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1118 lines
35 KiB
1118 lines
35 KiB
// 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 snap
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import (
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"bytes"
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"crypto/rand"
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"encoding/binary"
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"fmt"
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"math/big"
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"sort"
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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/core/state"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/light"
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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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func TestHashing(t *testing.T) {
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t.Parallel()
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var bytecodes = make([][]byte, 10)
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for i := 0; i < len(bytecodes); i++ {
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buf := make([]byte, 100)
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rand.Read(buf)
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bytecodes[i] = buf
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}
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var want, got string
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var old = func() {
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hasher := sha3.NewLegacyKeccak256()
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for i := 0; i < len(bytecodes); i++ {
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hasher.Reset()
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hasher.Write(bytecodes[i])
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hash := hasher.Sum(nil)
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got = fmt.Sprintf("%v\n%v", got, hash)
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}
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}
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var new = func() {
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hasher := sha3.NewLegacyKeccak256().(crypto.KeccakState)
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var hash = make([]byte, 32)
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for i := 0; i < len(bytecodes); i++ {
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hasher.Reset()
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hasher.Write(bytecodes[i])
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hasher.Read(hash)
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want = fmt.Sprintf("%v\n%v", want, hash)
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}
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}
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old()
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new()
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if want != got {
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t.Errorf("want\n%v\ngot\n%v\n", want, got)
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}
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}
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func BenchmarkHashing(b *testing.B) {
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var bytecodes = make([][]byte, 10000)
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for i := 0; i < len(bytecodes); i++ {
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buf := make([]byte, 100)
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rand.Read(buf)
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bytecodes[i] = buf
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}
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var old = func() {
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hasher := sha3.NewLegacyKeccak256()
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for i := 0; i < len(bytecodes); i++ {
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hasher.Reset()
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hasher.Write(bytecodes[i])
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hasher.Sum(nil)
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}
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}
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var new = func() {
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hasher := sha3.NewLegacyKeccak256().(crypto.KeccakState)
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var hash = make([]byte, 32)
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for i := 0; i < len(bytecodes); i++ {
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hasher.Reset()
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hasher.Write(bytecodes[i])
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hasher.Read(hash)
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}
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}
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b.Run("old", func(b *testing.B) {
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b.ReportAllocs()
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for i := 0; i < b.N; i++ {
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old()
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}
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})
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b.Run("new", func(b *testing.B) {
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b.ReportAllocs()
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for i := 0; i < b.N; i++ {
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new()
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}
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})
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}
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type storageHandlerFunc func(t *testPeer, requestId uint64, root common.Hash, accounts []common.Hash, origin, limit []byte, max uint64) error
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type accountHandlerFunc func(t *testPeer, requestId uint64, root common.Hash, origin common.Hash, cap uint64) error
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type trieHandlerFunc func(t *testPeer, requestId uint64, root common.Hash, paths []TrieNodePathSet, cap uint64) error
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type codeHandlerFunc func(t *testPeer, id uint64, hashes []common.Hash, max uint64) error
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type testPeer struct {
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id string
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test *testing.T
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remote *Syncer
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logger log.Logger
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accountTrie *trie.Trie
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accountValues entrySlice
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storageTries map[common.Hash]*trie.Trie
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storageValues map[common.Hash]entrySlice
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accountRequestHandler accountHandlerFunc
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storageRequestHandler storageHandlerFunc
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trieRequestHandler trieHandlerFunc
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codeRequestHandler codeHandlerFunc
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cancelCh chan struct{}
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}
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func newTestPeer(id string, t *testing.T, cancelCh chan struct{}) *testPeer {
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peer := &testPeer{
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id: id,
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test: t,
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logger: log.New("id", id),
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accountRequestHandler: defaultAccountRequestHandler,
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trieRequestHandler: defaultTrieRequestHandler,
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storageRequestHandler: defaultStorageRequestHandler,
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codeRequestHandler: defaultCodeRequestHandler,
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cancelCh: cancelCh,
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}
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//stderrHandler := log.StreamHandler(os.Stderr, log.TerminalFormat(true))
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//peer.logger.SetHandler(stderrHandler)
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return peer
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}
