if !ctx.GlobalIsSet(GenesisFileFlag.Name) {
ethConf.Genesis = core.TestNetGenesisBlock()
}
state.StartingNonce = 1048576 // (2**20)
case ctx.GlobalBool(DevModeFlag.Name):
// Override the base network stack configs
if !ctx.GlobalIsSet(DataDirFlag.Name) {
stackConf.DataDir = filepath.Join(os.TempDir(), "/ethereum_dev_mode")
}
if !ctx.GlobalIsSet(MaxPeersFlag.Name) {
stackConf.MaxPeers = 0
}
if !ctx.GlobalIsSet(ListenPortFlag.Name) {
stackConf.ListenAddr = ":0"
}
// Override the Ethereum protocol configs
if !ctx.GlobalIsSet(GenesisFileFlag.Name) {
ethConf.Genesis = core.OlympicGenesisBlock()
}
if !ctx.GlobalIsSet(GasPriceFlag.Name) {
ethConf.GasPrice = new(big.Int)
}
if !ctx.GlobalIsSet(WhisperEnabledFlag.Name) {
shhEnable = true
}
ethConf.PowTest = true
}
// Assemble and return the protocol stack
stack, err := node.New(stackConf)
if err != nil {
Fatalf("Failed to create the protocol stack: %v", err)
}
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
return eth.New(ctx, ethConf)
}); err != nil {
Fatalf("Failed to register the Ethereum service: %v", err)
}
if shhEnable {
if err := stack.Register(func(*node.ServiceContext) (node.Service, error) { return whisper.New(), nil }); err != nil {
Fatalf("Failed to register the Whisper service: %v", err)
}
}
if err := stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
return release.NewReleaseService(ctx, relconf)
}); err != nil {
Fatalf("Failed to register the Geth release oracle service: %v", err)
}
return stack
}
// SetupNetwork configures the system for either the main net or some test network.
func SetupNetwork(ctx *cli.Context) {
switch {
case ctx.GlobalBool(OlympicFlag.Name):
params.DurationLimit = big.NewInt(8)
params.GenesisGasLimit = big.NewInt(3141592)
params.MinGasLimit = big.NewInt(125000)
params.MaximumExtraDataSize = big.NewInt(1024)
NetworkIdFlag.Value = 0
core.BlockReward = big.NewInt(1.5e+18)
core.ExpDiffPeriod = big.NewInt(math.MaxInt64)
}
params.TargetGasLimit = common.String2Big(ctx.GlobalString(TargetGasLimitFlag.Name))
}
// MustMakeChainConfig reads the chain configuration from the database in ctx.Datadir.
func MustMakeChainConfig(ctx *cli.Context) *core.ChainConfig {
db := MakeChainDatabase(ctx)
defer db.Close()
return MustMakeChainConfigFromDb(ctx, db)
}
// MustMakeChainConfigFromDb reads the chain configuration from the given database.
func MustMakeChainConfigFromDb(ctx *cli.Context, db ethdb.Database) *core.ChainConfig {
genesis := core.GetBlock(db, core.GetCanonicalHash(db, 0))
if genesis != nil {
// Existing genesis block, use stored config if available.
storedConfig, err := core.GetChainConfig(db, genesis.Hash())
if err == nil {
return storedConfig
} else if err != core.ChainConfigNotFoundErr {
Fatalf("Could not make chain configuration: %v", err)
}
}
var homesteadBlockNo *big.Int
if ctx.GlobalBool(TestNetFlag.Name) {
homesteadBlockNo = params.TestNetHomesteadBlock
} else {
homesteadBlockNo = params.MainNetHomesteadBlock
}
return &core.ChainConfig{HomesteadBlock: homesteadBlockNo}
}
// MakeChainDatabase open an LevelDB using the flags passed to the client and will hard crash if it fails.
func MakeChainDatabase(ctx *cli.Context) ethdb.Database {
var (
datadir = MustMakeDataDir(ctx)
cache = ctx.GlobalInt(CacheFlag.Name)
handles = MakeDatabaseHandles()
)
chainDb, err := ethdb.NewLDBDatabase(filepath.Join(datadir, "chaindata"), cache, handles)
if err != nil {
Fatalf("Could not open database: %v", err)
}
return chainDb
}
// MakeChain creates a chain manager from set command line flags.
func MakeChain(ctx *cli.Context) (chain *core.BlockChain, chainDb ethdb.Database) {
var err error
chainDb = MakeChainDatabase(ctx)
if ctx.GlobalBool(OlympicFlag.Name) {
_, err := core.WriteTestNetGenesisBlock(chainDb)
if err != nil {
glog.Fatalln(err)
}
}
chainConfig := MustMakeChainConfigFromDb(ctx, chainDb)
pow := pow.PoW(core.FakePow{})
if !ctx.GlobalBool(FakePoWFlag.Name) {
pow = ethash.New()
}
chain, err = core.NewBlockChain(chainDb, chainConfig, pow, new(event.TypeMux))
if err != nil {
Fatalf("Could not start chainmanager: %v", err)
}
return chain, chainDb
}
// MakeConsolePreloads retrieves the absolute paths for the console JavaScript
// scripts to preload before starting.
func MakeConsolePreloads(ctx *cli.Context) []string {
// Skip preloading if there's nothing to preload
if ctx.GlobalString(PreloadJSFlag.Name) == "" {
return nil
}
// Otherwise resolve absolute paths and return them
preloads := []string{}
assets := ctx.GlobalString(JSpathFlag.Name)
for _, file := range strings.Split(ctx.GlobalString(PreloadJSFlag.Name), ",") {
preloads = append(preloads, common.AbsolutePath(assets, strings.TrimSpace(file)))
}
return preloads
}
