update go-ethereum to 1.8.17

Gopkg.lock

@@ -26,11 +26,12 @@
   version = "v1.7.1"
 
 [[projects]]
-  digest = "1:1dc638d013f2a6f6ae13568584e8fee7e172cbf295e82064ded18bcf6d63c04c"
+  digest = "1:7957b1d07e06b705902c0187bb2b20eaf04cae8e00d170f2b15e0a525bc2b52b"
   name = "github.com/ethereum/go-ethereum"
   packages = [
     ".",
     "common",
+    "common/bitutil",
     "common/hexutil",
     "common/math",
     "common/mclock",
@@ -47,18 +48,19 @@
     "p2p",
     "p2p/discover",
     "p2p/discv5",
+    "p2p/enode",
+    "p2p/enr",
     "p2p/nat",
     "p2p/netutil",
     "params",
     "rlp",
     "rpc",
     "trie",
-    "whisper/whisperv6",
   ]
   pruneopts = "T"
-  revision = "31f0afca344c53678e98032d6306e0e4ff7b9be1"
+  revision = "b193c5ce7a45b2d1423e722cd3cf6c4409cb4f03"
   source = "github.com/status-im/go-ethereum"
-  version = "v1.8.16"
+  version = "v1.8.17"
 
 [[projects]]
   digest = "1:586ea76dbd0374d6fb649a91d70d652b7fe0ccffb8910a77468e7702e7901f3d"
@@ -208,10 +210,10 @@
     "github.com/ethereum/go-ethereum/metrics",
     "github.com/ethereum/go-ethereum/p2p",
     "github.com/ethereum/go-ethereum/p2p/discover",
+    "github.com/ethereum/go-ethereum/p2p/enode",
     "github.com/ethereum/go-ethereum/p2p/nat",
     "github.com/ethereum/go-ethereum/rlp",
     "github.com/ethereum/go-ethereum/rpc",
-    "github.com/ethereum/go-ethereum/whisper/whisperv6",
     "github.com/syndtr/goleveldb/leveldb/errors",
     "golang.org/x/crypto/pbkdf2",
     "golang.org/x/sync/syncmap",

Gopkg.toml

@@ -30,7 +30,7 @@
 
 [[constraint]]
   name = "github.com/ethereum/go-ethereum"
-  version = "=v1.8.16"
+  version = ">v1.8.16"
   source = "github.com/status-im/go-ethereum"
 
 [[constraint]]

vendor/github.com/ethereum/go-ethereum/.github/CODEOWNERS

@@ -27,6 +27,6 @@ swarm/services                  @zelig
 swarm/state                     @justelad
 swarm/storage/encryption        @gbalint @zelig @nagydani
 swarm/storage/mock              @janos
-swarm/storage/mru               @nolash
+swarm/storage/feed              @nolash @jpeletier
 swarm/testutil                  @lmars
 whisper/                        @gballet @gluk256

vendor/github.com/ethereum/go-ethereum/.github/CONTRIBUTING.md

@@ -1,16 +1,40 @@
+# Contributing
+
+Thank you for considering to help out with the source code! We welcome 
+contributions from anyone on the internet, and are grateful for even the 
+smallest of fixes!
+
+If you'd like to contribute to go-ethereum, please fork, fix, commit and send a 
+pull request for the maintainers to review and merge into the main code base. If
+you wish to submit more complex changes though, please check up with the core 
+devs first on [our gitter channel](https://gitter.im/ethereum/go-ethereum) to 
+ensure those changes are in line with the general philosophy of the project 
+and/or get some early feedback which can make both your efforts much lighter as
+well as our review and merge procedures quick and simple.
+
+## Coding guidelines
+
+Please make sure your contributions adhere to our coding guidelines:
+
+ * Code must adhere to the official Go 
+[formatting](https://golang.org/doc/effective_go.html#formatting) guidelines 
+(i.e. uses [gofmt](https://golang.org/cmd/gofmt/)).
+ * Code must be documented adhering to the official Go 
+[commentary](https://golang.org/doc/effective_go.html#commentary) guidelines.
+ * Pull requests need to be based on and opened against the `master` branch.
+ * Commit messages should be prefixed with the package(s) they modify.
+   * E.g. "eth, rpc: make trace configs optional"
+
 ## Can I have feature X
 
-Before you do a feature request please check and make sure that it isn't possible
+Before you submit a feature request, please check and make sure that it isn't 
-through some other means. The JavaScript enabled console is a powerful feature
+possible through some other means. The JavaScript-enabled console is a powerful 
-in the right hands. Please check our [Wiki page](https://github.com/ethereum/go-ethereum/wiki) for more info
+feature in the right hands. Please check our 
+[Wiki page](https://github.com/ethereum/go-ethereum/wiki) for more info
 and help.
 
-## Contributing
+## Configuration, dependencies, and tests
 
-If you'd like to contribute to go-ethereum please fork, fix, commit and
+Please see the [Developers' Guide](https://github.com/ethereum/go-ethereum/wiki/Developers'-Guide)
-send a pull request. Commits which do not comply with the coding standards
+for more details on configuring your environment, managing project dependencies
-are ignored (use gofmt!).
+and testing procedures.
-
-See [Developers' Guide](https://github.com/ethereum/go-ethereum/wiki/Developers'-Guide)
-for more details on configuring your environment, testing, and
-dependency management.

vendor/github.com/ethereum/go-ethereum/.travis.yml

@@ -3,17 +3,6 @@ go_import_path: github.com/ethereum/go-ethereum
 sudo: false
 matrix:
   include:
-    - os: linux
-      dist: trusty
-      sudo: required
-      go: 1.9.x
-      script:
-        - sudo modprobe fuse
-        - sudo chmod 666 /dev/fuse
-        - sudo chown root:$USER /etc/fuse.conf
-        - go run build/ci.go install
-        - go run build/ci.go test -coverage $TEST_PACKAGES
-
     - os: linux
       dist: trusty
       sudo: required
@@ -56,7 +45,8 @@ matrix:
         - go run build/ci.go lint
 
     # This builder does the Ubuntu PPA upload
-    - os: linux
+    - if: type = push
+      os: linux
       dist: trusty
       go: 1.11.x
       env:
@@ -74,7 +64,8 @@ matrix:
         - go run build/ci.go debsrc -signer "Go Ethereum Linux Builder <geth-ci@ethereum.org>" -upload ppa:ethereum/ethereum
 
     # This builder does the Linux Azure uploads
-    - os: linux
+    - if: type = push
+      os: linux
       dist: trusty
       sudo: required
       go: 1.11.x
@@ -107,7 +98,8 @@ matrix:
         - go run build/ci.go archive -arch arm64 -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds
 
     # This builder does the Linux Azure MIPS xgo uploads
-    - os: linux
+    - if: type = push
+      os: linux
       dist: trusty
       services:
         - docker
@@ -134,7 +126,8 @@ matrix:
         - go run build/ci.go archive -arch mips64le -type tar -signer LINUX_SIGNING_KEY -upload gethstore/builds
 
     # This builder does the Android Maven and Azure uploads
-    - os: linux
+    - if: type = push
+      os: linux
       dist: trusty
       addons:
         apt:
@@ -155,7 +148,7 @@ matrix:
       git:
         submodules: false # avoid cloning ethereum/tests
       before_install:
-        - curl https://storage.googleapis.com/golang/go1.11.linux-amd64.tar.gz | tar -xz
+        - curl https://storage.googleapis.com/golang/go1.11.1.linux-amd64.tar.gz | tar -xz
         - export PATH=`pwd`/go/bin:$PATH
         - export GOROOT=`pwd`/go
         - export GOPATH=$HOME/go
@@ -171,7 +164,8 @@ matrix:
         - go run build/ci.go aar -signer ANDROID_SIGNING_KEY -deploy https://oss.sonatype.org -upload gethstore/builds
 
     # This builder does the OSX Azure, iOS CocoaPods and iOS Azure uploads
-    - os: osx
+    - if: type = push
+      os: osx
       go: 1.11.x
       env:
         - azure-osx
@@ -199,7 +193,8 @@ matrix:
         - go run build/ci.go xcode -signer IOS_SIGNING_KEY -deploy trunk -upload gethstore/builds
 
     # This builder does the Azure archive purges to avoid accumulating junk
-    - os: linux
+    - if: type = cron
+      os: linux
       dist: trusty
       go: 1.11.x
       env:
@@ -208,10 +203,3 @@ matrix:
         submodules: false # avoid cloning ethereum/tests
       script:
         - go run build/ci.go purge -store gethstore/builds -days 14
-
-notifications:
-  webhooks:
-    urls:
-      - https://webhooks.gitter.im/e/e09ccdce1048c5e03445
-    on_success: change
-    on_failure: always

vendor/github.com/ethereum/go-ethereum/Makefile

@@ -57,6 +57,9 @@ devtools:
 	@type "solc" 2> /dev/null || echo 'Please install solc'
 	@type "protoc" 2> /dev/null || echo 'Please install protoc'
 
+swarm-devtools:
+	env GOBIN= go install ./cmd/swarm/mimegen
+
 # Cross Compilation Targets (xgo)
 
 geth-cross: geth-linux geth-darwin geth-windows geth-android geth-ios

vendor/github.com/ethereum/go-ethereum/_assets/patches/0028-p2p-watchdog.patch

@@ -1,8 +1,8 @@
-diff --git c/p2p/peer.go w/p2p/peer.go
+diff --git a/p2p/peer.go b/p2p/peer.go
-index 73e33418e..322268b28 100644
+index af019d0..cfd63af 100644
---- c/p2p/peer.go
+--- a/p2p/peer.go
-+++ w/p2p/peer.go
++++ b/p2p/peer.go
-@@ -22,6 +22,7 @@ import (
+@@ -23,6 +23,7 @@ import (
  	"net"
  	"sort"
  	"sync"
@@ -10,7 +10,7 @@ index 73e33418e..322268b28 100644
  	"time"
  
  	"github.com/ethereum/go-ethereum/common/mclock"
-@@ -38,7 +39,10 @@ const (
+@@ -44,7 +45,10 @@ const (
  
  	snappyProtocolVersion = 5
  
@@ -22,7 +22,7 @@ index 73e33418e..322268b28 100644
  )
  
  const (
-@@ -100,6 +104,7 @@ type Peer struct {
+@@ -106,6 +110,7 @@ type Peer struct {
  	log     log.Logger
  	created mclock.AbsTime
  
@@ -30,7 +30,7 @@ index 73e33418e..322268b28 100644
  	wg       sync.WaitGroup
  	protoErr chan error
  	closed   chan struct{}
-@@ -118,6 +123,11 @@ func NewPeer(id discover.NodeID, name string, caps []Cap) *Peer {
+@@ -125,6 +130,11 @@ func NewPeer(id enode.ID, name string, caps []Cap) *Peer {
  	return peer
  }
  
@@ -40,9 +40,9 @@ index 73e33418e..322268b28 100644
 +}
 +
  // ID returns the node's public key.
- func (p *Peer) ID() discover.NodeID {
+ func (p *Peer) ID() enode.ID {
- 	return p.rw.id
+ 	return p.rw.node.ID()
-@@ -188,8 +198,10 @@ func (p *Peer) run() (remoteRequested bool, err error) {
+@@ -201,8 +211,10 @@ func (p *Peer) run() (remoteRequested bool, err error) {
  		readErr    = make(chan error, 1)
  		reason     DiscReason // sent to the peer
  	)
@@ -55,7 +55,7 @@ index 73e33418e..322268b28 100644
  	go p.pingLoop()
  
  	// Start all protocol handlers.
-@@ -248,7 +260,24 @@ func (p *Peer) pingLoop() {
+@@ -262,7 +274,24 @@ func (p *Peer) pingLoop() {
  	}
  }
  
@@ -81,7 +81,7 @@ index 73e33418e..322268b28 100644
  	defer p.wg.Done()
  	for {
  		msg, err := p.rw.ReadMsg()
-@@ -261,6 +290,7 @@ func (p *Peer) readLoop(errc chan<- error) {
+@@ -275,6 +304,7 @@ func (p *Peer) readLoop(errc chan<- error) {
  			errc <- err
  			return
  		}
@@ -89,11 +89,11 @@ index 73e33418e..322268b28 100644
  	}
  }
  
-diff --git c/p2p/server.go w/p2p/server.go
+diff --git a/p2p/server.go b/p2p/server.go
-index c41d1dc15..04c6f7147 100644
+index 40db758..8546b02 100644
---- c/p2p/server.go
+--- a/p2p/server.go
-+++ w/p2p/server.go
++++ b/p2p/server.go
-@@ -45,7 +45,7 @@ const (
+@@ -49,7 +49,7 @@ const (
  
  	// Maximum time allowed for reading a complete message.
  	// This is effectively the amount of time a connection can be idle.
@@ -102,11 +102,11 @@ index c41d1dc15..04c6f7147 100644
  
  	// Maximum amount of time allowed for writing a complete message.
  	frameWriteTimeout = 20 * time.Second
-diff --git c/whisper/whisperv6/peer.go w/whisper/whisperv6/peer.go
+diff --git a/whisper/whisperv6/peer.go b/whisper/whisperv6/peer.go
-index 427127290..c30e92d1c 100644
+index eb17d2d..2b7687e 100644
---- c/whisper/whisperv6/peer.go
+--- a/whisper/whisperv6/peer.go
-+++ w/whisper/whisperv6/peer.go
++++ b/whisper/whisperv6/peer.go
-@@ -187,6 +187,10 @@ func (peer *Peer) expire() {
+@@ -195,6 +195,10 @@ func (peer *Peer) expire() {
  // broadcast iterates over the collection of envelopes and transmits yet unknown
  // ones over the network.
  func (peer *Peer) broadcast() error {

vendor/github.com/ethereum/go-ethereum/_assets/patches/0032-send-mailserver-request-completed-code.patch

@@ -35,7 +35,7 @@ index e03ec9d..1665539 100644
 -       "github.com/ethereum/go-ethereum/common"
 -       "github.com/ethereum/go-ethereum/p2p/discover"
 +	"github.com/ethereum/go-ethereum/common"
-+	"github.com/ethereum/go-ethereum/p2p/discover"
++	"github.com/ethereum/go-ethereum/p2p/enode"
  )
  
  // EventType used to define known envelope events.
@@ -63,7 +63,7 @@ index e03ec9d..1665539 100644
 -       Peer  discover.NodeID
 +	Event EventType
 +	Hash  common.Hash
-+	Peer  discover.NodeID
++	Peer  enode.ID
  }
 diff --git a/whisper/whisperv6/whisper.go b/whisper/whisperv6/whisper.go
 index 697f0ec..4a7b006 100644

vendor/github.com/ethereum/go-ethereum/_assets/patches/0033-mailserver-response-contains-cursor.patch

@@ -20,7 +20,7 @@ index 1665539d6..fe7570ed5 100644
 @@ -24,4 +28,5 @@ type EnvelopeEvent struct {
  	Event EventType
  	Hash  common.Hash
- 	Peer  discover.NodeID
+ 	Peer  enode.ID
 +	Data  interface{}
  }
 diff --git a/whisper/whisperv6/whisper.go b/whisper/whisperv6/whisper.go

vendor/github.com/ethereum/go-ethereum/accounts/abi/abi.go

@@ -137,6 +137,9 @@ func (abi *ABI) UnmarshalJSON(data []byte) error {
 // MethodById looks up a method by the 4-byte id
 // returns nil if none found
 func (abi *ABI) MethodById(sigdata []byte) (*Method, error) {
+	if len(sigdata) < 4 {
+		return nil, fmt.Errorf("data too short (% bytes) for abi method lookup", len(sigdata))
+	}
 	for _, method := range abi.Methods {
 		if bytes.Equal(method.Id(), sigdata[:4]) {
 			return &method, nil

vendor/github.com/ethereum/go-ethereum/accounts/abi/bind/backends/simulated.go

@@ -208,7 +208,7 @@ func (b *SimulatedBackend) PendingNonceAt(ctx context.Context, account common.Ad
 }
 
 // SuggestGasPrice implements ContractTransactor.SuggestGasPrice. Since the simulated
-// chain doens't have miners, we just return a gas price of 1 for any call.
+// chain doesn't have miners, we just return a gas price of 1 for any call.
 func (b *SimulatedBackend) SuggestGasPrice(ctx context.Context) (*big.Int, error) {
 	return big.NewInt(1), nil
 }

vendor/github.com/ethereum/go-ethereum/accounts/abi/bind/bind.go

@@ -23,13 +23,13 @@ package bind
 import (
 	"bytes"
 	"fmt"
+	"go/format"
 	"regexp"
 	"strings"
 	"text/template"
 	"unicode"
 
 	"github.com/ethereum/go-ethereum/accounts/abi"
-	"golang.org/x/tools/imports"
 )
 
 // Lang is a target programming language selector to generate bindings for.
@@ -145,9 +145,9 @@ func Bind(types []string, abis []string, bytecodes []string, pkg string, lang La
 	if err := tmpl.Execute(buffer, data); err != nil {
 		return "", err
 	}
-	// For Go bindings pass the code through goimports to clean it up and double check
+	// For Go bindings pass the code through gofmt to clean it up
 	if lang == LangGo {
-		code, err := imports.Process(".", buffer.Bytes(), nil)
+		code, err := format.Source(buffer.Bytes())
 		if err != nil {
 			return "", fmt.Errorf("%v\n%s", err, buffer)
 		}

vendor/github.com/ethereum/go-ethereum/accounts/abi/bind/template.go

@@ -64,6 +64,30 @@ const tmplSourceGo = `
 
 package {{.Package}}
 
+import (
+	"math/big"
+	"strings"
+
+	ethereum "github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/event"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var (
+	_ = big.NewInt
+	_ = strings.NewReader
+	_ = ethereum.NotFound
+	_ = abi.U256
+	_ = bind.Bind
+	_ = common.Big1
+	_ = types.BloomLookup
+	_ = event.NewSubscription
+)
+
 {{range $contract := .Contracts}}
 	// {{.Type}}ABI is the input ABI used to generate the binding from.
 	const {{.Type}}ABI = "{{.InputABI}}"

vendor/github.com/ethereum/go-ethereum/appveyor.yml

@@ -23,8 +23,8 @@ environment:
 install:
   - git submodule update --init
   - rmdir C:\go /s /q
-  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.11.windows-%GETH_ARCH%.zip
+  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.11.1.windows-%GETH_ARCH%.zip
-  - 7z x go1.11.windows-%GETH_ARCH%.zip -y -oC:\ > NUL
+  - 7z x go1.11.1.windows-%GETH_ARCH%.zip -y -oC:\ > NUL
   - go version
   - gcc --version
 

vendor/github.com/ethereum/go-ethereum/build/ci.go

@@ -320,9 +320,7 @@ func goToolArch(arch string, cc string, subcmd string, args ...string) *exec.Cmd
 // "tests" also includes static analysis tools such as vet.
 
 func doTest(cmdline []string) {
-	var (
+	coverage := flag.Bool("coverage", false, "Whether to record code coverage")
-		coverage = flag.Bool("coverage", false, "Whether to record code coverage")
-	)
 	flag.CommandLine.Parse(cmdline)
 	env := build.Env()
 
@@ -332,14 +330,11 @@ func doTest(cmdline []string) {
 	}
 	packages = build.ExpandPackagesNoVendor(packages)
 
-	// Run analysis tools before the tests.
-	build.MustRun(goTool("vet", packages...))
-
 	// Run the actual tests.
-	gotest := goTool("test", buildFlags(env)...)
 	// Test a single package at a time. CI builders are slow
 	// and some tests run into timeouts under load.
-	gotest.Args = append(gotest.Args, "-p", "1")
+	gotest := goTool("test", buildFlags(env)...)
+	gotest.Args = append(gotest.Args, "-p", "1", "-timeout", "5m")
 	if *coverage {
 		gotest.Args = append(gotest.Args, "-covermode=atomic", "-cover")
 	}
@@ -1040,7 +1035,7 @@ func xgoTool(args []string) *exec.Cmd {
 func doPurge(cmdline []string) {
 	var (
 		store = flag.String("store", "", `Destination from where to purge archives (usually "gethstore/builds")`)
-		limit = flag.Int("days", 30, `Age threshold above which to delete unstalbe archives`)
+		limit = flag.Int("days", 30, `Age threshold above which to delete unstable archives`)
 	)
 	flag.CommandLine.Parse(cmdline)
 

vendor/github.com/ethereum/go-ethereum/cmd/abigen/main.go

@@ -75,7 +75,7 @@ func main() {
 		bins  []string
 		types []string
 	)
-	if *solFlag != "" || *abiFlag == "-" {
+	if *solFlag != "" || (*abiFlag == "-" && *pkgFlag == "") {
 		// Generate the list of types to exclude from binding
 		exclude := make(map[string]bool)
 		for _, kind := range strings.Split(*excFlag, ",") {
@@ -111,7 +111,13 @@ func main() {
 		}
 	} else {
 		// Otherwise load up the ABI, optional bytecode and type name from the parameters
-		abi, err := ioutil.ReadFile(*abiFlag)
+		var abi []byte
+		var err error
+		if *abiFlag == "-" {
+			abi, err = ioutil.ReadAll(os.Stdin)
+		} else {
+			abi, err = ioutil.ReadFile(*abiFlag)
+		}
 		if err != nil {
 			fmt.Printf("Failed to read input ABI: %v\n", err)
 			os.Exit(-1)
@@ -155,6 +161,5 @@ func contractsFromStdin() (map[string]*compiler.Contract, error) {
 	if err != nil {
 		return nil, err
 	}
-
 	return compiler.ParseCombinedJSON(bytes, "", "", "", "")
 }

vendor/github.com/ethereum/go-ethereum/cmd/bootnode/main.go

@@ -29,6 +29,7 @@ import (
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/p2p/discover"
 	"github.com/ethereum/go-ethereum/p2p/discv5"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/nat"
 	"github.com/ethereum/go-ethereum/p2p/netutil"
 )
@@ -85,7 +86,7 @@ func main() {
 	}
 
 	if *writeAddr {
-		fmt.Printf("%v\n", discover.PubkeyID(&nodeKey.PublicKey))
+		fmt.Printf("%v\n", enode.PubkeyToIDV4(&nodeKey.PublicKey))
 		os.Exit(0)
 	}
 

vendor/github.com/ethereum/go-ethereum/cmd/clef/README.md

@@ -875,3 +875,4 @@ There are a couple of implementation for a UI. We'll try to keep this list up to
 | QtSigner| https://github.com/holiman/qtsigner/| Python3/QT-based| :+1:| :+1:| :+1:| :+1:| :+1:| :x: |  :+1: (partially)|
 | GtkSigner| https://github.com/holiman/gtksigner| Python3/GTK-based| :+1:| :x:| :x:| :+1:| :+1:| :x: |  :x: |
 | Frame | https://github.com/floating/frame/commits/go-signer| Electron-based| :x:| :x:| :x:| :x:| ?| :x: |  :x: |
+| Clef UI| https://github.com/kyokan/clef-ui| Golang/QT-based| :+1:| :+1:| :x:| :+1:| :+1:| :x: |  :+1: (approve tx only)|

vendor/github.com/ethereum/go-ethereum/cmd/clef/extapi_changelog.md

@@ -1,6 +1,13 @@
 ### Changelog for external API
 
+#### 4.0.0
 
+* The external `account_Ecrecover`-method was removed. 
+* The external `account_Import`-method was removed.
+
+#### 3.0.0
+
+* The external `account_List`-method was changed to not expose `url`, which contained info about the local filesystem. It now returns only a list of addresses. 
 
