660 lines
18 KiB
Go
660 lines
18 KiB
Go
// Copyright 2022 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package pathdb
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import (
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"bytes"
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"errors"
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"fmt"
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"math/rand"
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"testing"
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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/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/internal/testrand"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/trie/trienode"
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"github.com/ethereum/go-ethereum/trie/triestate"
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"github.com/holiman/uint256"
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)
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func updateTrie(addrHash common.Hash, root common.Hash, dirties, cleans map[common.Hash][]byte) (common.Hash, *trienode.NodeSet) {
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h, err := newTestHasher(addrHash, root, cleans)
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if err != nil {
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panic(fmt.Errorf("failed to create hasher, err: %w", err))
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}
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for key, val := range dirties {
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if len(val) == 0 {
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h.Delete(key.Bytes())
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} else {
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h.Update(key.Bytes(), val)
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}
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}
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root, nodes, err := h.Commit(false)
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if err != nil {
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panic(fmt.Errorf("failed to commit hasher, err: %w", err))
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}
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return root, nodes
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}
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func generateAccount(storageRoot common.Hash) types.StateAccount {
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return types.StateAccount{
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Nonce: uint64(rand.Intn(100)),
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Balance: uint256.NewInt(rand.Uint64()),
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CodeHash: testrand.Bytes(32),
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Root: storageRoot,
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}
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}
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const (
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createAccountOp int = iota
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modifyAccountOp
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deleteAccountOp
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opLen
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)
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type genctx struct {
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accounts map[common.Hash][]byte
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storages map[common.Hash]map[common.Hash][]byte
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accountOrigin map[common.Address][]byte
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storageOrigin map[common.Address]map[common.Hash][]byte
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nodes *trienode.MergedNodeSet
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}
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func newCtx() *genctx {
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return &genctx{
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accounts: make(map[common.Hash][]byte),
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storages: make(map[common.Hash]map[common.Hash][]byte),
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accountOrigin: make(map[common.Address][]byte),
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storageOrigin: make(map[common.Address]map[common.Hash][]byte),
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nodes: trienode.NewMergedNodeSet(),
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}
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}
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type tester struct {
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db *Database
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roots []common.Hash
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preimages map[common.Hash]common.Address
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accounts map[common.Hash][]byte
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storages map[common.Hash]map[common.Hash][]byte
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// state snapshots
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snapAccounts map[common.Hash]map[common.Hash][]byte
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snapStorages map[common.Hash]map[common.Hash]map[common.Hash][]byte
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}
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func newTester(t *testing.T, historyLimit uint64) *tester {
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var (
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disk, _ = rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
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db = New(disk, &Config{
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StateHistory: historyLimit,
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CleanCacheSize: 16 * 1024,
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DirtyCacheSize: 16 * 1024,
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}, false)
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obj = &tester{
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db: db,
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preimages: make(map[common.Hash]common.Address),
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accounts: make(map[common.Hash][]byte),
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storages: make(map[common.Hash]map[common.Hash][]byte),
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snapAccounts: make(map[common.Hash]map[common.Hash][]byte),
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snapStorages: make(map[common.Hash]map[common.Hash]map[common.Hash][]byte),
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}
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)
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for i := 0; i < 8; i++ {
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var parent = types.EmptyRootHash
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if len(obj.roots) != 0 {
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parent = obj.roots[len(obj.roots)-1]
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}
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root, nodes, states := obj.generate(parent)
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if err := db.Update(root, parent, uint64(i), nodes, states); err != nil {
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panic(fmt.Errorf("failed to update state changes, err: %w", err))
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}
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obj.roots = append(obj.roots, root)
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}
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return obj
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}
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func (t *tester) release() {
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t.db.Close()
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t.db.diskdb.Close()
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}
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func (t *tester) randAccount() (common.Address, []byte) {
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for addrHash, account := range t.accounts {
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return t.preimages[addrHash], account
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}
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return common.Address{}, nil
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}
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func (t *tester) generateStorage(ctx *genctx, addr common.Address) common.Hash {
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var (
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addrHash = crypto.Keccak256Hash(addr.Bytes())
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storage = make(map[common.Hash][]byte)
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origin = make(map[common.Hash][]byte)
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)
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for i := 0; i < 10; i++ {
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v, _ := rlp.EncodeToBytes(common.TrimLeftZeroes(testrand.Bytes(32)))
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hash := testrand.Hash()
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storage[hash] = v
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origin[hash] = nil
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}
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root, set := updateTrie(addrHash, types.EmptyRootHash, storage, nil)
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ctx.storages[addrHash] = storage
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ctx.storageOrigin[addr] = origin
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ctx.nodes.Merge(set)
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return root
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}
