-
Notifications
You must be signed in to change notification settings - Fork 1
/
tx_data.go
138 lines (120 loc) · 3.49 KB
/
tx_data.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
// Copyright 2021 Evmos Foundation
// This file is part of Evmos' Ethermint library.
//
// The Ethermint 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 Ethermint 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 Ethermint library. If not, see https://github.com/evmos/ethermint/blob/main/LICENSE
package types
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
)
var (
_ TxData = &LegacyTx{}
_ TxData = &AccessListTx{}
_ TxData = &DynamicFeeTx{}
)
// TxData implements the Ethereum transaction tx structure. It is used
// solely as intended in Ethereum abiding by the protocol.
type TxData interface {
// TODO: embed ethtypes.TxData. See https://github.com/ethereum/go-ethereum/issues/23154
TxType() byte
Copy() TxData
GetChainID() *big.Int
GetAccessList() ethtypes.AccessList
GetData() []byte
GetNonce() uint64
GetGas() uint64
GetGasPrice() *big.Int
GetGasTipCap() *big.Int
GetGasFeeCap() *big.Int
GetValue() *big.Int
GetTo() *common.Address
GetRawSignatureValues() (v, r, s *big.Int)
SetSignatureValues(chainID, v, r, s *big.Int)
AsEthereumData() ethtypes.TxData
Validate() error
// static fee
Fee() *big.Int
Cost() *big.Int
// effective gasPrice/fee/cost according to current base fee
EffectiveGasPrice(baseFee *big.Int) *big.Int
EffectiveFee(baseFee *big.Int) *big.Int
EffectiveCost(baseFee *big.Int) *big.Int
}
// NOTE: All non-protected transactions (i.e non EIP155 signed) will fail if the
// AllowUnprotectedTxs parameter is disabled.
func NewTxDataFromTx(tx *ethtypes.Transaction) (TxData, error) {
var txData TxData
var err error
switch tx.Type() {
case ethtypes.DynamicFeeTxType:
txData, err = newDynamicFeeTx(tx)
case ethtypes.AccessListTxType:
txData, err = newAccessListTx(tx)
default:
txData, err = newLegacyTx(tx)
}
if err != nil {
return nil, err
}
return txData, nil
}
// DeriveChainID derives the chain id from the given v parameter.
//
// CONTRACT: v value is either:
//
// - {0,1} + CHAIN_ID * 2 + 35, if EIP155 is used
// - {0,1} + 27, otherwise
//
// Ref: https://github.com/ethereum/EIPs/blob/master/EIPS/eip-155.md
func DeriveChainID(v *big.Int) *big.Int {
if v == nil || v.Sign() < 1 {
return nil
}
if v.BitLen() <= 64 {
v := v.Uint64()
if v == 27 || v == 28 {
return new(big.Int)
}
if v < 35 {
return nil
}
// V MUST be of the form {0,1} + CHAIN_ID * 2 + 35
return new(big.Int).SetUint64((v - 35) / 2)
}
v = new(big.Int).Sub(v, big.NewInt(35))
return v.Div(v, big.NewInt(2))
}
func rawSignatureValues(vBz, rBz, sBz []byte) (v, r, s *big.Int) {
if len(vBz) > 0 {
v = new(big.Int).SetBytes(vBz)
}
if len(rBz) > 0 {
r = new(big.Int).SetBytes(rBz)
}
if len(sBz) > 0 {
s = new(big.Int).SetBytes(sBz)
}
return v, r, s
}
func fee(gasPrice *big.Int, gas uint64) *big.Int {
gasLimit := new(big.Int).SetUint64(gas)
return new(big.Int).Mul(gasPrice, gasLimit)
}
func cost(fee, value *big.Int) *big.Int {
if value != nil {
return new(big.Int).Add(fee, value)
}
return fee
}