834 lines
35 KiB
Go
834 lines
35 KiB
Go
// Copyright 2020 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 snapshot
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import (
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"fmt"
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"math/big"
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"os"
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"testing"
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"time"
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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/ethdb"
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"github.com/ethereum/go-ethereum/ethdb/memorydb"
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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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"golang.org/x/crypto/sha3"
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)
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// Tests that snapshot generation from an empty database.
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func TestGeneration(t *testing.T) {
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// We can't use statedb to make a test trie (circular dependency), so make
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// a fake one manually. We're going with a small account trie of 3 accounts,
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// two of which also has the same 3-slot storage trie attached.
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var (
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diskdb = memorydb.New()
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triedb = trie.NewDatabase(diskdb)
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)
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stTrie, _ := trie.NewSecure(common.Hash{}, triedb)
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stTrie.Update([]byte("key-1"), []byte("val-1")) // 0x1314700b81afc49f94db3623ef1df38f3ed18b73a1b7ea2f6c095118cf6118a0
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stTrie.Update([]byte("key-2"), []byte("val-2")) // 0x18a0f4d79cff4459642dd7604f303886ad9d77c30cf3d7d7cedb3a693ab6d371
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stTrie.Update([]byte("key-3"), []byte("val-3")) // 0x51c71a47af0695957647fb68766d0becee77e953df17c29b3c2f25436f055c78
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stTrie.Commit(nil) // Root: 0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67
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accTrie, _ := trie.NewSecure(common.Hash{}, triedb)
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acc := &Account{Balance: big.NewInt(1), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
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val, _ := rlp.EncodeToBytes(acc)
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accTrie.Update([]byte("acc-1"), val) // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
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acc = &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
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val, _ = rlp.EncodeToBytes(acc)
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accTrie.Update([]byte("acc-2"), val) // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
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acc = &Account{Balance: big.NewInt(3), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
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val, _ = rlp.EncodeToBytes(acc)
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accTrie.Update([]byte("acc-3"), val) // 0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2
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root, _, _ := accTrie.Commit(nil) // Root: 0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd
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triedb.Commit(root, false, nil)
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if have, want := root, common.HexToHash("0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd"); have != want {
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t.Fatalf("have %#x want %#x", have, want)
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}
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snap := generateSnapshot(diskdb, triedb, 16, root)
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select {
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case <-snap.genPending:
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// Snapshot generation succeeded
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case <-time.After(3 * time.Second):
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t.Errorf("Snapshot generation failed")
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}
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checkSnapRoot(t, snap, root)
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// Signal abortion to the generator and wait for it to tear down
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stop := make(chan *generatorStats)
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snap.genAbort <- stop
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<-stop
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}
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func hashData(input []byte) common.Hash {
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var hasher = sha3.NewLegacyKeccak256()
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var hash common.Hash
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hasher.Reset()
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hasher.Write(input)
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hasher.Sum(hash[:0])
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return hash
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}
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// Tests that snapshot generation with existent flat state.
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func TestGenerateExistentState(t *testing.T) {
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// We can't use statedb to make a test trie (circular dependency), so make
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// a fake one manually. We're going with a small account trie of 3 accounts,
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// two of which also has the same 3-slot storage trie attached.
