mirror of https://github.com/ethereum/go-ethereum
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
411 lines
11 KiB
411 lines
11 KiB
// Copyright 2021 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package les
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/binary"
|
|
"io"
|
|
"math/big"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/consensus/ethash"
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/core/txpool"
|
|
"github.com/ethereum/go-ethereum/core/txpool/legacypool"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/core/vm"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
l "github.com/ethereum/go-ethereum/les"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
"github.com/ethereum/go-ethereum/trie"
|
|
)
|
|
|
|
var (
|
|
bankKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
|
|
bankAddr = crypto.PubkeyToAddress(bankKey.PublicKey)
|
|
bankFunds = new(big.Int).Mul(big.NewInt(100), big.NewInt(params.Ether))
|
|
|
|
testChainLen = 256
|
|
testContractCode = common.Hex2Bytes("606060405260cc8060106000396000f360606040526000357c01000000000000000000000000000000000000000000000000000000009004806360cd2685146041578063c16431b914606b57603f565b005b6055600480803590602001909190505060a9565b6040518082815260200191505060405180910390f35b60886004808035906020019091908035906020019091905050608a565b005b80600060005083606481101560025790900160005b50819055505b5050565b6000600060005082606481101560025790900160005b5054905060c7565b91905056")
|
|
|
|
chain *core.BlockChain
|
|
addresses []common.Address
|
|
txHashes []common.Hash
|
|
|
|
chtTrie *trie.Trie
|
|
bloomTrie *trie.Trie
|
|
chtKeys [][]byte
|
|
bloomKeys [][]byte
|
|
)
|
|
|
|
func makechain() (bc *core.BlockChain, addresses []common.Address, txHashes []common.Hash) {
|
|
gspec := &core.Genesis{
|
|
Config: params.TestChainConfig,
|
|
Alloc: core.GenesisAlloc{bankAddr: {Balance: bankFunds}},
|
|
GasLimit: 100000000,
|
|
}
|
|
signer := types.HomesteadSigner{}
|
|
_, blocks, _ := core.GenerateChainWithGenesis(gspec, ethash.NewFaker(), testChainLen,
|
|
func(i int, gen *core.BlockGen) {
|
|
var (
|
|
tx *types.Transaction
|
|
addr common.Address
|
|
)
|
|
nonce := uint64(i)
|
|
if i%4 == 0 {
|
|
tx, _ = types.SignTx(types.NewContractCreation(nonce, big.NewInt(0), 200000, big.NewInt(params.GWei), testContractCode), signer, bankKey)
|
|
addr = crypto.CreateAddress(bankAddr, nonce)
|
|
} else {
|
|
addr = common.BigToAddress(big.NewInt(int64(i)))
|
|
tx, _ = types.SignTx(types.NewTransaction(nonce, addr, big.NewInt(10000), params.TxGas, big.NewInt(params.GWei), nil), signer, bankKey)
|
|
}
|
|
gen.AddTx(tx)
|
|
addresses = append(addresses, addr)
|
|
txHashes = append(txHashes, tx.Hash())
|
|
})
|
|
bc, _ = core.NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, ethash.NewFaker(), vm.Config{}, nil, nil)
|
|
