420 lines
12 KiB
Go
420 lines
12 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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// geth is the official command-line client for Ethereum.
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package main
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import (
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"fmt"
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"math"
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"os"
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godebug "runtime/debug"
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"sort"
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"strconv"
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"strings"
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"time"
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"github.com/elastic/gosigar"
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"github.com/ethereum/go-ethereum/accounts"
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"github.com/ethereum/go-ethereum/accounts/keystore"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/console"
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"github.com/ethereum/go-ethereum/eth"
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"github.com/ethereum/go-ethereum/eth/downloader"
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"github.com/ethereum/go-ethereum/ethclient"
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"github.com/ethereum/go-ethereum/internal/debug"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/metrics"
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"github.com/ethereum/go-ethereum/node"
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cli "gopkg.in/urfave/cli.v1"
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)
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const (
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clientIdentifier = "geth" // Client identifier to advertise over the network
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)
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var (
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// Git SHA1 commit hash of the release (set via linker flags)
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gitCommit = ""
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// The app that holds all commands and flags.
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app = utils.NewApp(gitCommit, "the go-ethereum command line interface")
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// flags that configure the node
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nodeFlags = []cli.Flag{
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utils.IdentityFlag,
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utils.UnlockedAccountFlag,
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utils.PasswordFileFlag,
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utils.BootnodesFlag,
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utils.BootnodesV4Flag,
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utils.BootnodesV5Flag,
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utils.DataDirFlag,
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utils.KeyStoreDirFlag,
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utils.ExternalSignerFlag,
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utils.NoUSBFlag,
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utils.DashboardEnabledFlag,
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utils.DashboardAddrFlag,
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utils.DashboardPortFlag,
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utils.DashboardRefreshFlag,
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utils.EthashCacheDirFlag,
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utils.EthashCachesInMemoryFlag,
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utils.EthashCachesOnDiskFlag,
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utils.EthashDatasetDirFlag,
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utils.EthashDatasetsInMemoryFlag,
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utils.EthashDatasetsOnDiskFlag,
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utils.TxPoolLocalsFlag,
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utils.TxPoolNoLocalsFlag,
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utils.TxPoolJournalFlag,
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utils.TxPoolRejournalFlag,
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utils.TxPoolPriceLimitFlag,
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utils.TxPoolPriceBumpFlag,
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utils.TxPoolAccountSlotsFlag,
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utils.TxPoolGlobalSlotsFlag,
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utils.TxPoolAccountQueueFlag,
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utils.TxPoolGlobalQueueFlag,
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utils.TxPoolLifetimeFlag,
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utils.ULCModeConfigFlag,
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utils.OnlyAnnounceModeFlag,
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utils.ULCTrustedNodesFlag,
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utils.ULCMinTrustedFractionFlag,
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utils.SyncModeFlag,
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utils.ExitWhenSyncedFlag,
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utils.GCModeFlag,
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utils.LightServFlag,
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utils.LightBandwidthInFlag,
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utils.LightBandwidthOutFlag,
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utils.LightPeersFlag,
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utils.LightKDFFlag,
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utils.WhitelistFlag,
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utils.CacheFlag,
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utils.CacheDatabaseFlag,
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utils.CacheTrieFlag,
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utils.CacheGCFlag,
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utils.CacheNoPrefetchFlag,
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utils.ListenPortFlag,
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utils.MaxPeersFlag,
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utils.MaxPendingPeersFlag,
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utils.MiningEnabledFlag,
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utils.MinerThreadsFlag,
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utils.MinerLegacyThreadsFlag,
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utils.MinerNotifyFlag,
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utils.MinerGasTargetFlag,
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utils.MinerLegacyGasTargetFlag,
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utils.MinerGasLimitFlag,
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utils.MinerGasPriceFlag,
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utils.MinerLegacyGasPriceFlag,
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utils.MinerEtherbaseFlag,
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utils.MinerLegacyEtherbaseFlag,
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utils.MinerExtraDataFlag,
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utils.MinerLegacyExtraDataFlag,
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utils.MinerRecommitIntervalFlag,
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utils.MinerNoVerfiyFlag,
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utils.NATFlag,
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utils.NoDiscoverFlag,
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utils.DiscoveryV5Flag,
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utils.NetrestrictFlag,
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utils.NodeKeyFileFlag,
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utils.NodeKeyHexFlag,
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utils.DeveloperFlag,
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utils.DeveloperPeriodFlag,
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utils.TestnetFlag,
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utils.RinkebyFlag,
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utils.GoerliFlag,
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utils.VMEnableDebugFlag,
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utils.NetworkIdFlag,
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utils.ConstantinopleOverrideFlag,
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utils.EthStatsURLFlag,
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utils.FakePoWFlag,
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utils.NoCompactionFlag,
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utils.GpoBlocksFlag,
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utils.GpoPercentileFlag,
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utils.EWASMInterpreterFlag,
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utils.EVMInterpreterFlag,
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configFileFlag,
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}
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rpcFlags = []cli.Flag{
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utils.RPCEnabledFlag,
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utils.RPCListenAddrFlag,
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utils.RPCPortFlag,
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utils.RPCCORSDomainFlag,
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utils.RPCVirtualHostsFlag,