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var (
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diskdb = memorydb.New()
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triedb = trie.NewDatabase(diskdb)
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)
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stTrie, _ := trie.NewSecure(common.Hash{}, triedb)
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stTrie.Update([]byte("key-1"), []byte("val-1")) // 0x1314700b81afc49f94db3623ef1df38f3ed18b73a1b7ea2f6c095118cf6118a0
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stTrie.Update([]byte("key-2"), []byte("val-2")) // 0x18a0f4d79cff4459642dd7604f303886ad9d77c30cf3d7d7cedb3a693ab6d371
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stTrie.Update([]byte("key-3"), []byte("val-3")) // 0x51c71a47af0695957647fb68766d0becee77e953df17c29b3c2f25436f055c78
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stTrie.Commit(nil) // Root: 0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67
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accTrie, _ := trie.NewSecure(common.Hash{}, triedb)
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acc := &Account{Balance: big.NewInt(1), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
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val, _ := rlp.EncodeToBytes(acc)
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accTrie.Update([]byte("acc-1"), val) // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
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rawdb.WriteAccountSnapshot(diskdb, hashData([]byte("acc-1")), val)
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rawdb.WriteStorageSnapshot(diskdb, hashData([]byte("acc-1")), hashData([]byte("key-1")), []byte("val-1"))
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rawdb.WriteStorageSnapshot(diskdb, hashData([]byte("acc-1")), hashData([]byte("key-2")), []byte("val-2"))
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rawdb.WriteStorageSnapshot(diskdb, hashData([]byte("acc-1")), hashData([]byte("key-3")), []byte("val-3"))
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acc = &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
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val, _ = rlp.EncodeToBytes(acc)
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accTrie.Update([]byte("acc-2"), val) // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
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diskdb.Put(hashData([]byte("acc-2")).Bytes(), val)
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rawdb.WriteAccountSnapshot(diskdb, hashData([]byte("acc-2")), val)
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acc = &Account{Balance: big.NewInt(3), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
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val, _ = rlp.EncodeToBytes(acc)
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accTrie.Update([]byte("acc-3"), val) // 0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2
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rawdb.WriteAccountSnapshot(diskdb, hashData([]byte("acc-3")), val)
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rawdb.WriteStorageSnapshot(diskdb, hashData([]byte("acc-3")), hashData([]byte("key-1")), []byte("val-1"))
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rawdb.WriteStorageSnapshot(diskdb, hashData([]byte("acc-3")), hashData([]byte("key-2")), []byte("val-2"))
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rawdb.WriteStorageSnapshot(diskdb, hashData([]byte("acc-3")), hashData([]byte("key-3")), []byte("val-3"))
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root, _, _ := accTrie.Commit(nil) // Root: 0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd
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triedb.Commit(root, false, nil)
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snap := generateSnapshot(diskdb, triedb, 16, root)
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select {
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case <-snap.genPending:
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// Snapshot generation succeeded
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case <-time.After(3 * time.Second):
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t.Errorf("Snapshot generation failed")
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}
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checkSnapRoot(t, snap, root)
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// Signal abortion to the generator and wait for it to tear down
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stop := make(chan *generatorStats)
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snap.genAbort <- stop
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<-stop
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}
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func checkSnapRoot(t *testing.T, snap *diskLayer, trieRoot common.Hash) {
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t.Helper()
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accIt := snap.AccountIterator(common.Hash{})
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defer accIt.Release()
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snapRoot, err := generateTrieRoot(nil, accIt, common.Hash{}, stackTrieGenerate,
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func(db ethdb.KeyValueWriter, accountHash, codeHash common.Hash, stat *generateStats) (common.Hash, error) {
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storageIt, _ := snap.StorageIterator(accountHash, common.Hash{})
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defer storageIt.Release()
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hash, err := generateTrieRoot(nil, storageIt, accountHash, stackTrieGenerate, nil, stat, false)
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if err != nil {
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return common.Hash{}, err
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}
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return hash, nil
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}, newGenerateStats(), true)
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if err != nil {
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t.Fatal(err)
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}
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if snapRoot != trieRoot {
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t.Fatalf("snaproot: %#x != trieroot #%x", snapRoot, trieRoot)
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}
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}
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type testHelper struct {
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diskdb *memorydb.Database
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triedb *trie.Database
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accTrie *trie.SecureTrie
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}
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func newHelper() *testHelper {
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diskdb := memorydb.New()
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triedb := trie.NewDatabase(diskdb)
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accTrie, _ := trie.NewSecure(common.Hash{}, triedb)
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return &testHelper{
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diskdb: diskdb,
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triedb: triedb,
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accTrie: accTrie,
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}
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}
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func (t *testHelper) addTrieAccount(acckey string, acc *Account) {
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val, _ := rlp.EncodeToBytes(acc)
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t.accTrie.Update([]byte(acckey), val)