if _, err := bc.InsertChain(blocks); err != nil {
|
|
panic(err)
|
|
}
|
|
return
|
|
}
|
|
|
|
func makeTries() (chtTrie *trie.Trie, bloomTrie *trie.Trie, chtKeys, bloomKeys [][]byte) {
|
|
chtTrie = trie.NewEmpty(trie.NewDatabase(rawdb.NewMemoryDatabase(), trie.HashDefaults))
|
|
bloomTrie = trie.NewEmpty(trie.NewDatabase(rawdb.NewMemoryDatabase(), trie.HashDefaults))
|
|
for i := 0; i < testChainLen; i++ {
|
|
// The element in CHT is <big-endian block number> -> <block hash>
|
|
key := make([]byte, 8)
|
|
binary.BigEndian.PutUint64(key, uint64(i+1))
|
|
chtTrie.MustUpdate(key, []byte{0x1, 0xf})
|
|
chtKeys = append(chtKeys, key)
|
|
|
|
// The element in Bloom trie is <2 byte bit index> + <big-endian block number> -> bloom
|
|
key2 := make([]byte, 10)
|
|
binary.BigEndian.PutUint64(key2[2:], uint64(i+1))
|
|
bloomTrie.MustUpdate(key2, []byte{0x2, 0xe})
|
|
bloomKeys = append(bloomKeys, key2)
|
|
}
|
|
return
|
|
}
|
|
|
|
func init() {
|
|
chain, addresses, txHashes = makechain()
|
|
chtTrie, bloomTrie, chtKeys, bloomKeys = makeTries()
|
|
}
|
|
|
|
type fuzzer struct {
|
|
chain *core.BlockChain
|
|
pool *txpool.TxPool
|
|
|
|
chainLen int
|
|
addresses []common.Address
|
|
txs []common.Hash
|
|
nonce uint64
|
|
|
|
chtKeys [][]byte
|
|
bloomKeys [][]byte
|
|
chtTrie *trie.Trie
|
|
bloomTrie *trie.Trie
|
|
|
|
input io.Reader
|
|
exhausted bool
|
|
}
|
|
|
|
func newFuzzer(input []byte) *fuzzer {
|
|
pool := legacypool.New(legacypool.DefaultConfig, chain)
|
|
txpool, _ := txpool.New(new(big.Int).SetUint64(legacypool.DefaultConfig.PriceLimit), chain, []txpool.SubPool{pool})
|
|
|
|
return &fuzzer{
|
|
chain: chain,
|
|
chainLen: testChainLen,
|
|
addresses: addresses,
|
|
txs: txHashes,
|
|
chtTrie: chtTrie,
|
|
bloomTrie: bloomTrie,
|
|
chtKeys: chtKeys,
|
|
bloomKeys: bloomKeys,
|
|
nonce: uint64(len(txHashes)),
|
|
pool: txpool,
|
|
input: bytes.NewReader(input),
|
|
}
|
|
}
|
|
|
|
func (f *fuzzer) read(size int) []byte {
|
|
out := make([]byte, size)
|
|
if _, err := f.input.Read(out); err != nil {
|
|
f.exhausted = true
|
|
}
|
|
return out
|
|
}
|
|
|
|
func (f *fuzzer) randomByte() byte {
|
|
d := f.read(1)
|
|
return d[0]
|
|
}
|
|
|
|
func (f *fuzzer) randomBool() bool {
|
|
d := f.read(1)
|
|
return d[0]&1 == 1
|
|
}
|
|
|
|
func (f *fuzzer) randomInt(max int) int {
|
|
if max == 0 {
|
|
return 0
|
|
}
|
|
if max <= 256 {
|
|
return int(f.randomByte()) % max
|
|
}
|
|
var a uint16
|
|
if err := binary.Read(f.input, binary.LittleEndian, &a); err != nil {
|
|
f.exhausted = true
|
|
}
|
|
return int(a % uint16(max))
|
|
}
|
|
|
|
func (f *fuzzer) randomX(max int) uint64 {
|
|
var a uint16
|
|
if err := binary.Read(f.input, binary.LittleEndian, &a); err != nil {
|
|
f.exhausted = true
|
|
}
|
|
if a < 0x8000 {
|
|
return uint64(a%uint16(max+1)) - 1
|
|
}
|
|
