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cmd, core, eth, els, params: disallow setheads below genesis, tweaks

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pull/25878/head
Péter Szilágyi 2 years ago
parent fcf3d00488
commit b56c796220
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GPG Key ID: E9AE538CEDF8293D
10 changed files with 147 additions and 157 deletions
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  1. 9
      cmd/geth/config.go
  2. 3
      cmd/geth/main.go
  3. 11
      cmd/utils/flags.go
  4. 11
      core/genesis.go
  5. 13
      core/headerchain.go
  6. 7
      eth/backend.go
  7. 7
      eth/ethconfig/config.go
  8. 184
      eth/ethconfig/gen_config.go
  9. 7
      les/client.go
  10. 52
      params/config.go

9
cmd/geth/config.go
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@ -158,14 +158,9 @@ func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) {
// makeFullNode loads geth configuration and creates the Ethereum backend. // makeFullNode loads geth configuration and creates the Ethereum backend.
func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) { func makeFullNode(ctx *cli.Context) (*node.Node, ethapi.Backend) {
stack, cfg := makeConfigNode(ctx) stack, cfg := makeConfigNode(ctx)
if ctx.IsSet(utils.OverrideTerminalTotalDifficulty.Name) { if ctx.IsSet(utils.OverrideShanghai.Name) {
cfg.Eth.OverrideTerminalTotalDifficulty = flags.GlobalBig(ctx, utils.OverrideTerminalTotalDifficulty.Name) cfg.Eth.OverrideShanghai = flags.GlobalBig(ctx, utils.OverrideShanghai.Name)
} }
if ctx.IsSet(utils.OverrideTerminalTotalDifficultyPassed.Name) {
override := ctx.Bool(utils.OverrideTerminalTotalDifficultyPassed.Name)
cfg.Eth.OverrideTerminalTotalDifficultyPassed = &override
}
backend, eth := utils.RegisterEthService(stack, &cfg.Eth) backend, eth := utils.RegisterEthService(stack, &cfg.Eth)
// Configure log filter RPC API. // Configure log filter RPC API.

3
cmd/geth/main.go
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@ -64,8 +64,7 @@ var (
utils.NoUSBFlag, utils.NoUSBFlag,
utils.USBFlag, utils.USBFlag,
utils.SmartCardDaemonPathFlag, utils.SmartCardDaemonPathFlag,
utils.OverrideTerminalTotalDifficulty, utils.OverrideShanghai,
utils.OverrideTerminalTotalDifficultyPassed,
utils.EthashCacheDirFlag, utils.EthashCacheDirFlag,
utils.EthashCachesInMemoryFlag, utils.EthashCachesInMemoryFlag,
utils.EthashCachesOnDiskFlag, utils.EthashCachesOnDiskFlag,

11
cmd/utils/flags.go
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@ -271,14 +271,9 @@ var (
Value: 2048, Value: 2048,
Category: flags.EthCategory, Category: flags.EthCategory,
} }
OverrideTerminalTotalDifficulty = &flags.BigFlag{ OverrideShanghai = &flags.BigFlag{
Name: "override.terminaltotaldifficulty", Name: "override.shanghai",
Usage: "Manually specify TerminalTotalDifficulty, overriding the bundled setting", Usage: "Manually specify the Shanghai fork timestamp, overriding the bundled setting",
Category: flags.EthCategory,
}
OverrideTerminalTotalDifficultyPassed = &cli.BoolFlag{
Name: "override.terminaltotaldifficultypassed",
Usage: "Manually specify TerminalTotalDifficultyPassed, overriding the bundled setting",
Category: flags.EthCategory, Category: flags.EthCategory,
} }
// Light server and client settings // Light server and client settings

