From 5bc363275c79645e0383c26466e8c0f8994bacda Mon Sep 17 00:00:00 2001
From: Daniel Liu <139250065@qq.com>
Date: Wed, 11 Mar 2026 10:14:44 +0800
Subject: [PATCH] feat(core/txpool): respect nolocals-setting #28435 (#2128)

---
 core/txpool/legacypool/legacypool.go      |  3 ++
 core/txpool/legacypool/legacypool_test.go | 49 +++++++++++++++++++++++
 2 files changed, 52 insertions(+)

diff --git a/core/txpool/legacypool/legacypool.go b/core/txpool/legacypool/legacypool.go
index 81e409a0da..493caa7201 100644
--- a/core/txpool/legacypool/legacypool.go
+++ b/core/txpool/legacypool/legacypool.go
@@ -1145,6 +1145,9 @@ func (pool *LegacyPool) addRemoteSync(tx *types.Transaction) error {
 // If sync is set, the method will block until all internal maintenance related
 // to the add is finished. Only use this during tests for determinism!
 func (pool *LegacyPool) Add(txs []*types.Transaction, local, sync bool) []error {
+	// Do not treat as local if local transactions have been disabled
+	local = local && !pool.config.NoLocals
+
 	// Filter out known ones without obtaining the pool lock or recovering signatures
 	var (
 		errs = make([]error, len(txs))
diff --git a/core/txpool/legacypool/legacypool_test.go b/core/txpool/legacypool/legacypool_test.go
index 3d4a9002aa..f25edfd346 100644
--- a/core/txpool/legacypool/legacypool_test.go
+++ b/core/txpool/legacypool/legacypool_test.go
@@ -1604,6 +1604,55 @@ func TestRepricing(t *testing.T) {
 	}
 }
 
+func TestMinGasPriceEnforced(t *testing.T) {
+	t.Parallel()
+
+	// Create the pool to test the pricing enforcement with
+	statedb, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()))
+	blockchain := newTestBlockChain(eip1559Config, 10000000, statedb, new(event.Feed))
+
+	txPoolConfig := DefaultConfig
+	txPoolConfig.NoLocals = true
+	pool := New(txPoolConfig, blockchain)
+	pool.Init(txPoolConfig.PriceLimit, blockchain.CurrentBlock(), newReserver())
+	defer pool.Close()
+
+	key, _ := crypto.GenerateKey()
+	testAddBalance(pool, crypto.PubkeyToAddress(key.PublicKey), big.NewInt(1_000_000_000_000_000_000))
+
+	minGasPrice := common.GetMinGasPrice(blockchain.CurrentBlock().Number)
+	legacyPrice := new(big.Int).Add(minGasPrice, big.NewInt(1))
+	dynamicTip := new(big.Int).Add(minGasPrice, big.NewInt(1))
+	dynamicFeeCap := new(big.Int).Add(minGasPrice, big.NewInt(2))
+
+	tx := pricedTransaction(0, 100000, legacyPrice, key)
+	pool.SetGasTip(new(big.Int).Add(legacyPrice, big.NewInt(1)))
+
+	if err := pool.addLocal(tx); !errors.Is(err, txpool.ErrUnderpriced) {
+		t.Fatalf("Min tip not enforced")
+	}
+
+	if err := pool.Add([]*types.Transaction{tx}, true, false)[0]; !errors.Is(err, txpool.ErrUnderpriced) {
+		t.Fatalf("Min tip not enforced")
+	}
+
+	tx = dynamicFeeTx(0, 100000, dynamicFeeCap, dynamicTip, key)
+	pool.SetGasTip(new(big.Int).Add(dynamicTip, big.NewInt(1)))
+
+	if err := pool.addLocal(tx); !errors.Is(err, txpool.ErrUnderpriced) {
+		t.Fatalf("Min tip not enforced")
+	}
+
+	if err := pool.Add([]*types.Transaction{tx}, true, false)[0]; !errors.Is(err, txpool.ErrUnderpriced) {
+		t.Fatalf("Min tip not enforced")
+	}
+	// Make sure the tx is accepted if locals are enabled
+	pool.config.NoLocals = false
+	if err := pool.Add([]*types.Transaction{tx}, true, false)[0]; err != nil {
+		t.Fatalf("Min tip enforced with locals enabled, error: %v", err)
+	}
+}
+
 // Tests that setting the transaction pool gas price to a higher value correctly
 // discards everything cheaper (legacy & dynamic fee) than that and moves any
 // gapped transactions back from the pending pool to the queue.