Update Go Callisto from upstream

.gitignore

@@ -38,4 +38,4 @@ profile.cov
 /dashboard/assets/flow-typed
 /dashboard/assets/node_modules
 /dashboard/assets/stats.json
-/dashboard/assets/public/bundle.js
+/dashboard/assets/bundle.js

.travis.yml

@@ -40,6 +40,7 @@ matrix:
     - os: osx
       go: 1.9.x
       script:
+        - unset -f cd # workaround for https://github.com/travis-ci/travis-ci/issues/8703
         - brew update
         - brew install caskroom/cask/brew-cask
         - brew cask install osxfuse

Makefile

@@ -45,9 +45,13 @@ clean:
 
 devtools:
 	env GOBIN= go get -u golang.org/x/tools/cmd/stringer
-	env GOBIN= go get -u github.com/jteeuwen/go-bindata/go-bindata
+	env GOBIN= go get -u github.com/kevinburke/go-bindata/go-bindata
 	env GOBIN= go get -u github.com/fjl/gencodec
+	env GOBIN= go get -u github.com/golang/protobuf/protoc-gen-go
 	env GOBIN= go install ./cmd/abigen
+	@type "npm" 2> /dev/null || echo 'Please install node.js and npm'
+	@type "solc" 2> /dev/null || echo 'Please install solc'
+	@type "protoc" 2> /dev/null || echo 'Please install protoc'
 
 # Cross Compilation Targets (xgo)
 

accounts/usbwallet/internal/trezor/messages.proto

@@ -2,6 +2,8 @@
 //   https://github.com/trezor/trezor-common/blob/master/protob/messages.proto
 // dated 28.07.2017, commit dd8ec3231fb5f7992360aff9bdfe30bb58130f4b.
 
+syntax = "proto2";
+
 /**
  * Messages for TREZOR communication
  */

accounts/usbwallet/internal/trezor/trezor.go

@@ -18,7 +18,7 @@
 // wallets. The wire protocol spec can be found on the SatoshiLabs website:
 // https://doc.satoshilabs.com/trezor-tech/api-protobuf.html
 
-//go:generate protoc --go_out=Mgoogle/protobuf/descriptor.proto=github.com/golang/protobuf/protoc-gen-go/descriptor,import_path=trezor:. types.proto messages.proto
+//go:generate protoc --go_out=import_path=trezor:. types.proto messages.proto
 
 // Package trezor contains the wire protocol wrapper in Go.
 package trezor

accounts/usbwallet/internal/trezor/types.proto

@@ -2,6 +2,8 @@
 //   https://github.com/trezor/trezor-common/blob/master/protob/types.proto
 // dated 28.07.2017, commit dd8ec3231fb5f7992360aff9bdfe30bb58130f4b.
 
+syntax = "proto2";
+
 /**
  * Types for TREZOR communication
  *

cmd/ethkey/generate.go

@@ -1,8 +1,23 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
 package main
 
 import (
 	"crypto/ecdsa"
-	"crypto/rand"
 	"fmt"
 	"io/ioutil"
 	"os"
@@ -26,16 +41,16 @@ var commandGenerate = cli.Command{
 	ArgsUsage: "[ <keyfile> ]",
 	Description: `
 Generate a new keyfile.
-If you want to use an existing private key to use in the keyfile, it can be
+
-specified by setting --privatekey with the location of the file containing the
+If you want to encrypt an existing private key, it can be specified by setting
-private key.`,
+--privatekey with the location of the file containing the private key.
+`,
 	Flags: []cli.Flag{
 		passphraseFlag,
 		jsonFlag,
 		cli.StringFlag{
 			Name:  "privatekey",
-			Usage: "the file from where to read the private key to " +
+			Usage: "file containing a raw private key to encrypt",
-				"generate a keyfile for",
 		},
 	},
 	Action: func(ctx *cli.Context) error {
@@ -51,32 +66,19 @@ private key.`,
 		}
 
 		var privateKey *ecdsa.PrivateKey
-
+		var err error
-		// First check if a private key file is provided.
+		if file := ctx.String("privatekey"); file != "" {
-		privateKeyFile := ctx.String("privatekey")
+			// Load private key from file.
-		if privateKeyFile != "" {
+			privateKey, err = crypto.LoadECDSA(file)
-			privateKeyBytes, err := ioutil.ReadFile(privateKeyFile)
 			if err != nil {
-				utils.Fatalf("Failed to read the private key file '%s': %v",
+				utils.Fatalf("Can't load private key: %v", err)
-					privateKeyFile, err)
 			}
-
+		} else {
-			pk, err := crypto.HexToECDSA(string(privateKeyBytes))
-			if err != nil {
-				utils.Fatalf(
-					"Could not construct ECDSA private key from file content: %v",
-					err)
-			}
-			privateKey = pk
-		}
-
 			// If not loaded, generate random.
-		if privateKey == nil {
+			privateKey, err = crypto.GenerateKey()
-			pk, err := ecdsa.GenerateKey(crypto.S256(), rand.Reader)
 			if err != nil {
 				utils.Fatalf("Failed to generate random private key: %v", err)
 			}
-			privateKey = pk
 		}
 
 		// Create the keyfile object with a random UUID.
@@ -89,8 +91,7 @@ private key.`,
 
 		// Encrypt key with passphrase.
 		passphrase := getPassPhrase(ctx, true)
-		keyjson, err := keystore.EncryptKey(key, passphrase,
+		keyjson, err := keystore.EncryptKey(key, passphrase, keystore.StandardScryptN, keystore.StandardScryptP)
-			keystore.StandardScryptN, keystore.StandardScryptP)
 		if err != nil {
 			utils.Fatalf("Error encrypting key: %v", err)
 		}
@@ -110,7 +111,7 @@ private key.`,
 		if ctx.Bool(jsonFlag.Name) {
 			mustPrintJSON(out)
 		} else {
-			fmt.Println("Address:       ", out.Address)
+			fmt.Println("Address:", out.Address)
 		}
 		return nil
 	},

cmd/ethkey/inspect.go

@@ -23,6 +23,7 @@ var commandInspect = cli.Command{
 	ArgsUsage: "<keyfile>",
 	Description: `
 Print various information about the keyfile.
+
 Private key information can be printed by using the --private flag;
 make sure to use this feature with great caution!`,
 	Flags: []cli.Flag{

cmd/ethkey/main.go

@@ -28,30 +28,11 @@ const (
 	defaultKeyfileName = "keyfile.json"
 )
 
-var (
+// Git SHA1 commit hash of the release (set via linker flags)
-	gitCommit = "" // Git SHA1 commit hash of the release (set via linker flags)
+var gitCommit = ""
 
-	app *cli.App // the main app instance
+var app *cli.App
-)
 
-var ( // Commonly used command line flags.
-	passphraseFlag = cli.StringFlag{
-		Name:  "passwordfile",
-		Usage: "the file that contains the passphrase for the keyfile",
-	}
-
-	jsonFlag = cli.BoolFlag{
-		Name:  "json",
-		Usage: "output JSON instead of human-readable format",
-	}
-
-	messageFlag = cli.StringFlag{
-		Name:  "message",
-		Usage: "the file that contains the message to sign/verify",
-	}
-)
-
-// Configure the app instance.
 func init() {
 	app = utils.NewApp(gitCommit, "an Ethereum key manager")
 	app.Commands = []cli.Command{
@@ -62,6 +43,22 @@ func init() {
 	}
 }
 
+// Commonly used command line flags.
+var (
+	passphraseFlag = cli.StringFlag{
+		Name:  "passwordfile",
+		Usage: "the file that contains the passphrase for the keyfile",
+	}
+	jsonFlag = cli.BoolFlag{
+		Name:  "json",
+		Usage: "output JSON instead of human-readable format",
+	}
+	messageFlag = cli.StringFlag{
+		Name:  "message",
+		Usage: "the file that contains the message to sign/verify",
+	}
+)
+
 func main() {
 	if err := app.Run(os.Args); err != nil {
 		fmt.Fprintln(os.Stderr, err)

cmd/ethkey/message.go

@@ -1,11 +1,25 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
 package main
 
 import (
 	"encoding/hex"
 	"fmt"
 	"io/ioutil"
-	"os"
-	"strings"
 
 	"github.com/EthereumCommonwealth/go-callisto/accounts/keystore"
 	"github.com/EthereumCommonwealth/go-callisto/cmd/utils"
@@ -18,26 +32,33 @@ type outputSign struct {
 	Signature string
 }
 
+var msgfileFlag = cli.StringFlag{
+	Name:  "msgfile",
+	Usage: "file containing the message to sign/verify",
+}
+
 var commandSignMessage = cli.Command{
 	Name:      "signmessage",
 	Usage:     "sign a message",
-	ArgsUsage: "<keyfile> <message/file>",
+	ArgsUsage: "<keyfile> <message>",
 	Description: `
 Sign the message with a keyfile.
-It is possible to refer to a file containing the message.`,
+
+To sign a message contained in a file, use the --msgfile flag.
+`,
 	Flags: []cli.Flag{
 		passphraseFlag,
 		jsonFlag,
+		msgfileFlag,
 	},
 	Action: func(ctx *cli.Context) error {
-		keyfilepath := ctx.Args().First()
+		message := getMessage(ctx, 1)
-		message := []byte(ctx.Args().Get(1))
 
 		// Load the keyfile.
+		keyfilepath := ctx.Args().First()
 		keyjson, err := ioutil.ReadFile(keyfilepath)
 		if err != nil {
-			utils.Fatalf("Failed to read the keyfile at '%s': %v",
+			utils.Fatalf("Failed to read the keyfile at '%s': %v", keyfilepath, err)
-				keyfilepath, err)
 		}
 
 		// Decrypt key with passphrase.
@@ -47,29 +68,15 @@ It is possible to refer to a file containing the message.`,
 			utils.Fatalf("Error decrypting key: %v", err)
 		}
 
-		if len(message) == 0 {
-			utils.Fatalf("A message must be provided")
-		}
-		// Read message if file.
-		if _, err := os.Stat(string(message)); err == nil {
-			message, err = ioutil.ReadFile(string(message))
-			if err != nil {
-				utils.Fatalf("Failed to read the message file: %v", err)
-			}
-		}
-
 		signature, err := crypto.Sign(signHash(message), key.PrivateKey)
 		if err != nil {
 			utils.Fatalf("Failed to sign message: %v", err)
 		}
-
+		out := outputSign{Signature: hex.EncodeToString(signature)}
-		out := outputSign{
-			Signature: hex.EncodeToString(signature),
-		}
 		if ctx.Bool(jsonFlag.Name) {
 			mustPrintJSON(out)
 		} else {
-			fmt.Println("Signature: ", out.Signature)
+			fmt.Println("Signature:", out.Signature)
 		}
 		return nil
 	},
@@ -84,53 +91,40 @@ type outputVerify struct {
 var commandVerifyMessage = cli.Command{
 	Name:      "verifymessage",
 	Usage:     "verify the signature of a signed message",
-	ArgsUsage: "<address> <signature> <message/file>",
+	ArgsUsage: "<address> <signature> <message>",
 	Description: `
 Verify the signature of the message.
 It is possible to refer to a file containing the message.`,
 	Flags: []cli.Flag{
 		jsonFlag,
+		msgfileFlag,
 	},
 	Action: func(ctx *cli.Context) error {
 		addressStr := ctx.Args().First()
 		signatureHex := ctx.Args().Get(1)
-		message := []byte(ctx.Args().Get(2))
+		message := getMessage(ctx, 2)
 
-		// Determine whether it is a keyfile, public key or address.
 		if !common.IsHexAddress(addressStr) {
 			utils.Fatalf("Invalid address: %s", addressStr)
 		}
 		address := common.HexToAddress(addressStr)
-
 		signature, err := hex.DecodeString(signatureHex)
 		if err != nil {
 			utils.Fatalf("Signature encoding is not hexadecimal: %v", err)
 		}
 
-		if len(message) == 0 {
-			utils.Fatalf("A message must be provided")
-		}
-		// Read message if file.
-		if _, err := os.Stat(string(message)); err == nil {
-			message, err = ioutil.ReadFile(string(message))
-			if err != nil {
-				utils.Fatalf("Failed to read the message file: %v", err)
-			}
-		}
-
 		recoveredPubkey, err := crypto.SigToPub(signHash(message), signature)
 		if err != nil || recoveredPubkey == nil {
 			utils.Fatalf("Signature verification failed: %v", err)
 		}
 		recoveredPubkeyBytes := crypto.FromECDSAPub(recoveredPubkey)
 		recoveredAddress := crypto.PubkeyToAddress(*recoveredPubkey)
-
 		success := address == recoveredAddress
 
 		out := outputVerify{
 			Success:            success,
 			RecoveredPublicKey: hex.EncodeToString(recoveredPubkeyBytes),
-			RecoveredAddress:   strings.ToLower(recoveredAddress.Hex()),
+			RecoveredAddress:   recoveredAddress.Hex(),
 		}
 		if ctx.Bool(jsonFlag.Name) {
 			mustPrintJSON(out)
@@ -140,9 +134,26 @@ It is possible to refer to a file containing the message.`,
 			} else {
 				fmt.Println("Signature verification failed!")
 			}
-			fmt.Println("Recovered public key: ", out.RecoveredPublicKey)
+			fmt.Println("Recovered public key:", out.RecoveredPublicKey)
-			fmt.Println("Recovered address: ", out.RecoveredAddress)
+			fmt.Println("Recovered address:", out.RecoveredAddress)
 		}
 		return nil
 	},
 }
+
+func getMessage(ctx *cli.Context, msgarg int) []byte {
+	if file := ctx.String("msgfile"); file != "" {
+		if len(ctx.Args()) > msgarg {
+			utils.Fatalf("Can't use --msgfile and message argument at the same time.")
+		}
+		msg, err := ioutil.ReadFile(file)
+		if err != nil {
+			utils.Fatalf("Can't read message file: %v", err)
+		}
+		return msg
+	} else if len(ctx.Args()) == msgarg+1 {
+		return []byte(ctx.Args().Get(msgarg))
+	}
+	utils.Fatalf("Invalid number of arguments: want %d, got %d", msgarg+1, len(ctx.Args()))
+	return nil
+}

cmd/ethkey/message_test.go

@@ -0,0 +1,70 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestMessageSignVerify(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "ethkey-test")
+	if err != nil {
+		t.Fatal("Can't create temporary directory:", err)
+	}
+	defer os.RemoveAll(tmpdir)
+
+	keyfile := filepath.Join(tmpdir, "the-keyfile")
+	message := "test message"
+
+	// Create the key.
+	generate := runEthkey(t, "generate", keyfile)
+	generate.Expect(`
+!! Unsupported terminal, password will be echoed.
+Passphrase: {{.InputLine "foobar"}}
+Repeat passphrase: {{.InputLine "foobar"}}
+`)
+	_, matches := generate.ExpectRegexp(`Address: (0x[0-9a-fA-F]{40})\n`)
+	address := matches[1]
+	generate.ExpectExit()
+
+	// Sign a message.
+	sign := runEthkey(t, "signmessage", keyfile, message)
+	sign.Expect(`
+!! Unsupported terminal, password will be echoed.
+Passphrase: {{.InputLine "foobar"}}
+`)
+	_, matches = sign.ExpectRegexp(`Signature: ([0-9a-f]+)\n`)
+	signature := matches[1]
+	sign.ExpectExit()
+
+	// Verify the message.
+	verify := runEthkey(t, "verifymessage", address, signature, message)
+	_, matches = verify.ExpectRegexp(`
+Signature verification successful!
+Recovered public key: [0-9a-f]+
+Recovered address: (0x[0-9a-fA-F]{40})
+`)
+	recovered := matches[1]
+	verify.ExpectExit()
+
+	if recovered != address {
+		t.Error("recovered address doesn't match generated key")
+	}
+}

cmd/ethkey/run_test.go

@@ -0,0 +1,54 @@
+// Copyright 2017 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/docker/docker/pkg/reexec"
+	"github.com/EthereumCommonwealth/go-callisto/internal/cmdtest"
+)
+
+type testEthkey struct {
+	*cmdtest.TestCmd
+}
+
+// spawns ethkey with the given command line args.
+func runEthkey(t *testing.T, args ...string) *testEthkey {
+	tt := new(testEthkey)
+	tt.TestCmd = cmdtest.NewTestCmd(t, tt)
+	tt.Run("ethkey-test", args...)
+	return tt
+}
+
+func TestMain(m *testing.M) {
+	// Run the app if we've been exec'd as "ethkey-test" in runEthkey.
+	reexec.Register("ethkey-test", func() {
+		if err := app.Run(os.Args); err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			os.Exit(1)
+		}
+		os.Exit(0)
+	})
+	// check if we have been reexec'd
+	if reexec.Init() {
+		return
+	}
+	os.Exit(m.Run())
+}

cmd/faucet/faucet.go

@@ -18,6 +18,7 @@
 package main
 
 //go:generate go-bindata -nometadata -o website.go faucet.html
+//go:generate gofmt -w -s website.go
 
 import (
 	"bytes"

cmd/faucet/website.go

@@ -1,7 +1,6 @@
-// Code generated by go-bindata.
+// Code generated by go-bindata. DO NOT EDIT.
 // sources:
 // faucet.html
-// DO NOT EDIT!
 
 package main
 
@@ -92,8 +91,8 @@ func faucetHtml() (*asset, error) {
 // It returns an error if the asset could not be found or
 // could not be loaded.
 func Asset(name string) ([]byte, error) {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	if f, ok := _bindata[cannonicalName]; ok {
+	if f, ok := _bindata[canonicalName]; ok {
 		a, err := f()
 		if err != nil {
 			return nil, fmt.Errorf("Asset %s can't read by error: %v", name, err)
@@ -118,8 +117,8 @@ func MustAsset(name string) []byte {
 // It returns an error if the asset could not be found or
 // could not be loaded.
 func AssetInfo(name string) (os.FileInfo, error) {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	if f, ok := _bindata[cannonicalName]; ok {
+	if f, ok := _bindata[canonicalName]; ok {
 		a, err := f()
 		if err != nil {
 			return nil, fmt.Errorf("AssetInfo %s can't read by error: %v", name, err)
@@ -159,8 +158,8 @@ var _bindata = map[string]func() (*asset, error){
 func AssetDir(name string) ([]string, error) {
 	node := _bintree
 	if len(name) != 0 {
-		cannonicalName := strings.Replace(name, "\\", "/", -1)
+		canonicalName := strings.Replace(name, "\\", "/", -1)
-		pathList := strings.Split(cannonicalName, "/")
+		pathList := strings.Split(canonicalName, "/")
 		for _, p := range pathList {
 			node = node.Children[p]
 			if node == nil {
@@ -205,11 +204,7 @@ func RestoreAsset(dir, name string) error {
 	if err != nil {
 		return err
 	}
-	err = os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
+	return os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
-	if err != nil {
-		return err
-	}
-	return nil
 }
 
 // RestoreAssets restores an asset under the given directory recursively
@@ -230,6 +225,6 @@ func RestoreAssets(dir, name string) error {
 }
 
 func _filePath(dir, name string) string {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
+	return filepath.Join(append([]string{dir}, strings.Split(canonicalName, "/")...)...)
 }

cmd/geth/config.go

@@ -158,7 +158,7 @@ func makeFullNode(ctx *cli.Context) *node.Node {
 	utils.RegisterEthService(stack, &cfg.Eth)
 
 	if ctx.GlobalBool(utils.DashboardEnabledFlag.Name) {
-		utils.RegisterDashboardService(stack, &cfg.Dashboard)
+		utils.RegisterDashboardService(stack, &cfg.Dashboard, gitCommit)
 	}
 	// Whisper must be explicitly enabled by specifying at least 1 whisper flag or in dev mode
 	shhEnabled := enableWhisper(ctx)

cmd/geth/main.go

@@ -278,9 +278,12 @@ func startNode(ctx *cli.Context, stack *node.Node) {
 	// Start auxiliary services if enabled
 	if ctx.GlobalBool(utils.MiningEnabledFlag.Name) || ctx.GlobalBool(utils.DeveloperFlag.Name) {
 		// Mining only makes sense if a full Ethereum node is running
+		if ctx.GlobalBool(utils.LightModeFlag.Name) || ctx.GlobalString(utils.SyncModeFlag.Name) == "light" {
+			utils.Fatalf("Light clients do not support mining")
+		}
 		var ethereum *eth.Ethereum
 		if err := stack.Service(&ethereum); err != nil {
-			utils.Fatalf("ethereum service not running: %v", err)
+			utils.Fatalf("Ethereum service not running: %v", err)
 		}
 		// Use a reduced number of threads if requested
 		if threads := ctx.GlobalInt(utils.MinerThreadsFlag.Name); threads > 0 {

cmd/utils/flags.go

@@ -31,6 +31,7 @@ import (
 	"github.com/EthereumCommonwealth/go-callisto/accounts"
 	"github.com/EthereumCommonwealth/go-callisto/accounts/keystore"
 	"github.com/EthereumCommonwealth/go-callisto/common"
+	"github.com/EthereumCommonwealth/go-callisto/common/fdlimit"
 	"github.com/EthereumCommonwealth/go-callisto/consensus"
 	"github.com/EthereumCommonwealth/go-callisto/consensus/clique"
 	"github.com/EthereumCommonwealth/go-callisto/consensus/ethash"
@@ -721,10 +722,10 @@ func setIPC(ctx *cli.Context, cfg *node.Config) {
 // makeDatabaseHandles raises out the number of allowed file handles per process
 // for Geth and returns half of the allowance to assign to the database.
 func makeDatabaseHandles() int {
-	if err := raiseFdLimit(2048); err != nil {
+	if err := fdlimit.Raise(2048); err != nil {
 		Fatalf("Failed to raise file descriptor allowance: %v", err)
 	}
-	limit, err := getFdLimit()
+	limit, err := fdlimit.Current()
 	if err != nil {
 		Fatalf("Failed to retrieve file descriptor allowance: %v", err)
 	}
@@ -1103,9 +1104,9 @@ func RegisterEthService(stack *node.Node, cfg *eth.Config) {
 }
 
 // RegisterDashboardService adds a dashboard to the stack.
-func RegisterDashboardService(stack *node.Node, cfg *dashboard.Config) {
+func RegisterDashboardService(stack *node.Node, cfg *dashboard.Config, commit string) {
 	stack.Register(func(ctx *node.ServiceContext) (node.Service, error) {
-		return dashboard.New(cfg)
+		return dashboard.New(cfg, commit)
 	})
 }
 

common/fdlimit/fdlimit_freebsd.go

@@ -16,7 +16,7 @@
 
 // +build freebsd
 
-package utils
+package fdlimit
 
 import "syscall"
 
@@ -24,9 +24,9 @@ import "syscall"
 // but Rlimit fields have type int64 on FreeBSD so it needs
 // an extra conversion.
 
-// raiseFdLimit tries to maximize the file descriptor allowance of this process
+// Raise tries to maximize the file descriptor allowance of this process
 // to the maximum hard-limit allowed by the OS.
-func raiseFdLimit(max uint64) error {
+func Raise(max uint64) error {
 	// Get the current limit
 	var limit syscall.Rlimit
 	if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
@@ -43,9 +43,9 @@ func raiseFdLimit(max uint64) error {
 	return nil
 }
 
-// getFdLimit retrieves the number of file descriptors allowed to be opened by this
+// Current retrieves the number of file descriptors allowed to be opened by this
 // process.
-func getFdLimit() (int, error) {
+func Current() (int, error) {
 	var limit syscall.Rlimit
 	if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
 		return 0, err
@@ -53,9 +53,9 @@ func getFdLimit() (int, error) {
 	return int(limit.Cur), nil
 }
 
-// getFdMaxLimit retrieves the maximum number of file descriptors this process is
+// Maximum retrieves the maximum number of file descriptors this process is
 // allowed to request for itself.
-func getFdMaxLimit() (int, error) {
+func Maximum() (int, error) {
 	var limit syscall.Rlimit
 	if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
 		return 0, err

common/fdlimit/fdlimit_test.go

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
 
-package utils
+package fdlimit
 
 import (
 	"fmt"
@@ -25,7 +25,7 @@ import (
 // per this process can be retrieved.
 func TestFileDescriptorLimits(t *testing.T) {
 	target := 4096
-	hardlimit, err := getFdMaxLimit()
+	hardlimit, err := Maximum()
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -33,13 +33,13 @@ func TestFileDescriptorLimits(t *testing.T) {
 		t.Skip(fmt.Sprintf("system limit is less than desired test target: %d < %d", hardlimit, target))
 	}
 
-	if limit, err := getFdLimit(); err != nil || limit <= 0 {
+	if limit, err := Current(); err != nil || limit <= 0 {
 		t.Fatalf("failed to retrieve file descriptor limit (%d): %v", limit, err)
 	}
-	if err := raiseFdLimit(uint64(target)); err != nil {
+	if err := Raise(uint64(target)); err != nil {
 		t.Fatalf("failed to raise file allowance")
 	}
-	if limit, err := getFdLimit(); err != nil || limit < target {
+	if limit, err := Current(); err != nil || limit < target {
 		t.Fatalf("failed to retrieve raised descriptor limit (have %v, want %v): %v", limit, target, err)
 	}
 }

common/fdlimit/fdlimit_unix.go

@@ -16,13 +16,13 @@
 
 // +build linux darwin netbsd openbsd solaris
 
-package utils
+package fdlimit
 
 import "syscall"
 
-// raiseFdLimit tries to maximize the file descriptor allowance of this process
+// Raise tries to maximize the file descriptor allowance of this process
 // to the maximum hard-limit allowed by the OS.
-func raiseFdLimit(max uint64) error {
+func Raise(max uint64) error {
 	// Get the current limit
 	var limit syscall.Rlimit
 	if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
@@ -39,9 +39,9 @@ func raiseFdLimit(max uint64) error {
 	return nil
 }
 
-// getFdLimit retrieves the number of file descriptors allowed to be opened by this
+// Current retrieves the number of file descriptors allowed to be opened by this
 // process.
-func getFdLimit() (int, error) {
+func Current() (int, error) {
 	var limit syscall.Rlimit
 	if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
 		return 0, err
@@ -49,9 +49,9 @@ func getFdLimit() (int, error) {
 	return int(limit.Cur), nil
 }
 
-// getFdMaxLimit retrieves the maximum number of file descriptors this process is
+// Maximum retrieves the maximum number of file descriptors this process is
 // allowed to request for itself.
-func getFdMaxLimit() (int, error) {
+func Maximum() (int, error) {
 	var limit syscall.Rlimit
 	if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err != nil {
 		return 0, err

common/fdlimit/fdlimit_windows.go

@@ -14,13 +14,13 @@
 // You should have received a copy of the GNU General Public License
 // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
 
-package utils
+package fdlimit
 
 import "errors"
 
-// raiseFdLimit tries to maximize the file descriptor allowance of this process
+// Raise tries to maximize the file descriptor allowance of this process
 // to the maximum hard-limit allowed by the OS.
-func raiseFdLimit(max uint64) error {
+func Raise(max uint64) error {
 	// This method is NOP by design:
 	//  * Linux/Darwin counterparts need to manually increase per process limits
 	//  * On Windows Go uses the CreateFile API, which is limited to 16K files, non
@@ -33,15 +33,15 @@ func raiseFdLimit(max uint64) error {
 	return nil
 }
 
-// getFdLimit retrieves the number of file descriptors allowed to be opened by this
+// Current retrieves the number of file descriptors allowed to be opened by this
 // process.
-func getFdLimit() (int, error) {
+func Current() (int, error) {
-	// Please see raiseFdLimit for the reason why we use hard coded 16K as the limit
+	// Please see Raise for the reason why we use hard coded 16K as the limit
 	return 16384, nil
 }
 
-// getFdMaxLimit retrieves the maximum number of file descriptors this process is
+// Maximum retrieves the maximum number of file descriptors this process is
 // allowed to request for itself.
-func getFdMaxLimit() (int, error) {
+func Maximum() (int, error) {
-	return getFdLimit()
+	return Current()
 }

consensus/ethash/consensus.go

@@ -400,7 +400,7 @@ func calcDifficultyByzantium(time uint64, parent *types.Header) *big.Int {
 	if x.Cmp(bigMinus99) < 0 {
 		x.Set(bigMinus99)
 	}
-	// (parent_diff + parent_diff // 2048 * max(1 - (block_timestamp - parent_timestamp) // 10, -99))
+	// parent_diff + (parent_diff / 2048 * max((2 if len(parent.uncles) else 1) - ((timestamp - parent.timestamp) // 9), -99))
 	y.Div(parent.Difficulty, params.DifficultyBoundDivisor)
 	x.Mul(y, x)
 	x.Add(parent.Difficulty, x)

contracts/chequebook/cheque.go

@@ -21,7 +21,7 @@
 // as well as (auto)depositing ether to the chequebook contract.
 package chequebook
 
-//go:generate abigen --sol contract/chequebook.sol --pkg contract --out contract/chequebook.go
+//go:generate abigen --sol contract/chequebook.sol --exc contract/mortal.sol:mortal,contract/owned.sol:owned --pkg contract --out contract/chequebook.go
 //go:generate go run ./gencode.go
 
 import (

contracts/chequebook/contract/chequebook.go

@@ -1,5 +1,5 @@
-// This file is an automatically generated Go binding. Do not modify as any
+// Code generated - DO NOT EDIT.
-// change will likely be lost upon the next re-generation!
+// This file is a generated binding and any manual changes will be lost.
 
 package contract
 
@@ -14,10 +14,10 @@ import (
 )
 
 // ChequebookABI is the input ABI used to generate the binding from.
-const ChequebookABI = `[{"constant":false,"inputs":[],"name":"kill","outputs":[],"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"sent","outputs":[{"name":"","type":"uint256"}],"type":"function"},{"constant":false,"inputs":[{"name":"beneficiary","type":"address"},{"name":"amount","type":"uint256"},{"name":"sig_v","type":"uint8"},{"name":"sig_r","type":"bytes32"},{"name":"sig_s","type":"bytes32"}],"name":"cash","outputs":[],"type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"deadbeat","type":"address"}],"name":"Overdraft","type":"event"}]`
+const ChequebookABI = "[{\"constant\":false,\"inputs\":[],\"name\":\"kill\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"sent\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"beneficiary\",\"type\":\"address\"},{\"name\":\"amount\",\"type\":\"uint256\"},{\"name\":\"sig_v\",\"type\":\"uint8\"},{\"name\":\"sig_r\",\"type\":\"bytes32\"},{\"name\":\"sig_s\",\"type\":\"bytes32\"}],\"name\":\"cash\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"payable\":true,\"stateMutability\":\"payable\",\"type\":\"fallback\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"deadbeat\",\"type\":\"address\"}],\"name\":\"Overdraft\",\"type\":\"event\"}]"
 
