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352 lines
12 KiB
352 lines
12 KiB
// Copyright 2014 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 core
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import (
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"bytes"
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"crypto/ecdsa"
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"encoding/hex"
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"encoding/json"
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"errors"
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"fmt"
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"math/big"
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"os"
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"strings"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/hexutil"
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"github.com/ethereum/go-ethereum/common/math"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/rlp"
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blockfactory "github.com/harmony-one/harmony/block/factory"
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"github.com/harmony-one/harmony/internal/params"
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"github.com/harmony-one/harmony/staking/slash"
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"github.com/harmony-one/harmony/common/denominations"
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"github.com/harmony-one/harmony/core/rawdb"
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"github.com/harmony-one/harmony/core/state"
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"github.com/harmony-one/harmony/core/types"
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nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
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shardingconfig "github.com/harmony-one/harmony/internal/configs/sharding"
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"github.com/harmony-one/harmony/internal/utils"
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"github.com/harmony-one/harmony/shard"
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)
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// no go:generate gencodec -type Genesis -field-override genesisSpecMarshaling -out gen_genesis.go
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// no go:generate gencodec -type GenesisAccount -field-override genesisAccountMarshaling -out gen_genesis_account.go
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var errGenesisNoConfig = errors.New("genesis has no chain configuration")
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const (
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// GenesisEpoch is the number of the genesis epoch.
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GenesisEpoch = 0
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// GenesisONEToken is the initial total number of ONE in the genesis block for mainnet.
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GenesisONEToken = 12600000000
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// ContractDeployerInitFund is the initial fund for the contract deployer account in testnet/devnet.
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ContractDeployerInitFund = 10000000000
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// InitFreeFund is the initial fund for permissioned accounts for testnet/devnet/
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InitFreeFund = 100
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)
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var (
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// GenesisFund is the initial total number of ONE (in atto) in the genesis block for mainnet.
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GenesisFund = new(big.Int).Mul(big.NewInt(GenesisONEToken), big.NewInt(denominations.One))
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)
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// Genesis specifies the header fields, state of a genesis block. It also defines hard
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// fork switch-over blocks through the chain configuration.
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type Genesis struct {
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Config *params.ChainConfig `json:"config"`
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Factory blockfactory.Factory `json:"-"`
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Nonce uint64 `json:"nonce"`
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ShardID uint32 `json:"shardID"`
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Timestamp uint64 `json:"timestamp"`
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ExtraData []byte `json:"extraData"`
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GasLimit uint64 `json:"gasLimit" gencodec:"required"`
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Mixhash common.Hash `json:"mixHash"`
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Coinbase common.Address `json:"coinbase"`
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Alloc GenesisAlloc `json:"alloc" gencodec:"required"`
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ShardStateHash common.Hash `json:"shardStateHash" gencodec:"required"`
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ShardState shard.State `json:"shardState" gencodec:"required"`
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// These fields are used for consensus tests. Please don't use them
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// in actual genesis blocks.
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Number uint64 `json:"number"`
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GasUsed uint64 `json:"gasUsed"`
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ParentHash common.Hash `json:"parentHash"`
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}
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// NewGenesisSpec creates a new genesis spec for the given network type and shard ID.
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// Note that the shard state is NOT initialized.