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func (t *testPeer) ID() string { return t.id }
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func (t *testPeer) Log() log.Logger { return t.logger }
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func (t *testPeer) RequestAccountRange(id uint64, root, origin, limit common.Hash, bytes uint64) error {
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t.logger.Trace("Fetching range of accounts", "reqid", id, "root", root, "origin", origin, "limit", limit, "bytes", common.StorageSize(bytes))
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go t.accountRequestHandler(t, id, root, origin, bytes)
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return nil
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}
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func (t *testPeer) RequestTrieNodes(id uint64, root common.Hash, paths []TrieNodePathSet, bytes uint64) error {
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t.logger.Trace("Fetching set of trie nodes", "reqid", id, "root", root, "pathsets", len(paths), "bytes", common.StorageSize(bytes))
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go t.trieRequestHandler(t, id, root, paths, bytes)
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return nil
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}
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func (t *testPeer) RequestStorageRanges(id uint64, root common.Hash, accounts []common.Hash, origin, limit []byte, bytes uint64) error {
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if len(accounts) == 1 && origin != nil {
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t.logger.Trace("Fetching range of large storage slots", "reqid", id, "root", root, "account", accounts[0], "origin", common.BytesToHash(origin), "limit", common.BytesToHash(limit), "bytes", common.StorageSize(bytes))
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} else {
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t.logger.Trace("Fetching ranges of small storage slots", "reqid", id, "root", root, "accounts", len(accounts), "first", accounts[0], "bytes", common.StorageSize(bytes))
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}
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go t.storageRequestHandler(t, id, root, accounts, origin, limit, bytes)
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return nil
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}
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func (t *testPeer) RequestByteCodes(id uint64, hashes []common.Hash, bytes uint64) error {
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t.logger.Trace("Fetching set of byte codes", "reqid", id, "hashes", len(hashes), "bytes", common.StorageSize(bytes))
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go t.codeRequestHandler(t, id, hashes, bytes)
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return nil
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}
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// defaultTrieRequestHandler is a well-behaving handler for trie healing requests
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func defaultTrieRequestHandler(t *testPeer, requestId uint64, root common.Hash, paths []TrieNodePathSet, cap uint64) error {
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// Pass the response
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var nodes [][]byte
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for _, pathset := range paths {
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switch len(pathset) {
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case 1:
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blob, _, err := t.accountTrie.TryGetNode(pathset[0])
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if err != nil {
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t.logger.Info("Error handling req", "error", err)
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break
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}
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nodes = append(nodes, blob)
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default:
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account := t.storageTries[(common.BytesToHash(pathset[0]))]
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for _, path := range pathset[1:] {
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blob, _, err := account.TryGetNode(path)
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if err != nil {
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t.logger.Info("Error handling req", "error", err)
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break
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}
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nodes = append(nodes, blob)
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}
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}
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}
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t.remote.OnTrieNodes(t, requestId, nodes)
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return nil
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}
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// defaultAccountRequestHandler is a well-behaving handler for AccountRangeRequests
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func defaultAccountRequestHandler(t *testPeer, id uint64, root common.Hash, origin common.Hash, cap uint64) error {
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keys, vals, proofs := createAccountRequestResponse(t, root, origin, cap)
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if err := t.remote.OnAccounts(t, id, keys, vals, proofs); err != nil {
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t.logger.Error("remote error on delivery", "error", err)
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t.test.Errorf("Remote side rejected our delivery: %v", err)
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t.remote.Unregister(t.id)
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close(t.cancelCh)
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return err
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}
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return nil
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}
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func createAccountRequestResponse(t *testPeer, root common.Hash, origin common.Hash, cap uint64) (keys []common.Hash, vals [][]byte, proofs [][]byte) {
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var size uint64
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for _, entry := range t.accountValues {
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if size > cap {
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break
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}
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if bytes.Compare(origin[:], entry.k) <= 0 {
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keys = append(keys, common.BytesToHash(entry.k))
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vals = append(vals, entry.v)
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size += uint64(32 + len(entry.v))
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}
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}
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// Unless we send the entire trie, we need to supply proofs
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// Actually, we need to supply proofs either way! This seems tob be an implementation
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// quirk in go-ethereum
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proof := light.NewNodeSet()
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if err := t.accountTrie.Prove(origin[:], 0, proof); err != nil {
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t.logger.Error("Could not prove inexistence of origin", "origin", origin,
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"error", err)
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}
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if len(keys) > 0 {
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lastK := (keys[len(keys)-1])[:]
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if err := t.accountTrie.Prove(lastK, 0, proof); err != nil {
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t.logger.Error("Could not prove last item",
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"error", err)
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}
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}
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for _, blob := range proof.NodeList() {
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proofs = append(proofs, blob)
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}
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return keys, vals, proofs
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}