11
core/genesis.go
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@ -269,8 +269,7 @@ func (e *GenesisMismatchError) Error() string {
// ChainOverrides contains the changes to chain config. // ChainOverrides contains the changes to chain config.
type ChainOverrides struct { type ChainOverrides struct {
OverrideTerminalTotalDifficulty *big.Int OverrideShanghai *big.Int
OverrideTerminalTotalDifficultyPassed *bool
} }
// SetupGenesisBlock writes or updates the genesis block in db. // SetupGenesisBlock writes or updates the genesis block in db.
@ -296,15 +295,11 @@ func SetupGenesisBlockWithOverride(db ethdb.Database, triedb *trie.Database, gen
} }
applyOverrides := func(config *params.ChainConfig) { applyOverrides := func(config *params.ChainConfig) {
if config != nil { if config != nil {
if overrides != nil && overrides.OverrideTerminalTotalDifficulty != nil { if overrides != nil && overrides.OverrideShanghai != nil {
config.TerminalTotalDifficulty = overrides.OverrideTerminalTotalDifficulty config.ShanghaiTime = overrides.OverrideShanghai
}
if overrides != nil && overrides.OverrideTerminalTotalDifficultyPassed != nil {
config.TerminalTotalDifficultyPassed = *overrides.OverrideTerminalTotalDifficultyPassed
} }
} }
} }
// Just commit the new block if there is no stored genesis block. // Just commit the new block if there is no stored genesis block.
stored := rawdb.ReadCanonicalHash(db, 0) stored := rawdb.ReadCanonicalHash(db, 0)
if (stored == common.Hash{}) { if (stored == common.Hash{}) {

13
core/headerchain.go
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@ -578,6 +578,19 @@ func (hc *HeaderChain) SetHeadWithTimestamp(time uint64, updateFn UpdateHeadBloc
// setHead rewinds the local chain to a new head block or a head timestamp. // setHead rewinds the local chain to a new head block or a head timestamp.
// Everything above the new head will be deleted and the new one set. // Everything above the new head will be deleted and the new one set.
func (hc *HeaderChain) setHead(headBlock uint64, headTime uint64, updateFn UpdateHeadBlocksCallback, delFn DeleteBlockContentCallback) { func (hc *HeaderChain) setHead(headBlock uint64, headTime uint64, updateFn UpdateHeadBlocksCallback, delFn DeleteBlockContentCallback) {
// Sanity check that there's no attempt to undo the genesis block. This is
// a fairly synthetic case where someone enables a timestamp based fork
// below the genesis timestamp. It's nice to not allow that instead of the
// entire chain getting deleted.
if headTime > 0 && hc.genesisHeader.Time > headTime {
// Note, a critical error is quite brutal, but we should really not reach
// this point. Since pre-timestamp based forks it was impossible to have
// a fork before block 0, the setHead would always work. With timestamp
// forks it becomes possible to specify below the genesis. That said, the
// only time we setHead via timestamp is with chain config changes on the
// startup, so failing hard there is ok.
log.Crit("Rejecting genesis rewind via timestamp", "target", headTime, "genesis", hc.genesisHeader.Time)
}
var ( var (
parentHash common.Hash parentHash common.Hash
batch = hc.chainDb.NewBatch() batch = hc.chainDb.NewBatch()

7
eth/backend.go
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@ -195,11 +195,8 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) {
) )
// Override the chain config with provided settings. // Override the chain config with provided settings.
var overrides core.ChainOverrides var overrides core.ChainOverrides
if config.OverrideTerminalTotalDifficulty != nil { if config.OverrideShanghai != nil {
overrides.OverrideTerminalTotalDifficulty = config.OverrideTerminalTotalDifficulty overrides.OverrideShanghai = config.OverrideShanghai
}
if config.OverrideTerminalTotalDifficultyPassed != nil {
overrides.OverrideTerminalTotalDifficultyPassed = config.OverrideTerminalTotalDifficultyPassed
} }
eth.blockchain, err = core.NewBlockChain(chainDb, cacheConfig, config.Genesis, &overrides, eth.engine, vmConfig, eth.shouldPreserve, &config.TxLookupLimit) eth.blockchain, err = core.NewBlockChain(chainDb, cacheConfig, config.Genesis, &overrides, eth.engine, vmConfig, eth.shouldPreserve, &config.TxLookupLimit)
if err != nil { if err != nil {

7
eth/ethconfig/config.go
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@ -206,11 +206,8 @@ type Config struct {
// CheckpointOracle is the configuration for checkpoint oracle. // CheckpointOracle is the configuration for checkpoint oracle.
CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"` CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
// OverrideTerminalTotalDifficulty (TODO: remove after the fork) // OverrideShanghai (TODO: remove after the fork)
OverrideTerminalTotalDifficulty *big.Int `toml:",omitempty"` OverrideShanghai *big.Int `toml:",omitempty"`
// OverrideTerminalTotalDifficultyPassed (TODO: remove after the fork)
OverrideTerminalTotalDifficultyPassed *bool `toml:",omitempty"`
} }
// CreateConsensusEngine creates a consensus engine for the given chain configuration. // CreateConsensusEngine creates a consensus engine for the given chain configuration.

