go-ethereum/eth/protocols/eth/handler_test.go
Felix Lange 0cba803fba
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eth/protocols/eth, eth/protocols/snap: delayed p2p message decoding (#33835)
This changes the p2p protocol handlers to delay message decoding. It's
the first part of a larger change that will delay decoding all the way
through message processing. For responses, we delay the decoding until
it is confirmed that the response matches an active request and does not
exceed its limits.

In order to make this work, all messages have been changed to use
rlp.RawList instead of a slice of the decoded item type. For block
bodies specifically, the decoding has been delayed all the way until
after verification of the response hash.

The role of p2p/tracker.Tracker changes significantly in this PR. The
Tracker's original purpose was to maintain metrics about requests and
responses in the peer-to-peer protocols. Each protocol maintained a
single global Tracker instance. As of this change, the Tracker is now
always active (regardless of metrics collection), and there is a
separate instance of it for each peer. Whenever a response arrives, it
is first verified that a request exists for it in the tracker. The
tracker is also the place where limits are kept.
2026-02-15 21:21:16 +08:00

763 lines
27 KiB
Go

// Copyright 2020 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 eth
import (
"bytes"
"crypto/sha256"
"math"
"math/big"
"math/rand"
"os"
"reflect"
"testing"
"time"
"github.com/davecgh/go-spew/spew"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/beacon"
"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/blobpool"
"github.com/ethereum/go-ethereum/core/txpool/legacypool"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/crypto/kzg4844"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/trie"
"github.com/holiman/uint256"
)
var (
// testKey is a private key to use for funding a tester account.
testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
// testAddr is the Ethereum address of the tester account.
testAddr = crypto.PubkeyToAddress(testKey.PublicKey)
)
func u64(val uint64) *uint64 { return &val }
// testBackend is a mock implementation of the live Ethereum message handler. Its
// purpose is to allow testing the request/reply workflows and wire serialization
// in the `eth` protocol without actually doing any data processing.
type testBackend struct {
db ethdb.Database
chain *core.BlockChain
txpool *txpool.TxPool
}
// newTestBackend creates an empty chain and wraps it into a mock backend.
func newTestBackend(blocks int) *testBackend {
return newTestBackendWithGenerator(blocks, false, false, nil)
}
// newTestBackendWithGenerator creates a chain with a number of explicitly defined blocks and
// wraps it into a mock backend.
func newTestBackendWithGenerator(blocks int, shanghai bool, cancun bool, generator func(int, *core.BlockGen)) *testBackend {
var (
// Create a database pre-initialize with a genesis block
db = rawdb.NewMemoryDatabase()
config = params.TestChainConfig
engine = beacon.New(ethash.NewFaker())
)
if shanghai {
config = &params.ChainConfig{
ChainID: big.NewInt(1),
HomesteadBlock: big.NewInt(0),
DAOForkBlock: nil,
DAOForkSupport: true,
EIP150Block: big.NewInt(0),
EIP155Block: big.NewInt(0),
EIP158Block: big.NewInt(0),
ByzantiumBlock: big.NewInt(0),
ConstantinopleBlock: big.NewInt(0),
PetersburgBlock: big.NewInt(0),
IstanbulBlock: big.NewInt(0),
MuirGlacierBlock: big.NewInt(0),
BerlinBlock: big.NewInt(0),
LondonBlock: big.NewInt(0),
ArrowGlacierBlock: big.NewInt(0),
GrayGlacierBlock: big.NewInt(0),
MergeNetsplitBlock: big.NewInt(0),
ShanghaiTime: u64(0),
TerminalTotalDifficulty: big.NewInt(0),
Ethash: new(params.EthashConfig),
}
}
if cancun {
config.CancunTime = u64(0)
config.BlobScheduleConfig = &params.BlobScheduleConfig{
Cancun: &params.BlobConfig{
Target: 3,
Max: 6,
UpdateFraction: params.DefaultCancunBlobConfig.UpdateFraction,
},
}
}
gspec := &core.Genesis{
Config: config,
Alloc: types.GenesisAlloc{testAddr: {Balance: big.NewInt(100_000_000_000_000_000)}},
Difficulty: common.Big0,
}
chain, _ := core.NewBlockChain(db, gspec, engine, nil)
_, bs, _ := core.GenerateChainWithGenesis(gspec, engine, blocks, generator)
if _, err := chain.InsertChain(bs); err != nil {
panic(err)
}
for _, block := range bs {
chain.TrieDB().Commit(block.Root(), false)
}
txconfig := legacypool.DefaultConfig
txconfig.Journal = "" // Don't litter the disk with test journals
storage, _ := os.MkdirTemp("", "blobpool-")
defer os.RemoveAll(storage)
blobPool := blobpool.New(blobpool.Config{Datadir: storage}, chain, nil)
legacyPool := legacypool.New(txconfig, chain)
txpool, _ := txpool.New(txconfig.PriceLimit, chain, []txpool.SubPool{legacyPool, blobPool})
return &testBackend{
db: db,
chain: chain,
txpool: txpool,
}
}
// close tears down the transaction pool and chain behind the mock backend.
