cmd, core, params: add --rinkeby flag for fast connectivity

cmd/geth/main.go

@@ -133,7 +133,8 @@ func init() {
 		utils.PreloadJSFlag,
 		utils.WhisperEnabledFlag,
 		utils.DevModeFlag,
-		utils.TestNetFlag,
+		utils.TestnetFlag,
+		utils.RinkebyFlag,
 		utils.VMEnableDebugFlag,
 		utils.NetworkIdFlag,
 		utils.RPCCORSDomainFlag,

cmd/geth/usage.go

@@ -69,7 +69,8 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.KeyStoreDirFlag,
 			utils.NoUSBFlag,
 			utils.NetworkIdFlag,
-			utils.TestNetFlag,
+			utils.TestnetFlag,
+			utils.RinkebyFlag,
 			utils.DevModeFlag,
 			utils.SyncModeFlag,
 			utils.EthStatsURLFlag,

cmd/utils/flags.go

@@ -150,13 +150,17 @@ var (
 	}
 	NetworkIdFlag = cli.Uint64Flag{
 		Name:  "networkid",
-		Usage: "Network identifier (integer, 1=Frontier, 2=Morden (disused), 3=Ropsten)",
+		Usage: "Network identifier (integer, 1=Frontier, 2=Morden (disused), 3=Ropsten, 4=Rinkeby)",
 		Value: eth.DefaultConfig.NetworkId,
 	}
-	TestNetFlag = cli.BoolFlag{
+	TestnetFlag = cli.BoolFlag{
 		Name:  "testnet",
 		Usage: "Ropsten network: pre-configured proof-of-work test network",
 	}
+	RinkebyFlag = cli.BoolFlag{
+		Name:  "rinkeby",
+		Usage: "Rinkeby network: pre-configured proof-of-authority test network",
+	}
 	DevModeFlag = cli.BoolFlag{
 		Name:  "dev",
 		Usage: "Developer mode: pre-configured private network with several debugging flags",
@@ -415,10 +419,12 @@ var (
 // the a subdirectory of the specified datadir will be used.
 func MakeDataDir(ctx *cli.Context) string {
 	if path := ctx.GlobalString(DataDirFlag.Name); path != "" {
-		// TODO: choose a different location outside of the regular datadir.
+		if ctx.GlobalBool(TestnetFlag.Name) {
-		if ctx.GlobalBool(TestNetFlag.Name) {
 			return filepath.Join(path, "testnet")
 		}
+		if ctx.GlobalBool(RinkebyFlag.Name) {
+			return filepath.Join(path, "rinkeby")
+		}
 		return path
 	}
 	Fatalf("Cannot determine default data directory, please set manually (--datadir)")
@@ -462,10 +468,13 @@ func setNodeUserIdent(ctx *cli.Context, cfg *node.Config) {
 // flags, reverting to pre-configured ones if none have been specified.
 func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
 	urls := params.MainnetBootnodes
-	if ctx.GlobalIsSet(BootnodesFlag.Name) {
+	switch {
+	case ctx.GlobalIsSet(BootnodesFlag.Name):
 		urls = strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",")
-	} else if ctx.GlobalBool(TestNetFlag.Name) {
+	case ctx.GlobalBool(TestnetFlag.Name):
 		urls = params.TestnetBootnodes
+	case ctx.GlobalBool(RinkebyFlag.Name):
+		urls = params.RinkebyBootnodes
 	}
 
 	cfg.BootstrapNodes = make([]*discover.Node, 0, len(urls))
@@ -483,9 +492,12 @@ func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
 // flags, reverting to pre-configured ones if none have been specified.
 func setBootstrapNodesV5(ctx *cli.Context, cfg *p2p.Config) {
 	urls := params.DiscoveryV5Bootnodes
-	if ctx.GlobalIsSet(BootnodesFlag.Name) {
+	switch {
+	case ctx.GlobalIsSet(BootnodesFlag.Name):
 		urls = strings.Split(ctx.GlobalString(BootnodesFlag.Name), ",")
-	} else if cfg.BootstrapNodesV5 == nil {
+	case ctx.GlobalBool(RinkebyFlag.Name):
+		urls = params.RinkebyV5Bootnodes
+	case cfg.BootstrapNodesV5 != nil:
 		return // already set, don't apply defaults.
 	}
 
@@ -723,8 +735,10 @@ func SetNodeConfig(ctx *cli.Context, cfg *node.Config) {
 		cfg.DataDir = ctx.GlobalString(DataDirFlag.Name)
 	case ctx.GlobalBool(DevModeFlag.Name):
 		cfg.DataDir = filepath.Join(os.TempDir(), "ethereum_dev_mode")
-	case ctx.GlobalBool(TestNetFlag.Name):
+	case ctx.GlobalBool(TestnetFlag.Name):
 		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "testnet")
+	case ctx.GlobalBool(RinkebyFlag.Name):
+		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "rinkeby")
 	}
 
 	if ctx.GlobalIsSet(KeyStoreDirFlag.Name) {
@@ -783,7 +797,7 @@ func checkExclusive(ctx *cli.Context, flags ...cli.Flag) {
 // SetEthConfig applies eth-related command line flags to the config.
 func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 	// Avoid conflicting network flags
-	checkExclusive(ctx, DevModeFlag, TestNetFlag)
+	checkExclusive(ctx, DevModeFlag, TestnetFlag, RinkebyFlag)
 	checkExclusive(ctx, FastSyncFlag, LightModeFlag, SyncModeFlag)
 
 	ks := stack.AccountManager().Backends(keystore.KeyStoreType)[0].(*keystore.KeyStore)
@@ -835,13 +849,18 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 		cfg.EnablePreimageRecording = ctx.GlobalBool(VMEnableDebugFlag.Name)
 	}
 