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func (t *tester) mutateStorage(ctx *genctx, addr common.Address, root common.Hash) common.Hash {
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var (
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addrHash = crypto.Keccak256Hash(addr.Bytes())
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storage = make(map[common.Hash][]byte)
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origin = make(map[common.Hash][]byte)
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)
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for hash, val := range t.storages[addrHash] {
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origin[hash] = val
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storage[hash] = nil
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if len(origin) == 3 {
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break
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}
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}
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for i := 0; i < 3; i++ {
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v, _ := rlp.EncodeToBytes(common.TrimLeftZeroes(testrand.Bytes(32)))
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hash := testrand.Hash()
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storage[hash] = v
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origin[hash] = nil
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}
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root, set := updateTrie(crypto.Keccak256Hash(addr.Bytes()), root, storage, t.storages[addrHash])
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ctx.storages[addrHash] = storage
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ctx.storageOrigin[addr] = origin
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ctx.nodes.Merge(set)
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return root
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}
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func (t *tester) clearStorage(ctx *genctx, addr common.Address, root common.Hash) common.Hash {
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var (
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addrHash = crypto.Keccak256Hash(addr.Bytes())
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storage = make(map[common.Hash][]byte)
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origin = make(map[common.Hash][]byte)
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)
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for hash, val := range t.storages[addrHash] {
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origin[hash] = val
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storage[hash] = nil
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}
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root, set := updateTrie(addrHash, root, storage, t.storages[addrHash])
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if root != types.EmptyRootHash {
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panic("failed to clear storage trie")
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}
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ctx.storages[addrHash] = storage
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ctx.storageOrigin[addr] = origin
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ctx.nodes.Merge(set)
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return root
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}
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func (t *tester) generate(parent common.Hash) (common.Hash, *trienode.MergedNodeSet, *triestate.Set) {
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var (
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ctx = newCtx()
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dirties = make(map[common.Hash]struct{})
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)
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for i := 0; i < 20; i++ {
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switch rand.Intn(opLen) {
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case createAccountOp:
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// account creation
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addr := testrand.Address()
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addrHash := crypto.Keccak256Hash(addr.Bytes())
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if _, ok := t.accounts[addrHash]; ok {
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continue
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}
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if _, ok := dirties[addrHash]; ok {
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continue
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}
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dirties[addrHash] = struct{}{}
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root := t.generateStorage(ctx, addr)
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ctx.accounts[addrHash] = types.SlimAccountRLP(generateAccount(root))
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ctx.accountOrigin[addr] = nil
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t.preimages[addrHash] = addr
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case modifyAccountOp:
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// account mutation
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addr, account := t.randAccount()
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if addr == (common.Address{}) {
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continue
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}
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addrHash := crypto.Keccak256Hash(addr.Bytes())
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if _, ok := dirties[addrHash]; ok {
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continue
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}
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dirties[addrHash] = struct{}{}
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acct, _ := types.FullAccount(account)
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stRoot := t.mutateStorage(ctx, addr, acct.Root)
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newAccount := types.SlimAccountRLP(generateAccount(stRoot))
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ctx.accounts[addrHash] = newAccount
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ctx.accountOrigin[addr] = account
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case deleteAccountOp:
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// account deletion
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addr, account := t.randAccount()
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if addr == (common.Address{}) {
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continue
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}
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addrHash := crypto.Keccak256Hash(addr.Bytes())
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if _, ok := dirties[addrHash]; ok {
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continue
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}
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dirties[addrHash] = struct{}{}
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acct, _ := types.FullAccount(account)
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if acct.Root != types.EmptyRootHash {
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t.clearStorage(ctx, addr, acct.Root)
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}
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ctx.accounts[addrHash] = nil
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ctx.accountOrigin[addr] = account
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}
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}
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root, set := updateTrie(common.Hash{}, parent, ctx.accounts, t.accounts)
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ctx.nodes.Merge(set)
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// Save state snapshot before commit
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t.snapAccounts[parent] = copyAccounts(t.accounts)
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t.snapStorages[parent] = copyStorages(t.storages)
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// Commit all changes to live state set
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for addrHash, account := range ctx.accounts {
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if len(account) == 0 {
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delete(t.accounts, addrHash)
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} else {
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t.accounts[addrHash] = account
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}
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}
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for addrHash, slots := range ctx.storages {
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if _, ok := t.storages[addrHash]; !ok {
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t.storages[addrHash] = make(map[common.Hash][]byte)
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}
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for sHash, slot := range slots {
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if len(slot) == 0 {
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delete(t.storages[addrHash], sHash)
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} else {
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t.storages[addrHash][sHash] = slot
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}
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}
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}
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return root, ctx.nodes, triestate.New(ctx.accountOrigin, ctx.storageOrigin)
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}
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// lastHash returns the latest root hash, or empty if nothing is cached.
