core/txpool: implement additional DoS defenses (#26648)

This adds two new rules to the transaction pool:

- A future transaction can not evict a pending transaction.
- A transaction can not overspend available funds of a sender.

---

Co-authored-by: dwn1998 <42262393+dwn1998@users.noreply.github.com>
Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Marius van der Wijden 2023-03-10 18:30:26 +01:00 committed by GitHub
parent 564db9a95f
commit 6cf2e921a7
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 341 additions and 25 deletions

@ -256,6 +256,7 @@ type list struct {
costcap *big.Int // Price of the highest costing transaction (reset only if exceeds balance)
gascap uint64 // Gas limit of the highest spending transaction (reset only if exceeds block limit)
totalcost *big.Int // Total cost of all transactions in the list
}
// newList create a new transaction list for maintaining nonce-indexable fast,
@ -265,6 +266,7 @@ func newList(strict bool) *list {
strict: strict,
txs: newSortedMap(),
costcap: new(big.Int),
totalcost: new(big.Int),
}
}
@ -302,7 +304,11 @@ func (l *list) Add(tx *types.Transaction, priceBump uint64) (bool, *types.Transa
if tx.GasFeeCapIntCmp(thresholdFeeCap) < 0 || tx.GasTipCapIntCmp(thresholdTip) < 0 {
return false, nil
}
// Old is being replaced, subtract old cost
l.subTotalCost([]*types.Transaction{old})
}
// Add new tx cost to totalcost
l.totalcost.Add(l.totalcost, tx.Cost())
// Otherwise overwrite the old transaction with the current one
l.txs.Put(tx)
if cost := tx.Cost(); l.costcap.Cmp(cost) < 0 {
@ -318,7 +324,9 @@ func (l *list) Add(tx *types.Transaction, priceBump uint64) (bool, *types.Transa
// provided threshold. Every removed transaction is returned for any post-removal
// maintenance.
func (l *list) Forward(threshold uint64) types.Transactions {
return l.txs.Forward(threshold)
txs := l.txs.Forward(threshold)
l.subTotalCost(txs)
return txs
}
// Filter removes all transactions from the list with a cost or gas limit higher
@ -357,6 +365,9 @@ func (l *list) Filter(costLimit *big.Int, gasLimit uint64) (types.Transactions,
}
invalids = l.txs.filter(func(tx *types.Transaction) bool { return tx.Nonce() > lowest })
}
// Reset total cost
l.subTotalCost(removed)
l.subTotalCost(invalids)
l.txs.reheap()
return removed, invalids
}
@ -364,7 +375,9 @@ func (l *list) Filter(costLimit *big.Int, gasLimit uint64) (types.Transactions,
// Cap places a hard limit on the number of items, returning all transactions
// exceeding that limit.
func (l *list) Cap(threshold int) types.Transactions {
return l.txs.Cap(threshold)
txs := l.txs.Cap(threshold)
l.subTotalCost(txs)
return txs
}
// Remove deletes a transaction from the maintained list, returning whether the
@ -376,9 +389,12 @@ func (l *list) Remove(tx *types.Transaction) (bool, types.Transactions) {
if removed := l.txs.Remove(nonce); !removed {
return false, nil
}
l.subTotalCost([]*types.Transaction{tx})
// In strict mode, filter out non-executable transactions
if l.strict {
return true, l.txs.Filter(func(tx *types.Transaction) bool { return tx.Nonce() > nonce })
txs := l.txs.Filter(func(tx *types.Transaction) bool { return tx.Nonce() > nonce })
l.subTotalCost(txs)
return true, txs
}
return true, nil
}
@ -391,7 +407,9 @@ func (l *list) Remove(tx *types.Transaction) (bool, types.Transactions) {
// prevent getting into and invalid state. This is not something that should ever
// happen but better to be self correcting than failing!
func (l *list) Ready(start uint64) types.Transactions {
return l.txs.Ready(start)
txs := l.txs.Ready(start)
l.subTotalCost(txs)
return txs
}
// Len returns the length of the transaction list.
