different modes (full, state, storage)
This commit is contained in:
parent
97d7b6e590
commit
b82b8f5139
11
cmd/root.go
11
cmd/root.go
@ -24,10 +24,13 @@ import (
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)
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var (
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subCommand string
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logWithCommand logrus.Entry
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rootStr string
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cfgFile string
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subCommand string
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logWithCommand logrus.Entry
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stateRootStr string
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storageRootStr string
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validationType string
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contractAddrStr string
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cfgFile string
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)
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// rootCmd represents the base command when called without any subcommands
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@ -16,7 +16,7 @@
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package cmd
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import (
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"fmt"
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"strings"
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"github.com/ethereum/go-ethereum/common"
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_ "github.com/lib/pq" //postgres driver
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@ -30,7 +30,24 @@ import (
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var validateTrieCmd = &cobra.Command{
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Use: "validateTrie",
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Short: "Validate completeness of state data on IPFS",
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Long: `This command is used to validate the completeness of the state trie corresponding to a specific state root`,
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Long: `This command is used to validate the completeness of state data corresponding specific to a specific root
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It can operate at three levels:
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"full" validates completeness of the entire state corresponding to a provided state root, including both state and storage tries
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./eth-ipfs-state-validator validateTrie --config={path to db config} --type=full --state-root={state root hex string}
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"state" validates completeness of the state trie corresponding to a provided state root, excluding the storage tries
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./eth-ipfs-state-validator validateTrie --config={path to db config} --type=state --state-root={state root hex string}
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"storage" validates completeness of only the storage trie corresponding to a provided storage root and contract address
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./eth-ipfs-state-validator validateTrie --config={path to db config} --type=storage --storage-root={state root hex string} --address={contract address hex string}
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"`,
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Run: func(cmd *cobra.Command, args []string) {
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subCommand = cmd.CalledAs()
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logWithCommand = *logrus.WithField("SubCommand", subCommand)
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@ -44,15 +61,45 @@ func validateTrie() {
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logWithCommand.Fatal(err)
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}
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v := validator.NewValidator(db)
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rootHash := common.HexToHash(rootStr)
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if _, err = v.ValidateTrie(rootHash); err != nil {
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fmt.Printf("State trie is not complete\r\nerr: %v", err)
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logWithCommand.Fatal(err)
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switch strings.ToLower(validationType) {
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case "f", "full":
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if stateRootStr == "" {
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logWithCommand.Fatal("must provide a state root for full state validation")
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}
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stateRoot := common.HexToHash(stateRootStr)
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if err = v.ValidateTrie(stateRoot); err != nil {
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logWithCommand.Fatalf("State for root %s is not complete\r\nerr: %v", stateRoot.String(), err)
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}
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logWithCommand.Infof("State for root %s is complete", stateRoot.String())
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case "state":
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if stateRootStr == "" {
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logWithCommand.Fatal("must provide a state root for state trie validation")
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}
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stateRoot := common.HexToHash(stateRootStr)
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if err = v.ValidateStateTrie(stateRoot); err != nil {
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logWithCommand.Fatalf("State trie for root %s is not complete\r\nerr: %v", stateRoot.String(), err)
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}
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logWithCommand.Infof("State trie for root %s is complete", stateRoot.String())
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case "storage":
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if storageRootStr == "" {
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logWithCommand.Fatal("must provide a storage root for storage trie validation")
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}
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if contractAddrStr == "" {
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logWithCommand.Fatal("must provide a contract address for storage trie validation")
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}
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storageRoot := common.HexToHash(storageRootStr)
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addr := common.HexToAddress(contractAddrStr)
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if err = v.ValidateStorageTrie(addr, storageRoot); err != nil {
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logWithCommand.Fatalf("Storage trie for contract %s and root %s not complete\r\nerr: %v", addr.String(), storageRoot.String(), err)
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}
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logWithCommand.Infof("Storage trie for contract %s and root %s is complete", addr.String(), storageRoot.String())
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}
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fmt.Printf("State trie for root %s is complete", rootStr)
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}
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func init() {
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rootCmd.AddCommand(validateTrieCmd)
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validateTrieCmd.Flags().StringVarP(&rootStr, "root", "r", "", "Root of the state trie we wish to validate")