 #### 2.0.0
 

vendor/github.com/ethereum/go-ethereum/cmd/clef/intapi_changelog.md

@@ -1,5 +1,21 @@
 ### Changelog for internal API (ui-api)
 
+### 2.1.0
+
+* Add `OnInputRequired(info UserInputRequest)` to internal API. This method is used when Clef needs user input, e.g. passwords.
+
+The following structures are used:
+```golang
+       UserInputRequest struct {
+               Prompt     string `json:"prompt"`
+               Title      string `json:"title"`
+               IsPassword bool   `json:"isPassword"`
+       }
+       UserInputResponse struct {
+               Text string `json:"text"`
+       }
+```
+
 ### 2.0.0
 
 * Modify how `call_info` on a transaction is conveyed. New format:

vendor/github.com/ethereum/go-ethereum/cmd/clef/main.go

@@ -48,7 +48,7 @@ import (
 )
 
 // ExternalAPIVersion -- see extapi_changelog.md
-const ExternalAPIVersion = "2.0.0"
+const ExternalAPIVersion = "3.0.0"
 
 // InternalAPIVersion -- see intapi_changelog.md
 const InternalAPIVersion = "2.0.0"
@@ -70,6 +70,10 @@ var (
 		Value: 4,
 		Usage: "log level to emit to the screen",
 	}
+	advancedMode = cli.BoolFlag{
+		Name:  "advanced",
+		Usage: "If enabled, issues warnings instead of rejections for suspicious requests. Default off",
+	}
 	keystoreFlag = cli.StringFlag{
 		Name:  "keystore",
 		Value: filepath.Join(node.DefaultDataDir(), "keystore"),
@@ -191,6 +195,7 @@ func init() {
 		ruleFlag,
 		stdiouiFlag,
 		testFlag,
+		advancedMode,
 	}
 	app.Action = signer
 	app.Commands = []cli.Command{initCommand, attestCommand, addCredentialCommand}
@@ -384,7 +389,8 @@ func signer(c *cli.Context) error {
 		c.String(keystoreFlag.Name),
 		c.Bool(utils.NoUSBFlag.Name),
 		ui, db,
-		c.Bool(utils.LightKDFFlag.Name))
+		c.Bool(utils.LightKDFFlag.Name),
+		c.Bool(advancedMode.Name))
 
 	api = apiImpl
 

vendor/github.com/ethereum/go-ethereum/cmd/clef/tutorial.md

@@ -31,43 +31,51 @@ NOTE: This file does not contain your accounts. Those need to be backed up separ
 
 ## Creating rules
 
-Now, you can create a rule-file.
+Now, you can create a rule-file. Note that it is not mandatory to use predefined rules, but it's really handy.
 
 ```javascript
 function ApproveListing(){
     return "Approve"
 }
 ```
-Get the `sha256` hash....
+
+Get the `sha256` hash. If you have openssl, you can do `openssl sha256 rules.js`...
 ```text
 #sha256sum rules.js
 6c21d1737429d6d4f2e55146da0797782f3c0a0355227f19d702df377c165d72  rules.js
 ```
-...And then `attest` the file:
+...now `attest` the file...
 ```text
 #./signer attest 6c21d1737429d6d4f2e55146da0797782f3c0a0355227f19d702df377c165d72
 
 INFO [02-21|12:14:38] Ruleset attestation updated              sha256=6c21d1737429d6d4f2e55146da0797782f3c0a0355227f19d702df377c165d72
 ```
-At this point, we then start the signer with the rule-file:
 
+...and (this is required only for non-production versions) load a mock-up `4byte.json` by copying the file from the source to your current working directory:
 ```text
-#./signer --rules rules.json
+#cp $GOPATH/src/github.com/ethereum/go-ethereum/cmd/clef/4byte.json $PWD
+```
 
-INFO [02-21|12:15:18] Using CLI as UI-channel
+At this point, we can start the signer with the rule-file:
-INFO [02-21|12:15:18] Loaded 4byte db                          signatures=5509 file=./4byte.json
+```text
-INFO [02-21|12:15:18] Could not load rulefile, rules not enabled file=rulefile
+#./signer --rules rules.js --rpc
-DEBUG[02-21|12:15:18] FS scan times                            list=35.335µs set=5.536µs diff=5.073µs
+
-DEBUG[02-21|12:15:18] Ledger support enabled
+INFO [09-25|20:28:11.866] Using CLI as UI-channel 
-DEBUG[02-21|12:15:18] Trezor support enabled
+INFO [09-25|20:28:11.876] Loaded 4byte db                          signatures=5509 file=./4byte.json
-INFO [02-21|12:15:18] Audit logs configured                    file=audit.log
+INFO [09-25|20:28:11.877] Rule engine configured                   file=./rules.js
-INFO [02-21|12:15:18] HTTP endpoint opened                     url=http://localhost:8550
+DEBUG[09-25|20:28:11.877] FS scan times                            list=100.781µs set=13.253µs diff=5.761µs
+DEBUG[09-25|20:28:11.884] Ledger support enabled 
+DEBUG[09-25|20:28:11.888] Trezor support enabled 
+INFO [09-25|20:28:11.888] Audit logs configured                    file=audit.log
+DEBUG[09-25|20:28:11.888] HTTP registered                          namespace=account
+INFO [09-25|20:28:11.890] HTTP endpoint opened                     url=http://localhost:8550
+DEBUG[09-25|20:28:11.890] IPC registered                           namespace=account
+INFO [09-25|20:28:11.890] IPC endpoint opened                      url=<nil>
 ------- Signer info -------
+* extapi_version : 2.0.0
+* intapi_version : 2.0.0
 * extapi_http : http://localhost:8550
 * extapi_ipc : <nil>
-* extapi_version : 2.0.0
-* intapi_version : 1.2.0
-
 ```
 
 Any list-requests will now be auto-approved by our rule-file.
@@ -107,16 +115,16 @@ The `master_seed` was then used to derive a few other things:
 
 ## Adding credentials
 
-In order to make more useful rules; sign transactions, the signer needs access to the passwords needed to unlock keystores.
+In order to make more useful rules like signing transactions, the signer needs access to the passwords needed to unlock keystores.
 
 ```text
-#./signer addpw 0x694267f14675d7e1b9494fd8d72fefe1755710fa test
+#./signer addpw "0x694267f14675d7e1b9494fd8d72fefe1755710fa" "test_password"
 
 INFO [02-21|13:43:21] Credential store updated                 key=0x694267f14675d7e1b9494fd8d72fefe1755710fa
 ```
 ## More advanced rules
 
-Now let's update the rules to make use of credentials
+Now let's update the rules to make use of credentials:
 
 ```javascript
 function ApproveListing(){
@@ -134,13 +142,15 @@ function ApproveSignData(r){
 }
 
 ```
-In this example,
+In this example:
-* any requests to sign data with the account `0x694...` will be
+* Any requests to sign data with the account `0x694...` will be
-    * auto-approved if the message contains with `bazonk`,
+    * auto-approved if the message contains with `bazonk`
-    * and auto-rejected if it does not.
+    * auto-rejected if it does not.
-    * Any other signing-requests will be passed along for manual approve/reject.
+* Any other signing-requests will be passed along for manual approve/reject.
 
-..attest the new file
+_Note: make sure that `0x694...` is an account you have access to. You can create it either via the clef or the traditional account cli tool. If the latter was chosen, make sure both clef and geth use the same keystore by specifing `--keystore path/to/your/keystore` when running clef._
+
+Attest the new file...
 ```text
 #sha256sum rules.js
 2a0cb661dacfc804b6e95d935d813fd17c0997a7170e4092ffbc34ca976acd9f  rules.js
@@ -153,23 +163,26 @@ INFO [02-21|14:36:30] Ruleset attestation updated              sha256=2a0cb661da
 And start the signer:
 
 ```
-#./signer --rules rules.js
+#./signer --rules rules.js --rpc
 
-INFO [02-21|14:41:56] Using CLI as UI-channel
+INFO [09-25|21:02:16.450] Using CLI as UI-channel 
-INFO [02-21|14:41:56] Loaded 4byte db                          signatures=5509 file=./4byte.json
+INFO [09-25|21:02:16.466] Loaded 4byte db                          signatures=5509 file=./4byte.json
-INFO [02-21|14:41:56] Rule engine configured                   file=rules.js
+INFO [09-25|21:02:16.467] Rule engine configured                   file=./rules.js
-DEBUG[02-21|14:41:56] FS scan times                            list=34.607µs set=4.509µs diff=4.87µs
+DEBUG[09-25|21:02:16.468] FS scan times                            list=1.45262ms set=21.926µs diff=6.944µs
-DEBUG[02-21|14:41:56] Ledger support enabled
+DEBUG[09-25|21:02:16.473] Ledger support enabled 
-DEBUG[02-21|14:41:56] Trezor support enabled
+DEBUG[09-25|21:02:16.475] Trezor support enabled 
-INFO [02-21|14:41:56] Audit logs configured                    file=audit.log
+INFO [09-25|21:02:16.476] Audit logs configured                    file=audit.log
-INFO [02-21|14:41:56] HTTP endpoint opened                     url=http://localhost:8550
+DEBUG[09-25|21:02:16.476] HTTP registered                          namespace=account
+INFO [09-25|21:02:16.478] HTTP endpoint opened                     url=http://localhost:8550
+DEBUG[09-25|21:02:16.478] IPC registered                           namespace=account
+INFO [09-25|21:02:16.478] IPC endpoint opened                      url=<nil>
 ------- Signer info -------
 * extapi_version : 2.0.0
-* intapi_version : 1.2.0
+* intapi_version : 2.0.0
 * extapi_http : http://localhost:8550
 * extapi_ipc : <nil>
-INFO [02-21|14:41:56] error occurred during execution          error="ReferenceError: 'OnSignerStartup' is not defined"
 ```
+
 And then test signing, once with `bazonk` and once without:
 