func (b *testBackend) close() {
b.txpool.Close()
b.chain.Stop()
}
func (b *testBackend) Chain() *core.BlockChain { return b.chain }
func (b *testBackend) TxPool() TxPool { return b.txpool }
func (b *testBackend) RunPeer(peer *Peer, handler Handler) error {
// Normally the backend would do peer maintenance and handshakes. All that
// is omitted and we will just give control back to the handler.
return handler(peer)
}
func (b *testBackend) PeerInfo(enode.ID) interface{} { panic("not implemented") }
func (b *testBackend) AcceptTxs() bool {
return true
//panic("data processing tests should be done in the handler package")
}
func (b *testBackend) Handle(*Peer, Packet) error {
return nil
//panic("data processing tests should be done in the handler package")
}
// Tests that block headers can be retrieved from a remote chain based on user queries.
func TestGetBlockHeaders68(t *testing.T) { testGetBlockHeaders(t, ETH68) }
func testGetBlockHeaders(t *testing.T, protocol uint) {
t.Parallel()
backend := newTestBackend(maxHeadersServe + 15)
defer backend.close()
peer, _ := newTestPeer("peer", protocol, backend)
defer peer.close()
// Create a "random" unknown hash for testing
var unknown common.Hash
for i := range unknown {
unknown[i] = byte(i)
}
getHashes := func(from, limit uint64) (hashes []common.Hash) {
for i := uint64(0); i < limit; i++ {
hashes = append(hashes, backend.chain.GetCanonicalHash(from-1-i))
}
return hashes
}
// Create a batch of tests for various scenarios
limit := uint64(maxHeadersServe)
tests := []struct {
query *GetBlockHeadersRequest // The query to execute for header retrieval
expect []common.Hash // The hashes of the block whose headers are expected
}{
// A single random block should be retrievable by hash
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Hash: backend.chain.GetBlockByNumber(limit / 2).Hash()}, Amount: 1},
[]common.Hash{backend.chain.GetBlockByNumber(limit / 2).Hash()},
},
// A single random block should be retrievable by number
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: limit / 2}, Amount: 1},
[]common.Hash{backend.chain.GetBlockByNumber(limit / 2).Hash()},
},
// Multiple headers should be retrievable in both directions
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: limit / 2}, Amount: 3},
[]common.Hash{
backend.chain.GetBlockByNumber(limit / 2).Hash(),
backend.chain.GetBlockByNumber(limit/2 + 1).Hash(),
backend.chain.GetBlockByNumber(limit/2 + 2).Hash(),
},
}, {
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: limit / 2}, Amount: 3, Reverse: true},
[]common.Hash{
backend.chain.GetBlockByNumber(limit / 2).Hash(),
backend.chain.GetBlockByNumber(limit/2 - 1).Hash(),
backend.chain.GetBlockByNumber(limit/2 - 2).Hash(),
},
},
// Multiple headers with skip lists should be retrievable
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: limit / 2}, Skip: 3, Amount: 3},
[]common.Hash{
backend.chain.GetBlockByNumber(limit / 2).Hash(),
backend.chain.GetBlockByNumber(limit/2 + 4).Hash(),
backend.chain.GetBlockByNumber(limit/2 + 8).Hash(),
},
}, {
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: limit / 2}, Skip: 3, Amount: 3, Reverse: true},
[]common.Hash{
backend.chain.GetBlockByNumber(limit / 2).Hash(),
backend.chain.GetBlockByNumber(limit/2 - 4).Hash(),
backend.chain.GetBlockByNumber(limit/2 - 8).Hash(),
},
},
// The chain endpoints should be retrievable
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: 0}, Amount: 1},
[]common.Hash{backend.chain.GetBlockByNumber(0).Hash()},
},
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: backend.chain.CurrentBlock().Number.Uint64()}, Amount: 1},
