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-rw-r--r--core/tx_pool.go118
-rw-r--r--core/tx_pool_test.go135
-rw-r--r--light/txpool.go2
3 files changed, 167 insertions, 88 deletions
diff --git a/core/tx_pool.go b/core/tx_pool.go
index 86a2ed232..2f3cd1e93 100644
--- a/core/tx_pool.go
+++ b/core/tx_pool.go
@@ -35,16 +35,41 @@ import (
)
var (
- // Transaction Pool Errors
- ErrInvalidSender = errors.New("invalid sender")
- ErrNonce = errors.New("nonce too low")
- ErrUnderpriced = errors.New("transaction underpriced")
+ // ErrInvalidSender is returned if the transaction contains an invalid signature.
+ ErrInvalidSender = errors.New("invalid sender")
+
+ // ErrNonceTooLow is returned if the nonce of a transaction is lower than the
+ // one present in the local chain.
+ ErrNonceTooLow = errors.New("nonce too low")
+
+ // ErrUnderpriced is returned if a transaction's gas price is below the minimum
+ // configured for the transaction pool.
+ ErrUnderpriced = errors.New("transaction underpriced")
+
+ // ErrReplaceUnderpriced is returned if a transaction is attempted to be replaced
+ // with a different one without the required price bump.
ErrReplaceUnderpriced = errors.New("replacement transaction underpriced")
- ErrBalance = errors.New("insufficient balance")
- ErrInsufficientFunds = errors.New("insufficient funds for gas * price + value")
- ErrIntrinsicGas = errors.New("intrinsic gas too low")
- ErrGasLimit = errors.New("exceeds block gas limit")
- ErrNegativeValue = errors.New("negative value")
+
+ // ErrInsufficientFunds is returned if the total cost of executing a transaction
+ // is higher than the balance of the user's account.
+ ErrInsufficientFunds = errors.New("insufficient funds for gas * price + value")
+
+ // ErrIntrinsicGas is returned if the transaction is specified to use less gas
+ // than required to start the invocation.
+ ErrIntrinsicGas = errors.New("intrinsic gas too low")
+
+ // ErrGasLimit is returned if a transaction's requested gas limit exceeds the
+ // maximum allowance of the current block.
+ ErrGasLimit = errors.New("exceeds block gas limit")
+
+ // ErrNegativeValue is a sanity error to ensure noone is able to specify a
+ // transaction with a negative value.
+ ErrNegativeValue = errors.New("negative value")
+
+ // ErrOversizedData is returned if the input data of a transaction is greater
+ // 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")
)
var (
@@ -54,16 +79,16 @@ var (
var (
// Metrics for the pending pool
- pendingDiscardCounter = metrics.NewCounter("txpool/pending/discard")
- pendingReplaceCounter = metrics.NewCounter("txpool/pending/replace")
- pendingRLCounter = metrics.NewCounter("txpool/pending/ratelimit") // Dropped due to rate limiting
- pendingNofundsCounter = metrics.NewCounter("txpool/pending/nofunds") // Dropped due to out-of-funds
+ pendingDiscardCounter = metrics.NewCounter("txpool/pending/discard")
+ pendingReplaceCounter = metrics.NewCounter("txpool/pending/replace")
+ pendingRateLimitCounter = metrics.NewCounter("txpool/pending/ratelimit") // Dropped due to rate limiting
+ pendingNofundsCounter = metrics.NewCounter("txpool/pending/nofunds") // Dropped due to out-of-funds
// Metrics for the queued pool
- queuedDiscardCounter = metrics.NewCounter("txpool/queued/discard")
- queuedReplaceCounter = metrics.NewCounter("txpool/queued/replace")
- queuedRLCounter = metrics.NewCounter("txpool/queued/ratelimit") // Dropped due to rate limiting
- queuedNofundsCounter = metrics.NewCounter("txpool/queued/nofunds") // Dropped due to out-of-funds
+ queuedDiscardCounter = metrics.NewCounter("txpool/queued/discard")
+ queuedReplaceCounter = metrics.NewCounter("txpool/queued/replace")
+ queuedRateLimitCounter = metrics.NewCounter("txpool/queued/ratelimit") // Dropped due to rate limiting
+ queuedNofundsCounter = metrics.NewCounter("txpool/queued/nofunds") // Dropped due to out-of-funds
// General tx metrics
invalidTxCounter = metrics.NewCounter("txpool/invalid")
@@ -301,19 +326,6 @@ func (pool *TxPool) Stats() (int, int) {
return pool.stats()
}
-// validateInternals checks if the content in pool.all
-// is consistent with the numbers reported in pending and queued
-func (pool *TxPool) validateInternals() error {
- pool.mu.RLock()
- defer pool.mu.RUnlock()
- p, q := pool.stats()
- a := len(pool.all)
- if a != p+q {
- return fmt.Errorf("Pool.all size %d != %d pending + %d queued", a, p, q)
- }
- return nil
-}
-
// stats retrieves the current pool stats, namely the number of pending and the
// number of queued (non-executable) transactions.