 // ChequebookBin is the compiled bytecode used for deploying new contracts.
-const ChequebookBin = `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`
+const ChequebookBin = `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`
 
 // DeployChequebook deploys a new Ethereum contract, binding an instance of Chequebook to it.
 func DeployChequebook(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *Chequebook, error) {
@@ -226,316 +226,3 @@ func (_Chequebook *ChequebookSession) Kill() (*types.Transaction, error) {
 func (_Chequebook *ChequebookTransactorSession) Kill() (*types.Transaction, error) {
 	return _Chequebook.Contract.Kill(&_Chequebook.TransactOpts)
 }
-
-// MortalABI is the input ABI used to generate the binding from.
-const MortalABI = `[{"constant":false,"inputs":[],"name":"kill","outputs":[],"type":"function"}]`
-
-// MortalBin is the compiled bytecode used for deploying new contracts.
-const MortalBin = `0x606060405260008054600160a060020a03191633179055605c8060226000396000f3606060405260e060020a600035046341c0e1b58114601a575b005b60186000543373ffffffffffffffffffffffffffffffffffffffff90811691161415605a5760005473ffffffffffffffffffffffffffffffffffffffff16ff5b56`
-
-// DeployMortal deploys a new Ethereum contract, binding an instance of Mortal to it.
-func DeployMortal(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *Mortal, error) {
-	parsed, err := abi.JSON(strings.NewReader(MortalABI))
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(MortalBin), backend)
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	return address, tx, &Mortal{MortalCaller: MortalCaller{contract: contract}, MortalTransactor: MortalTransactor{contract: contract}}, nil
-}
-
-// Mortal is an auto generated Go binding around an Ethereum contract.
-type Mortal struct {
-	MortalCaller     // Read-only binding to the contract
-	MortalTransactor // Write-only binding to the contract
-}
-
-// MortalCaller is an auto generated read-only Go binding around an Ethereum contract.
-type MortalCaller struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// MortalTransactor is an auto generated write-only Go binding around an Ethereum contract.
-type MortalTransactor struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// MortalSession is an auto generated Go binding around an Ethereum contract,
-// with pre-set call and transact options.
-type MortalSession struct {
-	Contract     *Mortal           // Generic contract binding to set the session for
-	CallOpts     bind.CallOpts     // Call options to use throughout this session
-	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
-}
-
-// MortalCallerSession is an auto generated read-only Go binding around an Ethereum contract,
-// with pre-set call options.
-type MortalCallerSession struct {
-	Contract *MortalCaller // Generic contract caller binding to set the session for
-	CallOpts bind.CallOpts // Call options to use throughout this session
-}
-
-// MortalTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
-// with pre-set transact options.
-type MortalTransactorSession struct {
-	Contract     *MortalTransactor // Generic contract transactor binding to set the session for
-	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
-}
-
-// MortalRaw is an auto generated low-level Go binding around an Ethereum contract.
-type MortalRaw struct {
-	Contract *Mortal // Generic contract binding to access the raw methods on
-}
-
-// MortalCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
-type MortalCallerRaw struct {
-	Contract *MortalCaller // Generic read-only contract binding to access the raw methods on
-}
-
-// MortalTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
-type MortalTransactorRaw struct {
-	Contract *MortalTransactor // Generic write-only contract binding to access the raw methods on
-}
-
-// NewMortal creates a new instance of Mortal, bound to a specific deployed contract.
-func NewMortal(address common.Address, backend bind.ContractBackend) (*Mortal, error) {
-	contract, err := bindMortal(address, backend, backend)
-	if err != nil {
-		return nil, err
-	}
-	return &Mortal{MortalCaller: MortalCaller{contract: contract}, MortalTransactor: MortalTransactor{contract: contract}}, nil
-}
-
-// NewMortalCaller creates a new read-only instance of Mortal, bound to a specific deployed contract.
-func NewMortalCaller(address common.Address, caller bind.ContractCaller) (*MortalCaller, error) {
-	contract, err := bindMortal(address, caller, nil)
-	if err != nil {
-		return nil, err
-	}
-	return &MortalCaller{contract: contract}, nil
-}
-
-// NewMortalTransactor creates a new write-only instance of Mortal, bound to a specific deployed contract.
-func NewMortalTransactor(address common.Address, transactor bind.ContractTransactor) (*MortalTransactor, error) {
-	contract, err := bindMortal(address, nil, transactor)
-	if err != nil {
-		return nil, err
-	}
-	return &MortalTransactor{contract: contract}, nil
-}
-
-// bindMortal binds a generic wrapper to an already deployed contract.
-func bindMortal(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor) (*bind.BoundContract, error) {
-	parsed, err := abi.JSON(strings.NewReader(MortalABI))
-	if err != nil {
-		return nil, err
-	}
-	return bind.NewBoundContract(address, parsed, caller, transactor), nil
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_Mortal *MortalRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _Mortal.Contract.MortalCaller.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_Mortal *MortalRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _Mortal.Contract.MortalTransactor.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_Mortal *MortalRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _Mortal.Contract.MortalTransactor.contract.Transact(opts, method, params...)
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_Mortal *MortalCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _Mortal.Contract.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_Mortal *MortalTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _Mortal.Contract.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_Mortal *MortalTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _Mortal.Contract.contract.Transact(opts, method, params...)
-}
-
-// Kill is a paid mutator transaction binding the contract method 0x41c0e1b5.
-//
-// Solidity: function kill() returns()
-func (_Mortal *MortalTransactor) Kill(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _Mortal.contract.Transact(opts, "kill")
-}
-
-// Kill is a paid mutator transaction binding the contract method 0x41c0e1b5.
-//
-// Solidity: function kill() returns()
-func (_Mortal *MortalSession) Kill() (*types.Transaction, error) {
-	return _Mortal.Contract.Kill(&_Mortal.TransactOpts)
-}
-
-// Kill is a paid mutator transaction binding the contract method 0x41c0e1b5.
-//
-// Solidity: function kill() returns()
-func (_Mortal *MortalTransactorSession) Kill() (*types.Transaction, error) {
-	return _Mortal.Contract.Kill(&_Mortal.TransactOpts)
-}
-
-// OwnedABI is the input ABI used to generate the binding from.
-const OwnedABI = `[{"inputs":[],"type":"constructor"}]`
-
-// OwnedBin is the compiled bytecode used for deploying new contracts.
-const OwnedBin = `0x606060405260008054600160a060020a0319163317905560068060226000396000f3606060405200`
-
-// DeployOwned deploys a new Ethereum contract, binding an instance of Owned to it.
-func DeployOwned(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *Owned, error) {
-	parsed, err := abi.JSON(strings.NewReader(OwnedABI))
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(OwnedBin), backend)
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	return address, tx, &Owned{OwnedCaller: OwnedCaller{contract: contract}, OwnedTransactor: OwnedTransactor{contract: contract}}, nil
-}
-
-// Owned is an auto generated Go binding around an Ethereum contract.
-type Owned struct {
-	OwnedCaller     // Read-only binding to the contract
-	OwnedTransactor // Write-only binding to the contract
-}
-
-// OwnedCaller is an auto generated read-only Go binding around an Ethereum contract.
-type OwnedCaller struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// OwnedTransactor is an auto generated write-only Go binding around an Ethereum contract.
-type OwnedTransactor struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// OwnedSession is an auto generated Go binding around an Ethereum contract,
-// with pre-set call and transact options.
-type OwnedSession struct {
-	Contract     *Owned            // Generic contract binding to set the session for
-	CallOpts     bind.CallOpts     // Call options to use throughout this session
-	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
-}
-
-// OwnedCallerSession is an auto generated read-only Go binding around an Ethereum contract,
-// with pre-set call options.
-type OwnedCallerSession struct {
-	Contract *OwnedCaller  // Generic contract caller binding to set the session for
-	CallOpts bind.CallOpts // Call options to use throughout this session
-}
-
-// OwnedTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
-// with pre-set transact options.
-type OwnedTransactorSession struct {
-	Contract     *OwnedTransactor  // Generic contract transactor binding to set the session for
-	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
-}
-
-// OwnedRaw is an auto generated low-level Go binding around an Ethereum contract.
-type OwnedRaw struct {
-	Contract *Owned // Generic contract binding to access the raw methods on
-}
-
-// OwnedCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
-type OwnedCallerRaw struct {
-	Contract *OwnedCaller // Generic read-only contract binding to access the raw methods on
-}
-
-// OwnedTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
-type OwnedTransactorRaw struct {
-	Contract *OwnedTransactor // Generic write-only contract binding to access the raw methods on
-}
-
-// NewOwned creates a new instance of Owned, bound to a specific deployed contract.
-func NewOwned(address common.Address, backend bind.ContractBackend) (*Owned, error) {
-	contract, err := bindOwned(address, backend, backend)
-	if err != nil {
-		return nil, err
-	}
-	return &Owned{OwnedCaller: OwnedCaller{contract: contract}, OwnedTransactor: OwnedTransactor{contract: contract}}, nil
-}
-
-// NewOwnedCaller creates a new read-only instance of Owned, bound to a specific deployed contract.
-func NewOwnedCaller(address common.Address, caller bind.ContractCaller) (*OwnedCaller, error) {
-	contract, err := bindOwned(address, caller, nil)
-	if err != nil {
-		return nil, err
-	}
-	return &OwnedCaller{contract: contract}, nil
-}
-
-// NewOwnedTransactor creates a new write-only instance of Owned, bound to a specific deployed contract.
-func NewOwnedTransactor(address common.Address, transactor bind.ContractTransactor) (*OwnedTransactor, error) {
-	contract, err := bindOwned(address, nil, transactor)
-	if err != nil {
-		return nil, err
-	}
-	return &OwnedTransactor{contract: contract}, nil
-}
-
-// bindOwned binds a generic wrapper to an already deployed contract.
-func bindOwned(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor) (*bind.BoundContract, error) {
-	parsed, err := abi.JSON(strings.NewReader(OwnedABI))
-	if err != nil {
-		return nil, err
-	}
-	return bind.NewBoundContract(address, parsed, caller, transactor), nil
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_Owned *OwnedRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _Owned.Contract.OwnedCaller.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_Owned *OwnedRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _Owned.Contract.OwnedTransactor.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_Owned *OwnedRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _Owned.Contract.OwnedTransactor.contract.Transact(opts, method, params...)
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_Owned *OwnedCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _Owned.Contract.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_Owned *OwnedTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _Owned.Contract.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_Owned *OwnedTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _Owned.Contract.contract.Transact(opts, method, params...)
-}

contracts/chequebook/contract/chequebook.sol

@@ -1,6 +1,6 @@
 pragma solidity ^0.4.18;
 
-import "https://github.com/ethereum/solidity/std/mortal.sol";
+import "./mortal.sol";
 
 /// @title Chequebook for Ethereum micropayments
 /// @author Daniel A. Nagy <daniel@ethereum.org>
@@ -11,6 +11,9 @@ contract chequebook is mortal {
     /// @notice Overdraft event
     event Overdraft(address deadbeat);
 
+    // Allow sending ether to the chequebook.
+    function() public payable { }
+
     /// @notice Cash cheque
     ///
     /// @param beneficiary beneficiary address
@@ -19,8 +22,7 @@ contract chequebook is mortal {
     /// @param sig_r signature parameter r
     /// @param sig_s signature parameter s
     /// The digital signature is calculated on the concatenated triplet of contract address, beneficiary address and cumulative amount
-    function cash(address beneficiary, uint256 amount,
+    function cash(address beneficiary, uint256 amount, uint8 sig_v, bytes32 sig_r, bytes32 sig_s) public {
-        uint8 sig_v, bytes32 sig_r, bytes32 sig_s) {
         // Check if the cheque is old.
         // Only cheques that are more recent than the last cashed one are considered.
         require(amount > sent[beneficiary]);

contracts/chequebook/contract/code.go

@@ -2,4 +2,4 @@ package contract
 
 // ContractDeployedCode is used to detect suicides. This constant needs to be
 // updated when the contract code is changed.
-const ContractDeployedCode = "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"
+const ContractDeployedCode = "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"

contracts/chequebook/contract/mortal.sol

@@ -0,0 +1,10 @@
+pragma solidity ^0.4.0;
+
+import "./owned.sol";
+
+contract mortal is owned {
+    function kill() public {
+        if (msg.sender == owner)
+            selfdestruct(owner);
+    }
+}

contracts/chequebook/contract/owned.sol

@@ -0,0 +1,15 @@
+pragma solidity ^0.4.0;
+
+contract owned {
+    address owner;
+
+    modifier onlyowner() {
+        if (msg.sender == owner) {
+            _;
+        }
+    }
+
+    function owned() public {
+        owner = msg.sender;
+    }
+}

contracts/chequebook/gencode.go

@@ -34,14 +34,13 @@ import (
 
 var (
 	testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
-	testAccount = core.GenesisAccount{
+	testAlloc  = core.GenesisAlloc{
-		Address: crypto.PubkeyToAddress(testKey.PublicKey),
+		crypto.PubkeyToAddress(testKey.PublicKey): {Balance: big.NewInt(500000000000)},
-		Balance: big.NewInt(500000000000),
 	}
 )
 
 func main() {
-	backend := backends.NewSimulatedBackend(testAccount)
+	backend := backends.NewSimulatedBackend(testAlloc)
 	auth := bind.NewKeyedTransactor(testKey)
 
 	// Deploy the contract, get the code.

contracts/ens/contract/AbstractENS.sol

@@ -0,0 +1,23 @@
+pragma solidity ^0.4.0;
+
+contract AbstractENS {
+    function owner(bytes32 node) constant returns(address);
+    function resolver(bytes32 node) constant returns(address);
+    function ttl(bytes32 node) constant returns(uint64);
+    function setOwner(bytes32 node, address owner);
+    function setSubnodeOwner(bytes32 node, bytes32 label, address owner);
+    function setResolver(bytes32 node, address resolver);
+    function setTTL(bytes32 node, uint64 ttl);
+
+    // Logged when the owner of a node assigns a new owner to a subnode.
+    event NewOwner(bytes32 indexed node, bytes32 indexed label, address owner);
+
+    // Logged when the owner of a node transfers ownership to a new account.
+    event Transfer(bytes32 indexed node, address owner);
+
+    // Logged when the resolver for a node changes.
+    event NewResolver(bytes32 indexed node, address resolver);
+
+    // Logged when the TTL of a node changes
+    event NewTTL(bytes32 indexed node, uint64 ttl);
+}

contracts/ens/contract/ENS.sol

@@ -0,0 +1,94 @@
+pragma solidity ^0.4.0;
+
+import './AbstractENS.sol';
+
+/**
+ * The ENS registry contract.
+ */
+contract ENS is AbstractENS {
+    struct Record {
+        address owner;
+        address resolver;
+        uint64 ttl;
+    }
+
+    mapping(bytes32=>Record) records;
+
+    // Permits modifications only by the owner of the specified node.
+    modifier only_owner(bytes32 node) {
+        if (records[node].owner != msg.sender) throw;
+        _;
+    }
+
+    /**
+     * Constructs a new ENS registrar.
+     */
+    function ENS() {
+        records[0].owner = msg.sender;
+    }
+
+    /**
+     * Returns the address that owns the specified node.
+     */
+    function owner(bytes32 node) constant returns (address) {
+        return records[node].owner;
+    }
+
+    /**
+     * Returns the address of the resolver for the specified node.
+     */
+    function resolver(bytes32 node) constant returns (address) {
+        return records[node].resolver;
+    }
+
+    /**
+     * Returns the TTL of a node, and any records associated with it.
+     */
+    function ttl(bytes32 node) constant returns (uint64) {
+        return records[node].ttl;
+    }
+
+    /**
+     * Transfers ownership of a node to a new address. May only be called by the current
+     * owner of the node.
+     * @param node The node to transfer ownership of.
+     * @param owner The address of the new owner.
+     */
+    function setOwner(bytes32 node, address owner) only_owner(node) {
+        Transfer(node, owner);
+        records[node].owner = owner;
+    }
+
+    /**
+     * Transfers ownership of a subnode sha3(node, label) to a new address. May only be
+     * called by the owner of the parent node.
+     * @param node The parent node.
+     * @param label The hash of the label specifying the subnode.
+     * @param owner The address of the new owner.
+     */
+    function setSubnodeOwner(bytes32 node, bytes32 label, address owner) only_owner(node) {
+        var subnode = sha3(node, label);
+        NewOwner(node, label, owner);
+        records[subnode].owner = owner;
+    }
+
+    /**
+     * Sets the resolver address for the specified node.
+     * @param node The node to update.
+     * @param resolver The address of the resolver.
+     */
+    function setResolver(bytes32 node, address resolver) only_owner(node) {
+        NewResolver(node, resolver);
+        records[node].resolver = resolver;
+    }
+
+    /**
+     * Sets the TTL for the specified node.
+     * @param node The node to update.
+     * @param ttl The TTL in seconds.
+     */
+    function setTTL(bytes32 node, uint64 ttl) only_owner(node) {
+        NewTTL(node, ttl);
+        records[node].ttl = ttl;
+    }
+}

contracts/ens/contract/FIFSRegistrar.sol

@@ -0,0 +1,39 @@
+pragma solidity ^0.4.0;
+
+import './AbstractENS.sol';
+
+/**
+ * A registrar that allocates subdomains to the first person to claim them.
+ */
+contract FIFSRegistrar {
+    AbstractENS ens;
+    bytes32 rootNode;
+
+    modifier only_owner(bytes32 subnode) {
+        var node = sha3(rootNode, subnode);
+        var currentOwner = ens.owner(node);
+
+        if (currentOwner != 0 && currentOwner != msg.sender) throw;
+
+        _;
+    }
+
+    /**
+     * Constructor.
+     * @param ensAddr The address of the ENS registry.
+     * @param node The node that this registrar administers.
+     */
+    function FIFSRegistrar(AbstractENS ensAddr, bytes32 node) {
+        ens = ensAddr;
+        rootNode = node;
+    }
+
+    /**
+     * Register a name, or change the owner of an existing registration.
+     * @param subnode The hash of the label to register.
+     * @param owner The address of the new owner.
+     */
+    function register(bytes32 subnode, address owner) only_owner(subnode) {
+        ens.setSubnodeOwner(rootNode, subnode, owner);
+    }
+}

contracts/ens/contract/PublicResolver.sol

@@ -0,0 +1,212 @@
+pragma solidity ^0.4.0;
+
+import './AbstractENS.sol';
+
+/**
+ * A simple resolver anyone can use; only allows the owner of a node to set its
+ * address.
+ */
+contract PublicResolver {
+    bytes4 constant INTERFACE_META_ID = 0x01ffc9a7;
+    bytes4 constant ADDR_INTERFACE_ID = 0x3b3b57de;
+    bytes4 constant CONTENT_INTERFACE_ID = 0xd8389dc5;
+    bytes4 constant NAME_INTERFACE_ID = 0x691f3431;
+    bytes4 constant ABI_INTERFACE_ID = 0x2203ab56;
+    bytes4 constant PUBKEY_INTERFACE_ID = 0xc8690233;
+    bytes4 constant TEXT_INTERFACE_ID = 0x59d1d43c;
+
+    event AddrChanged(bytes32 indexed node, address a);
+    event ContentChanged(bytes32 indexed node, bytes32 hash);
+    event NameChanged(bytes32 indexed node, string name);
+    event ABIChanged(bytes32 indexed node, uint256 indexed contentType);
+    event PubkeyChanged(bytes32 indexed node, bytes32 x, bytes32 y);
+    event TextChanged(bytes32 indexed node, string indexed indexedKey, string key);
+
+    struct PublicKey {
+        bytes32 x;
+        bytes32 y;
+    }
+
+    struct Record {
+        address addr;
+        bytes32 content;
+        string name;
+        PublicKey pubkey;
+        mapping(string=>string) text;
+        mapping(uint256=>bytes) abis;
+    }
+
+    AbstractENS ens;
+    mapping(bytes32=>Record) records;
+
+    modifier only_owner(bytes32 node) {
+        if (ens.owner(node) != msg.sender) throw;
+        _;
+    }
+
+    /**
+     * Constructor.
+     * @param ensAddr The ENS registrar contract.
+     */
+    function PublicResolver(AbstractENS ensAddr) {
+        ens = ensAddr;
+    }
+
+    /**
+     * Returns true if the resolver implements the interface specified by the provided hash.
+     * @param interfaceID The ID of the interface to check for.
+     * @return True if the contract implements the requested interface.
+     */
+    function supportsInterface(bytes4 interfaceID) constant returns (bool) {
+        return interfaceID == ADDR_INTERFACE_ID ||
+               interfaceID == CONTENT_INTERFACE_ID ||
+               interfaceID == NAME_INTERFACE_ID ||
+               interfaceID == ABI_INTERFACE_ID ||
+               interfaceID == PUBKEY_INTERFACE_ID ||
+               interfaceID == TEXT_INTERFACE_ID ||
+               interfaceID == INTERFACE_META_ID;
+    }
+
+    /**
+     * Returns the address associated with an ENS node.
+     * @param node The ENS node to query.
+     * @return The associated address.
+     */
+    function addr(bytes32 node) constant returns (address ret) {
+        ret = records[node].addr;
+    }
+
+    /**
+     * Sets the address associated with an ENS node.
+     * May only be called by the owner of that node in the ENS registry.
+     * @param node The node to update.
+     * @param addr The address to set.
+     */
+    function setAddr(bytes32 node, address addr) only_owner(node) {
+        records[node].addr = addr;
+        AddrChanged(node, addr);
+    }
+
+    /**
+     * Returns the content hash associated with an ENS node.
+     * Note that this resource type is not standardized, and will likely change
+     * in future to a resource type based on multihash.
+     * @param node The ENS node to query.
+     * @return The associated content hash.
+     */
+    function content(bytes32 node) constant returns (bytes32 ret) {
+        ret = records[node].content;
+    }
+
+    /**
+     * Sets the content hash associated with an ENS node.
+     * May only be called by the owner of that node in the ENS registry.
+     * Note that this resource type is not standardized, and will likely change
+     * in future to a resource type based on multihash.
+     * @param node The node to update.
+     * @param hash The content hash to set
+     */
+    function setContent(bytes32 node, bytes32 hash) only_owner(node) {
+        records[node].content = hash;
+        ContentChanged(node, hash);
+    }
+
+    /**
+     * Returns the name associated with an ENS node, for reverse records.
+     * Defined in EIP181.
+     * @param node The ENS node to query.
+     * @return The associated name.
+     */
+    function name(bytes32 node) constant returns (string ret) {
+        ret = records[node].name;
+    }
+
+    /**
+     * Sets the name associated with an ENS node, for reverse records.
+     * May only be called by the owner of that node in the ENS registry.
+     * @param node The node to update.
+     * @param name The name to set.
+     */
+    function setName(bytes32 node, string name) only_owner(node) {
+        records[node].name = name;
+        NameChanged(node, name);
+    }
+
+    /**
+     * Returns the ABI associated with an ENS node.
+     * Defined in EIP205.
+     * @param node The ENS node to query
+     * @param contentTypes A bitwise OR of the ABI formats accepted by the caller.
+     * @return contentType The content type of the return value
+     * @return data The ABI data
+     */
+    function ABI(bytes32 node, uint256 contentTypes) constant returns (uint256 contentType, bytes data) {
+        var record = records[node];
+        for(contentType = 1; contentType <= contentTypes; contentType <<= 1) {
+            if ((contentType & contentTypes) != 0 && record.abis[contentType].length > 0) {
+                data = record.abis[contentType];
+                return;
+            }
+        }
+        contentType = 0;
+    }
+
+    /**
+     * Sets the ABI associated with an ENS node.
+     * Nodes may have one ABI of each content type. To remove an ABI, set it to
+     * the empty string.
+     * @param node The node to update.
+     * @param contentType The content type of the ABI
+     * @param data The ABI data.
+     */
+    function setABI(bytes32 node, uint256 contentType, bytes data) only_owner(node) {
+        // Content types must be powers of 2
+        if (((contentType - 1) & contentType) != 0) throw;
+
+        records[node].abis[contentType] = data;
+        ABIChanged(node, contentType);
+    }
+
+    /**
+     * Returns the SECP256k1 public key associated with an ENS node.
+     * Defined in EIP 619.
+     * @param node The ENS node to query
+     * @return x, y the X and Y coordinates of the curve point for the public key.
+     */
+    function pubkey(bytes32 node) constant returns (bytes32 x, bytes32 y) {
+        return (records[node].pubkey.x, records[node].pubkey.y);
+    }
+
+    /**
+     * Sets the SECP256k1 public key associated with an ENS node.
+     * @param node The ENS node to query
+     * @param x the X coordinate of the curve point for the public key.
+     * @param y the Y coordinate of the curve point for the public key.
+     */
+    function setPubkey(bytes32 node, bytes32 x, bytes32 y) only_owner(node) {
+        records[node].pubkey = PublicKey(x, y);
+        PubkeyChanged(node, x, y);
+    }
+
+    /**
+     * Returns the text data associated with an ENS node and key.
+     * @param node The ENS node to query.
+     * @param key The text data key to query.
+     * @return The associated text data.
+     */
+    function text(bytes32 node, string key) constant returns (string ret) {
+        ret = records[node].text[key];
+    }
+
+    /**
+     * Sets the text data associated with an ENS node and key.
+     * May only be called by the owner of that node in the ENS registry.
+     * @param node The node to update.
+     * @param key The key to set.
+     * @param value The text data value to set.
+     */
+    function setText(bytes32 node, string key, string value) only_owner(node) {
+        records[node].text[key] = value;
+        TextChanged(node, key, key);
+    }
+}

contracts/ens/contract/ens.go

@@ -1,5 +1,5 @@
-// This file is an automatically generated Go binding. Do not modify as any
+// Code generated - DO NOT EDIT.
-// change will likely be lost upon the next re-generation!
+// This file is a generated binding and any manual changes will be lost.
 
 package contract
 
@@ -13,18 +13,18 @@ import (
 )
 
 // ENSABI is the input ABI used to generate the binding from.
-const ENSABI = `[{"constant":true,"inputs":[{"name":"node","type":"bytes32"}],"name":"resolver","outputs":[{"name":"","type":"address"}],"type":"function"},{"constant":true,"inputs":[{"name":"node","type":"bytes32"}],"name":"owner","outputs":[{"name":"","type":"address"}],"type":"function"},{"constant":false,"inputs":[{"name":"node","type":"bytes32"},{"name":"label","type":"bytes32"},{"name":"owner","type":"address"}],"name":"setSubnodeOwner","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"node","type":"bytes32"},{"name":"resolver","type":"address"}],"name":"setResolver","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"node","type":"bytes32"},{"name":"owner","type":"address"}],"name":"setOwner","outputs":[],"type":"function"},{"inputs":[{"name":"owner","type":"address"}],"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":true,"name":"label","type":"bytes32"},{"indexed":false,"name":"owner","type":"address"}],"name":"NewOwner","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"owner","type":"address"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"resolver","type":"address"}],"name":"NewResolver","type":"event"}]`
+const ENSABI = "[{\"constant\":true,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"}],\"name\":\"resolver\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"}],\"name\":\"owner\",\"outputs\":[{\"name\":\"\",\"type\":\"address\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"label\",\"type\":\"bytes32\"},{\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"setSubnodeOwner\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"ttl\",\"type\":\"uint64\"}],\"name\":\"setTTL\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"}],\"name\":\"ttl\",\"outputs\":[{\"name\":\"\",\"type\":\"uint64\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"resolver\",\"type\":\"address\"}],\"name\":\"setResolver\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"node\",\"type\":\"bytes32\"},{\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"setOwner\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"node\",\"type\":\"bytes32\"},{\"indexed\":true,\"name\":\"label\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"NewOwner\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"node\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"node\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"resolver\",\"type\":\"address\"}],\"name\":\"NewResolver\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"name\":\"node\",\"type\":\"bytes32\"},{\"indexed\":false,\"name\":\"ttl\",\"type\":\"uint64\"}],\"name\":\"NewTTL\",\"type\":\"event\"}]"
 
 // ENSBin is the compiled bytecode used for deploying new contracts.
-const ENSBin = `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`
+const ENSBin = `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`
 
 // DeployENS deploys a new Ethereum contract, binding an instance of ENS to it.
-func DeployENS(auth *bind.TransactOpts, backend bind.ContractBackend, owner common.Address) (common.Address, *types.Transaction, *ENS, error) {
+func DeployENS(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *ENS, error) {
 	parsed, err := abi.JSON(strings.NewReader(ENSABI))
 	if err != nil {
 		return common.Address{}, nil, nil, err
 	}
-	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(ENSBin), backend, owner)
+	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(ENSBin), backend)
 	if err != nil {
 		return common.Address{}, nil, nil, err
 	}
@@ -210,6 +210,32 @@ func (_ENS *ENSCallerSession) Resolver(node [32]byte) (common.Address, error) {
 	return _ENS.Contract.Resolver(&_ENS.CallOpts, node)
 }
 
+// Ttl is a free data retrieval call binding the contract method 0x16a25cbd.
+//
+// Solidity: function ttl(node bytes32) constant returns(uint64)
+func (_ENS *ENSCaller) Ttl(opts *bind.CallOpts, node [32]byte) (uint64, error) {
+	var (
+		ret0 = new(uint64)
+	)
+	out := ret0
+	err := _ENS.contract.Call(opts, out, "ttl", node)
+	return *ret0, err
+}
+
+// Ttl is a free data retrieval call binding the contract method 0x16a25cbd.
+//
+// Solidity: function ttl(node bytes32) constant returns(uint64)
+func (_ENS *ENSSession) Ttl(node [32]byte) (uint64, error) {
+	return _ENS.Contract.Ttl(&_ENS.CallOpts, node)
+}
+
+// Ttl is a free data retrieval call binding the contract method 0x16a25cbd.
+//
+// Solidity: function ttl(node bytes32) constant returns(uint64)
+func (_ENS *ENSCallerSession) Ttl(node [32]byte) (uint64, error) {
+	return _ENS.Contract.Ttl(&_ENS.CallOpts, node)
+}
+
 // SetOwner is a paid mutator transaction binding the contract method 0x5b0fc9c3.
 //
 // Solidity: function setOwner(node bytes32, owner address) returns()
@@ -273,649 +299,23 @@ func (_ENS *ENSTransactorSession) SetSubnodeOwner(node [32]byte, label [32]byte,
 	return _ENS.Contract.SetSubnodeOwner(&_ENS.TransactOpts, node, label, owner)
 }
 