@ -417,6 +435,14 @@ func (l *list) LastElement() *types.Transaction {
return l.txs.LastElement()
}
// subTotalCost subtracts the cost of the given transactions from the
// total cost of all transactions.
func (l *list) subTotalCost(txs []*types.Transaction) {
for _, tx := range txs {
l.totalcost.Sub(l.totalcost, tx.Cost())
}
}
// priceHeap is a heap.Interface implementation over transactions for retrieving
// price-sorted transactions to discard when the pool fills up. If baseFee is set
// then the heap is sorted based on the effective tip based on the given base fee.
@ -561,6 +587,7 @@ func (l *pricedList) underpricedFor(h *priceHeap, tx *types.Transaction) bool {
// Discard finds a number of most underpriced transactions, removes them from the
// priced list and returns them for further removal from the entire pool.
// If noPending is set to true, we will only consider the floating list
//
// Note local transaction won't be considered for eviction.
func (l *pricedList) Discard(slots int, force bool) (types.Transactions, bool) {

@ -17,6 +17,7 @@
package txpool
import (
"container/heap"
"errors"
"fmt"
"math"
@ -87,6 +88,14 @@ var (
// than some meaningful limit a user might use. This is not a consensus error
// making the transaction invalid, rather a DOS protection.
ErrOversizedData = errors.New("oversized data")
// ErrFutureReplacePending is returned if a future transaction replaces a pending
// transaction. Future transactions should only be able to replace other future transactions.
ErrFutureReplacePending = errors.New("future transaction tries to replace pending")
// ErrOverdraft is returned if a transaction would cause the senders balance to go negative
// thus invalidating a potential large number of transactions.
ErrOverdraft = errors.New("transaction would cause overdraft")
)
var (
@ -639,9 +648,25 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
}
// Transactor should have enough funds to cover the costs
// cost == V + GP * GL
if pool.currentState.GetBalance(from).Cmp(tx.Cost()) < 0 {
balance := pool.currentState.GetBalance(from)
if balance.Cmp(tx.Cost()) < 0 {
return core.ErrInsufficientFunds
}
// Verify that replacing transactions will not result in overdraft
list := pool.pending[from]
if list != nil { // Sender already has pending txs
sum := new(big.Int).Add(tx.Cost(), list.totalcost)
if repl := list.txs.Get(tx.Nonce()); repl != nil {
// Deduct the cost of a transaction replaced by this
sum.Sub(sum, repl.Cost())
}
if balance.Cmp(sum) < 0 {
log.Trace("Replacing transactions would overdraft", "sender", from, "balance", pool.currentState.GetBalance(from), "required", sum)
return ErrOverdraft
}
}
// Ensure the transaction has more gas than the basic tx fee.
intrGas, err := core.IntrinsicGas(tx.Data(), tx.AccessList(), tx.To() == nil, true, pool.istanbul, pool.shanghai)
if err != nil {
@ -678,6 +703,10 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (replaced bool, err e
invalidTxMeter.Mark(1)
return false, err
}
// already validated by this point
from, _ := types.Sender(pool.signer, tx)
// If the transaction pool is full, discard underpriced transactions
if uint64(pool.all.Slots()+numSlots(tx)) > pool.config.GlobalSlots+pool.config.GlobalQueue {
// If the new transaction is underpriced, don't accept it
@ -686,6 +715,7 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (replaced bool, err e
underpricedTxMeter.Mark(1)
return false, ErrUnderpriced
}
// We're about to replace a transaction. The reorg does a more thorough
// analysis of what to remove and how, but it runs async. We don't want to
// do too many replacements between reorg-runs, so we cap the number of
@ -706,17 +736,37 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (replaced bool, err e
overflowedTxMeter.Mark(1)
return false, ErrTxPoolOverflow
}
// Bump the counter of rejections-since-reorg
pool.changesSinceReorg += len(drop)
// If the new transaction is a future transaction it should never churn pending transactions
if pool.isFuture(from, tx) {
var replacesPending bool
for _, dropTx := range drop {
dropSender, _ := types.Sender(pool.signer, dropTx)
if list := pool.pending[dropSender]; list != nil && list.Overlaps(dropTx) {
replacesPending = true
break
}
}
// Add all transactions back to the priced queue
if replacesPending {
for _, dropTx := range drop {
heap.Push(&pool.priced.urgent, dropTx)
}
log.Trace("Discarding future transaction replacing pending tx", "hash", hash)
return false, ErrFutureReplacePending
}
}
// Kick out the underpriced remote transactions.