184
eth/ethconfig/gen_config.go
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@ -19,50 +19,49 @@ import (
// MarshalTOML marshals as TOML. // MarshalTOML marshals as TOML.
func (c Config) MarshalTOML() (interface{}, error) { func (c Config) MarshalTOML() (interface{}, error) {
type Config struct { type Config struct {
Genesis *core.Genesis `toml:",omitempty"` Genesis *core.Genesis `toml:",omitempty"`
NetworkId uint64 NetworkId uint64
SyncMode downloader.SyncMode SyncMode downloader.SyncMode
EthDiscoveryURLs []string EthDiscoveryURLs []string
SnapDiscoveryURLs []string SnapDiscoveryURLs []string
NoPruning bool NoPruning bool
NoPrefetch bool NoPrefetch bool
TxLookupLimit uint64 `toml:",omitempty"` TxLookupLimit uint64 `toml:",omitempty"`
RequiredBlocks map[uint64]common.Hash `toml:"-"` RequiredBlocks map[uint64]common.Hash `toml:"-"`
LightServ int `toml:",omitempty"` LightServ int `toml:",omitempty"`
LightIngress int `toml:",omitempty"` LightIngress int `toml:",omitempty"`
LightEgress int `toml:",omitempty"` LightEgress int `toml:",omitempty"`
LightPeers int `toml:",omitempty"` LightPeers int `toml:",omitempty"`
LightNoPrune bool `toml:",omitempty"` LightNoPrune bool `toml:",omitempty"`
LightNoSyncServe bool `toml:",omitempty"` LightNoSyncServe bool `toml:",omitempty"`
SyncFromCheckpoint bool `toml:",omitempty"` SyncFromCheckpoint bool `toml:",omitempty"`
UltraLightServers []string `toml:",omitempty"` UltraLightServers []string `toml:",omitempty"`
UltraLightFraction int `toml:",omitempty"` UltraLightFraction int `toml:",omitempty"`
UltraLightOnlyAnnounce bool `toml:",omitempty"` UltraLightOnlyAnnounce bool `toml:",omitempty"`
SkipBcVersionCheck bool `toml:"-"` SkipBcVersionCheck bool `toml:"-"`
DatabaseHandles int `toml:"-"` DatabaseHandles int `toml:"-"`
DatabaseCache int DatabaseCache int
DatabaseFreezer string DatabaseFreezer string
TrieCleanCache int TrieCleanCache int
TrieCleanCacheJournal string `toml:",omitempty"` TrieCleanCacheJournal string `toml:",omitempty"`
TrieCleanCacheRejournal time.Duration `toml:",omitempty"` TrieCleanCacheRejournal time.Duration `toml:",omitempty"`
TrieDirtyCache int TrieDirtyCache int
TrieTimeout time.Duration TrieTimeout time.Duration
SnapshotCache int SnapshotCache int
Preimages bool Preimages bool
FilterLogCacheSize int FilterLogCacheSize int
Miner miner.Config Miner miner.Config
Ethash ethash.Config Ethash ethash.Config
TxPool txpool.Config TxPool txpool.Config
GPO gasprice.Config GPO gasprice.Config
EnablePreimageRecording bool EnablePreimageRecording bool
DocRoot string `toml:"-"` DocRoot string `toml:"-"`
RPCGasCap uint64 RPCGasCap uint64
RPCEVMTimeout time.Duration RPCEVMTimeout time.Duration
RPCTxFeeCap float64 RPCTxFeeCap float64
Checkpoint *params.TrustedCheckpoint `toml:",omitempty"` Checkpoint *params.TrustedCheckpoint `toml:",omitempty"`
CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"` CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
OverrideTerminalTotalDifficulty *big.Int `toml:",omitempty"` OverrideShanghai *big.Int `toml:",omitempty"`
OverrideTerminalTotalDifficultyPassed *bool `toml:",omitempty"`
} }
var enc Config var enc Config
enc.Genesis = c.Genesis enc.Genesis = c.Genesis
@ -107,58 +106,56 @@ func (c Config) MarshalTOML() (interface{}, error) {
enc.RPCTxFeeCap = c.RPCTxFeeCap enc.RPCTxFeeCap = c.RPCTxFeeCap
enc.Checkpoint = c.Checkpoint enc.Checkpoint = c.Checkpoint
enc.CheckpointOracle = c.CheckpointOracle enc.CheckpointOracle = c.CheckpointOracle
enc.OverrideTerminalTotalDifficulty = c.OverrideTerminalTotalDifficulty enc.OverrideShanghai = c.OverrideShanghai
enc.OverrideTerminalTotalDifficultyPassed = c.OverrideTerminalTotalDifficultyPassed
return &enc, nil return &enc, nil
} }
// UnmarshalTOML unmarshals from TOML. // UnmarshalTOML unmarshals from TOML.
