core: Fixed gas price (#205)

* core/vm: update abi
* core/vm: add MinGasPrice to gov
* params: Add MinGasPrice to Config
* dex: SuggestPrice from Governance
* test: add minGasPrice to genesis.json
* core: check underpriced tx
* dex: verify with gas price

2 files changed, 15 insertions, 3 deletions

diff --git a/params/config.go b/params/config.go
index 937234c84..c9a648bd8 100644
--- a/params/config.go
+++ b/params/config.go
@@ -26,8 +26,8 @@ import (
 
 // Genesis hashes to enforce below configs on.
 var (
-	MainnetGenesisHash = common.HexToHash("0x6c59132f64eae33054c0390e4d8f8ea5f0df1642b3a084c94388c44fe5eff70d")
-	TestnetGenesisHash = common.HexToHash("0x31847855ec3c1ba9a03ac3311f283775a70d7b0422b525c335aa094e5b81c902")
+	MainnetGenesisHash = common.HexToHash("0xf80aae99a7c44bc54d7b0cc8a16645fa3ea65c01b180339f17b31a698b031271")
+	TestnetGenesisHash = common.HexToHash("0x7f704c8d0a773d0fcca231d40bf39495553886bf8800b4a06920786a802103e1")
 )
 
 // TrustedCheckpoints associates each known checkpoint with the genesis hash of
@@ -72,6 +72,7 @@ var (
 				new(big.Int).Mul(big.NewInt(1e18), big.NewInt(1e4)),
 				new(big.Int).Mul(big.NewInt(1e18), big.NewInt(1e5)),
 			},
+			MinGasPrice: new(big.Int).Mul(big.NewInt(1e9), big.NewInt(1)),
 		},
 	}
 
@@ -117,6 +118,7 @@ var (
 				new(big.Int).Mul(big.NewInt(1e18), big.NewInt(1e4)),
 				new(big.Int).Mul(big.NewInt(1e18), big.NewInt(1e5)),
 			},
+			MinGasPrice: new(big.Int).Mul(big.NewInt(1e9), big.NewInt(1)),
 		},
 	}
 
@@ -153,6 +155,7 @@ var (
 				new(big.Int).Mul(big.NewInt(1e18), big.NewInt(1e4)),
 				new(big.Int).Mul(big.NewInt(1e18), big.NewInt(1e5)),
 			},
+			MinGasPrice: new(big.Int).Mul(big.NewInt(1e9), big.NewInt(1)),
 		},
 	}
 
@@ -299,6 +302,7 @@ type DexconConfig struct {
 	RoundLength       uint64         `json:"roundLength"`
 	MinBlockInterval  uint64         `json:"minBlockInterval"`
 	FineValues        []*big.Int     `json:"fineValues"`
+	MinGasPrice       *big.Int       `json:"minGasPrice"`
 }
 
 type dexconConfigSpecMarshaling struct {
@@ -306,11 +310,12 @@ type dexconConfigSpecMarshaling struct {
 	NextHalvingSupply *math.HexOrDecimal256
 	LastHalvedAmount  *math.HexOrDecimal256
 	FineValues        []*math.HexOrDecimal256
+	MinGasPrice       *math.HexOrDecimal256
 }
 
 // String implements the stringer interface, returning the consensus engine details.
 func (d *DexconConfig) String() string {
-	return fmt.Sprintf("{GenesisCRSText: %v Owner: %v MinStake: %v LockupPeriod: %v MiningVelocity: %v NextHalvingSupply: %v LastHalvedAmount: %v BlockGasLimit: %v LambdaBA: %v LambdaDKG: %v NotarySetSize: %v DKGSetSize: %v RoundLength: %v MinBlockInterval: %v FineValues: %v}",
+	return fmt.Sprintf("{GenesisCRSText: %v Owner: %v MinStake: %v LockupPeriod: %v MiningVelocity: %v NextHalvingSupply: %v LastHalvedAmount: %v BlockGasLimit: %v LambdaBA: %v LambdaDKG: %v NotarySetSize: %v DKGSetSize: %v RoundLength: %v MinBlockInterval: %v FineValues: %v MinGasPrice: %v}",
 		d.GenesisCRSText,
 		d.Owner,
 		d.MinStake,
@@ -326,6 +331,7 @@ func (d *DexconConfig) String() string {
 		d.RoundLength,
 		d.MinBlockInterval,
 		d.FineValues,
+		d.MinGasPrice,
 	)
 }
 
diff --git a/params/gen_dexcon_config.go b/params/gen_dexcon_config.go
index 566ed9fcd..1afe11f56 100644
--- a/params/gen_dexcon_config.go
+++ b/params/gen_dexcon_config.go
@@ -30,6 +30,7 @@ func (d DexconConfig) MarshalJSON() ([]byte, error) {
 		RoundLength       uint64                  `json:"roundLength"`
 		MinBlockInterval  uint64                  `json:"minBlockInterval"`
 		FineValues        []*math.HexOrDecimal256 `json:"fineValues"`
+		MinGasPrice       *math.HexOrDecimal256   `json:"minGasPrice"`
 	}
 	var enc DexconConfig
 	enc.GenesisCRSText = d.GenesisCRSText
@@ -52,6 +53,7 @@ func (d DexconConfig) MarshalJSON() ([]byte, error) {
 			enc.FineValues[k] = (*math.HexOrDecimal256)(v)
 		}
 	}
+	enc.MinGasPrice = (*math.HexOrDecimal256)(d.MinGasPrice)
 	return json.Marshal(&enc)
 }
 
@@ -73,6 +75,7 @@ func (d *DexconConfig) UnmarshalJSON(input []byte) error {
 		RoundLength       *uint64                 `json:"roundLength"`
 		MinBlockInterval  *uint64                 `json:"minBlockInterval"`
 		FineValues        []*math.HexOrDecimal256 `json:"fineValues"`
+		MinGasPrice       *math.HexOrDecimal256   `json:"minGasPrice"`
 	}
 	var dec DexconConfig
 	if err := json.Unmarshal(input, &dec); err != nil {
@@ -126,5 +129,8 @@ func (d *DexconConfig) UnmarshalJSON(input []byte) error {
 			d.FineValues[k] = (*big.Int)(v)
 		}
 	}
+	if dec.MinGasPrice != nil {
+		d.MinGasPrice = (*big.Int)(dec.MinGasPrice)
+	}
 	return nil
 }