for _, tx := range drop {
log.Trace("Discarding freshly underpriced transaction", "hash", tx.Hash(), "gasTipCap", tx.GasTipCap(), "gasFeeCap", tx.GasFeeCap())
underpricedTxMeter.Mark(1)
pool.removeTx(tx.Hash(), false)
dropped := pool.removeTx(tx.Hash(), false)
pool.changesSinceReorg += dropped
}
}
// Try to replace an existing transaction in the pending pool
from, _ := types.Sender(pool.signer, tx) // already validated
if list := pool.pending[from]; list != nil && list.Overlaps(tx) {
// Nonce already pending, check if required price bump is met
inserted, old := list.Add(tx, pool.config.PriceBump)
@ -760,6 +810,20 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (replaced bool, err e
return replaced, nil
}
// isFuture reports whether the given transaction is immediately executable.
func (pool *TxPool) isFuture(from common.Address, tx *types.Transaction) bool {
list := pool.pending[from]
if list == nil {
return pool.pendingNonces.get(from) != tx.Nonce()
}
// Sender has pending transactions.
if old := list.txs.Get(tx.Nonce()); old != nil {
return false // It replaces a pending transaction.
}
// Not replacing, check if parent nonce exists in pending.
return list.txs.Get(tx.Nonce()-1) == nil
}
// enqueueTx inserts a new transaction into the non-executable transaction queue.
//
// Note, this method assumes the pool lock is held!
@ -996,11 +1060,12 @@ func (pool *TxPool) Has(hash common.Hash) bool {
// removeTx removes a single transaction from the queue, moving all subsequent
// transactions back to the future queue.
func (pool *TxPool) removeTx(hash common.Hash, outofbound bool) {
// Returns the number of transactions removed from the pending queue.
func (pool *TxPool) removeTx(hash common.Hash, outofbound bool) int {
// Fetch the transaction we wish to delete
tx := pool.all.Get(hash)
if tx == nil {
return
return 0
}
addr, _ := types.Sender(pool.signer, tx) // already validated during insertion
@ -1028,7 +1093,7 @@ func (pool *TxPool) removeTx(hash common.Hash, outofbound bool) {
pool.pendingNonces.setIfLower(addr, tx.Nonce())
// Reduce the pending counter
pendingGauge.Dec(int64(1 + len(invalids)))
return
return 1 + len(invalids)
}
}
// Transaction is in the future queue
@ -1042,6 +1107,7 @@ func (pool *TxPool) removeTx(hash common.Hash, outofbound bool) {
delete(pool.beats, addr)
}
}
return 0
}
// requestReset requests a pool reset to the new head block.

