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541 lines
22 KiB
541 lines
22 KiB
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package params
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import (
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"encoding/binary"
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"fmt"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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)
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// Genesis hashes to enforce below configs on.
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var (
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MainnetGenesisHash = common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3")
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TestnetGenesisHash = common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d")
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RinkebyGenesisHash = common.HexToHash("0x6341fd3daf94b748c72ced5a5b26028f2474f5f00d824504e4fa37a75767e177")
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GoerliGenesisHash = common.HexToHash("0xbf7e331f7f7c1dd2e05159666b3bf8bc7a8a3a9eb1d518969eab529dd9b88c1a")
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)
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// TrustedCheckpoints associates each known checkpoint with the genesis hash of
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// the chain it belongs to.
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var TrustedCheckpoints = map[common.Hash]*TrustedCheckpoint{
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MainnetGenesisHash: MainnetTrustedCheckpoint,
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TestnetGenesisHash: TestnetTrustedCheckpoint,
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RinkebyGenesisHash: RinkebyTrustedCheckpoint,
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GoerliGenesisHash: GoerliTrustedCheckpoint,
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}
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// CheckpointOracles associates each known checkpoint oracles with the genesis hash of
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// the chain it belongs to.
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var CheckpointOracles = map[common.Hash]*CheckpointOracleConfig{
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MainnetGenesisHash: MainnetCheckpointOracle,
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TestnetGenesisHash: TestnetCheckpointOracle,
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RinkebyGenesisHash: RinkebyCheckpointOracle,
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GoerliGenesisHash: GoerliCheckpointOracle,
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}
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var (
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// MainnetChainConfig is the chain parameters to run a node on the main network.
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MainnetChainConfig = &ChainConfig{
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ChainID: big.NewInt(1),
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HomesteadBlock: big.NewInt(1150000),
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DAOForkBlock: big.NewInt(1920000),
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DAOForkSupport: true,
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EIP150Block: big.NewInt(2463000),
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EIP150Hash: common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
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EIP155Block: big.NewInt(2675000),
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EIP158Block: big.NewInt(2675000),
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ByzantiumBlock: big.NewInt(4370000),
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ConstantinopleBlock: big.NewInt(7280000),
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PetersburgBlock: big.NewInt(7280000),
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IstanbulBlock: nil,
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Ethash: new(EthashConfig),
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}
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// MainnetTrustedCheckpoint contains the light client trusted checkpoint for the main network.
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MainnetTrustedCheckpoint = &TrustedCheckpoint{
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SectionIndex: 249,
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SectionHead: common.HexToHash("0x0d656b0cc0e9901c9dfc6b6944962ad10286969b5e65cff2b21228ffa3201b45"),
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CHTRoot: common.HexToHash("0xe97cdc4a54f6bcae09acd8f7d9b2fecc6baa58cc30e12fc1c848d4b736060389"),
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BloomRoot: common.HexToHash("0xe028d4fe19fccd10c845b609dbed0778217298c352e3f588aa1351e9e7b836ca"),
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}
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// MainnetCheckpointOracle contains a set of configs for the main network oracle.
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MainnetCheckpointOracle = &CheckpointOracleConfig{
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Address: common.HexToAddress("0x9a9070028361F7AAbeB3f2F2Dc07F82C4a98A02a"),
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Signers: []common.Address{
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common.HexToAddress("0x1b2C260efc720BE89101890E4Db589b44E950527"), // Peter
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common.HexToAddress("0x78d1aD571A1A09D60D9BBf25894b44e4C8859595"), // Martin
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common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt
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common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary
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common.HexToAddress("0x0DF8fa387C602AE62559cC4aFa4972A7045d6707"), // Guillaume
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},
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Threshold: 2,
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}
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// TestnetChainConfig contains the chain parameters to run a node on the Ropsten test network.
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TestnetChainConfig = &ChainConfig{
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ChainID: big.NewInt(3),
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HomesteadBlock: big.NewInt(0),
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DAOForkBlock: nil,
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DAOForkSupport: true,
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EIP150Block: big.NewInt(0),
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EIP150Hash: common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d"),
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EIP155Block: big.NewInt(10),
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EIP158Block: big.NewInt(10),
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ByzantiumBlock: big.NewInt(1700000),
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ConstantinopleBlock: big.NewInt(4230000),
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PetersburgBlock: big.NewInt(4939394),
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IstanbulBlock: nil,
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Ethash: new(EthashConfig),
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}
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// TestnetTrustedCheckpoint contains the light client trusted checkpoint for the Ropsten test network.