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func (t *tester) lastHash() common.Hash {
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if len(t.roots) == 0 {
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return common.Hash{}
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}
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return t.roots[len(t.roots)-1]
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}
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func (t *tester) verifyState(root common.Hash) error {
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reader, err := t.db.Reader(root)
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if err != nil {
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return err
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}
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_, err = reader.Node(common.Hash{}, nil, root)
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if err != nil {
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return errors.New("root node is not available")
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}
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for addrHash, account := range t.snapAccounts[root] {
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path := crypto.Keccak256(addrHash.Bytes())
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blob, err := reader.Node(common.Hash{}, path, crypto.Keccak256Hash(account))
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if err != nil || !bytes.Equal(blob, account) {
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return fmt.Errorf("account is mismatched: %w", err)
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}
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}
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for addrHash, slots := range t.snapStorages[root] {
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for hash, slot := range slots {
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path := crypto.Keccak256(hash.Bytes())
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blob, err := reader.Node(addrHash, path, crypto.Keccak256Hash(slot))
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if err != nil || !bytes.Equal(blob, slot) {
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return fmt.Errorf("slot is mismatched: %w", err)
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}
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}
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}
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return nil
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}
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func (t *tester) verifyHistory() error {
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bottom := t.bottomIndex()
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for i, root := range t.roots {
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// The state history related to the state above disk layer should not exist.
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if i > bottom {
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_, err := readHistory(t.db.freezer, uint64(i+1))
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if err == nil {
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return errors.New("unexpected state history")
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}
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continue
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}
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// The state history related to the state below or equal to the disk layer
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// should exist.
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obj, err := readHistory(t.db.freezer, uint64(i+1))
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if err != nil {
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return err
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}
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parent := types.EmptyRootHash
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if i != 0 {
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parent = t.roots[i-1]
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}
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if obj.meta.parent != parent {
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return fmt.Errorf("unexpected parent, want: %x, got: %x", parent, obj.meta.parent)
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}
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if obj.meta.root != root {
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return fmt.Errorf("unexpected root, want: %x, got: %x", root, obj.meta.root)
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}
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}
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return nil
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}
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// bottomIndex returns the index of current disk layer.
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func (t *tester) bottomIndex() int {
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bottom := t.db.tree.bottom()
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for i := 0; i < len(t.roots); i++ {
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if t.roots[i] == bottom.rootHash() {
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return i
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}
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}
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return -1
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}
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func TestDatabaseRollback(t *testing.T) {
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// Redefine the diff layer depth allowance for faster testing.
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maxDiffLayers = 4
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defer func() {
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maxDiffLayers = 128
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}()
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// Verify state histories
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tester := newTester(t, 0)
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defer tester.release()
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if err := tester.verifyHistory(); err != nil {
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t.Fatalf("Invalid state history, err: %v", err)
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}
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// Revert database from top to bottom
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for i := tester.bottomIndex(); i >= 0; i-- {
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root := tester.roots[i]
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parent := types.EmptyRootHash
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if i > 0 {
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parent = tester.roots[i-1]
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}
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loader := newHashLoader(tester.snapAccounts[root], tester.snapStorages[root])
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if err := tester.db.Recover(parent, loader); err != nil {
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t.Fatalf("Failed to revert db, err: %v", err)
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}
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if i > 0 {
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if err := tester.verifyState(parent); err != nil {
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t.Fatalf("Failed to verify state, err: %v", err)
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}
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}
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}
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if tester.db.tree.len() != 1 {
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t.Fatal("Only disk layer is expected")
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}
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}
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func TestDatabaseRecoverable(t *testing.T) {
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// Redefine the diff layer depth allowance for faster testing.