[]common.Hash{backend.chain.CurrentBlock().Hash()},
},
{ // If the peer requests a bit into the future, we deliver what we have
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: backend.chain.CurrentBlock().Number.Uint64()}, Amount: 10},
[]common.Hash{backend.chain.CurrentBlock().Hash()},
},
// Ensure protocol limits are honored
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: backend.chain.CurrentBlock().Number.Uint64() - 1}, Amount: limit + 10, Reverse: true},
getHashes(backend.chain.CurrentBlock().Number.Uint64(), limit),
},
// Check that requesting more than available is handled gracefully
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: backend.chain.CurrentBlock().Number.Uint64() - 4}, Skip: 3, Amount: 3},
[]common.Hash{
backend.chain.GetBlockByNumber(backend.chain.CurrentBlock().Number.Uint64() - 4).Hash(),
backend.chain.GetBlockByNumber(backend.chain.CurrentBlock().Number.Uint64()).Hash(),
},
}, {
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: 4}, Skip: 3, Amount: 3, Reverse: true},
[]common.Hash{
backend.chain.GetBlockByNumber(4).Hash(),
backend.chain.GetBlockByNumber(0).Hash(),
},
},
// Check that requesting more than available is handled gracefully, even if mid skip
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: backend.chain.CurrentBlock().Number.Uint64() - 4}, Skip: 2, Amount: 3},
[]common.Hash{
backend.chain.GetBlockByNumber(backend.chain.CurrentBlock().Number.Uint64() - 4).Hash(),
backend.chain.GetBlockByNumber(backend.chain.CurrentBlock().Number.Uint64() - 1).Hash(),
},
}, {
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: 4}, Skip: 2, Amount: 3, Reverse: true},
[]common.Hash{
backend.chain.GetBlockByNumber(4).Hash(),
backend.chain.GetBlockByNumber(1).Hash(),
},
},
// Check a corner case where requesting more can iterate past the endpoints
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: 2}, Amount: 5, Reverse: true},
[]common.Hash{
backend.chain.GetBlockByNumber(2).Hash(),
backend.chain.GetBlockByNumber(1).Hash(),
backend.chain.GetBlockByNumber(0).Hash(),
},
},
// Check a corner case where skipping causes overflow with reverse=false
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: 1}, Amount: 2, Reverse: false, Skip: math.MaxUint64 - 1},
[]common.Hash{
backend.chain.GetBlockByNumber(1).Hash(),
},
},
// Check a corner case where skipping causes overflow with reverse=true
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: 1}, Amount: 2, Reverse: true, Skip: math.MaxUint64 - 1},
[]common.Hash{
backend.chain.GetBlockByNumber(1).Hash(),
},
},
// Check another corner case where skipping causes overflow with reverse=false
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: 1}, Amount: 2, Reverse: false, Skip: math.MaxUint64},
[]common.Hash{
backend.chain.GetBlockByNumber(1).Hash(),
},
},
// Check another corner case where skipping causes overflow with reverse=true
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: 1}, Amount: 2, Reverse: true, Skip: math.MaxUint64},
[]common.Hash{
backend.chain.GetBlockByNumber(1).Hash(),
},
},
// Check a corner case where skipping overflow loops back into the chain start
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Hash: backend.chain.GetBlockByNumber(3).Hash()}, Amount: 2, Reverse: false, Skip: math.MaxUint64 - 1},
[]common.Hash{
backend.chain.GetBlockByNumber(3).Hash(),
},
},
// Check a corner case where skipping overflow loops back to the same header
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Hash: backend.chain.GetBlockByNumber(1).Hash()}, Amount: 2, Reverse: false, Skip: math.MaxUint64},
[]common.Hash{