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}
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func (t *testHelper) addSnapAccount(acckey string, acc *Account) {
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val, _ := rlp.EncodeToBytes(acc)
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key := hashData([]byte(acckey))
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rawdb.WriteAccountSnapshot(t.diskdb, key, val)
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}
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func (t *testHelper) addAccount(acckey string, acc *Account) {
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t.addTrieAccount(acckey, acc)
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t.addSnapAccount(acckey, acc)
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}
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func (t *testHelper) addSnapStorage(accKey string, keys []string, vals []string) {
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accHash := hashData([]byte(accKey))
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for i, key := range keys {
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rawdb.WriteStorageSnapshot(t.diskdb, accHash, hashData([]byte(key)), []byte(vals[i]))
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}
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}
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func (t *testHelper) makeStorageTrie(keys []string, vals []string) []byte {
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stTrie, _ := trie.NewSecure(common.Hash{}, t.triedb)
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for i, k := range keys {
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stTrie.Update([]byte(k), []byte(vals[i]))
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}
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root, _, _ := stTrie.Commit(nil)
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return root.Bytes()
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}
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func (t *testHelper) Generate() (common.Hash, *diskLayer) {
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root, _, _ := t.accTrie.Commit(nil)
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t.triedb.Commit(root, false, nil)
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snap := generateSnapshot(t.diskdb, t.triedb, 16, root)
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return root, snap
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}
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// Tests that snapshot generation with existent flat state, where the flat state
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// contains some errors:
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// - the contract with empty storage root but has storage entries in the disk
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// - the contract with non empty storage root but empty storage slots
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// - the contract(non-empty storage) misses some storage slots
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// - miss in the beginning
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// - miss in the middle
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// - miss in the end
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// - the contract(non-empty storage) has wrong storage slots
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// - wrong slots in the beginning
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// - wrong slots in the middle
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// - wrong slots in the end
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// - the contract(non-empty storage) has extra storage slots
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// - extra slots in the beginning
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// - extra slots in the middle
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// - extra slots in the end
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func TestGenerateExistentStateWithWrongStorage(t *testing.T) {
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helper := newHelper()
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stRoot := helper.makeStorageTrie([]string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
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// Account one, empty root but non-empty database
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helper.addAccount("acc-1", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-1", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
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// Account two, non empty root but empty database
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helper.addAccount("acc-2", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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// Miss slots
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{
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// Account three, non empty root but misses slots in the beginning
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helper.addAccount("acc-3", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-3", []string{"key-2", "key-3"}, []string{"val-2", "val-3"})
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// Account four, non empty root but misses slots in the middle
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helper.addAccount("acc-4", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-4", []string{"key-1", "key-3"}, []string{"val-1", "val-3"})
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// Account five, non empty root but misses slots in the end
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helper.addAccount("acc-5", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-5", []string{"key-1", "key-2"}, []string{"val-1", "val-2"})
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}
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// Wrong storage slots
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{
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// Account six, non empty root but wrong slots in the beginning
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helper.addAccount("acc-6", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-6", []string{"key-1", "key-2", "key-3"}, []string{"badval-1", "val-2", "val-3"})
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// Account seven, non empty root but wrong slots in the middle
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helper.addAccount("acc-7", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-7", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "badval-2", "val-3"})
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// Account eight, non empty root but wrong slots in the end
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helper.addAccount("acc-8", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-8", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "badval-3"})
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// Account 9, non empty root but rotated slots
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helper.addAccount("acc-9", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-9", []string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-3", "val-2"})
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}
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// Extra storage slots
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{
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// Account 10, non empty root but extra slots in the beginning
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helper.addAccount("acc-10", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-10", []string{"key-0", "key-1", "key-2", "key-3"}, []string{"val-0", "val-1", "val-2", "val-3"})
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// Account 11, non empty root but extra slots in the middle