func (pool *TxPool) stats() (int, int) {
@@ -387,7 +399,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction) error {
}
// Last but not least check for nonce errors
if currentState.GetNonce(from) > tx.Nonce() {
- return ErrNonce
+ return ErrNonceTooLow
}
// Check the transaction doesn't exceed the current
@@ -408,12 +420,15 @@ func (pool *TxPool) validateTx(tx *types.Transaction) error {
if currentState.GetBalance(from).Cmp(tx.Cost()) < 0 {
return ErrInsufficientFunds
}
-
intrGas := IntrinsicGas(tx.Data(), tx.To() == nil, pool.homestead)
if tx.Gas().Cmp(intrGas) < 0 {
return ErrIntrinsicGas
}
+ // Heuristic limit, reject transactions over 32KB to prevent DOS attacks
+ if tx.Size() > 32*1024 {
+ return ErrOversizedData
+ }
return nil
}
@@ -651,8 +666,9 @@ func (pool *TxPool) removeTx(hash common.Hash) {
}
// Update the account nonce if needed
if nonce := tx.Nonce(); pool.pendingState.GetNonce(addr) > nonce {
- pool.pendingState.SetNonce(addr, tx.Nonce())
+ pool.pendingState.SetNonce(addr, nonce)
}
+ return
}
}
// Transaction is in the future queue
@@ -709,10 +725,10 @@ func (pool *TxPool) promoteExecutables(state *state.StateDB, accounts []common.A
// Drop all transactions over the allowed limit
for _, tx := range list.Cap(int(pool.config.AccountQueue)) {
hash := tx.Hash()
- log.Trace("Removed cap-exceeding queued transaction", "hash", hash)
delete(pool.all, hash)
pool.priced.Removed()
- queuedRLCounter.Inc(1)
+ queuedRateLimitCounter.Inc(1)
+ log.Trace("Removed cap-exceeding queued transaction", "hash", hash)
}
queued += uint64(list.Len())
@@ -758,7 +774,18 @@ func (pool *TxPool) promoteExecutables(state *state.StateDB, accounts []common.A
for pending > pool.config.GlobalSlots && pool.pending[offenders[len(offenders)-2]].Len() > threshold {
for i := 0; i < len(offenders)-1; i++ {
list := pool.pending[offenders[i]]
- list.Cap(list.Len() - 1)
+ for _, tx := range list.Cap(list.Len() - 1) {
+ // Drop the transaction from the global pools too
+ hash := tx.Hash()
+ delete(pool.all, hash)
+ pool.priced.Removed()
+
+ // Update the account nonce to the dropped transaction
+ if nonce := tx.Nonce(); pool.pendingState.GetNonce(offenders[i]) > nonce {
+ pool.pendingState.SetNonce(offenders[i], nonce)
+ }
+ log.Trace("Removed fairness-exceeding pending transaction", "hash", hash)
+ }
pending--
}
}
@@ -769,12 +796,23 @@ func (pool *TxPool) promoteExecutables(state *state.StateDB, accounts []common.A
for pending > pool.config.GlobalSlots && uint64(pool.pending[offenders[len(offenders)-1]].Len()) > pool.config.AccountSlots {
for _, addr := range offenders {
list := pool.pending[addr]
- list.Cap(list.Len() - 1)
+ for _, tx := range list.Cap(list.Len() - 1) {
+ // Drop the transaction from the global pools too
+ hash := tx.Hash()
+ delete(pool.all, hash)
+ pool.priced.Removed()
+
+ // Update the account nonce to the dropped transaction
+ if nonce := tx.Nonce(); pool.pendingState.GetNonce(addr) > nonce {
+ pool.pendingState.SetNonce(addr, nonce)
+ }
+ log.Trace("Removed fairness-exceeding pending transaction", "hash", hash)
+ }
pending--
}
}
}
- pendingRLCounter.Inc(int64(pendingBeforeCap - pending))