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TestnetTrustedCheckpoint = &TrustedCheckpoint{
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SectionIndex: 183,
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SectionHead: common.HexToHash("0xe1eb8c31b8d370db4562a5246ffd220d44540581d2365b96615293e4795184fd"),
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CHTRoot: common.HexToHash("0x1e5902d1680f543ac23ebae2663a3d45daad0de5329c8921ebe295e602afe81e"),
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BloomRoot: common.HexToHash("0xae53ddf3574792a7fad53b3ceb03867facc4a67d25bb6dae9ddd0bd53a0ad027"),
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}
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// TestnetCheckpointOracle contains a set of configs for the Ropsten test network oracle.
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TestnetCheckpointOracle = &CheckpointOracleConfig{
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Address: common.HexToAddress("0xEF79475013f154E6A65b54cB2742867791bf0B84"),
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Signers: []common.Address{
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common.HexToAddress("0x32162F3581E88a5f62e8A61892B42C46E2c18f7b"), // Peter
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common.HexToAddress("0x78d1aD571A1A09D60D9BBf25894b44e4C8859595"), // Martin
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common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt
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common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary
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common.HexToAddress("0x0DF8fa387C602AE62559cC4aFa4972A7045d6707"), // Guillaume
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},
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Threshold: 2,
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}
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// RinkebyChainConfig contains the chain parameters to run a node on the Rinkeby test network.
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RinkebyChainConfig = &ChainConfig{
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ChainID: big.NewInt(4),
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HomesteadBlock: big.NewInt(1),
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DAOForkBlock: nil,
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DAOForkSupport: true,
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EIP150Block: big.NewInt(2),
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EIP150Hash: common.HexToHash("0x9b095b36c15eaf13044373aef8ee0bd3a382a5abb92e402afa44b8249c3a90e9"),
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EIP155Block: big.NewInt(3),
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EIP158Block: big.NewInt(3),
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ByzantiumBlock: big.NewInt(1035301),
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ConstantinopleBlock: big.NewInt(3660663),
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PetersburgBlock: big.NewInt(4321234),
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IstanbulBlock: nil,
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Clique: &CliqueConfig{
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Period: 15,
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Epoch: 30000,
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},
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}
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// RinkebyTrustedCheckpoint contains the light client trusted checkpoint for the Rinkeby test network.
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RinkebyTrustedCheckpoint = &TrustedCheckpoint{
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SectionIndex: 144,
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SectionHead: common.HexToHash("0x38cc2e339462919179e5ca9f88408ee481eb1750a143bdbf4f33c00f2064935a"),
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CHTRoot: common.HexToHash("0x889c6b1e4d9e312d3145d104e7f58f52d1854e8dafb2f0b90e0c1d8b71bce97b"),
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BloomRoot: common.HexToHash("0xb7ae54ba64f359b78dfc3e8a61fc44e68758568e7f54b849fa474caa45efa9b9"),
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}
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// RinkebyCheckpointOracle contains a set of configs for the Rinkeby test network oracle.
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RinkebyCheckpointOracle = &CheckpointOracleConfig{
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Address: common.HexToAddress("0xebe8eFA441B9302A0d7eaECc277c09d20D684540"),
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Signers: []common.Address{
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common.HexToAddress("0xd9c9cd5f6779558b6e0ed4e6acf6b1947e7fa1f3"), // Peter
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common.HexToAddress("0x78d1aD571A1A09D60D9BBf25894b44e4C8859595"), // Martin
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common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt
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common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary
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},
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Threshold: 2,
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}
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// GoerliChainConfig contains the chain parameters to run a node on the Görli test network.
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GoerliChainConfig = &ChainConfig{
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ChainID: big.NewInt(5),
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HomesteadBlock: big.NewInt(0),
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DAOForkBlock: nil,
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DAOForkSupport: true,
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EIP150Block: big.NewInt(0),
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EIP155Block: big.NewInt(0),
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EIP158Block: big.NewInt(0),
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ByzantiumBlock: big.NewInt(0),
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ConstantinopleBlock: big.NewInt(0),
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PetersburgBlock: big.NewInt(0),
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IstanbulBlock: nil,
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Clique: &CliqueConfig{
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Period: 15,
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Epoch: 30000,
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},
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}
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// GoerliTrustedCheckpoint contains the light client trusted checkpoint for the Görli test network.