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helper.addAccount("acc-11", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-11", []string{"key-1", "key-2", "key-2-1", "key-3"}, []string{"val-1", "val-2", "val-2-1", "val-3"})
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// Account 12, non empty root but extra slots in the end
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helper.addAccount("acc-12", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapStorage("acc-12", []string{"key-1", "key-2", "key-3", "key-4"}, []string{"val-1", "val-2", "val-3", "val-4"})
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}
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root, snap := helper.Generate()
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t.Logf("Root: %#x\n", root) // Root = 0x8746cce9fd9c658b2cfd639878ed6584b7a2b3e73bb40f607fcfa156002429a0
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select {
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case <-snap.genPending:
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// Snapshot generation succeeded
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case <-time.After(3 * time.Second):
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t.Errorf("Snapshot generation failed")
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}
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checkSnapRoot(t, snap, root)
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// Signal abortion to the generator and wait for it to tear down
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stop := make(chan *generatorStats)
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snap.genAbort <- stop
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<-stop
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}
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// Tests that snapshot generation with existent flat state, where the flat state
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// contains some errors:
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// - miss accounts
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// - wrong accounts
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// - extra accounts
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func TestGenerateExistentStateWithWrongAccounts(t *testing.T) {
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helper := newHelper()
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stRoot := helper.makeStorageTrie([]string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
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// Trie accounts [acc-1, acc-2, acc-3, acc-4, acc-6]
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// Extra accounts [acc-0, acc-5, acc-7]
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// Missing accounts, only in the trie
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{
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helper.addTrieAccount("acc-1", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}) // Beginning
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helper.addTrieAccount("acc-4", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}) // Middle
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helper.addTrieAccount("acc-6", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()}) // End
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}
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// Wrong accounts
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{
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helper.addTrieAccount("acc-2", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapAccount("acc-2", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: common.Hex2Bytes("0x1234")})
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helper.addTrieAccount("acc-3", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
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helper.addSnapAccount("acc-3", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()})
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}
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// Extra accounts, only in the snap
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{
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helper.addSnapAccount("acc-0", &Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyRoot.Bytes()}) // before the beginning
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helper.addSnapAccount("acc-5", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: common.Hex2Bytes("0x1234")}) // Middle
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helper.addSnapAccount("acc-7", &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyRoot.Bytes()}) // after the end
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}
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root, snap := helper.Generate()
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t.Logf("Root: %#x\n", root) // Root = 0x825891472281463511e7ebcc7f109e4f9200c20fa384754e11fd605cd98464e8
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select {
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case <-snap.genPending:
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// Snapshot generation succeeded
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case <-time.After(3 * time.Second):
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t.Errorf("Snapshot generation failed")
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}
|
|
checkSnapRoot(t, snap, root)
|
|
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
}
|
|
|
|
// Tests that snapshot generation errors out correctly in case of a missing trie
|
|
// node in the account trie.
|
|
func TestGenerateCorruptAccountTrie(t *testing.T) {
|
|
// We can't use statedb to make a test trie (circular dependency), so make
|
|
// a fake one manually. We're going with a small account trie of 3 accounts,
|
|
// without any storage slots to keep the test smaller.
|
|
var (
|
|
diskdb = memorydb.New()
|
|
triedb = trie.NewDatabase(diskdb)
|
|
)
|
|
tr, _ := trie.NewSecure(common.Hash{}, triedb)
|
|
acc := &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
tr.Update([]byte("acc-1"), val) // 0xc7a30f39aff471c95d8a837497ad0e49b65be475cc0953540f80cfcdbdcd9074
|
|
|
|
acc = &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ = rlp.EncodeToBytes(acc)
|
|
tr.Update([]byte("acc-2"), val) // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
|
|
|
|
acc = &Account{Balance: big.NewInt(3), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ = rlp.EncodeToBytes(acc)
|
|
tr.Update([]byte("acc-3"), val) // 0x19ead688e907b0fab07176120dceec244a72aff2f0aa51e8b827584e378772f4
|
|
tr.Commit(nil) // Root: 0xa04693ea110a31037fb5ee814308a6f1d76bdab0b11676bdf4541d2de55ba978
|
|
|
|
// Delete an account trie leaf and ensure the generator chokes
|
|
triedb.Commit(common.HexToHash("0xa04693ea110a31037fb5ee814308a6f1d76bdab0b11676bdf4541d2de55ba978"), false, nil)
|
|
diskdb.Delete(common.HexToHash("0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7").Bytes())
|
|
|
|
snap := generateSnapshot(diskdb, triedb, 16, common.HexToHash("0xa04693ea110a31037fb5ee814308a6f1d76bdab0b11676bdf4541d2de55ba978"))
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
t.Errorf("Snapshot generated against corrupt account trie")
|
|
|
|
case <-time.After(time.Second):
|
|
// Not generated fast enough, hopefully blocked inside on missing trie node fail
|
|
}
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
}
|
|
|
|
// Tests that snapshot generation errors out correctly in case of a missing root
|
|
// trie node for a storage trie. It's similar to internal corruption but it is
|
|
// handled differently inside the generator.
|
|
func TestGenerateMissingStorageTrie(t *testing.T) {
|
|
// We can't use statedb to make a test trie (circular dependency), so make
|
|
// a fake one manually. We're going with a small account trie of 3 accounts,
|
|
// two of which also has the same 3-slot storage trie attached.
