From 5e38f7a664aa5401117f1e1705ec97476b19411e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= <peterke@gmail.com>
Date: Wed, 5 Jul 2017 17:06:05 +0300
Subject: [PATCH] cmd, core: add --txpool.nolocals to disable local price
 exemptions

---
 cmd/geth/main.go   | 1 +
 cmd/geth/usage.go  | 1 +
 cmd/utils/flags.go | 7 +++++++
 core/tx_pool.go    | 6 ++++--
 4 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index 7e0242d8f..607414bbb 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -66,6 +66,7 @@ var (
 		utils.EthashDatasetDirFlag,
 		utils.EthashDatasetsInMemoryFlag,
 		utils.EthashDatasetsOnDiskFlag,
+		utils.TxPoolNoLocalsFlag,
 		utils.TxPoolPriceLimitFlag,
 		utils.TxPoolPriceBumpFlag,
 		utils.TxPoolAccountSlotsFlag,
diff --git a/cmd/geth/usage.go b/cmd/geth/usage.go
index 022c8e899..275aad674 100644
--- a/cmd/geth/usage.go
+++ b/cmd/geth/usage.go
@@ -95,6 +95,7 @@ var AppHelpFlagGroups = []flagGroup{
 	{
 		Name: "TRANSACTION POOL",
 		Flags: []cli.Flag{
+			utils.TxPoolNoLocalsFlag,
 			utils.TxPoolPriceLimitFlag,
 			utils.TxPoolPriceBumpFlag,
 			utils.TxPoolAccountSlotsFlag,
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index b5a593ab6..0159364af 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -209,6 +209,10 @@ var (
 		Value: eth.DefaultConfig.EthashDatasetsOnDisk,
 	}
 	// Transaction pool settings
+	TxPoolNoLocalsFlag = cli.BoolFlag{
+		Name:  "txpool.nolocals",
+		Usage: "Disables price exemptions for locally submitted transactions",
+	}
 	TxPoolPriceLimitFlag = cli.Uint64Flag{
 		Name:  "txpool.pricelimit",
 		Usage: "Minimum gas price limit to enforce for acceptance into the pool",
@@ -831,6 +835,9 @@ func setGPO(ctx *cli.Context, cfg *gasprice.Config) {
 }
 
 func setTxPool(ctx *cli.Context, cfg *core.TxPoolConfig) {
+	if ctx.GlobalIsSet(TxPoolNoLocalsFlag.Name) {
+		cfg.NoLocals = ctx.GlobalBool(TxPoolNoLocalsFlag.Name)
+	}
 	if ctx.GlobalIsSet(TxPoolPriceLimitFlag.Name) {
 		cfg.PriceLimit = ctx.GlobalUint64(TxPoolPriceLimitFlag.Name)
 	}
diff --git a/core/tx_pool.go b/core/tx_pool.go
index a8018d74f..093d3c5fd 100644
--- a/core/tx_pool.go
+++ b/core/tx_pool.go
@@ -99,6 +99,8 @@ type stateFn func() (*state.StateDB, error)
 
 // TxPoolConfig are the configuration parameters of the transaction pool.
 type TxPoolConfig struct {
+	NoLocals bool // Whether local transaction handling should be disabled
+
 	PriceLimit uint64 // Minimum gas price to enforce for acceptance into the pool
 	PriceBump  uint64 // Minimum price bump percentage to replace an already existing transaction (nonce)
 
@@ -394,7 +396,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 	}
 	// Drop non-local transactions under our own minimal accepted gas price
 	local = local || pool.locals.contains(from) // account may be local even if the transaction arrived from the network
-	if !local && pool.gasPrice.Cmp(tx.GasPrice()) > 0 {
+	if (!local || pool.config.NoLocals) && pool.gasPrice.Cmp(tx.GasPrice()) > 0 {
 		return ErrUnderpriced
 	}
 	// Ensure the transaction adheres to nonce ordering
@@ -480,7 +482,7 @@ func (pool *TxPool) add(tx *types.Transaction, local bool) (bool, error) {
 	if err != nil {
 		return false, err
 	}
-	if local {
+	if local && !pool.config.NoLocals {
 		pool.locals.add(from)
 	}
 	log.Trace("Pooled new future transaction", "hash", hash, "from", from, "to", tx.To())