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GoerliTrustedCheckpoint = &TrustedCheckpoint{
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SectionIndex: 28,
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SectionHead: common.HexToHash("0x5baedfb5006507906cce3b6487080c810aa79806b0388c3671ee6d56694a591e"),
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CHTRoot: common.HexToHash("0x89ff7aabc7a0a13c25aeb1e3e333063acf80473a571e465d7c884b183a67e717"),
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BloomRoot: common.HexToHash("0x56eccfd9171d2df3e62ffd61c442dfb69b603b1f28fbb267c28b3444fdeae6c6"),
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}
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// GoerliCheckpointOracle contains a set of configs for the Goerli test network oracle.
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GoerliCheckpointOracle = &CheckpointOracleConfig{
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Address: common.HexToAddress("0x18CA0E045F0D772a851BC7e48357Bcaab0a0795D"),
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Signers: []common.Address{
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common.HexToAddress("0x4769bcaD07e3b938B7f43EB7D278Bc7Cb9efFb38"), // Peter
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common.HexToAddress("0x78d1aD571A1A09D60D9BBf25894b44e4C8859595"), // Martin
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common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt
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common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary
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common.HexToAddress("0x0DF8fa387C602AE62559cC4aFa4972A7045d6707"), // Guillaume
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},
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Threshold: 2,
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}
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// AllEthashProtocolChanges contains every protocol change (EIPs) introduced
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// and accepted by the Ethereum core developers into the Ethash consensus.
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//
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// This configuration is intentionally not using keyed fields to force anyone
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// adding flags to the config to also have to set these fields.
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AllEthashProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil}
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// AllCliqueProtocolChanges contains every protocol change (EIPs) introduced
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// and accepted by the Ethereum core developers into the Clique consensus.
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//
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// This configuration is intentionally not using keyed fields to force anyone
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// adding flags to the config to also have to set these fields.
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AllCliqueProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}}
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TestChainConfig = &ChainConfig{big.NewInt(1), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil}
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TestRules = TestChainConfig.Rules(new(big.Int))
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)
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// TrustedCheckpoint represents a set of post-processed trie roots (CHT and
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// BloomTrie) associated with the appropriate section index and head hash. It is
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// used to start light syncing from this checkpoint and avoid downloading the
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// entire header chain while still being able to securely access old headers/logs.
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type TrustedCheckpoint struct {
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SectionIndex uint64 `json:"sectionIndex"`
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SectionHead common.Hash `json:"sectionHead"`
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CHTRoot common.Hash `json:"chtRoot"`
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BloomRoot common.Hash `json:"bloomRoot"`
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}
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// HashEqual returns an indicator comparing the itself hash with given one.
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func (c *TrustedCheckpoint) HashEqual(hash common.Hash) bool {
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if c.Empty() {
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return hash == common.Hash{}
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}
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return c.Hash() == hash
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}
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// Hash returns the hash of checkpoint's four key fields(index, sectionHead, chtRoot and bloomTrieRoot).
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func (c *TrustedCheckpoint) Hash() common.Hash {
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buf := make([]byte, 8+3*common.HashLength)
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binary.BigEndian.PutUint64(buf, c.SectionIndex)
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copy(buf[8:], c.SectionHead.Bytes())
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copy(buf[8+common.HashLength:], c.CHTRoot.Bytes())
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copy(buf[8+2*common.HashLength:], c.BloomRoot.Bytes())
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return crypto.Keccak256Hash(buf)
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}
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// Empty returns an indicator whether the checkpoint is regarded as empty.
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func (c *TrustedCheckpoint) Empty() bool {
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return c.SectionHead == (common.Hash{}) || c.CHTRoot == (common.Hash{}) || c.BloomRoot == (common.Hash{})
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}
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// CheckpointOracleConfig represents a set of checkpoint contract(which acts as an oracle)
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// config which used for light client checkpoint syncing.
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type CheckpointOracleConfig struct {
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Address common.Address `json:"address"`
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Signers []common.Address `json:"signers"`
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Threshold uint64 `json:"threshold"`
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}
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// ChainConfig is the core config which determines the blockchain settings.
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//
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// ChainConfig is stored in the database on a per block basis. This means
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// that any network, identified by its genesis block, can have its own
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// set of configuration options.