|
|
var (
|
|
diskdb = memorydb.New()
|
|
triedb = trie.NewDatabase(diskdb)
|
|
)
|
|
stTrie, _ := trie.NewSecure(common.Hash{}, triedb)
|
|
stTrie.Update([]byte("key-1"), []byte("val-1")) // 0x1314700b81afc49f94db3623ef1df38f3ed18b73a1b7ea2f6c095118cf6118a0
|
|
stTrie.Update([]byte("key-2"), []byte("val-2")) // 0x18a0f4d79cff4459642dd7604f303886ad9d77c30cf3d7d7cedb3a693ab6d371
|
|
stTrie.Update([]byte("key-3"), []byte("val-3")) // 0x51c71a47af0695957647fb68766d0becee77e953df17c29b3c2f25436f055c78
|
|
stTrie.Commit(nil) // Root: 0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67
|
|
|
|
accTrie, _ := trie.NewSecure(common.Hash{}, triedb)
|
|
acc := &Account{Balance: big.NewInt(1), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
accTrie.Update([]byte("acc-1"), val) // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
|
|
|
|
acc = &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ = rlp.EncodeToBytes(acc)
|
|
accTrie.Update([]byte("acc-2"), val) // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
|
|
|
|
acc = &Account{Balance: big.NewInt(3), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ = rlp.EncodeToBytes(acc)
|
|
accTrie.Update([]byte("acc-3"), val) // 0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2
|
|
accTrie.Commit(nil) // Root: 0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd
|
|
|
|
// We can only corrupt the disk database, so flush the tries out
|
|
triedb.Reference(
|
|
common.HexToHash("0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67"),
|
|
common.HexToHash("0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e"),
|
|
)
|
|
triedb.Reference(
|
|
common.HexToHash("0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67"),
|
|
common.HexToHash("0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2"),
|
|
)
|
|
triedb.Commit(common.HexToHash("0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd"), false, nil)
|
|
|
|
// Delete a storage trie root and ensure the generator chokes
|
|
diskdb.Delete(common.HexToHash("0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67").Bytes())
|
|
|
|
snap := generateSnapshot(diskdb, triedb, 16, common.HexToHash("0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd"))
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
t.Errorf("Snapshot generated against corrupt storage trie")
|
|
|
|
case <-time.After(time.Second):
|
|
// Not generated fast enough, hopefully blocked inside on missing trie node fail
|
|
}
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
}
|
|
|
|
// Tests that snapshot generation errors out correctly in case of a missing trie
|
|
// node in a storage trie.
|
|
func TestGenerateCorruptStorageTrie(t *testing.T) {
|
|
// We can't use statedb to make a test trie (circular dependency), so make
|
|
// a fake one manually. We're going with a small account trie of 3 accounts,
|
|
// two of which also has the same 3-slot storage trie attached.
|
|
var (
|
|
diskdb = memorydb.New()
|
|
triedb = trie.NewDatabase(diskdb)
|
|
)
|
|
stTrie, _ := trie.NewSecure(common.Hash{}, triedb)
|
|
stTrie.Update([]byte("key-1"), []byte("val-1")) // 0x1314700b81afc49f94db3623ef1df38f3ed18b73a1b7ea2f6c095118cf6118a0
|
|
stTrie.Update([]byte("key-2"), []byte("val-2")) // 0x18a0f4d79cff4459642dd7604f303886ad9d77c30cf3d7d7cedb3a693ab6d371
|
|
stTrie.Update([]byte("key-3"), []byte("val-3")) // 0x51c71a47af0695957647fb68766d0becee77e953df17c29b3c2f25436f055c78
|
|
stTrie.Commit(nil) // Root: 0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67
|
|
|
|
accTrie, _ := trie.NewSecure(common.Hash{}, triedb)
|
|
acc := &Account{Balance: big.NewInt(1), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
accTrie.Update([]byte("acc-1"), val) // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
|
|
|
|
acc = &Account{Balance: big.NewInt(2), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ = rlp.EncodeToBytes(acc)
|
|
accTrie.Update([]byte("acc-2"), val) // 0x65145f923027566669a1ae5ccac66f945b55ff6eaeb17d2ea8e048b7d381f2d7
|
|
|
|
acc = &Account{Balance: big.NewInt(3), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ = rlp.EncodeToBytes(acc)
|
|
accTrie.Update([]byte("acc-3"), val) // 0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2
|
|
accTrie.Commit(nil) // Root: 0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd
|
|
|
|
// We can only corrupt the disk database, so flush the tries out
|
|
triedb.Reference(
|
|
common.HexToHash("0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67"),
|
|
common.HexToHash("0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e"),
|
|
)
|
|
triedb.Reference(
|
|
common.HexToHash("0xddefcd9376dd029653ef384bd2f0a126bb755fe84fdcc9e7cf421ba454f2bc67"),
|
|
common.HexToHash("0x50815097425d000edfc8b3a4a13e175fc2bdcfee8bdfbf2d1ff61041d3c235b2"),
|
|
)
|
|
triedb.Commit(common.HexToHash("0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd"), false, nil)
|
|
|
|
// Delete a storage trie leaf and ensure the generator chokes
|
|
diskdb.Delete(common.HexToHash("0x18a0f4d79cff4459642dd7604f303886ad9d77c30cf3d7d7cedb3a693ab6d371").Bytes())
|
|
|
|
snap := generateSnapshot(diskdb, triedb, 16, common.HexToHash("0xe3712f1a226f3782caca78ca770ccc19ee000552813a9f59d479f8611db9b1fd"))
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
t.Errorf("Snapshot generated against corrupt storage trie")
|
|
|
|
case <-time.After(time.Second):
|
|
// Not generated fast enough, hopefully blocked inside on missing trie node fail
|
|
}
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
}
|
|
|
|
func getStorageTrie(n int, triedb *trie.Database) *trie.SecureTrie {
|
|
stTrie, _ := trie.NewSecure(common.Hash{}, triedb)
|
|
for i := 0; i < n; i++ {
|
|
k := fmt.Sprintf("key-%d", i)
|
|
v := fmt.Sprintf("val-%d", i)
|
|
stTrie.Update([]byte(k), []byte(v))
|
|
}
|
|
stTrie.Commit(nil)
|
|
return stTrie
|
|
}
|
|
|
|
// Tests that snapshot generation when an extra account with storage exists in the snap state.