 ```
@@ -190,9 +203,9 @@ INFO [02-21|14:42:56] Op rejected
 The signer also stores all traffic over the external API in a log file. The last 4 lines shows the two requests and their responses:
 
 ```text
-#tail audit.log -n 4
+#tail -n 4 audit.log
 t=2018-02-21T14:42:41+0100 lvl=info msg=Sign       api=signer type=request  metadata="{\"remote\":\"127.0.0.1:49706\",\"local\":\"localhost:8550\",\"scheme\":\"HTTP/1.1\"}" addr="0x694267f14675d7e1b9494fd8d72fefe1755710fa [chksum INVALID]" data=202062617a6f6e6b2062617a2067617a0a
 t=2018-02-21T14:42:42+0100 lvl=info msg=Sign       api=signer type=response data=93e6161840c3ae1efc26dc68dedab6e8fc233bb3fefa1b4645dbf6609b93dace160572ea4ab33240256bb6d3dadb60dcd9c515d6374d3cf614ee897408d41d541c error=nil
 t=2018-02-21T14:42:56+0100 lvl=info msg=Sign       api=signer type=request  metadata="{\"remote\":\"127.0.0.1:49708\",\"local\":\"localhost:8550\",\"scheme\":\"HTTP/1.1\"}" addr="0x694267f14675d7e1b9494fd8d72fefe1755710fa [chksum INVALID]" data=2020626f6e6b2062617a2067617a0a
 t=2018-02-21T14:42:56+0100 lvl=info msg=Sign       api=signer type=response data=                                                                                                                                   error="Request denied"
-```
+```

vendor/github.com/ethereum/go-ethereum/cmd/evm/staterunner.go

@@ -97,6 +97,10 @@ func stateTestCmd(ctx *cli.Context) error {
 			// Run the test and aggregate the result
 			result := &StatetestResult{Name: key, Fork: st.Fork, Pass: true}
 			state, err := test.Run(st, cfg)
+			// print state root for evmlab tracing
+			if ctx.GlobalBool(MachineFlag.Name) && state != nil {
+				fmt.Fprintf(os.Stderr, "{\"stateRoot\": \"%x\"}\n", state.IntermediateRoot(false))
+			}
 			if err != nil {
 				// Test failed, mark as so and dump any state to aid debugging
 				result.Pass, result.Error = false, err.Error()
@@ -105,10 +109,6 @@ func stateTestCmd(ctx *cli.Context) error {
 					result.State = &dump
 				}
 			}
-			// print state root for evmlab tracing (already committed above, so no need to delete objects again
-			if ctx.GlobalBool(MachineFlag.Name) && state != nil {
-				fmt.Fprintf(os.Stderr, "{\"stateRoot\": \"%x\"}\n", state.IntermediateRoot(false))
-			}
 
 			results = append(results, *result)
 

vendor/github.com/ethereum/go-ethereum/cmd/faucet/faucet.go

@@ -54,8 +54,8 @@ import (
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
 	"github.com/ethereum/go-ethereum/p2p/discv5"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/nat"
 	"github.com/ethereum/go-ethereum/params"
 	"golang.org/x/net/websocket"
@@ -255,8 +255,10 @@ func newFaucet(genesis *core.Genesis, port int, enodes []*discv5.Node, network u
 		return nil, err
 	}
 	for _, boot := range enodes {
-		old, _ := discover.ParseNode(boot.String())
+		old, err := enode.ParseV4(boot.String())
-		stack.Server().AddPeer(old)
+		if err != nil {
+			stack.Server().AddPeer(old)
+		}
 	}
 	// Attach to the client and retrieve and interesting metadatas
 	api, err := stack.Attach()

vendor/github.com/ethereum/go-ethereum/cmd/p2psim/main.go

@@ -47,7 +47,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/simulations"
 	"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
 	"github.com/ethereum/go-ethereum/rpc"
@@ -285,7 +285,7 @@ func createNode(ctx *cli.Context) error {
 		if err != nil {
 			return err
 		}
-		config.ID = discover.PubkeyID(&privKey.PublicKey)
+		config.ID = enode.PubkeyToIDV4(&privKey.PublicKey)
 		config.PrivateKey = privKey
 	}
 	if services := ctx.String("services"); services != "" {

vendor/github.com/ethereum/go-ethereum/cmd/puppeth/module_node.go

@@ -42,7 +42,7 @@ ADD genesis.json /genesis.json
 RUN \
   echo 'geth --cache 512 init /genesis.json' > geth.sh && \{{if .Unlock}}
 	echo 'mkdir -p /root/.ethereum/keystore/ && cp /signer.json /root/.ethereum/keystore/' >> geth.sh && \{{end}}
-	echo $'exec geth --networkid {{.NetworkID}} --cache 512 --port {{.Port}} --maxpeers {{.Peers}} {{.LightFlag}} --ethstats \'{{.Ethstats}}\' {{if .Bootnodes}}--bootnodes {{.Bootnodes}}{{end}} {{if .Etherbase}}--miner.etherbase {{.Etherbase}} --mine --miner.threads 1{{end}} {{if .Unlock}}--unlock 0 --password /signer.pass --mine{{end}} --miner.gastarget {{.GasTarget}} --miner.gaslimit {{.GasLimit}} --miner.gasprice {{.GasPrice}}' >> geth.sh
+	echo $'exec geth --networkid {{.NetworkID}} --cache 512 --port {{.Port}} --nat extip:{{.IP}} --maxpeers {{.Peers}} {{.LightFlag}} --ethstats \'{{.Ethstats}}\' {{if .Bootnodes}}--bootnodes {{.Bootnodes}}{{end}} {{if .Etherbase}}--miner.etherbase {{.Etherbase}} --mine --miner.threads 1{{end}} {{if .Unlock}}--unlock 0 --password /signer.pass --mine{{end}} --miner.gastarget {{.GasTarget}} --miner.gaslimit {{.GasLimit}} --miner.gasprice {{.GasPrice}}' >> geth.sh
 
 ENTRYPOINT ["/bin/sh", "geth.sh"]
 `
@@ -99,6 +99,7 @@ func deployNode(client *sshClient, network string, bootnodes []string, config *n
 	template.Must(template.New("").Parse(nodeDockerfile)).Execute(dockerfile, map[string]interface{}{
 		"NetworkID": config.network,
 		"Port":      config.port,
+		"IP":        client.address,
 		"Peers":     config.peersTotal,
 		"LightFlag": lightFlag,
 		"Bootnodes": strings.Join(bootnodes, ","),
@@ -227,10 +228,10 @@ func checkNode(client *sshClient, network string, boot bool) (*nodeInfos, error)
 
 	// Container available, retrieve its node ID and its genesis json
 	var out []byte
-	if out, err = client.Run(fmt.Sprintf("docker exec %s_%s_1 geth --exec admin.nodeInfo.id --cache=16 attach", network, kind)); err != nil {
+	if out, err = client.Run(fmt.Sprintf("docker exec %s_%s_1 geth --exec admin.nodeInfo.enode --cache=16 attach", network, kind)); err != nil {
 		return nil, ErrServiceUnreachable
 	}
-	id := bytes.Trim(bytes.TrimSpace(out), "\"")
+	enode := bytes.Trim(bytes.TrimSpace(out), "\"")
 
 	if out, err = client.Run(fmt.Sprintf("docker exec %s_%s_1 cat /genesis.json", network, kind)); err != nil {
 		return nil, ErrServiceUnreachable
@@ -265,7 +266,7 @@ func checkNode(client *sshClient, network string, boot bool) (*nodeInfos, error)
 		gasLimit:   gasLimit,
 		gasPrice:   gasPrice,
 	}
-	stats.enode = fmt.Sprintf("enode://%s@%s:%d", id, client.address, stats.port)
+	stats.enode = string(enode)
 
 	return stats, nil
 }

vendor/github.com/ethereum/go-ethereum/cmd/swarm/access.go

@@ -130,7 +130,7 @@ func accessNewACT(ctx *cli.Context) {
 		if err != nil {
 			utils.Fatalf("had an error reading the grantee public key list")
 		}
-		pkGrantees = strings.Split(string(bytes), "\n")
+		pkGrantees = strings.Split(strings.Trim(string(bytes), "\n"), "\n")
 	}
 
 	if passGranteesFilename != "" {
@@ -138,7 +138,7 @@ func accessNewACT(ctx *cli.Context) {
 		if err != nil {
 			utils.Fatalf("could not read password filename: %v", err)
 		}
-		passGrantees = strings.Split(string(bytes), "\n")
+		passGrantees = strings.Split(strings.Trim(string(bytes), "\n"), "\n")
 	}
 	accessKey, ae, actManifest, err = api.DoACT(ctx, privateKey, salt, pkGrantees, passGrantees)
 	if err != nil {

vendor/github.com/ethereum/go-ethereum/cmd/swarm/config.go

@@ -59,27 +59,28 @@ var (
 
 //constants for environment variables
 const (
-	SWARM_ENV_CHEQUEBOOK_ADDR      = "SWARM_CHEQUEBOOK_ADDR"
+	SWARM_ENV_CHEQUEBOOK_ADDR         = "SWARM_CHEQUEBOOK_ADDR"
-	SWARM_ENV_ACCOUNT              = "SWARM_ACCOUNT"
+	SWARM_ENV_ACCOUNT                 = "SWARM_ACCOUNT"
-	SWARM_ENV_LISTEN_ADDR          = "SWARM_LISTEN_ADDR"
+	SWARM_ENV_LISTEN_ADDR             = "SWARM_LISTEN_ADDR"
-	SWARM_ENV_PORT                 = "SWARM_PORT"
+	SWARM_ENV_PORT                    = "SWARM_PORT"
-	SWARM_ENV_NETWORK_ID           = "SWARM_NETWORK_ID"
+	SWARM_ENV_NETWORK_ID              = "SWARM_NETWORK_ID"
-	SWARM_ENV_SWAP_ENABLE          = "SWARM_SWAP_ENABLE"
+	SWARM_ENV_SWAP_ENABLE             = "SWARM_SWAP_ENABLE"
-	SWARM_ENV_SWAP_API             = "SWARM_SWAP_API"
+	SWARM_ENV_SWAP_API                = "SWARM_SWAP_API"
-	SWARM_ENV_SYNC_DISABLE         = "SWARM_SYNC_DISABLE"
+	SWARM_ENV_SYNC_DISABLE            = "SWARM_SYNC_DISABLE"
-	SWARM_ENV_SYNC_UPDATE_DELAY    = "SWARM_ENV_SYNC_UPDATE_DELAY"
+	SWARM_ENV_SYNC_UPDATE_DELAY       = "SWARM_ENV_SYNC_UPDATE_DELAY"
-	SWARM_ENV_LIGHT_NODE_ENABLE    = "SWARM_LIGHT_NODE_ENABLE"
+	SWARM_ENV_MAX_STREAM_PEER_SERVERS = "SWARM_ENV_MAX_STREAM_PEER_SERVERS"
-	SWARM_ENV_DELIVERY_SKIP_CHECK  = "SWARM_DELIVERY_SKIP_CHECK"
+	SWARM_ENV_LIGHT_NODE_ENABLE       = "SWARM_LIGHT_NODE_ENABLE"
-	SWARM_ENV_ENS_API              = "SWARM_ENS_API"
+	SWARM_ENV_DELIVERY_SKIP_CHECK     = "SWARM_DELIVERY_SKIP_CHECK"
-	SWARM_ENV_ENS_ADDR             = "SWARM_ENS_ADDR"
+	SWARM_ENV_ENS_API                 = "SWARM_ENS_API"
-	SWARM_ENV_CORS                 = "SWARM_CORS"
+	SWARM_ENV_ENS_ADDR                = "SWARM_ENS_ADDR"
-	SWARM_ENV_BOOTNODES            = "SWARM_BOOTNODES"
+	SWARM_ENV_CORS                    = "SWARM_CORS"
-	SWARM_ENV_PSS_ENABLE           = "SWARM_PSS_ENABLE"
+	SWARM_ENV_BOOTNODES               = "SWARM_BOOTNODES"
-	SWARM_ENV_STORE_PATH           = "SWARM_STORE_PATH"
+	SWARM_ENV_PSS_ENABLE              = "SWARM_PSS_ENABLE"
-	SWARM_ENV_STORE_CAPACITY       = "SWARM_STORE_CAPACITY"
+	SWARM_ENV_STORE_PATH              = "SWARM_STORE_PATH"
-	SWARM_ENV_STORE_CACHE_CAPACITY = "SWARM_STORE_CACHE_CAPACITY"
+	SWARM_ENV_STORE_CAPACITY          = "SWARM_STORE_CAPACITY"
-	SWARM_ACCESS_PASSWORD          = "SWARM_ACCESS_PASSWORD"
+	SWARM_ENV_STORE_CACHE_CAPACITY    = "SWARM_STORE_CACHE_CAPACITY"
-	GETH_ENV_DATADIR               = "GETH_DATADIR"
+	SWARM_ACCESS_PASSWORD             = "SWARM_ACCESS_PASSWORD"
+	GETH_ENV_DATADIR                  = "GETH_DATADIR"
 )
 
 // These settings ensure that TOML keys use the same names as Go struct fields.
@@ -124,7 +125,7 @@ func initSwarmNode(config *bzzapi.Config, stack *node.Node, ctx *cli.Context) {
 	//get the account for the provided swarm account
 	prvkey := getAccount(config.BzzAccount, ctx, stack)
 	//set the resolved config path (geth --datadir)
-	config.Path = stack.InstanceDir()
+	config.Path = expandPath(stack.InstanceDir())
 	//finally, initialize the configuration
 	config.Init(prvkey)
 	//configuration phase completed here
@@ -175,14 +176,18 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 	}
 
 	if networkid := ctx.GlobalString(SwarmNetworkIdFlag.Name); networkid != "" {
-		if id, _ := strconv.Atoi(networkid); id != 0 {
+		id, err := strconv.ParseUint(networkid, 10, 64)
-			currentConfig.NetworkID = uint64(id)
+		if err != nil {
+			utils.Fatalf("invalid cli flag %s: %v", SwarmNetworkIdFlag.Name, err)
+		}
+		if id != 0 {
+			currentConfig.NetworkID = id
 		}
 	}
 
 	if ctx.GlobalIsSet(utils.DataDirFlag.Name) {
 		if datadir := ctx.GlobalString(utils.DataDirFlag.Name); datadir != "" {
-			currentConfig.Path = datadir
+			currentConfig.Path = expandPath(datadir)
 		}
 	}
 
@@ -207,6 +212,9 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 		currentConfig.SyncUpdateDelay = d
 	}
 
+	// any value including 0 is acceptable
+	currentConfig.MaxStreamPeerServers = ctx.GlobalInt(SwarmMaxStreamPeerServersFlag.Name)
+
 	if ctx.GlobalIsSet(SwarmLightNodeEnabled.Name) {
 		currentConfig.LightNodeEnabled = true
 	}
@@ -226,6 +234,10 @@ func cmdLineOverride(currentConfig *bzzapi.Config, ctx *cli.Context) *bzzapi.Con
 		if len(ensAPIs) == 1 && ensAPIs[0] == "" {
 			ensAPIs = nil
 		}
+		for i := range ensAPIs {
+			ensAPIs[i] = expandPath(ensAPIs[i])
+		}
+
 		currentConfig.EnsAPIs = ensAPIs
 	}
 
@@ -262,13 +274,17 @@ func envVarsOverride(currentConfig *bzzapi.Config) (config *bzzapi.Config) {
 	}
 
 	if networkid := os.Getenv(SWARM_ENV_NETWORK_ID); networkid != "" {
-		if id, _ := strconv.Atoi(networkid); id != 0 {
+		id, err := strconv.ParseUint(networkid, 10, 64)
-			currentConfig.NetworkID = uint64(id)
+		if err != nil {
+			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_NETWORK_ID, err)
+		}
+		if id != 0 {
+			currentConfig.NetworkID = id
 		}
 	}
 
 	if datadir := os.Getenv(GETH_ENV_DATADIR); datadir != "" {
-		currentConfig.Path = datadir
+		currentConfig.Path = expandPath(datadir)
 	}
 
 	bzzport := os.Getenv(SWARM_ENV_PORT)
@@ -281,33 +297,50 @@ func envVarsOverride(currentConfig *bzzapi.Config) (config *bzzapi.Config) {
 	}
 
 	if swapenable := os.Getenv(SWARM_ENV_SWAP_ENABLE); swapenable != "" {
-		if swap, err := strconv.ParseBool(swapenable); err != nil {
+		swap, err := strconv.ParseBool(swapenable)
-			currentConfig.SwapEnabled = swap
+		if err != nil {
+			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_SWAP_ENABLE, err)
 		}
+		currentConfig.SwapEnabled = swap
 	}
 
 	if syncdisable := os.Getenv(SWARM_ENV_SYNC_DISABLE); syncdisable != "" {
-		if sync, err := strconv.ParseBool(syncdisable); err != nil {
+		sync, err := strconv.ParseBool(syncdisable)
-			currentConfig.SyncEnabled = !sync
+		if err != nil {
+			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_SYNC_DISABLE, err)
 		}
+		currentConfig.SyncEnabled = !sync
 	}
 
 	if v := os.Getenv(SWARM_ENV_DELIVERY_SKIP_CHECK); v != "" {
-		if skipCheck, err := strconv.ParseBool(v); err != nil {
+		skipCheck, err := strconv.ParseBool(v)
+		if err != nil {
 			currentConfig.DeliverySkipCheck = skipCheck
 		}
 	}
 
 	if v := os.Getenv(SWARM_ENV_SYNC_UPDATE_DELAY); v != "" {
-		if d, err := time.ParseDuration(v); err != nil {
+		d, err := time.ParseDuration(v)
-			currentConfig.SyncUpdateDelay = d
+		if err != nil {
+			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_SYNC_UPDATE_DELAY, err)
 		}
+		currentConfig.SyncUpdateDelay = d
+	}
+
+	if max := os.Getenv(SWARM_ENV_MAX_STREAM_PEER_SERVERS); max != "" {
+		m, err := strconv.Atoi(max)
+		if err != nil {
+			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_MAX_STREAM_PEER_SERVERS, err)
+		}
+		currentConfig.MaxStreamPeerServers = m
 	}
 
 	if lne := os.Getenv(SWARM_ENV_LIGHT_NODE_ENABLE); lne != "" {
-		if lightnode, err := strconv.ParseBool(lne); err != nil {
+		lightnode, err := strconv.ParseBool(lne)
-			currentConfig.LightNodeEnabled = lightnode
+		if err != nil {
+			utils.Fatalf("invalid environment variable %s: %v", SWARM_ENV_LIGHT_NODE_ENABLE, err)
 		}
+		currentConfig.LightNodeEnabled = lightnode
 	}
 
 	if swapapi := os.Getenv(SWARM_ENV_SWAP_API); swapapi != "" {

vendor/github.com/ethereum/go-ethereum/cmd/swarm/db.go

@@ -93,21 +93,6 @@ func dbImport(ctx *cli.Context) {
 	log.Info(fmt.Sprintf("successfully imported %d chunks", count))
 }
 
-func dbClean(ctx *cli.Context) {
-	args := ctx.Args()
-	if len(args) != 2 {
-		utils.Fatalf("invalid arguments, please specify <chunkdb> (path to a local chunk database) and the base key")
-	}
-
-	store, err := openLDBStore(args[0], common.Hex2Bytes(args[1]))
-	if err != nil {
-		utils.Fatalf("error opening local chunk database: %s", err)
-	}
-	defer store.Close()
-
-	store.Cleanup()
-}
-
 func openLDBStore(path string, basekey []byte) (*storage.LDBStore, error) {
 	if _, err := os.Stat(filepath.Join(path, "CURRENT")); err != nil {
 		return nil, fmt.Errorf("invalid chunkdb path: %s", err)

vendor/github.com/ethereum/go-ethereum/cmd/swarm/feeds.go

@@ -0,0 +1,172 @@
+// Copyright 2016 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/>.
+
+// Command feed allows the user to create and update signed Swarm feeds
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/crypto"
+
+	"github.com/ethereum/go-ethereum/cmd/utils"
+	swarm "github.com/ethereum/go-ethereum/swarm/api/client"
+	"github.com/ethereum/go-ethereum/swarm/storage/feed"
+	"gopkg.in/urfave/cli.v1"
+)
+
+func NewGenericSigner(ctx *cli.Context) feed.Signer {
+	return feed.NewGenericSigner(getPrivKey(ctx))
+}
+
+func getTopic(ctx *cli.Context) (topic feed.Topic) {
+	var name = ctx.String(SwarmFeedNameFlag.Name)
+	var relatedTopic = ctx.String(SwarmFeedTopicFlag.Name)
+	var relatedTopicBytes []byte
+	var err error
+
+	if relatedTopic != "" {
+		relatedTopicBytes, err = hexutil.Decode(relatedTopic)
+		if err != nil {
+			utils.Fatalf("Error parsing topic: %s", err)
+		}
+	}
+
+	topic, err = feed.NewTopic(name, relatedTopicBytes)
+	if err != nil {
+		utils.Fatalf("Error parsing topic: %s", err)
+	}
+	return topic
+}
+
+// swarm feed create <frequency> [--name <name>] [--data <0x Hexdata> [--multihash=false]]
+// swarm feed update <Manifest Address or ENS domain> <0x Hexdata> [--multihash=false]
+// swarm feed info <Manifest Address or ENS domain>
+
+func feedCreateManifest(ctx *cli.Context) {
+	var (
+		bzzapi = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
+		client = swarm.NewClient(bzzapi)
+	)
+
+	newFeedUpdateRequest := feed.NewFirstRequest(getTopic(ctx))
+	newFeedUpdateRequest.Feed.User = feedGetUser(ctx)
+
+	manifestAddress, err := client.CreateFeedWithManifest(newFeedUpdateRequest)
+	if err != nil {
+		utils.Fatalf("Error creating feed manifest: %s", err.Error())
+		return
+	}
+	fmt.Println(manifestAddress) // output manifest address to the user in a single line (useful for other commands to pick up)
+
+}
+
+func feedUpdate(ctx *cli.Context) {
+	args := ctx.Args()
+
+	var (
+		bzzapi                  = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
+		client                  = swarm.NewClient(bzzapi)
+		manifestAddressOrDomain = ctx.String(SwarmFeedManifestFlag.Name)
+	)
+
+	if len(args) < 1 {
+		fmt.Println("Incorrect number of arguments")
+		cli.ShowCommandHelpAndExit(ctx, "update", 1)
+		return
+	}
+
+	signer := NewGenericSigner(ctx)
+
+	data, err := hexutil.Decode(args[0])
+	if err != nil {
+		utils.Fatalf("Error parsing data: %s", err.Error())
+		return
+	}
+
+	var updateRequest *feed.Request
+	var query *feed.Query
+
+	if manifestAddressOrDomain == "" {
+		query = new(feed.Query)
+		query.User = signer.Address()
+		query.Topic = getTopic(ctx)
+
+	}
+
+	// Retrieve a feed update request
+	updateRequest, err = client.GetFeedRequest(query, manifestAddressOrDomain)
+	if err != nil {
+		utils.Fatalf("Error retrieving feed status: %s", err.Error())
+	}
+
+	// set the new data
+	updateRequest.SetData(data)
+
+	// sign update
+	if err = updateRequest.Sign(signer); err != nil {
+		utils.Fatalf("Error signing feed update: %s", err.Error())
+	}
+
+	// post update
+	err = client.UpdateFeed(updateRequest)
+	if err != nil {
+		utils.Fatalf("Error updating feed: %s", err.Error())
+		return
+	}
+}
+
+func feedInfo(ctx *cli.Context) {
+	var (
+		bzzapi                  = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
+		client                  = swarm.NewClient(bzzapi)
+		manifestAddressOrDomain = ctx.String(SwarmFeedManifestFlag.Name)
+	)
+
+	var query *feed.Query
+	if manifestAddressOrDomain == "" {
+		query = new(feed.Query)
+		query.Topic = getTopic(ctx)
+		query.User = feedGetUser(ctx)
+	}
+
+	metadata, err := client.GetFeedRequest(query, manifestAddressOrDomain)
+	if err != nil {
+		utils.Fatalf("Error retrieving feed metadata: %s", err.Error())
+		return
+	}
+	encodedMetadata, err := metadata.MarshalJSON()
+	if err != nil {
+		utils.Fatalf("Error encoding metadata to JSON for display:%s", err)
+	}
+	fmt.Println(string(encodedMetadata))
+}
+
+func feedGetUser(ctx *cli.Context) common.Address {
+	var user = ctx.String(SwarmFeedUserFlag.Name)
+	if user != "" {
+		return common.HexToAddress(user)
+	}
+	pk := getPrivKey(ctx)
+	if pk == nil {
+		utils.Fatalf("Cannot read private key. Must specify --user or --bzzaccount")
+	}
+	return crypto.PubkeyToAddress(pk.PublicKey)
+
+}

vendor/github.com/ethereum/go-ethereum/cmd/swarm/main.go

@@ -38,7 +38,7 @@ import (
 	"github.com/ethereum/go-ethereum/internal/debug"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/node"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/swarm"
 	bzzapi "github.com/ethereum/go-ethereum/swarm/api"
 	swarmmetrics "github.com/ethereum/go-ethereum/swarm/metrics"
@@ -116,6 +116,12 @@ var (
 		Usage:  "Duration for sync subscriptions update after no new peers are added (default 15s)",
 		EnvVar: SWARM_ENV_SYNC_UPDATE_DELAY,
 	}
+	SwarmMaxStreamPeerServersFlag = cli.IntFlag{
+		Name:   "max-stream-peer-servers",
+		Usage:  "Limit of Stream peer servers, 0 denotes unlimited",
+		EnvVar: SWARM_ENV_MAX_STREAM_PEER_SERVERS,
+		Value:  10000, // A very large default value is possible as stream servers have very small memory footprint
+	}
 	SwarmLightNodeEnabled = cli.BoolFlag{
 		Name:   "lightnode",
 		Usage:  "Enable Swarm LightNode (default false)",
@@ -197,22 +203,30 @@ var (
 		Usage:  "Number of recent chunks cached in memory (default 5000)",
 		EnvVar: SWARM_ENV_STORE_CACHE_CAPACITY,
 	}
-	SwarmResourceMultihashFlag = cli.BoolFlag{