-// FIFSRegistrarABI is the input ABI used to generate the binding from.
+// SetTTL is a paid mutator transaction binding the contract method 0x14ab9038.
-const FIFSRegistrarABI = `[{"constant":false,"inputs":[{"name":"subnode","type":"bytes32"},{"name":"owner","type":"address"}],"name":"register","outputs":[],"type":"function"},{"inputs":[{"name":"ensAddr","type":"address"},{"name":"node","type":"bytes32"}],"type":"constructor"}]`
-
-// FIFSRegistrarBin is the compiled bytecode used for deploying new contracts.
-const FIFSRegistrarBin = `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`
-
-// DeployFIFSRegistrar deploys a new Ethereum contract, binding an instance of FIFSRegistrar to it.
-func DeployFIFSRegistrar(auth *bind.TransactOpts, backend bind.ContractBackend, ensAddr common.Address, node [32]byte) (common.Address, *types.Transaction, *FIFSRegistrar, error) {
-	parsed, err := abi.JSON(strings.NewReader(FIFSRegistrarABI))
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(FIFSRegistrarBin), backend, ensAddr, node)
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	return address, tx, &FIFSRegistrar{FIFSRegistrarCaller: FIFSRegistrarCaller{contract: contract}, FIFSRegistrarTransactor: FIFSRegistrarTransactor{contract: contract}}, nil
-}
-
-// FIFSRegistrar is an auto generated Go binding around an Ethereum contract.
-type FIFSRegistrar struct {
-	FIFSRegistrarCaller     // Read-only binding to the contract
-	FIFSRegistrarTransactor // Write-only binding to the contract
-}
-
-// FIFSRegistrarCaller is an auto generated read-only Go binding around an Ethereum contract.
-type FIFSRegistrarCaller struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// FIFSRegistrarTransactor is an auto generated write-only Go binding around an Ethereum contract.
-type FIFSRegistrarTransactor struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// FIFSRegistrarSession is an auto generated Go binding around an Ethereum contract,
-// with pre-set call and transact options.
-type FIFSRegistrarSession struct {
-	Contract     *FIFSRegistrar    // Generic contract binding to set the session for
-	CallOpts     bind.CallOpts     // Call options to use throughout this session
-	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
-}
-
-// FIFSRegistrarCallerSession is an auto generated read-only Go binding around an Ethereum contract,
-// with pre-set call options.
-type FIFSRegistrarCallerSession struct {
-	Contract *FIFSRegistrarCaller // Generic contract caller binding to set the session for
-	CallOpts bind.CallOpts        // Call options to use throughout this session
-}
-
-// FIFSRegistrarTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
-// with pre-set transact options.
-type FIFSRegistrarTransactorSession struct {
-	Contract     *FIFSRegistrarTransactor // Generic contract transactor binding to set the session for
-	TransactOpts bind.TransactOpts        // Transaction auth options to use throughout this session
-}
-
-// FIFSRegistrarRaw is an auto generated low-level Go binding around an Ethereum contract.
-type FIFSRegistrarRaw struct {
-	Contract *FIFSRegistrar // Generic contract binding to access the raw methods on
-}
-
-// FIFSRegistrarCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
-type FIFSRegistrarCallerRaw struct {
-	Contract *FIFSRegistrarCaller // Generic read-only contract binding to access the raw methods on
-}
-
-// FIFSRegistrarTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
-type FIFSRegistrarTransactorRaw struct {
-	Contract *FIFSRegistrarTransactor // Generic write-only contract binding to access the raw methods on
-}
-
-// NewFIFSRegistrar creates a new instance of FIFSRegistrar, bound to a specific deployed contract.
-func NewFIFSRegistrar(address common.Address, backend bind.ContractBackend) (*FIFSRegistrar, error) {
-	contract, err := bindFIFSRegistrar(address, backend, backend)
-	if err != nil {
-		return nil, err
-	}
-	return &FIFSRegistrar{FIFSRegistrarCaller: FIFSRegistrarCaller{contract: contract}, FIFSRegistrarTransactor: FIFSRegistrarTransactor{contract: contract}}, nil
-}
-
-// NewFIFSRegistrarCaller creates a new read-only instance of FIFSRegistrar, bound to a specific deployed contract.
-func NewFIFSRegistrarCaller(address common.Address, caller bind.ContractCaller) (*FIFSRegistrarCaller, error) {
-	contract, err := bindFIFSRegistrar(address, caller, nil)
-	if err != nil {
-		return nil, err
-	}
-	return &FIFSRegistrarCaller{contract: contract}, nil
-}
-
-// NewFIFSRegistrarTransactor creates a new write-only instance of FIFSRegistrar, bound to a specific deployed contract.
-func NewFIFSRegistrarTransactor(address common.Address, transactor bind.ContractTransactor) (*FIFSRegistrarTransactor, error) {
-	contract, err := bindFIFSRegistrar(address, nil, transactor)
-	if err != nil {
-		return nil, err
-	}
-	return &FIFSRegistrarTransactor{contract: contract}, nil
-}
-
-// bindFIFSRegistrar binds a generic wrapper to an already deployed contract.
-func bindFIFSRegistrar(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor) (*bind.BoundContract, error) {
-	parsed, err := abi.JSON(strings.NewReader(FIFSRegistrarABI))
-	if err != nil {
-		return nil, err
-	}
-	return bind.NewBoundContract(address, parsed, caller, transactor), nil
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_FIFSRegistrar *FIFSRegistrarRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _FIFSRegistrar.Contract.FIFSRegistrarCaller.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_FIFSRegistrar *FIFSRegistrarRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _FIFSRegistrar.Contract.FIFSRegistrarTransactor.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_FIFSRegistrar *FIFSRegistrarRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _FIFSRegistrar.Contract.FIFSRegistrarTransactor.contract.Transact(opts, method, params...)
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_FIFSRegistrar *FIFSRegistrarCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _FIFSRegistrar.Contract.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_FIFSRegistrar *FIFSRegistrarTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _FIFSRegistrar.Contract.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_FIFSRegistrar *FIFSRegistrarTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _FIFSRegistrar.Contract.contract.Transact(opts, method, params...)
-}
-
-// Register is a paid mutator transaction binding the contract method 0xd22057a9.
 //
-// Solidity: function register(subnode bytes32, owner address) returns()
+// Solidity: function setTTL(node bytes32, ttl uint64) returns()
-func (_FIFSRegistrar *FIFSRegistrarTransactor) Register(opts *bind.TransactOpts, subnode [32]byte, owner common.Address) (*types.Transaction, error) {
+func (_ENS *ENSTransactor) SetTTL(opts *bind.TransactOpts, node [32]byte, ttl uint64) (*types.Transaction, error) {
-	return _FIFSRegistrar.contract.Transact(opts, "register", subnode, owner)
+	return _ENS.contract.Transact(opts, "setTTL", node, ttl)
 }
 
-// Register is a paid mutator transaction binding the contract method 0xd22057a9.
+// SetTTL is a paid mutator transaction binding the contract method 0x14ab9038.
 //
-// Solidity: function register(subnode bytes32, owner address) returns()
+// Solidity: function setTTL(node bytes32, ttl uint64) returns()
-func (_FIFSRegistrar *FIFSRegistrarSession) Register(subnode [32]byte, owner common.Address) (*types.Transaction, error) {
+func (_ENS *ENSSession) SetTTL(node [32]byte, ttl uint64) (*types.Transaction, error) {
-	return _FIFSRegistrar.Contract.Register(&_FIFSRegistrar.TransactOpts, subnode, owner)
+	return _ENS.Contract.SetTTL(&_ENS.TransactOpts, node, ttl)
 }
 
-// Register is a paid mutator transaction binding the contract method 0xd22057a9.
+// SetTTL is a paid mutator transaction binding the contract method 0x14ab9038.
 //
-// Solidity: function register(subnode bytes32, owner address) returns()
+// Solidity: function setTTL(node bytes32, ttl uint64) returns()
-func (_FIFSRegistrar *FIFSRegistrarTransactorSession) Register(subnode [32]byte, owner common.Address) (*types.Transaction, error) {
+func (_ENS *ENSTransactorSession) SetTTL(node [32]byte, ttl uint64) (*types.Transaction, error) {
-	return _FIFSRegistrar.Contract.Register(&_FIFSRegistrar.TransactOpts, subnode, owner)
+	return _ENS.Contract.SetTTL(&_ENS.TransactOpts, node, ttl)
-}
-
-// PublicResolverABI is the input ABI used to generate the binding from.
-const PublicResolverABI = `[{"constant":true,"inputs":[{"name":"node","type":"bytes32"}],"name":"content","outputs":[{"name":"ret","type":"bytes32"}],"type":"function"},{"constant":true,"inputs":[{"name":"node","type":"bytes32"}],"name":"addr","outputs":[{"name":"ret","type":"address"}],"type":"function"},{"constant":false,"inputs":[{"name":"node","type":"bytes32"},{"name":"kind","type":"bytes32"}],"name":"has","outputs":[{"name":"","type":"bool"}],"type":"function"},{"constant":false,"inputs":[{"name":"node","type":"bytes32"},{"name":"hash","type":"bytes32"}],"name":"setContent","outputs":[],"type":"function"},{"constant":false,"inputs":[{"name":"node","type":"bytes32"},{"name":"addr","type":"address"}],"name":"setAddr","outputs":[],"type":"function"},{"inputs":[{"name":"ensAddr","type":"address"}],"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"a","type":"address"}],"name":"AddrChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"hash","type":"bytes32"}],"name":"ContentChanged","type":"event"}]`
-
-// PublicResolverBin is the compiled bytecode used for deploying new contracts.
-const PublicResolverBin = `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`
-
-// DeployPublicResolver deploys a new Ethereum contract, binding an instance of PublicResolver to it.
-func DeployPublicResolver(auth *bind.TransactOpts, backend bind.ContractBackend, ensAddr common.Address) (common.Address, *types.Transaction, *PublicResolver, error) {
-	parsed, err := abi.JSON(strings.NewReader(PublicResolverABI))
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(PublicResolverBin), backend, ensAddr)
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	return address, tx, &PublicResolver{PublicResolverCaller: PublicResolverCaller{contract: contract}, PublicResolverTransactor: PublicResolverTransactor{contract: contract}}, nil
-}
-
-// PublicResolver is an auto generated Go binding around an Ethereum contract.
-type PublicResolver struct {
-	PublicResolverCaller     // Read-only binding to the contract
-	PublicResolverTransactor // Write-only binding to the contract
-}
-
-// PublicResolverCaller is an auto generated read-only Go binding around an Ethereum contract.
-type PublicResolverCaller struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// PublicResolverTransactor is an auto generated write-only Go binding around an Ethereum contract.
-type PublicResolverTransactor struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// PublicResolverSession is an auto generated Go binding around an Ethereum contract,
-// with pre-set call and transact options.
-type PublicResolverSession struct {
-	Contract     *PublicResolver   // Generic contract binding to set the session for
-	CallOpts     bind.CallOpts     // Call options to use throughout this session
-	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
-}
-
-// PublicResolverCallerSession is an auto generated read-only Go binding around an Ethereum contract,
-// with pre-set call options.
-type PublicResolverCallerSession struct {
-	Contract *PublicResolverCaller // Generic contract caller binding to set the session for
-	CallOpts bind.CallOpts         // Call options to use throughout this session
-}
-
-// PublicResolverTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
-// with pre-set transact options.
-type PublicResolverTransactorSession struct {
-	Contract     *PublicResolverTransactor // Generic contract transactor binding to set the session for
-	TransactOpts bind.TransactOpts         // Transaction auth options to use throughout this session
-}
-
-// PublicResolverRaw is an auto generated low-level Go binding around an Ethereum contract.
-type PublicResolverRaw struct {
-	Contract *PublicResolver // Generic contract binding to access the raw methods on
-}
-
-// PublicResolverCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
-type PublicResolverCallerRaw struct {
-	Contract *PublicResolverCaller // Generic read-only contract binding to access the raw methods on
-}
-
-// PublicResolverTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
-type PublicResolverTransactorRaw struct {
-	Contract *PublicResolverTransactor // Generic write-only contract binding to access the raw methods on
-}
-
-// NewPublicResolver creates a new instance of PublicResolver, bound to a specific deployed contract.
-func NewPublicResolver(address common.Address, backend bind.ContractBackend) (*PublicResolver, error) {
-	contract, err := bindPublicResolver(address, backend, backend)
-	if err != nil {
-		return nil, err
-	}
-	return &PublicResolver{PublicResolverCaller: PublicResolverCaller{contract: contract}, PublicResolverTransactor: PublicResolverTransactor{contract: contract}}, nil
-}
-
-// NewPublicResolverCaller creates a new read-only instance of PublicResolver, bound to a specific deployed contract.
-func NewPublicResolverCaller(address common.Address, caller bind.ContractCaller) (*PublicResolverCaller, error) {
-	contract, err := bindPublicResolver(address, caller, nil)
-	if err != nil {
-		return nil, err
-	}
-	return &PublicResolverCaller{contract: contract}, nil
-}
-
-// NewPublicResolverTransactor creates a new write-only instance of PublicResolver, bound to a specific deployed contract.
-func NewPublicResolverTransactor(address common.Address, transactor bind.ContractTransactor) (*PublicResolverTransactor, error) {
-	contract, err := bindPublicResolver(address, nil, transactor)
-	if err != nil {
-		return nil, err
-	}
-	return &PublicResolverTransactor{contract: contract}, nil
-}
-
-// bindPublicResolver binds a generic wrapper to an already deployed contract.
-func bindPublicResolver(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor) (*bind.BoundContract, error) {
-	parsed, err := abi.JSON(strings.NewReader(PublicResolverABI))
-	if err != nil {
-		return nil, err
-	}
-	return bind.NewBoundContract(address, parsed, caller, transactor), nil
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_PublicResolver *PublicResolverRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _PublicResolver.Contract.PublicResolverCaller.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_PublicResolver *PublicResolverRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _PublicResolver.Contract.PublicResolverTransactor.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_PublicResolver *PublicResolverRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _PublicResolver.Contract.PublicResolverTransactor.contract.Transact(opts, method, params...)
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_PublicResolver *PublicResolverCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _PublicResolver.Contract.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_PublicResolver *PublicResolverTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _PublicResolver.Contract.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_PublicResolver *PublicResolverTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _PublicResolver.Contract.contract.Transact(opts, method, params...)
-}
-
-// Addr is a free data retrieval call binding the contract method 0x3b3b57de.
-//
-// Solidity: function addr(node bytes32) constant returns(ret address)
-func (_PublicResolver *PublicResolverCaller) Addr(opts *bind.CallOpts, node [32]byte) (common.Address, error) {
-	var (
-		ret0 = new(common.Address)
-	)
-	out := ret0
-	err := _PublicResolver.contract.Call(opts, out, "addr", node)
-	return *ret0, err
-}
-
-// Addr is a free data retrieval call binding the contract method 0x3b3b57de.
-//
-// Solidity: function addr(node bytes32) constant returns(ret address)
-func (_PublicResolver *PublicResolverSession) Addr(node [32]byte) (common.Address, error) {
-	return _PublicResolver.Contract.Addr(&_PublicResolver.CallOpts, node)
-}
-
-// Addr is a free data retrieval call binding the contract method 0x3b3b57de.
-//
-// Solidity: function addr(node bytes32) constant returns(ret address)
-func (_PublicResolver *PublicResolverCallerSession) Addr(node [32]byte) (common.Address, error) {
-	return _PublicResolver.Contract.Addr(&_PublicResolver.CallOpts, node)
-}
-
-// Content is a free data retrieval call binding the contract method 0x2dff6941.
-//
-// Solidity: function content(node bytes32) constant returns(ret bytes32)
-func (_PublicResolver *PublicResolverCaller) Content(opts *bind.CallOpts, node [32]byte) ([32]byte, error) {
-	var (
-		ret0 = new([32]byte)
-	)
-	out := ret0
-	err := _PublicResolver.contract.Call(opts, out, "content", node)
-	return *ret0, err
-}
-
-// Content is a free data retrieval call binding the contract method 0x2dff6941.
-//
-// Solidity: function content(node bytes32) constant returns(ret bytes32)
-func (_PublicResolver *PublicResolverSession) Content(node [32]byte) ([32]byte, error) {
-	return _PublicResolver.Contract.Content(&_PublicResolver.CallOpts, node)
-}
-
-// Content is a free data retrieval call binding the contract method 0x2dff6941.
-//
-// Solidity: function content(node bytes32) constant returns(ret bytes32)
-func (_PublicResolver *PublicResolverCallerSession) Content(node [32]byte) ([32]byte, error) {
-	return _PublicResolver.Contract.Content(&_PublicResolver.CallOpts, node)
-}
-
-// Has is a paid mutator transaction binding the contract method 0x41b9dc2b.
-//
-// Solidity: function has(node bytes32, kind bytes32) returns(bool)
-func (_PublicResolver *PublicResolverTransactor) Has(opts *bind.TransactOpts, node [32]byte, kind [32]byte) (*types.Transaction, error) {
-	return _PublicResolver.contract.Transact(opts, "has", node, kind)
-}
-
-// Has is a paid mutator transaction binding the contract method 0x41b9dc2b.
-//
-// Solidity: function has(node bytes32, kind bytes32) returns(bool)
-func (_PublicResolver *PublicResolverSession) Has(node [32]byte, kind [32]byte) (*types.Transaction, error) {
-	return _PublicResolver.Contract.Has(&_PublicResolver.TransactOpts, node, kind)
-}
-
-// Has is a paid mutator transaction binding the contract method 0x41b9dc2b.
-//
-// Solidity: function has(node bytes32, kind bytes32) returns(bool)
-func (_PublicResolver *PublicResolverTransactorSession) Has(node [32]byte, kind [32]byte) (*types.Transaction, error) {
-	return _PublicResolver.Contract.Has(&_PublicResolver.TransactOpts, node, kind)
-}
-
-// SetAddr is a paid mutator transaction binding the contract method 0xd5fa2b00.
-//
-// Solidity: function setAddr(node bytes32, addr address) returns()
-func (_PublicResolver *PublicResolverTransactor) SetAddr(opts *bind.TransactOpts, node [32]byte, addr common.Address) (*types.Transaction, error) {
-	return _PublicResolver.contract.Transact(opts, "setAddr", node, addr)
-}
-
-// SetAddr is a paid mutator transaction binding the contract method 0xd5fa2b00.
-//
-// Solidity: function setAddr(node bytes32, addr address) returns()
-func (_PublicResolver *PublicResolverSession) SetAddr(node [32]byte, addr common.Address) (*types.Transaction, error) {
-	return _PublicResolver.Contract.SetAddr(&_PublicResolver.TransactOpts, node, addr)
-}
-
-// SetAddr is a paid mutator transaction binding the contract method 0xd5fa2b00.
-//
-// Solidity: function setAddr(node bytes32, addr address) returns()
-func (_PublicResolver *PublicResolverTransactorSession) SetAddr(node [32]byte, addr common.Address) (*types.Transaction, error) {
-	return _PublicResolver.Contract.SetAddr(&_PublicResolver.TransactOpts, node, addr)
-}
-
-// SetContent is a paid mutator transaction binding the contract method 0xc3d014d6.
-//
-// Solidity: function setContent(node bytes32, hash bytes32) returns()
-func (_PublicResolver *PublicResolverTransactor) SetContent(opts *bind.TransactOpts, node [32]byte, hash [32]byte) (*types.Transaction, error) {
-	return _PublicResolver.contract.Transact(opts, "setContent", node, hash)
-}
-
-// SetContent is a paid mutator transaction binding the contract method 0xc3d014d6.
-//
-// Solidity: function setContent(node bytes32, hash bytes32) returns()
-func (_PublicResolver *PublicResolverSession) SetContent(node [32]byte, hash [32]byte) (*types.Transaction, error) {
-	return _PublicResolver.Contract.SetContent(&_PublicResolver.TransactOpts, node, hash)
-}
-
-// SetContent is a paid mutator transaction binding the contract method 0xc3d014d6.
-//
-// Solidity: function setContent(node bytes32, hash bytes32) returns()
-func (_PublicResolver *PublicResolverTransactorSession) SetContent(node [32]byte, hash [32]byte) (*types.Transaction, error) {
-	return _PublicResolver.Contract.SetContent(&_PublicResolver.TransactOpts, node, hash)
-}
-
-// ResolverABI is the input ABI used to generate the binding from.
-const ResolverABI = `[{"constant":true,"inputs":[{"name":"node","type":"bytes32"}],"name":"content","outputs":[{"name":"ret","type":"bytes32"}],"type":"function"},{"constant":true,"inputs":[{"name":"node","type":"bytes32"}],"name":"addr","outputs":[{"name":"ret","type":"address"}],"type":"function"},{"constant":false,"inputs":[{"name":"node","type":"bytes32"},{"name":"kind","type":"bytes32"}],"name":"has","outputs":[{"name":"","type":"bool"}],"type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"a","type":"address"}],"name":"AddrChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"hash","type":"bytes32"}],"name":"ContentChanged","type":"event"}]`
-
-// ResolverBin is the compiled bytecode used for deploying new contracts.
-const ResolverBin = `0x`
-
-// DeployResolver deploys a new Ethereum contract, binding an instance of Resolver to it.
-func DeployResolver(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *Resolver, error) {
-	parsed, err := abi.JSON(strings.NewReader(ResolverABI))
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(ResolverBin), backend)
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	return address, tx, &Resolver{ResolverCaller: ResolverCaller{contract: contract}, ResolverTransactor: ResolverTransactor{contract: contract}}, nil
-}
-
-// Resolver is an auto generated Go binding around an Ethereum contract.
-type Resolver struct {
-	ResolverCaller     // Read-only binding to the contract
-	ResolverTransactor // Write-only binding to the contract
-}
-
-// ResolverCaller is an auto generated read-only Go binding around an Ethereum contract.
-type ResolverCaller struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// ResolverTransactor is an auto generated write-only Go binding around an Ethereum contract.
-type ResolverTransactor struct {
-	contract *bind.BoundContract // Generic contract wrapper for the low level calls
-}
-
-// ResolverSession is an auto generated Go binding around an Ethereum contract,
-// with pre-set call and transact options.
-type ResolverSession struct {
-	Contract     *Resolver         // Generic contract binding to set the session for
-	CallOpts     bind.CallOpts     // Call options to use throughout this session
-	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
-}
-
-// ResolverCallerSession is an auto generated read-only Go binding around an Ethereum contract,
-// with pre-set call options.
-type ResolverCallerSession struct {
-	Contract *ResolverCaller // Generic contract caller binding to set the session for
-	CallOpts bind.CallOpts   // Call options to use throughout this session
-}
-
-// ResolverTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
-// with pre-set transact options.
-type ResolverTransactorSession struct {
-	Contract     *ResolverTransactor // Generic contract transactor binding to set the session for
-	TransactOpts bind.TransactOpts   // Transaction auth options to use throughout this session
-}
-
-// ResolverRaw is an auto generated low-level Go binding around an Ethereum contract.
-type ResolverRaw struct {
-	Contract *Resolver // Generic contract binding to access the raw methods on
-}
-
-// ResolverCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
-type ResolverCallerRaw struct {
-	Contract *ResolverCaller // Generic read-only contract binding to access the raw methods on
-}
-
-// ResolverTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
-type ResolverTransactorRaw struct {
-	Contract *ResolverTransactor // Generic write-only contract binding to access the raw methods on
-}
-
-// NewResolver creates a new instance of Resolver, bound to a specific deployed contract.
-func NewResolver(address common.Address, backend bind.ContractBackend) (*Resolver, error) {
-	contract, err := bindResolver(address, backend, backend)
-	if err != nil {
-		return nil, err
-	}
-	return &Resolver{ResolverCaller: ResolverCaller{contract: contract}, ResolverTransactor: ResolverTransactor{contract: contract}}, nil
-}
-
-// NewResolverCaller creates a new read-only instance of Resolver, bound to a specific deployed contract.
-func NewResolverCaller(address common.Address, caller bind.ContractCaller) (*ResolverCaller, error) {
-	contract, err := bindResolver(address, caller, nil)
-	if err != nil {
-		return nil, err
-	}
-	return &ResolverCaller{contract: contract}, nil
-}
-
-// NewResolverTransactor creates a new write-only instance of Resolver, bound to a specific deployed contract.
-func NewResolverTransactor(address common.Address, transactor bind.ContractTransactor) (*ResolverTransactor, error) {
-	contract, err := bindResolver(address, nil, transactor)
-	if err != nil {
-		return nil, err
-	}
-	return &ResolverTransactor{contract: contract}, nil
-}
-
-// bindResolver binds a generic wrapper to an already deployed contract.
-func bindResolver(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor) (*bind.BoundContract, error) {
-	parsed, err := abi.JSON(strings.NewReader(ResolverABI))
-	if err != nil {
-		return nil, err
-	}
-	return bind.NewBoundContract(address, parsed, caller, transactor), nil
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_Resolver *ResolverRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _Resolver.Contract.ResolverCaller.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_Resolver *ResolverRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _Resolver.Contract.ResolverTransactor.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_Resolver *ResolverRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _Resolver.Contract.ResolverTransactor.contract.Transact(opts, method, params...)
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (_Resolver *ResolverCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
-	return _Resolver.Contract.contract.Call(opts, result, method, params...)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (_Resolver *ResolverTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
-	return _Resolver.Contract.contract.Transfer(opts)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (_Resolver *ResolverTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	return _Resolver.Contract.contract.Transact(opts, method, params...)
-}
-
-// Addr is a free data retrieval call binding the contract method 0x3b3b57de.
-//
-// Solidity: function addr(node bytes32) constant returns(ret address)
-func (_Resolver *ResolverCaller) Addr(opts *bind.CallOpts, node [32]byte) (common.Address, error) {
-	var (
-		ret0 = new(common.Address)
-	)
-	out := ret0
-	err := _Resolver.contract.Call(opts, out, "addr", node)
-	return *ret0, err
-}
-
-// Addr is a free data retrieval call binding the contract method 0x3b3b57de.
-//
-// Solidity: function addr(node bytes32) constant returns(ret address)
-func (_Resolver *ResolverSession) Addr(node [32]byte) (common.Address, error) {
-	return _Resolver.Contract.Addr(&_Resolver.CallOpts, node)
-}
-
-// Addr is a free data retrieval call binding the contract method 0x3b3b57de.
-//
-// Solidity: function addr(node bytes32) constant returns(ret address)
-func (_Resolver *ResolverCallerSession) Addr(node [32]byte) (common.Address, error) {
-	return _Resolver.Contract.Addr(&_Resolver.CallOpts, node)
-}
-
-// Content is a free data retrieval call binding the contract method 0x2dff6941.
-//
-// Solidity: function content(node bytes32) constant returns(ret bytes32)
-func (_Resolver *ResolverCaller) Content(opts *bind.CallOpts, node [32]byte) ([32]byte, error) {
-	var (
-		ret0 = new([32]byte)
-	)
-	out := ret0
-	err := _Resolver.contract.Call(opts, out, "content", node)
-	return *ret0, err
-}
-
-// Content is a free data retrieval call binding the contract method 0x2dff6941.
-//
-// Solidity: function content(node bytes32) constant returns(ret bytes32)
-func (_Resolver *ResolverSession) Content(node [32]byte) ([32]byte, error) {
-	return _Resolver.Contract.Content(&_Resolver.CallOpts, node)
-}
-
-// Content is a free data retrieval call binding the contract method 0x2dff6941.
-//
-// Solidity: function content(node bytes32) constant returns(ret bytes32)
-func (_Resolver *ResolverCallerSession) Content(node [32]byte) ([32]byte, error) {
-	return _Resolver.Contract.Content(&_Resolver.CallOpts, node)
-}
-
-// Has is a paid mutator transaction binding the contract method 0x41b9dc2b.
-//
-// Solidity: function has(node bytes32, kind bytes32) returns(bool)
-func (_Resolver *ResolverTransactor) Has(opts *bind.TransactOpts, node [32]byte, kind [32]byte) (*types.Transaction, error) {
-	return _Resolver.contract.Transact(opts, "has", node, kind)
-}
-
-// Has is a paid mutator transaction binding the contract method 0x41b9dc2b.
-//
-// Solidity: function has(node bytes32, kind bytes32) returns(bool)
-func (_Resolver *ResolverSession) Has(node [32]byte, kind [32]byte) (*types.Transaction, error) {
-	return _Resolver.Contract.Has(&_Resolver.TransactOpts, node, kind)
-}
-
-// Has is a paid mutator transaction binding the contract method 0x41b9dc2b.
-//
-// Solidity: function has(node bytes32, kind bytes32) returns(bool)
-func (_Resolver *ResolverTransactorSession) Has(node [32]byte, kind [32]byte) (*types.Transaction, error) {
-	return _Resolver.Contract.Has(&_Resolver.TransactOpts, node, kind)
 }