|
|
func TestGenerateWithExtraAccounts(t *testing.T) {
|
|
var (
|
|
diskdb = memorydb.New()
|
|
triedb = trie.NewDatabase(diskdb)
|
|
stTrie = getStorageTrie(5, triedb)
|
|
)
|
|
accTrie, _ := trie.NewSecure(common.Hash{}, triedb)
|
|
{ // Account one in the trie
|
|
acc := &Account{Balance: big.NewInt(1), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
accTrie.Update([]byte("acc-1"), val) // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
|
|
// Identical in the snap
|
|
key := hashData([]byte("acc-1"))
|
|
rawdb.WriteAccountSnapshot(diskdb, key, val)
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("key-1")), []byte("val-1"))
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("key-2")), []byte("val-2"))
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("key-3")), []byte("val-3"))
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("key-4")), []byte("val-4"))
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("key-5")), []byte("val-5"))
|
|
}
|
|
{ // Account two exists only in the snapshot
|
|
acc := &Account{Balance: big.NewInt(1), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
key := hashData([]byte("acc-2"))
|
|
rawdb.WriteAccountSnapshot(diskdb, key, val)
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("b-key-1")), []byte("b-val-1"))
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("b-key-2")), []byte("b-val-2"))
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("b-key-3")), []byte("b-val-3"))
|
|
}
|
|
root, _, _ := accTrie.Commit(nil)
|
|
t.Logf("root: %x", root)
|
|
triedb.Commit(root, false, nil)
|
|
// To verify the test: If we now inspect the snap db, there should exist extraneous storage items
|
|
if data := rawdb.ReadStorageSnapshot(diskdb, hashData([]byte("acc-2")), hashData([]byte("b-key-1"))); data == nil {
|
|
t.Fatalf("expected snap storage to exist")
|
|
}
|
|
|
|
snap := generateSnapshot(diskdb, triedb, 16, root)
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
|
|
case <-time.After(3 * time.Second):
|
|
t.Errorf("Snapshot generation failed")
|
|
}
|
|
checkSnapRoot(t, snap, root)
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
// If we now inspect the snap db, there should exist no extraneous storage items
|
|
if data := rawdb.ReadStorageSnapshot(diskdb, hashData([]byte("acc-2")), hashData([]byte("b-key-1"))); data != nil {
|
|
t.Fatalf("expected slot to be removed, got %v", string(data))
|
|
}
|
|
}
|
|
|
|
func enableLogging() {
|
|
log.Root().SetHandler(log.LvlFilterHandler(log.LvlTrace, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
|
|
}
|
|
|
|
// Tests that snapshot generation when an extra account with storage exists in the snap state.