+ pendingRateLimitCounter.Inc(int64(pendingBeforeCap - pending))
}
// If we've queued more transactions than the hard limit, drop oldest ones
if queued > pool.config.GlobalQueue {
@@ -798,7 +836,7 @@ func (pool *TxPool) promoteExecutables(state *state.StateDB, accounts []common.A
pool.removeTx(tx.Hash())
}
drop -= size
- queuedRLCounter.Inc(int64(size))
+ queuedRateLimitCounter.Inc(int64(size))
continue
}
// Otherwise drop only last few transactions
@@ -806,7 +844,7 @@ func (pool *TxPool) promoteExecutables(state *state.StateDB, accounts []common.A
for i := len(txs) - 1; i >= 0 && drop > 0; i-- {
pool.removeTx(txs[i].Hash())
drop--
- queuedRLCounter.Inc(1)
+ queuedRateLimitCounter.Inc(1)
}
}
}
diff --git a/core/tx_pool_test.go b/core/tx_pool_test.go
index d82a8ef5a..4e28522e9 100644
--- a/core/tx_pool_test.go
+++ b/core/tx_pool_test.go
@@ -18,6 +18,7 @@ package core
import (
"crypto/ecdsa"
+ "fmt"
"math/big"
"math/rand"
"testing"
@@ -52,6 +53,35 @@ func setupTxPool() (*TxPool, *ecdsa.PrivateKey) {
return newPool, key
}
+// validateTxPoolInternals checks various consistency invariants within the pool.
+func validateTxPoolInternals(pool *TxPool) error {
+ pool.mu.RLock()
+ defer pool.mu.RUnlock()
+
+ // Ensure the total transaction set is consistent with pending + queued
+ pending, queued := pool.stats()
+ if total := len(pool.all); total != pending+queued {
+ return fmt.Errorf("total transaction count %d != %d pending + %d queued", total, pending, queued)
+ }
+ if priced := pool.priced.items.Len() - pool.priced.stales; priced != pending+queued {
+ return fmt.Errorf("total priced transaction count %d != %d pending + %d queued", priced, pending, queued)
+ }
+ // Ensure the next nonce to assign is the correct one
+ for addr, txs := range pool.pending {
+ // Find the last transaction
+ var last uint64
+ for nonce, _ := range txs.txs.items {
+ if last < nonce {
+ last = nonce
+ }
+ }
+ if nonce := pool.pendingState.GetNonce(addr); nonce != last+1 {
+ return fmt.Errorf("pending nonce mismatch: have %v, want %v", nonce, last+1)
+ }
+ }
+ return nil
+}
+
func deriveSender(tx *types.Transaction) (common.Address, error) {
return types.Sender(types.HomesteadSigner{}, tx)
}
@@ -150,8 +180,8 @@ func TestInvalidTransactions(t *testing.T) {
currentState.SetNonce(from, 1)
currentState.AddBalance(from, big.NewInt(0xffffffffffffff))
tx = transaction(0, big.NewInt(100000), key)
- if err := pool.Add(tx); err != ErrNonce {
- t.Error("expected", ErrNonce)
+ if err := pool.Add(tx); err != ErrNonceTooLow {
+ t.Error("expected", ErrNonceTooLow)
}
tx = transaction(1, big.NewInt(100000), key)
@@ -218,20 +248,25 @@ func TestTransactionQueue(t *testing.T) {
func TestRemoveTx(t *testing.T) {
pool, key := setupTxPool()
- tx := transaction(0, big.NewInt(100), key)
- from, _ := deriveSender(tx)
+ addr := crypto.PubkeyToAddress(key.PublicKey)
currentState, _ := pool.currentState()
- currentState.AddBalance(from, big.NewInt(1))
+ currentState.AddBalance(addr, big.NewInt(1))
+
+ tx1 := transaction(0, big.NewInt(100), key)
+ tx2 := transaction(2, big.NewInt(100), key)
+
+ pool.promoteTx(addr, tx1.Hash(), tx1)
+ pool.enqueueTx(tx2.Hash(), tx2)