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type ChainConfig struct {
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ChainID *big.Int `json:"chainId"` // chainId identifies the current chain and is used for replay protection
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HomesteadBlock *big.Int `json:"homesteadBlock,omitempty"` // Homestead switch block (nil = no fork, 0 = already homestead)
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DAOForkBlock *big.Int `json:"daoForkBlock,omitempty"` // TheDAO hard-fork switch block (nil = no fork)
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DAOForkSupport bool `json:"daoForkSupport,omitempty"` // Whether the nodes supports or opposes the DAO hard-fork
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// EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150)
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EIP150Block *big.Int `json:"eip150Block,omitempty"` // EIP150 HF block (nil = no fork)
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EIP150Hash common.Hash `json:"eip150Hash,omitempty"` // EIP150 HF hash (needed for header only clients as only gas pricing changed)
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EIP155Block *big.Int `json:"eip155Block,omitempty"` // EIP155 HF block
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EIP158Block *big.Int `json:"eip158Block,omitempty"` // EIP158 HF block
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ByzantiumBlock *big.Int `json:"byzantiumBlock,omitempty"` // Byzantium switch block (nil = no fork, 0 = already on byzantium)
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ConstantinopleBlock *big.Int `json:"constantinopleBlock,omitempty"` // Constantinople switch block (nil = no fork, 0 = already activated)
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PetersburgBlock *big.Int `json:"petersburgBlock,omitempty"` // Petersburg switch block (nil = same as Constantinople)
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IstanbulBlock *big.Int `json:"istanbulBlock,omitempty"` // Istanbul switch block (nil = no fork, 0 = already on istanbul)
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EWASMBlock *big.Int `json:"ewasmBlock,omitempty"` // EWASM switch block (nil = no fork, 0 = already activated)
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// Various consensus engines
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Ethash *EthashConfig `json:"ethash,omitempty"`
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Clique *CliqueConfig `json:"clique,omitempty"`
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}
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// EthashConfig is the consensus engine configs for proof-of-work based sealing.
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type EthashConfig struct{}
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// String implements the stringer interface, returning the consensus engine details.
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func (c *EthashConfig) String() string {
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return "ethash"
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}
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// CliqueConfig is the consensus engine configs for proof-of-authority based sealing.
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type CliqueConfig struct {
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Period uint64 `json:"period"` // Number of seconds between blocks to enforce
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Epoch uint64 `json:"epoch"` // Epoch length to reset votes and checkpoint
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}
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// String implements the stringer interface, returning the consensus engine details.
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func (c *CliqueConfig) String() string {
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return "clique"
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}
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// String implements the fmt.Stringer interface.
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func (c *ChainConfig) String() string {
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var engine interface{}
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switch {
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case c.Ethash != nil:
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engine = c.Ethash
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case c.Clique != nil:
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engine = c.Clique
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default:
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engine = "unknown"
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}
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return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Petersburg: %v Istanbul: %v Engine: %v}",
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c.ChainID,
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c.HomesteadBlock,
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c.DAOForkBlock,
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c.DAOForkSupport,
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c.EIP150Block,
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c.EIP155Block,
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c.EIP158Block,
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c.ByzantiumBlock,
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c.ConstantinopleBlock,
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c.PetersburgBlock,
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c.IstanbulBlock,
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engine,
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)
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}
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// IsHomestead returns whether num is either equal to the homestead block or greater.
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func (c *ChainConfig) IsHomestead(num *big.Int) bool {
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return isForked(c.HomesteadBlock, num)
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}
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// IsDAOFork returns whether num is either equal to the DAO fork block or greater.
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func (c *ChainConfig) IsDAOFork(num *big.Int) bool {
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return isForked(c.DAOForkBlock, num)
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}
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// IsEIP150 returns whether num is either equal to the EIP150 fork block or greater.
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func (c *ChainConfig) IsEIP150(num *big.Int) bool {
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return isForked(c.EIP150Block, num)
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}
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// IsEIP155 returns whether num is either equal to the EIP155 fork block or greater.