-		Name:  "multihash",
-		Usage: "Determines how to interpret data for a resource update. If not present, data will be interpreted as raw, literal data that will be included in the resource",
-	}
-	SwarmResourceNameFlag = cli.StringFlag{
-		Name:  "name",
-		Usage: "User-defined name for the new resource",
-	}
-	SwarmResourceDataOnCreateFlag = cli.StringFlag{
-		Name:  "data",
-		Usage: "Initializes the resource with the given hex-encoded data. Data must be prefixed by 0x",
-	}
 	SwarmCompressedFlag = cli.BoolFlag{
 		Name:  "compressed",
 		Usage: "Prints encryption keys in compressed form",
 	}
+	SwarmFeedNameFlag = cli.StringFlag{
+		Name:  "name",
+		Usage: "User-defined name for the new feed, limited to 32 characters. If combined with topic, it will refer to a subtopic with this name",
+	}
+	SwarmFeedTopicFlag = cli.StringFlag{
+		Name:  "topic",
+		Usage: "User-defined topic this feed is tracking, hex encoded. Limited to 64 hexadecimal characters",
+	}
+	SwarmFeedDataOnCreateFlag = cli.StringFlag{
+		Name:  "data",
+		Usage: "Initializes the feed with the given hex-encoded data. Data must be prefixed by 0x",
+	}
+	SwarmFeedManifestFlag = cli.StringFlag{
+		Name:  "manifest",
+		Usage: "Refers to the feed through a manifest",
+	}
+	SwarmFeedUserFlag = cli.StringFlag{
+		Name:  "user",
+		Usage: "Indicates the user who updates the feed",
+	}
 )
 
 //declare a few constant error messages, useful for later error check comparisons in test
@@ -242,12 +256,12 @@ func init() {
 	utils.ListenPortFlag.Value = 30399
 }
 
-var app = utils.NewApp(gitCommit, "Ethereum Swarm")
+var app = utils.NewApp("", "Ethereum Swarm")
 
 // This init function creates the cli.App.
 func init() {
 	app.Action = bzzd
-	app.HideVersion = true // we have a command to print the version
+	app.Version = sv.ArchiveVersion(gitCommit)
 	app.Copyright = "Copyright 2013-2016 The go-ethereum Authors"
 	app.Commands = []cli.Command{
 		{
@@ -332,36 +346,62 @@ func init() {
 		},
 		{
 			CustomHelpTemplate: helpTemplate,
-			Name:               "resource",
+			Name:               "feed",
-			Usage:              "(Advanced) Create and update Mutable Resources",
+			Usage:              "(Advanced) Create and update Swarm Feeds",
 			ArgsUsage:          "<create|update|info>",
-			Description:        "Works with Mutable Resource Updates",
+			Description:        "Works with Swarm Feeds",
 			Subcommands: []cli.Command{
 				{
-					Action:             resourceCreate,
+					Action:             feedCreateManifest,
 					CustomHelpTemplate: helpTemplate,
 					Name:               "create",
-					Usage:              "creates a new Mutable Resource",
+					Usage:              "creates and publishes a new feed manifest",
-					ArgsUsage:          "<frequency>",
+					Description: `creates and publishes a new feed manifest pointing to a specified user's updates about a particular topic.
-					Description:        "creates a new Mutable Resource",
+					The feed topic can be built in the following ways:
-					Flags:              []cli.Flag{SwarmResourceNameFlag, SwarmResourceDataOnCreateFlag, SwarmResourceMultihashFlag},
+					* use --topic to set the topic to an arbitrary binary hex string.
+					* use --name to set the topic to a human-readable name.
+					    For example --name could be set to "profile-picture", meaning this feed allows to get this user's current profile picture.
+					* use both --topic and --name to create named subtopics. 
+						For example, --topic could be set to an Ethereum contract address and --name could be set to "comments", meaning
+						this feed tracks a discussion about that contract.
+					The --user flag allows to have this manifest refer to a user other than yourself. If not specified,
+					it will then default to your local account (--bzzaccount)`,
+					Flags: []cli.Flag{SwarmFeedNameFlag, SwarmFeedTopicFlag, SwarmFeedUserFlag},
 				},
 				{
-					Action:             resourceUpdate,
+					Action:             feedUpdate,
 					CustomHelpTemplate: helpTemplate,
 					Name:               "update",
-					Usage:              "updates the content of an existing Mutable Resource",
+					Usage:              "updates the content of an existing Swarm Feed",
-					ArgsUsage:          "<Manifest Address or ENS domain> <0x Hex data>",
+					ArgsUsage:          "<0x Hex data>",
-					Description:        "updates the content of an existing Mutable Resource",
+					Description: `publishes a new update on the specified topic
-					Flags:              []cli.Flag{SwarmResourceMultihashFlag},
+					The feed topic can be built in the following ways:
+					* use --topic to set the topic to an arbitrary binary hex string.
+					* use --name to set the topic to a human-readable name.
+					    For example --name could be set to "profile-picture", meaning this feed allows to get this user's current profile picture.
+					* use both --topic and --name to create named subtopics. 
+						For example, --topic could be set to an Ethereum contract address and --name could be set to "comments", meaning
+						this feed tracks a discussion about that contract.
+					
+					If you have a manifest, you can specify it with --manifest to refer to the feed,
+					instead of using --topic / --name
+					`,
+					Flags: []cli.Flag{SwarmFeedManifestFlag, SwarmFeedNameFlag, SwarmFeedTopicFlag},
 				},
 				{
-					Action:             resourceInfo,
+					Action:             feedInfo,
 					CustomHelpTemplate: helpTemplate,
 					Name:               "info",
-					Usage:              "obtains information about an existing Mutable Resource",
+					Usage:              "obtains information about an existing Swarm feed",
-					ArgsUsage:          "<Manifest Address or ENS domain>",
+					Description: `obtains information about an existing Swarm feed
-					Description:        "obtains information about an existing Mutable Resource",
+					The topic can be specified directly with the --topic flag as an hex string
+					If no topic is specified, the default topic (zero) will be used
+					The --name flag can be used to specify subtopics with a specific name.
+					The --user flag allows to refer to a user other than yourself. If not specified,
+					it will then default to your local account (--bzzaccount)
+					If you have a manifest, you can specify it with --manifest instead of --topic / --name / ---user
+					to refer to the feed`,
+					Flags: []cli.Flag{SwarmFeedManifestFlag, SwarmFeedNameFlag, SwarmFeedTopicFlag, SwarmFeedUserFlag},
 				},
 			},
 		},
@@ -497,14 +537,6 @@ pv(1) tool to get a progress bar:
 
     pv chunks.tar | swarm db import ~/.ethereum/swarm/bzz-KEY/chunks -`,
 				},
-				{
-					Action:             dbClean,
-					CustomHelpTemplate: helpTemplate,
-					Name:               "clean",
-					Usage:              "remove corrupt entries from a local chunk database",
-					ArgsUsage:          "<chunkdb>",
-					Description:        "Remove corrupt entries from a local chunk database",
-				},
 			},
 		},
 
@@ -542,6 +574,7 @@ pv(1) tool to get a progress bar:
 		SwarmSwapAPIFlag,
 		SwarmSyncDisabledFlag,
 		SwarmSyncUpdateDelay,
+		SwarmMaxStreamPeerServersFlag,
 		SwarmLightNodeEnabled,
 		SwarmDeliverySkipCheckFlag,
 		SwarmListenAddrFlag,
@@ -697,7 +730,7 @@ func getAccount(bzzaccount string, ctx *cli.Context, stack *node.Node) *ecdsa.Pr
 }
 
 // getPrivKey returns the private key of the specified bzzaccount
-// Used only by client commands, such as `resource`
+// Used only by client commands, such as `feed`
 func getPrivKey(ctx *cli.Context) *ecdsa.PrivateKey {
 	// booting up the swarm node just as we do in bzzd action
 	bzzconfig, err := buildConfig(ctx)
@@ -788,10 +821,10 @@ func setSwarmBootstrapNodes(ctx *cli.Context, cfg *node.Config) {
 		return
 	}
 
-	cfg.P2P.BootstrapNodes = []*discover.Node{}
+	cfg.P2P.BootstrapNodes = []*enode.Node{}
 
 	for _, url := range SwarmBootnodes {
-		node, err := discover.ParseNode(url)
+		node, err := enode.ParseV4(url)
 		if err != nil {
 			log.Error("Bootstrap URL invalid", "enode", url, "err", err)
 		}

vendor/github.com/ethereum/go-ethereum/cmd/swarm/mimegen/generator.go

@@ -0,0 +1,124 @@
+// Copyright 2018 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
+
+// Standard "mime" package rely on system-settings, see mime.osInitMime
+// Swarm will run on many OS/Platform/Docker and must behave similar
+// This command generates code to add common mime types based on mime.types file
+//
+// mime.types file provided by mailcap, which follow https://www.iana.org/assignments/media-types/media-types.xhtml
+//
+// Get last version of mime.types file by:
+// docker run --rm -v $(pwd):/tmp alpine:edge /bin/sh -c "apk add -U mailcap; mv /etc/mime.types /tmp"
+
+import (
+	"bufio"
+	"bytes"
+	"flag"
+	"html/template"
+	"io/ioutil"
+	"strings"
+
+	"log"
+)
+
+var (
+	typesFlag   = flag.String("types", "", "Input mime.types file")
+	packageFlag = flag.String("package", "", "Golang package in output file")
+	outFlag     = flag.String("out", "", "Output file name for the generated mime types")
+)
+
+type mime struct {
+	Name string
+	Exts []string
+}
+
+type templateParams struct {
+	PackageName string
+	Mimes       []mime
+}
+
+func main() {
+	// Parse and ensure all needed inputs are specified
+	flag.Parse()
+	if *typesFlag == "" {
+		log.Fatalf("--types is required")
+	}
+	if *packageFlag == "" {
+		log.Fatalf("--types is required")
+	}
+	if *outFlag == "" {
+		log.Fatalf("--out is required")
+	}
+
+	params := templateParams{
+		PackageName: *packageFlag,
+	}
+
+	types, err := ioutil.ReadFile(*typesFlag)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	scanner := bufio.NewScanner(bytes.NewReader(types))
+	for scanner.Scan() {
+		txt := scanner.Text()
+		if strings.HasPrefix(txt, "#") || len(txt) == 0 {
+			continue
+		}
+		parts := strings.Fields(txt)
+		if len(parts) == 1 {
+			continue
+		}
+		params.Mimes = append(params.Mimes, mime{parts[0], parts[1:]})
+	}
+
+	if err = scanner.Err(); err != nil {
+		log.Fatal(err)
+	}
+
+	result := bytes.NewBuffer([]byte{})
+
+	if err := template.Must(template.New("_").Parse(tpl)).Execute(result, params); err != nil {
+		log.Fatal(err)
+	}
+
+	if err := ioutil.WriteFile(*outFlag, result.Bytes(), 0600); err != nil {
+		log.Fatal(err)
+	}
+}
+
+var tpl = `// Code generated by github.com/ethereum/go-ethereum/cmd/swarm/mimegen. DO NOT EDIT.
+
+package {{ .PackageName }}
+
+import "mime"
+func init() {
+	var mimeTypes = map[string]string{
+{{- range .Mimes -}}
+	{{ $name := .Name -}}
+	{{- range .Exts }}
+		".{{ . }}": "{{ $name | html }}",
+	{{- end }}
+{{- end }}
+	}
+	for ext, name := range mimeTypes {
+		if err := mime.AddExtensionType(ext, name); err != nil {
+			panic(err)
+		}
+	}
+}
+`

vendor/github.com/ethereum/go-ethereum/cmd/swarm/mru.go

@@ -1,169 +0,0 @@
-// Copyright 2016 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/>.
-
-// Command resource allows the user to create and update signed mutable resource updates
-package main
-
-import (
-	"fmt"
-	"strconv"
-	"strings"
-
-	"github.com/ethereum/go-ethereum/common/hexutil"
-
-	"github.com/ethereum/go-ethereum/cmd/utils"
-	swarm "github.com/ethereum/go-ethereum/swarm/api/client"
-	"github.com/ethereum/go-ethereum/swarm/storage/mru"
-	"gopkg.in/urfave/cli.v1"
-)
-
-func NewGenericSigner(ctx *cli.Context) mru.Signer {
-	return mru.NewGenericSigner(getPrivKey(ctx))
-}
-
-// swarm resource create <frequency> [--name <name>] [--data <0x Hexdata> [--multihash=false]]
-// swarm resource update <Manifest Address or ENS domain> <0x Hexdata> [--multihash=false]
-// swarm resource info <Manifest Address or ENS domain>
-
-func resourceCreate(ctx *cli.Context) {
-	args := ctx.Args()
-
-	var (
-		bzzapi      = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
-		client      = swarm.NewClient(bzzapi)
-		multihash   = ctx.Bool(SwarmResourceMultihashFlag.Name)
-		initialData = ctx.String(SwarmResourceDataOnCreateFlag.Name)
-		name        = ctx.String(SwarmResourceNameFlag.Name)
-	)
-
-	if len(args) < 1 {
-		fmt.Println("Incorrect number of arguments")
-		cli.ShowCommandHelpAndExit(ctx, "create", 1)
-		return
-	}
-	signer := NewGenericSigner(ctx)
-	frequency, err := strconv.ParseUint(args[0], 10, 64)
-	if err != nil {
-		fmt.Printf("Frequency formatting error: %s\n", err.Error())
-		cli.ShowCommandHelpAndExit(ctx, "create", 1)
-		return
-	}
-
-	metadata := mru.ResourceMetadata{
-		Name:      name,
-		Frequency: frequency,
-		Owner:     signer.Address(),
-	}
-
-	var newResourceRequest *mru.Request
-	if initialData != "" {
-		initialDataBytes, err := hexutil.Decode(initialData)
-		if err != nil {
-			fmt.Printf("Error parsing data: %s\n", err.Error())
-			cli.ShowCommandHelpAndExit(ctx, "create", 1)
-			return
-		}
-		newResourceRequest, err = mru.NewCreateUpdateRequest(&metadata)
-		if err != nil {
-			utils.Fatalf("Error creating new resource request: %s", err)
-		}
-		newResourceRequest.SetData(initialDataBytes, multihash)
-		if err = newResourceRequest.Sign(signer); err != nil {
-			utils.Fatalf("Error signing resource update: %s", err.Error())
-		}
-	} else {
-		newResourceRequest, err = mru.NewCreateRequest(&metadata)
-		if err != nil {
-			utils.Fatalf("Error creating new resource request: %s", err)
-		}
-	}
-
-	manifestAddress, err := client.CreateResource(newResourceRequest)
-	if err != nil {
-		utils.Fatalf("Error creating resource: %s", err.Error())
-		return
-	}
-	fmt.Println(manifestAddress) // output manifest address to the user in a single line (useful for other commands to pick up)
-
-}
-
-func resourceUpdate(ctx *cli.Context) {
-	args := ctx.Args()
-
-	var (
-		bzzapi    = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
-		client    = swarm.NewClient(bzzapi)
-		multihash = ctx.Bool(SwarmResourceMultihashFlag.Name)
-	)
-
-	if len(args) < 2 {
-		fmt.Println("Incorrect number of arguments")
-		cli.ShowCommandHelpAndExit(ctx, "update", 1)
-		return
-	}
-	signer := NewGenericSigner(ctx)
-	manifestAddressOrDomain := args[0]
-	data, err := hexutil.Decode(args[1])
-	if err != nil {
-		utils.Fatalf("Error parsing data: %s", err.Error())
-		return
-	}
-
-	// Retrieve resource status and metadata out of the manifest
-	updateRequest, err := client.GetResourceMetadata(manifestAddressOrDomain)
-	if err != nil {
-		utils.Fatalf("Error retrieving resource status: %s", err.Error())
-	}
-
-	// set the new data
-	updateRequest.SetData(data, multihash)
-
-	// sign update
-	if err = updateRequest.Sign(signer); err != nil {
-		utils.Fatalf("Error signing resource update: %s", err.Error())
-	}
-
-	// post update
-	err = client.UpdateResource(updateRequest)
-	if err != nil {
-		utils.Fatalf("Error updating resource: %s", err.Error())
-		return
-	}
-}
-
-func resourceInfo(ctx *cli.Context) {
-	var (
-		bzzapi = strings.TrimRight(ctx.GlobalString(SwarmApiFlag.Name), "/")
-		client = swarm.NewClient(bzzapi)
-	)
-	args := ctx.Args()
-	if len(args) < 1 {
-		fmt.Println("Incorrect number of arguments.")
-		cli.ShowCommandHelpAndExit(ctx, "info", 1)
-		return
-	}
-	manifestAddressOrDomain := args[0]
-	metadata, err := client.GetResourceMetadata(manifestAddressOrDomain)
-	if err != nil {
-		utils.Fatalf("Error retrieving resource metadata: %s", err.Error())
-		return
-	}
-	encodedMetadata, err := metadata.MarshalJSON()
-	if err != nil {
-		utils.Fatalf("Error encoding metadata to JSON for display:%s", err)
-	}
-	fmt.Println(string(encodedMetadata))
-}

vendor/github.com/ethereum/go-ethereum/cmd/swarm/upload.go

@@ -22,16 +22,15 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
-	"mime"
-	"net/http"
 	"os"
 	"os/user"
 	"path"
 	"path/filepath"
 	"strings"
 
-	"github.com/ethereum/go-ethereum/cmd/utils"
 	swarm "github.com/ethereum/go-ethereum/swarm/api/client"
+
+	"github.com/ethereum/go-ethereum/cmd/utils"
 	"gopkg.in/urfave/cli.v1"
 )
 
@@ -118,10 +117,9 @@ func upload(ctx *cli.Context) {
 				return "", fmt.Errorf("error opening file: %s", err)
 			}
 			defer f.Close()
-			if mimeType == "" {
+			if mimeType != "" {
-				mimeType = detectMimeType(file)
+				f.ContentType = mimeType
 			}
-			f.ContentType = mimeType
 			return client.Upload(f, "", toEncrypt)
 		}
 	}
@@ -138,6 +136,12 @@ func upload(ctx *cli.Context) {
 // 3. cleans the path, e.g. /a/b/../c -> /a/c
 // Note, it has limitations, e.g. ~someuser/tmp will not be expanded
 func expandPath(p string) string {
+	if i := strings.Index(p, ":"); i > 0 {
+		return p
+	}
+	if i := strings.Index(p, "@"); i > 0 {
+		return p
+	}
 	if strings.HasPrefix(p, "~/") || strings.HasPrefix(p, "~\\") {
 		if home := homeDir(); home != "" {
 			p = home + p[1:]
@@ -155,19 +159,3 @@ func homeDir() string {
 	}
 	return ""
 }
-
-func detectMimeType(file string) string {
-	if ext := filepath.Ext(file); ext != "" {
-		return mime.TypeByExtension(ext)
-	}
-	f, err := os.Open(file)
-	if err != nil {
-		return ""
-	}
-	defer f.Close()
-	buf := make([]byte, 512)
-	if n, _ := f.Read(buf); n > 0 {
-		return http.DetectContentType(buf)
-	}
-	return ""
-}

vendor/github.com/ethereum/go-ethereum/cmd/utils/flags.go

@@ -52,8 +52,8 @@ import (
 	"github.com/ethereum/go-ethereum/metrics/influxdb"
 	"github.com/ethereum/go-ethereum/node"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
 	"github.com/ethereum/go-ethereum/p2p/discv5"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/nat"
 	"github.com/ethereum/go-ethereum/p2p/netutil"
 	"github.com/ethereum/go-ethereum/params"
@@ -710,9 +710,9 @@ func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
 		return // already set, don't apply defaults.
 	}
 
-	cfg.BootstrapNodes = make([]*discover.Node, 0, len(urls))
+	cfg.BootstrapNodes = make([]*enode.Node, 0, len(urls))
 	for _, url := range urls {
-		node, err := discover.ParseNode(url)
+		node, err := enode.ParseV4(url)
 		if err != nil {
 			log.Crit("Bootstrap URL invalid", "enode", url, "err", err)
 		}
@@ -1137,11 +1137,14 @@ func checkExclusive(ctx *cli.Context, args ...interface{}) {
 		if i+1 < len(args) {
 			switch option := args[i+1].(type) {
 			case string:
-				// Extended flag, expand the name and shift the arguments
+				// Extended flag check, make sure value set doesn't conflict with passed in option
 				if ctx.GlobalString(flag.GetName()) == option {
 					name += "=" + option
+					set = append(set, "--"+name)
 				}
+				// shift arguments and continue
 				i++
+				continue
 
 			case cli.Flag:
 			default:

vendor/github.com/ethereum/go-ethereum/cmd/wnode/main.go

@@ -41,7 +41,7 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/nat"
 	"github.com/ethereum/go-ethereum/whisper/mailserver"
 	whisper "github.com/ethereum/go-ethereum/whisper/whisperv6"
@@ -175,7 +175,7 @@ func initialize() {
 	log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(*argVerbosity), log.StreamHandler(os.Stderr, log.TerminalFormat(false))))
 
 	done = make(chan struct{})
-	var peers []*discover.Node
+	var peers []*enode.Node
 	var err error
 
 	if *generateKey {
@@ -203,7 +203,7 @@ func initialize() {
 		if len(*argEnode) == 0 {
 			argEnode = scanLineA("Please enter the peer's enode: ")
 		}
-		peer := discover.MustParseNode(*argEnode)
+		peer := enode.MustParseV4(*argEnode)
 		peers = append(peers, peer)
 	}
 
@@ -747,11 +747,11 @@ func requestExpiredMessagesLoop() {
 }
 
 func extractIDFromEnode(s string) []byte {
-	n, err := discover.ParseNode(s)
+	n, err := enode.ParseV4(s)
 	if err != nil {
 		utils.Fatalf("Failed to parse enode: %s", err)
 	}
-	return n.ID[:]
+	return n.ID().Bytes()
 }
 
 // obfuscateBloom adds 16 random bits to the bloom

vendor/github.com/ethereum/go-ethereum/contracts/ens/ens.go

@@ -151,6 +151,38 @@ func (self *ENS) Resolve(name string) (common.Hash, error) {
 	return common.BytesToHash(ret[:]), nil
 }
 
+// Addr is a non-transactional call that returns the address associated with a name.
+func (self *ENS) Addr(name string) (common.Address, error) {
+	node := EnsNode(name)
+
+	resolver, err := self.getResolver(node)
+	if err != nil {
+		return common.Address{}, err
+	}
+
+	ret, err := resolver.Addr(node)
+	if err != nil {
+		return common.Address{}, err
+	}
+
+	return common.BytesToAddress(ret[:]), nil
+}
+
+// SetAddress sets the address associated with a name. Only works if the caller
+// owns the name, and the associated resolver implements a `setAddress` function.
+func (self *ENS) SetAddr(name string, addr common.Address) (*types.Transaction, error) {
+	node := EnsNode(name)
+
+	resolver, err := self.getResolver(node)
+	if err != nil {
+		return nil, err
+	}
+