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// defaultStorageRequestHandler is a well-behaving storage request handler
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func defaultStorageRequestHandler(t *testPeer, requestId uint64, root common.Hash, accounts []common.Hash, bOrigin, bLimit []byte, max uint64) error {
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hashes, slots, proofs := createStorageRequestResponse(t, root, accounts, bOrigin, bLimit, max)
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if err := t.remote.OnStorage(t, requestId, hashes, slots, proofs); err != nil {
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t.logger.Error("remote error on delivery", "error", err)
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t.test.Errorf("Remote side rejected our delivery: %v", err)
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close(t.cancelCh)
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}
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return nil
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}
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func defaultCodeRequestHandler(t *testPeer, id uint64, hashes []common.Hash, max uint64) error {
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var bytecodes [][]byte
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for _, h := range hashes {
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bytecodes = append(bytecodes, getCode(h))
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}
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if err := t.remote.OnByteCodes(t, id, bytecodes); err != nil {
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t.logger.Error("remote error on delivery", "error", err)
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t.test.Errorf("Remote side rejected our delivery: %v", err)
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close(t.cancelCh)
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}
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return nil
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}
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func createStorageRequestResponse(t *testPeer, root common.Hash, accounts []common.Hash, bOrigin, bLimit []byte, max uint64) (hashes [][]common.Hash, slots [][][]byte, proofs [][]byte) {
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var (
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size uint64
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limit = common.HexToHash("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")
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)
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if len(bLimit) > 0 {
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limit = common.BytesToHash(bLimit)
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}
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var origin common.Hash
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if len(bOrigin) > 0 {
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origin = common.BytesToHash(bOrigin)
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}
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var limitExceeded bool
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var incomplete bool
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for _, account := range accounts {
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var keys []common.Hash
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var vals [][]byte
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for _, entry := range t.storageValues[account] {
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if limitExceeded {
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incomplete = true
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break
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}
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if bytes.Compare(entry.k, origin[:]) < 0 {
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incomplete = true
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continue
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}
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keys = append(keys, common.BytesToHash(entry.k))
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vals = append(vals, entry.v)
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size += uint64(32 + len(entry.v))
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if bytes.Compare(entry.k, limit[:]) >= 0 {
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limitExceeded = true
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}
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if size > max {
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limitExceeded = true
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}
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}
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hashes = append(hashes, keys)
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slots = append(slots, vals)
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if incomplete {
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// If we're aborting, we need to prove the first and last item
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// This terminates the response (and thus the loop)
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proof := light.NewNodeSet()
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stTrie := t.storageTries[account]
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// Here's a potential gotcha: when constructing the proof, we cannot
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// use the 'origin' slice directly, but must use the full 32-byte
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// hash form.
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if err := stTrie.Prove(origin[:], 0, proof); err != nil {
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t.logger.Error("Could not prove inexistence of origin", "origin", origin,
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"error", err)
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}
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if len(keys) > 0 {
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lastK := (keys[len(keys)-1])[:]
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if err := stTrie.Prove(lastK, 0, proof); err != nil {
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t.logger.Error("Could not prove last item", "error", err)
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}
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}
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for _, blob := range proof.NodeList() {
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proofs = append(proofs, blob)
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}
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break
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}
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}
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return hashes, slots, proofs
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}
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// emptyRequestAccountRangeFn is a rejects AccountRangeRequests
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func emptyRequestAccountRangeFn(t *testPeer, requestId uint64, root common.Hash, origin common.Hash, cap uint64) error {
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var proofs [][]byte
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var keys []common.Hash
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var vals [][]byte
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t.remote.OnAccounts(t, requestId, keys, vals, proofs)
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return nil
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}
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func nonResponsiveRequestAccountRangeFn(t *testPeer, requestId uint64, root common.Hash, origin common.Hash, cap uint64) error {
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return nil
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}
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func emptyTrieRequestHandler(t *testPeer, requestId uint64, root common.Hash, paths []TrieNodePathSet, cap uint64) error {
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var nodes [][]byte
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t.remote.OnTrieNodes(t, requestId, nodes)
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return nil
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}
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func nonResponsiveTrieRequestHandler(t *testPeer, requestId uint64, root common.Hash, paths []TrieNodePathSet, cap uint64) error {
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return nil
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}
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func emptyStorageRequestHandler(t *testPeer, requestId uint64, root common.Hash, accounts []common.Hash, origin, limit []byte, max uint64) error {