func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error { func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
type Config struct { type Config struct {
Genesis *core.Genesis `toml:",omitempty"` Genesis *core.Genesis `toml:",omitempty"`
NetworkId *uint64 NetworkId *uint64
SyncMode *downloader.SyncMode SyncMode *downloader.SyncMode
EthDiscoveryURLs []string EthDiscoveryURLs []string
SnapDiscoveryURLs []string SnapDiscoveryURLs []string
NoPruning *bool NoPruning *bool
NoPrefetch *bool NoPrefetch *bool
TxLookupLimit *uint64 `toml:",omitempty"` TxLookupLimit *uint64 `toml:",omitempty"`
RequiredBlocks map[uint64]common.Hash `toml:"-"` RequiredBlocks map[uint64]common.Hash `toml:"-"`
LightServ *int `toml:",omitempty"` LightServ *int `toml:",omitempty"`
LightIngress *int `toml:",omitempty"` LightIngress *int `toml:",omitempty"`
LightEgress *int `toml:",omitempty"` LightEgress *int `toml:",omitempty"`
LightPeers *int `toml:",omitempty"` LightPeers *int `toml:",omitempty"`
LightNoPrune *bool `toml:",omitempty"` LightNoPrune *bool `toml:",omitempty"`
LightNoSyncServe *bool `toml:",omitempty"` LightNoSyncServe *bool `toml:",omitempty"`
SyncFromCheckpoint *bool `toml:",omitempty"` SyncFromCheckpoint *bool `toml:",omitempty"`
UltraLightServers []string `toml:",omitempty"` UltraLightServers []string `toml:",omitempty"`
UltraLightFraction *int `toml:",omitempty"` UltraLightFraction *int `toml:",omitempty"`
UltraLightOnlyAnnounce *bool `toml:",omitempty"` UltraLightOnlyAnnounce *bool `toml:",omitempty"`
SkipBcVersionCheck *bool `toml:"-"` SkipBcVersionCheck *bool `toml:"-"`
DatabaseHandles *int `toml:"-"` DatabaseHandles *int `toml:"-"`
DatabaseCache *int DatabaseCache *int
DatabaseFreezer *string DatabaseFreezer *string
TrieCleanCache *int TrieCleanCache *int
TrieCleanCacheJournal *string `toml:",omitempty"` TrieCleanCacheJournal *string `toml:",omitempty"`
TrieCleanCacheRejournal *time.Duration `toml:",omitempty"` TrieCleanCacheRejournal *time.Duration `toml:",omitempty"`
TrieDirtyCache *int TrieDirtyCache *int
TrieTimeout *time.Duration TrieTimeout *time.Duration
SnapshotCache *int SnapshotCache *int
Preimages *bool Preimages *bool
FilterLogCacheSize *int FilterLogCacheSize *int
Miner *miner.Config Miner *miner.Config
Ethash *ethash.Config Ethash *ethash.Config
TxPool *txpool.Config TxPool *txpool.Config
GPO *gasprice.Config GPO *gasprice.Config
EnablePreimageRecording *bool EnablePreimageRecording *bool
DocRoot *string `toml:"-"` DocRoot *string `toml:"-"`
RPCGasCap *uint64 RPCGasCap *uint64
RPCEVMTimeout *time.Duration RPCEVMTimeout *time.Duration
RPCTxFeeCap *float64 RPCTxFeeCap *float64
Checkpoint *params.TrustedCheckpoint `toml:",omitempty"` Checkpoint *params.TrustedCheckpoint `toml:",omitempty"`
CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"` CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
OverrideTerminalTotalDifficulty *big.Int `toml:",omitempty"` OverrideShanghai *big.Int `toml:",omitempty"`
OverrideTerminalTotalDifficultyPassed *bool `toml:",omitempty"`
} }
var dec Config var dec Config
if err := unmarshal(&dec); err != nil { if err := unmarshal(&dec); err != nil {
@ -290,11 +287,8 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
if dec.CheckpointOracle != nil { if dec.CheckpointOracle != nil {
c.CheckpointOracle = dec.CheckpointOracle c.CheckpointOracle = dec.CheckpointOracle
} }
if dec.OverrideTerminalTotalDifficulty != nil { if dec.OverrideShanghai != nil {
c.OverrideTerminalTotalDifficulty = dec.OverrideTerminalTotalDifficulty c.OverrideShanghai = dec.OverrideShanghai
}
if dec.OverrideTerminalTotalDifficultyPassed != nil {
c.OverrideTerminalTotalDifficultyPassed = dec.OverrideTerminalTotalDifficultyPassed
} }
return nil return nil
} }