+	opts := self.TransactOpts
+	opts.GasLimit = 200000
+	return resolver.Contract.SetAddr(&opts, node, addr)
+}
+
 // Register registers a new domain name for the caller, making them the owner of the new name.
 // Only works if the registrar for the parent domain implements the FIFS registrar protocol.
 func (self *ENS) Register(name string) (*types.Transaction, error) {

vendor/github.com/ethereum/go-ethereum/core/asm/asm.go

@@ -109,9 +109,9 @@ func PrintDisassembled(code string) error {
 	it := NewInstructionIterator(script)
 	for it.Next() {
 		if it.Arg() != nil && 0 < len(it.Arg()) {
-			fmt.Printf("%06v: %v 0x%x\n", it.PC(), it.Op(), it.Arg())
+			fmt.Printf("%05x: %v 0x%x\n", it.PC(), it.Op(), it.Arg())
 		} else {
-			fmt.Printf("%06v: %v\n", it.PC(), it.Op())
+			fmt.Printf("%05x: %v\n", it.PC(), it.Op())
 		}
 	}
 	return it.Error()
@@ -124,9 +124,9 @@ func Disassemble(script []byte) ([]string, error) {
 	it := NewInstructionIterator(script)
 	for it.Next() {
 		if it.Arg() != nil && 0 < len(it.Arg()) {
-			instrs = append(instrs, fmt.Sprintf("%06v: %v 0x%x\n", it.PC(), it.Op(), it.Arg()))
+			instrs = append(instrs, fmt.Sprintf("%05x: %v 0x%x\n", it.PC(), it.Op(), it.Arg()))
 		} else {
-			instrs = append(instrs, fmt.Sprintf("%06v: %v\n", it.PC(), it.Op()))
+			instrs = append(instrs, fmt.Sprintf("%05x: %v\n", it.PC(), it.Op()))
 		}
 	}
 	if err := it.Error(); err != nil {

vendor/github.com/ethereum/go-ethereum/core/blockchain.go

@@ -55,6 +55,7 @@ var (
 const (
 	bodyCacheLimit      = 256
 	blockCacheLimit     = 256
+	receiptsCacheLimit  = 32
 	maxFutureBlocks     = 256
 	maxTimeFutureBlocks = 30
 	badBlockLimit       = 10
@@ -111,11 +112,12 @@ type BlockChain struct {
 	currentBlock     atomic.Value // Current head of the block chain
 	currentFastBlock atomic.Value // Current head of the fast-sync chain (may be above the block chain!)
 
-	stateCache   state.Database // State database to reuse between imports (contains state cache)
+	stateCache    state.Database // State database to reuse between imports (contains state cache)
-	bodyCache    *lru.Cache     // Cache for the most recent block bodies
+	bodyCache     *lru.Cache     // Cache for the most recent block bodies
-	bodyRLPCache *lru.Cache     // Cache for the most recent block bodies in RLP encoded format
+	bodyRLPCache  *lru.Cache     // Cache for the most recent block bodies in RLP encoded format
-	blockCache   *lru.Cache     // Cache for the most recent entire blocks
+	receiptsCache *lru.Cache     // Cache for the most recent receipts per block
-	futureBlocks *lru.Cache     // future blocks are blocks added for later processing
+	blockCache    *lru.Cache     // Cache for the most recent entire blocks
+	futureBlocks  *lru.Cache     // future blocks are blocks added for later processing
 
 	quit    chan struct{} // blockchain quit channel
 	running int32         // running must be called atomically
@@ -144,6 +146,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
 	}
 	bodyCache, _ := lru.New(bodyCacheLimit)
 	bodyRLPCache, _ := lru.New(bodyCacheLimit)
+	receiptsCache, _ := lru.New(receiptsCacheLimit)
 	blockCache, _ := lru.New(blockCacheLimit)
 	futureBlocks, _ := lru.New(maxFutureBlocks)
 	badBlocks, _ := lru.New(badBlockLimit)
@@ -158,6 +161,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
 		shouldPreserve: shouldPreserve,
 		bodyCache:      bodyCache,
 		bodyRLPCache:   bodyRLPCache,
+		receiptsCache:  receiptsCache,
 		blockCache:     blockCache,
 		futureBlocks:   futureBlocks,
 		engine:         engine,
@@ -280,6 +284,7 @@ func (bc *BlockChain) SetHead(head uint64) error {
 	// Clear out any stale content from the caches
 	bc.bodyCache.Purge()
 	bc.bodyRLPCache.Purge()
+	bc.receiptsCache.Purge()
 	bc.blockCache.Purge()
 	bc.futureBlocks.Purge()
 
@@ -603,11 +608,18 @@ func (bc *BlockChain) GetBlockByNumber(number uint64) *types.Block {
 
 // GetReceiptsByHash retrieves the receipts for all transactions in a given block.
 func (bc *BlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts {
+	if receipts, ok := bc.receiptsCache.Get(hash); ok {
+		return receipts.(types.Receipts)
+	}
+
 	number := rawdb.ReadHeaderNumber(bc.db, hash)
 	if number == nil {
 		return nil
 	}
-	return rawdb.ReadReceipts(bc.db, hash, *number)
+
+	receipts := rawdb.ReadReceipts(bc.db, hash, *number)
+	bc.receiptsCache.Add(hash, receipts)
+	return receipts
 }
 
 // GetBlocksFromHash returns the block corresponding to hash and up to n-1 ancestors.

vendor/github.com/ethereum/go-ethereum/core/chain_indexer.go

@@ -53,14 +53,14 @@ type ChainIndexerChain interface {
 	// CurrentHeader retrieves the latest locally known header.
 	CurrentHeader() *types.Header
 
-	// SubscribeChainEvent subscribes to new head header notifications.
+	// SubscribeChainHeadEvent subscribes to new head header notifications.
-	SubscribeChainEvent(ch chan<- ChainEvent) event.Subscription
+	SubscribeChainHeadEvent(ch chan<- ChainHeadEvent) event.Subscription
 }
 
 // ChainIndexer does a post-processing job for equally sized sections of the
 // canonical chain (like BlooomBits and CHT structures). A ChainIndexer is
 // connected to the blockchain through the event system by starting a
-// ChainEventLoop in a goroutine.
+// ChainHeadEventLoop in a goroutine.
 //
 // Further child ChainIndexers can be added which use the output of the parent
 // section indexer. These child indexers receive new head notifications only
@@ -142,8 +142,8 @@ func (c *ChainIndexer) AddCheckpoint(section uint64, shead common.Hash) {
 // cascading background processing. Children do not need to be started, they
 // are notified about new events by their parents.
 func (c *ChainIndexer) Start(chain ChainIndexerChain) {
-	events := make(chan ChainEvent, 10)
+	events := make(chan ChainHeadEvent, 10)
-	sub := chain.SubscribeChainEvent(events)
+	sub := chain.SubscribeChainHeadEvent(events)
 
 	go c.eventLoop(chain.CurrentHeader(), events, sub)
 }
@@ -190,7 +190,7 @@ func (c *ChainIndexer) Close() error {
 // eventLoop is a secondary - optional - event loop of the indexer which is only
 // started for the outermost indexer to push chain head events into a processing
 // queue.
-func (c *ChainIndexer) eventLoop(currentHeader *types.Header, events chan ChainEvent, sub event.Subscription) {
+func (c *ChainIndexer) eventLoop(currentHeader *types.Header, events chan ChainHeadEvent, sub event.Subscription) {
 	// Mark the chain indexer as active, requiring an additional teardown
 	atomic.StoreUint32(&c.active, 1)
 
@@ -219,13 +219,13 @@ func (c *ChainIndexer) eventLoop(currentHeader *types.Header, events chan ChainE
 			}
 			header := ev.Block.Header()
 			if header.ParentHash != prevHash {
-				// Reorg to the common ancestor (might not exist in light sync mode, skip reorg then)
+				// Reorg to the common ancestor if needed (might not exist in light sync mode, skip reorg then)
 				// TODO(karalabe, zsfelfoldi): This seems a bit brittle, can we detect this case explicitly?
 
-				// TODO(karalabe): This operation is expensive and might block, causing the event system to
+				if rawdb.ReadCanonicalHash(c.chainDb, prevHeader.Number.Uint64()) != prevHash {
-				// potentially also lock up. We need to do with on a different thread somehow.
+					if h := rawdb.FindCommonAncestor(c.chainDb, prevHeader, header); h != nil {
-				if h := rawdb.FindCommonAncestor(c.chainDb, prevHeader, header); h != nil {
+						c.newHead(h.Number.Uint64(), true)
-					c.newHead(h.Number.Uint64(), true)
+					}
 				}
 			}
 			c.newHead(header.Number.Uint64(), false)

vendor/github.com/ethereum/go-ethereum/core/types/log.go

@@ -47,7 +47,7 @@ type Log struct {
 	TxIndex uint `json:"transactionIndex" gencodec:"required"`
 	// hash of the block in which the transaction was included
 	BlockHash common.Hash `json:"blockHash"`
-	// index of the log in the receipt
+	// index of the log in the block
 	Index uint `json:"logIndex" gencodec:"required"`
 
 	// The Removed field is true if this log was reverted due to a chain reorganisation.

vendor/github.com/ethereum/go-ethereum/core/types/transaction.go

@@ -153,16 +153,21 @@ func (tx *Transaction) UnmarshalJSON(input []byte) error {
 	if err := dec.UnmarshalJSON(input); err != nil {
 		return err
 	}
-	var V byte
+
-	if isProtectedV(dec.V) {
+	withSignature := dec.V.Sign() != 0 || dec.R.Sign() != 0 || dec.S.Sign() != 0
-		chainID := deriveChainId(dec.V).Uint64()
+	if withSignature {
-		V = byte(dec.V.Uint64() - 35 - 2*chainID)
+		var V byte
-	} else {
+		if isProtectedV(dec.V) {
-		V = byte(dec.V.Uint64() - 27)
+			chainID := deriveChainId(dec.V).Uint64()
-	}
+			V = byte(dec.V.Uint64() - 35 - 2*chainID)
-	if !crypto.ValidateSignatureValues(V, dec.R, dec.S, false) {
+		} else {
-		return ErrInvalidSig
+			V = byte(dec.V.Uint64() - 27)
+		}
+		if !crypto.ValidateSignatureValues(V, dec.R, dec.S, false) {
+			return ErrInvalidSig
+		}
 	}
+
 	*tx = Transaction{data: dec}
 	return nil
 }

vendor/github.com/ethereum/go-ethereum/core/types/transaction_signing.go

@@ -227,13 +227,13 @@ func recoverPlain(sighash common.Hash, R, S, Vb *big.Int, homestead bool) (commo
 	if !crypto.ValidateSignatureValues(V, R, S, homestead) {
 		return common.Address{}, ErrInvalidSig
 	}
-	// encode the snature in uncompressed format
+	// encode the signature in uncompressed format
 	r, s := R.Bytes(), S.Bytes()
 	sig := make([]byte, 65)
 	copy(sig[32-len(r):32], r)
 	copy(sig[64-len(s):64], s)
 	sig[64] = V
-	// recover the public key from the snature
+	// recover the public key from the signature
 	pub, err := crypto.Ecrecover(sighash[:], sig)
 	if err != nil {
 		return common.Address{}, err

vendor/github.com/ethereum/go-ethereum/core/vm/analysis.go

@@ -16,34 +16,6 @@
 
 package vm
 
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/common"
-)
-
-// destinations stores one map per contract (keyed by hash of code).
-// The maps contain an entry for each location of a JUMPDEST
-// instruction.
-type destinations map[common.Hash]bitvec
-
-// has checks whether code has a JUMPDEST at dest.
-func (d destinations) has(codehash common.Hash, code []byte, dest *big.Int) bool {
-	// PC cannot go beyond len(code) and certainly can't be bigger than 63bits.
-	// Don't bother checking for JUMPDEST in that case.
-	udest := dest.Uint64()
-	if dest.BitLen() >= 63 || udest >= uint64(len(code)) {
-		return false
-	}
-
-	m, analysed := d[codehash]
-	if !analysed {
-		m = codeBitmap(code)
-		d[codehash] = m
-	}
-	return OpCode(code[udest]) == JUMPDEST && m.codeSegment(udest)
-}
-
 // bitvec is a bit vector which maps bytes in a program.
 // An unset bit means the byte is an opcode, a set bit means
 // it's data (i.e. argument of PUSHxx).

vendor/github.com/ethereum/go-ethereum/core/vm/contract.go

@@ -49,7 +49,8 @@ type Contract struct {
 	caller        ContractRef
 	self          ContractRef
 
-	jumpdests destinations // result of JUMPDEST analysis.
+	jumpdests map[common.Hash]bitvec // Aggregated result of JUMPDEST analysis.
+	analysis  bitvec                 // Locally cached result of JUMPDEST analysis
 
 	Code     []byte
 	CodeHash common.Hash
@@ -58,21 +59,17 @@ type Contract struct {
 
 	Gas   uint64
 	value *big.Int
-
-	Args []byte
-
-	DelegateCall bool
 }
 
 // NewContract returns a new contract environment for the execution of EVM.
 func NewContract(caller ContractRef, object ContractRef, value *big.Int, gas uint64) *Contract {
-	c := &Contract{CallerAddress: caller.Address(), caller: caller, self: object, Args: nil}
+	c := &Contract{CallerAddress: caller.Address(), caller: caller, self: object}
 
 	if parent, ok := caller.(*Contract); ok {
 		// Reuse JUMPDEST analysis from parent context if available.
 		c.jumpdests = parent.jumpdests
 	} else {
-		c.jumpdests = make(destinations)
+		c.jumpdests = make(map[common.Hash]bitvec)
 	}
 
 	// Gas should be a pointer so it can safely be reduced through the run
@@ -84,10 +81,42 @@ func NewContract(caller ContractRef, object ContractRef, value *big.Int, gas uin
 	return c
 }
 
+func (c *Contract) validJumpdest(dest *big.Int) bool {
+	udest := dest.Uint64()
+	// PC cannot go beyond len(code) and certainly can't be bigger than 63bits.
+	// Don't bother checking for JUMPDEST in that case.
+	if dest.BitLen() >= 63 || udest >= uint64(len(c.Code)) {
+		return false
+	}
+	// Only JUMPDESTs allowed for destinations
+	if OpCode(c.Code[udest]) != JUMPDEST {
+		return false
+	}
+	// Do we have a contract hash already?
+	if c.CodeHash != (common.Hash{}) {
+		// Does parent context have the analysis?
+		analysis, exist := c.jumpdests[c.CodeHash]
+		if !exist {
+			// Do the analysis and save in parent context
+			// We do not need to store it in c.analysis
+			analysis = codeBitmap(c.Code)
+			c.jumpdests[c.CodeHash] = analysis
+		}
+		return analysis.codeSegment(udest)
+	}
+	// We don't have the code hash, most likely a piece of initcode not already
+	// in state trie. In that case, we do an analysis, and save it locally, so
+	// we don't have to recalculate it for every JUMP instruction in the execution
+	// However, we don't save it within the parent context
+	if c.analysis == nil {
+		c.analysis = codeBitmap(c.Code)
+	}
+	return c.analysis.codeSegment(udest)
+}
+
 // AsDelegate sets the contract to be a delegate call and returns the current
 // contract (for chaining calls)
 func (c *Contract) AsDelegate() *Contract {
-	c.DelegateCall = true
 	// NOTE: caller must, at all times be a contract. It should never happen
 	// that caller is something other than a Contract.
 	parent := c.caller.(*Contract)
@@ -138,12 +167,6 @@ func (c *Contract) Value() *big.Int {
 	return c.value
 }
 
-// SetCode sets the code to the contract
-func (c *Contract) SetCode(hash common.Hash, code []byte) {
-	c.Code = code
-	c.CodeHash = hash
-}
-
 // SetCallCode sets the code of the contract and address of the backing data
 // object
 func (c *Contract) SetCallCode(addr *common.Address, hash common.Hash, code []byte) {
@@ -151,3 +174,11 @@ func (c *Contract) SetCallCode(addr *common.Address, hash common.Hash, code []by
 	c.CodeHash = hash
 	c.CodeAddr = addr
 }
+
+// SetCodeOptionalHash can be used to provide code, but it's optional to provide hash.
+// In case hash is not provided, the jumpdest analysis will not be saved to the parent context
+func (c *Contract) SetCodeOptionalHash(addr *common.Address, codeAndHash *codeAndHash) {
+	c.Code = codeAndHash.code
+	c.CodeHash = codeAndHash.hash
+	c.CodeAddr = addr
+}

vendor/github.com/ethereum/go-ethereum/core/vm/evm.go

@@ -212,12 +212,12 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
 		evm.StateDB.CreateAccount(addr)
 	}
 	evm.Transfer(evm.StateDB, caller.Address(), to.Address(), value)
-
 	// Initialise a new contract and set the code that is to be used by the EVM.
 	// The contract is a scoped environment for this execution context only.
 	contract := NewContract(caller, to, value, gas)
 	contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))
 
+	// Even if the account has no code, we need to continue because it might be a precompile
 	start := time.Now()
 
 	// Capture the tracer start/end events in debug mode
@@ -352,8 +352,20 @@ func (evm *EVM) StaticCall(caller ContractRef, addr common.Address, input []byte
 	return ret, contract.Gas, err
 }
 
+type codeAndHash struct {
+	code []byte
+	hash common.Hash
+}
+
+func (c *codeAndHash) Hash() common.Hash {
+	if c.hash == (common.Hash{}) {
+		c.hash = crypto.Keccak256Hash(c.code)
+	}
+	return c.hash
+}
+
 // create creates a new contract using code as deployment code.
-func (evm *EVM) create(caller ContractRef, code []byte, gas uint64, value *big.Int, address common.Address) ([]byte, common.Address, uint64, error) {
+func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64, value *big.Int, address common.Address) ([]byte, common.Address, uint64, error) {
 	// Depth check execution. Fail if we're trying to execute above the
 	// limit.
 	if evm.depth > int(params.CallCreateDepth) {
@@ -382,14 +394,14 @@ func (evm *EVM) create(caller ContractRef, code []byte, gas uint64, value *big.I
 	// EVM. The contract is a scoped environment for this execution context
 	// only.
 	contract := NewContract(caller, AccountRef(address), value, gas)
-	contract.SetCallCode(&address, crypto.Keccak256Hash(code), code)
+	contract.SetCodeOptionalHash(&address, codeAndHash)
 
 	if evm.vmConfig.NoRecursion && evm.depth > 0 {
 		return nil, address, gas, nil
 	}
 
 	if evm.vmConfig.Debug && evm.depth == 0 {
-		evm.vmConfig.Tracer.CaptureStart(caller.Address(), address, true, code, gas, value)
+		evm.vmConfig.Tracer.CaptureStart(caller.Address(), address, true, codeAndHash.code, gas, value)
 	}
 	start := time.Now()
 
@@ -433,7 +445,7 @@ func (evm *EVM) create(caller ContractRef, code []byte, gas uint64, value *big.I
 // Create creates a new contract using code as deployment code.
 func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.Int) (ret []byte, contractAddr common.Address, leftOverGas uint64, err error) {
 	contractAddr = crypto.CreateAddress(caller.Address(), evm.StateDB.GetNonce(caller.Address()))
-	return evm.create(caller, code, gas, value, contractAddr)
+	return evm.create(caller, &codeAndHash{code: code}, gas, value, contractAddr)
 }
 
 // Create2 creates a new contract using code as deployment code.
@@ -441,8 +453,9 @@ func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.I
 // The different between Create2 with Create is Create2 uses sha3(0xff ++ msg.sender ++ salt ++ sha3(init_code))[12:]
 // instead of the usual sender-and-nonce-hash as the address where the contract is initialized at.
 func (evm *EVM) Create2(caller ContractRef, code []byte, gas uint64, endowment *big.Int, salt *big.Int) (ret []byte, contractAddr common.Address, leftOverGas uint64, err error) {
-	contractAddr = crypto.CreateAddress2(caller.Address(), common.BigToHash(salt), code)
+	codeAndHash := &codeAndHash{code: code}
-	return evm.create(caller, code, gas, endowment, contractAddr)
+	contractAddr = crypto.CreateAddress2(caller.Address(), common.BigToHash(salt), codeAndHash.Hash().Bytes())
+	return evm.create(caller, codeAndHash, gas, endowment, contractAddr)
 }
 
 // ChainConfig returns the environment's chain configuration

vendor/github.com/ethereum/go-ethereum/core/vm/gas_table.go

@@ -347,6 +347,17 @@ func gasCreate2(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack,
 	if gas, overflow = math.SafeAdd(gas, params.Create2Gas); overflow {
 		return 0, errGasUintOverflow
 	}
+	wordGas, overflow := bigUint64(stack.Back(2))
+	if overflow {
+		return 0, errGasUintOverflow
+	}
+	if wordGas, overflow = math.SafeMul(toWordSize(wordGas), params.Sha3WordGas); overflow {
+		return 0, errGasUintOverflow
+	}
+	if gas, overflow = math.SafeAdd(gas, wordGas); overflow {
+		return 0, errGasUintOverflow
+	}
+
 	return gas, nil
 }
 

vendor/github.com/ethereum/go-ethereum/core/vm/instructions.go

@@ -24,7 +24,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/crypto/sha3"
 	"github.com/ethereum/go-ethereum/params"
 )
 
@@ -373,13 +373,20 @@ func opSAR(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *
 func opSha3(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	offset, size := stack.pop(), stack.pop()
 	data := memory.Get(offset.Int64(), size.Int64())
-	hash := crypto.Keccak256(data)
-	evm := interpreter.evm
 
-	if evm.vmConfig.EnablePreimageRecording {
+	if interpreter.hasher == nil {
-		evm.StateDB.AddPreimage(common.BytesToHash(hash), data)
+		interpreter.hasher = sha3.NewKeccak256().(keccakState)
+	} else {
+		interpreter.hasher.Reset()
 	}
-	stack.push(interpreter.intPool.get().SetBytes(hash))
+	interpreter.hasher.Write(data)
+	interpreter.hasher.Read(interpreter.hasherBuf[:])
+
+	evm := interpreter.evm
+	if evm.vmConfig.EnablePreimageRecording {
+		evm.StateDB.AddPreimage(interpreter.hasherBuf, data)
+	}
+	stack.push(interpreter.intPool.get().SetBytes(interpreter.hasherBuf[:]))
 
 	interpreter.intPool.put(offset, size)
 	return nil, nil
@@ -620,7 +627,7 @@ func opSstore(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memor
 
 func opJump(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	pos := stack.pop()
-	if !contract.jumpdests.has(contract.CodeHash, contract.Code, pos) {
+	if !contract.validJumpdest(pos) {
 		nop := contract.GetOp(pos.Uint64())
 		return nil, fmt.Errorf("invalid jump destination (%v) %v", nop, pos)
 	}
@@ -633,7 +640,7 @@ func opJump(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory
 func opJumpi(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