backend.chain.GetBlockByNumber(1).Hash(),
},
},
// Check that non existing headers aren't returned
{
&GetBlockHeadersRequest{Origin: HashOrNumber{Hash: unknown}, Amount: 1},
[]common.Hash{},
}, {
&GetBlockHeadersRequest{Origin: HashOrNumber{Number: backend.chain.CurrentBlock().Number.Uint64() + 1}, Amount: 1},
[]common.Hash{},
},
}
// Run each of the tests and verify the results against the chain
for i, tt := range tests {
// Collect the headers to expect in the response
var headers []*types.Header
for _, hash := range tt.expect {
headers = append(headers, backend.chain.GetBlockByHash(hash).Header())
}
// Send the hash request and verify the response
p2p.Send(peer.app, GetBlockHeadersMsg, &GetBlockHeadersPacket{
RequestId: 123,
GetBlockHeadersRequest: tt.query,
})
if err := p2p.ExpectMsg(peer.app, BlockHeadersMsg, &BlockHeadersPacket{
RequestId: 123,
List: encodeRL(headers),
}); err != nil {
t.Errorf("test %d: headers mismatch: %v", i, err)
}
// If the test used number origins, repeat with hashes as the too
if tt.query.Origin.Hash == (common.Hash{}) {
if origin := backend.chain.GetBlockByNumber(tt.query.Origin.Number); origin != nil {
tt.query.Origin.Hash, tt.query.Origin.Number = origin.Hash(), 0
p2p.Send(peer.app, GetBlockHeadersMsg, &GetBlockHeadersPacket{
RequestId: 456,
GetBlockHeadersRequest: tt.query,
})
expected := &BlockHeadersPacket{RequestId: 456, List: encodeRL(headers)}
if err := p2p.ExpectMsg(peer.app, BlockHeadersMsg, expected); err != nil {
t.Errorf("test %d by hash: headers mismatch: %v", i, err)
}
}
}
}
}
// Tests that block contents can be retrieved from a remote chain based on their hashes.
func TestGetBlockBodies68(t *testing.T) { testGetBlockBodies(t, ETH68) }
func testGetBlockBodies(t *testing.T, protocol uint) {
t.Parallel()
gen := func(n int, g *core.BlockGen) {
if n%2 == 0 {
w := &types.Withdrawal{
Address: common.Address{0xaa},
Amount: 42,
}
g.AddWithdrawal(w)
}
}
backend := newTestBackendWithGenerator(maxBodiesServe+15, true, false, gen)
defer backend.close()
peer, _ := newTestPeer("peer", protocol, backend)
defer peer.close()
// Create a batch of tests for various scenarios
limit := maxBodiesServe
tests := []struct {
random int // Number of blocks to fetch randomly from the chain
explicit []common.Hash // Explicitly requested blocks
available []bool // Availability of explicitly requested blocks
expected int // Total number of existing blocks to expect
}{
{1, nil, nil, 1}, // A single random block should be retrievable
{10, nil, nil, 10}, // Multiple random blocks should be retrievable
{limit, nil, nil, limit}, // The maximum possible blocks should be retrievable
{limit + 1, nil, nil, limit}, // No more than the possible block count should be returned
{0, []common.Hash{backend.chain.Genesis().Hash()}, []bool{true}, 1}, // The genesis block should be retrievable
{0, []common.Hash{backend.chain.CurrentBlock().Hash()}, []bool{true}, 1}, // The chains head block should be retrievable
{0, []common.Hash{{}}, []bool{false}, 0}, // A non existent block should not be returned
// Existing and non-existing blocks interleaved should not cause problems
{0, []common.Hash{
{},
backend.chain.GetBlockByNumber(1).Hash(),
{},
backend.chain.GetBlockByNumber(10).Hash(),
{},
backend.chain.GetBlockByNumber(100).Hash(),
{},
}, []bool{false, true, false, true, false, true, false}, 3},
}
// Run each of the tests and verify the results against the chain
for i, tt := range tests {
// Collect the hashes to request, and the response to expect
var (
hashes []common.Hash
bodies []BlockBody
seen = make(map[int64]bool)
)