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func NewGenesisSpec(netType nodeconfig.NetworkType, shardID uint32) *Genesis {
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genesisAlloc := make(GenesisAlloc)
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chainConfig := params.ChainConfig{}
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gasLimit := params.GenesisGasLimit
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switch netType {
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case nodeconfig.Mainnet:
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chainConfig = *params.MainnetChainConfig
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if shardID == 0 {
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foundationAddress := common.HexToAddress("0xE25ABC3f7C3d5fB7FB81EAFd421FF1621A61107c")
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genesisAlloc[foundationAddress] = GenesisAccount{Balance: GenesisFund}
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}
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case nodeconfig.Pangaea:
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chainConfig = *params.PangaeaChainConfig
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case nodeconfig.Partner:
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chainConfig = *params.PartnerChainConfig
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case nodeconfig.Stressnet:
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chainConfig = *params.StressnetChainConfig
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default: // all other types share testnet config
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chainConfig = *params.TestChainConfig
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}
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// All non-mainnet chains get test accounts
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if netType != nodeconfig.Mainnet {
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gasLimit = params.TestGenesisGasLimit
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// Smart contract deployer account used to deploy initial smart contract
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contractDeployerKey, _ := ecdsa.GenerateKey(
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crypto.S256(),
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strings.NewReader("Test contract key string stream that is fixed so that generated test key are deterministic every time"),
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)
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contractDeployerAddress := crypto.PubkeyToAddress(contractDeployerKey.PublicKey)
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contractDeployerFunds := big.NewInt(ContractDeployerInitFund)
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contractDeployerFunds = contractDeployerFunds.Mul(
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contractDeployerFunds, big.NewInt(denominations.One),
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)
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genesisAlloc[contractDeployerAddress] = GenesisAccount{Balance: contractDeployerFunds}
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// Localnet only testing account
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if netType == nodeconfig.Localnet {
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// PK: 1f84c95ac16e6a50f08d44c7bde7aff8742212fda6e4321fde48bf83bef266dc
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testAddress := common.HexToAddress("0xA5241513DA9F4463F1d4874b548dFBAC29D91f34")
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genesisAlloc[testAddress] = GenesisAccount{Balance: contractDeployerFunds}
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}
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}
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return &Genesis{
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Config: &chainConfig,
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Factory: blockfactory.NewFactory(&chainConfig),
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Alloc: genesisAlloc,
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ShardID: shardID,
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GasLimit: gasLimit,
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Timestamp: 1561734000, // GMT: Friday, June 28, 2019 3:00:00 PM. PST: Friday, June 28, 2019 8:00:00 AM
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ExtraData: []byte("Harmony for One and All. Open Consensus for 10B."),
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}
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}
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// GenesisAlloc specifies the initial state that is part of the genesis block.
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type GenesisAlloc map[common.Address]GenesisAccount
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// UnmarshalJSON is to deserialize the data into GenesisAlloc.
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func (ga *GenesisAlloc) UnmarshalJSON(data []byte) error {
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m := make(map[common.UnprefixedAddress]GenesisAccount)
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if err := json.Unmarshal(data, &m); err != nil {
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return err
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}
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*ga = make(GenesisAlloc)
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for addr, a := range m {
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(*ga)[common.Address(addr)] = a
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}
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return nil
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}
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// GenesisAccount is an account in the state of the genesis block.
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type GenesisAccount struct {
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Code []byte `json:"code,omitempty"`
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Storage map[common.Hash]common.Hash `json:"storage,omitempty"`
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Balance *big.Int `json:"balance" gencodec:"required"`
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Nonce uint64 `json:"nonce,omitempty"`
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PrivateKey []byte `json:"secretKey,omitempty"` // for tests
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}
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// field type overrides for gencodec
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type genesisSpecMarshaling struct {
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Nonce math.HexOrDecimal64
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Timestamp math.HexOrDecimal64
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ExtraData hexutil.Bytes
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GasLimit math.HexOrDecimal64
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GasUsed math.HexOrDecimal64
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Number math.HexOrDecimal64
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Difficulty *math.HexOrDecimal256
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Alloc map[common.UnprefixedAddress]GenesisAccount
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}
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type genesisAccountMarshaling struct {
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Code hexutil.Bytes
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Balance *math.HexOrDecimal256
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Nonce math.HexOrDecimal64
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Storage map[storageJSON]storageJSON
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PrivateKey hexutil.Bytes
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}
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// storageJSON represents a 256 bit byte array, but allows less than 256 bits when
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// unmarshaling from hex.
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type storageJSON common.Hash
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func (h *storageJSON) UnmarshalText(text []byte) error {
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text = bytes.TrimPrefix(text, []byte("0x"))
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if len(text) > 64 {
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return fmt.Errorf("too many hex characters in storage key/value %q", text)
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}
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offset := len(h) - len(text)/2 // pad on the left
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if _, err := hex.Decode(h[offset:], text); err != nil {
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return fmt.Errorf("invalid hex storage key/value %q", text)
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}
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return nil
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}
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func (h storageJSON) MarshalText() ([]byte, error) {
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return hexutil.Bytes(h[:]).MarshalText()
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}
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// GenesisMismatchError is raised when trying to overwrite an existing
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// genesis block with an incompatible one.
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type GenesisMismatchError struct {
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Stored, New common.Hash
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}
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func (e *GenesisMismatchError) Error() string {
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return fmt.Sprintf("database already contains an incompatible genesis block (have %x, new %x)", e.Stored[:8], e.New[:8])
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}
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func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
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switch {
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case g != nil:
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return g.Config
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default:
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return params.AllProtocolChanges
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}
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}
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// ToBlock creates the genesis block and writes state of a genesis specification
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// to the given database (or discards it if nil).