contracts/ens/contract/ens.sol

@@ -1,226 +0,0 @@
-// Ethereum Name Service contracts by Nick Johnson <nick@ethereum.org>
-// 
-// To the extent possible under law, the person who associated CC0 with
-// ENS contracts has waived all copyright and related or neighboring rights
-// to ENS.
-// 
-// You should have received a copy of the CC0 legalcode along with this
-// work.  If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
-
-/**
- * The ENS registry contract.
- */
-contract ENS {
-    struct Record {
-        address owner;
-        address resolver;
-    }
-    
-    mapping(bytes32=>Record) records;
-    
-    // Logged when the owner of a node assigns a new owner to a subnode.
-    event NewOwner(bytes32 indexed node, bytes32 indexed label, address owner);
-
-    // Logged when the owner of a node transfers ownership to a new account.
-    event Transfer(bytes32 indexed node, address owner);
-
-    // Logged when the owner of a node changes the resolver for that node.
-    event NewResolver(bytes32 indexed node, address resolver);
-    
-    // Permits modifications only by the owner of the specified node.
-    modifier only_owner(bytes32 node) {
-        if(records[node].owner != msg.sender) throw;
-        _
-    }
-    
-    /**
-     * Constructs a new ENS registrar, with the provided address as the owner of the root node.
-     */
-    function ENS(address owner) {
-        records[0].owner = owner;
-    }
-    
-    /**
-     * Returns the address that owns the specified node.
-     */
-    function owner(bytes32 node) constant returns (address) {
-        return records[node].owner;
-    }
-    
-    /**
-     * Returns the address of the resolver for the specified node.
-     */
-    function resolver(bytes32 node) constant returns (address) {
-        return records[node].resolver;
-    }
-
-    /**
-     * Transfers ownership of a node to a new address. May only be called by the current
-     * owner of the node.
-     * @param node The node to transfer ownership of.
-     * @param owner The address of the new owner.
-     */
-    function setOwner(bytes32 node, address owner) only_owner(node) {
-        Transfer(node, owner);
-        records[node].owner = owner;
-    }
-
-    /**
-     * Transfers ownership of a subnode sha3(node, label) to a new address. May only be
-     * called by the owner of the parent node.
-     * @param node The parent node.
-     * @param label The hash of the label specifying the subnode.
-     * @param owner The address of the new owner.
-     */
-    function setSubnodeOwner(bytes32 node, bytes32 label, address owner) only_owner(node) {
-        var subnode = sha3(node, label);
-        NewOwner(node, label, owner);
-        records[subnode].owner = owner;
-    }
-
-    /**
-     * Sets the resolver address for the specified node.
-     * @param node The node to update.
-     * @param resolver The address of the resolver.
-     */
-    function setResolver(bytes32 node, address resolver) only_owner(node) {
-        NewResolver(node, resolver);
-        records[node].resolver = resolver;
-    }
-}
-
-/**
- * A registrar that allocates subdomains to the first person to claim them. It also deploys
- * a simple resolver contract and sets that as the default resolver on new names for
- * convenience.
- */
-contract FIFSRegistrar {
-    ENS ens;
-    PublicResolver defaultResolver;
-    bytes32 rootNode;
-    
-    /**
-     * Constructor.
-     * @param ensAddr The address of the ENS registry.
-     * @param node The node that this registrar administers.
-     */
-    function FIFSRegistrar(address ensAddr, bytes32 node) {
-        ens = ENS(ensAddr);
-        defaultResolver = new PublicResolver(ensAddr);
-        rootNode = node;
-    }
-
-    /**
-     * Register a name, or change the owner of an existing registration.
-     * @param subnode The hash of the label to register.
-     * @param owner The address of the new owner.
-     */    
-    function register(bytes32 subnode, address owner) {
-        var node = sha3(rootNode, subnode);
-        var currentOwner = ens.owner(node);
-        if(currentOwner != 0 && currentOwner != msg.sender)
-            throw;
-
-        // Temporarily set ourselves as the owner
-        ens.setSubnodeOwner(rootNode, subnode, this);
-        // Set up the default resolver
-        ens.setResolver(node, defaultResolver);
-        // Set the owner to the real owner
-        ens.setOwner(node, owner);
-    }
-}
-
-contract Resolver {
-    event AddrChanged(bytes32 indexed node, address a);
-    event ContentChanged(bytes32 indexed node, bytes32 hash);
-
-    function has(bytes32 node, bytes32 kind) returns (bool);
-    function addr(bytes32 node) constant returns (address ret);
-    function content(bytes32 node) constant returns (bytes32 ret);
-}
-
-/**
- * A simple resolver anyone can use; only allows the owner of a node to set its
- * address.
- */
-contract PublicResolver is Resolver {
-    ENS ens;
-    mapping(bytes32=>address) addresses;
-    mapping(bytes32=>bytes32) contents;
-    
-    modifier only_owner(bytes32 node) {
-        if(ens.owner(node) != msg.sender) throw;
-        _
-    }
-
-    /**
-     * Constructor.
-     * @param ensAddr The ENS registrar contract.
-     */
-    function PublicResolver(address ensAddr) {
-        ens = ENS(ensAddr);
-    }
-
-    /**
-     * Fallback function.
-     */
-    function() {
-        throw;
-    }
-
-    /**
-     * Returns true if the specified node has the specified record type.
-     * @param node The ENS node to query.
-     * @param kind The record type name, as specified in EIP137.
-     * @return True if this resolver has a record of the provided type on the
-     *         provided node.
-     */
-    function has(bytes32 node, bytes32 kind) returns (bool) {
-        return (kind == "addr" && addresses[node] != 0) ||
-               (kind == "content" && contents[node] != 0);
-    }
-    
-    /**
-     * Returns the address associated with an ENS node.
-     * @param node The ENS node to query.
-     * @return The associated address.
-     */
-    function addr(bytes32 node) constant returns (address ret) {
-        ret = addresses[node];
-        if(ret == 0)
-            throw;
-    }
-    
-    /**
-     * Returns the content hash associated with an ENS node.
-     * @param node The ENS node to query.
-     * @return The associated content hash.
-     */
-    function content(bytes32 node) constant returns (bytes32 ret) {
-        ret = contents[node];
-        if(ret == 0)
-            throw;
-    }
-
-    /**
-     * Sets the address associated with an ENS node.
-     * May only be called by the owner of that node in the ENS registry.
-     * @param node The node to update.
-     * @param addr The address to set.
-     */
-    function setAddr(bytes32 node, address addr) only_owner(node) {
-        addresses[node] = addr;
-        AddrChanged(node, addr);
-    }
-    
-    /**
-     * Sets the content hash associated with an ENS node.
-     * May only be called by the owner of that node in the ENS registry.
-     * @param node The node to update.
-     * @param hash The content hash to set.
-     */
-    function setContent(bytes32 node, bytes32 hash) only_owner(node) {
-        contents[node] = hash;
-        ContentChanged(node, hash);
-    }
-}

contracts/ens/contract/fifsregistrar.go

@@ -0,0 +1,180 @@
+// Code generated - DO NOT EDIT.
+// This file is a generated binding and any manual changes will be lost.
+
+package contract
+
+import (
+	"strings"
+
+	"github.com/EthereumCommonwealth/go-callisto/accounts/abi"
+	"github.com/EthereumCommonwealth/go-callisto/accounts/abi/bind"
+	"github.com/EthereumCommonwealth/go-callisto/common"
+	"github.com/EthereumCommonwealth/go-callisto/core/types"
+)
+
+// FIFSRegistrarABI is the input ABI used to generate the binding from.
+const FIFSRegistrarABI = "[{\"constant\":false,\"inputs\":[{\"name\":\"subnode\",\"type\":\"bytes32\"},{\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"register\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"name\":\"ensAddr\",\"type\":\"address\"},{\"name\":\"node\",\"type\":\"bytes32\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"}]"
+
+// FIFSRegistrarBin is the compiled bytecode used for deploying new contracts.
+const FIFSRegistrarBin = `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`
+
+// DeployFIFSRegistrar deploys a new Ethereum contract, binding an instance of FIFSRegistrar to it.
+func DeployFIFSRegistrar(auth *bind.TransactOpts, backend bind.ContractBackend, ensAddr common.Address, node [32]byte) (common.Address, *types.Transaction, *FIFSRegistrar, error) {
+	parsed, err := abi.JSON(strings.NewReader(FIFSRegistrarABI))
+	if err != nil {
+		return common.Address{}, nil, nil, err
+	}
+	address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(FIFSRegistrarBin), backend, ensAddr, node)
+	if err != nil {
+		return common.Address{}, nil, nil, err
+	}
+	return address, tx, &FIFSRegistrar{FIFSRegistrarCaller: FIFSRegistrarCaller{contract: contract}, FIFSRegistrarTransactor: FIFSRegistrarTransactor{contract: contract}}, nil
+}
+
+// FIFSRegistrar is an auto generated Go binding around an Ethereum contract.
+type FIFSRegistrar struct {
+	FIFSRegistrarCaller     // Read-only binding to the contract
+	FIFSRegistrarTransactor // Write-only binding to the contract
+}
+
+// FIFSRegistrarCaller is an auto generated read-only Go binding around an Ethereum contract.
+type FIFSRegistrarCaller struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// FIFSRegistrarTransactor is an auto generated write-only Go binding around an Ethereum contract.
+type FIFSRegistrarTransactor struct {
+	contract *bind.BoundContract // Generic contract wrapper for the low level calls
+}
+
+// FIFSRegistrarSession is an auto generated Go binding around an Ethereum contract,
+// with pre-set call and transact options.
+type FIFSRegistrarSession struct {
+	Contract     *FIFSRegistrar    // Generic contract binding to set the session for
+	CallOpts     bind.CallOpts     // Call options to use throughout this session
+	TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
+}
+
+// FIFSRegistrarCallerSession is an auto generated read-only Go binding around an Ethereum contract,
+// with pre-set call options.
+type FIFSRegistrarCallerSession struct {
+	Contract *FIFSRegistrarCaller // Generic contract caller binding to set the session for
+	CallOpts bind.CallOpts        // Call options to use throughout this session
+}
+
+// FIFSRegistrarTransactorSession is an auto generated write-only Go binding around an Ethereum contract,
+// with pre-set transact options.
+type FIFSRegistrarTransactorSession struct {
+	Contract     *FIFSRegistrarTransactor // Generic contract transactor binding to set the session for
+	TransactOpts bind.TransactOpts        // Transaction auth options to use throughout this session
+}
+
+// FIFSRegistrarRaw is an auto generated low-level Go binding around an Ethereum contract.
+type FIFSRegistrarRaw struct {
+	Contract *FIFSRegistrar // Generic contract binding to access the raw methods on
+}
+
+// FIFSRegistrarCallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
+type FIFSRegistrarCallerRaw struct {
+	Contract *FIFSRegistrarCaller // Generic read-only contract binding to access the raw methods on
+}
+
+// FIFSRegistrarTransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
+type FIFSRegistrarTransactorRaw struct {
+	Contract *FIFSRegistrarTransactor // Generic write-only contract binding to access the raw methods on
+}
+
+// NewFIFSRegistrar creates a new instance of FIFSRegistrar, bound to a specific deployed contract.
+func NewFIFSRegistrar(address common.Address, backend bind.ContractBackend) (*FIFSRegistrar, error) {
+	contract, err := bindFIFSRegistrar(address, backend, backend)
+	if err != nil {
+		return nil, err
+	}
+	return &FIFSRegistrar{FIFSRegistrarCaller: FIFSRegistrarCaller{contract: contract}, FIFSRegistrarTransactor: FIFSRegistrarTransactor{contract: contract}}, nil
+}
+
+// NewFIFSRegistrarCaller creates a new read-only instance of FIFSRegistrar, bound to a specific deployed contract.
+func NewFIFSRegistrarCaller(address common.Address, caller bind.ContractCaller) (*FIFSRegistrarCaller, error) {
+	contract, err := bindFIFSRegistrar(address, caller, nil)
+	if err != nil {
+		return nil, err
+	}
+	return &FIFSRegistrarCaller{contract: contract}, nil
+}
+
+// NewFIFSRegistrarTransactor creates a new write-only instance of FIFSRegistrar, bound to a specific deployed contract.
+func NewFIFSRegistrarTransactor(address common.Address, transactor bind.ContractTransactor) (*FIFSRegistrarTransactor, error) {
+	contract, err := bindFIFSRegistrar(address, nil, transactor)
+	if err != nil {
+		return nil, err
+	}
+	return &FIFSRegistrarTransactor{contract: contract}, nil
+}
+
+// bindFIFSRegistrar binds a generic wrapper to an already deployed contract.
+func bindFIFSRegistrar(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor) (*bind.BoundContract, error) {
+	parsed, err := abi.JSON(strings.NewReader(FIFSRegistrarABI))
+	if err != nil {
+		return nil, err
+	}
+	return bind.NewBoundContract(address, parsed, caller, transactor), nil
+}
+
+// Call invokes the (constant) contract method with params as input values and
+// sets the output to result. The result type might be a single field for simple
+// returns, a slice of interfaces for anonymous returns and a struct for named
+// returns.
+func (_FIFSRegistrar *FIFSRegistrarRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
+	return _FIFSRegistrar.Contract.FIFSRegistrarCaller.contract.Call(opts, result, method, params...)
+}
+
+// Transfer initiates a plain transaction to move funds to the contract, calling
+// its default method if one is available.
+func (_FIFSRegistrar *FIFSRegistrarRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _FIFSRegistrar.Contract.FIFSRegistrarTransactor.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_FIFSRegistrar *FIFSRegistrarRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _FIFSRegistrar.Contract.FIFSRegistrarTransactor.contract.Transact(opts, method, params...)
+}
+
+// Call invokes the (constant) contract method with params as input values and
+// sets the output to result. The result type might be a single field for simple
+// returns, a slice of interfaces for anonymous returns and a struct for named
+// returns.
+func (_FIFSRegistrar *FIFSRegistrarCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
+	return _FIFSRegistrar.Contract.contract.Call(opts, result, method, params...)
+}
+
+// Transfer initiates a plain transaction to move funds to the contract, calling
+// its default method if one is available.
+func (_FIFSRegistrar *FIFSRegistrarTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
+	return _FIFSRegistrar.Contract.contract.Transfer(opts)
+}
+
+// Transact invokes the (paid) contract method with params as input values.
+func (_FIFSRegistrar *FIFSRegistrarTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
+	return _FIFSRegistrar.Contract.contract.Transact(opts, method, params...)
+}
+
+// Register is a paid mutator transaction binding the contract method 0xd22057a9.
+//
+// Solidity: function register(subnode bytes32, owner address) returns()
+func (_FIFSRegistrar *FIFSRegistrarTransactor) Register(opts *bind.TransactOpts, subnode [32]byte, owner common.Address) (*types.Transaction, error) {
+	return _FIFSRegistrar.contract.Transact(opts, "register", subnode, owner)
+}
+
+// Register is a paid mutator transaction binding the contract method 0xd22057a9.
+//
+// Solidity: function register(subnode bytes32, owner address) returns()
+func (_FIFSRegistrar *FIFSRegistrarSession) Register(subnode [32]byte, owner common.Address) (*types.Transaction, error) {
+	return _FIFSRegistrar.Contract.Register(&_FIFSRegistrar.TransactOpts, subnode, owner)
+}
+
+// Register is a paid mutator transaction binding the contract method 0xd22057a9.
+//
+// Solidity: function register(subnode bytes32, owner address) returns()
+func (_FIFSRegistrar *FIFSRegistrarTransactorSession) Register(subnode [32]byte, owner common.Address) (*types.Transaction, error) {
+	return _FIFSRegistrar.Contract.Register(&_FIFSRegistrar.TransactOpts, subnode, owner)
+}

contracts/ens/ens.go

@@ -16,7 +16,9 @@
 
 package ens
 
-//go:generate abigen --sol contract/ens.sol --pkg contract --out contract/ens.go
+//go:generate abigen --sol contract/ENS.sol --exc contract/AbstractENS.sol:AbstractENS --pkg contract --out contract/ens.go
+//go:generate abigen --sol contract/FIFSRegistrar.sol --exc contract/AbstractENS.sol:AbstractENS --pkg contract --out contract/fifsregistrar.go
+//go:generate abigen --sol contract/PublicResolver.sol --exc contract/AbstractENS.sol:AbstractENS --pkg contract --out contract/publicresolver.go
 
 import (
 	"strings"
@@ -57,31 +59,29 @@ func NewENS(transactOpts *bind.TransactOpts, contractAddr common.Address, contra
 }
 
 // DeployENS deploys an instance of the ENS nameservice, with a 'first-in, first-served' root registrar.
-func DeployENS(transactOpts *bind.TransactOpts, contractBackend bind.ContractBackend) (*ENS, error) {
+func DeployENS(transactOpts *bind.TransactOpts, contractBackend bind.ContractBackend) (common.Address, *ENS, error) {
-	// Deploy the ENS registry
+	// Deploy the ENS registry.
-	ensAddr, _, _, err := contract.DeployENS(transactOpts, contractBackend, transactOpts.From)
+	ensAddr, _, _, err := contract.DeployENS(transactOpts, contractBackend)
 	if err != nil {
-		return nil, err
+		return ensAddr, nil, err
 	}
 
 	ens, err := NewENS(transactOpts, ensAddr, contractBackend)
 	if err != nil {
-		return nil, err
+		return ensAddr, nil, err
 	}
 
-	// Deploy the registrar
+	// Deploy the registrar.
 	regAddr, _, _, err := contract.DeployFIFSRegistrar(transactOpts, contractBackend, ensAddr, [32]byte{})
 	if err != nil {
-		return nil, err
+		return ensAddr, nil, err
+	}
+	// Set the registrar as owner of the ENS root.
+	if _, err = ens.SetOwner([32]byte{}, regAddr); err != nil {
+		return ensAddr, nil, err
 	}
 
-	// Set the registrar as owner of the ENS root
+	return ensAddr, ens, nil
-	_, err = ens.SetOwner([32]byte{}, regAddr)
-	if err != nil {
-		return nil, err
-	}
-
-	return ens, nil
 }
 
 func ensParentNode(name string) (common.Hash, common.Hash) {
@@ -155,15 +155,11 @@ func (self *ENS) Resolve(name string) (common.Hash, error) {
 // Only works if the registrar for the parent domain implements the FIFS registrar protocol.
 func (self *ENS) Register(name string) (*types.Transaction, error) {
 	parentNode, label := ensParentNode(name)
-
 	registrar, err := self.getRegistrar(parentNode)
 	if err != nil {
 		return nil, err
 	}
-
+	return registrar.Contract.Register(&self.TransactOpts, label, self.TransactOpts.From)
-	opts := self.TransactOpts
-	opts.GasLimit = 200000
-	return registrar.Contract.Register(&opts, label, self.TransactOpts.From)
 }
 
 // SetContentHash sets the content hash associated with a name. Only works if the caller

contracts/ens/ens_test.go

@@ -22,6 +22,7 @@ import (
 
 	"github.com/EthereumCommonwealth/go-callisto/accounts/abi/bind"
 	"github.com/EthereumCommonwealth/go-callisto/accounts/abi/bind/backends"
+	"github.com/EthereumCommonwealth/go-callisto/contracts/ens/contract"
 	"github.com/EthereumCommonwealth/go-callisto/core"
 	"github.com/EthereumCommonwealth/go-callisto/crypto"
 )
@@ -36,27 +37,36 @@ var (
 func TestENS(t *testing.T) {
 	contractBackend := backends.NewSimulatedBackend(core.GenesisAlloc{addr: {Balance: big.NewInt(1000000000)}})
 	transactOpts := bind.NewKeyedTransactor(key)
-	// Workaround for bug estimating gas in the call to Register
-	transactOpts.GasLimit = 1000000
 
-	ens, err := DeployENS(transactOpts, contractBackend)
+	ensAddr, ens, err := DeployENS(transactOpts, contractBackend)
 	if err != nil {
-		t.Fatalf("expected no error, got %v", err)
+		t.Fatalf("can't deploy root registry: %v", err)
 	}
 	contractBackend.Commit()
 
-	_, err = ens.Register(name)
+	// Set ourself as the owner of the name.
-	if err != nil {
+	if _, err := ens.Register(name); err != nil {
-		t.Fatalf("expected no error, got %v", err)
+		t.Fatalf("can't register: %v", err)
 	}
 	contractBackend.Commit()
 
-	_, err = ens.SetContentHash(name, hash)
+	// Deploy a resolver and make it responsible for the name.
+	resolverAddr, _, _, err := contract.DeployPublicResolver(transactOpts, contractBackend, ensAddr)
 	if err != nil {
-		t.Fatalf("expected no error, got %v", err)
+		t.Fatalf("can't deploy resolver: %v", err)
+	}
+	if _, err := ens.SetResolver(ensNode(name), resolverAddr); err != nil {
+		t.Fatalf("can't set resolver: %v", err)
 	}
 	contractBackend.Commit()
 
+	// Set the content hash for the name.
+	if _, err = ens.SetContentHash(name, hash); err != nil {
+		t.Fatalf("can't set content hash: %v", err)
+	}
+	contractBackend.Commit()
+
+	// Try to resolve the name.
 	vhost, err := ens.Resolve(name)
 	if err != nil {
 		t.Fatalf("expected no error, got %v", err)

contracts/release/contract.sol

@@ -14,6 +14,8 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
+pragma solidity ^0.4.18;
+
 // ReleaseOracle is an Ethereum contract to store the current and previous
 // versions of the go-ethereum implementation. Its goal is to allow Geth to
 // check for new releases automatically without the need to consult a central
@@ -58,7 +60,7 @@ contract ReleaseOracle {
   // isSigner is a modifier to authorize contract transactions.
   modifier isSigner() {
     if (authorised[msg.sender]) {
-      _
+      _;
     }
   }
 

core/gaspool.go

@@ -44,6 +44,11 @@ func (gp *GasPool) SubGas(amount uint64) error {
 	return nil
 }
 
+// Gas returns the amount of gas remaining in the pool.
+func (gp *GasPool) Gas() uint64 {
+	return uint64(*gp)
+}
+
 func (gp *GasPool) String() string {
 	return fmt.Sprintf("%d", *gp)
 }

core/gen_genesis.go

@@ -56,7 +56,7 @@ func (g *Genesis) UnmarshalJSON(input []byte) error {
 		Config     *params.ChainConfig                         `json:"config"`
 		Nonce      *math.HexOrDecimal64                        `json:"nonce"`
 		Timestamp  *math.HexOrDecimal64                        `json:"timestamp"`
-		ExtraData  hexutil.Bytes                               `json:"extraData"`
+		ExtraData  *hexutil.Bytes                              `json:"extraData"`
 		GasLimit   *math.HexOrDecimal64                        `json:"gasLimit"   gencodec:"required"`
 		Difficulty *math.HexOrDecimal256                       `json:"difficulty" gencodec:"required"`
 		Mixhash    *common.Hash                                `json:"mixHash"`
@@ -80,7 +80,7 @@ func (g *Genesis) UnmarshalJSON(input []byte) error {
 		g.Timestamp = uint64(*dec.Timestamp)
 	}
 	if dec.ExtraData != nil {
-		g.ExtraData = dec.ExtraData
+		g.ExtraData = *dec.ExtraData
 	}
 	if dec.GasLimit == nil {
 		return errors.New("missing required field 'gasLimit' for Genesis")

core/gen_genesis_account.go

@@ -38,18 +38,18 @@ func (g GenesisAccount) MarshalJSON() ([]byte, error) {
 
 func (g *GenesisAccount) UnmarshalJSON(input []byte) error {
 	type GenesisAccount struct {
-		Code       hexutil.Bytes               `json:"code,omitempty"`
+		Code       *hexutil.Bytes              `json:"code,omitempty"`
 		Storage    map[storageJSON]storageJSON `json:"storage,omitempty"`
 		Balance    *math.HexOrDecimal256       `json:"balance" gencodec:"required"`
 		Nonce      *math.HexOrDecimal64        `json:"nonce,omitempty"`
-		PrivateKey hexutil.Bytes               `json:"secretKey,omitempty"`
+		PrivateKey *hexutil.Bytes              `json:"secretKey,omitempty"`
 	}
 	var dec GenesisAccount
 	if err := json.Unmarshal(input, &dec); err != nil {
 		return err
 	}
 	if dec.Code != nil {
-		g.Code = dec.Code
+		g.Code = *dec.Code
 	}
 	if dec.Storage != nil {
 		g.Storage = make(map[common.Hash]common.Hash, len(dec.Storage))
@@ -65,7 +65,7 @@ func (g *GenesisAccount) UnmarshalJSON(input []byte) error {
 		g.Nonce = uint64(*dec.Nonce)
 	}
 	if dec.PrivateKey != nil {
-		g.PrivateKey = dec.PrivateKey
+		g.PrivateKey = *dec.PrivateKey
 	}
 	return nil
 }

core/types/block.go

@@ -89,8 +89,8 @@ type Header struct {
 type headerMarshaling struct {
 	Difficulty *hexutil.Big
 	Number     *hexutil.Big
-	GasLimit   *hexutil.Uint64
+	GasLimit   hexutil.Uint64
-	GasUsed    *hexutil.Uint64
+	GasUsed    hexutil.Uint64
 	Time       *hexutil.Big
 	Extra      hexutil.Bytes
 	Hash       common.Hash `json:"hash"` // adds call to Hash() in MarshalJSON

core/types/gen_header_json.go

@@ -11,6 +11,8 @@ import (
 	"github.com/EthereumCommonwealth/go-callisto/common/hexutil"
 )
 
+var _ = (*headerMarshaling)(nil)
+
 func (h Header) MarshalJSON() ([]byte, error) {
 	type Header struct {
 		ParentHash  common.Hash    `json:"parentHash"       gencodec:"required"`
@@ -64,7 +66,7 @@ func (h *Header) UnmarshalJSON(input []byte) error {
 		GasLimit    *hexutil.Uint64 `json:"gasLimit"         gencodec:"required"`
 		GasUsed     *hexutil.Uint64 `json:"gasUsed"          gencodec:"required"`
 		Time        *hexutil.Big    `json:"timestamp"        gencodec:"required"`
-		Extra       hexutil.Bytes   `json:"extraData"        gencodec:"required"`
+		Extra       *hexutil.Bytes  `json:"extraData"        gencodec:"required"`
 		MixDigest   *common.Hash    `json:"mixHash"          gencodec:"required"`
 		Nonce       *BlockNonce     `json:"nonce"            gencodec:"required"`
 	}
@@ -111,11 +113,11 @@ func (h *Header) UnmarshalJSON(input []byte) error {
 	if dec.GasLimit == nil {
 		return errors.New("missing required field 'gasLimit' for Header")
 	}
-	h.GasLimit = (uint64)(*dec.GasLimit)
+	h.GasLimit = uint64(*dec.GasLimit)
 	if dec.GasUsed == nil {
 		return errors.New("missing required field 'gasUsed' for Header")
 	}
-	h.GasUsed = (uint64)(*dec.GasUsed)
+	h.GasUsed = uint64(*dec.GasUsed)
 	if dec.Time == nil {
 		return errors.New("missing required field 'timestamp' for Header")
 	}
@@ -123,7 +125,7 @@ func (h *Header) UnmarshalJSON(input []byte) error {
 	if dec.Extra == nil {
 		return errors.New("missing required field 'extraData' for Header")
 	}
-	h.Extra = dec.Extra
+	h.Extra = *dec.Extra
 	if dec.MixDigest == nil {
 		return errors.New("missing required field 'mixHash' for Header")
 	}

core/types/gen_log_json.go

@@ -10,6 +10,8 @@ import (
 	"github.com/EthereumCommonwealth/go-callisto/common/hexutil"
 )
 
+var _ = (*logMarshaling)(nil)
+
 func (l Log) MarshalJSON() ([]byte, error) {
 	type Log struct {
 		Address     common.Address `json:"address" gencodec:"required"`
@@ -39,7 +41,7 @@ func (l *Log) UnmarshalJSON(input []byte) error {
 	type Log struct {
 		Address     *common.Address `json:"address" gencodec:"required"`
 		Topics      []common.Hash   `json:"topics" gencodec:"required"`
-		Data        hexutil.Bytes   `json:"data" gencodec:"required"`
+		Data        *hexutil.Bytes  `json:"data" gencodec:"required"`
 		BlockNumber *hexutil.Uint64 `json:"blockNumber"`
 		TxHash      *common.Hash    `json:"transactionHash" gencodec:"required"`
 		TxIndex     *hexutil.Uint   `json:"transactionIndex" gencodec:"required"`
@@ -62,7 +64,7 @@ func (l *Log) UnmarshalJSON(input []byte) error {
 	if dec.Data == nil {
 		return errors.New("missing required field 'data' for Log")
 	}
-	l.Data = dec.Data
+	l.Data = *dec.Data
 	if dec.BlockNumber != nil {
 		l.BlockNumber = uint64(*dec.BlockNumber)
 	}

core/types/gen_receipt_json.go

@@ -10,6 +10,8 @@ import (
 	"github.com/EthereumCommonwealth/go-callisto/common/hexutil"
 )
 
+var _ = (*receiptMarshaling)(nil)
+
 func (r Receipt) MarshalJSON() ([]byte, error) {
 	type Receipt struct {
 		PostState         hexutil.Bytes  `json:"root"`
@@ -35,7 +37,7 @@ func (r Receipt) MarshalJSON() ([]byte, error) {
 
 func (r *Receipt) UnmarshalJSON(input []byte) error {
 	type Receipt struct {
-		PostState         hexutil.Bytes   `json:"root"`
+		PostState         *hexutil.Bytes  `json:"root"`
 		Status            *hexutil.Uint   `json:"status"`
 		CumulativeGasUsed *hexutil.Uint64 `json:"cumulativeGasUsed" gencodec:"required"`
 		Bloom             *Bloom          `json:"logsBloom"         gencodec:"required"`
@@ -49,7 +51,7 @@ func (r *Receipt) UnmarshalJSON(input []byte) error {
 		return err
 	}
 	if dec.PostState != nil {
-		r.PostState = dec.PostState
+		r.PostState = *dec.PostState
 	}
 	if dec.Status != nil {
 		r.Status = uint(*dec.Status)

core/types/gen_tx_json.go

@@ -11,6 +11,8 @@ import (
 	"github.com/EthereumCommonwealth/go-callisto/common/hexutil"
 )
 