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validateTrieCmd.Flags().StringVarP(&stateRootStr, "state-root", "s", "", "Root of the state trie we wish to validate; for full or state validation")
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validateTrieCmd.Flags().StringVarP(&validationType, "type", "t", "full", "Type of validations: full, state, storage")
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validateTrieCmd.Flags().StringVarP(&storageRootStr, "storage-root", "o", "", "Root of the storage trie we wish to validate; for storage validation")
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validateTrieCmd.Flags().StringVarP(&contractAddrStr, "address", "a", "", "Contract address for the storage trie we wish to validate; for storage validation")
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}
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@ -20,6 +20,7 @@ import (
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/state"
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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/ethdb"
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"github.com/ethereum/go-ethereum/trie"
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"github.com/jmoiron/sqlx"
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@ -35,6 +36,8 @@ type Validator struct {
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}
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// NewValidator returns a new trie validator
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// Validating the completeness of a modified merkle patricia tries requires traversing the entire trie and verifying that
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// every node is present, this is an expensive operation
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func NewValidator(db *sqlx.DB) *Validator {
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kvs := ipfsethdb.NewKeyValueStore(db)
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database := ipfsethdb.NewDatabase(db)
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@ -45,24 +48,54 @@ func NewValidator(db *sqlx.DB) *Validator {
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}
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}
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// ValidateTrie returns whether or not the trie for the provided root hash is valid and complete
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// Validating the completeness of a modified merkle patricia trie requires traversing the entire trie and verifying that
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// every node is present, this is an expensive operation
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func (v *Validator) ValidateTrie(root common.Hash) (bool, error) {
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// ValidateTrie returns an error if the state and storage tries for the provided state root cannot be confirmed as complete
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// This does consider child storage tries
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func (v *Validator) ValidateTrie(stateRoot common.Hash) error {
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// Generate the state.NodeIterator for this root
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snapshotTree := snapshot.New(v.kvs, v.trieDB, 0, root, false)
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snapshotTree := snapshot.New(v.kvs, v.trieDB, 0, stateRoot, false)
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stateDB, err := state.New(common.Hash{}, v.stateDatabase, snapshotTree)
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if err != nil {
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return false, err
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return err
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}
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it := state.NewNodeIterator(stateDB)
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for it.Next() {
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// iterate through entire trie
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// it.Next() will return false when we have either completed iteration of the entire trie or have ran into an error
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// iterate through entire state trie and descendent storage tries
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// it.Next() will return false when we have either completed iteration of the entire trie or have ran into an error (e.g. a missing node)
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// if we are able to iterate through the entire trie without error then the trie is complete
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}
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if it.Error != nil {
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return false, it.Error
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}
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return true, nil
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return it.Error
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}
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// ValidateStateTrie returns an error if the state trie for the provided state root cannot be confirmed as complete
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// This does not consider child storage tries
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func (v *Validator) ValidateStateTrie(stateRoot common.Hash) error {
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// Generate the trie.NodeIterator for this root
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t, err := v.stateDatabase.OpenTrie(stateRoot)
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if err != nil {
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return err
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}
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it := t.NodeIterator(nil)
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for it.Next(true) {
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// iterate through entire state trie
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// it.Next() will return false when we have either completed iteration of the entire trie or have ran into an error (e.g. a missing node)
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// if we are able to iterate through the entire trie without error then the trie is complete
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}
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return it.Error()
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}
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// ValidateStorageTrie returns an error if the storage trie for the provided storage root and contract address cannot be confirmed as complete
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func (v *Validator) ValidateStorageTrie(address common.Address, storageRoot common.Hash) error {
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// Generate the state.NodeIterator for this root
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addrHash := crypto.Keccak256Hash(address.Bytes())
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t, err := v.stateDatabase.OpenStorageTrie(addrHash, storageRoot)
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if err != nil {
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return err
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}
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it := t.NodeIterator(nil)
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for it.Next(true) {
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// iterate through entire storage trie
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// it.Next() will return false when we have either completed iteration of the entire trie or have ran into an error (e.g. a missing node)
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// if we are able to iterate through the entire trie without error then the trie is complete
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}
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return it.Error()
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}
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