for j := 0; j < tt.random; j++ {
for {
num := rand.Int63n(int64(backend.chain.CurrentBlock().Number.Uint64()))
if !seen[num] {
seen[num] = true
block := backend.chain.GetBlockByNumber(uint64(num))
hashes = append(hashes, block.Hash())
if len(bodies) < tt.expected {
bodies = append(bodies, encodeBody(block))
}
break
}
}
}
for j, hash := range tt.explicit {
hashes = append(hashes, hash)
if tt.available[j] && len(bodies) < tt.expected {
block := backend.chain.GetBlockByHash(hash)
bodies = append(bodies, encodeBody(block))
}
}
// Send the hash request and verify the response
p2p.Send(peer.app, GetBlockBodiesMsg, &GetBlockBodiesPacket{
RequestId: 123,
GetBlockBodiesRequest: hashes,
})
if err := p2p.ExpectMsg(peer.app, BlockBodiesMsg, &BlockBodiesPacket{
RequestId: 123,
List: encodeRL(bodies),
}); err != nil {
t.Fatalf("test %d: bodies mismatch: %v", i, err)
}
}
}
func encodeBody(b *types.Block) BlockBody {
body := BlockBody{
Transactions: encodeRL([]*types.Transaction(b.Transactions())),
Uncles: encodeRL(b.Uncles()),
}
if b.Withdrawals() != nil {
wd := encodeRL([]*types.Withdrawal(b.Withdrawals()))
body.Withdrawals = &wd
}
return body
}
func TestHashBody(t *testing.T) {
key, _ := crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
signer := types.NewCancunSigner(big.NewInt(1))
// create block 1
header := &types.Header{Number: big.NewInt(11)}
txs := []*types.Transaction{
types.MustSignNewTx(key, signer, &types.DynamicFeeTx{
ChainID: big.NewInt(1),
Nonce: 1,
Data: []byte("testing"),
}),
types.MustSignNewTx(key, signer, &types.LegacyTx{
Nonce: 2,
Data: []byte("testing"),
}),
}
uncles := []*types.Header{{Number: big.NewInt(10)}}
body1 := &types.Body{Transactions: txs, Uncles: uncles}
block1 := types.NewBlock(header, body1, nil, trie.NewStackTrie(nil))
// create block 2 (has withdrawals)
header2 := &types.Header{Number: big.NewInt(12)}
body2 := &types.Body{
Withdrawals: []*types.Withdrawal{{Index: 10}, {Index: 11}},
}
block2 := types.NewBlock(header2, body2, nil, trie.NewStackTrie(nil))
expectedHashes := BlockBodyHashes{
TransactionRoots: []common.Hash{block1.TxHash(), block2.TxHash()},
WithdrawalRoots: []common.Hash{common.Hash{}, *block2.Header().WithdrawalsHash},
UncleHashes: []common.Hash{block1.UncleHash(), block2.UncleHash()},
}
// compute hash like protocol handler does
protocolBodies := []BlockBody{encodeBody(block1), encodeBody(block2)}
hashes := hashBodyParts(protocolBodies)
if !reflect.DeepEqual(hashes, expectedHashes) {
t.Errorf("wrong hashes: %s", spew.Sdump(hashes))
t.Logf("expected: %s", spew.Sdump(expectedHashes))
}
}
// Tests that the transaction receipts can be retrieved based on hashes.
func TestGetBlockReceipts68(t *testing.T) { testGetBlockReceipts(t, ETH68) }
func testGetBlockReceipts(t *testing.T, protocol uint) {
t.Parallel()
// Define three accounts to simulate transactions with
acc1Key, _ := crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
acc2Key, _ := crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
acc1Addr := crypto.PubkeyToAddress(acc1Key.PublicKey)
acc2Addr := crypto.PubkeyToAddress(acc2Key.PublicKey)
signer := types.HomesteadSigner{}
// Create a chain generator with some simple transactions (blatantly stolen from @fjl/chain_markets_test)
generator := func(i int, block *core.BlockGen) {
switch i {
case 0:
// In block 1, the test bank sends account #1 some ether.
tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testAddr), acc1Addr, big.NewInt(10_000_000_000_000_000), params.TxGas, block.BaseFee(), nil), signer, testKey)
block.AddTx(tx)
case 1:
// In block 2, the test bank sends some more ether to account #1.
