438 lines
13 KiB
Go
438 lines
13 KiB
Go
// Copyright 2020 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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package main
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import (
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"bytes"
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"errors"
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"time"
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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/core/rawdb"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/state/pruner"
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"github.com/ethereum/go-ethereum/core/state/snapshot"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/log"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/trie"
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cli "gopkg.in/urfave/cli.v1"
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)
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var (
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// emptyRoot is the known root hash of an empty trie.
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emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
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// emptyCode is the known hash of the empty EVM bytecode.
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emptyCode = crypto.Keccak256(nil)
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)
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var (
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snapshotCommand = cli.Command{
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Name: "snapshot",
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Usage: "A set of commands based on the snapshot",
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Category: "MISCELLANEOUS COMMANDS",
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Description: "",
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Subcommands: []cli.Command{
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{
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Name: "prune-state",
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Usage: "Prune stale ethereum state data based on the snapshot",
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ArgsUsage: "<root>",
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Action: utils.MigrateFlags(pruneState),
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Category: "MISCELLANEOUS COMMANDS",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.AncientFlag,
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utils.RopstenFlag,
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utils.RinkebyFlag,
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utils.GoerliFlag,
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utils.CacheTrieJournalFlag,
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utils.BloomFilterSizeFlag,
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},
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Description: `
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geth snapshot prune-state <state-root>
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will prune historical state data with the help of the state snapshot.
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All trie nodes and contract codes that do not belong to the specified
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version state will be deleted from the database. After pruning, only
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two version states are available: genesis and the specific one.
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The default pruning target is the HEAD-127 state.
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WARNING: It's necessary to delete the trie clean cache after the pruning.
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If you specify another directory for the trie clean cache via "--cache.trie.journal"
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during the use of Geth, please also specify it here for correct deletion. Otherwise
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the trie clean cache with default directory will be deleted.
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`,
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},
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{
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Name: "verify-state",
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Usage: "Recalculate state hash based on the snapshot for verification",
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ArgsUsage: "<root>",
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Action: utils.MigrateFlags(verifyState),
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Category: "MISCELLANEOUS COMMANDS",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.AncientFlag,
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utils.RopstenFlag,
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utils.RinkebyFlag,
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utils.GoerliFlag,
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},
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Description: `
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geth snapshot verify-state <state-root>
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will traverse the whole accounts and storages set based on the specified
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snapshot and recalculate the root hash of state for verification.
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In other words, this command does the snapshot to trie conversion.
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`,
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},
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{
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Name: "traverse-state",
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Usage: "Traverse the state with given root hash for verification",
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ArgsUsage: "<root>",
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Action: utils.MigrateFlags(traverseState),
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Category: "MISCELLANEOUS COMMANDS",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.AncientFlag,
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utils.RopstenFlag,
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utils.RinkebyFlag,
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utils.GoerliFlag,
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},
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Description: `
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geth snapshot traverse-state <state-root>
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will traverse the whole state from the given state root and will abort if any
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referenced trie node or contract code is missing. This command can be used for
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state integrity verification. The default checking target is the HEAD state.
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It's also usable without snapshot enabled.
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`,
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},
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{
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Name: "traverse-rawstate",
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Usage: "Traverse the state with given root hash for verification",
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ArgsUsage: "<root>",
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Action: utils.MigrateFlags(traverseRawState),
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Category: "MISCELLANEOUS COMMANDS",
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Flags: []cli.Flag{
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utils.DataDirFlag,
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utils.AncientFlag,
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utils.RopstenFlag,
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utils.RinkebyFlag,
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utils.GoerliFlag,
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},
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Description: `
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geth snapshot traverse-rawstate <state-root>
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will traverse the whole state from the given root and will abort if any referenced
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trie node or contract code is missing. This command can be used for state integrity
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verification. The default checking target is the HEAD state. It's basically identical
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to traverse-state, but the check granularity is smaller.
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It's also usable without snapshot enabled.