+var _ = (*txdataMarshaling)(nil)
+
 func (t txdata) MarshalJSON() ([]byte, error) {
 	type txdata struct {
 		AccountNonce hexutil.Uint64  `json:"nonce"    gencodec:"required"`
@@ -45,7 +47,7 @@ func (t *txdata) UnmarshalJSON(input []byte) error {
 		GasLimit     *hexutil.Uint64 `json:"gas"      gencodec:"required"`
 		Recipient    *common.Address `json:"to"       rlp:"nil"`
 		Amount       *hexutil.Big    `json:"value"    gencodec:"required"`
-		Payload      hexutil.Bytes   `json:"input"    gencodec:"required"`
+		Payload      *hexutil.Bytes  `json:"input"    gencodec:"required"`
 		V            *hexutil.Big    `json:"v" gencodec:"required"`
 		R            *hexutil.Big    `json:"r" gencodec:"required"`
 		S            *hexutil.Big    `json:"s" gencodec:"required"`
@@ -77,7 +79,7 @@ func (t *txdata) UnmarshalJSON(input []byte) error {
 	if dec.Payload == nil {
 		return errors.New("missing required field 'input' for txdata")
 	}
-	t.Payload = dec.Payload
+	t.Payload = *dec.Payload
 	if dec.V == nil {
 		return errors.New("missing required field 'v' for txdata")
 	}

core/vm/evm.go

@@ -391,7 +391,7 @@ func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.I
 	return ret, contractAddr, contract.Gas, err
 }
 
-// ChainConfig returns the evmironment's chain configuration
+// ChainConfig returns the environment's chain configuration
 func (evm *EVM) ChainConfig() *params.ChainConfig { return evm.chainConfig }
 
 // Interpreter returns the EVM interpreter

core/vm/gen_structlog.go

@@ -11,6 +11,8 @@ import (
 	"github.com/EthereumCommonwealth/go-callisto/common/math"
 )
 
+var _ = (*structLogMarshaling)(nil)
+
 func (s StructLog) MarshalJSON() ([]byte, error) {
 	type StructLog struct {
 		Pc          uint64                      `json:"pc"`
@@ -22,8 +24,9 @@ func (s StructLog) MarshalJSON() ([]byte, error) {
 		Stack       []*math.HexOrDecimal256     `json:"stack"`
 		Storage     map[common.Hash]common.Hash `json:"-"`
 		Depth       int                         `json:"depth"`
-		Err        error                       `json:"error"`
+		Err         error                       `json:"-"`
 		OpName      string                      `json:"opName"`
+		ErrorString string                      `json:"error"`
 	}
 	var enc StructLog
 	enc.Pc = s.Pc
@@ -42,6 +45,7 @@ func (s StructLog) MarshalJSON() ([]byte, error) {
 	enc.Depth = s.Depth
 	enc.Err = s.Err
 	enc.OpName = s.OpName()
+	enc.ErrorString = s.ErrorString()
 	return json.Marshal(&enc)
 }
 
@@ -51,12 +55,12 @@ func (s *StructLog) UnmarshalJSON(input []byte) error {
 		Op         *OpCode                     `json:"op"`
 		Gas        *math.HexOrDecimal64        `json:"gas"`
 		GasCost    *math.HexOrDecimal64        `json:"gasCost"`
-		Memory     hexutil.Bytes               `json:"memory"`
+		Memory     *hexutil.Bytes              `json:"memory"`
 		MemorySize *int                        `json:"memSize"`
 		Stack      []*math.HexOrDecimal256     `json:"stack"`
 		Storage    map[common.Hash]common.Hash `json:"-"`
 		Depth      *int                        `json:"depth"`
-		Err        *error                      `json:"error"`
+		Err        error                       `json:"-"`
 	}
 	var dec StructLog
 	if err := json.Unmarshal(input, &dec); err != nil {
@@ -75,7 +79,7 @@ func (s *StructLog) UnmarshalJSON(input []byte) error {
 		s.GasCost = uint64(*dec.GasCost)
 	}
 	if dec.Memory != nil {
-		s.Memory = dec.Memory
+		s.Memory = *dec.Memory
 	}
 	if dec.MemorySize != nil {
 		s.MemorySize = *dec.MemorySize
@@ -93,7 +97,7 @@ func (s *StructLog) UnmarshalJSON(input []byte) error {
 		s.Depth = *dec.Depth
 	}
 	if dec.Err != nil {
-		s.Err = *dec.Err
+		s.Err = dec.Err
 	}
 	return nil
 }

core/vm/logger.go

@@ -62,7 +62,7 @@ type StructLog struct {
 	Stack      []*big.Int                  `json:"stack"`
 	Storage    map[common.Hash]common.Hash `json:"-"`
 	Depth      int                         `json:"depth"`
-	Err        error                       `json:"error"`
+	Err        error                       `json:"-"`
 }
 
 // overrides for gencodec
@@ -71,13 +71,21 @@ type structLogMarshaling struct {
 	Gas         math.HexOrDecimal64
 	GasCost     math.HexOrDecimal64
 	Memory      hexutil.Bytes
-	OpName  string `json:"opName"`
+	OpName      string `json:"opName"` // adds call to OpName() in MarshalJSON
+	ErrorString string `json:"error"`  // adds call to ErrorString() in MarshalJSON
 }
 
 func (s *StructLog) OpName() string {
 	return s.Op.String()
 }
 
+func (s *StructLog) ErrorString() string {
+	if s.Err != nil {
+		return s.Err.Error()
+	}
+	return ""
+}
+
 // Tracer is used to collect execution traces from an EVM transaction
 // execution. CaptureState is called for each step of the VM with the
 // current VM state.

dashboard/README.md

@@ -20,7 +20,7 @@ Normally the dashboard assets are bundled into Geth via `go-bindata` to avoid ex
 
 ```
 $ (cd dashboard/assets && ./node_modules/.bin/webpack --watch)
-$ geth --dashboard --dashboard.assets=dashboard/assets/public --vmodule=dashboard=5
+$ geth --dashboard --dashboard.assets=dashboard/assets --vmodule=dashboard=5
 ```
 
 To bundle up the final UI into Geth, run `go generate`:

dashboard/assets/components/Common.jsx

@@ -62,32 +62,4 @@ export type MenuProp = {|...ProvidedMenuProp, id: string|};
 // This way the mistyping is prevented.
 export const MENU: Map<string, {...MenuProp}> = new Map(menuSkeletons.map(({id, menu}) => ([id, {id, ...menu}])));
 
-type ProvidedSampleProp = {|limit: number|};
-const sampleSkeletons: Array<{|id: string, sample: ProvidedSampleProp|}> = [
-	{
-		id:     'memory',
-		sample: {
-			limit: 200,
-		},
-	}, {
-		id:     'traffic',
-		sample: {
-			limit: 200,
-		},
-	}, {
-		id:     'logs',
-		sample: {
-			limit: 200,
-		},
-	},
-];
-export type SampleProp = {|...ProvidedSampleProp, id: string|};
-export const SAMPLE: Map<string, {...SampleProp}> = new Map(sampleSkeletons.map(({id, sample}) => ([id, {id, ...sample}])));
-
 export const DURATION = 200;
-
-export const LENS: Map<string, string> = new Map([
-	'content',
-	...menuSkeletons.map(({id}) => id),
-	...sampleSkeletons.map(({id}) => id),
-].map(lens => [lens, lens]));

dashboard/assets/components/Dashboard.jsx

@@ -19,37 +19,99 @@
 import React, {Component} from 'react';
 
 import withStyles from 'material-ui/styles/withStyles';
-import {lensPath, view, set} from 'ramda';
 
 import Header from './Header';
 import Body from './Body';
-import {MENU, SAMPLE} from './Common';
+import Footer from './Footer';
-import type {Message, HomeMessage, LogsMessage, Chart} from '../types/message';
+import {MENU} from './Common';
 import type {Content} from '../types/content';
 
-// appender appends an array (A) to the end of another array (B) in the state.
+// deepUpdate updates an object corresponding to the given update data, which has
-// lens is the path of B in the state, samples is A, and limit is the maximum size of the changed array.
+// the shape of the same structure as the original object. updater also has the same
+// structure, except that it contains functions where the original data needs to be
+// updated. These functions are used to handle the update.
 //
-// appender retrieves a function, which overrides the state's value at lens, and returns with the overridden state.
+// Since the messages have the same shape as the state content, this approach allows
-const appender = (lens, samples, limit) => (state) => {
+// the generalization of the message handling. The only necessary thing is to set a
-	const newSamples = [
+// handler function for every path of the state in order to maximize the flexibility
-		...view(lens, state), // retrieves a specific value of the state at the given path (lens).
+// of the update.
-		...samples,
+const deepUpdate = (prev: Object, update: Object, updater: Object) => {
-	];
+	if (typeof update === 'undefined') {
-	// set is a function of ramda.js, which needs the path, the new value, the original state, and retrieves
+		// TODO (kurkomisi): originally this was deep copy, investigate it.
-	// the altered state.
+		return prev;
-	return set(
+	}
-		lens,
+	if (typeof updater === 'function') {
-		newSamples.slice(newSamples.length > limit ? newSamples.length - limit : 0),
+		return updater(prev, update);
-		state
+	}
-	);
+	const updated = {};
+	Object.keys(prev).forEach((key) => {
+		updated[key] = deepUpdate(prev[key], update[key], updater[key]);
+	});
+
+	return updated;
 };
-// Lenses for specific data fields in the state, used for a clearer deep update.
+
-// NOTE: This solution will be changed very likely.
+// shouldUpdate returns the structure of a message. It is used to prevent unnecessary render
-const memoryLens = lensPath(['content', 'home', 'memory']);
+// method triggerings. In the affected component's shouldComponentUpdate method it can be checked
-const trafficLens = lensPath(['content', 'home', 'traffic']);
+// whether the involved data was changed or not by checking the message structure.
-const logLens = lensPath(['content', 'logs', 'log']);
+//
-// styles retrieves the styles for the Dashboard component.
+// We could return the message itself too, but it's safer not to give access to it.
+const shouldUpdate = (msg: Object, updater: Object) => {
+	const su = {};
+	Object.keys(msg).forEach((key) => {
+		su[key] = typeof updater[key] !== 'function' ? shouldUpdate(msg[key], updater[key]) : true;
+	});
+
+	return su;
+};
+
+// appender is a state update generalization function, which appends the update data
+// to the existing data. limit defines the maximum allowed size of the created array.
+const appender = <T>(limit: number) => (prev: Array<T>, update: Array<T>) => [...prev, ...update].slice(-limit);
+
+// replacer is a state update generalization function, which replaces the original data.
+const replacer = <T>(prev: T, update: T) => update;
+
+// defaultContent is the initial value of the state content.
+const defaultContent: Content = {
+	general: {
+		version: null,
+		commit:  null,
+	},
+	home: {
+		memory:  [],
+		traffic: [],
+	},
+	chain:   {},
+	txpool:  {},
+	network: {},
+	system:  {},
+	logs:    {
+		log: [],
+	},
+};
+
+// updaters contains the state update generalization functions for each path of the state.
+// TODO (kurkomisi): Define a tricky type which embraces the content and the handlers.
+const updaters = {
+	general: {
+		version: replacer,
+		commit:  replacer,
+	},
+	home: {
+		memory:  appender(200),
+		traffic: appender(200),
+	},
+	chain:   null,
+	txpool:  null,
+	network: null,
+	system:  null,
+	logs:    {
+		log: appender(200),
+	},
+};
+
+// styles returns the styles for the Dashboard component.
 const styles = theme => ({
 	dashboard: {
 		display:    'flex',
@@ -61,15 +123,18 @@ const styles = theme => ({
 		overflow:   'hidden',
 	},
 });
+
 export type Props = {
 	classes: Object,
 };
+
 type State = {
 	active: string, // active menu
 	sideBar: boolean, // true if the sidebar is opened
-	content: $Shape<Content>, // the visualized data
+	content: Content, // the visualized data
-	shouldUpdate: Set<string> // labels for the components, which need to rerender based on the incoming message
+	shouldUpdate: Object // labels for the components, which need to rerender based on the incoming message
 };
+
 // Dashboard is the main component, which renders the whole page, makes connection with the server and
 // listens for messages. When there is an incoming message, updates the page's content correspondingly.
 class Dashboard extends Component<Props, State> {
@@ -78,8 +143,8 @@ class Dashboard extends Component<Props, State> {
 		this.state = {
 			active:       MENU.get('home').id,
 			sideBar:      true,
-			content:      {home: {memory: [], traffic: []}, logs: {log: []}},
+			content:      defaultContent,
-			shouldUpdate: new Set(),
+			shouldUpdate: {},
 		};
 	}
 
@@ -91,13 +156,14 @@ class Dashboard extends Component<Props, State> {
 	// reconnect establishes a websocket connection with the server, listens for incoming messages
 	// and tries to reconnect on connection loss.
 	reconnect = () => {
-		this.setState({
-			content: {home: {memory: [], traffic: []}, logs: {log: []}},
-		});
 		const server = new WebSocket(`${((window.location.protocol === 'https:') ? 'wss://' : 'ws://') + window.location.host}/api`);
+		server.onopen = () => {
+			this.setState({content: defaultContent, shouldUpdate: {}});
+		};
 		server.onmessage = (event) => {
-			const msg: Message = JSON.parse(event.data);
+			const msg: $Shape<Content> = JSON.parse(event.data);
 			if (!msg) {
+				console.error(`Incoming message is ${msg}`);
 				return;
 			}
 			this.update(msg);
@@ -107,56 +173,12 @@ class Dashboard extends Component<Props, State> {
 		};
 	};
 
-	// samples retrieves the raw data of a chart field from the incoming message.
+	// update updates the content corresponding to the incoming message.
-	samples = (chart: Chart) => {
+	update = (msg: $Shape<Content>) => {
-		let s = [];
+		this.setState(prevState => ({
-		if (chart.history) {
+			content:      deepUpdate(prevState.content, msg, updaters),
-			s = chart.history.map(({value}) => (value || 0)); // traffic comes without value at the beginning
+			shouldUpdate: shouldUpdate(msg, updaters),
-		}
+		}));
-		if (chart.new) {
-			s = [...s, chart.new.value || 0];
-		}
-		return s;
-	};
-
-	// handleHome changes the home-menu related part of the state.
-	handleHome = (home: HomeMessage) => {
-		this.setState((prevState) => {
-			let newState = prevState;
-			newState.shouldUpdate = new Set();
-			if (home.memory) {
-				newState = appender(memoryLens, this.samples(home.memory), SAMPLE.get('memory').limit)(newState);
-				newState.shouldUpdate.add('memory');
-			}
-			if (home.traffic) {
-				newState = appender(trafficLens, this.samples(home.traffic), SAMPLE.get('traffic').limit)(newState);
-				newState.shouldUpdate.add('traffic');
-			}
-			return newState;
-		});
-	};
-
-	// handleLogs changes the logs-menu related part of the state.
-	handleLogs = (logs: LogsMessage) => {
-		this.setState((prevState) => {
-			let newState = prevState;
-			newState.shouldUpdate = new Set();
-			if (logs.log) {
-				newState = appender(logLens, [logs.log], SAMPLE.get('logs').limit)(newState);
-				newState.shouldUpdate.add('logs');
-			}
-			return newState;
-		});
-	};
-
-	// update analyzes the incoming message, and updates the charts' content correspondingly.
-	update = (msg: Message) => {
-		if (msg.home) {
-			this.handleHome(msg.home);
-		}
-		if (msg.logs) {
-			this.handleLogs(msg.logs);
-		}
 	};
 
 	// changeContent sets the active label, which is used at the content rendering.
@@ -191,6 +213,13 @@ class Dashboard extends Component<Props, State> {
 					content={this.state.content}
 					shouldUpdate={this.state.shouldUpdate}
 				/>
+				<Footer
+					opened={this.state.sideBar}
+					openSideBar={this.openSideBar}
+					closeSideBar={this.closeSideBar}
+					general={this.state.content.general}
+					shouldUpdate={this.state.shouldUpdate}
+				/>
 			</div>
 		);
 	}

dashboard/assets/components/Footer.jsx

@@ -0,0 +1,80 @@
+// @flow
+
+// Copyright 2017 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+import React, {Component} from 'react';
+
+import withStyles from 'material-ui/styles/withStyles';
+import AppBar from 'material-ui/AppBar';
+import Toolbar from 'material-ui/Toolbar';
+import Typography from 'material-ui/Typography';
+
+import type {General} from '../types/content';
+
+// styles contains styles for the Header component.
+const styles = theme => ({
+	footer: {
+		backgroundColor: theme.palette.background.appBar,
+		color:           theme.palette.getContrastText(theme.palette.background.appBar),
+		zIndex:          theme.zIndex.appBar,
+	},
+	toolbar: {
+		paddingLeft:    theme.spacing.unit,
+		paddingRight:   theme.spacing.unit,
+		display:        'flex',
+		justifyContent: 'flex-end',
+	},
+	light: {
+		color: 'rgba(255, 255, 255, 0.54)',
+	},
+});
+export type Props = {
+	general: General,
+	classes: Object,
+};
+// TODO (kurkomisi): If the structure is appropriate, make an abstraction of the common parts with the Header.
+// Footer renders the header of the dashboard.
+class Footer extends Component<Props> {
+	shouldComponentUpdate(nextProps) {
+		return typeof nextProps.shouldUpdate.logs !== 'undefined';
+	}
+
+	info = (about: string, data: string) => (
+		<Typography type="caption" color="inherit">
+			<span className={this.props.classes.light}>{about}</span> {data}
+		</Typography>
+	);
+
+	render() {
+		const {classes, general} = this.props; // The classes property is injected by withStyles().
+		const geth = general.version ? this.info('Geth', general.version) : null;
+		const commit = general.commit ? this.info('Commit', general.commit.substring(0, 7)) : null;
+
+		return (
+			<AppBar position="static" className={classes.footer}>
+				<Toolbar className={classes.toolbar}>
+					<div>
+						{geth}
+						{commit}
+					</div>
+				</Toolbar>
+			</AppBar>
+		);
+	}
+}
+
+export default withStyles(styles)(Footer);

dashboard/assets/components/Home.jsx

@@ -22,7 +22,7 @@ import withTheme from 'material-ui/styles/withTheme';
 import {LineChart, AreaChart, Area, YAxis, CartesianGrid, Line} from 'recharts';
 
 import ChartGrid from './ChartGrid';
-import type {ChartEntry} from '../types/message';
+import type {ChartEntry} from '../types/content';
 
 export type Props = {
     theme: Object,
@@ -40,11 +40,16 @@ class Home extends Component<Props> {
 	}
 
 	shouldComponentUpdate(nextProps) {
-		return nextProps.shouldUpdate.has('memory') || nextProps.shouldUpdate.has('traffic');
+		return typeof nextProps.shouldUpdate.home !== 'undefined';
 	}
 
+	memoryColor: Object;
+	trafficColor: Object;
+
 	render() {
-		const {memory, traffic} = this.props;
+		let {memory, traffic} = this.props;
+		memory = memory.map(({value}) => (value || 0));
+		traffic = traffic.map(({value}) => (value || 0));
 
 		return (
 			<ChartGrid spacing={24}>

dashboard/assets/package-lock.json

@@ -1574,6 +1574,7 @@
             "requires": {
                 "anymatch": "1.3.2",
                 "async-each": "1.0.1",
+                "fsevents": "1.1.3",
                 "glob-parent": "2.0.0",
                 "inherits": "2.0.3",
                 "is-binary-path": "1.0.1",
@@ -2977,6 +2978,795 @@
             "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
             "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
         },
+        "fsevents": {
+            "version": "1.1.3",
+            "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.1.3.tgz",
+            "integrity": "sha512-WIr7iDkdmdbxu/Gh6eKEZJL6KPE74/5MEsf2whTOFNxbIoIixogroLdKYqB6FDav4Wavh/lZdzzd3b2KxIXC5Q==",
+            "optional": true,
+            "requires": {
+                "nan": "2.8.0",
+                "node-pre-gyp": "0.6.39"
+            },
+            "dependencies": {
+                "abbrev": {
+                    "version": "1.1.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "ajv": {
+                    "version": "4.11.8",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "co": "4.6.0",
+                        "json-stable-stringify": "1.0.1"
+                    }
+                },
+                "ansi-regex": {
+                    "version": "2.1.1",
+                    "bundled": true
+                },
+                "aproba": {
+                    "version": "1.1.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "are-we-there-yet": {
+                    "version": "1.1.4",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "delegates": "1.0.0",
+                        "readable-stream": "2.2.9"
+                    }
+                },
+                "asn1": {
+                    "version": "0.2.3",
+                    "bundled": true,
+                    "optional": true
+                },
+                "assert-plus": {
+                    "version": "0.2.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "asynckit": {
+                    "version": "0.4.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "aws-sign2": {
+                    "version": "0.6.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "aws4": {
+                    "version": "1.6.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "balanced-match": {
+                    "version": "0.4.2",
+                    "bundled": true
+                },
+                "bcrypt-pbkdf": {
+                    "version": "1.0.1",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "tweetnacl": "0.14.5"
+                    }
+                },
+                "block-stream": {
+                    "version": "0.0.9",
+                    "bundled": true,
+                    "requires": {
+                        "inherits": "2.0.3"
+                    }
+                },
+                "boom": {
+                    "version": "2.10.1",
+                    "bundled": true,
+                    "requires": {
+                        "hoek": "2.16.3"
+                    }
+                },
+                "brace-expansion": {
+                    "version": "1.1.7",
+                    "bundled": true,
+                    "requires": {
+                        "balanced-match": "0.4.2",
+                        "concat-map": "0.0.1"
+                    }
+                },
+                "buffer-shims": {
+                    "version": "1.0.0",
+                    "bundled": true
+                },
+                "caseless": {
+                    "version": "0.12.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "co": {
+                    "version": "4.6.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "code-point-at": {
+                    "version": "1.1.0",
+                    "bundled": true
+                },
+                "combined-stream": {
+                    "version": "1.0.5",
+                    "bundled": true,
+                    "requires": {
+                        "delayed-stream": "1.0.0"
+                    }
+                },
+                "concat-map": {
+                    "version": "0.0.1",
+                    "bundled": true
+                },
+                "console-control-strings": {
+                    "version": "1.1.0",
+                    "bundled": true
+                },
+                "core-util-is": {
+                    "version": "1.0.2",
+                    "bundled": true
+                },
+                "cryptiles": {
+                    "version": "2.0.5",
+                    "bundled": true,
+                    "requires": {
+                        "boom": "2.10.1"
+                    }
+                },
+                "dashdash": {
+                    "version": "1.14.1",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "assert-plus": "1.0.0"
+                    },
+                    "dependencies": {
+                        "assert-plus": {
+                            "version": "1.0.0",
+                            "bundled": true,
+                            "optional": true
+                        }
+                    }
+                },
+                "debug": {
+                    "version": "2.6.8",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "ms": "2.0.0"
+                    }
+                },
+                "deep-extend": {
+                    "version": "0.4.2",
+                    "bundled": true,
+                    "optional": true
+                },
+                "delayed-stream": {
+                    "version": "1.0.0",
+                    "bundled": true
+                },
+                "delegates": {
+                    "version": "1.0.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "detect-libc": {
+                    "version": "1.0.2",
+                    "bundled": true,
+                    "optional": true
+                },
+                "ecc-jsbn": {
+                    "version": "0.1.1",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "jsbn": "0.1.1"
+                    }
+                },
+                "extend": {
+                    "version": "3.0.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "extsprintf": {
+                    "version": "1.0.2",
+                    "bundled": true
+                },
+                "forever-agent": {
+                    "version": "0.6.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "form-data": {
+                    "version": "2.1.4",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "asynckit": "0.4.0",
+                        "combined-stream": "1.0.5",
+                        "mime-types": "2.1.15"
+                    }
+                },
+                "fs.realpath": {
+                    "version": "1.0.0",
+                    "bundled": true
+                },
+                "fstream": {
+                    "version": "1.0.11",
+                    "bundled": true,
+                    "requires": {
+                        "graceful-fs": "4.1.11",
+                        "inherits": "2.0.3",
+                        "mkdirp": "0.5.1",
+                        "rimraf": "2.6.1"
+                    }
+                },
+                "fstream-ignore": {
+                    "version": "1.0.5",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "fstream": "1.0.11",
+                        "inherits": "2.0.3",
+                        "minimatch": "3.0.4"
+                    }
+                },
+                "gauge": {
+                    "version": "2.7.4",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "aproba": "1.1.1",
+                        "console-control-strings": "1.1.0",
+                        "has-unicode": "2.0.1",
+                        "object-assign": "4.1.1",
+                        "signal-exit": "3.0.2",
+                        "string-width": "1.0.2",
+                        "strip-ansi": "3.0.1",
+                        "wide-align": "1.1.2"
+                    }
+                },
+                "getpass": {
+                    "version": "0.1.7",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "assert-plus": "1.0.0"
+                    },
+                    "dependencies": {
+                        "assert-plus": {
+                            "version": "1.0.0",
+                            "bundled": true,
+                            "optional": true
+                        }
+                    }
+                },
+                "glob": {
+                    "version": "7.1.2",
+                    "bundled": true,
+                    "requires": {
+                        "fs.realpath": "1.0.0",
+                        "inflight": "1.0.6",
+                        "inherits": "2.0.3",
+                        "minimatch": "3.0.4",
+                        "once": "1.4.0",
+                        "path-is-absolute": "1.0.1"
+                    }
+                },
+                "graceful-fs": {
+                    "version": "4.1.11",
+                    "bundled": true
+                },
+                "har-schema": {
+                    "version": "1.0.5",
+                    "bundled": true,
+                    "optional": true
+                },
+                "har-validator": {
+                    "version": "4.2.1",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "ajv": "4.11.8",
+                        "har-schema": "1.0.5"
+                    }
+                },
+                "has-unicode": {
+                    "version": "2.0.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "hawk": {
+                    "version": "3.1.3",
+                    "bundled": true,
+                    "requires": {
+                        "boom": "2.10.1",
+                        "cryptiles": "2.0.5",
+                        "hoek": "2.16.3",
+                        "sntp": "1.0.9"
+                    }
+                },
+                "hoek": {
+                    "version": "2.16.3",
+                    "bundled": true
+                },
+                "http-signature": {
+                    "version": "1.1.1",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "assert-plus": "0.2.0",
+                        "jsprim": "1.4.0",
+                        "sshpk": "1.13.0"
+                    }
+                },
+                "inflight": {
+                    "version": "1.0.6",
+                    "bundled": true,
+                    "requires": {
+                        "once": "1.4.0",
+                        "wrappy": "1.0.2"
+                    }
+                },
+                "inherits": {
+                    "version": "2.0.3",
+                    "bundled": true
+                },
+                "ini": {
+                    "version": "1.3.4",
+                    "bundled": true,
+                    "optional": true
+                },
+                "is-fullwidth-code-point": {
+                    "version": "1.0.0",
+                    "bundled": true,
+                    "requires": {
+                        "number-is-nan": "1.0.1"
+                    }
+                },
+                "is-typedarray": {
+                    "version": "1.0.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "isarray": {
+                    "version": "1.0.0",
+                    "bundled": true
+                },
+                "isstream": {
+                    "version": "0.1.2",
+                    "bundled": true,
+                    "optional": true
+                },
+                "jodid25519": {
+                    "version": "1.0.2",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "jsbn": "0.1.1"
+                    }
+                },
+                "jsbn": {
+                    "version": "0.1.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "json-schema": {
+                    "version": "0.2.3",
+                    "bundled": true,
+                    "optional": true
+                },
+                "json-stable-stringify": {
+                    "version": "1.0.1",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "jsonify": "0.0.0"
+                    }
+                },
+                "json-stringify-safe": {
+                    "version": "5.0.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "jsonify": {
+                    "version": "0.0.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "jsprim": {
+                    "version": "1.4.0",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "assert-plus": "1.0.0",
+                        "extsprintf": "1.0.2",
+                        "json-schema": "0.2.3",
+                        "verror": "1.3.6"
+                    },
+                    "dependencies": {
+                        "assert-plus": {
+                            "version": "1.0.0",
+                            "bundled": true,
+                            "optional": true
+                        }
+                    }
+                },
+                "mime-db": {
+                    "version": "1.27.0",
+                    "bundled": true
+                },
+                "mime-types": {
+                    "version": "2.1.15",
+                    "bundled": true,
+                    "requires": {
+                        "mime-db": "1.27.0"
+                    }
+                },
+                "minimatch": {
+                    "version": "3.0.4",
+                    "bundled": true,
+                    "requires": {
+                        "brace-expansion": "1.1.7"
+                    }
+                },
+                "minimist": {
+                    "version": "0.0.8",
+                    "bundled": true
+                },
+                "mkdirp": {
+                    "version": "0.5.1",
+                    "bundled": true,
+                    "requires": {
+                        "minimist": "0.0.8"
+                    }
+                },
+                "ms": {
+                    "version": "2.0.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "node-pre-gyp": {
+                    "version": "0.6.39",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "detect-libc": "1.0.2",
+                        "hawk": "3.1.3",
+                        "mkdirp": "0.5.1",
+                        "nopt": "4.0.1",
+                        "npmlog": "4.1.0",
+                        "rc": "1.2.1",
+                        "request": "2.81.0",
+                        "rimraf": "2.6.1",
+                        "semver": "5.3.0",
+                        "tar": "2.2.1",
+                        "tar-pack": "3.4.0"
+                    }
+                },
+                "nopt": {
+                    "version": "4.0.1",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "abbrev": "1.1.0",
+                        "osenv": "0.1.4"
+                    }
+                },
+                "npmlog": {
+                    "version": "4.1.0",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "are-we-there-yet": "1.1.4",
+                        "console-control-strings": "1.1.0",
+                        "gauge": "2.7.4",
+                        "set-blocking": "2.0.0"
+                    }
+                },
+                "number-is-nan": {
+                    "version": "1.0.1",
+                    "bundled": true
+                },
+                "oauth-sign": {
+                    "version": "0.8.2",
+                    "bundled": true,
+                    "optional": true
+                },
+                "object-assign": {
+                    "version": "4.1.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "once": {
+                    "version": "1.4.0",
+                    "bundled": true,
+                    "requires": {
+                        "wrappy": "1.0.2"
+                    }
+                },
+                "os-homedir": {
+                    "version": "1.0.2",
+                    "bundled": true,
+                    "optional": true
+                },
+                "os-tmpdir": {
+                    "version": "1.0.2",
+                    "bundled": true,
+                    "optional": true
+                },
+                "osenv": {
+                    "version": "0.1.4",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "os-homedir": "1.0.2",
+                        "os-tmpdir": "1.0.2"
+                    }
+                },
+                "path-is-absolute": {
+                    "version": "1.0.1",
+                    "bundled": true
+                },
+                "performance-now": {
+                    "version": "0.2.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "process-nextick-args": {
+                    "version": "1.0.7",
+                    "bundled": true
+                },
+                "punycode": {
+                    "version": "1.4.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "qs": {
+                    "version": "6.4.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "rc": {
+                    "version": "1.2.1",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "deep-extend": "0.4.2",
+                        "ini": "1.3.4",
+                        "minimist": "1.2.0",
+                        "strip-json-comments": "2.0.1"
+                    },
+                    "dependencies": {
+                        "minimist": {
+                            "version": "1.2.0",
+                            "bundled": true,
+                            "optional": true
+                        }
+                    }
+                },
+                "readable-stream": {
+                    "version": "2.2.9",
+                    "bundled": true,
+                    "requires": {
+                        "buffer-shims": "1.0.0",
+                        "core-util-is": "1.0.2",
+                        "inherits": "2.0.3",
+                        "isarray": "1.0.0",
+                        "process-nextick-args": "1.0.7",
+                        "string_decoder": "1.0.1",
+                        "util-deprecate": "1.0.2"
+                    }
+                },
+                "request": {
+                    "version": "2.81.0",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "aws-sign2": "0.6.0",
+                        "aws4": "1.6.0",
+                        "caseless": "0.12.0",
+                        "combined-stream": "1.0.5",
+                        "extend": "3.0.1",
+                        "forever-agent": "0.6.1",
+                        "form-data": "2.1.4",
+                        "har-validator": "4.2.1",
+                        "hawk": "3.1.3",
+                        "http-signature": "1.1.1",
+                        "is-typedarray": "1.0.0",
+                        "isstream": "0.1.2",
+                        "json-stringify-safe": "5.0.1",
+                        "mime-types": "2.1.15",
+                        "oauth-sign": "0.8.2",
+                        "performance-now": "0.2.0",
+                        "qs": "6.4.0",
+                        "safe-buffer": "5.0.1",
+                        "stringstream": "0.0.5",
+                        "tough-cookie": "2.3.2",
+                        "tunnel-agent": "0.6.0",
+                        "uuid": "3.0.1"
+                    }
+                },
+                "rimraf": {
+                    "version": "2.6.1",
+                    "bundled": true,
+                    "requires": {
+                        "glob": "7.1.2"
+                    }
+                },
+                "safe-buffer": {
+                    "version": "5.0.1",
+                    "bundled": true
+                },
+                "semver": {
+                    "version": "5.3.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "set-blocking": {
+                    "version": "2.0.0",
+                    "bundled": true,
+                    "optional": true
+                },
+                "signal-exit": {
+                    "version": "3.0.2",
+                    "bundled": true,
+                    "optional": true
+                },
+                "sntp": {
+                    "version": "1.0.9",
+                    "bundled": true,
+                    "requires": {
+                        "hoek": "2.16.3"
+                    }
+                },
+                "sshpk": {
+                    "version": "1.13.0",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "asn1": "0.2.3",
+                        "assert-plus": "1.0.0",
+                        "bcrypt-pbkdf": "1.0.1",
+                        "dashdash": "1.14.1",
+                        "ecc-jsbn": "0.1.1",
+                        "getpass": "0.1.7",
+                        "jodid25519": "1.0.2",
+                        "jsbn": "0.1.1",
+                        "tweetnacl": "0.14.5"
+                    },
+                    "dependencies": {
+                        "assert-plus": {
+                            "version": "1.0.0",
+                            "bundled": true,
+                            "optional": true
+                        }
+                    }
+                },
+                "string-width": {
+                    "version": "1.0.2",
+                    "bundled": true,
+                    "requires": {
+                        "code-point-at": "1.1.0",
+                        "is-fullwidth-code-point": "1.0.0",
+                        "strip-ansi": "3.0.1"
+                    }
+                },
+                "string_decoder": {
+                    "version": "1.0.1",
+                    "bundled": true,
+                    "requires": {
+                        "safe-buffer": "5.0.1"
+                    }
+                },
+                "stringstream": {
+                    "version": "0.0.5",
+                    "bundled": true,
+                    "optional": true
+                },
+                "strip-ansi": {
+                    "version": "3.0.1",
+                    "bundled": true,
+                    "requires": {
+                        "ansi-regex": "2.1.1"
+                    }
+                },
+                "strip-json-comments": {
+                    "version": "2.0.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "tar": {
+                    "version": "2.2.1",
+                    "bundled": true,
+                    "requires": {
+                        "block-stream": "0.0.9",
+                        "fstream": "1.0.11",
+                        "inherits": "2.0.3"
+                    }
+                },
+                "tar-pack": {
+                    "version": "3.4.0",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "debug": "2.6.8",
+                        "fstream": "1.0.11",
+                        "fstream-ignore": "1.0.5",
+                        "once": "1.4.0",
+                        "readable-stream": "2.2.9",
+                        "rimraf": "2.6.1",
+                        "tar": "2.2.1",
+                        "uid-number": "0.0.6"
+                    }
+                },
+                "tough-cookie": {
+                    "version": "2.3.2",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "punycode": "1.4.1"
+                    }
+                },
+                "tunnel-agent": {
+                    "version": "0.6.0",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "safe-buffer": "5.0.1"
+                    }
+                },
+                "tweetnacl": {
+                    "version": "0.14.5",
+                    "bundled": true,
+                    "optional": true
+                },
+                "uid-number": {
+                    "version": "0.0.6",
+                    "bundled": true,
+                    "optional": true
+                },
+                "util-deprecate": {
+                    "version": "1.0.2",
+                    "bundled": true
+                },
+                "uuid": {
+                    "version": "3.0.1",
+                    "bundled": true,
+                    "optional": true
+                },
+                "verror": {
+                    "version": "1.3.6",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "extsprintf": "1.0.2"
+                    }
+                },
+                "wide-align": {
+                    "version": "1.1.2",
+                    "bundled": true,
+                    "optional": true,
+                    "requires": {
+                        "string-width": "1.0.2"
+                    }
+                },
+                "wrappy": {
+                    "version": "1.0.2",
+                    "bundled": true
+                }
+            }
+        },
         "fstream": {
             "version": "0.1.31",
             "resolved": "https://registry.npmjs.org/fstream/-/fstream-0.1.31.tgz",
@@ -4272,6 +5062,12 @@
             "resolved": "https://registry.npmjs.org/mute-stream/-/mute-stream-0.0.7.tgz",
             "integrity": "sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s="
         },
+        "nan": {
+            "version": "2.8.0",
+            "resolved": "https://registry.npmjs.org/nan/-/nan-2.8.0.tgz",
+            "integrity": "sha1-7XFfP+neArV6XmJS2QqWZ14fCFo=",
+            "optional": true
+        },
         "natives": {
             "version": "1.1.1",
             "resolved": "https://registry.npmjs.org/natives/-/natives-1.1.1.tgz",