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var hashes [][]common.Hash
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var slots [][][]byte
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var proofs [][]byte
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t.remote.OnStorage(t, requestId, hashes, slots, proofs)
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return nil
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}
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func nonResponsiveStorageRequestHandler(t *testPeer, requestId uint64, root common.Hash, accounts []common.Hash, origin, limit []byte, max uint64) error {
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return nil
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}
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//func emptyCodeRequestHandler(t *testPeer, id uint64, hashes []common.Hash, max uint64) error {
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// var bytecodes [][]byte
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// t.remote.OnByteCodes(t, id, bytecodes)
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// return nil
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//}
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func corruptCodeRequestHandler(t *testPeer, id uint64, hashes []common.Hash, max uint64) error {
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var bytecodes [][]byte
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for _, h := range hashes {
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// Send back the hashes
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bytecodes = append(bytecodes, h[:])
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}
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if err := t.remote.OnByteCodes(t, id, bytecodes); err != nil {
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t.logger.Error("remote error on delivery", "error", err)
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// Mimic the real-life handler, which drops a peer on errors
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t.remote.Unregister(t.id)
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}
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return nil
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}
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func cappedCodeRequestHandler(t *testPeer, id uint64, hashes []common.Hash, max uint64) error {
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var bytecodes [][]byte
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for _, h := range hashes[:1] {
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bytecodes = append(bytecodes, getCode(h))
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}
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if err := t.remote.OnByteCodes(t, id, bytecodes); err != nil {
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t.logger.Error("remote error on delivery", "error", err)
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// Mimic the real-life handler, which drops a peer on errors
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t.remote.Unregister(t.id)
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}
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return nil
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}
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// starvingStorageRequestHandler is somewhat well-behaving storage handler, but it caps the returned results to be very small
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func starvingStorageRequestHandler(t *testPeer, requestId uint64, root common.Hash, accounts []common.Hash, origin, limit []byte, max uint64) error {
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return defaultStorageRequestHandler(t, requestId, root, accounts, origin, limit, 500)
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}
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func starvingAccountRequestHandler(t *testPeer, requestId uint64, root common.Hash, origin common.Hash, cap uint64) error {
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return defaultAccountRequestHandler(t, requestId, root, origin, 500)
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}
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//func misdeliveringAccountRequestHandler(t *testPeer, requestId uint64, root common.Hash, origin common.Hash, cap uint64) error {
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// return defaultAccountRequestHandler(t, requestId-1, root, origin, 500)
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//}
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func corruptAccountRequestHandler(t *testPeer, requestId uint64, root common.Hash, origin common.Hash, cap uint64) error {
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hashes, accounts, proofs := createAccountRequestResponse(t, root, origin, cap)
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if len(proofs) > 0 {
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proofs = proofs[1:]
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}
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if err := t.remote.OnAccounts(t, requestId, hashes, accounts, proofs); err != nil {
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t.logger.Info("remote error on delivery (as expected)", "error", err)
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// Mimic the real-life handler, which drops a peer on errors
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t.remote.Unregister(t.id)
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}
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return nil
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}
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// corruptStorageRequestHandler doesn't provide good proofs
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func corruptStorageRequestHandler(t *testPeer, requestId uint64, root common.Hash, accounts []common.Hash, origin, limit []byte, max uint64) error {
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hashes, slots, proofs := createStorageRequestResponse(t, root, accounts, origin, limit, max)
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if len(proofs) > 0 {
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proofs = proofs[1:]
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}
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if err := t.remote.OnStorage(t, requestId, hashes, slots, proofs); err != nil {
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t.logger.Info("remote error on delivery (as expected)", "error", err)
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// Mimic the real-life handler, which drops a peer on errors
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t.remote.Unregister(t.id)
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}
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return nil
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}
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func noProofStorageRequestHandler(t *testPeer, requestId uint64, root common.Hash, accounts []common.Hash, origin, limit []byte, max uint64) error {
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hashes, slots, _ := createStorageRequestResponse(t, root, accounts, origin, limit, max)
|
|
if err := t.remote.OnStorage(t, requestId, hashes, slots, nil); err != nil {
|
|
t.logger.Info("remote error on delivery (as expected)", "error", err)
|
|
// Mimic the real-life handler, which drops a peer on errors
|
|
t.remote.Unregister(t.id)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// TestSyncBloatedProof tests a scenario where we provide only _one_ value, but
|
|
// also ship the entire trie inside the proof. If the attack is successful,
|
|
// the remote side does not do any follow-up requests
|
|
func TestSyncBloatedProof(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
sourceAccountTrie, elems := makeAccountTrieNoStorage(100)
|
|
cancel := make(chan struct{})
|
|
source := newTestPeer("source", t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
|
|
source.accountRequestHandler = func(t *testPeer, requestId uint64, root common.Hash, origin common.Hash, cap uint64) error {
|
|
var proofs [][]byte
|
|
var keys []common.Hash
|
|
var vals [][]byte
|
|
|
|
// The values
|
|
for _, entry := range t.accountValues {
|
|
if bytes.Compare(origin[:], entry.k) <= 0 {
|
|
keys = append(keys, common.BytesToHash(entry.k))
|
|
vals = append(vals, entry.v)
|
|
}
|
|
}
|
|
// The proofs
|
|
proof := light.NewNodeSet()
|
|
if err := t.accountTrie.Prove(origin[:], 0, proof); err != nil {
|
|
t.logger.Error("Could not prove origin", "origin", origin, "error", err)
|
|
}
|
|
// The bloat: add proof of every single element
|
|
for _, entry := range t.accountValues {
|
|
if err := t.accountTrie.Prove(entry.k, 0, proof); err != nil {
|
|
t.logger.Error("Could not prove item", "error", err)
|
|
}
|
|
}
|
|
// And remove one item from the elements
|
|
if len(keys) > 2 {
|
|
keys = append(keys[:1], keys[2:]...)