// acc1Addr passes it on to account #2.
tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testAddr), acc1Addr, big.NewInt(1_000_000_000_000_000), params.TxGas, block.BaseFee(), nil), signer, testKey)
tx2, _ := types.SignTx(types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1_000_000_000_000_000), params.TxGas, block.BaseFee(), nil), signer, acc1Key)
block.AddTx(tx1)
block.AddTx(tx2)
case 2:
// Block 3 is empty but was mined by account #2.
block.SetCoinbase(acc2Addr)
block.SetExtra([]byte("yeehaw"))
case 3:
// Block 4 includes blocks 2 and 3 as uncle headers (with modified extra data).
b2 := block.PrevBlock(1).Header()
b2.Extra = []byte("foo")
block.AddUncle(b2)
b3 := block.PrevBlock(2).Header()
b3.Extra = []byte("foo")
block.AddUncle(b3)
}
}
// Assemble the test environment
backend := newTestBackendWithGenerator(4, false, false, generator)
defer backend.close()
peer, _ := newTestPeer("peer", protocol, backend)
defer peer.close()
// Collect the hashes to request, and the response to expect
var (
hashes []common.Hash
receipts rlp.RawList[*ReceiptList68]
)
for i := uint64(0); i <= backend.chain.CurrentBlock().Number.Uint64(); i++ {
block := backend.chain.GetBlockByNumber(i)
hashes = append(hashes, block.Hash())
trs := backend.chain.GetReceiptsByHash(block.Hash())
receipts.Append(NewReceiptList68(trs))
}
// Send the hash request and verify the response
p2p.Send(peer.app, GetReceiptsMsg, &GetReceiptsPacket{
RequestId: 123,
GetReceiptsRequest: hashes,
})
if err := p2p.ExpectMsg(peer.app, ReceiptsMsg, &ReceiptsPacket[*ReceiptList68]{
RequestId: 123,
List: receipts,
}); err != nil {
t.Errorf("receipts mismatch: %v", err)
}
}
type decoder struct {
msg []byte
}
func (d decoder) Decode(val interface{}) error {
buffer := bytes.NewBuffer(d.msg)
s := rlp.NewStream(buffer, uint64(len(d.msg)))
return s.Decode(val)
}
func (d decoder) Time() time.Time {
return time.Now()
}
func setup() (*testBackend, *testPeer) {
// Generate some transactions etc.
acc1Key, _ := crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
acc2Key, _ := crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
acc1Addr := crypto.PubkeyToAddress(acc1Key.PublicKey)
acc2Addr := crypto.PubkeyToAddress(acc2Key.PublicKey)
signer := types.HomesteadSigner{}
gen := func(n int, block *core.BlockGen) {
if n%2 == 0 {
w := &types.Withdrawal{
Address: common.Address{0xaa},
Amount: 42,
}
block.AddWithdrawal(w)
}
switch n {
case 0:
// In block 1, the test bank sends account #1 some ether.
tx, _ := types.SignTx(types.NewTransaction(block.TxNonce(testAddr), acc1Addr, big.NewInt(10_000_000_000_000_000), params.TxGas, block.BaseFee(), nil), signer, testKey)
block.AddTx(tx)
case 1:
// In block 2, the test bank sends some more ether to account #1.