212
core/txpool/txpool2_test.go Normal file

@ -0,0 +1,212 @@
// Copyright 2023 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 txpool
import (
"crypto/ecdsa"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/event"
)
func pricedValuedTransaction(nonce uint64, value int64, gaslimit uint64, gasprice *big.Int, key *ecdsa.PrivateKey) *types.Transaction {
tx, _ := types.SignTx(types.NewTransaction(nonce, common.Address{}, big.NewInt(value), gaslimit, gasprice, nil), types.HomesteadSigner{}, key)
return tx
}
func count(t *testing.T, pool *TxPool) (pending int, queued int) {
t.Helper()
pending, queued = pool.stats()
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
return pending, queued
}
func fillPool(t *testing.T, pool *TxPool) {
t.Helper()
// Create a number of test accounts, fund them and make transactions
executableTxs := types.Transactions{}
nonExecutableTxs := types.Transactions{}
for i := 0; i < 384; i++ {
key, _ := crypto.GenerateKey()
pool.currentState.AddBalance(crypto.PubkeyToAddress(key.PublicKey), big.NewInt(10000000000))
// Add executable ones
for j := 0; j < int(pool.config.AccountSlots); j++ {
executableTxs = append(executableTxs, pricedTransaction(uint64(j), 100000, big.NewInt(300), key))
}
}
// Import the batch and verify that limits have been enforced
pool.AddRemotesSync(executableTxs)
pool.AddRemotesSync(nonExecutableTxs)
pending, queued := pool.Stats()
slots := pool.all.Slots()
// sanity-check that the test prerequisites are ok (pending full)
if have, want := pending, slots; have != want {
t.Fatalf("have %d, want %d", have, want)
}
if have, want := queued, 0; have != want {
t.Fatalf("have %d, want %d", have, want)
}
t.Logf("pool.config: GlobalSlots=%d, GlobalQueue=%d\n", pool.config.GlobalSlots, pool.config.GlobalQueue)
t.Logf("pending: %d queued: %d, all: %d\n", pending, queued, slots)
}
// Tests that if a batch high-priced of non-executables arrive, they do not kick out
// executable transactions
func TestTransactionFutureAttack(t *testing.T) {
t.Parallel()
// Create the pool to test the limit enforcement with
statedb, _ := state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := &testBlockChain{1000000, statedb, new(event.Feed)}
config := testTxPoolConfig
config.GlobalQueue = 100
config.GlobalSlots = 100
pool := NewTxPool(config, eip1559Config, blockchain)
defer pool.Stop()
fillPool(t, pool)
pending, _ := pool.Stats()
// Now, future transaction attack starts, let's add a bunch of expensive non-executables, and see if the pending-count drops
{
key, _ := crypto.GenerateKey()
pool.currentState.AddBalance(crypto.PubkeyToAddress(key.PublicKey), big.NewInt(100000000000))
futureTxs := types.Transactions{}
for j := 0; j < int(pool.config.GlobalSlots+pool.config.GlobalQueue); j++ {
futureTxs = append(futureTxs, pricedTransaction(1000+uint64(j), 100000, big.NewInt(500), key))
}
for i := 0; i < 5; i++ {
pool.AddRemotesSync(futureTxs)
newPending, newQueued := count(t, pool)
t.Logf("pending: %d queued: %d, all: %d\n", newPending, newQueued, pool.all.Slots())
}
}
newPending, _ := pool.Stats()
// Pending should not have been touched
if have, want := newPending, pending; have < want {
t.Errorf("wrong pending-count, have %d, want %d (GlobalSlots: %d)",
have, want, pool.config.GlobalSlots)
}
}
// Tests that if a batch high-priced of non-executables arrive, they do not kick out
// executable transactions
func TestTransactionFuture1559(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := &testBlockChain{1000000, statedb, new(event.Feed)}
pool := NewTxPool(testTxPoolConfig, eip1559Config, blockchain)
defer pool.Stop()
// Create a number of test accounts, fund them and make transactions
fillPool(t, pool)
pending, _ := pool.Stats()
// Now, future transaction attack starts, let's add a bunch of expensive non-executables, and see if the pending-count drops
{