|
|
func TestGenerateWithManyExtraAccounts(t *testing.T) {
|
|
if false {
|
|
enableLogging()
|
|
}
|
|
var (
|
|
diskdb = memorydb.New()
|
|
triedb = trie.NewDatabase(diskdb)
|
|
stTrie = getStorageTrie(3, triedb)
|
|
)
|
|
accTrie, _ := trie.NewSecure(common.Hash{}, triedb)
|
|
{ // Account one in the trie
|
|
acc := &Account{Balance: big.NewInt(1), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
accTrie.Update([]byte("acc-1"), val) // 0x9250573b9c18c664139f3b6a7a8081b7d8f8916a8fcc5d94feec6c29f5fd4e9e
|
|
// Identical in the snap
|
|
key := hashData([]byte("acc-1"))
|
|
rawdb.WriteAccountSnapshot(diskdb, key, val)
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("key-1")), []byte("val-1"))
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("key-2")), []byte("val-2"))
|
|
rawdb.WriteStorageSnapshot(diskdb, key, hashData([]byte("key-3")), []byte("val-3"))
|
|
}
|
|
{ // 100 accounts exist only in snapshot
|
|
for i := 0; i < 1000; i++ {
|
|
//acc := &Account{Balance: big.NewInt(int64(i)), Root: stTrie.Hash().Bytes(), CodeHash: emptyCode.Bytes()}
|
|
acc := &Account{Balance: big.NewInt(int64(i)), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
key := hashData([]byte(fmt.Sprintf("acc-%d", i)))
|
|
rawdb.WriteAccountSnapshot(diskdb, key, val)
|
|
}
|
|
}
|
|
root, _, _ := accTrie.Commit(nil)
|
|
t.Logf("root: %x", root)
|
|
triedb.Commit(root, false, nil)
|
|
|
|
snap := generateSnapshot(diskdb, triedb, 16, root)
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
|
|
case <-time.After(3 * time.Second):
|
|
t.Errorf("Snapshot generation failed")
|
|
}
|
|
checkSnapRoot(t, snap, root)
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
}
|
|
|
|
// Tests this case
|
|
// maxAccountRange 3
|
|
// snapshot-accounts: 01, 02, 03, 04, 05, 06, 07
|
|
// trie-accounts: 03, 07
|
|
//
|
|
// We iterate three snapshot storage slots (max = 3) from the database. They are 0x01, 0x02, 0x03.
|
|
// The trie has a lot of deletions.
|
|
// So in trie, we iterate 2 entries 0x03, 0x07. We create the 0x07 in the database and abort the procedure, because the trie is exhausted.
|
|
// But in the database, we still have the stale storage slots 0x04, 0x05. They are not iterated yet, but the procedure is finished.
|
|
func TestGenerateWithExtraBeforeAndAfter(t *testing.T) {
|
|
accountCheckRange = 3
|
|
if false {
|
|
enableLogging()
|
|
}
|
|
var (
|
|
diskdb = memorydb.New()
|
|
triedb = trie.NewDatabase(diskdb)
|
|
)
|
|
accTrie, _ := trie.New(common.Hash{}, triedb)
|
|
{
|
|
acc := &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
accTrie.Update(common.HexToHash("0x03").Bytes(), val)
|
|
accTrie.Update(common.HexToHash("0x07").Bytes(), val)
|
|
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x01"), val)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x02"), val)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x03"), val)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x04"), val)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x05"), val)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x06"), val)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x07"), val)
|
|
}
|
|
|
|
root, _, _ := accTrie.Commit(nil)
|
|
t.Logf("root: %x", root)
|
|
triedb.Commit(root, false, nil)
|
|
|
|
snap := generateSnapshot(diskdb, triedb, 16, root)
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
|
|
case <-time.After(3 * time.Second):
|
|
t.Errorf("Snapshot generation failed")
|
|
}
|
|
checkSnapRoot(t, snap, root)
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
}
|
|
|
|
// TestGenerateWithMalformedSnapdata tests what happes if we have some junk
|
|
// in the snapshot database, which cannot be parsed back to an account
|
|
func TestGenerateWithMalformedSnapdata(t *testing.T) {
|
|
accountCheckRange = 3
|
|
if false {
|
|
enableLogging()
|
|
}
|
|
var (
|
|
diskdb = memorydb.New()
|
|
triedb = trie.NewDatabase(diskdb)
|
|
)
|
|
accTrie, _ := trie.New(common.Hash{}, triedb)
|
|
{
|
|