-	// Override any default configs for --dev and --testnet.
+	// Override any default configs for hard coded networks.
 	switch {
-	case ctx.GlobalBool(TestNetFlag.Name):
+	case ctx.GlobalBool(TestnetFlag.Name):
 		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
 			cfg.NetworkId = 3
 		}
 		cfg.Genesis = core.DefaultTestnetGenesisBlock()
+	case ctx.GlobalBool(RinkebyFlag.Name):
+		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
+			cfg.NetworkId = 4
+		}
+		cfg.Genesis = core.DefaultRinkebyGenesisBlock()
 	case ctx.GlobalBool(DevModeFlag.Name):
 		cfg.Genesis = core.DevGenesisBlock()
 		if !ctx.GlobalIsSet(GasPriceFlag.Name) {
@@ -928,8 +947,10 @@ func MakeChainDatabase(ctx *cli.Context, stack *node.Node) ethdb.Database {
 func MakeGenesis(ctx *cli.Context) *core.Genesis {
 	var genesis *core.Genesis
 	switch {
-	case ctx.GlobalBool(TestNetFlag.Name):
+	case ctx.GlobalBool(TestnetFlag.Name):
 		genesis = core.DefaultTestnetGenesisBlock()
+	case ctx.GlobalBool(RinkebyFlag.Name):
+		genesis = core.DefaultRinkebyGenesisBlock()
 	case ctx.GlobalBool(DevModeFlag.Name):
 		genesis = core.DevGenesisBlock()
 	}

core/genesis.go

@@ -278,6 +278,18 @@ func DefaultTestnetGenesisBlock() *Genesis {
 	}
 }
 
+// DefaultRinkebyGenesisBlock returns the Rinkeby network genesis block.
+func DefaultRinkebyGenesisBlock() *Genesis {
+	return &Genesis{
+		Config:     params.RinkebyChainConfig,
+		Timestamp:  1492009146,
+		ExtraData:  hexutil.MustDecode("0x52657370656374206d7920617574686f7269746168207e452e436172746d616e42eb768f2244c8811c63729a21a3569731535f067ffc57839b00206d1ad20c69a1981b489f772031b279182d99e65703f0076e4812653aab85fca0f00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"),
+		GasLimit:   4700000,
+		Difficulty: big.NewInt(1),
+		Alloc:      decodePrealloc(rinkebyAllocData),
+	}
+}
+
 // DevGenesisBlock returns the 'geth --dev' genesis block.
 func DevGenesisBlock() *Genesis {
 	return &Genesis{

params/bootnodes.go

@@ -39,6 +39,18 @@ var TestnetBootnodes = []string{
 	"enode://20c9ad97c081d63397d7b685a412227a40e23c8bdc6688c6f37e97cfbc22d2b4d1db1510d8f61e6a8866ad7f0e17c02b14182d37ea7c3c8b9c2683aeb6b733a1@52.169.14.227:30303", // IE
 }
 
+// RinkebyBootnodes are the enode URLs of the P2P bootstrap nodes running on the
+// Rinkeby test network.
+var RinkebyBootnodes = []string{
+	"enode://a24ac7c5484ef4ed0c5eb2d36620ba4e4aa13b8c84684e1b4aab0cebea2ae45cb4d375b77eab56516d34bfbd3c1a833fc51296ff084b770b94fb9028c4d25ccf@52.169.42.101:30303", // IE
+}
+
+// RinkebyV5Bootnodes are the enode URLs of the P2P bootstrap nodes running on the
+// Rinkeby test network for the experimental RLPx v5 topic-discovery network.
+var RinkebyV5Bootnodes = []string{
+	"enode://a24ac7c5484ef4ed0c5eb2d36620ba4e4aa13b8c84684e1b4aab0cebea2ae45cb4d375b77eab56516d34bfbd3c1a833fc51296ff084b770b94fb9028c4d25ccf@52.169.42.101:30303?discport=30304", // IE
+}
+
 // DiscoveryV5Bootnodes are the enode URLs of the P2P bootstrap nodes for the
 // experimental RLPx v5 topic-discovery network.
 var DiscoveryV5Bootnodes = []string{

params/config.go

@@ -37,7 +37,7 @@ var (
 		Ethash:         new(EthashConfig),
 	}
 
-	// TestnetChainConfig contains the chain parameters to run a node on the ropsten test network.
+	// TestnetChainConfig contains the chain parameters to run a node on the Ropsten test network.
 	TestnetChainConfig = &ChainConfig{
 		ChainId:        big.NewInt(3),
 		HomesteadBlock: big.NewInt(0),
@@ -50,6 +50,22 @@ var (
 		Ethash:         new(EthashConfig),
 	}
 
+	// RinkebyChainConfig contains the chain parameters to run a node on the Rinkeby test network.
+	RinkebyChainConfig = &ChainConfig{
+		ChainId:        big.NewInt(4),
+		HomesteadBlock: big.NewInt(1),
+		DAOForkBlock:   nil,
+		DAOForkSupport: true,
+		EIP150Block:    big.NewInt(2),
+		EIP150Hash:     common.HexToHash("0x9b095b36c15eaf13044373aef8ee0bd3a382a5abb92e402afa44b8249c3a90e9"),
+		EIP155Block:    big.NewInt(3),
+		EIP158Block:    big.NewInt(3),
+		Clique: &CliqueConfig{
+			Period: 15,
+			Epoch:  30000,
+		},
+	}
+
 	// AllProtocolChanges contains every protocol change (EIPs)
 	// introduced and accepted by the Ethereum core developers.
 	// TestChainConfig is like AllProtocolChanges but has chain ID 1.