// acc1Addr passes it on to account #2.
tx1, _ := types.SignTx(types.NewTransaction(block.TxNonce(testAddr), acc1Addr, big.NewInt(1_000_000_000_000_000), params.TxGas, block.BaseFee(), nil), signer, testKey)
tx2, _ := types.SignTx(types.NewTransaction(block.TxNonce(acc1Addr), acc2Addr, big.NewInt(1_000_000_000_000_000), params.TxGas, block.BaseFee(), nil), signer, acc1Key)
block.AddTx(tx1)
block.AddTx(tx2)
case 2:
// Block 3 is empty but was mined by account #2.
block.SetCoinbase(acc2Addr)
block.SetExtra([]byte("yeehaw"))
}
}
backend := newTestBackendWithGenerator(maxBodiesServe+15, true, false, gen)
peer, _ := newTestPeer("peer", ETH68, backend)
// Discard all messages
go func() {
for {
msg, err := peer.app.ReadMsg()
if err == nil {
msg.Discard()
}
}
}()
return backend, peer
}
func FuzzEthProtocolHandlers(f *testing.F) {
handlers := eth69
backend, peer := setup()
f.Fuzz(func(t *testing.T, code byte, msg []byte) {
handler := handlers[uint64(code)%protocolLengths[ETH69]]
if handler == nil {
return
}
handler(backend, decoder{msg: msg}, peer.Peer)
})
}
func TestGetPooledTransaction(t *testing.T) {
t.Run("blobTx", func(t *testing.T) {
testGetPooledTransaction(t, true)
})
t.Run("legacyTx", func(t *testing.T) {
testGetPooledTransaction(t, false)
})
}
func testGetPooledTransaction(t *testing.T, blobTx bool) {
var (
emptyBlob = kzg4844.Blob{}
emptyBlobs = []kzg4844.Blob{emptyBlob}
emptyBlobCommit, _ = kzg4844.BlobToCommitment(&emptyBlob)
emptyBlobProof, _ = kzg4844.ComputeBlobProof(&emptyBlob, emptyBlobCommit)
emptyBlobHash = kzg4844.CalcBlobHashV1(sha256.New(), &emptyBlobCommit)
)
backend := newTestBackendWithGenerator(0, true, true, nil)
defer backend.close()
peer, _ := newTestPeer("peer", ETH68, backend)
defer peer.close()
var (
tx *types.Transaction
err error
signer = types.NewCancunSigner(params.TestChainConfig.ChainID)
)
if blobTx {
tx, err = types.SignNewTx(testKey, signer, &types.BlobTx{
ChainID: uint256.MustFromBig(params.TestChainConfig.ChainID),
Nonce: 0,
GasTipCap: uint256.NewInt(20_000_000_000),
GasFeeCap: uint256.NewInt(21_000_000_000),
Gas: 21000,
To: testAddr,
BlobHashes: []common.Hash{emptyBlobHash},
BlobFeeCap: uint256.MustFromBig(common.Big1),
Sidecar: types.NewBlobTxSidecar(types.BlobSidecarVersion0, emptyBlobs, []kzg4844.Commitment{emptyBlobCommit}, []kzg4844.Proof{emptyBlobProof}),
})
if err != nil {
t.Fatal(err)
}
} else {
tx, err = types.SignTx(
types.NewTransaction(0, testAddr, big.NewInt(10_000), params.TxGas, big.NewInt(1_000_000_000), nil),
signer,
testKey,
)
if err != nil {
t.Fatal(err)
}
}
errs := backend.txpool.Add([]*types.Transaction{tx}, true)
for _, err := range errs {
if err != nil {
t.Fatal(err)
}
}
// Send the hash request and verify the response
p2p.Send(peer.app, GetPooledTransactionsMsg, GetPooledTransactionsPacket{
RequestId: 123,
GetPooledTransactionsRequest: []common.Hash{tx.Hash()},
})
if err := p2p.ExpectMsg(peer.app, PooledTransactionsMsg, &PooledTransactionsPacket{
RequestId: 123,
List: encodeRL([]*types.Transaction{tx}),
}); err != nil {
t.Errorf("pooled transaction mismatch: %v", err)
}
}
func encodeRL[T any](slice []T) rlp.RawList[T] {
rl, err := rlp.EncodeToRawList(slice)
if err != nil {
panic(err)
}
return rl
}