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eth: remove DNS URLs

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This commit is contained in:
Felix Lange 2020-02-09 22:56:31 +01:00
parent 36d754cbc6
commit c2db1d8a12
3 changed files with 25 additions and 24 deletions
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10
eth/config.go
View file

@ -95,9 +95,9 @@ type Config struct {
NetworkId uint64 // Network ID to use for selecting peers to connect to
SyncMode downloader.SyncMode
// Discovery options
DisableDNSDiscovery bool
DiscoveryURLs []string
// This can be set to list of enrtree:// URLs which will be queried for
// for nodes to connect to.
DiscoveryURLs []string
NoPruning bool // Whether to disable pruning and flush everything to disk
NoPrefetch bool // Whether to disable prefetching and only load state on demand
@ -160,8 +160,8 @@ type Config struct {
CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
// Istanbul block override (TODO: remove after the fork)
OverrideIstanbul *big.Int
OverrideIstanbul *big.Int `toml:",omitempty"`
// MuirGlacier block override (TODO: remove after the fork)
OverrideMuirGlacier *big.Int
OverrideMuirGlacier *big.Int `toml:",omitempty"`
}

21
eth/discovery.go
View file

@ -17,23 +17,14 @@
package eth
import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/forkid"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/dnsdisc"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
)
var knownDNSNetworks = map[common.Hash]string{
params.MainnetGenesisHash: "enrtree://AMBMWDM3J6UY3M32TMMROUNLX6Y3YTLVC3DC6HN2AVG5NHNSAXDW6@all.mainnet.nodes.ethflare.xyz",
params.TestnetGenesisHash: "enrtree://AMBMWDM3J6UY3M32TMMROUNLX6Y3YTLVC3DC6HN2AVG5NHNSAXDW6@all.ropsten.nodes.ethflare.xyz",
params.RinkebyGenesisHash: "enrtree://AMBMWDM3J6UY3M32TMMROUNLX6Y3YTLVC3DC6HN2AVG5NHNSAXDW6@all.rinkeby.nodes.ethflare.xyz",
params.GoerliGenesisHash: "enrtree://AMBMWDM3J6UY3M32TMMROUNLX6Y3YTLVC3DC6HN2AVG5NHNSAXDW6@all.goerli.nodes.ethflare.xyz",
}
// ethEntry is the "eth" ENR entry which advertises eth protocol
// on the discovery network.
type ethEntry struct {
@ -74,17 +65,9 @@ func (eth *Ethereum) currentEthEntry() *ethEntry {
// setupDiscovery creates the node discovery source for the eth protocol.
func (eth *Ethereum) setupDiscovery(cfg *p2p.Config) (enode.Iterator, error) {
if cfg.NoDiscovery || eth.config.DisableDNSDiscovery {
if cfg.NoDiscovery || len(eth.config.DiscoveryURLs) == 0 {
return nil, nil
}
known := knownDNSNetworks[eth.blockchain.Genesis().Hash()]
urls := eth.config.DiscoveryURLs
if len(urls) == 0 {
if known == "" {
return nil, nil
}
urls = []string{known}
}
client := dnsdisc.NewClient(dnsdisc.Config{})
return client.NewIterator(urls...)
return client.NewIterator(eth.config.DiscoveryURLs...)
}

18
eth/gen_config.go
View file

@ -21,6 +21,7 @@ func (c Config) MarshalTOML() (interface{}, error) {
Genesis *core.Genesis `toml:",omitempty"`
NetworkId uint64
SyncMode downloader.SyncMode
DiscoveryURLs []string
NoPruning bool
NoPrefetch bool
Whitelist map[uint64]common.Hash `toml:"-"`
@ -49,11 +50,14 @@ func (c Config) MarshalTOML() (interface{}, error) {
RPCGasCap *big.Int `toml:",omitempty"`
Checkpoint *params.TrustedCheckpoint `toml:",omitempty"`
CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
OverrideIstanbul *big.Int `toml:",omitempty"`
OverrideMuirGlacier *big.Int `toml:",omitempty"`
}
var enc Config
enc.Genesis = c.Genesis
enc.NetworkId = c.NetworkId
enc.SyncMode = c.SyncMode
enc.DiscoveryURLs = c.DiscoveryURLs
enc.NoPruning = c.NoPruning
enc.NoPrefetch = c.NoPrefetch
enc.Whitelist = c.Whitelist
@ -82,6 +86,8 @@ func (c Config) MarshalTOML() (interface{}, error) {
enc.RPCGasCap = c.RPCGasCap
enc.Checkpoint = c.Checkpoint
enc.CheckpointOracle = c.CheckpointOracle
enc.OverrideIstanbul = c.OverrideIstanbul
enc.OverrideMuirGlacier = c.OverrideMuirGlacier
return &enc, nil
}
@ -91,6 +97,7 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
Genesis *core.Genesis `toml:",omitempty"`
NetworkId *uint64
SyncMode *downloader.SyncMode
DiscoveryURLs []string
NoPruning *bool
NoPrefetch *bool
Whitelist map[uint64]common.Hash `toml:"-"`
@ -119,6 +126,8 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
RPCGasCap *big.Int `toml:",omitempty"`
Checkpoint *params.TrustedCheckpoint `toml:",omitempty"`
CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
OverrideIstanbul *big.Int `toml:",omitempty"`
OverrideMuirGlacier *big.Int `toml:",omitempty"`
}
var dec Config
if err := unmarshal(&dec); err != nil {
@ -133,6 +142,9 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
if dec.SyncMode != nil {
c.SyncMode = *dec.SyncMode
}
if dec.DiscoveryURLs != nil {
c.DiscoveryURLs = dec.DiscoveryURLs
}
if dec.NoPruning != nil {
c.NoPruning = *dec.NoPruning
}
@ -217,5 +229,11 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
if dec.CheckpointOracle != nil {
c.CheckpointOracle = dec.CheckpointOracle
}
if dec.OverrideIstanbul != nil {
c.OverrideIstanbul = dec.OverrideIstanbul
}
if dec.OverrideMuirGlacier != nil {
c.OverrideMuirGlacier = dec.OverrideMuirGlacier
}
return nil
}