|
|
vals = append(vals[:1], vals[2:]...)
|
|
}
|
|
for _, blob := range proof.NodeList() {
|
|
proofs = append(proofs, blob)
|
|
}
|
|
if err := t.remote.OnAccounts(t, requestId, keys, vals, proofs); err != nil {
|
|
t.logger.Info("remote error on delivery", "error", err)
|
|
// This is actually correct, signal to exit the test successfully
|
|
close(t.cancelCh)
|
|
}
|
|
return nil
|
|
}
|
|
syncer := setupSyncer(source)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err == nil {
|
|
t.Fatal("No error returned from incomplete/cancelled sync")
|
|
}
|
|
}
|
|
|
|
func setupSyncer(peers ...*testPeer) *Syncer {
|
|
stateDb := rawdb.NewMemoryDatabase()
|
|
syncer := NewSyncer(stateDb, trie.NewSyncBloom(1, stateDb))
|
|
for _, peer := range peers {
|
|
syncer.Register(peer)
|
|
peer.remote = syncer
|
|
}
|
|
return syncer
|
|
}
|
|
|
|
// TestSync tests a basic sync with one peer
|
|
func TestSync(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
sourceAccountTrie, elems := makeAccountTrieNoStorage(100)
|
|
|
|
mkSource := func(name string) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(mkSource("sourceA"))
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
}
|
|
|
|
// TestSyncTinyTriePanic tests a basic sync with one peer, and a tiny trie. This caused a
|
|
// panic within the prover
|
|
func TestSyncTinyTriePanic(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems := makeAccountTrieNoStorage(1)
|
|
|
|
mkSource := func(name string) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(
|
|
mkSource("nice-a"),
|
|
)
|
|
done := checkStall(t, cancel)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
close(done)
|
|
}
|
|
|
|
// TestMultiSync tests a basic sync with multiple peers
|
|
func TestMultiSync(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
sourceAccountTrie, elems := makeAccountTrieNoStorage(100)
|
|
|
|
mkSource := func(name string) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(mkSource("sourceA"), mkSource("sourceB"))
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
}
|
|
|
|
// TestSyncWithStorage tests basic sync using accounts + storage + code
|
|
func TestSyncWithStorage(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
sourceAccountTrie, elems, storageTries, storageElems := makeAccountTrieWithStorage(3, 3000, true)
|
|
|
|
mkSource := func(name string) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.storageTries = storageTries
|
|
source.storageValues = storageElems
|
|
return source
|
|
}
|
|
syncer := setupSyncer(mkSource("sourceA"))
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
}
|
|
|
|
// TestMultiSyncManyUseless contains one good peer, and many which doesn't return anything valuable at all
|
|
func TestMultiSyncManyUseless(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems, storageTries, storageElems := makeAccountTrieWithStorage(100, 3000, true)
|
|
|
|
mkSource := func(name string, a, b, c bool) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.storageTries = storageTries
|
|
source.storageValues = storageElems
|
|
|
|
if !a {
|
|
source.accountRequestHandler = emptyRequestAccountRangeFn
|
|
}
|
|
if !b {
|
|
source.storageRequestHandler = emptyStorageRequestHandler
|
|
}
|
|
if !c {
|
|
source.trieRequestHandler = emptyTrieRequestHandler
|
|
}
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(
|
|
mkSource("full", true, true, true),
|
|
mkSource("noAccounts", false, true, true),
|
|
mkSource("noStorage", true, false, true),
|
|
mkSource("noTrie", true, true, false),
|
|
)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
}
|
|
|
|
// TestMultiSyncManyUseless contains one good peer, and many which doesn't return anything valuable at all
|
|
func TestMultiSyncManyUselessWithLowTimeout(t *testing.T) {
|
|
// We're setting the timeout to very low, to increase the chance of the timeout
|
|
// being triggered. This was previously a cause of panic, when a response
|
|
// arrived simultaneously as a timeout was triggered.