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func (c *ChainConfig) IsEIP155(num *big.Int) bool {
|
|
return isForked(c.EIP155Block, num)
|
|
}
|
|
|
|
// IsEIP158 returns whether num is either equal to the EIP158 fork block or greater.
|
|
func (c *ChainConfig) IsEIP158(num *big.Int) bool {
|
|
return isForked(c.EIP158Block, num)
|
|
}
|
|
|
|
// IsByzantium returns whether num is either equal to the Byzantium fork block or greater.
|
|
func (c *ChainConfig) IsByzantium(num *big.Int) bool {
|
|
return isForked(c.ByzantiumBlock, num)
|
|
}
|
|
|
|
// IsConstantinople returns whether num is either equal to the Constantinople fork block or greater.
|
|
func (c *ChainConfig) IsConstantinople(num *big.Int) bool {
|
|
return isForked(c.ConstantinopleBlock, num)
|
|
}
|
|
|
|
// IsPetersburg returns whether num is either
|
|
// - equal to or greater than the PetersburgBlock fork block,
|
|
// - OR is nil, and Constantinople is active
|
|
func (c *ChainConfig) IsPetersburg(num *big.Int) bool {
|
|
return isForked(c.PetersburgBlock, num) || c.PetersburgBlock == nil && isForked(c.ConstantinopleBlock, num)
|
|
}
|
|
|
|
// IsIstanbul returns whether num is either equal to the Istanbul fork block or greater.
|
|
func (c *ChainConfig) IsIstanbul(num *big.Int) bool {
|
|
return isForked(c.IstanbulBlock, num)
|
|
}
|
|
|
|
// IsEWASM returns whether num represents a block number after the EWASM fork
|
|
func (c *ChainConfig) IsEWASM(num *big.Int) bool {
|
|
return isForked(c.EWASMBlock, num)
|
|
}
|
|
|
|
// CheckCompatible checks whether scheduled fork transitions have been imported
|
|
// with a mismatching chain configuration.
|
|
func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *ConfigCompatError {
|
|
bhead := new(big.Int).SetUint64(height)
|
|
|
|
// Iterate checkCompatible to find the lowest conflict.
|
|
var lasterr *ConfigCompatError
|
|
for {
|
|
err := c.checkCompatible(newcfg, bhead)
|
|
if err == nil || (lasterr != nil && err.RewindTo == lasterr.RewindTo) {
|
|
break
|
|
}
|
|
lasterr = err
|
|
bhead.SetUint64(err.RewindTo)
|
|
}
|
|
return lasterr
|
|
}
|
|
|
|
func (c *ChainConfig) checkCompatible(newcfg *ChainConfig, head *big.Int) *ConfigCompatError {
|
|
if isForkIncompatible(c.HomesteadBlock, newcfg.HomesteadBlock, head) {
|
|
return newCompatError("Homestead fork block", c.HomesteadBlock, newcfg.HomesteadBlock)
|
|
}
|
|
if isForkIncompatible(c.DAOForkBlock, newcfg.DAOForkBlock, head) {
|
|
return newCompatError("DAO fork block", c.DAOForkBlock, newcfg.DAOForkBlock)
|
|
}
|
|
if c.IsDAOFork(head) && c.DAOForkSupport != newcfg.DAOForkSupport {
|
|
return newCompatError("DAO fork support flag", c.DAOForkBlock, newcfg.DAOForkBlock)
|
|
}
|
|
if isForkIncompatible(c.EIP150Block, newcfg.EIP150Block, head) {
|
|
return newCompatError("EIP150 fork block", c.EIP150Block, newcfg.EIP150Block)
|
|
}
|
|
if isForkIncompatible(c.EIP155Block, newcfg.EIP155Block, head) {
|
|
return newCompatError("EIP155 fork block", c.EIP155Block, newcfg.EIP155Block)
|
|
}
|
|
if isForkIncompatible(c.EIP158Block, newcfg.EIP158Block, head) {
|
|
return newCompatError("EIP158 fork block", c.EIP158Block, newcfg.EIP158Block)
|
|
}
|
|
if c.IsEIP158(head) && !configNumEqual(c.ChainID, newcfg.ChainID) {
|
|
return newCompatError("EIP158 chain ID", c.EIP158Block, newcfg.EIP158Block)
|
|
}
|
|
if isForkIncompatible(c.ByzantiumBlock, newcfg.ByzantiumBlock, head) {
|
|
return newCompatError("Byzantium fork block", c.ByzantiumBlock, newcfg.ByzantiumBlock)
|
|
}
|
|
if isForkIncompatible(c.ConstantinopleBlock, newcfg.ConstantinopleBlock, head) {
|
|
return newCompatError("Constantinople fork block", c.ConstantinopleBlock, newcfg.ConstantinopleBlock)
|
|
}
|
|
if isForkIncompatible(c.PetersburgBlock, newcfg.PetersburgBlock, head) {
|
|
return newCompatError("Petersburg fork block", c.PetersburgBlock, newcfg.PetersburgBlock)
|
|
}
|
|
if isForkIncompatible(c.IstanbulBlock, newcfg.IstanbulBlock, head) {
|
|
return newCompatError("Istanbul fork block", c.IstanbulBlock, newcfg.IstanbulBlock)
|
|
}
|
|
if isForkIncompatible(c.EWASMBlock, newcfg.EWASMBlock, head) {
|
|
return newCompatError("ewasm fork block", c.EWASMBlock, newcfg.EWASMBlock)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// isForkIncompatible returns true if a fork scheduled at s1 cannot be rescheduled to
|
|
// block s2 because head is already past the fork.