 	pos, cond := stack.pop(), stack.pop()
 	if cond.Sign() != 0 {
-		if !contract.jumpdests.has(contract.CodeHash, contract.Code, pos) {
+		if !contract.validJumpdest(pos) {
 			nop := contract.GetOp(pos.Uint64())
 			return nil, fmt.Errorf("invalid jump destination (%v) %v", nop, pos)
 		}
@@ -727,7 +734,7 @@ func opCreate2(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memo
 }
 
 func opCall(pc *uint64, interpreter *EVMInterpreter, contract *Contract, memory *Memory, stack *Stack) ([]byte, error) {
-	// Pop gas. The actual gas in in interpreter.evm.callGasTemp.
+	// Pop gas. The actual gas in interpreter.evm.callGasTemp.
 	interpreter.intPool.put(stack.pop())
 	gas := interpreter.evm.callGasTemp
 	// Pop other call parameters.

vendor/github.com/ethereum/go-ethereum/core/vm/interpreter.go

@@ -18,8 +18,10 @@ package vm
 
 import (
 	"fmt"
+	"hash"
 	"sync/atomic"
 
+	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/params"
 )
@@ -68,12 +70,24 @@ type Interpreter interface {
 	CanRun([]byte) bool
 }
 
+// keccakState wraps sha3.state. In addition to the usual hash methods, it also supports
+// Read to get a variable amount of data from the hash state. Read is faster than Sum
+// because it doesn't copy the internal state, but also modifies the internal state.
+type keccakState interface {
+	hash.Hash
+	Read([]byte) (int, error)
+}
+
 // EVMInterpreter represents an EVM interpreter
 type EVMInterpreter struct {
 	evm      *EVM
 	cfg      Config
 	gasTable params.GasTable
-	intPool  *intPool
+
+	intPool *intPool
+
+	hasher    keccakState // Keccak256 hasher instance shared across opcodes
+	hasherBuf common.Hash // Keccak256 hasher result array shared aross opcodes
 
 	readOnly   bool   // Whether to throw on stateful modifications
 	returnData []byte // Last CALL's return data for subsequent reuse

vendor/github.com/ethereum/go-ethereum/core/vm/memory.go

@@ -29,7 +29,7 @@ type Memory struct {
 	lastGasCost uint64
 }
 
-// NewMemory returns a new memory memory model.
+// NewMemory returns a new memory model.
 func NewMemory() *Memory {
 	return &Memory{}
 }

vendor/github.com/ethereum/go-ethereum/crypto/crypto.go

@@ -77,9 +77,9 @@ func CreateAddress(b common.Address, nonce uint64) common.Address {
 }
 
 // CreateAddress2 creates an ethereum address given the address bytes, initial
-// contract code and a salt.
+// contract code hash and a salt.
-func CreateAddress2(b common.Address, salt [32]byte, code []byte) common.Address {
+func CreateAddress2(b common.Address, salt [32]byte, inithash []byte) common.Address {
-	return common.BytesToAddress(Keccak256([]byte{0xff}, b.Bytes(), salt[:], Keccak256(code))[12:])
+	return common.BytesToAddress(Keccak256([]byte{0xff}, b.Bytes(), salt[:], inithash)[12:])
 }
 
 // ToECDSA creates a private key with the given D value.

vendor/github.com/ethereum/go-ethereum/crypto/secp256k1/libsecp256k1/src/num.h

@@ -54,7 +54,7 @@ static void secp256k1_num_mul(secp256k1_num *r, const secp256k1_num *a, const se
     even if r was negative. */
 static void secp256k1_num_mod(secp256k1_num *r, const secp256k1_num *m);
 
-/** Right-shift the passed number by bits bits. */
+/** Right-shift the passed number by bits. */
 static void secp256k1_num_shift(secp256k1_num *r, int bits);
 
 /** Check whether a number is zero. */

vendor/github.com/ethereum/go-ethereum/eth/api.go

@@ -67,6 +67,15 @@ func (api *PublicEthereumAPI) Hashrate() hexutil.Uint64 {
 	return hexutil.Uint64(api.e.Miner().HashRate())
 }
 
+// ChainId is the EIP-155 replay-protection chain id for the current ethereum chain config.
+func (api *PublicEthereumAPI) ChainId() hexutil.Uint64 {
+	chainID := new(big.Int)
+	if config := api.e.chainConfig; config.IsEIP155(api.e.blockchain.CurrentBlock().Number()) {
+		chainID = config.ChainID
+	}
+	return (hexutil.Uint64)(chainID.Uint64())
+}
+
 // PublicMinerAPI provides an API to control the miner.
 // It offers only methods that operate on data that pose no security risk when it is publicly accessible.
 type PublicMinerAPI struct {

vendor/github.com/ethereum/go-ethereum/eth/api_backend.go

@@ -25,7 +25,6 @@ import (
 	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/bloombits"
-	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
@@ -107,18 +106,11 @@ func (b *EthAPIBackend) GetBlock(ctx context.Context, hash common.Hash) (*types.
 }
 
 func (b *EthAPIBackend) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
-	if number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash); number != nil {
+	return b.eth.blockchain.GetReceiptsByHash(hash), nil
-		return rawdb.ReadReceipts(b.eth.chainDb, hash, *number), nil
-	}
-	return nil, nil
 }
 
 func (b *EthAPIBackend) GetLogs(ctx context.Context, hash common.Hash) ([][]*types.Log, error) {
-	number := rawdb.ReadHeaderNumber(b.eth.chainDb, hash)
+	receipts := b.eth.blockchain.GetReceiptsByHash(hash)
-	if number == nil {
-		return nil, nil
-	}
-	receipts := rawdb.ReadReceipts(b.eth.chainDb, hash, *number)
 	if receipts == nil {
 		return nil, nil
 	}

vendor/github.com/ethereum/go-ethereum/eth/api_tracer.go

@@ -391,6 +391,15 @@ func (api *PrivateDebugAPI) TraceBlockFromFile(ctx context.Context, file string,
 	return api.TraceBlock(ctx, blob, config)
 }
 
+// TraceBadBlock returns the structured logs created during the execution of a block
+// within the blockchain 'badblocks' cache
+func (api *PrivateDebugAPI) TraceBadBlock(ctx context.Context, index int, config *TraceConfig) ([]*txTraceResult, error) {
+	if blocks := api.eth.blockchain.BadBlocks(); index < len(blocks) {
+		return api.traceBlock(ctx, blocks[index], config)
+	}
+	return nil, fmt.Errorf("index out of range")
+}
+
 // traceBlock configures a new tracer according to the provided configuration, and
 // executes all the transactions contained within. The return value will be one item
 // per transaction, dependent on the requestd tracer.

vendor/github.com/ethereum/go-ethereum/eth/downloader/downloader.go

@@ -60,6 +60,9 @@ var (
 	maxHeadersProcess = 2048      // Number of header download results to import at once into the chain
 	maxResultsProcess = 2048      // Number of content download results to import at once into the chain
 
+	reorgProtThreshold   = 48 // Threshold number of recent blocks to disable mini reorg protection
+	reorgProtHeaderDelay = 2  // Number of headers to delay delivering to cover mini reorgs
+
 	fsHeaderCheckFrequency = 100             // Verification frequency of the downloaded headers during fast sync
 	fsHeaderSafetyNet      = 2048            // Number of headers to discard in case a chain violation is detected
 	fsHeaderForceVerify    = 24              // Number of headers to verify before and after the pivot to accept it
@@ -674,8 +677,10 @@ func (d *Downloader) findAncestor(p *peerConnection, height uint64) (uint64, err
 					continue
 				}
 				// Otherwise check if we already know the header or not
-				if (d.mode == FullSync && d.blockchain.HasBlock(headers[i].Hash(), headers[i].Number.Uint64())) || (d.mode != FullSync && d.lightchain.HasHeader(headers[i].Hash(), headers[i].Number.Uint64())) {
+				h := headers[i].Hash()
-					number, hash = headers[i].Number.Uint64(), headers[i].Hash()
+				n := headers[i].Number.Uint64()
+				if (d.mode == FullSync && d.blockchain.HasBlock(h, n)) || (d.mode != FullSync && d.lightchain.HasHeader(h, n)) {
+					number, hash = n, h
 
 					// If every header is known, even future ones, the peer straight out lied about its head
 					if number > height && i == limit-1 {
@@ -739,11 +744,13 @@ func (d *Downloader) findAncestor(p *peerConnection, height uint64) (uint64, err
 				arrived = true
 
 				// Modify the search interval based on the response
-				if (d.mode == FullSync && !d.blockchain.HasBlock(headers[0].Hash(), headers[0].Number.Uint64())) || (d.mode != FullSync && !d.lightchain.HasHeader(headers[0].Hash(), headers[0].Number.Uint64())) {
+				h := headers[0].Hash()
+				n := headers[0].Number.Uint64()
+				if (d.mode == FullSync && !d.blockchain.HasBlock(h, n)) || (d.mode != FullSync && !d.lightchain.HasHeader(h, n)) {
 					end = check
 					break
 				}
-				header := d.lightchain.GetHeaderByHash(headers[0].Hash()) // Independent of sync mode, header surely exists
+				header := d.lightchain.GetHeaderByHash(h) // Independent of sync mode, header surely exists
 				if header.Number.Uint64() != check {
 					p.log.Debug("Received non requested header", "number", header.Number, "hash", header.Hash(), "request", check)
 					return 0, errBadPeer
@@ -859,6 +866,30 @@ func (d *Downloader) fetchHeaders(p *peerConnection, from uint64, pivot uint64)
 				}
 				headers = filled[proced:]
 				from += uint64(proced)
+			} else {
+				// If we're closing in on the chain head, but haven't yet reached it, delay
+				// the last few headers so mini reorgs on the head don't cause invalid hash
+				// chain errors.
+				if n := len(headers); n > 0 {
+					// Retrieve the current head we're at
+					head := uint64(0)
+					if d.mode == LightSync {
+						head = d.lightchain.CurrentHeader().Number.Uint64()
+					} else {
+						head = d.blockchain.CurrentFastBlock().NumberU64()
+						if full := d.blockchain.CurrentBlock().NumberU64(); head < full {
+							head = full
+						}
+					}
+					// If the head is way older than this batch, delay the last few headers
+					if head+uint64(reorgProtThreshold) < headers[n-1].Number.Uint64() {
+						delay := reorgProtHeaderDelay
+						if delay > n {
+							delay = n
+						}
+						headers = headers[:n-delay]
+					}
+				}
 			}
 			// Insert all the new headers and fetch the next batch
 			if len(headers) > 0 {
@@ -869,8 +900,18 @@ func (d *Downloader) fetchHeaders(p *peerConnection, from uint64, pivot uint64)
 					return errCancelHeaderFetch
 				}
 				from += uint64(len(headers))
+				getHeaders(from)
+			} else {
+				// No headers delivered, or all of them being delayed, sleep a bit and retry
+				p.log.Trace("All headers delayed, waiting")
+				select {
+				case <-time.After(fsHeaderContCheck):
+					getHeaders(from)
+					continue
+				case <-d.cancelCh:
+					return errCancelHeaderFetch
+				}
 			}
-			getHeaders(from)
 
 		case <-timeout.C:
 			if d.dropPeer == nil {

vendor/github.com/ethereum/go-ethereum/eth/gen_config.go

@@ -53,6 +53,8 @@ func (c Config) MarshalTOML() (interface{}, error) {
 	enc.NoPruning = c.NoPruning
 	enc.LightServ = c.LightServ
 	enc.LightPeers = c.LightPeers
+	enc.OnlyAnnounce = c.OnlyAnnounce
+	enc.ULC = c.ULC
 	enc.SkipBcVersionCheck = c.SkipBcVersionCheck
 	enc.DatabaseHandles = c.DatabaseHandles
 	enc.DatabaseCache = c.DatabaseCache

vendor/github.com/ethereum/go-ethereum/eth/handler.go

@@ -37,7 +37,7 @@ import (
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rlp"
 )
@@ -49,6 +49,9 @@ const (
 	// txChanSize is the size of channel listening to NewTxsEvent.
 	// The number is referenced from the size of tx pool.
 	txChanSize = 4096
+
+	// minimim number of peers to broadcast new blocks to
+	minBroadcastPeers = 4
 )
 
 var (
@@ -147,7 +150,7 @@ func NewProtocolManager(config *params.ChainConfig, mode downloader.SyncMode, ne
 			NodeInfo: func() interface{} {
 				return manager.NodeInfo()
 			},
-			PeerInfo: func(id discover.NodeID) interface{} {
+			PeerInfo: func(id enode.ID) interface{} {
 				if p := manager.peers.Peer(fmt.Sprintf("%x", id[:8])); p != nil {
 					return p.Info()
 				}
@@ -708,7 +711,14 @@ func (pm *ProtocolManager) BroadcastBlock(block *types.Block, propagate bool) {
 			return
 		}
 		// Send the block to a subset of our peers
-		transfer := peers[:int(math.Sqrt(float64(len(peers))))]
+		transferLen := int(math.Sqrt(float64(len(peers))))
+		if transferLen < minBroadcastPeers {
+			transferLen = minBroadcastPeers
+		}
+		if transferLen > len(peers) {
+			transferLen = len(peers)
+		}
+		transfer := peers[:transferLen]
 		for _, peer := range transfer {
 			peer.AsyncSendNewBlock(block, td)
 		}

vendor/github.com/ethereum/go-ethereum/eth/protocol.go

@@ -37,7 +37,7 @@ const (
 // ProtocolName is the official short name of the protocol used during capability negotiation.
 var ProtocolName = "eth"
 
-// ProtocolVersions are the upported versions of the eth protocol (first is primary).
+// ProtocolVersions are the supported versions of the eth protocol (first is primary).
 var ProtocolVersions = []uint{eth63, eth62}
 
 // ProtocolLengths are the number of implemented message corresponding to different protocol versions.

vendor/github.com/ethereum/go-ethereum/eth/sync.go

@@ -25,7 +25,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/eth/downloader"
 	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 )
 
 const (
@@ -64,7 +64,7 @@ func (pm *ProtocolManager) syncTransactions(p *peer) {
 // the transactions in small packs to one peer at a time.
 func (pm *ProtocolManager) txsyncLoop() {
 	var (
-		pending = make(map[discover.NodeID]*txsync)
+		pending = make(map[enode.ID]*txsync)
 		sending = false               // whether a send is active
 		pack    = new(txsync)         // the pack that is being sent
 		done    = make(chan error, 1) // result of the send

vendor/github.com/ethereum/go-ethereum/internal/debug/flags.go

@@ -25,11 +25,11 @@ import (
 	"runtime"
 
 	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/log/term"
 	"github.com/ethereum/go-ethereum/metrics"
 	"github.com/ethereum/go-ethereum/metrics/exp"
 	"github.com/fjl/memsize/memsizeui"
 	colorable "github.com/mattn/go-colorable"
+	"github.com/mattn/go-isatty"
 	"gopkg.in/urfave/cli.v1"
 )
 
@@ -101,7 +101,7 @@ var (
 )
 
 func init() {
-	usecolor := term.IsTty(os.Stderr.Fd()) && os.Getenv("TERM") != "dumb"
+	usecolor := (isatty.IsTerminal(os.Stderr.Fd()) || isatty.IsCygwinTerminal(os.Stderr.Fd())) && os.Getenv("TERM") != "dumb"
 	output := io.Writer(os.Stderr)
 	if usecolor {
 		output = colorable.NewColorableStderr()

vendor/github.com/ethereum/go-ethereum/internal/ethapi/api.go

@@ -457,7 +457,7 @@ func (s *PrivateAccountAPI) Sign(ctx context.Context, data hexutil.Bytes, addr c
 // addr = ecrecover(hash, signature)
 //
 // Note, the signature must conform to the secp256k1 curve R, S and V values, where
-// the V value must be be 27 or 28 for legacy reasons.
+// the V value must be 27 or 28 for legacy reasons.
 //
 // https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_ecRecover
 func (s *PrivateAccountAPI) EcRecover(ctx context.Context, data, sig hexutil.Bytes) (common.Address, error) {

vendor/github.com/ethereum/go-ethereum/internal/jsre/deps/web3.js

@@ -1021,7 +1021,7 @@ var formatOutputInt = function (param) {
     var value = param.staticPart() || "0";
 
     // check if it's negative number
-    // it it is, return two's complement
+    // it is, return two's complement
     if (signedIsNegative(value)) {
         return new BigNumber(value, 16).minus(new BigNumber('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16)).minus(1);
     }
@@ -2250,7 +2250,7 @@ var isAddress = function (address) {
         // check if it has the basic requirements of an address
         return false;
     } else if (/^(0x)?[0-9a-f]{40}$/.test(address) || /^(0x)?[0-9A-F]{40}$/.test(address)) {
-        // If it's all small caps or all all caps, return true
+        // If it's all small caps or all caps, return true
         return true;
     } else {
         // Otherwise check each case

vendor/github.com/ethereum/go-ethereum/internal/web3ext/web3ext.go

@@ -378,6 +378,12 @@ web3._extend({
 			params: 2,
 			inputFormatter: [null, null]
 		}),
+		new web3._extend.Method({
+			name: 'traceBadBlock',
+			call: 'debug_traceBadBlock',
+			params: 1,
+			inputFormatter: [null]
+		}),
 		new web3._extend.Method({
 			name: 'traceBlockByNumber',
 			call: 'debug_traceBlockByNumber',
@@ -433,6 +439,11 @@ const Eth_JS = `
 web3._extend({
 	property: 'eth',
 	methods: [
+		new web3._extend.Method({
+			name: 'chainId',
+			call: 'eth_chainId',
+			params: 0
+		}),
 		new web3._extend.Method({
 			name: 'sign',
 			call: 'eth_sign',

vendor/github.com/ethereum/go-ethereum/les/backend.go

@@ -20,6 +20,7 @@ package les
 import (
 	"fmt"
 	"sync"
+	"time"
 
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/common"
@@ -161,6 +162,7 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
 	}
 
 	if leth.protocolManager.isULCEnabled() {
+		log.Warn("Ultra light client is enabled", "trustedNodes", len(leth.protocolManager.ulc.trustedKeys), "minTrustedFraction", leth.protocolManager.ulc.minTrustedFraction)
 		leth.blockchain.DisableCheckFreq()
 	}
 	leth.ApiBackend = &LesApiBackend{leth, nil}
@@ -279,6 +281,7 @@ func (s *LightEthereum) Stop() error {
 
 	s.eventMux.Stop()
 
+	time.Sleep(time.Millisecond * 200)
 	s.chainDb.Close()
 	close(s.shutdownChan)
 

vendor/github.com/ethereum/go-ethereum/les/commons.go

@@ -26,7 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/light"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/params"
 )
 
@@ -63,7 +63,7 @@ func (c *lesCommons) makeProtocols(versions []uint) []p2p.Protocol {
 			Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
 				return c.protocolManager.runPeer(version, p, rw)
 			},
-			PeerInfo: func(id discover.NodeID) interface{} {
+			PeerInfo: func(id enode.ID) interface{} {
 				if p := c.protocolManager.peers.Peer(fmt.Sprintf("%x", id[:8])); p != nil {
 					return p.Info()
 				}

vendor/github.com/ethereum/go-ethereum/les/fetcher.go

@@ -32,8 +32,9 @@ import (
 )
 
 const (
-	blockDelayTimeout = time.Second * 10 // timeout for a peer to announce a head that has already been confirmed by others
+	blockDelayTimeout    = time.Second * 10 // timeout for a peer to announce a head that has already been confirmed by others
-	maxNodeCount      = 20               // maximum number of fetcherTreeNode entries remembered for each peer
+	maxNodeCount         = 20               // maximum number of fetcherTreeNode entries remembered for each peer
+	serverStateAvailable = 100              // number of recent blocks where state availability is assumed
 )
 
 // lightFetcher implements retrieval of newly announced headers. It also provides a peerHasBlock function for the
@@ -155,6 +156,7 @@ func (f *lightFetcher) syncLoop() {
 			if !f.syncing && !(newAnnounce && s) {
 				rq, reqID = f.nextRequest()
 			}
+
 			syncing := f.syncing
 			f.lock.Unlock()
 
@@ -217,7 +219,7 @@ func (f *lightFetcher) syncLoop() {
 			res, h, td := f.checkSyncedHeaders(p)
 			f.syncing = false
 			if res {
-				f.newHeaders(h, []*big.Int{td})
+				f.newHeaders([]*types.Header{h}, []*big.Int{td})
 			}
 			f.lock.Unlock()
 		}
@@ -227,8 +229,8 @@ func (f *lightFetcher) syncLoop() {
 // registerPeer adds a new peer to the fetcher's peer set
 func (f *lightFetcher) registerPeer(p *peer) {
 	p.lock.Lock()
-	p.hasBlock = func(hash common.Hash, number uint64) bool {
+	p.hasBlock = func(hash common.Hash, number uint64, hasState bool) bool {
-		return f.peerHasBlock(p, hash, number)
+		return f.peerHasBlock(p, hash, number, hasState)
 	}
 	p.lock.Unlock()
 
@@ -358,21 +360,27 @@ func (f *lightFetcher) announce(p *peer, head *announceData) {
 
 // peerHasBlock returns true if we can assume the peer knows the given block
 // based on its announcements
-func (f *lightFetcher) peerHasBlock(p *peer, hash common.Hash, number uint64) bool {
+func (f *lightFetcher) peerHasBlock(p *peer, hash common.Hash, number uint64, hasState bool) bool {
 	f.lock.Lock()
 	defer f.lock.Unlock()
 
+	fp := f.peers[p]
+	if fp == nil || fp.root == nil {
+		return false
+	}
+
+	if hasState {
+		if fp.lastAnnounced == nil || fp.lastAnnounced.number > number+serverStateAvailable {
+			return false
+		}
+	}
+
 	if f.syncing {
 		// always return true when syncing
 		// false positives are acceptable, a more sophisticated condition can be implemented later
 		return true
 	}
 
-	fp := f.peers[p]
-	if fp == nil || fp.root == nil {
-		return false
-	}
-
 	if number >= fp.root.number {
 		// it is recent enough that if it is known, is should be in the peer's block tree
 		return fp.nodeByHash[hash] != nil
@@ -450,7 +458,7 @@ func (f *lightFetcher) findBestValues() (bestHash common.Hash, bestAmount uint64
 
 			//if ulc mode is disabled, isTrustedHash returns true
 			amount := f.requestAmount(p, n)
-			if (bestTd == nil || n.td.Cmp(bestTd) > 0 || amount < bestAmount) && f.isTrustedHash(hash) {
+			if (bestTd == nil || n.td.Cmp(bestTd) > 0 || amount < bestAmount) && (f.isTrustedHash(hash) || f.maxConfirmedTd.Int64() == 0) {