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utils.GraphQLEnabledFlag,
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utils.GraphQLListenAddrFlag,
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utils.GraphQLPortFlag,
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utils.GraphQLCORSDomainFlag,
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utils.GraphQLVirtualHostsFlag,
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utils.RPCApiFlag,
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utils.WSEnabledFlag,
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utils.WSListenAddrFlag,
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utils.WSPortFlag,
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utils.WSApiFlag,
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utils.WSAllowedOriginsFlag,
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utils.IPCDisabledFlag,
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utils.IPCPathFlag,
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utils.InsecureUnlockAllowedFlag,
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utils.RPCGlobalGasCap,
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}
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whisperFlags = []cli.Flag{
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utils.WhisperEnabledFlag,
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utils.WhisperMaxMessageSizeFlag,
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utils.WhisperMinPOWFlag,
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utils.WhisperRestrictConnectionBetweenLightClientsFlag,
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}
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metricsFlags = []cli.Flag{
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utils.MetricsEnabledFlag,
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utils.MetricsEnabledExpensiveFlag,
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utils.MetricsEnableInfluxDBFlag,
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utils.MetricsInfluxDBEndpointFlag,
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utils.MetricsInfluxDBDatabaseFlag,
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utils.MetricsInfluxDBUsernameFlag,
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utils.MetricsInfluxDBPasswordFlag,
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utils.MetricsInfluxDBTagsFlag,
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}
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)
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func init() {
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// Initialize the CLI app and start Geth
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app.Action = geth
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app.HideVersion = true // we have a command to print the version
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app.Copyright = "Copyright 2013-2019 The go-ethereum Authors"
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app.Commands = []cli.Command{
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// See chaincmd.go:
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initCommand,
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importCommand,
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exportCommand,
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importPreimagesCommand,
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exportPreimagesCommand,
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copydbCommand,
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removedbCommand,
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dumpCommand,
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// See accountcmd.go:
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accountCommand,
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walletCommand,
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// See consolecmd.go:
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consoleCommand,
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attachCommand,
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javascriptCommand,
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// See misccmd.go:
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makecacheCommand,
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makedagCommand,
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versionCommand,
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licenseCommand,
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// See config.go
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dumpConfigCommand,
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}
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sort.Sort(cli.CommandsByName(app.Commands))
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app.Flags = append(app.Flags, nodeFlags...)
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app.Flags = append(app.Flags, rpcFlags...)
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app.Flags = append(app.Flags, consoleFlags...)
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app.Flags = append(app.Flags, debug.Flags...)
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app.Flags = append(app.Flags, whisperFlags...)
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app.Flags = append(app.Flags, metricsFlags...)
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app.Before = func(ctx *cli.Context) error {
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logdir := ""
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if ctx.GlobalBool(utils.DashboardEnabledFlag.Name) {
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logdir = (&node.Config{DataDir: utils.MakeDataDir(ctx)}).ResolvePath("logs")
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}
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if err := debug.Setup(ctx, logdir); err != nil {
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return err
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}
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// Cap the cache allowance and tune the garbage collector
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var mem gosigar.Mem
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if err := mem.Get(); err == nil {
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allowance := int(mem.Total / 1024 / 1024 / 3)
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if cache := ctx.GlobalInt(utils.CacheFlag.Name); cache > allowance {
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log.Warn("Sanitizing cache to Go's GC limits", "provided", cache, "updated", allowance)
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ctx.GlobalSet(utils.CacheFlag.Name, strconv.Itoa(allowance))
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}
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}
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// Ensure Go's GC ignores the database cache for trigger percentage
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cache := ctx.GlobalInt(utils.CacheFlag.Name)
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gogc := math.Max(20, math.Min(100, 100/(float64(cache)/1024)))
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log.Debug("Sanitizing Go's GC trigger", "percent", int(gogc))
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godebug.SetGCPercent(int(gogc))
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// Start metrics export if enabled
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utils.SetupMetrics(ctx)
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// Start system runtime metrics collection
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go metrics.CollectProcessMetrics(3 * time.Second)
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return nil
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}
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app.After = func(ctx *cli.Context) error {
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debug.Exit()
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console.Stdin.Close() // Resets terminal mode.
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return nil
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}
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}
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func main() {
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if err := app.Run(os.Args); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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// geth is the main entry point into the system if no special subcommand is ran.
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// It creates a default node based on the command line arguments and runs it in
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// blocking mode, waiting for it to be shut down.
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func geth(ctx *cli.Context) error {
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if args := ctx.Args(); len(args) > 0 {
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return fmt.Errorf("invalid command: %q", args[0])
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}
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node := makeFullNode(ctx)
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defer node.Close()
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startNode(ctx, node)
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node.Wait()
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return nil
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}
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// startNode boots up the system node and all registered protocols, after which
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// it unlocks any requested accounts, and starts the RPC/IPC interfaces and the
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// miner.