key, _ := crypto.GenerateKey()
pool.currentState.AddBalance(crypto.PubkeyToAddress(key.PublicKey), big.NewInt(100000000000))
futureTxs := types.Transactions{}
for j := 0; j < int(pool.config.GlobalSlots+pool.config.GlobalQueue); j++ {
futureTxs = append(futureTxs, dynamicFeeTx(1000+uint64(j), 100000, big.NewInt(200), big.NewInt(101), key))
}
pool.AddRemotesSync(futureTxs)
}
newPending, _ := pool.Stats()
// Pending should not have been touched
if have, want := newPending, pending; have != want {
t.Errorf("Wrong pending-count, have %d, want %d (GlobalSlots: %d)",
have, want, pool.config.GlobalSlots)
}
}
// Tests that if a batch of balance-overdraft txs arrive, they do not kick out
// executable transactions
func TestTransactionZAttack(t *testing.T) {
t.Parallel()
// Create the pool to test the pricing enforcement with
statedb, _ := state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
blockchain := &testBlockChain{1000000, statedb, new(event.Feed)}
pool := NewTxPool(testTxPoolConfig, eip1559Config, blockchain)
defer pool.Stop()
// Create a number of test accounts, fund them and make transactions
fillPool(t, pool)
countInvalidPending := func() int {
t.Helper()
var ivpendingNum int
pendingtxs, _ := pool.Content()
for account, txs := range pendingtxs {
cur_balance := new(big.Int).Set(pool.currentState.GetBalance(account))
for _, tx := range txs {
if cur_balance.Cmp(tx.Value()) <= 0 {
ivpendingNum++
} else {
cur_balance.Sub(cur_balance, tx.Value())
}
}
}
if err := validatePoolInternals(pool); err != nil {
t.Fatalf("pool internal state corrupted: %v", err)
}
return ivpendingNum
}
ivPending := countInvalidPending()
t.Logf("invalid pending: %d\n", ivPending)
// Now, DETER-Z attack starts, let's add a bunch of expensive non-executables (from N accounts) along with balance-overdraft txs (from one account), and see if the pending-count drops
for j := 0; j < int(pool.config.GlobalQueue); j++ {
futureTxs := types.Transactions{}
key, _ := crypto.GenerateKey()
pool.currentState.AddBalance(crypto.PubkeyToAddress(key.PublicKey), big.NewInt(100000000000))
futureTxs = append(futureTxs, pricedTransaction(1000+uint64(j), 21000, big.NewInt(500), key))
pool.AddRemotesSync(futureTxs)
}
overDraftTxs := types.Transactions{}
{
key, _ := crypto.GenerateKey()
pool.currentState.AddBalance(crypto.PubkeyToAddress(key.PublicKey), big.NewInt(100000000000))
for j := 0; j < int(pool.config.GlobalSlots); j++ {
overDraftTxs = append(overDraftTxs, pricedValuedTransaction(uint64(j), 60000000000, 21000, big.NewInt(500), key))
}
}
pool.AddRemotesSync(overDraftTxs)
pool.AddRemotesSync(overDraftTxs)
pool.AddRemotesSync(overDraftTxs)
pool.AddRemotesSync(overDraftTxs)
pool.AddRemotesSync(overDraftTxs)
newPending, newQueued := count(t, pool)
newIvPending := countInvalidPending()
t.Logf("pool.all.Slots(): %d\n", pool.all.Slots())
t.Logf("pending: %d queued: %d, all: %d\n", newPending, newQueued, pool.all.Slots())
t.Logf("invalid pending: %d\n", newIvPending)
// Pending should not have been touched
if newIvPending != ivPending {
t.Errorf("Wrong invalid pending-count, have %d, want %d (GlobalSlots: %d, queued: %d)",
newIvPending, ivPending, pool.config.GlobalSlots, newQueued)
}
}

@ -158,6 +158,9 @@ func validatePoolInternals(pool *TxPool) error {
if nonce := pool.pendingNonces.get(addr); nonce != last+1 {
return fmt.Errorf("pending nonce mismatch: have %v, want %v", nonce, last+1)
}
if txs.totalcost.Cmp(common.Big0) < 0 {
return fmt.Errorf("totalcost went negative: %v", txs.totalcost)
}
}
return nil
}
@ -1105,7 +1108,7 @@ func TestPendingLimiting(t *testing.T) {
defer pool.Stop()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000))
testAddBalance(pool, account, big.NewInt(1000000000000))
// Keep track of transaction events to ensure all executables get announced
events := make(chan core.NewTxsEvent, testTxPoolConfig.AccountQueue+5)