 				bestHash = hash
 				bestTd = n.td
 				bestAmount = amount
@@ -689,13 +697,16 @@ func (f *lightFetcher) checkAnnouncedHeaders(fp *fetcherPeerInfo, headers []*typ
 // checkSyncedHeaders updates peer's block tree after synchronisation by marking
 // downloaded headers as known. If none of the announced headers are found after
 // syncing, the peer is dropped.
-func (f *lightFetcher) checkSyncedHeaders(p *peer) (bool, []*types.Header, *big.Int) {
+func (f *lightFetcher) checkSyncedHeaders(p *peer) (bool, *types.Header, *big.Int) {
 	fp := f.peers[p]
 	if fp == nil {
 		p.Log().Debug("Unknown peer to check sync headers")
 		return false, nil, nil
 	}
 
+	n := fp.lastAnnounced
+	var td *big.Int
+
 	var h *types.Header
 	if f.pm.isULCEnabled() {
 		var unapprovedHashes []common.Hash
@@ -703,40 +714,26 @@ func (f *lightFetcher) checkSyncedHeaders(p *peer) (bool, []*types.Header, *big.
 		h, unapprovedHashes = f.lastTrustedTreeNode(p)
 		//rollback untrusted blocks
 		f.chain.Rollback(unapprovedHashes)
+		//overwrite to last trusted
+		n = fp.nodeByHash[h.Hash()]
 	}
 
-	n := fp.lastAnnounced
+	//find last valid block
-	var td *big.Int
-	trustedHeaderExisted := false
-
-	//find last trusted block
 	for n != nil {
-		//we found last trusted header
+		if td = f.chain.GetTd(n.hash, n.number); td != nil {
-		if n.hash == h.Hash() {
-			trustedHeaderExisted = true
-		}
-		if td = f.chain.GetTd(n.hash, n.number); td != nil && trustedHeaderExisted {
-			break
-		}
-
-		//break if we found last trusted hash before sync
-		if f.lastTrustedHeader == nil {
-			break
-		}
-		if n.hash == f.lastTrustedHeader.Hash() {
 			break
 		}
 		n = n.parent
 	}
 
 	// Now n is the latest downloaded/approved header after syncing
-	if n == nil && !p.isTrusted {
+	if n == nil {
 		p.Log().Debug("Synchronisation failed")
 		go f.pm.removePeer(p.id)
 		return false, nil, nil
 	}
 	header := f.chain.GetHeader(n.hash, n.number)
-	return true, []*types.Header{header}, td
+	return true, header, td
 }
 
 // lastTrustedTreeNode return last approved treeNode and a list of unapproved hashes

vendor/github.com/ethereum/go-ethereum/les/handler.go

@@ -238,8 +238,7 @@ func (pm *ProtocolManager) runPeer(version uint, p *p2p.Peer, rw p2p.MsgReadWrit
 	var entry *poolEntry
 	peer := pm.newPeer(int(version), pm.networkId, p, rw)
 	if pm.serverPool != nil {
-		addr := p.RemoteAddr().(*net.TCPAddr)
+		entry = pm.serverPool.connect(peer, peer.Node())
-		entry = pm.serverPool.connect(peer, addr.IP, uint16(addr.Port))
 	}
 	peer.poolEntry = entry
 	select {
@@ -406,14 +405,13 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 		if p.announceType == announceTypeNone {
 			return errResp(ErrUnexpectedResponse, "")
 		}
-
 		var req announceData
 		if err := msg.Decode(&req); err != nil {
 			return errResp(ErrDecode, "%v: %v", msg, err)
 		}
 
 		if p.announceType == announceTypeSigned {
-			if err := req.checkSignature(p.pubKey); err != nil {
+			if err := req.checkSignature(p.ID()); err != nil {
 				p.Log().Trace("Invalid announcement signature", "err", err)
 				return err
 			}

vendor/github.com/ethereum/go-ethereum/les/odr_requests.go

@@ -84,7 +84,7 @@ func (r *BlockRequest) GetCost(peer *peer) uint64 {
 
 // CanSend tells if a certain peer is suitable for serving the given request
 func (r *BlockRequest) CanSend(peer *peer) bool {
-	return peer.HasBlock(r.Hash, r.Number)
+	return peer.HasBlock(r.Hash, r.Number, false)
 }
 
 // Request sends an ODR request to the LES network (implementation of LesOdrRequest)
@@ -140,7 +140,7 @@ func (r *ReceiptsRequest) GetCost(peer *peer) uint64 {
 
 // CanSend tells if a certain peer is suitable for serving the given request
 func (r *ReceiptsRequest) CanSend(peer *peer) bool {
-	return peer.HasBlock(r.Hash, r.Number)
+	return peer.HasBlock(r.Hash, r.Number, false)
 }
 
 // Request sends an ODR request to the LES network (implementation of LesOdrRequest)
@@ -202,7 +202,7 @@ func (r *TrieRequest) GetCost(peer *peer) uint64 {
 
 // CanSend tells if a certain peer is suitable for serving the given request
 func (r *TrieRequest) CanSend(peer *peer) bool {
-	return peer.HasBlock(r.Id.BlockHash, r.Id.BlockNumber)
+	return peer.HasBlock(r.Id.BlockHash, r.Id.BlockNumber, true)
 }
 
 // Request sends an ODR request to the LES network (implementation of LesOdrRequest)
@@ -272,7 +272,7 @@ func (r *CodeRequest) GetCost(peer *peer) uint64 {
 
 // CanSend tells if a certain peer is suitable for serving the given request
 func (r *CodeRequest) CanSend(peer *peer) bool {
-	return peer.HasBlock(r.Id.BlockHash, r.Id.BlockNumber)
+	return peer.HasBlock(r.Id.BlockHash, r.Id.BlockNumber, true)
 }
 
 // Request sends an ODR request to the LES network (implementation of LesOdrRequest)

vendor/github.com/ethereum/go-ethereum/les/peer.go

@@ -18,7 +18,6 @@
 package les
 
 import (
-	"crypto/ecdsa"
 	"errors"
 	"fmt"
 	"math/big"
@@ -51,7 +50,6 @@ const (
 
 type peer struct {
 	*p2p.Peer
-	pubKey *ecdsa.PublicKey
 
 	rw p2p.MsgReadWriter
 
@@ -69,7 +67,7 @@ type peer struct {
 	sendQueue   *execQueue
 
 	poolEntry      *poolEntry
-	hasBlock       func(common.Hash, uint64) bool
+	hasBlock       func(common.Hash, uint64, bool) bool
 	responseErrors int
 
 	fcClient       *flowcontrol.ClientNode // nil if the peer is server only
@@ -83,11 +81,9 @@ type peer struct {
 
 func newPeer(version int, network uint64, isTrusted bool, p *p2p.Peer, rw p2p.MsgReadWriter) *peer {
 	id := p.ID()
-	pubKey, _ := id.Pubkey()
 
 	return &peer{
 		Peer:        p,
-		pubKey:      pubKey,
 		rw:          rw,
 		version:     version,
 		network:     network,
@@ -179,11 +175,11 @@ func (p *peer) GetRequestCost(msgcode uint64, amount int) uint64 {
 }
 
 // HasBlock checks if the peer has a given block
-func (p *peer) HasBlock(hash common.Hash, number uint64) bool {
+func (p *peer) HasBlock(hash common.Hash, number uint64, hasState bool) bool {
 	p.lock.RLock()
 	hasBlock := p.hasBlock
 	p.lock.RUnlock()
-	return hasBlock != nil && hasBlock(hash, number)
+	return hasBlock != nil && hasBlock(hash, number, hasState)
 }
 
 // SendAnnounce announces the availability of a number of blocks through

vendor/github.com/ethereum/go-ethereum/les/protocol.go

@@ -18,9 +18,7 @@
 package les
 
 import (
-	"bytes"
 	"crypto/ecdsa"
-	"crypto/elliptic"
 	"errors"
 	"fmt"
 	"io"
@@ -30,7 +28,7 @@ import (
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/crypto/secp256k1"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
@@ -148,21 +146,20 @@ func (a *announceData) sign(privKey *ecdsa.PrivateKey) {
 }
 
 // checkSignature verifies if the block announcement has a valid signature by the given pubKey
-func (a *announceData) checkSignature(pubKey *ecdsa.PublicKey) error {
+func (a *announceData) checkSignature(id enode.ID) error {
 	var sig []byte
 	if err := a.Update.decode().get("sign", &sig); err != nil {
 		return err
 	}
 	rlp, _ := rlp.EncodeToBytes(announceBlock{a.Hash, a.Number, a.Td})
-	recPubkey, err := secp256k1.RecoverPubkey(crypto.Keccak256(rlp), sig)
+	recPubkey, err := crypto.SigToPub(crypto.Keccak256(rlp), sig)
 	if err != nil {
 		return err
 	}
-	pbytes := elliptic.Marshal(pubKey.Curve, pubKey.X, pubKey.Y)
+	if id == enode.PubkeyToIDV4(recPubkey) {
-	if bytes.Equal(pbytes, recPubkey) {
 		return nil
 	}
-	return errors.New("Wrong signature")
+	return errors.New("wrong signature")
 }
 
 type blockInfo struct {

vendor/github.com/ethereum/go-ethereum/les/serverpool.go

@@ -18,6 +18,7 @@
 package les
 
 import (
+	"crypto/ecdsa"
 	"fmt"
 	"io"
 	"math"
@@ -28,11 +29,12 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/common/mclock"
+	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
 	"github.com/ethereum/go-ethereum/p2p/discv5"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/rlp"
 )
 
@@ -90,8 +92,7 @@ const (
 // connReq represents a request for peer connection.
 type connReq struct {
 	p      *peer
-	ip     net.IP
+	node   *enode.Node
-	port   uint16
 	result chan *poolEntry
 }
 
@@ -122,11 +123,11 @@ type serverPool struct {
 	topic discv5.Topic
 
 	discSetPeriod chan time.Duration
-	discNodes     chan *discv5.Node
+	discNodes     chan *enode.Node
 	discLookups   chan bool
 
 	trustedNodes         []string
-	entries              map[discover.NodeID]*poolEntry
+	entries              map[enode.ID]*poolEntry
 	timeout, enableRetry chan *poolEntry
 	adjustStats          chan poolStatAdjust
 
@@ -145,7 +146,7 @@ func newServerPool(db ethdb.Database, quit chan struct{}, wg *sync.WaitGroup, tr
 		db:           db,
 		quit:         quit,
 		wg:           wg,
-		entries:      make(map[discover.NodeID]*poolEntry),
+		entries:      make(map[enode.ID]*poolEntry),
 		timeout:      make(chan *poolEntry, 1),
 		adjustStats:  make(chan poolStatAdjust, 100),
 		enableRetry:  make(chan *poolEntry, 1),
@@ -170,25 +171,42 @@ func (pool *serverPool) start(server *p2p.Server, topic discv5.Topic) {
 	pool.dbKey = append([]byte("serverPool/"), []byte(topic)...)
 	pool.wg.Add(1)
 	pool.loadNodes()
+	pool.connectToTrustedNodes()
 
 	if pool.server.DiscV5 != nil {
 		pool.discSetPeriod = make(chan time.Duration, 1)
-		pool.discNodes = make(chan *discv5.Node, 100)
+		pool.discNodes = make(chan *enode.Node, 100)
 		pool.discLookups = make(chan bool, 100)
-		go pool.server.DiscV5.SearchTopic(pool.topic, pool.discSetPeriod, pool.discNodes, pool.discLookups)
+		go pool.discoverNodes()
 	}
 	pool.checkDial()
 	go pool.eventLoop()
 }
 
+// discoverNodes wraps SearchTopic, converting result nodes to enode.Node.
+func (pool *serverPool) discoverNodes() {
+	ch := make(chan *discv5.Node)
+	go func() {
+		pool.server.DiscV5.SearchTopic(pool.topic, pool.discSetPeriod, ch, pool.discLookups)
+		close(ch)
+	}()
+	for n := range ch {
+		pubkey, err := decodePubkey64(n.ID[:])
+		if err != nil {
+			continue
+		}
+		pool.discNodes <- enode.NewV4(pubkey, n.IP, int(n.TCP), int(n.UDP))
+	}
+}
+
 // connect should be called upon any incoming connection. If the connection has been
 // dialed by the server pool recently, the appropriate pool entry is returned.
 // Otherwise, the connection should be rejected.
 // Note that whenever a connection has been accepted and a pool entry has been returned,
 // disconnect should also always be called.
-func (pool *serverPool) connect(p *peer, ip net.IP, port uint16) *poolEntry {
+func (pool *serverPool) connect(p *peer, node *enode.Node) *poolEntry {
 	log.Debug("Connect new entry", "enode", p.id)
-	req := &connReq{p: p, ip: ip, port: port, result: make(chan *poolEntry, 1)}
+	req := &connReq{p: p, node: node, result: make(chan *poolEntry, 1)}
 	select {
 	case pool.connCh <- req:
 	case <-pool.quit:
@@ -199,7 +217,7 @@ func (pool *serverPool) connect(p *peer, ip net.IP, port uint16) *poolEntry {
 
 // registered should be called after a successful handshake
 func (pool *serverPool) registered(entry *poolEntry) {
-	log.Debug("Registered new entry", "enode", entry.id)
+	log.Debug("Registered new entry", "enode", entry.node.ID())
 	req := &registerReq{entry: entry, done: make(chan struct{})}
 	select {
 	case pool.registerCh <- req:
@@ -219,7 +237,7 @@ func (pool *serverPool) disconnect(entry *poolEntry) {
 		stopped = true
 	default:
 	}
-	log.Debug("Disconnected old entry", "enode", entry.id)
+	log.Debug("Disconnected old entry", "enode", entry.node.ID())
 	req := &disconnReq{entry: entry, stopped: stopped, done: make(chan struct{})}
 
 	// Block until disconnection request is served.
@@ -323,7 +341,7 @@ func (pool *serverPool) eventLoop() {
 			}
 
 		case node := <-pool.discNodes:
-			entry := pool.findOrNewNode(discover.NodeID(node.ID), node.IP, node.TCP)
+			entry := pool.findOrNewNode(node)
 			pool.updateCheckDial(entry)
 
 		case conv := <-pool.discLookups:
@@ -344,7 +362,7 @@ func (pool *serverPool) eventLoop() {
 			// Handle peer connection requests.
 			entry := pool.entries[req.p.ID()]
 			if entry == nil {
-				entry = pool.findOrNewNode(req.p.ID(), req.ip, req.port)
+				entry = pool.findOrNewNode(req.node)
 			}
 			if entry.state == psConnected || entry.state == psRegistered {
 				req.result <- nil
@@ -354,8 +372,8 @@ func (pool *serverPool) eventLoop() {
 			entry.peer = req.p
 			entry.state = psConnected
 			addr := &poolEntryAddress{
-				ip:       req.ip,
+				ip:       req.node.IP(),
-				port:     req.port,
+				port:     uint16(req.node.TCP()),
 				lastSeen: mclock.Now(),
 			}
 			entry.lastConnected = addr
@@ -404,18 +422,18 @@ func (pool *serverPool) eventLoop() {
 	}
 }
 
-func (pool *serverPool) findOrNewNode(id discover.NodeID, ip net.IP, port uint16) *poolEntry {
+func (pool *serverPool) findOrNewNode(node *enode.Node) *poolEntry {
 	now := mclock.Now()
-	entry := pool.entries[id]
+	entry := pool.entries[node.ID()]
 	if entry == nil {
-		log.Debug("Discovered new entry", "id", id)
+		log.Debug("Discovered new entry", "id", node.ID())
 		entry = &poolEntry{
-			id:         id,
+			node:       node,
 			addr:       make(map[string]*poolEntryAddress),
 			addrSelect: *newWeightedRandomSelect(),
 			shortRetry: shortRetryCnt,
 		}
-		pool.entries[id] = entry
+		pool.entries[node.ID()] = entry
 		// initialize previously unknown peers with good statistics to give a chance to prove themselves
 		entry.connectStats.add(1, initStatsWeight)
 		entry.delayStats.add(0, initStatsWeight)
@@ -423,10 +441,7 @@ func (pool *serverPool) findOrNewNode(id discover.NodeID, ip net.IP, port uint16
 		entry.timeoutStats.add(0, initStatsWeight)
 	}
 	entry.lastDiscovered = now
-	addr := &poolEntryAddress{
+	addr := &poolEntryAddress{ip: node.IP(), port: uint16(node.TCP())}
-		ip:   ip,
-		port: port,
-	}
 	if a, ok := entry.addr[addr.strKey()]; ok {
 		addr = a
 	} else {
@@ -453,34 +468,38 @@ func (pool *serverPool) loadNodes() {
 		return
 	}
 	for _, e := range list {
-		log.Debug("Loaded server stats", "id", e.id, "fails", e.lastConnected.fails,
+		log.Debug("Loaded server stats", "id", e.node.ID(), "fails", e.lastConnected.fails,
 			"conn", fmt.Sprintf("%v/%v", e.connectStats.avg, e.connectStats.weight),
 			"delay", fmt.Sprintf("%v/%v", time.Duration(e.delayStats.avg), e.delayStats.weight),
 			"response", fmt.Sprintf("%v/%v", time.Duration(e.responseStats.avg), e.responseStats.weight),
 			"timeout", fmt.Sprintf("%v/%v", e.timeoutStats.avg, e.timeoutStats.weight))
-		pool.entries[e.id] = e
+		pool.entries[e.node.ID()] = e
 		pool.knownQueue.setLatest(e)
 		pool.knownSelect.update((*knownEntry)(e))
 	}
+}
 
-	for _, trusted := range pool.parseTrustedServers() {
+func (pool *serverPool) connectToTrustedNodes() {
-		e := pool.findOrNewNode(trusted.ID, trusted.IP, trusted.TCP)
+	//connect to trusted nodes
-		e.trusted = true
+	if len(pool.trustedNodes) > 0 {
-		e.dialed = &poolEntryAddress{ip: trusted.IP, port: trusted.TCP}
+		for _, trusted := range pool.parseTrustedServers() {
-		pool.entries[e.id] = e
+			e := pool.findOrNewNode(trusted)
-		pool.trustedQueue.setLatest(e)
+			e.trusted = true
+			e.dialed = &poolEntryAddress{ip: trusted.IP(), port: uint16(trusted.TCP())}
+			pool.entries[e.node.ID()] = e
+			pool.trustedQueue.setLatest(e)
+		}
 	}
-
 }
 
 // parseTrustedServers returns valid and parsed by discovery enodes.
-func (pool *serverPool) parseTrustedServers() []*discover.Node {
+func (pool *serverPool) parseTrustedServers() []*enode.Node {
-	nodes := make([]*discover.Node, 0, len(pool.trustedNodes))
+	nodes := make([]*enode.Node, 0, len(pool.trustedNodes))
 
-	for _, enode := range pool.trustedNodes {
+	for _, node := range pool.trustedNodes {
-		node, err := discover.ParseNode(enode)
+		node, err := enode.ParseV4(node)
 		if err != nil {
-			log.Warn("Trusted node URL invalid", "enode", enode, "err", err)
+			log.Warn("Trusted node URL invalid", "enode", node, "err", err)
 			continue
 		}
 		nodes = append(nodes, node)
@@ -508,7 +527,7 @@ func (pool *serverPool) removeEntry(entry *poolEntry) {
 	pool.newSelect.remove((*discoveredEntry)(entry))
 	pool.knownSelect.remove((*knownEntry)(entry))
 	entry.removed = true
-	delete(pool.entries, entry.id)
+	delete(pool.entries, entry.node.ID())
 }
 
 // setRetryDial starts the timer which will enable dialing a certain node again
@@ -599,10 +618,10 @@ func (pool *serverPool) dial(entry *poolEntry, knownSelected bool) {
 	if entry.trusted {
 		state = "trusted"
 	}
-	log.Debug("Dialing new peer", "lesaddr", entry.id.String()+"@"+entry.dialed.strKey(), "set", len(entry.addr), state, knownSelected)
+	log.Debug("Dialing new peer", "lesaddr", entry.node.ID().String()+"@"+entry.dialed.strKey(), "set", len(entry.addr), state, knownSelected)
 
 	go func() {
-		pool.server.AddPeer(discover.NewNode(entry.id, entry.dialed.ip, entry.dialed.port, entry.dialed.port))
+		pool.server.AddPeer(entry.node)
 		select {
 		case <-pool.quit:
 		case <-time.After(dialTimeout):
@@ -620,7 +639,7 @@ func (pool *serverPool) checkDialTimeout(entry *poolEntry) {
 	if entry.state != psDialed {
 		return
 	}
-	log.Debug("Dial timeout", "lesaddr", entry.id.String()+"@"+entry.dialed.strKey())
+	log.Debug("Dial timeout", "lesaddr", entry.node.ID().String()+"@"+entry.dialed.strKey())
 	entry.state = psNotConnected
 	if entry.knownSelected {
 		pool.knownSelected--
@@ -642,8 +661,9 @@ const (
 // poolEntry represents a server node and stores its current state and statistics.
 type poolEntry struct {
 	peer                  *peer
-	id                    discover.NodeID
+	pubkey                [64]byte // secp256k1 key of the node
 	addr                  map[string]*poolEntryAddress
+	node                  *enode.Node
 	lastConnected, dialed *poolEntryAddress
 	addrSelect            weightedRandomSelect
 
@@ -661,23 +681,39 @@ type poolEntry struct {
 	shortRetry   int
 }
 
+// poolEntryEnc is the RLP encoding of poolEntry.
+type poolEntryEnc struct {
+	Pubkey                     []byte
+	IP                         net.IP
+	Port                       uint16
+	Fails                      uint
+	CStat, DStat, RStat, TStat poolStats
+}
+
 func (e *poolEntry) EncodeRLP(w io.Writer) error {
-	return rlp.Encode(w, []interface{}{e.id, e.lastConnected.ip, e.lastConnected.port, e.lastConnected.fails, &e.connectStats, &e.delayStats, &e.responseStats, &e.timeoutStats})
+	return rlp.Encode(w, &poolEntryEnc{
+		Pubkey: encodePubkey64(e.node.Pubkey()),
+		IP:     e.lastConnected.ip,
+		Port:   e.lastConnected.port,
+		Fails:  e.lastConnected.fails,
+		CStat:  e.connectStats,
+		DStat:  e.delayStats,
+		RStat:  e.responseStats,
+		TStat:  e.timeoutStats,
+	})
 }
 
 func (e *poolEntry) DecodeRLP(s *rlp.Stream) error {
-	var entry struct {
+	var entry poolEntryEnc
-		ID                         discover.NodeID
-		IP                         net.IP
-		Port                       uint16
-		Fails                      uint
-		CStat, DStat, RStat, TStat poolStats
-	}
 	if err := s.Decode(&entry); err != nil {
 		return err
 	}
+	pubkey, err := decodePubkey64(entry.Pubkey)
+	if err != nil {
+		return err
+	}
 	addr := &poolEntryAddress{ip: entry.IP, port: entry.Port, fails: entry.Fails, lastSeen: mclock.Now()}
-	e.id = entry.ID
+	e.node = enode.NewV4(pubkey, entry.IP, int(entry.Port), int(entry.Port))
 	e.addr = make(map[string]*poolEntryAddress)
 	e.addr[addr.strKey()] = addr
 	e.addrSelect = *newWeightedRandomSelect()
@@ -692,6 +728,14 @@ func (e *poolEntry) DecodeRLP(s *rlp.Stream) error {
 	return nil
 }
 
+func encodePubkey64(pub *ecdsa.PublicKey) []byte {
+	return crypto.FromECDSAPub(pub)[:1]
+}
+
+func decodePubkey64(b []byte) (*ecdsa.PublicKey, error) {
+	return crypto.UnmarshalPubkey(append([]byte{0x04}, b...))
+}
+
 // discoveredEntry implements wrsItem
 type discoveredEntry poolEntry
 

vendor/github.com/ethereum/go-ethereum/les/ulc.go

@@ -1,8 +1,10 @@
 package les
 
 import (
+	"fmt"
+
 	"github.com/ethereum/go-ethereum/eth"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 )
 
 type ulc struct {
@@ -17,17 +19,18 @@ func newULC(ulcConfig *eth.ULCConfig) *ulc {
 
 	m := make(map[string]struct{}, len(ulcConfig.TrustedServers))
 	for _, id := range ulcConfig.TrustedServers {
-		node, err := discover.ParseNode(id)
+		node, err := enode.ParseV4(id)
 		if err != nil {
+			fmt.Println("node:", id, " err:", err)
 			continue
 		}
-		m[node.ID.String()] = struct{}{}
+		m[node.ID().String()] = struct{}{}
 	}
 
 	return &ulc{m, ulcConfig.MinTrustedFraction}
 }
 
-func (u *ulc) isTrusted(p discover.NodeID) bool {
+func (u *ulc) isTrusted(p enode.ID) bool {
 	if u.trustedKeys == nil {
 		return false
 	}

vendor/github.com/ethereum/go-ethereum/light/postprocess.go

@@ -84,23 +84,23 @@ var (