7
les/client.go
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@ -94,11 +94,8 @@ func New(stack *node.Node, config *ethconfig.Config) (*LightEthereum, error) {
return nil, err return nil, err
} }
var overrides core.ChainOverrides var overrides core.ChainOverrides
if config.OverrideTerminalTotalDifficulty != nil { if config.OverrideShanghai != nil {
overrides.OverrideTerminalTotalDifficulty = config.OverrideTerminalTotalDifficulty overrides.OverrideShanghai = config.OverrideShanghai
}
if config.OverrideTerminalTotalDifficultyPassed != nil {
overrides.OverrideTerminalTotalDifficultyPassed = config.OverrideTerminalTotalDifficultyPassed
} }
chainConfig, genesisHash, genesisErr := core.SetupGenesisBlockWithOverride(chainDb, trie.NewDatabase(chainDb), config.Genesis, &overrides) chainConfig, genesisHash, genesisErr := core.SetupGenesisBlockWithOverride(chainDb, trie.NewDatabase(chainDb), config.Genesis, &overrides)
if _, isCompat := genesisErr.(*params.ConfigCompatError); genesisErr != nil && !isCompat { if _, isCompat := genesisErr.(*params.ConfigCompatError); genesisErr != nil && !isCompat {

52
params/config.go
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@ -445,45 +445,53 @@ func (c *ChainConfig) Description() string {
// Create a list of forks with a short description of them. Forks that only // Create a list of forks with a short description of them. Forks that only
// makes sense for mainnet should be optional at printing to avoid bloating // makes sense for mainnet should be optional at printing to avoid bloating
// the output for testnets and private networks. // the output for testnets and private networks.
banner += "Pre-Merge hard forks:\n" banner += "Pre-Merge hard forks (block based):\n"
banner += fmt.Sprintf(" - Homestead: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/homestead.md)\n", c.HomesteadBlock) banner += fmt.Sprintf(" - Homestead: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/homestead.md)\n", c.HomesteadBlock)
if c.DAOForkBlock != nil { if c.DAOForkBlock != nil {
banner += fmt.Sprintf(" - DAO Fork: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/dao-fork.md)\n", c.DAOForkBlock) banner += fmt.Sprintf(" - DAO Fork: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/dao-fork.md)\n", c.DAOForkBlock)
} }
banner += fmt.Sprintf(" - Tangerine Whistle (EIP 150): %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/tangerine-whistle.md)\n", c.EIP150Block) banner += fmt.Sprintf(" - Tangerine Whistle (EIP 150): #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/tangerine-whistle.md)\n", c.EIP150Block)
banner += fmt.Sprintf(" - Spurious Dragon/1 (EIP 155): %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/spurious-dragon.md)\n", c.EIP155Block) banner += fmt.Sprintf(" - Spurious Dragon/1 (EIP 155): #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/spurious-dragon.md)\n", c.EIP155Block)
banner += fmt.Sprintf(" - Spurious Dragon/2 (EIP 158): %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/spurious-dragon.md)\n", c.EIP155Block) banner += fmt.Sprintf(" - Spurious Dragon/2 (EIP 158): #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/spurious-dragon.md)\n", c.EIP155Block)
banner += fmt.Sprintf(" - Byzantium: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/byzantium.md)\n", c.ByzantiumBlock) banner += fmt.Sprintf(" - Byzantium: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/byzantium.md)\n", c.ByzantiumBlock)
banner += fmt.Sprintf(" - Constantinople: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/constantinople.md)\n", c.ConstantinopleBlock) banner += fmt.Sprintf(" - Constantinople: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/constantinople.md)\n", c.ConstantinopleBlock)
banner += fmt.Sprintf(" - Petersburg: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/petersburg.md)\n", c.PetersburgBlock) banner += fmt.Sprintf(" - Petersburg: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/petersburg.md)\n", c.PetersburgBlock)