acc := &Account{Balance: big.NewInt(1), Root: emptyRoot.Bytes(), CodeHash: emptyCode.Bytes()}
|
|
val, _ := rlp.EncodeToBytes(acc)
|
|
accTrie.Update(common.HexToHash("0x03").Bytes(), val)
|
|
|
|
junk := make([]byte, 100)
|
|
copy(junk, []byte{0xde, 0xad})
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x02"), junk)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x03"), junk)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x04"), junk)
|
|
rawdb.WriteAccountSnapshot(diskdb, common.HexToHash("0x05"), junk)
|
|
}
|
|
|
|
root, _, _ := accTrie.Commit(nil)
|
|
t.Logf("root: %x", root)
|
|
triedb.Commit(root, false, nil)
|
|
|
|
snap := generateSnapshot(diskdb, triedb, 16, root)
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
|
|
case <-time.After(3 * time.Second):
|
|
t.Errorf("Snapshot generation failed")
|
|
}
|
|
checkSnapRoot(t, snap, root)
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
// If we now inspect the snap db, there should exist no extraneous storage items
|
|
if data := rawdb.ReadStorageSnapshot(diskdb, hashData([]byte("acc-2")), hashData([]byte("b-key-1"))); data != nil {
|
|
t.Fatalf("expected slot to be removed, got %v", string(data))
|
|
}
|
|
}
|
|
|
|
func TestGenerateFromEmptySnap(t *testing.T) {
|
|
//enableLogging()
|
|
accountCheckRange = 10
|
|
storageCheckRange = 20
|
|
helper := newHelper()
|
|
stRoot := helper.makeStorageTrie([]string{"key-1", "key-2", "key-3"}, []string{"val-1", "val-2", "val-3"})
|
|
// Add 1K accounts to the trie
|
|
for i := 0; i < 400; i++ {
|
|
helper.addTrieAccount(fmt.Sprintf("acc-%d", i),
|
|
&Account{Balance: big.NewInt(1), Root: stRoot, CodeHash: emptyCode.Bytes()})
|
|
}
|
|
root, snap := helper.Generate()
|
|
t.Logf("Root: %#x\n", root) // Root: 0x6f7af6d2e1a1bf2b84a3beb3f8b64388465fbc1e274ca5d5d3fc787ca78f59e4
|
|
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
|
|
case <-time.After(3 * time.Second):
|
|
t.Errorf("Snapshot generation failed")
|
|
}
|
|
checkSnapRoot(t, snap, root)
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
}
|
|
|
|
// Tests that snapshot generation with existent flat state, where the flat state
|
|
// storage is correct, but incomplete.
|
|
// The incomplete part is on the second range
|
|
// snap: [ 0x01, 0x02, 0x03, 0x04] , [ 0x05, 0x06, 0x07, {missing}] (with storageCheck = 4)
|
|
// trie: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
|
|
// This hits a case where the snap verification passes, but there are more elements in the trie
|
|
// which we must also add.
|
|
func TestGenerateWithIncompleteStorage(t *testing.T) {
|
|
storageCheckRange = 4
|
|
helper := newHelper()
|
|
stKeys := []string{"1", "2", "3", "4", "5", "6", "7", "8"}
|
|
stVals := []string{"v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8"}
|
|
stRoot := helper.makeStorageTrie(stKeys, stVals)
|
|
// We add 8 accounts, each one is missing exactly one of the storage slots. This means
|
|
// we don't have to order the keys and figure out exactly which hash-key winds up
|
|
// on the sensitive spots at the boundaries
|
|
for i := 0; i < 8; i++ {
|
|
accKey := fmt.Sprintf("acc-%d", i)
|
|
helper.addAccount(accKey, &Account{Balance: big.NewInt(int64(i)), Root: stRoot, CodeHash: emptyCode.Bytes()})
|
|
var moddedKeys []string
|
|
var moddedVals []string
|
|
for ii := 0; ii < 8; ii++ {
|
|
if ii != i {
|
|
moddedKeys = append(moddedKeys, stKeys[ii])
|
|
moddedVals = append(moddedVals, stVals[ii])
|
|
}
|
|
}
|
|
helper.addSnapStorage(accKey, moddedKeys, moddedVals)
|
|
}
|
|
|
|
root, snap := helper.Generate()
|
|
t.Logf("Root: %#x\n", root) // Root: 0xca73f6f05ba4ca3024ef340ef3dfca8fdabc1b677ff13f5a9571fd49c16e67ff
|
|
|
|
select {
|
|
case <-snap.genPending:
|
|
// Snapshot generation succeeded
|
|
|
|
case <-time.After(3 * time.Second):
|
|
t.Errorf("Snapshot generation failed")
|
|
}
|
|
checkSnapRoot(t, snap, root)
|
|
// Signal abortion to the generator and wait for it to tear down
|
|
stop := make(chan *generatorStats)
|
|
snap.genAbort <- stop
|
|
<-stop
|
|
}
|