diff options
Diffstat (limited to 'core/genesis.go')
| -rw-r--r-- | core/genesis.go | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/core/genesis.go b/core/genesis.go index 149e3d0..78249a7 100644 --- a/core/genesis.go +++ b/core/genesis.go @@ -26,13 +26,14 @@ import ( "github.com/ava-labs/go-ethereum/common" "github.com/ava-labs/go-ethereum/common/hexutil" + "github.com/ava-labs/go-ethereum/core" "github.com/ava-labs/go-ethereum/core/rawdb" "github.com/ava-labs/go-ethereum/core/state" + "github.com/ava-labs/go-ethereum/crypto" "github.com/ava-labs/go-ethereum/ethdb" "github.com/ava-labs/go-ethereum/log" "github.com/ava-labs/go-ethereum/params" "github.com/ava-labs/go-ethereum/rlp" - "github.com/ava-labs/go-ethereum/core" ) var errGenesisNoConfig = errors.New("genesis has no chain configuration") @@ -62,6 +63,16 @@ func (h storageJSON) MarshalText() ([]byte, error) { return hexutil.Bytes(h[:]).MarshalText() } +// GenesisMismatchError is raised when trying to overwrite an existing +// genesis block with an incompatible one. +type GenesisMismatchError struct { + Stored, New common.Hash +} + +func (e *GenesisMismatchError) Error() string { + return fmt.Sprintf("database contains incompatible genesis (have %x, new %x)", e.Stored, e.New) +} + // SetupGenesisBlock writes or updates the genesis block in db. // The block that will be used is: // @@ -76,6 +87,10 @@ func (h storageJSON) MarshalText() ([]byte, error) { // // The returned chain configuration is never nil. func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig, common.Hash, error) { + return SetupGenesisBlockWithOverride(db, genesis, nil) +} + +func SetupGenesisBlockWithOverride(db ethdb.Database, genesis *Genesis, overrideIstanbul *big.Int) (*params.ChainConfig, common.Hash, error) { if genesis != nil && genesis.Config == nil { return params.AllEthashProtocolChanges, common.Hash{}, errGenesisNoConfig } @@ -105,7 +120,7 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig // Ensure the stored genesis matches with the given one. hash := genesis.ToBlock(nil).Hash() if hash != stored { - return genesis.Config, hash, &core.GenesisMismatchError{stored, hash} + return genesis.Config, hash, &GenesisMismatchError{stored, hash} } block, err := genesis.Commit(db) if err != nil { @@ -118,12 +133,15 @@ func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig if genesis != nil { hash := genesis.ToBlock(nil).Hash() if hash != stored { - return genesis.Config, hash, &core.GenesisMismatchError{stored, hash} + return genesis.Config, hash, &GenesisMismatchError{stored, hash} } } // Get the existing chain configuration. newcfg := configOrDefault(genesis, stored) + if overrideIstanbul != nil { + newcfg.IstanbulBlock = overrideIstanbul + } storedcfg := rawdb.ReadChainConfig(db, stored) if storedcfg == nil { log.Warn("Found genesis block without chain config") @@ -222,7 +240,7 @@ func DeveloperGenesisBlock(period uint64, faucet common.Address) *Genesis { // Assemble and return the genesis with the precompiles and faucet pre-funded return &Genesis{ Config: &config, - ExtraData: append(append(make([]byte, 32), faucet[:]...), make([]byte, 65)...), + ExtraData: append(append(make([]byte, 32), faucet[:]...), make([]byte, crypto.SignatureLength)...), GasLimit: 6283185, Difficulty: big.NewInt(1), Alloc: map[common.Address]GenesisAccount{ |