|
|
defer func(old time.Duration) { requestTimeout = old }(requestTimeout)
|
|
requestTimeout = time.Millisecond
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems, storageTries, storageElems := makeAccountTrieWithStorage(100, 3000, true)
|
|
|
|
mkSource := func(name string, a, b, c bool) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.storageTries = storageTries
|
|
source.storageValues = storageElems
|
|
|
|
if !a {
|
|
source.accountRequestHandler = emptyRequestAccountRangeFn
|
|
}
|
|
if !b {
|
|
source.storageRequestHandler = emptyStorageRequestHandler
|
|
}
|
|
if !c {
|
|
source.trieRequestHandler = emptyTrieRequestHandler
|
|
}
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(
|
|
mkSource("full", true, true, true),
|
|
mkSource("noAccounts", false, true, true),
|
|
mkSource("noStorage", true, false, true),
|
|
mkSource("noTrie", true, true, false),
|
|
)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
}
|
|
|
|
// TestMultiSyncManyUnresponsive contains one good peer, and many which doesn't respond at all
|
|
func TestMultiSyncManyUnresponsive(t *testing.T) {
|
|
// We're setting the timeout to very low, to make the test run a bit faster
|
|
defer func(old time.Duration) { requestTimeout = old }(requestTimeout)
|
|
requestTimeout = time.Millisecond
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems, storageTries, storageElems := makeAccountTrieWithStorage(100, 3000, true)
|
|
|
|
mkSource := func(name string, a, b, c bool) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.storageTries = storageTries
|
|
source.storageValues = storageElems
|
|
|
|
if !a {
|
|
source.accountRequestHandler = nonResponsiveRequestAccountRangeFn
|
|
}
|
|
if !b {
|
|
source.storageRequestHandler = nonResponsiveStorageRequestHandler
|
|
}
|
|
if !c {
|
|
source.trieRequestHandler = nonResponsiveTrieRequestHandler
|
|
}
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(
|
|
mkSource("full", true, true, true),
|
|
mkSource("noAccounts", false, true, true),
|
|
mkSource("noStorage", true, false, true),
|
|
mkSource("noTrie", true, true, false),
|
|
)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
}
|
|
|
|
func checkStall(t *testing.T, cancel chan struct{}) chan struct{} {
|
|
testDone := make(chan struct{})
|
|
go func() {
|
|
select {
|
|
case <-time.After(time.Minute): // TODO(karalabe): Make tests smaller, this is too much
|
|
t.Log("Sync stalled")
|
|
close(cancel)
|
|
case <-testDone:
|
|
return
|
|
}
|
|
}()
|
|
return testDone
|
|
}
|
|
|
|
// TestSyncNoStorageAndOneCappedPeer tests sync using accounts and no storage, where one peer is
|
|
// consistently returning very small results
|
|
func TestSyncNoStorageAndOneCappedPeer(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems := makeAccountTrieNoStorage(3000)
|
|
|
|
mkSource := func(name string, slow bool) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
|
|
if slow {
|
|
source.accountRequestHandler = starvingAccountRequestHandler
|
|
}
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(
|
|
mkSource("nice-a", false),
|
|
mkSource("nice-b", false),
|
|
mkSource("nice-c", false),
|
|
mkSource("capped", true),
|
|
)
|
|
done := checkStall(t, cancel)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
close(done)
|
|
}
|
|
|
|
// TestSyncNoStorageAndOneCodeCorruptPeer has one peer which doesn't deliver
|
|
// code requests properly.
|
|
func TestSyncNoStorageAndOneCodeCorruptPeer(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems := makeAccountTrieNoStorage(3000)
|
|
|
|
mkSource := func(name string, codeFn codeHandlerFunc) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.codeRequestHandler = codeFn
|
|
return source
|
|
}
|
|
// One is capped, one is corrupt. If we don't use a capped one, there's a 50%
|
|
// chance that the full set of codes requested are sent only to the
|
|
// non-corrupt peer, which delivers everything in one go, and makes the
|
|
// test moot
|
|
syncer := setupSyncer(
|
|
mkSource("capped", cappedCodeRequestHandler),
|
|
mkSource("corrupt", corruptCodeRequestHandler),
|
|
)
|
|
done := checkStall(t, cancel)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
close(done)
|
|
}
|
|
|
|
func TestSyncNoStorageAndOneAccountCorruptPeer(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems := makeAccountTrieNoStorage(3000)
|
|
|
|
mkSource := func(name string, accFn accountHandlerFunc) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.accountRequestHandler = accFn
|
|
return source
|
|
}
|
|
// One is capped, one is corrupt. If we don't use a capped one, there's a 50%
|
|
// chance that the full set of codes requested are sent only to the
|
|
// non-corrupt peer, which delivers everything in one go, and makes the
|
|
// test moot
|
|
syncer := setupSyncer(
|
|
mkSource("capped", defaultAccountRequestHandler),
|
|
mkSource("corrupt", corruptAccountRequestHandler),
|
|
)
|
|
done := checkStall(t, cancel)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
close(done)
|
|
}
|
|
|
|
// TestSyncNoStorageAndOneCodeCappedPeer has one peer which delivers code hashes
|
|
// one by one
|
|
func TestSyncNoStorageAndOneCodeCappedPeer(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems := makeAccountTrieNoStorage(3000)
|
|
|
|
mkSource := func(name string, codeFn codeHandlerFunc) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.codeRequestHandler = codeFn
|
|
return source
|
|
}
|
|
// Count how many times it's invoked. Remember, there are only 8 unique hashes,
|
|
// so it shouldn't be more than that
|
|
var counter int
|
|
syncer := setupSyncer(
|
|
mkSource("capped", func(t *testPeer, id uint64, hashes []common.Hash, max uint64) error {
|
|
counter++
|
|
return cappedCodeRequestHandler(t, id, hashes, max)
|
|
}),
|
|
)
|
|
done := checkStall(t, cancel)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
close(done)
|
|
// There are only 8 unique hashes, and 3K accounts. However, the code
|
|
// deduplication is per request batch. If it were a perfect global dedup,
|
|
// we would expect only 8 requests. If there were no dedup, there would be
|
|
// 3k requests.