return (uint64(1)<<(a%64+1) - 1) & (uint64(a) * 343897772345826595)
|
|
}
|
|
|
|
func (f *fuzzer) randomBlockHash() common.Hash {
|
|
h := f.chain.GetCanonicalHash(uint64(f.randomInt(3 * f.chainLen)))
|
|
if h != (common.Hash{}) {
|
|
return h
|
|
}
|
|
return common.BytesToHash(f.read(common.HashLength))
|
|
}
|
|
|
|
func (f *fuzzer) randomAddress() []byte {
|
|
i := f.randomInt(3 * len(f.addresses))
|
|
if i < len(f.addresses) {
|
|
return f.addresses[i].Bytes()
|
|
}
|
|
return f.read(common.AddressLength)
|
|
}
|
|
|
|
func (f *fuzzer) randomCHTTrieKey() []byte {
|
|
i := f.randomInt(3 * len(f.chtKeys))
|
|
if i < len(f.chtKeys) {
|
|
return f.chtKeys[i]
|
|
}
|
|
return f.read(8)
|
|
}
|
|
|
|
func (f *fuzzer) randomBloomTrieKey() []byte {
|
|
i := f.randomInt(3 * len(f.bloomKeys))
|
|
if i < len(f.bloomKeys) {
|
|
return f.bloomKeys[i]
|
|
}
|
|
return f.read(10)
|
|
}
|
|
|
|
func (f *fuzzer) randomTxHash() common.Hash {
|
|
i := f.randomInt(3 * len(f.txs))
|
|
if i < len(f.txs) {
|
|
return f.txs[i]
|
|
}
|
|
return common.BytesToHash(f.read(common.HashLength))
|
|
}
|
|
|
|
func (f *fuzzer) BlockChain() *core.BlockChain {
|
|
return f.chain
|
|
}
|
|
|
|
func (f *fuzzer) TxPool() *txpool.TxPool {
|
|
return f.pool
|
|
}
|
|
|
|
func (f *fuzzer) ArchiveMode() bool {
|
|
return false
|
|
}
|
|
|
|
func (f *fuzzer) AddTxsSync() bool {
|
|
return false
|
|
}
|
|
|
|
func (f *fuzzer) GetHelperTrie(typ uint, index uint64) *trie.Trie {
|
|
if typ == 0 {
|
|
return f.chtTrie
|
|
} else if typ == 1 {
|
|
return f.bloomTrie
|
|
}
|
|
return nil
|
|
}
|
|
|
|
type dummyMsg struct {
|
|
data []byte
|
|
}
|
|
|
|
func (d dummyMsg) Decode(val interface{}) error {
|
|
return rlp.DecodeBytes(d.data, val)
|
|
}
|
|
|
|
func (f *fuzzer) doFuzz(msgCode uint64, packet interface{}) {
|
|
enc, err := rlp.EncodeToBytes(packet)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
version := f.randomInt(3) + 2 // [LES2, LES3, LES4]
|
|
peer, closeFn := l.NewFuzzerPeer(version)
|
|
defer closeFn()
|
|
fn, _, _, err := l.Les3[msgCode].Handle(dummyMsg{enc})
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
fn(f, peer, func() bool { return true })
|
|
}
|
|
|
|
func fuzz(input []byte) int {
|
|
// We expect some large inputs
|
|
if len(input) < 100 {
|
|
return -1
|
|
}
|
|
f := newFuzzer(input)
|
|
if f.exhausted {
|
|
return -1
|
|
}
|
|
for !f.exhausted {
|
|
switch f.randomInt(8) {
|
|
case 0:
|
|
req := &l.GetBlockHeadersPacket{
|
|
Query: l.GetBlockHeadersData{
|
|
Amount: f.randomX(l.MaxHeaderFetch + 1),
|
|
Skip: f.randomX(10),
|
|
Reverse: f.randomBool(),
|
|
},
|
|
}
|
|
if f.randomBool() {
|
|
req.Query.Origin.Hash = f.randomBlockHash()
|
|
} else {
|
|
req.Query.Origin.Number = uint64(f.randomInt(f.chainLen * 2))
|
|
}
|
|
f.doFuzz(l.GetBlockHeadersMsg, req)
|
|
|
|
case 1:
|
|