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maxDiffLayers = 4
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defer func() {
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maxDiffLayers = 128
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}()
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var (
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tester = newTester(t, 0)
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index = tester.bottomIndex()
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)
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defer tester.release()
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var cases = []struct {
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root common.Hash
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expect bool
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}{
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// Unknown state should be unrecoverable
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{common.Hash{0x1}, false},
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// Initial state should be recoverable
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{types.EmptyRootHash, true},
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// Initial state should be recoverable
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{common.Hash{}, true},
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// Layers below current disk layer are recoverable
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{tester.roots[index-1], true},
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// Disklayer itself is not recoverable, since it's
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// available for accessing.
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{tester.roots[index], false},
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// Layers above current disk layer are not recoverable
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// since they are available for accessing.
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{tester.roots[index+1], false},
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}
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for i, c := range cases {
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result := tester.db.Recoverable(c.root)
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if result != c.expect {
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t.Fatalf("case: %d, unexpected result, want %t, got %t", i, c.expect, result)
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}
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}
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}
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func TestDisable(t *testing.T) {
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// Redefine the diff layer depth allowance for faster testing.
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maxDiffLayers = 4
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defer func() {
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maxDiffLayers = 128
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}()
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tester := newTester(t, 0)
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defer tester.release()
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_, stored := rawdb.ReadAccountTrieNode(tester.db.diskdb, nil)
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if err := tester.db.Disable(); err != nil {
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t.Fatalf("Failed to deactivate database: %v", err)
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}
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if err := tester.db.Enable(types.EmptyRootHash); err == nil {
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t.Fatal("Invalid activation should be rejected")
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}
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if err := tester.db.Enable(stored); err != nil {
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t.Fatalf("Failed to activate database: %v", err)
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}
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// Ensure journal is deleted from disk
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if blob := rawdb.ReadTrieJournal(tester.db.diskdb); len(blob) != 0 {
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t.Fatal("Failed to clean journal")
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}
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// Ensure all trie histories are removed
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n, err := tester.db.freezer.Ancients()
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if err != nil {
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t.Fatal("Failed to clean state history")
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}
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if n != 0 {
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t.Fatal("Failed to clean state history")
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}
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// Verify layer tree structure, single disk layer is expected
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if tester.db.tree.len() != 1 {
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t.Fatalf("Extra layer kept %d", tester.db.tree.len())
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}
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if tester.db.tree.bottom().rootHash() != stored {
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t.Fatalf("Root hash is not matched exp %x got %x", stored, tester.db.tree.bottom().rootHash())
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}
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}
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func TestCommit(t *testing.T) {
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// Redefine the diff layer depth allowance for faster testing.
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maxDiffLayers = 4
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defer func() {
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maxDiffLayers = 128
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}()
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|
|
tester := newTester(t, 0)
|
|
defer tester.release()
|
|
|
|
if err := tester.db.Commit(tester.lastHash(), false); err != nil {
|
|
t.Fatalf("Failed to cap database, err: %v", err)
|
|
}
|
|
// Verify layer tree structure, single disk layer is expected
|
|
if tester.db.tree.len() != 1 {
|
|
t.Fatal("Layer tree structure is invalid")
|
|
}
|
|
if tester.db.tree.bottom().rootHash() != tester.lastHash() {
|
|
t.Fatal("Layer tree structure is invalid")
|
|
}
|
|
// Verify states
|
|
if err := tester.verifyState(tester.lastHash()); err != nil {
|
|
t.Fatalf("State is invalid, err: %v", err)
|
|
}
|
|
// Verify state histories
|
|
if err := tester.verifyHistory(); err != nil {
|
|
t.Fatalf("State history is invalid, err: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestJournal(t *testing.T) {
|
|
// Redefine the diff layer depth allowance for faster testing.
|
|
maxDiffLayers = 4
|
|
defer func() {
|
|
maxDiffLayers = 128
|
|
}()
|
|
|
|
tester := newTester(t, 0)
|
|
defer tester.release()
|
|
|
|
if err := tester.db.Journal(tester.lastHash()); err != nil {
|
|
t.Errorf("Failed to journal, err: %v", err)
|
|
}
|
|
tester.db.Close()
|
|
tester.db = New(tester.db.diskdb, nil, false)
|
|
|
|
// Verify states including disk layer and all diff on top.