|
|
// We expect somewhere below 100 requests for these 8 unique hashes.
|
|
if threshold := 100; counter > threshold {
|
|
t.Fatalf("Error, expected < %d invocations, got %d", threshold, counter)
|
|
}
|
|
}
|
|
|
|
// TestSyncWithStorageAndOneCappedPeer tests sync using accounts + storage, where one peer is
|
|
// consistently returning very small results
|
|
func TestSyncWithStorageAndOneCappedPeer(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems, storageTries, storageElems := makeAccountTrieWithStorage(300, 1000, false)
|
|
|
|
mkSource := func(name string, slow bool) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.storageTries = storageTries
|
|
source.storageValues = storageElems
|
|
|
|
if slow {
|
|
source.storageRequestHandler = starvingStorageRequestHandler
|
|
}
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(
|
|
mkSource("nice-a", false),
|
|
mkSource("slow", true),
|
|
)
|
|
done := checkStall(t, cancel)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
close(done)
|
|
}
|
|
|
|
// TestSyncWithStorageAndCorruptPeer tests sync using accounts + storage, where one peer is
|
|
// sometimes sending bad proofs
|
|
func TestSyncWithStorageAndCorruptPeer(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems, storageTries, storageElems := makeAccountTrieWithStorage(100, 3000, true)
|
|
|
|
mkSource := func(name string, handler storageHandlerFunc) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.storageTries = storageTries
|
|
source.storageValues = storageElems
|
|
source.storageRequestHandler = handler
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(
|
|
mkSource("nice-a", defaultStorageRequestHandler),
|
|
mkSource("nice-b", defaultStorageRequestHandler),
|
|
mkSource("nice-c", defaultStorageRequestHandler),
|
|
mkSource("corrupt", corruptStorageRequestHandler),
|
|
)
|
|
done := checkStall(t, cancel)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
close(done)
|
|
}
|
|
|
|
func TestSyncWithStorageAndNonProvingPeer(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cancel := make(chan struct{})
|
|
|
|
sourceAccountTrie, elems, storageTries, storageElems := makeAccountTrieWithStorage(100, 3000, true)
|
|
|
|
mkSource := func(name string, handler storageHandlerFunc) *testPeer {
|
|
source := newTestPeer(name, t, cancel)
|
|
source.accountTrie = sourceAccountTrie
|
|
source.accountValues = elems
|
|
source.storageTries = storageTries
|
|
source.storageValues = storageElems
|
|
source.storageRequestHandler = handler
|
|
return source
|
|
}
|
|
|
|
syncer := setupSyncer(
|
|
mkSource("nice-a", defaultStorageRequestHandler),
|
|
mkSource("nice-b", defaultStorageRequestHandler),
|
|
mkSource("nice-c", defaultStorageRequestHandler),
|
|
mkSource("corrupt", noProofStorageRequestHandler),
|
|
)
|
|
done := checkStall(t, cancel)
|
|
if err := syncer.Sync(sourceAccountTrie.Hash(), cancel); err != nil {
|
|
t.Fatalf("sync failed: %v", err)
|
|
}
|
|
close(done)
|
|
}
|
|
|
|
type kv struct {
|
|
k, v []byte
|
|
t bool
|
|
}
|
|
|
|
// Some helpers for sorting
|
|
type entrySlice []*kv
|
|
|
|
func (p entrySlice) Len() int { return len(p) }
|
|
func (p entrySlice) Less(i, j int) bool { return bytes.Compare(p[i].k, p[j].k) < 0 }
|
|
func (p entrySlice) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
|
|
|
|
func key32(i uint64) []byte {
|
|
key := make([]byte, 32)
|
|
binary.LittleEndian.PutUint64(key, i)
|
|
return key
|
|
}
|
|
|
|
var (
|
|
codehashes = []common.Hash{
|
|
crypto.Keccak256Hash([]byte{0}),
|
|