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func startNode(ctx *cli.Context, stack *node.Node) {
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debug.Memsize.Add("node", stack)
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// Start up the node itself
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utils.StartNode(stack)
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// Unlock any account specifically requested
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unlockAccounts(ctx, stack)
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// Register wallet event handlers to open and auto-derive wallets
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events := make(chan accounts.WalletEvent, 16)
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stack.AccountManager().Subscribe(events)
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go func() {
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// Create a chain state reader for self-derivation
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rpcClient, err := stack.Attach()
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if err != nil {
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utils.Fatalf("Failed to attach to self: %v", err)
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}
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stateReader := ethclient.NewClient(rpcClient)
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// Open any wallets already attached
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for _, wallet := range stack.AccountManager().Wallets() {
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if err := wallet.Open(""); err != nil {
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log.Warn("Failed to open wallet", "url", wallet.URL(), "err", err)
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}
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}
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// Listen for wallet event till termination
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for event := range events {
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switch event.Kind {
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case accounts.WalletArrived:
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if err := event.Wallet.Open(""); err != nil {
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log.Warn("New wallet appeared, failed to open", "url", event.Wallet.URL(), "err", err)
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}
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case accounts.WalletOpened:
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status, _ := event.Wallet.Status()
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log.Info("New wallet appeared", "url", event.Wallet.URL(), "status", status)
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derivationPath := accounts.DefaultBaseDerivationPath
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if event.Wallet.URL().Scheme == "ledger" {
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derivationPath = accounts.DefaultLedgerBaseDerivationPath
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}
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event.Wallet.SelfDerive(derivationPath, stateReader)
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case accounts.WalletDropped:
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log.Info("Old wallet dropped", "url", event.Wallet.URL())
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event.Wallet.Close()
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}
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}
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}()
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// Spawn a standalone goroutine for status synchronization monitoring,
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// close the node when synchronization is complete if user required.
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if ctx.GlobalBool(utils.ExitWhenSyncedFlag.Name) {
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go func() {
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sub := stack.EventMux().Subscribe(downloader.DoneEvent{})
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defer sub.Unsubscribe()
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for {
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event := <-sub.Chan()
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if event == nil {
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continue
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}
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done, ok := event.Data.(downloader.DoneEvent)
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if !ok {
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continue
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}
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if timestamp := time.Unix(int64(done.Latest.Time), 0); time.Since(timestamp) < 10*time.Minute {
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log.Info("Synchronisation completed", "latestnum", done.Latest.Number, "latesthash", done.Latest.Hash(),
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"age", common.PrettyAge(timestamp))
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stack.Stop()
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}
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}
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}()
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}
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// Start auxiliary services if enabled
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if ctx.GlobalBool(utils.MiningEnabledFlag.Name) || ctx.GlobalBool(utils.DeveloperFlag.Name) {
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// Mining only makes sense if a full Ethereum node is running
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if ctx.GlobalString(utils.SyncModeFlag.Name) == "light" {
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utils.Fatalf("Light clients do not support mining")
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}
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var ethereum *eth.Ethereum
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if err := stack.Service(ðereum); err != nil {
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utils.Fatalf("Ethereum service not running: %v", err)
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}
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// Set the gas price to the limits from the CLI and start mining
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gasprice := utils.GlobalBig(ctx, utils.MinerLegacyGasPriceFlag.Name)
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if ctx.IsSet(utils.MinerGasPriceFlag.Name) {
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gasprice = utils.GlobalBig(ctx, utils.MinerGasPriceFlag.Name)
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}
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ethereum.TxPool().SetGasPrice(gasprice)
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threads := ctx.GlobalInt(utils.MinerLegacyThreadsFlag.Name)
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if ctx.GlobalIsSet(utils.MinerThreadsFlag.Name) {
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threads = ctx.GlobalInt(utils.MinerThreadsFlag.Name)
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}
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if err := ethereum.StartMining(threads); err != nil {
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utils.Fatalf("Failed to start mining: %v", err)
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}
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}
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}
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// unlockAccounts unlocks any account specifically requested.
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func unlockAccounts(ctx *cli.Context, stack *node.Node) {
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var unlocks []string
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inputs := strings.Split(ctx.GlobalString(utils.UnlockedAccountFlag.Name), ",")
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for _, input := range inputs {
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if trimmed := strings.TrimSpace(input); trimmed != "" {
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unlocks = append(unlocks, trimmed)
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}
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}
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// Short circuit if there is no account to unlock.
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if len(unlocks) == 0 {
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return
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}
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// If insecure account unlocking is not allowed if node's APIs are exposed to external.
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// Print warning log to user and skip unlocking.
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if !stack.Config().InsecureUnlockAllowed && stack.Config().ExtRPCEnabled() {
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utils.Fatalf("Account unlock with HTTP access is forbidden!")
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}
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ks := stack.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
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passwords := utils.MakePasswordList(ctx)
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for i, account := range unlocks {
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unlockAccount(ks, account, i, passwords)
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}
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}
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