|
|
for i := 0; i < len(tester.roots); i++ {
|
|
if i >= tester.bottomIndex() {
|
|
if err := tester.verifyState(tester.roots[i]); err != nil {
|
|
t.Fatalf("Invalid state, err: %v", err)
|
|
}
|
|
continue
|
|
}
|
|
if err := tester.verifyState(tester.roots[i]); err == nil {
|
|
t.Fatal("Unexpected state")
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestCorruptedJournal(t *testing.T) {
|
|
// Redefine the diff layer depth allowance for faster testing.
|
|
maxDiffLayers = 4
|
|
defer func() {
|
|
maxDiffLayers = 128
|
|
}()
|
|
|
|
tester := newTester(t, 0)
|
|
defer tester.release()
|
|
|
|
if err := tester.db.Journal(tester.lastHash()); err != nil {
|
|
t.Errorf("Failed to journal, err: %v", err)
|
|
}
|
|
tester.db.Close()
|
|
_, root := rawdb.ReadAccountTrieNode(tester.db.diskdb, nil)
|
|
|
|
// Mutate the journal in disk, it should be regarded as invalid
|
|
blob := rawdb.ReadTrieJournal(tester.db.diskdb)
|
|
blob[0] = 0xa
|
|
rawdb.WriteTrieJournal(tester.db.diskdb, blob)
|
|
|
|
// Verify states, all not-yet-written states should be discarded
|
|
tester.db = New(tester.db.diskdb, nil, false)
|
|
for i := 0; i < len(tester.roots); i++ {
|
|
if tester.roots[i] == root {
|
|
if err := tester.verifyState(root); err != nil {
|
|
t.Fatalf("Disk state is corrupted, err: %v", err)
|
|
}
|
|
continue
|
|
}
|
|
if err := tester.verifyState(tester.roots[i]); err == nil {
|
|
t.Fatal("Unexpected state")
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestTailTruncateHistory function is designed to test a specific edge case where,
|
|
// when history objects are removed from the end, it should trigger a state flush
|
|
// if the ID of the new tail object is even higher than the persisted state ID.
|
|
//
|
|
// For example, let's say the ID of the persistent state is 10, and the current
|
|
// history objects range from ID(5) to ID(15). As we accumulate six more objects,
|
|
// the history will expand to cover ID(11) to ID(21). ID(11) then becomes the
|
|
// oldest history object, and its ID is even higher than the stored state.
|
|
//
|
|
// In this scenario, it is mandatory to update the persistent state before
|
|
// truncating the tail histories. This ensures that the ID of the persistent state
|
|
// always falls within the range of [oldest-history-id, latest-history-id].
|
|
func TestTailTruncateHistory(t *testing.T) {
|
|
// Redefine the diff layer depth allowance for faster testing.
|
|
maxDiffLayers = 4
|
|
defer func() {
|
|
maxDiffLayers = 128
|
|
}()
|
|
|
|
tester := newTester(t, 10)
|
|
defer tester.release()
|
|
|
|
tester.db.Close()
|
|
tester.db = New(tester.db.diskdb, &Config{StateHistory: 10}, false)
|
|
|
|
head, err := tester.db.freezer.Ancients()
|
|
if err != nil {
|
|
t.Fatalf("Failed to obtain freezer head")
|
|
}
|
|
stored := rawdb.ReadPersistentStateID(tester.db.diskdb)
|
|
if head != stored {
|
|
t.Fatalf("Failed to truncate excess history object above, stored: %d, head: %d", stored, head)
|
|
}
|
|
}
|
|
|
|
// copyAccounts returns a deep-copied account set of the provided one.
|
|
func copyAccounts(set map[common.Hash][]byte) map[common.Hash][]byte {
|
|
copied := make(map[common.Hash][]byte, len(set))
|
|
for key, val := range set {
|
|
copied[key] = common.CopyBytes(val)
|
|
}
|
|
return copied
|
|
}
|
|
|
|
// copyStorages returns a deep-copied storage set of the provided one.
|
|
func copyStorages(set map[common.Hash]map[common.Hash][]byte) map[common.Hash]map[common.Hash][]byte {
|
|
copied := make(map[common.Hash]map[common.Hash][]byte, len(set))
|
|
for addrHash, subset := range set {
|
|
copied[addrHash] = make(map[common.Hash][]byte, len(subset))
|
|
for key, val := range subset {
|
|
copied[addrHash][key] = common.CopyBytes(val)
|
|
}
|
|
}
|
|
return copied
|
|
}
|