|
|
func isForkIncompatible(s1, s2, head *big.Int) bool {
|
|
return (isForked(s1, head) || isForked(s2, head)) && !configNumEqual(s1, s2)
|
|
}
|
|
|
|
// isForked returns whether a fork scheduled at block s is active at the given head block.
|
|
func isForked(s, head *big.Int) bool {
|
|
if s == nil || head == nil {
|
|
return false
|
|
}
|
|
return s.Cmp(head) <= 0
|
|
}
|
|
|
|
func configNumEqual(x, y *big.Int) bool {
|
|
if x == nil {
|
|
return y == nil
|
|
}
|
|
if y == nil {
|
|
return x == nil
|
|
}
|
|
return x.Cmp(y) == 0
|
|
}
|
|
|
|
// ConfigCompatError is raised if the locally-stored blockchain is initialised with a
|
|
// ChainConfig that would alter the past.
|
|
type ConfigCompatError struct {
|
|
What string
|
|
// block numbers of the stored and new configurations
|
|
StoredConfig, NewConfig *big.Int
|
|
// the block number to which the local chain must be rewound to correct the error
|
|
RewindTo uint64
|
|
}
|
|
|
|
func newCompatError(what string, storedblock, newblock *big.Int) *ConfigCompatError {
|
|
var rew *big.Int
|
|
switch {
|
|
case storedblock == nil:
|
|
rew = newblock
|
|
case newblock == nil || storedblock.Cmp(newblock) < 0:
|
|
rew = storedblock
|
|
default:
|
|
rew = newblock
|
|
}
|
|
err := &ConfigCompatError{what, storedblock, newblock, 0}
|
|
if rew != nil && rew.Sign() > 0 {
|
|
err.RewindTo = rew.Uint64() - 1
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (err *ConfigCompatError) Error() string {
|
|
return fmt.Sprintf("mismatching %s in database (have %d, want %d, rewindto %d)", err.What, err.StoredConfig, err.NewConfig, err.RewindTo)
|
|
}
|
|
|
|
// Rules wraps ChainConfig and is merely syntactic sugar or can be used for functions
|
|
// that do not have or require information about the block.
|
|
//
|
|
// Rules is a one time interface meaning that it shouldn't be used in between transition
|
|
// phases.
|
|
type Rules struct {
|
|
ChainID *big.Int
|
|
IsHomestead, IsEIP150, IsEIP155, IsEIP158 bool
|
|
IsByzantium, IsConstantinople, IsPetersburg, IsIstanbul bool
|
|
}
|
|
|
|
// Rules ensures c's ChainID is not nil.
|
|
func (c *ChainConfig) Rules(num *big.Int) Rules {
|
|
chainID := c.ChainID
|
|
if chainID == nil {
|
|
chainID = new(big.Int)
|
|
}
|
|
return Rules{
|
|
ChainID: new(big.Int).Set(chainID),
|
|
IsHomestead: c.IsHomestead(num),
|
|
IsEIP150: c.IsEIP150(num),
|
|
IsEIP155: c.IsEIP155(num),
|
|
IsEIP158: c.IsEIP158(num),
|
|
IsByzantium: c.IsByzantium(num),
|
|
IsConstantinople: c.IsConstantinople(num),
|
|
IsPetersburg: c.IsPetersburg(num),
|
|
IsIstanbul: c.IsIstanbul(num),
|
|
}
|
|
}
|
|
|