diff options
| -rw-r--r-- | eth/backend.go | 36 |
1 files changed, 30 insertions, 6 deletions
diff --git a/eth/backend.go b/eth/backend.go index b57e9fd69..0e5d24429 100644 --- a/eth/backend.go +++ b/eth/backend.go @@ -3,6 +3,8 @@ package eth import ( "crypto/ecdsa" "fmt" + "io/ioutil" + "path" "strings" "github.com/ethereum/go-ethereum/core" @@ -25,7 +27,10 @@ var ( jsonlogger = ethlogger.NewJsonLogger() defaultBootNodes = []*discover.Node{ + // ETH/DEV cmd/bootnode discover.MustParseNode("enode://6cdd090303f394a1cac34ecc9f7cda18127eafa2a3a06de39f6d920b0e583e062a7362097c7c65ee490a758b442acd5c80c6fce4b148c6a391e946b45131365b@54.169.166.226:30303"), + // ETH/DEV cpp-ethereum (poc-8.ethdev.com) + discover.MustParseNode("enode://4a44599974518ea5b0f14c31c4463692ac0329cb84851f3435e6d1b18ee4eae4aa495f846a0fa1219bd58035671881d44423876e57db2abd57254d0197da0ebe@5.1.83.226:30303"), } ) @@ -77,6 +82,27 @@ func (cfg *Config) parseBootNodes() []*discover.Node { return ns } +func (cfg *Config) nodeKey() (*ecdsa.PrivateKey, error) { + // use explicit key from command line args if set + if cfg.NodeKey != nil { + return cfg.NodeKey, nil + } + // use persistent key if present + keyfile := path.Join(cfg.DataDir, "nodekey") + key, err := crypto.LoadECDSA(keyfile) + if err == nil { + return key, nil + } + // no persistent key, generate and store a new one + if key, err = crypto.GenerateKey(); err != nil { + return nil, fmt.Errorf("could not generate server key: %v", err) + } + if err := ioutil.WriteFile(keyfile, crypto.FromECDSA(key), 0600); err != nil { + logger.Errorln("could not persist nodekey: ", err) + } + return key, nil +} + type Ethereum struct { // Channel for shutting down the ethereum shutdownChan chan bool @@ -161,18 +187,16 @@ func New(config *Config) (*Ethereum, error) { insertChain := eth.chainManager.InsertChain eth.blockPool = NewBlockPool(hasBlock, insertChain, ezp.Verify) + netprv, err := config.nodeKey() + if err != nil { + return nil, err + } ethProto := EthProtocol(eth.txPool, eth.chainManager, eth.blockPool) protocols := []p2p.Protocol{ethProto} if config.Shh { protocols = append(protocols, eth.whisper.Protocol()) } - netprv := config.NodeKey - if netprv == nil { - if netprv, err = crypto.GenerateKey(); err != nil { - return nil, fmt.Errorf("could not generate server key: %v", err) - } - } eth.net = &p2p.Server{ PrivateKey: netprv, Name: config.Name, |