crypto.Keccak256Hash([]byte{1}),
|
|
crypto.Keccak256Hash([]byte{2}),
|
|
crypto.Keccak256Hash([]byte{3}),
|
|
crypto.Keccak256Hash([]byte{4}),
|
|
crypto.Keccak256Hash([]byte{5}),
|
|
crypto.Keccak256Hash([]byte{6}),
|
|
crypto.Keccak256Hash([]byte{7}),
|
|
}
|
|
)
|
|
|
|
// getACodeHash returns a pseudo-random code hash
|
|
func getACodeHash(i uint64) []byte {
|
|
h := codehashes[int(i)%len(codehashes)]
|
|
return common.CopyBytes(h[:])
|
|
}
|
|
|
|
// convenience function to lookup the code from the code hash
|
|
func getCode(hash common.Hash) []byte {
|
|
if hash == emptyCode {
|
|
return nil
|
|
}
|
|
for i, h := range codehashes {
|
|
if h == hash {
|
|
return []byte{byte(i)}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// makeAccountTrieNoStorage spits out a trie, along with the leafs
|
|
func makeAccountTrieNoStorage(n int) (*trie.Trie, entrySlice) {
|
|
db := trie.NewDatabase(rawdb.NewMemoryDatabase())
|
|
accTrie, _ := trie.New(common.Hash{}, db)
|
|
var entries entrySlice
|
|
for i := uint64(1); i <= uint64(n); i++ {
|
|
value, _ := rlp.EncodeToBytes(state.Account{
|
|
Nonce: i,
|
|
Balance: big.NewInt(int64(i)),
|
|
Root: emptyRoot,
|
|
CodeHash: getACodeHash(i),
|
|
})
|
|
key := key32(i)
|
|
elem := &kv{key, value, false}
|
|
accTrie.Update(elem.k, elem.v)
|
|
entries = append(entries, elem)
|
|
}
|
|
sort.Sort(entries)
|
|
// Push to disk layer
|
|
accTrie.Commit(nil)
|
|
return accTrie, entries
|
|
}
|
|
|
|
// makeAccountTrieWithStorage spits out a trie, along with the leafs
|
|
func makeAccountTrieWithStorage(accounts, slots int, code bool) (*trie.Trie, entrySlice,
|
|
map[common.Hash]*trie.Trie, map[common.Hash]entrySlice) {
|
|
|
|
var (
|
|
db = trie.NewDatabase(rawdb.NewMemoryDatabase())
|
|
accTrie, _ = trie.New(common.Hash{}, db)
|
|
entries entrySlice
|
|
storageTries = make(map[common.Hash]*trie.Trie)
|
|
storageEntries = make(map[common.Hash]entrySlice)
|
|
)
|
|
|
|
// Make a storage trie which we reuse for the whole lot
|
|
stTrie, stEntries := makeStorageTrie(slots, db)
|
|
stRoot := stTrie.Hash()
|
|
// Create n accounts in the trie
|
|
for i := uint64(1); i <= uint64(accounts); i++ {
|
|
key := key32(i)
|
|
codehash := emptyCode[:]
|
|
if code {
|
|
codehash = getACodeHash(i)
|
|
}
|
|
value, _ := rlp.EncodeToBytes(state.Account{
|
|
Nonce: i,
|
|
Balance: big.NewInt(int64(i)),
|
|
Root: stRoot,
|
|
CodeHash: codehash,
|
|
})
|
|
elem := &kv{key, value, false}
|
|
accTrie.Update(elem.k, elem.v)
|
|
entries = append(entries, elem)
|
|
// we reuse the same one for all accounts
|
|
storageTries[common.BytesToHash(key)] = stTrie
|
|
storageEntries[common.BytesToHash(key)] = stEntries
|
|
}
|
|
sort.Sort(entries)
|
|
stTrie.Commit(nil)
|
|
accTrie.Commit(nil)
|
|
return accTrie, entries, storageTries, storageEntries
|
|
}
|
|
|
|
// makeStorageTrie fills a storage trie with n items, returning the
|
|
// not-yet-committed trie and the sorted entries
|
|
func makeStorageTrie(n int, db *trie.Database) (*trie.Trie, entrySlice) {
|
|
trie, _ := trie.New(common.Hash{}, db)
|
|
var entries entrySlice
|
|
for i := uint64(1); i <= uint64(n); i++ {
|
|
// store 'i' at slot 'i'
|
|
slotValue := key32(i)
|
|
rlpSlotValue, _ := rlp.EncodeToBytes(common.TrimLeftZeroes(slotValue[:]))
|
|
|
|
slotKey := key32(i)
|
|
key := crypto.Keccak256Hash(slotKey[:])
|
|
|
|
elem := &kv{key[:], rlpSlotValue, false}
|
|
trie.Update(elem.k, elem.v)
|
|
entries = append(entries, elem)
|
|
}
|
|
sort.Sort(entries)
|
|
return trie, entries
|
|
}
|
|
|