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func (g *Genesis) ToBlock(db ethdb.Database) *types.Block {
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if db == nil {
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utils.Logger().Error().Msg("db should be initialized")
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os.Exit(1)
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}
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statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
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for addr, account := range g.Alloc {
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statedb.AddBalance(addr, account.Balance)
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statedb.SetCode(addr, account.Code)
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statedb.SetNonce(addr, account.Nonce)
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for key, value := range account.Storage {
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statedb.SetState(addr, key, value)
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}
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}
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root := statedb.IntermediateRoot(false)
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shardStateBytes, err := shard.EncodeWrapper(g.ShardState, false)
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if err != nil {
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utils.Logger().Error().Msg("failed to rlp-serialize genesis shard state")
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os.Exit(1)
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}
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head := g.Factory.NewHeader(common.Big0).With().
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Number(new(big.Int).SetUint64(g.Number)).
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ShardID(g.ShardID).
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Time(new(big.Int).SetUint64(g.Timestamp)).
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ParentHash(g.ParentHash).
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Extra(g.ExtraData).
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GasLimit(g.GasLimit).
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GasUsed(g.GasUsed).
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MixDigest(g.Mixhash).
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Coinbase(g.Coinbase).
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Root(root).
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ShardStateHash(g.ShardStateHash).
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ShardState(shardStateBytes).
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Header()
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statedb.Commit(false)
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statedb.Database().TrieDB().Commit(root, true)
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return types.NewBlock(head, nil, nil, nil, nil, nil)
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}
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// Commit writes the block and state of a genesis specification to the database.
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// The block is committed as the canonical head block.
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func (g *Genesis) Commit(db ethdb.Database) (*types.Block, error) {
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block := g.ToBlock(db)
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if block.Number().Sign() != 0 {
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return nil, fmt.Errorf("can't commit genesis block with number > 0")
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}
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if err := rawdb.WriteBlock(db, block); err != nil {
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return nil, err
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}
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if err := rawdb.WriteReceipts(db, block.Hash(), block.NumberU64(), nil); err != nil {
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return nil, err
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}
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if err := rawdb.WriteCanonicalHash(db, block.Hash(), block.NumberU64()); err != nil {
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return nil, err
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}
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if err := rawdb.WriteHeadBlockHash(db, block.Hash()); err != nil {
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return nil, err
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}
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if err := rawdb.WriteHeadHeaderHash(db, block.Hash()); err != nil {
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return nil, err
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}
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err := rawdb.WriteShardStateBytes(db, block.Header().Epoch(), block.Header().ShardState())
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if err != nil {
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utils.Logger().Error().Err(err).Msg("Failed to store genesis shard state")
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}
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config := g.Config
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if config == nil {
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config = params.AllProtocolChanges
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}
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rawdb.WriteChainConfig(db, block.Hash(), config)
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return block, nil
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}
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// MustCommit writes the genesis block and state to db, panicking on error.
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// The block is committed as the canonical head block.
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func (g *Genesis) MustCommit(db ethdb.Database) *types.Block {
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block, err := g.Commit(db)
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if err != nil {
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panic(err)
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}
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rawdb.WriteBlockRewardAccumulator(db, big.NewInt(0), 0)
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data, err := rlp.EncodeToBytes(slash.Records{})
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if err != nil {
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panic(err)
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}
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if err := rawdb.WritePendingSlashingCandidates(db, data); err != nil {
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panic(err)
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}
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return block
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}
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// GetGenesisSpec for a given shard
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func GetGenesisSpec(shardID uint32) *Genesis {
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if shard.Schedule.GetNetworkID() == shardingconfig.MainNet {
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return NewGenesisSpec(nodeconfig.Mainnet, shardID)
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}
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if shard.Schedule.GetNetworkID() == shardingconfig.LocalNet {
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return NewGenesisSpec(nodeconfig.Localnet, shardID)
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}
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return NewGenesisSpec(nodeconfig.Testnet, shardID)
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}
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// GetInitialFunds for a given shard
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func GetInitialFunds(shardID uint32) *big.Int {
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spec, total := GetGenesisSpec(shardID), big.NewInt(0)
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for _, account := range spec.Alloc {
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total = new(big.Int).Add(account.Balance, total)
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}
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return total
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}
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