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`,
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},
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},
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}
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)
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func pruneState(ctx *cli.Context) error {
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stack, config := makeConfigNode(ctx)
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defer stack.Close()
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chain, chaindb := utils.MakeChain(ctx, stack, true)
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defer chaindb.Close()
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pruner, err := pruner.NewPruner(chaindb, chain.CurrentBlock().Header(), stack.ResolvePath(""), stack.ResolvePath(config.Eth.TrieCleanCacheJournal), ctx.GlobalUint64(utils.BloomFilterSizeFlag.Name))
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if err != nil {
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log.Error("Failed to open snapshot tree", "error", err)
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return err
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}
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if ctx.NArg() > 1 {
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log.Error("Too many arguments given")
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return errors.New("too many arguments")
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}
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var targetRoot common.Hash
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if ctx.NArg() == 1 {
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targetRoot, err = parseRoot(ctx.Args()[0])
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if err != nil {
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log.Error("Failed to resolve state root", "error", err)
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return err
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}
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}
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if err = pruner.Prune(targetRoot); err != nil {
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log.Error("Failed to prune state", "error", err)
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return err
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}
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return nil
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}
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func verifyState(ctx *cli.Context) error {
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stack, _ := makeConfigNode(ctx)
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defer stack.Close()
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chain, chaindb := utils.MakeChain(ctx, stack, true)
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defer chaindb.Close()
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snaptree, err := snapshot.New(chaindb, trie.NewDatabase(chaindb), 256, chain.CurrentBlock().Root(), false, false, false)
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if err != nil {
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log.Error("Failed to open snapshot tree", "error", err)
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return err
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}
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if ctx.NArg() > 1 {
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log.Error("Too many arguments given")
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return errors.New("too many arguments")
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}
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var root = chain.CurrentBlock().Root()
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if ctx.NArg() == 1 {
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root, err = parseRoot(ctx.Args()[0])
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if err != nil {
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log.Error("Failed to resolve state root", "error", err)
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return err
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}
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}
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if err := snaptree.Verify(root); err != nil {
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log.Error("Failed to verfiy state", "error", err)
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return err
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}
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log.Info("Verified the state")
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return nil
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}
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// traverseState is a helper function used for pruning verification.
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// Basically it just iterates the trie, ensure all nodes and associated
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// contract codes are present.
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func traverseState(ctx *cli.Context) error {
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stack, _ := makeConfigNode(ctx)
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defer stack.Close()
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chain, chaindb := utils.MakeChain(ctx, stack, true)
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defer chaindb.Close()
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if ctx.NArg() > 1 {
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log.Error("Too many arguments given")
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return errors.New("too many arguments")
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}
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// Use the HEAD root as the default
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head := chain.CurrentBlock()
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if head == nil {
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log.Error("Head block is missing")
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return errors.New("head block is missing")
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}
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var (
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root common.Hash
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err error
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)
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if ctx.NArg() == 1 {
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root, err = parseRoot(ctx.Args()[0])
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if err != nil {
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log.Error("Failed to resolve state root", "error", err)
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return err
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}
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log.Info("Start traversing the state", "root", root)
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} else {
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root = head.Root()
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log.Info("Start traversing the state", "root", root, "number", head.NumberU64())
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}
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triedb := trie.NewDatabase(chaindb)
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t, err := trie.NewSecure(root, triedb)
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if err != nil {
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log.Error("Failed to open trie", "root", root, "error", err)
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return err
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}
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var (
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accounts int
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slots int
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codes int
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lastReport time.Time
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start = time.Now()
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)
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accIter := trie.NewIterator(t.NodeIterator(nil))
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for accIter.Next() {
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accounts += 1
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var acc state.Account
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if err := rlp.DecodeBytes(accIter.Value, &acc); err != nil {
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log.Error("Invalid account encountered during traversal", "error", err)
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return err
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}
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if acc.Root != emptyRoot {
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storageTrie, err := trie.NewSecure(acc.Root, triedb)
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if err != nil {
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log.Error("Failed to open storage trie", "root", acc.Root, "error", err)
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return err
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}
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storageIter := trie.NewIterator(storageTrie.NodeIterator(nil))
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for storageIter.Next() {
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slots += 1
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}
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if storageIter.Err != nil {
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log.Error("Failed to traverse storage trie", "root", acc.Root, "error", storageIter.Err)
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return storageIter.Err
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}
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}
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if !bytes.Equal(acc.CodeHash, emptyCode) {
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code := rawdb.ReadCode(chaindb, common.BytesToHash(acc.CodeHash))
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if len(code) == 0 {
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log.Error("Code is missing", "hash", common.BytesToHash(acc.CodeHash))
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return errors.New("missing code")
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}
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codes += 1
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}
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if time.Since(lastReport) > time.Second*8 {
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log.Info("Traversing state", "accounts", accounts, "slots", slots, "codes", codes, "elapsed", common.PrettyDuration(time.Since(start)))
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lastReport = time.Now()
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}
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}
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if accIter.Err != nil {
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log.Error("Failed to traverse state trie", "root", root, "error", accIter.Err)
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return accIter.Err
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}
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log.Info("State is complete", "accounts", accounts, "slots", slots, "codes", codes, "elapsed", common.PrettyDuration(time.Since(start)))
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return nil
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}
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// traverseRawState is a helper function used for pruning verification.