- pool.enqueueTx(tx.Hash(), tx)
- pool.promoteTx(from, tx.Hash(), tx)
if len(pool.queue) != 1 {
t.Error("expected queue to be 1, got", len(pool.queue))
}
if len(pool.pending) != 1 {
t.Error("expected pending to be 1, got", len(pool.pending))
}
- pool.Remove(tx.Hash())
+ pool.Remove(tx1.Hash())
+ pool.Remove(tx2.Hash())
+
if len(pool.queue) > 0 {
t.Error("expected queue to be 0, got", len(pool.queue))
}
@@ -404,10 +439,10 @@ func TestTransactionDropping(t *testing.T) {
)
pool.promoteTx(account, tx0.Hash(), tx0)
pool.promoteTx(account, tx1.Hash(), tx1)
- pool.promoteTx(account, tx1.Hash(), tx2)
+ pool.promoteTx(account, tx2.Hash(), tx2)
pool.enqueueTx(tx10.Hash(), tx10)
pool.enqueueTx(tx11.Hash(), tx11)
- pool.enqueueTx(tx11.Hash(), tx12)
+ pool.enqueueTx(tx12.Hash(), tx12)
// Check that pre and post validations leave the pool as is
if pool.pending[account].Len() != 3 {
@@ -416,8 +451,8 @@ func TestTransactionDropping(t *testing.T) {
if pool.queue[account].Len() != 3 {
t.Errorf("queued transaction mismatch: have %d, want %d", pool.queue[account].Len(), 3)
}
- if len(pool.all) != 4 {
- t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), 4)
+ if len(pool.all) != 6 {
+ t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), 6)
}
pool.resetState()
if pool.pending[account].Len() != 3 {
@@ -426,8 +461,8 @@ func TestTransactionDropping(t *testing.T) {
if pool.queue[account].Len() != 3 {
t.Errorf("queued transaction mismatch: have %d, want %d", pool.queue[account].Len(), 3)
}
- if len(pool.all) != 4 {
- t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), 4)
+ if len(pool.all) != 6 {
+ t.Errorf("total transaction mismatch: have %d, want %d", len(pool.all), 6)
}
// Reduce the balance of the account, and check that invalidated transactions are dropped
state.AddBalance(account, big.NewInt(-650))
@@ -719,12 +754,6 @@ func testTransactionLimitingEquivalency(t *testing.T, origin uint64) {
txns = append(txns, transaction(origin+i, big.NewInt(100000), key2))
}
pool2.AddBatch(txns)
- if err := pool2.validateInternals(); err != nil {
- t.Error(err)
- }
- if err := pool1.validateInternals(); err != nil {
- t.Error(err)
- }
// Ensure the batch optimization honors the same pool mechanics
if len(pool1.pending) != len(pool2.pending) {
@@ -736,6 +765,12 @@ func testTransactionLimitingEquivalency(t *testing.T, origin uint64) {
if len(pool1.all) != len(pool2.all) {
t.Errorf("total transaction count mismatch: one-by-one algo %d, batch algo %d", len(pool1.all), len(pool2.all))
}
+ if err := validateTxPoolInternals(pool1); err != nil {
+ t.Errorf("pool 1 internal state corrupted: %v", err)
+ }
+ if err := validateTxPoolInternals(pool2); err != nil {
+ t.Errorf("pool 2 internal state corrupted: %v", err)
+ }
}
// Tests that if the transaction count belonging to multiple accounts go above
@@ -775,9 +810,6 @@ func TestTransactionPendingGlobalLimiting(t *testing.T) {
// Import the batch and verify that limits have been enforced
pool.AddBatch(txs)
- if err := pool.validateInternals(); err != nil {
- t.Error(err)
- }
pending := 0
for _, list := range pool.pending {
pending += list.Len()