banner += fmt.Sprintf(" - Istanbul: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/istanbul.md)\n", c.IstanbulBlock) banner += fmt.Sprintf(" - Istanbul: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/istanbul.md)\n", c.IstanbulBlock)
if c.MuirGlacierBlock != nil { if c.MuirGlacierBlock != nil {
banner += fmt.Sprintf(" - Muir Glacier: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/muir-glacier.md)\n", c.MuirGlacierBlock) banner += fmt.Sprintf(" - Muir Glacier: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/muir-glacier.md)\n", c.MuirGlacierBlock)
} }
banner += fmt.Sprintf(" - Berlin: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/berlin.md)\n", c.BerlinBlock) banner += fmt.Sprintf(" - Berlin: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/berlin.md)\n", c.BerlinBlock)
banner += fmt.Sprintf(" - London: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/london.md)\n", c.LondonBlock) banner += fmt.Sprintf(" - London: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/london.md)\n", c.LondonBlock)
if c.ArrowGlacierBlock != nil { if c.ArrowGlacierBlock != nil {
banner += fmt.Sprintf(" - Arrow Glacier: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/arrow-glacier.md)\n", c.ArrowGlacierBlock) banner += fmt.Sprintf(" - Arrow Glacier: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/arrow-glacier.md)\n", c.ArrowGlacierBlock)
} }
if c.GrayGlacierBlock != nil { if c.GrayGlacierBlock != nil {
banner += fmt.Sprintf(" - Gray Glacier: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/gray-glacier.md)\n", c.GrayGlacierBlock) banner += fmt.Sprintf(" - Gray Glacier: #%-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/gray-glacier.md)\n", c.GrayGlacierBlock)
}
banner += fmt.Sprintf(" - Shanghai: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/shanghai.md)\n", c.ShanghaiTime)
if c.CancunBlock != nil {
banner += fmt.Sprintf(" - Cancun: %-8v\n", c.CancunBlock)
} }
banner += "\n" banner += "\n"
// Add a special section for the merge as it's non-obvious // Add a special section for the merge as it's non-obvious
if c.TerminalTotalDifficulty == nil { if c.TerminalTotalDifficulty == nil {
banner += "The Merge is not yet available for this network!\n" banner += "The Merge is not yet available for this network!\n"
banner += " - Hard-fork specification: https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md" banner += " - Hard-fork specification: https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md\n"
} else { } else {
banner += "Merge configured:\n" banner += "Merge configured:\n"
banner += " - Hard-fork specification: https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md\n" banner += " - Hard-fork specification: https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/paris.md\n"
banner += fmt.Sprintf(" - Network known to be merged: %v\n", c.TerminalTotalDifficultyPassed) banner += fmt.Sprintf(" - Network known to be merged: %v\n", c.TerminalTotalDifficultyPassed)
banner += fmt.Sprintf(" - Total terminal difficulty: %v\n", c.TerminalTotalDifficulty) banner += fmt.Sprintf(" - Total terminal difficulty: %v\n", c.TerminalTotalDifficulty)
banner += fmt.Sprintf(" - Merge netsplit block: %-8v", c.MergeNetsplitBlock) if c.MergeNetsplitBlock != nil {
banner += fmt.Sprintf(" - Merge netsplit block: #%-8v\n", c.MergeNetsplitBlock)
}
}
banner += "\n"
// Create a list of forks post-merge
banner += "Post-Merge hard forks (timestamp based):\n"
if c.ShanghaiTime != nil {
banner += fmt.Sprintf(" - Shanghai: @%-10v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/shanghai.md)\n", c.ShanghaiTime)
}
if c.CancunBlock != nil {
banner += fmt.Sprintf(" - Cancun: @%-10v\n", c.CancunBlock)
} }
return banner return banner
} }

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