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// Basically it just iterates the trie, ensure all nodes and associated
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// contract codes are present. It's basically identical to traverseState
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// but it will check each trie node.
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func traverseRawState(ctx *cli.Context) error {
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stack, _ := makeConfigNode(ctx)
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defer stack.Close()
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chain, chaindb := utils.MakeChain(ctx, stack, true)
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defer chaindb.Close()
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if ctx.NArg() > 1 {
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log.Error("Too many arguments given")
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return errors.New("too many arguments")
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}
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// Use the HEAD root as the default
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head := chain.CurrentBlock()
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if head == nil {
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log.Error("Head block is missing")
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return errors.New("head block is missing")
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}
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var (
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root common.Hash
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err error
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)
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if ctx.NArg() == 1 {
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root, err = parseRoot(ctx.Args()[0])
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if err != nil {
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log.Error("Failed to resolve state root", "error", err)
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return err
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}
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log.Info("Start traversing the state", "root", root)
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} else {
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root = head.Root()
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log.Info("Start traversing the state", "root", root, "number", head.NumberU64())
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}
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triedb := trie.NewDatabase(chaindb)
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t, err := trie.NewSecure(root, triedb)
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if err != nil {
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log.Error("Failed to open trie", "root", root, "error", err)
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return err
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}
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var (
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nodes int
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accounts int
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slots int
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codes int
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lastReport time.Time
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start = time.Now()
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)
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accIter := t.NodeIterator(nil)
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for accIter.Next(true) {
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nodes += 1
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node := accIter.Hash()
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if node != (common.Hash{}) {
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// Check the present for non-empty hash node(embedded node doesn't
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// have their own hash).
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blob := rawdb.ReadTrieNode(chaindb, node)
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if len(blob) == 0 {
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log.Error("Missing trie node(account)", "hash", node)
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return errors.New("missing account")
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}
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}
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// If it's a leaf node, yes we are touching an account,
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// dig into the storage trie further.
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if accIter.Leaf() {
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accounts += 1
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var acc state.Account
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if err := rlp.DecodeBytes(accIter.LeafBlob(), &acc); err != nil {
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log.Error("Invalid account encountered during traversal", "error", err)
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return errors.New("invalid account")
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}
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if acc.Root != emptyRoot {
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storageTrie, err := trie.NewSecure(acc.Root, triedb)
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if err != nil {
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log.Error("Failed to open storage trie", "root", acc.Root, "error", err)
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return errors.New("missing storage trie")
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}
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storageIter := storageTrie.NodeIterator(nil)
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for storageIter.Next(true) {
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nodes += 1
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node := storageIter.Hash()
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// Check the present for non-empty hash node(embedded node doesn't
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// have their own hash).
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if node != (common.Hash{}) {
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blob := rawdb.ReadTrieNode(chaindb, node)
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if len(blob) == 0 {
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log.Error("Missing trie node(storage)", "hash", node)
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return errors.New("missing storage")
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}
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}
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// Bump the counter if it's leaf node.
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if storageIter.Leaf() {
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slots += 1
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}
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}
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if storageIter.Error() != nil {
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log.Error("Failed to traverse storage trie", "root", acc.Root, "error", storageIter.Error())
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return storageIter.Error()
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}
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}
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if !bytes.Equal(acc.CodeHash, emptyCode) {
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code := rawdb.ReadCode(chaindb, common.BytesToHash(acc.CodeHash))
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if len(code) == 0 {
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log.Error("Code is missing", "account", common.BytesToHash(accIter.LeafKey()))
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return errors.New("missing code")
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}
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codes += 1
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}
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if time.Since(lastReport) > time.Second*8 {
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log.Info("Traversing state", "nodes", nodes, "accounts", accounts, "slots", slots, "codes", codes, "elapsed", common.PrettyDuration(time.Since(start)))
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lastReport = time.Now()
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}
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}
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}
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if accIter.Error() != nil {
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log.Error("Failed to traverse state trie", "root", root, "error", accIter.Error())
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return accIter.Error()
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}
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log.Info("State is complete", "nodes", nodes, "accounts", accounts, "slots", slots, "codes", codes, "elapsed", common.PrettyDuration(time.Since(start)))
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return nil
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}
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func parseRoot(input string) (common.Hash, error) {
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var h common.Hash
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if err := h.UnmarshalText([]byte(input)); err != nil {
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return h, err
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}
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return h, nil
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}
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