dashboard/assets/package.json

@@ -1,7 +1,7 @@
 {
     "dependencies": {
         "babel-core": "^6.26.0",
-        "babel-eslint": "^8.0.3",
+        "babel-eslint": "^8.1.2",
         "babel-loader": "^7.1.2",
         "babel-plugin-transform-class-properties": "^6.24.1",
         "babel-plugin-transform-decorators-legacy": "^1.3.4",
@@ -12,28 +12,28 @@
         "babel-preset-stage-0": "^6.24.1",
         "babel-runtime": "^6.26.0",
         "classnames": "^2.2.5",
-        "css-loader": "^0.28.7",
+        "css-loader": "^0.28.8",
-        "eslint": "^4.13.1",
+        "eslint": "^4.15.0",
         "eslint-config-airbnb": "^16.1.0",
         "eslint-loader": "^1.9.0",
         "eslint-plugin-import": "^2.8.0",
         "eslint-plugin-jsx-a11y": "^6.0.3",
         "eslint-plugin-react": "^7.5.1",
-        "eslint-plugin-flowtype": "^2.40.1",
+        "eslint-plugin-flowtype": "^2.41.0",
         "file-loader": "^1.1.6",
-        "flow-bin": "^0.61.0",
+        "flow-bin": "^0.63.1",
         "flow-bin-loader": "^1.0.2",
         "flow-typed": "^2.2.3",
         "material-ui": "^1.0.0-beta.24",
         "material-ui-icons": "^1.0.0-beta.17",
         "path": "^0.12.7",
-        "ramda": "^0.25.0",
         "react": "^16.2.0",
         "react-dom": "^16.2.0",
         "react-fa": "^5.0.0",
         "react-transition-group": "^2.2.1",
-        "recharts": "^1.0.0-beta.6",
+        "recharts": "^1.0.0-beta.7",
         "style-loader": "^0.19.1",
+        "typeface-roboto": "^0.0.50",
         "url": "^0.11.0",
         "url-loader": "^0.6.2",
         "webpack": "^3.10.0"

dashboard/assets/types/content.jsx

@@ -16,9 +16,8 @@
 // You should have received a copy of the GNU Lesser General Public License
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
-import type {ChartEntry} from './message';
-
 export type Content = {
+	general: General,
 	home: Home,
 	chain: Chain,
 	txpool: TxPool,
@@ -27,9 +26,21 @@ export type Content = {
 	logs: Logs,
 };
 
+export type General = {
+	version: ?string,
+	commit: ?string,
+};
+
 export type Home = {
-    memory: Array<ChartEntry>,
+	memory: ChartEntries,
-    traffic: Array<ChartEntry>,
+	traffic: ChartEntries,
+};
+
+export type ChartEntries = Array<ChartEntry>;
+
+export type ChartEntry = {
+	time: Date,
+	value: number,
 };
 
 export type Chain = {

dashboard/assets/types/message.jsx

@@ -1,61 +0,0 @@
-// @flow
-
-// Copyright 2017 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-export type Message = {
-    home?: HomeMessage,
-    chain?: ChainMessage,
-    txpool?: TxPoolMessage,
-    network?: NetworkMessage,
-    system?: SystemMessage,
-    logs?: LogsMessage,
-};
-
-export type HomeMessage = {
-    memory?: Chart,
-    traffic?: Chart,
-};
-
-export type Chart = {
-    history?: Array<ChartEntry>,
-    new?: ChartEntry,
-};
-
-export type ChartEntry = {
-    time: Date,
-    value: number,
-};
-
-export type ChainMessage = {
-    /* TODO (kurkomisi) */
-};
-
-export type TxPoolMessage = {
-    /* TODO (kurkomisi) */
-};
-
-export type NetworkMessage = {
-    /* TODO (kurkomisi) */
-};
-
-export type SystemMessage = {
-    /* TODO (kurkomisi) */
-};
-
-export type LogsMessage = {
-    log: string,
-};

dashboard/assets/webpack.config.js

@@ -23,7 +23,7 @@ module.exports = {
 	},
 	entry:  './index',
 	output: {
-		path:     path.resolve(__dirname, 'public'),
+		path:     path.resolve(__dirname, ''),
 		filename: 'bundle.js',
 	},
 	plugins: [

dashboard/dashboard.go

@@ -16,10 +16,12 @@
 
 package dashboard
 
+//go:generate npm --prefix ./assets install
 //go:generate ./assets/node_modules/.bin/webpack --config ./assets/webpack.config.js --context ./assets
-//go:generate go-bindata -nometadata -o assets.go -prefix assets -nocompress -pkg dashboard assets/public/...
+//go:generate go-bindata -nometadata -o assets.go -prefix assets -nocompress -pkg dashboard assets/dashboard.html assets/bundle.js
-//go:generate gofmt -s -w assets.go
+//go:generate sh -c "sed 's#var _bundleJs#//nolint:misspell\\\n&#' assets.go > assets.go.tmp && mv assets.go.tmp assets.go"
-//go:generate sed -i "s#var _public#//nolint:misspell\\n&#" assets.go
+//go:generate sh -c "sed 's#var _dashboardHtml#//nolint:misspell\\\n&#' assets.go > assets.go.tmp && mv assets.go.tmp assets.go"
+//go:generate gofmt -w -s assets.go
 
 import (
 	"fmt"
@@ -33,6 +35,7 @@ import (
 
 	"github.com/EthereumCommonwealth/go-callisto/log"
 	"github.com/EthereumCommonwealth/go-callisto/p2p"
+	"github.com/EthereumCommonwealth/go-callisto/params"
 	"github.com/EthereumCommonwealth/go-callisto/rpc"
 	"github.com/rcrowley/go-metrics"
 	"golang.org/x/net/websocket"
@@ -52,6 +55,7 @@ type Dashboard struct {
 	listener net.Listener
 	conns    map[uint32]*client // Currently live websocket connections
 	charts   *HomeMessage
+	commit   string
 	lock     sync.RWMutex // Lock protecting the dashboard's internals
 
 	quit chan chan error // Channel used for graceful exit
@@ -66,15 +70,16 @@ type client struct {
 }
 
 // New creates a new dashboard instance with the given configuration.
-func New(config *Config) (*Dashboard, error) {
+func New(config *Config, commit string) (*Dashboard, error) {
 	return &Dashboard{
 		conns:  make(map[uint32]*client),
 		config: config,
 		quit:   make(chan chan error),
 		charts: &HomeMessage{
-			Memory:  &Chart{},
+			Memory:  ChartEntries{},
-			Traffic: &Chart{},
+			Traffic: ChartEntries{},
 		},
+		commit: commit,
 	}, nil
 }
 
@@ -86,6 +91,8 @@ func (db *Dashboard) APIs() []rpc.API { return nil }
 
 // Start implements node.Service, starting the data collection thread and the listening server of the dashboard.
 func (db *Dashboard) Start(server *p2p.Server) error {
+	log.Info("Starting dashboard")
+
 	db.wg.Add(2)
 	go db.collectData()
 	go db.collectLogs() // In case of removing this line change 2 back to 1 in wg.Add.
@@ -159,7 +166,7 @@ func (db *Dashboard) webHandler(w http.ResponseWriter, r *http.Request) {
 		w.Write(blob)
 		return
 	}
-	blob, err := Asset(filepath.Join("public", path))
+	blob, err := Asset(path[1:])
 	if err != nil {
 		log.Warn("Failed to load the asset", "path", path, "err", err)
 		http.Error(w, "not found", http.StatusNotFound)
@@ -196,15 +203,20 @@ func (db *Dashboard) apiHandler(conn *websocket.Conn) {
 			}
 		}
 	}()
+
+	versionMeta := ""
+	if len(params.VersionMeta) > 0 {
+		versionMeta = fmt.Sprintf(" (%s)", params.VersionMeta)
+	}
 	// Send the past data.
 	client.msg <- Message{
+		General: &GeneralMessage{
+			Version: fmt.Sprintf("v%d.%d.%d%s", params.VersionMajor, params.VersionMinor, params.VersionPatch, versionMeta),
+			Commit:  db.commit,
+		},
 		Home: &HomeMessage{
-			Memory: &Chart{
+			Memory:  db.charts.Memory,
-				History: db.charts.Memory.History,
+			Traffic: db.charts.Traffic,
-			},
-			Traffic: &Chart{
-				History: db.charts.Traffic.History,
-			},
 		},
 	}
 	// Start tracking the connection and drop at connection loss.
@@ -248,24 +260,20 @@ func (db *Dashboard) collectData() {
 				Value: inboundTraffic,
 			}
 			first := 0
-			if len(db.charts.Memory.History) == memorySampleLimit {
+			if len(db.charts.Memory) == memorySampleLimit {
 				first = 1
 			}
-			db.charts.Memory.History = append(db.charts.Memory.History[first:], memory)
+			db.charts.Memory = append(db.charts.Memory[first:], memory)
 			first = 0
-			if len(db.charts.Traffic.History) == trafficSampleLimit {
+			if len(db.charts.Traffic) == trafficSampleLimit {
 				first = 1
 			}
-			db.charts.Traffic.History = append(db.charts.Traffic.History[first:], traffic)
+			db.charts.Traffic = append(db.charts.Traffic[first:], traffic)
 
 			db.sendToAll(&Message{
 				Home: &HomeMessage{
-					Memory: &Chart{
+					Memory:  ChartEntries{memory},
-						New: memory,
+					Traffic: ChartEntries{traffic},
-					},
-					Traffic: &Chart{
-						New: traffic,
-					},
 				},
 			})
 		}
@@ -286,7 +294,7 @@ func (db *Dashboard) collectLogs() {
 		case <-time.After(db.config.Refresh / 2):
 			db.sendToAll(&Message{
 				Logs: &LogsMessage{
-					Log: fmt.Sprintf("%-4d: This is a fake log.", id),
+					Log: []string{fmt.Sprintf("%-4d: This is a fake log.", id)},
 				},
 			})
 			id++

dashboard/message.go

@@ -19,6 +19,7 @@ package dashboard
 import "time"
 
 type Message struct {
+	General *GeneralMessage `json:"general,omitempty"`
 	Home    *HomeMessage    `json:"home,omitempty"`
 	Chain   *ChainMessage   `json:"chain,omitempty"`
 	TxPool  *TxPoolMessage  `json:"txpool,omitempty"`
@@ -27,16 +28,18 @@ type Message struct {
 	Logs    *LogsMessage    `json:"logs,omitempty"`
 }
 
-type HomeMessage struct {
+type GeneralMessage struct {
-	Memory  *Chart `json:"memory,omitempty"`
+	Version string `json:"version,omitempty"`
-	Traffic *Chart `json:"traffic,omitempty"`
+	Commit  string `json:"commit,omitempty"`
 }
 
-type Chart struct {
+type HomeMessage struct {
-	History []*ChartEntry `json:"history,omitempty"`
+	Memory  ChartEntries `json:"memory,omitempty"`
-	New     *ChartEntry   `json:"new,omitempty"`
+	Traffic ChartEntries `json:"traffic,omitempty"`
 }
 
+type ChartEntries []*ChartEntry
+
 type ChartEntry struct {
 	Time  time.Time `json:"time,omitempty"`
 	Value float64   `json:"value,omitempty"`
@@ -59,5 +62,5 @@ type SystemMessage struct {
 }
 
 type LogsMessage struct {
-	Log string `json:"log,omitempty"`
+	Log []string `json:"log,omitempty"`
 }

eth/config.go

@@ -49,8 +49,8 @@ var DefaultConfig = Config{
 
 	TxPool: core.DefaultTxPoolConfig,
 	GPO: gasprice.Config{
-		Blocks:     10,
+		Blocks:     20,
-		Percentile: 50,
+		Percentile: 60,
 	},
 }
 

eth/gasprice/gasprice.go

@@ -23,6 +23,7 @@ import (
 	"sync"
 
 	"github.com/EthereumCommonwealth/go-callisto/common"
+	"github.com/EthereumCommonwealth/go-callisto/core/types"
 	"github.com/EthereumCommonwealth/go-callisto/internal/ethapi"
 	"github.com/EthereumCommonwealth/go-callisto/params"
 	"github.com/EthereumCommonwealth/go-callisto/rpc"
@@ -101,9 +102,9 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
 	ch := make(chan getBlockPricesResult, gpo.checkBlocks)
 	sent := 0
 	exp := 0
-	var txPrices []*big.Int
+	var blockPrices []*big.Int
 	for sent < gpo.checkBlocks && blockNum > 0 {
-		go gpo.getBlockPrices(ctx, blockNum, ch)
+		go gpo.getBlockPrices(ctx, types.MakeSigner(gpo.backend.ChainConfig(), big.NewInt(int64(blockNum))), blockNum, ch)
 		sent++
 		exp++
 		blockNum--
@@ -115,8 +116,8 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
 			return lastPrice, res.err
 		}
 		exp--
-		if len(res.prices) > 0 {
+		if res.price != nil {
-			txPrices = append(txPrices, res.prices...)
+			blockPrices = append(blockPrices, res.price)
 			continue
 		}
 		if maxEmpty > 0 {
@@ -124,16 +125,16 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
 			continue
 		}
 		if blockNum > 0 && sent < gpo.maxBlocks {
-			go gpo.getBlockPrices(ctx, blockNum, ch)
+			go gpo.getBlockPrices(ctx, types.MakeSigner(gpo.backend.ChainConfig(), big.NewInt(int64(blockNum))), blockNum, ch)
 			sent++
 			exp++
 			blockNum--
 		}
 	}
 	price := lastPrice
-	if len(txPrices) > 0 {
+	if len(blockPrices) > 0 {
-		sort.Sort(bigIntArray(txPrices))
+		sort.Sort(bigIntArray(blockPrices))
-		price = txPrices[(len(txPrices)-1)*gpo.percentile/100]
+		price = blockPrices[(len(blockPrices)-1)*gpo.percentile/100]
 	}
 	if price.Cmp(maxPrice) > 0 {
 		price = new(big.Int).Set(maxPrice)
@@ -147,24 +148,38 @@ func (gpo *Oracle) SuggestPrice(ctx context.Context) (*big.Int, error) {
 }
 
 type getBlockPricesResult struct {
-	prices []*big.Int
+	price *big.Int
 	err   error
 }
 
-// getLowestPrice calculates the lowest transaction gas price in a given block
+type transactionsByGasPrice []*types.Transaction
+
+func (t transactionsByGasPrice) Len() int           { return len(t) }
+func (t transactionsByGasPrice) Swap(i, j int)      { t[i], t[j] = t[j], t[i] }
+func (t transactionsByGasPrice) Less(i, j int) bool { return t[i].GasPrice().Cmp(t[j].GasPrice()) < 0 }
+
+// getBlockPrices calculates the lowest transaction gas price in a given block
 // and sends it to the result channel. If the block is empty, price is nil.
-func (gpo *Oracle) getBlockPrices(ctx context.Context, blockNum uint64, ch chan getBlockPricesResult) {
+func (gpo *Oracle) getBlockPrices(ctx context.Context, signer types.Signer, blockNum uint64, ch chan getBlockPricesResult) {
 	block, err := gpo.backend.BlockByNumber(ctx, rpc.BlockNumber(blockNum))
 	if block == nil {
 		ch <- getBlockPricesResult{nil, err}
 		return
 	}
-	txs := block.Transactions()
+
-	prices := make([]*big.Int, len(txs))
+	blockTxs := block.Transactions()
-	for i, tx := range txs {
+	txs := make([]*types.Transaction, len(blockTxs))
-		prices[i] = tx.GasPrice()
+	copy(txs, blockTxs)
+	sort.Sort(transactionsByGasPrice(txs))
+
+	for _, tx := range txs {
+		sender, err := types.Sender(signer, tx)
+		if err == nil && sender != block.Coinbase() {
+			ch <- getBlockPricesResult{tx.GasPrice(), nil}
+			return
 		}
-	ch <- getBlockPricesResult{prices, nil}
+	}
+	ch <- getBlockPricesResult{nil, nil}
 }
 
 type bigIntArray []*big.Int

eth/gen_config.go

@@ -13,6 +13,8 @@ import (
 	"github.com/EthereumCommonwealth/go-callisto/eth/gasprice"
 )
 
+var _ = (*configMarshaling)(nil)
+
 func (c Config) MarshalTOML() (interface{}, error) {
 	type Config struct {
 		Genesis                 *core.Genesis `toml:",omitempty"`
@@ -20,7 +22,6 @@ func (c Config) MarshalTOML() (interface{}, error) {
 		SyncMode                downloader.SyncMode
 		LightServ               int  `toml:",omitempty"`
 		LightPeers              int  `toml:",omitempty"`
-		MaxPeers                int  `toml:"-"`
 		SkipBcVersionCheck      bool `toml:"-"`
 		DatabaseHandles         int  `toml:"-"`
 		DatabaseCache           int
@@ -28,17 +29,11 @@ func (c Config) MarshalTOML() (interface{}, error) {
 		MinerThreads            int            `toml:",omitempty"`
 		ExtraData               hexutil.Bytes  `toml:",omitempty"`
 		GasPrice                *big.Int
-		EthashCacheDir          string
+		Ethash                  ethash.Config
-		EthashCachesInMem       int
-		EthashCachesOnDisk      int
-		EthashDatasetDir        string
-		EthashDatasetsInMem     int
-		EthashDatasetsOnDisk    int
 		TxPool                  core.TxPoolConfig
 		GPO                     gasprice.Config
 		EnablePreimageRecording bool
 		DocRoot                 string `toml:"-"`
-		PowMode                 ethash.Mode `toml:"-"`
 	}
 	var enc Config
 	enc.Genesis = c.Genesis
@@ -53,17 +48,11 @@ func (c Config) MarshalTOML() (interface{}, error) {
 	enc.MinerThreads = c.MinerThreads
 	enc.ExtraData = c.ExtraData
 	enc.GasPrice = c.GasPrice
-	enc.EthashCacheDir = c.Ethash.CacheDir
+	enc.Ethash = c.Ethash
-	enc.EthashCachesInMem = c.Ethash.CachesInMem
-	enc.EthashCachesOnDisk = c.Ethash.CachesOnDisk
-	enc.EthashDatasetDir = c.Ethash.DatasetDir
-	enc.EthashDatasetsInMem = c.Ethash.DatasetsInMem
-	enc.EthashDatasetsOnDisk = c.Ethash.DatasetsOnDisk
 	enc.TxPool = c.TxPool
 	enc.GPO = c.GPO
 	enc.EnablePreimageRecording = c.EnablePreimageRecording
 	enc.DocRoot = c.DocRoot
-	enc.PowMode = c.Ethash.PowMode
 	return &enc, nil
 }
 
@@ -74,25 +63,18 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
 		SyncMode                *downloader.SyncMode
 		LightServ               *int  `toml:",omitempty"`
 		LightPeers              *int  `toml:",omitempty"`
-		MaxPeers                *int  `toml:"-"`
 		SkipBcVersionCheck      *bool `toml:"-"`
 		DatabaseHandles         *int  `toml:"-"`
 		DatabaseCache           *int
 		Etherbase               *common.Address `toml:",omitempty"`
 		MinerThreads            *int            `toml:",omitempty"`
-		ExtraData               hexutil.Bytes   `toml:",omitempty"`
+		ExtraData               *hexutil.Bytes  `toml:",omitempty"`
 		GasPrice                *big.Int
-		EthashCacheDir          *string
+		Ethash                  *ethash.Config
-		EthashCachesInMem       *int
-		EthashCachesOnDisk      *int
-		EthashDatasetDir        *string
-		EthashDatasetsInMem     *int
-		EthashDatasetsOnDisk    *int
 		TxPool                  *core.TxPoolConfig
 		GPO                     *gasprice.Config
 		EnablePreimageRecording *bool
 		DocRoot                 *string `toml:"-"`
-		PowMode                 *ethash.Mode `toml:"-"`
 	}
 	var dec Config
 	if err := unmarshal(&dec); err != nil {
@@ -129,28 +111,13 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
 		c.MinerThreads = *dec.MinerThreads
 	}
 	if dec.ExtraData != nil {
-		c.ExtraData = dec.ExtraData
+		c.ExtraData = *dec.ExtraData
 	}
 	if dec.GasPrice != nil {
 		c.GasPrice = dec.GasPrice
 	}
-	if dec.EthashCacheDir != nil {
+	if dec.Ethash != nil {
-		c.Ethash.CacheDir = *dec.EthashCacheDir
+		c.Ethash = *dec.Ethash
-	}
-	if dec.EthashCachesInMem != nil {
-		c.Ethash.CachesInMem = *dec.EthashCachesInMem
-	}
-	if dec.EthashCachesOnDisk != nil {
-		c.Ethash.CachesOnDisk = *dec.EthashCachesOnDisk
-	}
-	if dec.EthashDatasetDir != nil {
-		c.Ethash.DatasetDir = *dec.EthashDatasetDir
-	}
-	if dec.EthashDatasetsInMem != nil {
-		c.Ethash.DatasetsInMem = *dec.EthashDatasetsInMem
-	}
-	if dec.EthashDatasetsOnDisk != nil {
-		c.Ethash.DatasetsOnDisk = *dec.EthashDatasetsOnDisk
 	}
 	if dec.TxPool != nil {
 		c.TxPool = *dec.TxPool
@@ -164,8 +131,5 @@ func (c *Config) UnmarshalTOML(unmarshal func(interface{}) error) error {
 	if dec.DocRoot != nil {
 		c.DocRoot = *dec.DocRoot
 	}
-	if dec.PowMode != nil {
-		c.Ethash.PowMode = *dec.PowMode
-	}
 	return nil
 }

eth/tracers/internal/tracers/assets.go

@@ -1,4 +1,4 @@
-// Code generated by go-bindata.
+// Code generated by go-bindata. DO NOT EDIT.
 // sources:
 // 4byte_tracer.js
 // call_tracer.js
@@ -6,7 +6,6 @@
 // noop_tracer.js
 // opcount_tracer.js
 // prestate_tracer.js
-// DO NOT EDIT!
 
 package tracers
 
@@ -197,8 +196,8 @@ func prestate_tracerJs() (*asset, error) {
 // It returns an error if the asset could not be found or
 // could not be loaded.
 func Asset(name string) ([]byte, error) {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	if f, ok := _bindata[cannonicalName]; ok {
+	if f, ok := _bindata[canonicalName]; ok {
 		a, err := f()
 		if err != nil {
 			return nil, fmt.Errorf("Asset %s can't read by error: %v", name, err)
@@ -223,8 +222,8 @@ func MustAsset(name string) []byte {
 // It returns an error if the asset could not be found or
 // could not be loaded.
 func AssetInfo(name string) (os.FileInfo, error) {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	if f, ok := _bindata[cannonicalName]; ok {
+	if f, ok := _bindata[canonicalName]; ok {
 		a, err := f()
 		if err != nil {
 			return nil, fmt.Errorf("AssetInfo %s can't read by error: %v", name, err)
@@ -246,10 +245,15 @@ func AssetNames() []string {
 // _bindata is a table, holding each asset generator, mapped to its name.
 var _bindata = map[string]func() (*asset, error){
 	"4byte_tracer.js": _4byte_tracerJs,
+
 	"call_tracer.js": call_tracerJs,
+
 	"evmdis_tracer.js": evmdis_tracerJs,
+
 	"noop_tracer.js": noop_tracerJs,
+
 	"opcount_tracer.js": opcount_tracerJs,
+
 	"prestate_tracer.js": prestate_tracerJs,
 }
 