@@ -785,12 +817,18 @@ func TestTransactionPendingGlobalLimiting(t *testing.T) {
if pending > int(DefaultTxPoolConfig.GlobalSlots) {
t.Fatalf("total pending transactions overflow allowance: %d > %d", pending, DefaultTxPoolConfig.GlobalSlots)
}
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
+ }
}
// Tests that if transactions start being capped, transasctions are also removed from 'all'
func TestTransactionCapClearsFromAll(t *testing.T) {
// Reduce the queue limits to shorten test time
+ defer func(old uint64) { DefaultTxPoolConfig.AccountSlots = old }(DefaultTxPoolConfig.AccountSlots)
+ defer func(old uint64) { DefaultTxPoolConfig.AccountQueue = old }(DefaultTxPoolConfig.AccountQueue)
defer func(old uint64) { DefaultTxPoolConfig.GlobalSlots = old }(DefaultTxPoolConfig.GlobalSlots)
+
DefaultTxPoolConfig.AccountSlots = 2
DefaultTxPoolConfig.AccountQueue = 2
DefaultTxPoolConfig.GlobalSlots = 8
@@ -810,16 +848,13 @@ func TestTransactionCapClearsFromAll(t *testing.T) {
state.AddBalance(addr, big.NewInt(1000000))
txs := types.Transactions{}
- nonce := uint64(0)
for j := 0; j < int(DefaultTxPoolConfig.GlobalSlots)*2; j++ {
- tx := transaction(nonce, big.NewInt(100000), key)
- txs = append(txs, tx)
- nonce++
+ txs = append(txs, transaction(uint64(j), big.NewInt(100000), key))
}
// Import the batch and verify that limits have been enforced
pool.AddBatch(txs)
- if err := pool.validateInternals(); err != nil {
- t.Error(err)
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
}
}
@@ -860,15 +895,14 @@ func TestTransactionPendingMinimumAllowance(t *testing.T) {
// Import the batch and verify that limits have been enforced
pool.AddBatch(txs)
- if err := pool.validateInternals(); err != nil {
- t.Error(err)
- }
-
for addr, list := range pool.pending {
if list.Len() != int(DefaultTxPoolConfig.AccountSlots) {
t.Errorf("addr %x: total pending transactions mismatch: have %d, want %d", addr, list.Len(), DefaultTxPoolConfig.AccountSlots)
}
}
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
+ }
}
// Tests that setting the transaction pool gas price to a higher value correctly
@@ -909,10 +943,6 @@ func TestTransactionPoolRepricing(t *testing.T) {
// Import the batch and that both pending and queued transactions match up
pool.AddBatch(txs)
- if err := pool.validateInternals(); err != nil {
- t.Error(err)
- }
-
pending, queued := pool.stats()
if pending != 4 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 4)
@@ -920,6 +950,9 @@ func TestTransactionPoolRepricing(t *testing.T) {
if queued != 3 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 3)
}
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
+ }
// Reprice the pool and check that underpriced transactions get dropped
pool.SetGasPrice(big.NewInt(2))
@@ -930,6 +963,9 @@ func TestTransactionPoolRepricing(t *testing.T) {
if queued != 3 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 3)
}
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
+ }
// Check that we can't add the old transactions back
if err := pool.Add(pricedTransaction(1, big.NewInt(100000), big.NewInt(1), keys[0])); err != ErrUnderpriced {
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, ErrUnderpriced)
