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params: Add Shanghai and Cancun blocks (#25305)
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* params: Add Shangai and Cancun blocks

* fix copy/paste error

Co-authored-by: Martin Holst Swende <martin@swende.se>

* fix typo in Shanghai name

Co-authored-by: Martin Holst Swende <martin@swende.se>
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@gballet @holiman
gballet and holiman authored Jul 19, 2022
1 parent e73e8bc commit 89b138c
Showing 1 changed file with 32 additions and 4 deletions.
36 changes: 32 additions & 4 deletions params/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -261,16 +261,16 @@ var (
//
// This configuration is intentionally not using keyed fields to force anyone
// adding flags to the config to also have to set these fields.
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), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil}
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), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, nil, new(EthashConfig), nil}

// AllCliqueProtocolChanges contains every protocol change (EIPs) introduced
// and accepted by the Ethereum core developers into the Clique consensus.
//
// This configuration is intentionally not using keyed fields to force anyone
// adding flags to the config to also have to set these fields.
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), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}}
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), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, nil, nil, nil, nil, &CliqueConfig{Period: 0, Epoch: 30000}}

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), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, new(EthashConfig), nil}
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), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), big.NewInt(0), nil, nil, nil, nil, new(EthashConfig), nil}
TestRules = TestChainConfig.Rules(new(big.Int), false)
)

Expand Down Expand Up @@ -361,6 +361,8 @@ type ChainConfig struct {
ArrowGlacierBlock *big.Int `json:"arrowGlacierBlock,omitempty"` // Eip-4345 (bomb delay) switch block (nil = no fork, 0 = already activated)
GrayGlacierBlock *big.Int `json:"grayGlacierBlock,omitempty"` // Eip-5133 (bomb delay) switch block (nil = no fork, 0 = already activated)
MergeNetsplitBlock *big.Int `json:"mergeNetsplitBlock,omitempty"` // Virtual fork after The Merge to use as a network splitter
ShanghaiBlock *big.Int `json:"shanghaiBlock,omitempty"` // Shanghai switch block (nil = no fork, 0 = already on shanghai)
CancunBlock *big.Int `json:"cancunBlock,omitempty"` // Cancun switch block (nil = no fork, 0 = already on cancun)

// TerminalTotalDifficulty is the amount of total difficulty reached by
// the network that triggers the consensus upgrade.
Expand Down Expand Up @@ -444,6 +446,12 @@ func (c *ChainConfig) String() string {
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)
}
if c.ShanghaiBlock != nil {
banner += fmt.Sprintf(" - Shanghai: %-8v (https://github.com/ethereum/execution-specs/blob/master/network-upgrades/mainnet-upgrades/shanghai.md)\n", c.ShanghaiBlock)
}
if c.CancunBlock != nil {
banner += fmt.Sprintf(" - Cancun: %-8v\n", c.CancunBlock)
}
banner += "\n"

// Add a special section for the merge as it's non-obvious
Expand Down Expand Up @@ -539,6 +547,16 @@ func (c *ChainConfig) IsTerminalPoWBlock(parentTotalDiff *big.Int, totalDiff *bi
return parentTotalDiff.Cmp(c.TerminalTotalDifficulty) < 0 && totalDiff.Cmp(c.TerminalTotalDifficulty) >= 0
}

// IsShanghai returns whether num is either equal to the Shanghai fork block or greater.
func (c *ChainConfig) IsShanghai(num *big.Int) bool {
return isForked(c.ShanghaiBlock, num)
}

// IsCancun returns whether num is either equal to the Cancun fork block or greater.
func (c *ChainConfig) IsCancun(num *big.Int) bool {
return isForked(c.CancunBlock, num)
}

// CheckCompatible checks whether scheduled fork transitions have been imported
// with a mismatching chain configuration.
func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *ConfigCompatError {
Expand Down Expand Up @@ -582,6 +600,8 @@ func (c *ChainConfig) CheckConfigForkOrder() error {
{name: "arrowGlacierBlock", block: c.ArrowGlacierBlock, optional: true},
{name: "grayGlacierBlock", block: c.GrayGlacierBlock, optional: true},
{name: "mergeNetsplitBlock", block: c.MergeNetsplitBlock, optional: true},
{name: "shanghaiBlock", block: c.ShanghaiBlock, optional: true},
{name: "cancunBlock", block: c.CancunBlock, optional: true},
} {
if lastFork.name != "" {
// Next one must be higher number
Expand Down Expand Up @@ -660,6 +680,12 @@ func (c *ChainConfig) checkCompatible(newcfg *ChainConfig, head *big.Int) *Confi
if isForkIncompatible(c.MergeNetsplitBlock, newcfg.MergeNetsplitBlock, head) {
return newCompatError("Merge netsplit fork block", c.MergeNetsplitBlock, newcfg.MergeNetsplitBlock)
}
if isForkIncompatible(c.ShanghaiBlock, newcfg.ShanghaiBlock, head) {
return newCompatError("Shanghai fork block", c.ShanghaiBlock, newcfg.ShanghaiBlock)
}
if isForkIncompatible(c.CancunBlock, newcfg.CancunBlock, head) {
return newCompatError("Cancun fork block", c.CancunBlock, newcfg.CancunBlock)
}
return nil
}

Expand Down Expand Up @@ -728,7 +754,7 @@ type Rules struct {
IsHomestead, IsEIP150, IsEIP155, IsEIP158 bool
IsByzantium, IsConstantinople, IsPetersburg, IsIstanbul bool
IsBerlin, IsLondon bool
IsMerge bool
IsMerge, IsShanghai, isCancun bool
}

// Rules ensures c's ChainID is not nil.
Expand All @@ -750,5 +776,7 @@ func (c *ChainConfig) Rules(num *big.Int, isMerge bool) Rules {
IsBerlin: c.IsBerlin(num),
IsLondon: c.IsLondon(num),
IsMerge: isMerge,
IsShanghai: c.IsShanghai(num),
isCancun: c.IsCancun(num),
}
}

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