@@ -269,8 +273,8 @@ var _bindata = map[string]func() (*asset, error){
 func AssetDir(name string) ([]string, error) {
 	node := _bintree
 	if len(name) != 0 {
-		cannonicalName := strings.Replace(name, "\\", "/", -1)
+		canonicalName := strings.Replace(name, "\\", "/", -1)
-		pathList := strings.Split(cannonicalName, "/")
+		pathList := strings.Split(canonicalName, "/")
 		for _, p := range pathList {
 			node = node.Children[p]
 			if node == nil {
@@ -320,11 +324,7 @@ func RestoreAsset(dir, name string) error {
 	if err != nil {
 		return err
 	}
-	err = os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
+	return os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
-	if err != nil {
-		return err
-	}
-	return nil
 }
 
 // RestoreAssets restores an asset under the given directory recursively
@@ -345,6 +345,6 @@ func RestoreAssets(dir, name string) error {
 }
 
 func _filePath(dir, name string) string {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
+	return filepath.Join(append([]string{dir}, strings.Split(canonicalName, "/")...)...)
 }

ethstats/ethstats.go

@@ -613,6 +613,7 @@ func (s *Service) reportHistory(conn *websocket.Conn, list []uint64) error {
 		}
 		// Ran out of blocks, cut the report short and send
 		history = history[len(history)-i:]
+		break
 	}
 	// Assemble the history report and send it to the server
 	if len(history) > 0 {

internal/cmdtest/test_cmd.go

@@ -25,6 +25,7 @@ import (
 	"os"
 	"os/exec"
 	"regexp"
+	"strings"
 	"sync"
 	"testing"
 	"text/template"
@@ -141,9 +142,10 @@ func (tt *TestCmd) matchExactOutput(want []byte) error {
 // Note that an arbitrary amount of output may be consumed by the
 // regular expression. This usually means that expect cannot be used
 // after ExpectRegexp.
-func (tt *TestCmd) ExpectRegexp(resource string) (*regexp.Regexp, []string) {
+func (tt *TestCmd) ExpectRegexp(regex string) (*regexp.Regexp, []string) {
+	regex = strings.TrimPrefix(regex, "\n")
 	var (
-		re      = regexp.MustCompile(resource)
+		re      = regexp.MustCompile(regex)
 		rtee    = &runeTee{in: tt.stdout}
 		matches []int
 	)
@@ -151,7 +153,7 @@ func (tt *TestCmd) ExpectRegexp(resource string) (*regexp.Regexp, []string) {
 	output := rtee.buf.Bytes()
 	if matches == nil {
 		tt.Fatalf("Output did not match:\n---------------- (stdout text)\n%s\n---------------- (regular expression)\n%s",
-			output, resource)
+			output, regex)
 		return re, nil
 	}
 	tt.Logf("Matched stdout text:\n%s", output)

internal/jsre/deps/bindata.go

@@ -1,8 +1,7 @@
-// Code generated by go-bindata.
+// Code generated by go-bindata. DO NOT EDIT.
 // sources:
 // bignumber.js
 // web3.js
-// DO NOT EDIT!
 
 package deps
 
@@ -113,8 +112,8 @@ func web3Js() (*asset, error) {
 // It returns an error if the asset could not be found or
 // could not be loaded.
 func Asset(name string) ([]byte, error) {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	if f, ok := _bindata[cannonicalName]; ok {
+	if f, ok := _bindata[canonicalName]; ok {
 		a, err := f()
 		if err != nil {
 			return nil, fmt.Errorf("Asset %s can't read by error: %v", name, err)
@@ -139,8 +138,8 @@ func MustAsset(name string) []byte {
 // It returns an error if the asset could not be found or
 // could not be loaded.
 func AssetInfo(name string) (os.FileInfo, error) {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	if f, ok := _bindata[cannonicalName]; ok {
+	if f, ok := _bindata[canonicalName]; ok {
 		a, err := f()
 		if err != nil {
 			return nil, fmt.Errorf("AssetInfo %s can't read by error: %v", name, err)
@@ -162,6 +161,7 @@ func AssetNames() []string {
 // _bindata is a table, holding each asset generator, mapped to its name.
 var _bindata = map[string]func() (*asset, error){
 	"bignumber.js": bignumberJs,
+
 	"web3.js": web3Js,
 }
 
@@ -181,8 +181,8 @@ var _bindata = map[string]func() (*asset, error){
 func AssetDir(name string) ([]string, error) {
 	node := _bintree
 	if len(name) != 0 {
-		cannonicalName := strings.Replace(name, "\\", "/", -1)
+		canonicalName := strings.Replace(name, "\\", "/", -1)
-		pathList := strings.Split(cannonicalName, "/")
+		pathList := strings.Split(canonicalName, "/")
 		for _, p := range pathList {
 			node = node.Children[p]
 			if node == nil {
@@ -228,11 +228,7 @@ func RestoreAsset(dir, name string) error {
 	if err != nil {
 		return err
 	}
-	err = os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
+	return os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
-	if err != nil {
-		return err
-	}
-	return nil
 }
 
 // RestoreAssets restores an asset under the given directory recursively
@@ -253,6 +249,6 @@ func RestoreAssets(dir, name string) error {
 }
 
 func _filePath(dir, name string) string {
-	cannonicalName := strings.Replace(name, "\\", "/", -1)
+	canonicalName := strings.Replace(name, "\\", "/", -1)
-	return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
+	return filepath.Join(append([]string{dir}, strings.Split(canonicalName, "/")...)...)
 }

les/handler.go

@@ -846,8 +846,8 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 			}
 
 			if header := pm.blockchain.GetHeaderByNumber(req.BlockNum); header != nil {
-				sectionHead := core.GetCanonicalHash(pm.chainDb, (req.ChtNum+1)*light.ChtV1Frequency-1)
+				sectionHead := core.GetCanonicalHash(pm.chainDb, req.ChtNum*light.ChtV1Frequency-1)
-				if root := light.GetChtRoot(pm.chainDb, req.ChtNum, sectionHead); root != (common.Hash{}) {
+				if root := light.GetChtRoot(pm.chainDb, req.ChtNum-1, sectionHead); root != (common.Hash{}) {
 					if tr, _ := trie.New(root, trieDb); tr != nil {
 						var encNumber [8]byte
 						binary.BigEndian.PutUint64(encNumber[:], req.BlockNum)

les/peer.go

@@ -296,7 +296,7 @@ func (p *peer) RequestHelperTrieProofs(reqID, cost uint64, reqs []HelperTrieReq)
 			}
 			blockNum := binary.BigEndian.Uint64(req.Key)
 			// convert HelperTrie request to old CHT request
-			reqsV1[i] = ChtReq{ChtNum: (req.TrieIdx+1)*(light.ChtFrequency/light.ChtV1Frequency) - 1, BlockNum: blockNum, FromLevel: req.FromLevel}
+			reqsV1[i] = ChtReq{ChtNum: (req.TrieIdx + 1) * (light.ChtFrequency / light.ChtV1Frequency), BlockNum: blockNum, FromLevel: req.FromLevel}
 		}
 		return sendRequest(p.rw, GetHeaderProofsMsg, reqID, cost, reqsV1)
 	case lpv2:

miner/worker.go

@@ -512,6 +512,11 @@ func (env *Work) commitTransactions(mux *event.TypeMux, txs *types.TransactionsB
 	var coalescedLogs []*types.Log
 
 	for {
+		// If we don't have enough gas for any further transactions then we're done
+		if gp.Gas() < params.TxGas {
+			log.Trace("Not enough gas for further transactions", "gp", gp)
+			break
+		}
 		// Retrieve the next transaction and abort if all done
 		tx := txs.Peek()
 		if tx == nil {

p2p/discv5/nodeevent_string.go

@@ -1,8 +1,8 @@
-// Code generated by "stringer -type nodeEvent"; DO NOT EDIT
+// Code generated by "stringer -type=nodeEvent"; DO NOT EDIT.
 
 package discv5
 
-import "fmt"
+import "strconv"
 
 const (
 	_nodeEvent_name_0 = "invalidEventpingPacketpongPacketfindnodePacketneighborsPacketfindnodeHashPackettopicRegisterPackettopicQueryPackettopicNodesPacket"
@@ -22,6 +22,6 @@ func (i nodeEvent) String() string {
 		i -= 265
 		return _nodeEvent_name_1[_nodeEvent_index_1[i]:_nodeEvent_index_1[i+1]]
 	default:
-		return fmt.Sprintf("nodeEvent(%d)", i)
+		return "nodeEvent(" + strconv.FormatInt(int64(i), 10) + ")"
 	}
 }

tests/block_test_util.go

@@ -86,8 +86,8 @@ type btHeaderMarshaling struct {
 	ExtraData  hexutil.Bytes
 	Number     *math.HexOrDecimal256
 	Difficulty *math.HexOrDecimal256
-	GasLimit   *math.HexOrDecimal64
+	GasLimit   math.HexOrDecimal64
-	GasUsed    *math.HexOrDecimal64
+	GasUsed    math.HexOrDecimal64
 	Timestamp  *math.HexOrDecimal256
 }
 

tests/gen_btheader.go

@@ -47,8 +47,8 @@ func (b btHeader) MarshalJSON() ([]byte, error) {
 	enc.UncleHash = b.UncleHash
 	enc.ExtraData = b.ExtraData
 	enc.Difficulty = (*math.HexOrDecimal256)(b.Difficulty)
-	enc.GasLimit = (math.HexOrDecimal64)(b.GasLimit)
+	enc.GasLimit = math.HexOrDecimal64(b.GasLimit)
-	enc.GasUsed = (math.HexOrDecimal64)(b.GasUsed)
+	enc.GasUsed = math.HexOrDecimal64(b.GasUsed)
 	enc.Timestamp = (*math.HexOrDecimal256)(b.Timestamp)
 	return json.Marshal(&enc)
 }
@@ -66,7 +66,7 @@ func (b *btHeader) UnmarshalJSON(input []byte) error {
 		StateRoot        *common.Hash
 		TransactionsTrie *common.Hash
 		UncleHash        *common.Hash
-		ExtraData        hexutil.Bytes
+		ExtraData        *hexutil.Bytes
 		Difficulty       *math.HexOrDecimal256
 		GasLimit         *math.HexOrDecimal64
 		GasUsed          *math.HexOrDecimal64
@@ -110,7 +110,7 @@ func (b *btHeader) UnmarshalJSON(input []byte) error {
 		b.UncleHash = *dec.UncleHash
 	}
 	if dec.ExtraData != nil {
-		b.ExtraData = dec.ExtraData
+		b.ExtraData = *dec.ExtraData
 	}
 	if dec.Difficulty != nil {
 		b.Difficulty = (*big.Int)(dec.Difficulty)

tests/gen_sttransaction.go

@@ -46,7 +46,7 @@ func (s *stTransaction) UnmarshalJSON(input []byte) error {
 		Data       []string              `json:"data"`
 		GasLimit   []math.HexOrDecimal64 `json:"gasLimit"`
 		Value      []string              `json:"value"`
-		PrivateKey hexutil.Bytes         `json:"secretKey"`
+		PrivateKey *hexutil.Bytes        `json:"secretKey"`
 	}
 	var dec stTransaction
 	if err := json.Unmarshal(input, &dec); err != nil {
@@ -74,7 +74,7 @@ func (s *stTransaction) UnmarshalJSON(input []byte) error {
 		s.Value = dec.Value
 	}
 	if dec.PrivateKey != nil {
-		s.PrivateKey = dec.PrivateKey
+		s.PrivateKey = *dec.PrivateKey
 	}
 	return nil
 }

tests/gen_tttransaction.go

@@ -28,7 +28,7 @@ func (t ttTransaction) MarshalJSON() ([]byte, error) {
 	}
 	var enc ttTransaction
 	enc.Data = t.Data
-	enc.GasLimit = (math.HexOrDecimal64)(t.GasLimit)
+	enc.GasLimit = math.HexOrDecimal64(t.GasLimit)
 	enc.GasPrice = (*math.HexOrDecimal256)(t.GasPrice)
 	enc.Nonce = math.HexOrDecimal64(t.Nonce)
 	enc.Value = (*math.HexOrDecimal256)(t.Value)
@@ -41,7 +41,7 @@ func (t ttTransaction) MarshalJSON() ([]byte, error) {
 
 func (t *ttTransaction) UnmarshalJSON(input []byte) error {
 	type ttTransaction struct {
-		Data     hexutil.Bytes         `gencodec:"required"`
+		Data     *hexutil.Bytes        `gencodec:"required"`
 		GasLimit *math.HexOrDecimal64  `gencodec:"required"`
 		GasPrice *math.HexOrDecimal256 `gencodec:"required"`
 		Nonce    *math.HexOrDecimal64  `gencodec:"required"`
@@ -58,7 +58,7 @@ func (t *ttTransaction) UnmarshalJSON(input []byte) error {
 	if dec.Data == nil {
 		return errors.New("missing required field 'data' for ttTransaction")
 	}
-	t.Data = dec.Data
+	t.Data = *dec.Data
 	if dec.GasLimit == nil {
 		return errors.New("missing required field 'gasLimit' for ttTransaction")
 	}

tests/gen_vmexec.go

@@ -42,8 +42,8 @@ func (v *vmExec) UnmarshalJSON(input []byte) error {
 		Address  *common.UnprefixedAddress `json:"address"  gencodec:"required"`
 		Caller   *common.UnprefixedAddress `json:"caller"   gencodec:"required"`
 		Origin   *common.UnprefixedAddress `json:"origin"   gencodec:"required"`
-		Code     hexutil.Bytes             `json:"code"     gencodec:"required"`
+		Code     *hexutil.Bytes            `json:"code"     gencodec:"required"`
-		Data     hexutil.Bytes             `json:"data"     gencodec:"required"`
+		Data     *hexutil.Bytes            `json:"data"     gencodec:"required"`
 		Value    *math.HexOrDecimal256     `json:"value"    gencodec:"required"`
 		GasLimit *math.HexOrDecimal64      `json:"gas"      gencodec:"required"`
 		GasPrice *math.HexOrDecimal256     `json:"gasPrice" gencodec:"required"`
@@ -67,11 +67,11 @@ func (v *vmExec) UnmarshalJSON(input []byte) error {
 	if dec.Code == nil {
 		return errors.New("missing required field 'code' for vmExec")
 	}
-	v.Code = dec.Code
+	v.Code = *dec.Code
 	if dec.Data == nil {
 		return errors.New("missing required field 'data' for vmExec")
 	}
-	v.Data = dec.Data
+	v.Data = *dec.Data
 	if dec.Value == nil {
 		return errors.New("missing required field 'value' for vmExec")
 	}

trie/hasher.go

@@ -26,46 +26,27 @@ import (
 	"github.com/EthereumCommonwealth/go-callisto/rlp"
 )
 
-// calculator is a utility used by the hasher to calculate the hash value of the tree node.
+type hasher struct {
-type calculator struct {
+	tmp                  *bytes.Buffer
 	sha                  hash.Hash
-	buffer *bytes.Buffer
+	cachegen, cachelimit uint16
 }
 
-// calculatorPool is a set of temporary calculators that may be individually saved and retrieved.
+// hashers live in a global pool.
-var calculatorPool = sync.Pool{
+var hasherPool = sync.Pool{
 	New: func() interface{} {
-		return &calculator{buffer: new(bytes.Buffer), sha: sha3.NewKeccak256()}
+		return &hasher{tmp: new(bytes.Buffer), sha: sha3.NewKeccak256()}
 	},
 }
 
-// hasher hasher is used to calculate the hash value of the whole tree.
-type hasher struct {
-	cachegen   uint16
-	cachelimit uint16
-	threaded   bool
-	mu         sync.Mutex
-}
-
 func newHasher(cachegen, cachelimit uint16) *hasher {
-	h := &hasher{
+	h := hasherPool.Get().(*hasher)
-		cachegen:   cachegen,
+	h.cachegen, h.cachelimit = cachegen, cachelimit
-		cachelimit: cachelimit,
-	}
 	return h
 }
 
-// newCalculator retrieves a cleaned calculator from calculator pool.
+func returnHasherToPool(h *hasher) {
-func (h *hasher) newCalculator() *calculator {
+	hasherPool.Put(h)
-	calculator := calculatorPool.Get().(*calculator)
-	calculator.buffer.Reset()
-	calculator.sha.Reset()
-	return calculator
-}
-
-// returnCalculator returns a no longer used calculator to the pool.
-func (h *hasher) returnCalculator(calculator *calculator) {
-	calculatorPool.Put(calculator)
 }
 
 // hash collapses a node down into a hash node, also returning a copy of the
@@ -142,49 +123,16 @@ func (h *hasher) hashChildren(original node, db DatabaseWriter) (node, node, err
 		// Hash the full node's children, caching the newly hashed subtrees
 		collapsed, cached := n.copy(), n.copy()
 
-		// hashChild is a helper to hash a single child, which is called either on the
-		// same thread as the caller or in a goroutine for the toplevel branching.
-		hashChild := func(index int, wg *sync.WaitGroup) {
-			if wg != nil {
-				defer wg.Done()
-			}
-			// Ensure that nil children are encoded as empty strings.
-			if collapsed.Children[index] == nil {
-				collapsed.Children[index] = valueNode(nil)
-				return
-			}
-			// Hash all other children properly
-			var herr error
-			collapsed.Children[index], cached.Children[index], herr = h.hash(n.Children[index], db, false)
-			if herr != nil {
-				h.mu.Lock() // rarely if ever locked, no congenstion
-				err = herr
-				h.mu.Unlock()
-			}
-		}
-		// If we're not running in threaded mode yet, span a goroutine for each child
-		if !h.threaded {
-			// Disable further threading
-			h.threaded = true
-
-			// Hash all the children concurrently
-			var wg sync.WaitGroup
 		for i := 0; i < 16; i++ {
-				wg.Add(1)
+			if n.Children[i] != nil {
-				go hashChild(i, &wg)
+				collapsed.Children[i], cached.Children[i], err = h.hash(n.Children[i], db, false)
-			}
-			wg.Wait()
-
-			// Reenable threading for subsequent hash calls
-			h.threaded = false
-		} else {
-			for i := 0; i < 16; i++ {
-				hashChild(i, nil)
-			}
-		}
 				if err != nil {
 					return original, original, err
 				}
+			} else {
+				collapsed.Children[i] = valueNode(nil) // Ensure that nil children are encoded as empty strings.
+			}
+		}
 		cached.Children[16] = n.Children[16]
 		if collapsed.Children[16] == nil {
 			collapsed.Children[16] = valueNode(nil)
@@ -202,29 +150,24 @@ func (h *hasher) store(n node, db DatabaseWriter, force bool) (node, error) {
 	if _, isHash := n.(hashNode); n == nil || isHash {
 		return n, nil
 	}
-	calculator := h.newCalculator()
-	defer h.returnCalculator(calculator)
-
 	// Generate the RLP encoding of the node
-	if err := rlp.Encode(calculator.buffer, n); err != nil {
+	h.tmp.Reset()
+	if err := rlp.Encode(h.tmp, n); err != nil {
 		panic("encode error: " + err.Error())
 	}
-	if calculator.buffer.Len() < 32 && !force {
+
+	if h.tmp.Len() < 32 && !force {
 		return n, nil // Nodes smaller than 32 bytes are stored inside their parent
 	}
 	// Larger nodes are replaced by their hash and stored in the database.
 	hash, _ := n.cache()
 	if hash == nil {
-		calculator.sha.Write(calculator.buffer.Bytes())
+		h.sha.Reset()
-		hash = hashNode(calculator.sha.Sum(nil))
+		h.sha.Write(h.tmp.Bytes())
+		hash = hashNode(h.sha.Sum(nil))
 	}
 	if db != nil {
-		// db might be a leveldb batch, which is not safe for concurrent writes
+		return hash, db.Put(hash, h.tmp.Bytes())
-		h.mu.Lock()
-		err := db.Put(hash, calculator.buffer.Bytes())
-		h.mu.Unlock()
-
-		return hash, err
 	}
 	return hash, nil
 }

trie/secure_trie.go

@@ -199,10 +199,10 @@ func (t *SecureTrie) secKey(key []byte) []byte {
 // invalid on the next call to hashKey or secKey.
 func (t *SecureTrie) hashKey(key []byte) []byte {
 	h := newHasher(0, 0)
-	calculator := h.newCalculator()
+	h.sha.Reset()
-	calculator.sha.Write(key)
+	h.sha.Write(key)
-	buf := calculator.sha.Sum(t.hashKeyBuf[:0])
+	buf := h.sha.Sum(t.hashKeyBuf[:0])
-	h.returnCalculator(calculator)
+	returnHasherToPool(h)
 	return buf
 }
 

trie/trie.go

@@ -501,5 +501,6 @@ func (t *Trie) hashRoot(db DatabaseWriter) (node, node, error) {
 		return hashNode(emptyRoot.Bytes()), nil, nil
 	}
 	h := newHasher(t.cachegen, t.cachelimit)
+	defer returnHasherToPool(h)
 	return h.hash(t.root, db, true)
 }

whisper/whisperv5/gen_criteria_json.go

@@ -33,7 +33,7 @@ func (c *Criteria) UnmarshalJSON(input []byte) error {
 	type Criteria struct {
 		SymKeyID     *string        `json:"symKeyID"`
 		PrivateKeyID *string        `json:"privateKeyID"`
-		Sig          hexutil.Bytes `json:"sig"`
+		Sig          *hexutil.Bytes `json:"sig"`
 		MinPow       *float64       `json:"minPow"`
 		Topics       []TopicType    `json:"topics"`
 		AllowP2P     *bool          `json:"allowP2P"`
@@ -49,7 +49,7 @@ func (c *Criteria) UnmarshalJSON(input []byte) error {
 		c.PrivateKeyID = *dec.PrivateKeyID
 	}
 	if dec.Sig != nil {
-		c.Sig = dec.Sig
+		c.Sig = *dec.Sig
 	}
 	if dec.MinPow != nil {
 		c.MinPow = *dec.MinPow

whisper/whisperv5/gen_message_json.go

@@ -37,22 +37,22 @@ func (m Message) MarshalJSON() ([]byte, error) {
 
 func (m *Message) UnmarshalJSON(input []byte) error {
 	type Message struct {
-		Sig       hexutil.Bytes `json:"sig,omitempty"`
+		Sig       *hexutil.Bytes `json:"sig,omitempty"`
 		TTL       *uint32        `json:"ttl"`
 		Timestamp *uint32        `json:"timestamp"`
 		Topic     *TopicType     `json:"topic"`
-		Payload   hexutil.Bytes `json:"payload"`
+		Payload   *hexutil.Bytes `json:"payload"`
-		Padding   hexutil.Bytes `json:"padding"`
+		Padding   *hexutil.Bytes `json:"padding"`
 		PoW       *float64       `json:"pow"`
-		Hash      hexutil.Bytes `json:"hash"`
+		Hash      *hexutil.Bytes `json:"hash"`
-		Dst       hexutil.Bytes `json:"recipientPublicKey,omitempty"`
+		Dst       *hexutil.Bytes `json:"recipientPublicKey,omitempty"`
 	}
 	var dec Message
 	if err := json.Unmarshal(input, &dec); err != nil {
 		return err
 	}
 	if dec.Sig != nil {
-		m.Sig = dec.Sig
+		m.Sig = *dec.Sig
 	}
 	if dec.TTL != nil {
 		m.TTL = *dec.TTL
@@ -64,19 +64,19 @@ func (m *Message) UnmarshalJSON(input []byte) error {
 		m.Topic = *dec.Topic
 	}
 	if dec.Payload != nil {
-		m.Payload = dec.Payload
+		m.Payload = *dec.Payload
 	}
 	if dec.Padding != nil {
-		m.Padding = dec.Padding
+		m.Padding = *dec.Padding
 	}
 	if dec.PoW != nil {
 		m.PoW = *dec.PoW
 	}
 	if dec.Hash != nil {
-		m.Hash = dec.Hash
+		m.Hash = *dec.Hash
 	}
 	if dec.Dst != nil {
-		m.Dst = dec.Dst
+		m.Dst = *dec.Dst
 	}
 	return nil
 }

whisper/whisperv5/gen_newmessage_json.go

@@ -40,12 +40,12 @@ func (n NewMessage) MarshalJSON() ([]byte, error) {
 func (n *NewMessage) UnmarshalJSON(input []byte) error {
 	type NewMessage struct {
 		SymKeyID   *string        `json:"symKeyID"`
-		PublicKey  hexutil.Bytes `json:"pubKey"`
+		PublicKey  *hexutil.Bytes `json:"pubKey"`
 		Sig        *string        `json:"sig"`
 		TTL        *uint32        `json:"ttl"`
 		Topic      *TopicType     `json:"topic"`
-		Payload    hexutil.Bytes `json:"payload"`
+		Payload    *hexutil.Bytes `json:"payload"`
-		Padding    hexutil.Bytes `json:"padding"`
+		Padding    *hexutil.Bytes `json:"padding"`
 		PowTime    *uint32        `json:"powTime"`
 		PowTarget  *float64       `json:"powTarget"`
 		TargetPeer *string        `json:"targetPeer"`
@@ -58,7 +58,7 @@ func (n *NewMessage) UnmarshalJSON(input []byte) error {
 		n.SymKeyID = *dec.SymKeyID
 	}
 	if dec.PublicKey != nil {
-		n.PublicKey = dec.PublicKey
+		n.PublicKey = *dec.PublicKey
 	}
 	if dec.Sig != nil {
 		n.Sig = *dec.Sig
@@ -70,10 +70,10 @@ func (n *NewMessage) UnmarshalJSON(input []byte) error {
 		n.Topic = *dec.Topic
 	}
 	if dec.Payload != nil {
-		n.Payload = dec.Payload
+		n.Payload = *dec.Payload
 	}
 	if dec.Padding != nil {
-		n.Padding = dec.Padding
+		n.Padding = *dec.Padding
 	}
 	if dec.PowTime != nil {
 		n.PowTime = *dec.PowTime

whisper/whisperv6/api.go

@@ -116,12 +116,17 @@ func (api *PublicWhisperAPI) SetMaxMessageSize(ctx context.Context, size uint32)
 	return true, api.w.SetMaxMessageSize(size)
 }
 
-// SetMinPow sets the minimum PoW for a message before it is accepted.
+// SetMinPow sets the minimum PoW, and notifies the peers.
 func (api *PublicWhisperAPI) SetMinPoW(ctx context.Context, pow float64) (bool, error) {
 	return true, api.w.SetMinimumPoW(pow)
 }
 
-// MarkTrustedPeer marks a peer trusted. , which will allow it to send historic (expired) messages.
+// SetBloomFilter sets the new value of bloom filter, and notifies the peers.
+func (api *PublicWhisperAPI) SetBloomFilter(ctx context.Context, bloom hexutil.Bytes) (bool, error) {
+	return true, api.w.SetBloomFilter(bloom)
+}
+
+// MarkTrustedPeer marks a peer trusted, which will allow it to send historic (expired) messages.
 // Note: This function is not adding new nodes, the node needs to exists as a peer.
 func (api *PublicWhisperAPI) MarkTrustedPeer(ctx context.Context, enode string) (bool, error) {
 	n, err := discover.ParseNode(enode)

whisper/whisperv6/doc.go

@@ -35,7 +35,6 @@ import (
 )
 
 const (
-	EnvelopeVersion    = uint64(0)
 	ProtocolVersion    = uint64(6)
 	ProtocolVersionStr = "6.0"
 	ProtocolName       = "shh"
@@ -52,11 +51,14 @@ const (
 	paddingMask   = byte(3)
 	signatureFlag = byte(4)
 
-	TopicLength     = 4
+	TopicLength     = 4  // in bytes
-	signatureLength = 65
+	signatureLength = 65 // in bytes
-	aesKeyLength    = 32
+	aesKeyLength    = 32 // in bytes
-	AESNonceLength  = 12
+	AESNonceLength  = 12 // in bytes
-	keyIdSize       = 32
+	keyIdSize       = 32 // in bytes
+	bloomFilterSize = 64 // in bytes
+
+	EnvelopeHeaderLength = 20
 
 	MaxMessageSize        = uint32(10 * 1024 * 1024) // maximum accepted size of a message.
 	DefaultMaxMessageSize = uint32(1024 * 1024)
@@ -69,9 +71,7 @@ const (
 	transmissionCycle = 300 * time.Millisecond
 
 	DefaultTTL           = 50 // seconds
-	SynchAllowance = 10 // seconds
+	DefaultSyncAllowance = 10 // seconds
-
-	EnvelopeHeaderLength = 20
 )
 
 type unknownVersionError uint64

whisper/whisperv6/envelope.go

@@ -43,8 +43,10 @@ type Envelope struct {
 	Nonce  uint64
 
 	pow float64 // Message-specific PoW as described in the Whisper specification.
+
+	// the following variables should not be accessed directly, use the corresponding function instead: Hash(), Bloom()
 	hash  common.Hash // Cached hash of the envelope to avoid rehashing every time.
-	// Don't access hash directly, use Hash() function instead.
+	bloom []byte
 }
 