req := &l.GetBlockBodiesPacket{Hashes: make([]common.Hash, f.randomInt(l.MaxBodyFetch+1))}
|
|
for i := range req.Hashes {
|
|
req.Hashes[i] = f.randomBlockHash()
|
|
}
|
|
f.doFuzz(l.GetBlockBodiesMsg, req)
|
|
|
|
case 2:
|
|
req := &l.GetCodePacket{Reqs: make([]l.CodeReq, f.randomInt(l.MaxCodeFetch+1))}
|
|
for i := range req.Reqs {
|
|
req.Reqs[i] = l.CodeReq{
|
|
BHash: f.randomBlockHash(),
|
|
AccountAddress: f.randomAddress(),
|
|
}
|
|
}
|
|
f.doFuzz(l.GetCodeMsg, req)
|
|
|
|
case 3:
|
|
req := &l.GetReceiptsPacket{Hashes: make([]common.Hash, f.randomInt(l.MaxReceiptFetch+1))}
|
|
for i := range req.Hashes {
|
|
req.Hashes[i] = f.randomBlockHash()
|
|
}
|
|
f.doFuzz(l.GetReceiptsMsg, req)
|
|
|
|
case 4:
|
|
req := &l.GetProofsPacket{Reqs: make([]l.ProofReq, f.randomInt(l.MaxProofsFetch+1))}
|
|
for i := range req.Reqs {
|
|
if f.randomBool() {
|
|
req.Reqs[i] = l.ProofReq{
|
|
BHash: f.randomBlockHash(),
|
|
AccountAddress: f.randomAddress(),
|
|
Key: f.randomAddress(),
|
|
FromLevel: uint(f.randomX(3)),
|
|
}
|
|
} else {
|
|
req.Reqs[i] = l.ProofReq{
|
|
BHash: f.randomBlockHash(),
|
|
Key: f.randomAddress(),
|
|
FromLevel: uint(f.randomX(3)),
|
|
}
|
|
}
|
|
}
|
|
f.doFuzz(l.GetProofsV2Msg, req)
|
|
|
|
case 5:
|
|
req := &l.GetHelperTrieProofsPacket{Reqs: make([]l.HelperTrieReq, f.randomInt(l.MaxHelperTrieProofsFetch+1))}
|
|
for i := range req.Reqs {
|
|
switch f.randomInt(3) {
|
|
case 0:
|
|
// Canonical hash trie
|
|
req.Reqs[i] = l.HelperTrieReq{
|
|
Type: 0,
|
|
TrieIdx: f.randomX(3),
|
|
Key: f.randomCHTTrieKey(),
|
|
FromLevel: uint(f.randomX(3)),
|
|
AuxReq: uint(2),
|
|
}
|
|
case 1:
|
|
// Bloom trie
|
|
req.Reqs[i] = l.HelperTrieReq{
|
|
Type: 1,
|
|
TrieIdx: f.randomX(3),
|
|
Key: f.randomBloomTrieKey(),
|
|
FromLevel: uint(f.randomX(3)),
|
|
AuxReq: 0,
|
|
}
|
|
default:
|
|
// Random trie
|
|
req.Reqs[i] = l.HelperTrieReq{
|
|
Type: 2,
|
|
TrieIdx: f.randomX(3),
|
|
Key: f.randomCHTTrieKey(),
|
|
FromLevel: uint(f.randomX(3)),
|
|
AuxReq: 0,
|
|
}
|
|
}
|
|
}
|
|
f.doFuzz(l.GetHelperTrieProofsMsg, req)
|
|
|
|
case 6:
|
|
req := &l.SendTxPacket{Txs: make([]*types.Transaction, f.randomInt(l.MaxTxSend+1))}
|
|
signer := types.HomesteadSigner{}
|
|
for i := range req.Txs {
|
|
var nonce uint64
|
|
if f.randomBool() {
|
|
nonce = uint64(f.randomByte())
|
|
} else {
|
|
nonce = f.nonce
|
|
f.nonce += 1
|
|
}
|
|
req.Txs[i], _ = types.SignTx(types.NewTransaction(nonce, common.Address{}, big.NewInt(10000), params.TxGas, big.NewInt(1000000000*int64(f.randomByte())), nil), signer, bankKey)
|
|
}
|
|
f.doFuzz(l.SendTxV2Msg, req)
|
|
|
|
case 7:
|
|
req := &l.GetTxStatusPacket{Hashes: make([]common.Hash, f.randomInt(l.MaxTxStatus+1))}
|
|
for i := range req.Hashes {
|
|
req.Hashes[i] = f.randomTxHash()
|
|
}
|
|
f.doFuzz(l.GetTxStatusMsg, req)
|
|
}
|
|
}
|
|
return 0
|
|
}
|
|
|