@ -1584,7 +1587,7 @@ func TestRepricingKeepsLocals(t *testing.T) {
keys := make([]*ecdsa.PrivateKey, 3)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000*1000000))
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(100000*1000000))
}
// Create transaction (both pending and queued) with a linearly growing gasprice
for i := uint64(0); i < 500; i++ {
@ -1663,7 +1666,7 @@ func TestUnderpricing(t *testing.T) {
defer sub.Unsubscribe()
// Create a number of test accounts and fund them
keys := make([]*ecdsa.PrivateKey, 4)
keys := make([]*ecdsa.PrivateKey, 5)
for i := 0; i < len(keys); i++ {
keys[i], _ = crypto.GenerateKey()
testAddBalance(pool, crypto.PubkeyToAddress(keys[i].PublicKey), big.NewInt(1000000))
@ -1699,6 +1702,10 @@ func TestUnderpricing(t *testing.T) {
if err := pool.AddRemote(pricedTransaction(0, 100000, big.NewInt(1), keys[1])); err != ErrUnderpriced {
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, ErrUnderpriced)
}
// Replace a future transaction with a future transaction
if err := pool.AddRemote(pricedTransaction(1, 100000, big.NewInt(2), keys[1])); err != nil { // +K1:1 => -K1:1 => Pend K0:0, K0:1, K2:0; Que K1:1
t.Fatalf("failed to add well priced transaction: %v", err)
}
// Ensure that adding high priced transactions drops cheap ones, but not own
if err := pool.AddRemote(pricedTransaction(0, 100000, big.NewInt(3), keys[1])); err != nil { // +K1:0 => -K1:1 => Pend K0:0, K0:1, K1:0, K2:0; Que -
t.Fatalf("failed to add well priced transaction: %v", err)
@ -1709,6 +1716,10 @@ func TestUnderpricing(t *testing.T) {
if err := pool.AddRemote(pricedTransaction(3, 100000, big.NewInt(5), keys[1])); err != nil { // +K1:3 => -K0:1 => Pend K1:0, K2:0; Que K1:2 K1:3
t.Fatalf("failed to add well priced transaction: %v", err)
}
// Ensure that replacing a pending transaction with a future transaction fails
if err := pool.AddRemote(pricedTransaction(5, 100000, big.NewInt(6), keys[1])); err != ErrFutureReplacePending {
t.Fatalf("adding future replace transaction error mismatch: have %v, want %v", err, ErrFutureReplacePending)
}
pending, queued = pool.Stats()
if pending != 2 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 2)
@ -1716,7 +1727,7 @@ func TestUnderpricing(t *testing.T) {
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
if err := validateEvents(events, 1); err != nil {
if err := validateEvents(events, 2); err != nil {
t.Fatalf("additional event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
@ -1878,11 +1889,11 @@ func TestUnderpricingDynamicFee(t *testing.T) {
t.Fatalf("failed to add well priced transaction: %v", err)
}
tx = pricedTransaction(2, 100000, big.NewInt(3), keys[1])
tx = pricedTransaction(1, 100000, big.NewInt(3), keys[1])
if err := pool.AddRemote(tx); err != nil { // +K1:2, -K0:1 => Pend K0:0 K1:0, K2:0; Que K1:2
t.Fatalf("failed to add well priced transaction: %v", err)
}
tx = dynamicFeeTx(3, 100000, big.NewInt(4), big.NewInt(1), keys[1])
tx = dynamicFeeTx(2, 100000, big.NewInt(4), big.NewInt(1), keys[1])
if err := pool.AddRemote(tx); err != nil { // +K1:3, -K1:0 => Pend K0:0 K2:0; Que K1:2 K1:3
t.Fatalf("failed to add well priced transaction: %v", err)
}
@ -1893,7 +1904,7 @@ func TestUnderpricingDynamicFee(t *testing.T) {
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
if err := validateEvents(events, 1); err != nil {
if err := validateEvents(events, 2); err != nil {
t.Fatalf("additional event firing failed: %v", err)
}
if err := validatePoolInternals(pool); err != nil {
@ -2487,7 +2498,7 @@ func benchmarkBatchInsert(b *testing.B, size int, local bool) {
defer pool.Stop()
account := crypto.PubkeyToAddress(key.PublicKey)
testAddBalance(pool, account, big.NewInt(1000000))
testAddBalance(pool, account, big.NewInt(1000000000000000000))
batches := make([]types.Transactions, b.N)
for i := 0; i < b.N; i++ {