 // size returns the size of envelope as it is sent (i.e. public fields only)
@@ -227,3 +229,30 @@ func (e *Envelope) Open(watcher *Filter) (msg *ReceivedMessage) {
 	}
 	return msg
 }
+
+// Bloom maps 4-bytes Topic into 64-byte bloom filter with 3 bits set (at most).
+func (e *Envelope) Bloom() []byte {
+	if e.bloom == nil {
+		e.bloom = TopicToBloom(e.Topic)
+	}
+	return e.bloom
+}
+
+// TopicToBloom converts the topic (4 bytes) to the bloom filter (64 bytes)
+func TopicToBloom(topic TopicType) []byte {
+	b := make([]byte, bloomFilterSize)
+	var index [3]int
+	for j := 0; j < 3; j++ {
+		index[j] = int(topic[j])
+		if (topic[3] & (1 << uint(j))) != 0 {
+			index[j] += 256
+		}
+	}
+
+	for j := 0; j < 3; j++ {
+		byteIndex := index[j] / 8
+		bitIndex := index[j] % 8
+		b[byteIndex] = (1 << uint(bitIndex))
+	}
+	return b
+}

whisper/whisperv6/gen_criteria_json.go

@@ -33,7 +33,7 @@ func (c *Criteria) UnmarshalJSON(input []byte) error {
 	type Criteria struct {
 		SymKeyID     *string        `json:"symKeyID"`
 		PrivateKeyID *string        `json:"privateKeyID"`
-		Sig          hexutil.Bytes `json:"sig"`
+		Sig          *hexutil.Bytes `json:"sig"`
 		MinPow       *float64       `json:"minPow"`
 		Topics       []TopicType    `json:"topics"`
 		AllowP2P     *bool          `json:"allowP2P"`
@@ -49,7 +49,7 @@ func (c *Criteria) UnmarshalJSON(input []byte) error {
 		c.PrivateKeyID = *dec.PrivateKeyID
 	}
 	if dec.Sig != nil {
-		c.Sig = dec.Sig
+		c.Sig = *dec.Sig
 	}
 	if dec.MinPow != nil {
 		c.MinPow = *dec.MinPow

whisper/whisperv6/gen_message_json.go

@@ -37,22 +37,22 @@ func (m Message) MarshalJSON() ([]byte, error) {
 
 func (m *Message) UnmarshalJSON(input []byte) error {
 	type Message struct {
-		Sig       hexutil.Bytes `json:"sig,omitempty"`
+		Sig       *hexutil.Bytes `json:"sig,omitempty"`
 		TTL       *uint32        `json:"ttl"`
 		Timestamp *uint32        `json:"timestamp"`
 		Topic     *TopicType     `json:"topic"`
-		Payload   hexutil.Bytes `json:"payload"`
+		Payload   *hexutil.Bytes `json:"payload"`
-		Padding   hexutil.Bytes `json:"padding"`
+		Padding   *hexutil.Bytes `json:"padding"`
 		PoW       *float64       `json:"pow"`
-		Hash      hexutil.Bytes `json:"hash"`
+		Hash      *hexutil.Bytes `json:"hash"`
-		Dst       hexutil.Bytes `json:"recipientPublicKey,omitempty"`
+		Dst       *hexutil.Bytes `json:"recipientPublicKey,omitempty"`
 	}
 	var dec Message
 	if err := json.Unmarshal(input, &dec); err != nil {
 		return err
 	}
 	if dec.Sig != nil {
-		m.Sig = dec.Sig
+		m.Sig = *dec.Sig
 	}
 	if dec.TTL != nil {
 		m.TTL = *dec.TTL
@@ -64,19 +64,19 @@ func (m *Message) UnmarshalJSON(input []byte) error {
 		m.Topic = *dec.Topic
 	}
 	if dec.Payload != nil {
-		m.Payload = dec.Payload
+		m.Payload = *dec.Payload
 	}
 	if dec.Padding != nil {
-		m.Padding = dec.Padding
+		m.Padding = *dec.Padding
 	}
 	if dec.PoW != nil {
 		m.PoW = *dec.PoW
 	}
 	if dec.Hash != nil {
-		m.Hash = dec.Hash
+		m.Hash = *dec.Hash
 	}
 	if dec.Dst != nil {
-		m.Dst = dec.Dst
+		m.Dst = *dec.Dst
 	}
 	return nil
 }

whisper/whisperv6/gen_newmessage_json.go

@@ -40,12 +40,12 @@ func (n NewMessage) MarshalJSON() ([]byte, error) {
 func (n *NewMessage) UnmarshalJSON(input []byte) error {
 	type NewMessage struct {
 		SymKeyID   *string        `json:"symKeyID"`
-		PublicKey  hexutil.Bytes `json:"pubKey"`
+		PublicKey  *hexutil.Bytes `json:"pubKey"`
 		Sig        *string        `json:"sig"`
 		TTL        *uint32        `json:"ttl"`
 		Topic      *TopicType     `json:"topic"`
-		Payload    hexutil.Bytes `json:"payload"`
+		Payload    *hexutil.Bytes `json:"payload"`
-		Padding    hexutil.Bytes `json:"padding"`
+		Padding    *hexutil.Bytes `json:"padding"`
 		PowTime    *uint32        `json:"powTime"`
 		PowTarget  *float64       `json:"powTarget"`
 		TargetPeer *string        `json:"targetPeer"`
@@ -58,7 +58,7 @@ func (n *NewMessage) UnmarshalJSON(input []byte) error {
 		n.SymKeyID = *dec.SymKeyID
 	}
 	if dec.PublicKey != nil {
-		n.PublicKey = dec.PublicKey
+		n.PublicKey = *dec.PublicKey
 	}
 	if dec.Sig != nil {
 		n.Sig = *dec.Sig
@@ -70,10 +70,10 @@ func (n *NewMessage) UnmarshalJSON(input []byte) error {
 		n.Topic = *dec.Topic
 	}
 	if dec.Payload != nil {
-		n.Payload = dec.Payload
+		n.Payload = *dec.Payload
 	}
 	if dec.Padding != nil {
-		n.Padding = dec.Padding
+		n.Padding = *dec.Padding
 	}
 	if dec.PowTime != nil {
 		n.PowTime = *dec.PowTime

whisper/whisperv6/peer.go

@@ -36,6 +36,7 @@ type Peer struct {
 
 	trusted        bool
 	powRequirement float64
+	bloomFilter    []byte // may contain nil in case of full node
 
 	known *set.Set // Messages already known by the peer to avoid wasting bandwidth
 
@@ -74,8 +75,12 @@ func (p *Peer) handshake() error {
 	// Send the handshake status message asynchronously
 	errc := make(chan error, 1)
 	go func() {
-		errc <- p2p.Send(p.ws, statusCode, ProtocolVersion)
+		pow := p.host.MinPow()
+		powConverted := math.Float64bits(pow)
+		bloom := p.host.BloomFilter()
+		errc <- p2p.SendItems(p.ws, statusCode, ProtocolVersion, powConverted, bloom)
 	}()
+
 	// Fetch the remote status packet and verify protocol match
 	packet, err := p.ws.ReadMsg()
 	if err != nil {
@@ -85,14 +90,42 @@ func (p *Peer) handshake() error {
 		return fmt.Errorf("peer [%x] sent packet %x before status packet", p.ID(), packet.Code)
 	}
 	s := rlp.NewStream(packet.Payload, uint64(packet.Size))
-	peerVersion, err := s.Uint()
+	_, err = s.List()
 	if err != nil {
 		return fmt.Errorf("peer [%x] sent bad status message: %v", p.ID(), err)
 	}
+	peerVersion, err := s.Uint()
+	if err != nil {
+		return fmt.Errorf("peer [%x] sent bad status message (unable to decode version): %v", p.ID(), err)
+	}
 	if peerVersion != ProtocolVersion {
 		return fmt.Errorf("peer [%x]: protocol version mismatch %d != %d", p.ID(), peerVersion, ProtocolVersion)
 	}
-	// Wait until out own status is consumed too
+
+	// only version is mandatory, subsequent parameters are optional
+	powRaw, err := s.Uint()
+	if err == nil {
+		pow := math.Float64frombits(powRaw)
+		if math.IsInf(pow, 0) || math.IsNaN(pow) || pow < 0.0 {
+			return fmt.Errorf("peer [%x] sent bad status message: invalid pow", p.ID())
+		}
+		p.powRequirement = pow
+
+		var bloom []byte
+		err = s.Decode(&bloom)
+		if err == nil {
+			sz := len(bloom)
+			if sz != bloomFilterSize && sz != 0 {
+				return fmt.Errorf("peer [%x] sent bad status message: wrong bloom filter size %d", p.ID(), sz)
+			}
+			if isFullNode(bloom) {
+				p.bloomFilter = nil
+			} else {
+				p.bloomFilter = bloom
+			}
+		}
+	}
+
 	if err := <-errc; err != nil {
 		return fmt.Errorf("peer [%x] failed to send status packet: %v", p.ID(), err)
 	}
@@ -156,7 +189,7 @@ func (p *Peer) broadcast() error {
 	envelopes := p.host.Envelopes()
 	bundle := make([]*Envelope, 0, len(envelopes))
 	for _, envelope := range envelopes {
-		if !p.marked(envelope) && envelope.PoW() >= p.powRequirement {
+		if !p.marked(envelope) && envelope.PoW() >= p.powRequirement && p.bloomMatch(envelope) {
 			bundle = append(bundle, envelope)
 		}
 	}
@@ -186,3 +219,16 @@ func (p *Peer) notifyAboutPowRequirementChange(pow float64) error {
 	i := math.Float64bits(pow)
 	return p2p.Send(p.ws, powRequirementCode, i)
 }
+
+func (p *Peer) notifyAboutBloomFilterChange(bloom []byte) error {
+	return p2p.Send(p.ws, bloomFilterExCode, bloom)
+}
+
+func (p *Peer) bloomMatch(env *Envelope) bool {
+	if p.bloomFilter == nil {
+		// no filter - full node, accepts all envelops
+		return true
+	}
+
+	return bloomFilterMatch(p.bloomFilter, env.Bloom())
+}

whisper/whisperv6/peer_test.go

@@ -20,6 +20,7 @@ import (
 	"bytes"
 	"crypto/ecdsa"
 	"fmt"
+	mrand "math/rand"
 	"net"
 	"sync"
 	"testing"
@@ -87,6 +88,9 @@ var nodes [NumNodes]*TestNode
 var sharedKey []byte = []byte("some arbitrary data here")
 var sharedTopic TopicType = TopicType{0xF, 0x1, 0x2, 0}
 var expectedMessage []byte = []byte("per rectum ad astra")
+var masterBloomFilter []byte
+var masterPow = 0.00000001
+var round int = 1
 
 func TestSimulation(t *testing.T) {
 	// create a chain of whisper nodes,
@@ -104,8 +108,13 @@ func TestSimulation(t *testing.T) {
 	// check if each node have received and decrypted exactly one message
 	checkPropagation(t, true)
 
-	// send protocol-level messages (powRequirementCode) and check the new PoW requirement values
+	// check if Status message was correctly decoded
-	powReqExchange(t)
+	checkBloomFilterExchange(t)
+	checkPowExchange(t)
+
+	// send new pow and bloom exchange messages
+	resetParams(t)
+	round++
 
 	// node #1 sends one expected (decryptable) message
 	sendMsg(t, true, 1)
@@ -113,18 +122,65 @@ func TestSimulation(t *testing.T) {
 	// check if each node (except node #0) have received and decrypted exactly one message
 	checkPropagation(t, false)
 
+	for i := 1; i < NumNodes; i++ {
+		time.Sleep(20 * time.Millisecond)
+		sendMsg(t, true, i)
+	}
+
+	// check if corresponding protocol-level messages were correctly decoded
+	checkPowExchangeForNodeZero(t)
+	checkBloomFilterExchange(t)
+
 	stopServers()
 }
 
+func resetParams(t *testing.T) {
+	// change pow only for node zero
+	masterPow = 7777777.0
+	nodes[0].shh.SetMinimumPoW(masterPow)
+
+	// change bloom for all nodes
+	masterBloomFilter = TopicToBloom(sharedTopic)
+	for i := 0; i < NumNodes; i++ {
+		nodes[i].shh.SetBloomFilter(masterBloomFilter)
+	}
+}
+
+func initBloom(t *testing.T) {
+	masterBloomFilter = make([]byte, bloomFilterSize)
+	_, err := mrand.Read(masterBloomFilter)
+	if err != nil {
+		t.Fatalf("rand failed: %s.", err)
+	}
+
+	msgBloom := TopicToBloom(sharedTopic)
+	masterBloomFilter = addBloom(masterBloomFilter, msgBloom)
+	for i := 0; i < 32; i++ {
+		masterBloomFilter[i] = 0xFF
+	}
+
+	if !bloomFilterMatch(masterBloomFilter, msgBloom) {
+		t.Fatalf("bloom mismatch on initBloom.")
+	}
+}
+
 func initialize(t *testing.T) {
+	initBloom(t)
+
 	var err error
 	ip := net.IPv4(127, 0, 0, 1)
 	port0 := 30303
 
 	for i := 0; i < NumNodes; i++ {
 		var node TestNode
+		b := make([]byte, bloomFilterSize)
+		copy(b, masterBloomFilter)
 		node.shh = New(&DefaultConfig)
-		node.shh.SetMinimumPowTest(0.00000001)
+		node.shh.SetMinimumPoW(masterPow)
+		node.shh.SetBloomFilter(b)
+		if !bytes.Equal(node.shh.BloomFilter(), masterBloomFilter) {
+			t.Fatalf("bloom mismatch on init.")
+		}
 		node.shh.Start(nil)
 		topics := make([]TopicType, 0)
 		topics = append(topics, sharedTopic)
@@ -206,7 +262,7 @@ func checkPropagation(t *testing.T, includingNodeZero bool) {
 		for i := first; i < NumNodes; i++ {
 			f := nodes[i].shh.GetFilter(nodes[i].filerId)
 			if f == nil {
-				t.Fatalf("failed to get filterId %s from node %d.", nodes[i].filerId, i)
+				t.Fatalf("failed to get filterId %s from node %d, round %d.", nodes[i].filerId, i, round)
 			}
 
 			mail := f.Retrieve()
@@ -332,34 +388,43 @@ func TestPeerBasic(t *testing.T) {
 	}
 }
 
-func powReqExchange(t *testing.T) {
+func checkPowExchangeForNodeZero(t *testing.T) {
-	for i, node := range nodes {
-		for peer := range node.shh.peers {
-			if peer.powRequirement > 1000.0 {
-				t.Fatalf("node %d: one of the peers' pow requirement is too big (%f).", i, peer.powRequirement)
-			}
-		}
-	}
-
-	const pow float64 = 7777777.0
-	nodes[0].shh.SetMinimumPoW(pow)
-
-	// wait until all the messages are delivered
-	time.Sleep(64 * time.Millisecond)
-
 	cnt := 0
 	for i, node := range nodes {
 		for peer := range node.shh.peers {
 			if peer.peer.ID() == discover.PubkeyID(&nodes[0].id.PublicKey) {
 				cnt++
-				if peer.powRequirement != pow {
+				if peer.powRequirement != masterPow {
 					t.Fatalf("node %d: failed to set the new pow requirement.", i)
 				}
 			}
 		}
 	}
-
 	if cnt == 0 {
 		t.Fatalf("no matching peers found.")
 	}
 }
+
+func checkPowExchange(t *testing.T) {
+	for i, node := range nodes {
+		for peer := range node.shh.peers {
+			if peer.peer.ID() != discover.PubkeyID(&nodes[0].id.PublicKey) {
+				if peer.powRequirement != masterPow {
+					t.Fatalf("node %d: failed to exchange pow requirement in round %d; expected %f, got %f",
+						i, round, masterPow, peer.powRequirement)
+				}
+			}
+		}
+	}
+}
+
+func checkBloomFilterExchange(t *testing.T) {
+	for i, node := range nodes {
+		for peer := range node.shh.peers {
+			if !bytes.Equal(peer.bloomFilter, masterBloomFilter) {
+				t.Fatalf("node %d: failed to exchange bloom filter requirement in round %d. \n%x expected \n%x got",
+					i, round, masterBloomFilter, peer.bloomFilter)
+			}
+		}
+	}
+}

whisper/whisperv6/whisper.go

@@ -48,9 +48,12 @@ type Statistics struct {
 }
 
 const (
-	minPowIdx     = iota // Minimal PoW required by the whisper node
 	maxMsgSizeIdx           = iota // Maximal message length allowed by the whisper node
-	overflowIdx   = iota // Indicator of message queue overflow
+	overflowIdx                    // Indicator of message queue overflow
+	minPowIdx                      // Minimal PoW required by the whisper node
+	minPowToleranceIdx             // Minimal PoW tolerated by the whisper node for a limited time
+	bloomFilterIdx                 // Bloom filter for topics of interest for this node
+	bloomFilterToleranceIdx        // Bloom filter tolerated by the whisper node for a limited time
 )
 
 // Whisper represents a dark communication interface through the Ethereum
@@ -76,7 +79,7 @@ type Whisper struct {
 
 	settings syncmap.Map // holds configuration settings that can be dynamically changed
 
-	reactionAllowance int // maximum time in seconds allowed to process the whisper-related messages
+	syncAllowance int // maximum time in seconds allowed to process the whisper-related messages
 
 	statsMu sync.Mutex // guard stats
 	stats   Statistics // Statistics of whisper node
@@ -99,7 +102,7 @@ func New(cfg *Config) *Whisper {
 		messageQueue:  make(chan *Envelope, messageQueueLimit),
 		p2pMsgQueue:   make(chan *Envelope, messageQueueLimit),
 		quit:          make(chan struct{}),
-		reactionAllowance: SynchAllowance,
+		syncAllowance: DefaultSyncAllowance,
 	}
 
 	whisper.filters = NewFilters(whisper)
@@ -126,11 +129,55 @@ func New(cfg *Config) *Whisper {
 	return whisper
 }
 
+// MinPow returns the PoW value required by this node.
 func (w *Whisper) MinPow() float64 {
-	val, _ := w.settings.Load(minPowIdx)
+	val, exist := w.settings.Load(minPowIdx)
+	if !exist || val == nil {
+		return DefaultMinimumPoW
+	}
+	v, ok := val.(float64)
+	if !ok {
+		log.Error("Error loading minPowIdx, using default")
+		return DefaultMinimumPoW
+	}
+	return v
+}
+
+// MinPowTolerance returns the value of minimum PoW which is tolerated for a limited
+// time after PoW was changed. If sufficient time have elapsed or no change of PoW
+// have ever occurred, the return value will be the same as return value of MinPow().
+func (w *Whisper) MinPowTolerance() float64 {
+	val, exist := w.settings.Load(minPowToleranceIdx)
+	if !exist || val == nil {
+		return DefaultMinimumPoW
+	}
 	return val.(float64)
 }
 
+// BloomFilter returns the aggregated bloom filter for all the topics of interest.
+// The nodes are required to send only messages that match the advertised bloom filter.
+// If a message does not match the bloom, it will tantamount to spam, and the peer will
+// be disconnected.
+func (w *Whisper) BloomFilter() []byte {
+	val, exist := w.settings.Load(bloomFilterIdx)
+	if !exist || val == nil {
+		return nil
+	}
+	return val.([]byte)
+}
+
+// BloomFilterTolerance returns the bloom filter which is tolerated for a limited
+// time after new bloom was advertised to the peers. If sufficient time have elapsed
+// or no change of bloom filter have ever occurred, the return value will be the same
+// as return value of BloomFilter().
+func (w *Whisper) BloomFilterTolerance() []byte {
+	val, exist := w.settings.Load(bloomFilterToleranceIdx)
+	if !exist || val == nil {
+		return nil
+	}
+	return val.([]byte)
+}
+
 // MaxMessageSize returns the maximum accepted message size.
 func (w *Whisper) MaxMessageSize() uint32 {
 	val, _ := w.settings.Load(maxMsgSizeIdx)
@@ -180,18 +227,40 @@ func (w *Whisper) SetMaxMessageSize(size uint32) error {
 	return nil
 }
 
+// SetBloomFilter sets the new bloom filter
+func (w *Whisper) SetBloomFilter(bloom []byte) error {
+	if len(bloom) != bloomFilterSize {
+		return fmt.Errorf("invalid bloom filter size: %d", len(bloom))
+	}
+
+	b := make([]byte, bloomFilterSize)
+	copy(b, bloom)
+
+	w.settings.Store(bloomFilterIdx, b)
+	w.notifyPeersAboutBloomFilterChange(b)
+
+	go func() {
+		// allow some time before all the peers have processed the notification
+		time.Sleep(time.Duration(w.syncAllowance) * time.Second)
+		w.settings.Store(bloomFilterToleranceIdx, b)
+	}()
+
+	return nil
+}
+
 // SetMinimumPoW sets the minimal PoW required by this node
 func (w *Whisper) SetMinimumPoW(val float64) error {
 	if val < 0.0 {
 		return fmt.Errorf("invalid PoW: %f", val)
 	}
 
+	w.settings.Store(minPowIdx, val)
 	w.notifyPeersAboutPowRequirementChange(val)
 
 	go func() {
 		// allow some time before all the peers have processed the notification
-		time.Sleep(time.Duration(w.reactionAllowance) * time.Second)
+		time.Sleep(time.Duration(w.syncAllowance) * time.Second)
-		w.settings.Store(minPowIdx, val)
+		w.settings.Store(minPowToleranceIdx, val)
 	}()
 
 	return nil
@@ -199,21 +268,13 @@ func (w *Whisper) SetMinimumPoW(val float64) error {
 
 // SetMinimumPoW sets the minimal PoW in test environment
 func (w *Whisper) SetMinimumPowTest(val float64) {
-	w.notifyPeersAboutPowRequirementChange(val)
 	w.settings.Store(minPowIdx, val)
+	w.notifyPeersAboutPowRequirementChange(val)
+	w.settings.Store(minPowToleranceIdx, val)
 }
 
 func (w *Whisper) notifyPeersAboutPowRequirementChange(pow float64) {
-	arr := make([]*Peer, len(w.peers))
+	arr := w.getPeers()
-	i := 0
-
-	w.peerMu.Lock()
-	for p := range w.peers {
-		arr[i] = p
-		i++
-	}
-	w.peerMu.Unlock()
-
 	for _, p := range arr {
 		err := p.notifyAboutPowRequirementChange(pow)
 		if err != nil {
@@ -221,11 +282,37 @@ func (w *Whisper) notifyPeersAboutPowRequirementChange(pow float64) {
 			err = p.notifyAboutPowRequirementChange(pow)
 		}
 		if err != nil {
-			log.Warn("oversized message received", "peer", p.ID(), "error", err)
+			log.Warn("failed to notify peer about new pow requirement", "peer", p.ID(), "error", err)
 		}
 	}
 }
 
+func (w *Whisper) notifyPeersAboutBloomFilterChange(bloom []byte) {
+	arr := w.getPeers()
+	for _, p := range arr {
+		err := p.notifyAboutBloomFilterChange(bloom)
+		if err != nil {
+			// allow one retry
+			err = p.notifyAboutBloomFilterChange(bloom)
+		}
+		if err != nil {
+			log.Warn("failed to notify peer about new bloom filter", "peer", p.ID(), "error", err)
+		}
+	}
+}
+
+func (w *Whisper) getPeers() []*Peer {
+	arr := make([]*Peer, len(w.peers))
+	i := 0
+	w.peerMu.Lock()
+	for p := range w.peers {
+		arr[i] = p
+		i++
+	}
+	w.peerMu.Unlock()
+	return arr
+}
+
 // getPeer retrieves peer by ID
 func (w *Whisper) getPeer(peerID []byte) (*Peer, error) {
 	w.peerMu.Lock()
@@ -459,7 +546,28 @@ func (w *Whisper) GetSymKey(id string) ([]byte, error) {
 // Subscribe installs a new message handler used for filtering, decrypting
 // and subsequent storing of incoming messages.
 func (w *Whisper) Subscribe(f *Filter) (string, error) {
-	return w.filters.Install(f)
+	s, err := w.filters.Install(f)
+	if err == nil {
+		w.updateBloomFilter(f)
+	}
+	return s, err
+}
+
+// updateBloomFilter recalculates the new value of bloom filter,
+// and informs the peers if necessary.
+func (w *Whisper) updateBloomFilter(f *Filter) {
+	aggregate := make([]byte, bloomFilterSize)
+	for _, t := range f.Topics {
+		top := BytesToTopic(t)
+		b := TopicToBloom(top)
+		aggregate = addBloom(aggregate, b)
+	}
+
+	if !bloomFilterMatch(w.BloomFilter(), aggregate) {
+		// existing bloom filter must be updated
+		aggregate = addBloom(w.BloomFilter(), aggregate)
+		w.SetBloomFilter(aggregate)
+	}
 }
 
 // GetFilter returns the filter by id.
@@ -592,7 +700,21 @@ func (wh *Whisper) runMessageLoop(p *Peer, rw p2p.MsgReadWriter) error {
 			}
 			p.powRequirement = f
 		case bloomFilterExCode:
-			// to be implemented
+			var bloom []byte
+			err := packet.Decode(&bloom)
+			if err == nil && len(bloom) != bloomFilterSize {
+				err = fmt.Errorf("wrong bloom filter size %d", len(bloom))
+			}
+
+			if err != nil {
+				log.Warn("failed to decode bloom filter exchange message, peer will be disconnected", "peer", p.peer.ID(), "err", err)
+				return errors.New("invalid bloom filter exchange message")
+			}
+			if isFullNode(bloom) {
+				p.bloomFilter = nil
+			} else {
+				p.bloomFilter = bloom
+			}
 		case p2pMessageCode:
 			// peer-to-peer message, sent directly to peer bypassing PoW checks, etc.
 			// this message is not supposed to be forwarded to other peers, and
@@ -633,7 +755,7 @@ func (wh *Whisper) add(envelope *Envelope) (bool, error) {
 	sent := envelope.Expiry - envelope.TTL
 
 	if sent > now {
-		if sent-SynchAllowance > now {
+		if sent-DefaultSyncAllowance > now {
 			return false, fmt.Errorf("envelope created in the future [%x]", envelope.Hash())
 		} else {
 			// recalculate PoW, adjusted for the time difference, plus one second for latency
@@ -642,7 +764,7 @@ func (wh *Whisper) add(envelope *Envelope) (bool, error) {
 	}
 
 	if envelope.Expiry < now {
-		if envelope.Expiry+SynchAllowance*2 < now {
+		if envelope.Expiry+DefaultSyncAllowance*2 < now {
 			return false, fmt.Errorf("very old message")
 		} else {
 			log.Debug("expired envelope dropped", "hash", envelope.Hash().Hex())
@@ -655,11 +777,22 @@ func (wh *Whisper) add(envelope *Envelope) (bool, error) {
 	}
 
 	if envelope.PoW() < wh.MinPow() {
-		log.Debug("envelope with low PoW dropped", "PoW", envelope.PoW(), "hash", envelope.Hash().Hex())
+		// maybe the value was recently changed, and the peers did not adjust yet.
-		return false, nil // drop envelope without error for now
+		// in this case the previous value is retrieved by MinPowTolerance()
+		// for a short period of peer synchronization.
+		if envelope.PoW() < wh.MinPowTolerance() {
+			return false, fmt.Errorf("envelope with low PoW received: PoW=%f, hash=[%v]", envelope.PoW(), envelope.Hash().Hex())
+		}
+	}
 
-		// once the status message includes the PoW requirement, an error should be returned here:
+	if !bloomFilterMatch(wh.BloomFilter(), envelope.Bloom()) {
-		//return false, fmt.Errorf("envelope with low PoW dropped: PoW=%f, hash=[%v]", envelope.PoW(), envelope.Hash().Hex())
+		// maybe the value was recently changed, and the peers did not adjust yet.
+		// in this case the previous value is retrieved by BloomFilterTolerance()
+		// for a short period of peer synchronization.
+		if !bloomFilterMatch(wh.BloomFilterTolerance(), envelope.Bloom()) {
+			return false, fmt.Errorf("envelope does not match bloom filter, hash=[%v], bloom: \n%x \n%x \n%x",
+				envelope.Hash().Hex(), wh.BloomFilter(), envelope.Bloom(), envelope.Topic)
+		}
 	}
 
 	hash := envelope.Hash()
@@ -897,3 +1030,40 @@ func GenerateRandomID() (id string, err error) {
 	id = common.Bytes2Hex(buf)
 	return id, err
 }
+
+func isFullNode(bloom []byte) bool {
+	if bloom == nil {
+		return true
+	}
+	for _, b := range bloom {
+		if b != 255 {
+			return false
+		}
+	}
+	return true
+}
+
+func bloomFilterMatch(filter, sample []byte) bool {
+	if filter == nil {
+		// full node, accepts all messages
+		return true
+	}
+
+	for i := 0; i < bloomFilterSize; i++ {
+		f := filter[i]
+		s := sample[i]
+		if (f | s) != f {
+			return false
+		}
+	}
+
+	return true
+}
+
+func addBloom(a, b []byte) []byte {
+	c := make([]byte, bloomFilterSize)
+	for i := 0; i < bloomFilterSize; i++ {
+		c[i] = a[i] | b[i]
+	}
+	return c
+}

whisper/whisperv6/whisper_test.go

@@ -843,3 +843,64 @@ func TestSymmetricSendKeyMismatch(t *testing.T) {
 		t.Fatalf("received a message when keys weren't matching")
 	}
 }
+
+func TestBloom(t *testing.T) {
+	topic := TopicType{0, 0, 255, 6}
+	b := TopicToBloom(topic)
+	x := make([]byte, bloomFilterSize)
+	x[0] = byte(1)
+	x[32] = byte(1)
+	x[bloomFilterSize-1] = byte(128)
+	if !bloomFilterMatch(x, b) || !bloomFilterMatch(b, x) {
+		t.Fatalf("bloom filter does not match the mask")
+	}
+
+	_, err := mrand.Read(b)
+	if err != nil {
+		t.Fatalf("math rand error")
+	}
+	_, err = mrand.Read(x)
+	if err != nil {
+		t.Fatalf("math rand error")
+	}
+	if !bloomFilterMatch(b, b) {
+		t.Fatalf("bloom filter does not match self")
+	}
+	x = addBloom(x, b)
+	if !bloomFilterMatch(x, b) {
+		t.Fatalf("bloom filter does not match combined bloom")
+	}
+	if !isFullNode(nil) {
+		t.Fatalf("isFullNode did not recognize nil as full node")
+	}
+	x[17] = 254
+	if isFullNode(x) {
+		t.Fatalf("isFullNode false positive")
+	}
+	for i := 0; i < bloomFilterSize; i++ {
+		b[i] = byte(255)
+	}
+	if !isFullNode(b) {
+		t.Fatalf("isFullNode false negative")
+	}
+	if bloomFilterMatch(x, b) {
+		t.Fatalf("bloomFilterMatch false positive")
+	}
+	if !bloomFilterMatch(b, x) {
+		t.Fatalf("bloomFilterMatch false negative")
+	}
+
+	w := New(&DefaultConfig)
+	f := w.BloomFilter()
+	if f != nil {
+		t.Fatalf("wrong bloom on creation")
+	}
+	err = w.SetBloomFilter(x)
+	if err != nil {
+		t.Fatalf("failed to set bloom filter: %s", err)
+	}
+	f = w.BloomFilter()
+	if !bloomFilterMatch(f, x) || !bloomFilterMatch(x, f) {
+		t.Fatalf("retireved wrong bloom filter")
+	}
+}