@@ -937,6 +973,9 @@ func TestTransactionPoolRepricing(t *testing.T) {
if err := pool.Add(pricedTransaction(2, big.NewInt(100000), big.NewInt(1), keys[1])); err != ErrUnderpriced {
t.Fatalf("adding underpriced queued transaction error mismatch: have %v, want %v", err, ErrUnderpriced)
}
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
+ }
// However we can add local underpriced transactions
tx := pricedTransaction(1, big.NewInt(100000), big.NewInt(1), keys[2])
@@ -947,10 +986,9 @@ func TestTransactionPoolRepricing(t *testing.T) {
if pending, _ = pool.stats(); pending != 3 {
t.Fatalf("pending transactions mismatched: have %d, want %d", pending, 3)
}
- if err := pool.validateInternals(); err != nil {
- t.Error(err)
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
}
-
}
// Tests that when the pool reaches its global transaction limit, underpriced
@@ -994,9 +1032,6 @@ func TestTransactionPoolUnderpricing(t *testing.T) {
// Import the batch and that both pending and queued transactions match up
pool.AddBatch(txs)
- if err := pool.validateInternals(); err != nil {
- t.Error(err)
- }
pending, queued := pool.stats()
if pending != 3 {
@@ -1005,6 +1040,9 @@ func TestTransactionPoolUnderpricing(t *testing.T) {
if queued != 1 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 1)
}
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
+ }
// Ensure that adding an underpriced transaction on block limit fails
if err := pool.Add(pricedTransaction(0, big.NewInt(100000), big.NewInt(1), keys[1])); err != ErrUnderpriced {
t.Fatalf("adding underpriced pending transaction error mismatch: have %v, want %v", err, ErrUnderpriced)
@@ -1026,6 +1064,9 @@ func TestTransactionPoolUnderpricing(t *testing.T) {
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
+ }
// Ensure that adding local transactions can push out even higher priced ones
tx := pricedTransaction(1, big.NewInt(100000), big.NewInt(0), keys[2])
@@ -1040,8 +1081,8 @@ func TestTransactionPoolUnderpricing(t *testing.T) {
if queued != 2 {
t.Fatalf("queued transactions mismatched: have %d, want %d", queued, 2)
}
- if err := pool.validateInternals(); err != nil {
- t.Error(err)
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
}
}
@@ -1104,8 +1145,8 @@ func TestTransactionReplacement(t *testing.T) {
if err := pool.Add(pricedTransaction(2, big.NewInt(100000), big.NewInt(threshold+1), key)); err != nil {
t.Fatalf("failed to replace original queued transaction: %v", err)
}
- if err := pool.validateInternals(); err != nil {
- t.Error(err)
+ if err := validateTxPoolInternals(pool); err != nil {
+ t.Fatalf("pool internal state corrupted: %v", err)
}
}
diff --git a/light/txpool.go b/light/txpool.go
index 446195806..7276874b8 100644
--- a/light/txpool.go
+++ b/light/txpool.go
@@ -360,7 +360,7 @@ func (pool *TxPool) validateTx(ctx context.Context, tx *types.Transaction) error
currentState := pool.currentState()
if n, err := currentState.GetNonce(ctx, from); err == nil {
if n > tx.Nonce() {
- return core.ErrNonce
+ return core.ErrNonceTooLow
}
} else {
return err
generated by cgit (git 2.34.1) at 2024-11-14 22:13:43 +0800