 	}
 	// TestServerIndexerConfig wraps a set of configs as a test indexer config for server side.
 	TestServerIndexerConfig = &IndexerConfig{
-		ChtSize:           256,
+		ChtSize:           64,
-		PairChtSize:       2048,
+		PairChtSize:       512,
-		ChtConfirms:       16,
+		ChtConfirms:       4,
-		BloomSize:         256,
+		BloomSize:         64,
-		BloomConfirms:     16,
+		BloomConfirms:     4,
-		BloomTrieSize:     2048,
+		BloomTrieSize:     512,
-		BloomTrieConfirms: 16,
+		BloomTrieConfirms: 4,
 	}
 	// TestClientIndexerConfig wraps a set of configs as a test indexer config for client side.
 	TestClientIndexerConfig = &IndexerConfig{
-		ChtSize:           2048,
+		ChtSize:           512,
-		PairChtSize:       256,
+		PairChtSize:       64,
-		ChtConfirms:       128,
+		ChtConfirms:       32,
-		BloomSize:         2048,
+		BloomSize:         512,
-		BloomConfirms:     128,
+		BloomConfirms:     32,
-		BloomTrieSize:     2048,
+		BloomTrieSize:     512,
-		BloomTrieConfirms: 128,
+		BloomTrieConfirms: 32,
 	}
 )
 

vendor/github.com/ethereum/go-ethereum/log/term/LICENSE

@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Simon Eskildsen
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.

vendor/github.com/ethereum/go-ethereum/log/term/terminal_appengine.go

@@ -1,13 +0,0 @@
-// Based on ssh/terminal:
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build appengine
-
-package term
-
-// IsTty always returns false on AppEngine.
-func IsTty(fd uintptr) bool {
-	return false
-}

vendor/github.com/ethereum/go-ethereum/log/term/terminal_darwin.go

@@ -1,13 +0,0 @@
-// Based on ssh/terminal:
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-// +build !appengine
-
-package term
-
-import "syscall"
-
-const ioctlReadTermios = syscall.TIOCGETA
-
-type Termios syscall.Termios

vendor/github.com/ethereum/go-ethereum/log/term/terminal_freebsd.go

@@ -1,18 +0,0 @@
-package term
-
-import (
-	"syscall"
-)
-
-const ioctlReadTermios = syscall.TIOCGETA
-
-// Go 1.2 doesn't include Termios for FreeBSD. This should be added in 1.3 and this could be merged with terminal_darwin.
-type Termios struct {
-	Iflag  uint32
-	Oflag  uint32
-	Cflag  uint32
-	Lflag  uint32
-	Cc     [20]uint8
-	Ispeed uint32
-	Ospeed uint32
-}

vendor/github.com/ethereum/go-ethereum/log/term/terminal_linux.go

@@ -1,14 +0,0 @@
-// Based on ssh/terminal:
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !appengine
-
-package term
-
-import "syscall"
-
-const ioctlReadTermios = syscall.TCGETS
-
-type Termios syscall.Termios

vendor/github.com/ethereum/go-ethereum/log/term/terminal_netbsd.go

@@ -1,7 +0,0 @@
-package term
-
-import "syscall"
-
-const ioctlReadTermios = syscall.TIOCGETA
-
-type Termios syscall.Termios

vendor/github.com/ethereum/go-ethereum/log/term/terminal_notwindows.go

@@ -1,20 +0,0 @@
-// Based on ssh/terminal:
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build linux,!appengine darwin freebsd openbsd netbsd
-
-package term
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-// IsTty returns true if the given file descriptor is a terminal.
-func IsTty(fd uintptr) bool {
-	var termios Termios
-	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, fd, ioctlReadTermios, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
-	return err == 0
-}

vendor/github.com/ethereum/go-ethereum/log/term/terminal_openbsd.go

@@ -1,7 +0,0 @@
-package term
-
-import "syscall"
-
-const ioctlReadTermios = syscall.TIOCGETA
-
-type Termios syscall.Termios

vendor/github.com/ethereum/go-ethereum/log/term/terminal_solaris.go

@@ -1,9 +0,0 @@
-package term
-
-import "golang.org/x/sys/unix"
-
-// IsTty returns true if the given file descriptor is a terminal.
-func IsTty(fd uintptr) bool {
-	_, err := unix.IoctlGetTermios(int(fd), unix.TCGETA)
-	return err == nil
-}

vendor/github.com/ethereum/go-ethereum/log/term/terminal_windows.go

@@ -1,26 +0,0 @@
-// Based on ssh/terminal:
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build windows
-
-package term
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-var kernel32 = syscall.NewLazyDLL("kernel32.dll")
-
-var (
-	procGetConsoleMode = kernel32.NewProc("GetConsoleMode")
-)
-
-// IsTty returns true if the given file descriptor is a terminal.
-func IsTty(fd uintptr) bool {
-	var st uint32
-	r, _, e := syscall.Syscall(procGetConsoleMode.Addr(), 2, fd, uintptr(unsafe.Pointer(&st)), 0)
-	return r != 0 && e == 0
-}

vendor/github.com/ethereum/go-ethereum/metrics/counter.go

@@ -1,6 +1,8 @@
 package metrics
 
-import "sync/atomic"
+import (
+	"sync/atomic"
+)
 
 // Counters hold an int64 value that can be incremented and decremented.
 type Counter interface {
@@ -28,6 +30,12 @@ func NewCounter() Counter {
 	return &StandardCounter{0}
 }
 
+// NewCounterForced constructs a new StandardCounter and returns it no matter if
+// the global switch is enabled or not.
+func NewCounterForced() Counter {
+	return &StandardCounter{0}
+}
+
 // NewRegisteredCounter constructs and registers a new StandardCounter.
 func NewRegisteredCounter(name string, r Registry) Counter {
 	c := NewCounter()
@@ -38,6 +46,19 @@ func NewRegisteredCounter(name string, r Registry) Counter {
 	return c
 }
 
+// NewRegisteredCounterForced constructs and registers a new StandardCounter
+// and launches a goroutine no matter the global switch is enabled or not.
+// Be sure to unregister the counter from the registry once it is of no use to
+// allow for garbage collection.
+func NewRegisteredCounterForced(name string, r Registry) Counter {
+	c := NewCounterForced()
+	if nil == r {
+		r = DefaultRegistry
+	}
+	r.Register(name, c)
+	return c
+}
+
 // CounterSnapshot is a read-only copy of another Counter.
 type CounterSnapshot int64
 

vendor/github.com/ethereum/go-ethereum/miner/unconfirmed.go

@@ -43,7 +43,7 @@ type unconfirmedBlock struct {
 }
 
 // unconfirmedBlocks implements a data structure to maintain locally mined blocks
-// have have not yet reached enough maturity to guarantee chain inclusion. It is
+// have not yet reached enough maturity to guarantee chain inclusion. It is
 // used by the miner to provide logs to the user when a previously mined block
 // has a high enough guarantee to not be reorged out of the canonical chain.
 type unconfirmedBlocks struct {

vendor/github.com/ethereum/go-ethereum/node/api.go

@@ -26,7 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/metrics"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/rpc"
 )
 
@@ -51,7 +51,7 @@ func (api *PrivateAdminAPI) AddPeer(url string) (bool, error) {
 		return false, ErrNodeStopped
 	}
 	// Try to add the url as a static peer and return
-	node, err := discover.ParseNode(url)
+	node, err := enode.ParseV4(url)
 	if err != nil {
 		return false, fmt.Errorf("invalid enode: %v", err)
 	}
@@ -67,7 +67,7 @@ func (api *PrivateAdminAPI) RemovePeer(url string) (bool, error) {
 		return false, ErrNodeStopped
 	}
 	// Try to remove the url as a static peer and return
-	node, err := discover.ParseNode(url)
+	node, err := enode.ParseV4(url)
 	if err != nil {
 		return false, fmt.Errorf("invalid enode: %v", err)
 	}
@@ -82,7 +82,7 @@ func (api *PrivateAdminAPI) AddTrustedPeer(url string) (bool, error) {
 	if server == nil {
 		return false, ErrNodeStopped
 	}
-	node, err := discover.ParseNode(url)
+	node, err := enode.ParseV4(url)
 	if err != nil {
 		return false, fmt.Errorf("invalid enode: %v", err)
 	}
@@ -98,7 +98,7 @@ func (api *PrivateAdminAPI) RemoveTrustedPeer(url string) (bool, error) {
 	if server == nil {
 		return false, ErrNodeStopped
 	}
-	node, err := discover.ParseNode(url)
+	node, err := enode.ParseV4(url)
 	if err != nil {
 		return false, fmt.Errorf("invalid enode: %v", err)
 	}

vendor/github.com/ethereum/go-ethereum/node/config.go

@@ -32,7 +32,7 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/p2p"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/rpc"
 )
 
@@ -336,18 +336,18 @@ func (c *Config) NodeKey() *ecdsa.PrivateKey {
 }
 
 // StaticNodes returns a list of node enode URLs configured as static nodes.
-func (c *Config) StaticNodes() []*discover.Node {
+func (c *Config) StaticNodes() []*enode.Node {
 	return c.parsePersistentNodes(c.ResolvePath(datadirStaticNodes))
 }
 
 // TrustedNodes returns a list of node enode URLs configured as trusted nodes.
-func (c *Config) TrustedNodes() []*discover.Node {
+func (c *Config) TrustedNodes() []*enode.Node {
 	return c.parsePersistentNodes(c.ResolvePath(datadirTrustedNodes))
 }
 
 // parsePersistentNodes parses a list of discovery node URLs loaded from a .json
 // file from within the data directory.
-func (c *Config) parsePersistentNodes(path string) []*discover.Node {
+func (c *Config) parsePersistentNodes(path string) []*enode.Node {
 	// Short circuit if no node config is present
 	if c.DataDir == "" {
 		return nil
@@ -362,12 +362,12 @@ func (c *Config) parsePersistentNodes(path string) []*discover.Node {
 		return nil
 	}
 	// Interpret the list as a discovery node array
-	var nodes []*discover.Node
+	var nodes []*enode.Node
 	for _, url := range nodelist {
 		if url == "" {
 			continue
 		}
-		node, err := discover.ParseNode(url)
+		node, err := enode.ParseV4(url)
 		if err != nil {
 			log.Error(fmt.Sprintf("Node URL %s: %v\n", url, err))
 			continue

vendor/github.com/ethereum/go-ethereum/p2p/dial.go

@@ -18,14 +18,13 @@ package p2p
 
 import (
 	"container/heap"
-	"crypto/rand"
 	"errors"
 	"fmt"
 	"net"
 	"time"
 
 	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/p2p/discover"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/netutil"
 )
 
@@ -50,7 +49,7 @@ const (
 // NodeDialer is used to connect to nodes in the network, typically by using
 // an underlying net.Dialer but also using net.Pipe in tests
 type NodeDialer interface {
-	Dial(*discover.Node) (net.Conn, error)
+	Dial(*enode.Node) (net.Conn, error)
 }
 
 // TCPDialer implements the NodeDialer interface by using a net.Dialer to
@@ -60,8 +59,8 @@ type TCPDialer struct {
 }
 
 // Dial creates a TCP connection to the node
-func (t TCPDialer) Dial(dest *discover.Node) (net.Conn, error) {
+func (t TCPDialer) Dial(dest *enode.Node) (net.Conn, error) {
-	addr := &net.TCPAddr{IP: dest.IP, Port: int(dest.TCP)}
+	addr := &net.TCPAddr{IP: dest.IP(), Port: dest.TCP()}
 	return t.Dialer.Dial("tcp", addr.String())
 }
 
@@ -74,22 +73,22 @@ type dialstate struct {
 	netrestrict *netutil.Netlist
 
 	lookupRunning bool
-	dialing       map[discover.NodeID]connFlag
+	dialing       map[enode.ID]connFlag
-	lookupBuf     []*discover.Node // current discovery lookup results
+	lookupBuf     []*enode.Node // current discovery lookup results
-	randomNodes   []*discover.Node // filled from Table
+	randomNodes   []*enode.Node // filled from Table
-	static        map[discover.NodeID]*dialTask
+	static        map[enode.ID]*dialTask
 	hist          *dialHistory
 
-	start     time.Time        // time when the dialer was first used
+	start     time.Time     // time when the dialer was first used
-	bootnodes []*discover.Node // default dials when there are no peers
+	bootnodes []*enode.Node // default dials when there are no peers
 }
 
 type discoverTable interface {
-	Self() *discover.Node
+	Self() *enode.Node
 	Close()
-	Resolve(target discover.NodeID) *discover.Node
+	Resolve(*enode.Node) *enode.Node
-	Lookup(target discover.NodeID) []*discover.Node
+	LookupRandom() []*enode.Node
-	ReadRandomNodes([]*discover.Node) int
+	ReadRandomNodes([]*enode.Node) int
 }
 
 // the dial history remembers recent dials.
@@ -97,7 +96,7 @@ type dialHistory []pastDial
 
 // pastDial is an entry in the dial history.
 type pastDial struct {
-	id  discover.NodeID
+	id  enode.ID
 	exp time.Time
 }
 
@@ -109,7 +108,7 @@ type task interface {
 // fields cannot be accessed while the task is running.
 type dialTask struct {
 	flags        connFlag
-	dest         *discover.Node
+	dest         *enode.Node
 	lastResolved time.Time
 	resolveDelay time.Duration
 }
@@ -118,7 +117,7 @@ type dialTask struct {
 // Only one discoverTask is active at any time.
 // discoverTask.Do performs a random lookup.
 type discoverTask struct {
-	results []*discover.Node
+	results []*enode.Node
 }
 
 // A waitExpireTask is generated if there are no other tasks
@@ -127,15 +126,15 @@ type waitExpireTask struct {
 	time.Duration
 }
 
-func newDialState(static []*discover.Node, bootnodes []*discover.Node, ntab discoverTable, maxdyn int, netrestrict *netutil.Netlist) *dialstate {
+func newDialState(static []*enode.Node, bootnodes []*enode.Node, ntab discoverTable, maxdyn int, netrestrict *netutil.Netlist) *dialstate {
 	s := &dialstate{
 		maxDynDials: maxdyn,
 		ntab:        ntab,
 		netrestrict: netrestrict,
-		static:      make(map[discover.NodeID]*dialTask),
+		static:      make(map[enode.ID]*dialTask),
-		dialing:     make(map[discover.NodeID]connFlag),
+		dialing:     make(map[enode.ID]connFlag),
-		bootnodes:   make([]*discover.Node, len(bootnodes)),
+		bootnodes:   make([]*enode.Node, len(bootnodes)),
-		randomNodes: make([]*discover.Node, maxdyn/2),
+		randomNodes: make([]*enode.Node, maxdyn/2),
 		hist:        new(dialHistory),
 	}
 	copy(s.bootnodes, bootnodes)
@@ -145,32 +144,32 @@ func newDialState(static []*discover.Node, bootnodes []*discover.Node, ntab disc
 	return s
 }
 
-func (s *dialstate) addStatic(n *discover.Node) {
+func (s *dialstate) addStatic(n *enode.Node) {
 	// This overwrites the task instead of updating an existing
 	// entry, giving users the opportunity to force a resolve operation.
-	s.static[n.ID] = &dialTask{flags: staticDialedConn, dest: n}
+	s.static[n.ID()] = &dialTask{flags: staticDialedConn, dest: n}
 }
 
-func (s *dialstate) removeStatic(n *discover.Node) {
+func (s *dialstate) removeStatic(n *enode.Node) {
 	// This removes a task so future attempts to connect will not be made.
-	delete(s.static, n.ID)
+	delete(s.static, n.ID())
 	// This removes a previous dial timestamp so that application
 	// can force a server to reconnect with chosen peer immediately.
-	s.hist.remove(n.ID)
+	s.hist.remove(n.ID())
 }
 
-func (s *dialstate) newTasks(nRunning int, peers map[discover.NodeID]*Peer, now time.Time) []task {
+func (s *dialstate) newTasks(nRunning int, peers map[enode.ID]*Peer, now time.Time) []task {
 	if s.start.IsZero() {
 		s.start = now
 	}
 
 	var newtasks []task
-	addDial := func(flag connFlag, n *discover.Node) bool {
+	addDial := func(flag connFlag, n *enode.Node) bool {
 		if err := s.checkDial(n, peers); err != nil {
-			log.Trace("Skipping dial candidate", "id", n.ID, "addr", &net.TCPAddr{IP: n.IP, Port: int(n.TCP)}, "err", err)
+			log.Trace("Skipping dial candidate", "id", n.ID(), "addr", &net.TCPAddr{IP: n.IP(), Port: n.TCP()}, "err", err)
 			return false
 		}
-		s.dialing[n.ID] = flag
+		s.dialing[n.ID()] = flag
 		newtasks = append(newtasks, &dialTask{flags: flag, dest: n})
 		return true
 	}
@@ -196,8 +195,8 @@ func (s *dialstate) newTasks(nRunning int, peers map[discover.NodeID]*Peer, now
 		err := s.checkDial(t.dest, peers)
 		switch err {
 		case errNotWhitelisted, errSelf:
-			log.Warn("Removing static dial candidate", "id", t.dest.ID, "addr", &net.TCPAddr{IP: t.dest.IP, Port: int(t.dest.TCP)}, "err", err)
+			log.Warn("Removing static dial candidate", "id", t.dest.ID, "addr", &net.TCPAddr{IP: t.dest.IP(), Port: t.dest.TCP()}, "err", err)
-			delete(s.static, t.dest.ID)
+			delete(s.static, t.dest.ID())
 		case nil:
 			s.dialing[id] = t.flags
 			newtasks = append(newtasks, t)
@@ -260,18 +259,18 @@ var (
 	errNotWhitelisted   = errors.New("not contained in netrestrict whitelist")
 )
 
-func (s *dialstate) checkDial(n *discover.Node, peers map[discover.NodeID]*Peer) error {
+func (s *dialstate) checkDial(n *enode.Node, peers map[enode.ID]*Peer) error {
-	_, dialing := s.dialing[n.ID]
+	_, dialing := s.dialing[n.ID()]
 	switch {
 	case dialing:
 		return errAlreadyDialing
-	case peers[n.ID] != nil:
+	case peers[n.ID()] != nil:
 		return errAlreadyConnected
-	case s.ntab != nil && n.ID == s.ntab.Self().ID:
+	case s.ntab != nil && n.ID() == s.ntab.Self().ID():
 		return errSelf
-	case s.netrestrict != nil && !s.netrestrict.Contains(n.IP):
+	case s.netrestrict != nil && !s.netrestrict.Contains(n.IP()):
 		return errNotWhitelisted
-	case s.hist.contains(n.ID):
+	case s.hist.contains(n.ID()):
 		return errRecentlyDialed
 	}
 	return nil
@@ -280,8 +279,8 @@ func (s *dialstate) checkDial(n *discover.Node, peers map[discover.NodeID]*Peer)
 func (s *dialstate) taskDone(t task, now time.Time) {
 	switch t := t.(type) {
 	case *dialTask:
-		s.hist.add(t.dest.ID, now.Add(dialHistoryExpiration))
+		s.hist.add(t.dest.ID(), now.Add(dialHistoryExpiration))
-		delete(s.dialing, t.dest.ID)
+		delete(s.dialing, t.dest.ID())
 	case *discoverTask:
 		s.lookupRunning = false
 		s.lookupBuf = append(s.lookupBuf, t.results...)
@@ -323,7 +322,7 @@ func (t *dialTask) resolve(srv *Server) bool {
 	if time.Since(t.lastResolved) < t.resolveDelay {
 		return false
 	}
-	resolved := srv.ntab.Resolve(t.dest.ID)
+	resolved := srv.ntab.Resolve(t.dest)
 	t.lastResolved = time.Now()
 	if resolved == nil {
 		t.resolveDelay *= 2
@@ -336,7 +335,7 @@ func (t *dialTask) resolve(srv *Server) bool {
 	// The node was found.
 	t.resolveDelay = initialResolveDelay
 	t.dest = resolved
-	log.Debug("Resolved node", "id", t.dest.ID, "addr", &net.TCPAddr{IP: t.dest.IP, Port: int(t.dest.TCP)})
+	log.Debug("Resolved node", "id", t.dest.ID, "addr", &net.TCPAddr{IP: t.dest.IP(), Port: t.dest.TCP()})
 	return true
 }
 
@@ -345,7 +344,7 @@ type dialError struct {
 }
 
 // dial performs the actual connection attempt.
-func (t *dialTask) dial(srv *Server, dest *discover.Node) error {
+func (t *dialTask) dial(srv *Server, dest *enode.Node) error {
 	fd, err := srv.Dialer.Dial(dest)
 	if err != nil {
 		return &dialError{err}
@@ -355,7 +354,8 @@ func (t *dialTask) dial(srv *Server, dest *discover.Node) error {
 }
 
 func (t *dialTask) String() string {
-	return fmt.Sprintf("%v %x %v:%d", t.flags, t.dest.ID[:8], t.dest.IP, t.dest.TCP)
+	id := t.dest.ID()
+	return fmt.Sprintf("%v %x %v:%d", t.flags, id[:8], t.dest.IP(), t.dest.TCP())
 }
 
 func (t *discoverTask) Do(srv *Server) {
@@ -367,9 +367,7 @@ func (t *discoverTask) Do(srv *Server) {
 		time.Sleep(next.Sub(now))
 	}
 	srv.lastLookup = time.Now()
-	var target discover.NodeID
+	t.results = srv.ntab.LookupRandom()
-	rand.Read(target[:])
-	t.results = srv.ntab.Lookup(target)
 }
 
 func (t *discoverTask) String() string {
@@ -391,11 +389,11 @@ func (t waitExpireTask) String() string {
 func (h dialHistory) min() pastDial {
 	return h[0]
 }
-func (h *dialHistory) add(id discover.NodeID, exp time.Time) {
+func (h *dialHistory) add(id enode.ID, exp time.Time) {
 	heap.Push(h, pastDial{id, exp})
 
 }
-func (h *dialHistory) remove(id discover.NodeID) bool {
+func (h *dialHistory) remove(id enode.ID) bool {
 	for i, v := range *h {
 		if v.id == id {
 			heap.Remove(h, i)
@@ -404,7 +402,7 @@ func (h *dialHistory) remove(id discover.NodeID) bool {
 	}
 	return false
 }
-func (h dialHistory) contains(id discover.NodeID) bool {
+func (h dialHistory) contains(id enode.ID) bool {
 	for _, v := range h {
 		if v.id == id {
 			return true

vendor/github.com/ethereum/go-ethereum/p2p/discover/node.go

@@ -18,415 +18,87 @@ package discover
 
 import (
 	"crypto/ecdsa"
-	"crypto/elliptic"
-	"encoding/hex"
 	"errors"
-	"fmt"
 	"math/big"
-	"math/rand"
 	"net"
-	"net/url"
-	"regexp"
-	"strconv"
-	"strings"
 	"time"
 
-	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/crypto/secp256k1"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 )
 
-const NodeIDBits = 512
+// node represents a host on the network.
-
-// Node represents a host on the network.
 // The fields of Node may not be modified.
-type Node struct {
+type node struct {
-	IP       net.IP // len 4 for IPv4 or 16 for IPv6
+	enode.Node
-	UDP, TCP uint16 // port numbers
+	addedAt time.Time // time when the node was added to the table
-	ID       NodeID // the node's public key
-
-	// This is a cached copy of sha3(ID) which is used for node
-	// distance calculations. This is part of Node in order to make it
-	// possible to write tests that need a node at a certain distance.
-	// In those tests, the content of sha will not actually correspond
-	// with ID.
-	sha common.Hash
-
-	// Time when the node was added to the table.
-	addedAt time.Time
 }
 
-// NewNode creates a new node. It is mostly meant to be used for
+type encPubkey [64]byte
-// testing purposes.
+
-func NewNode(id NodeID, ip net.IP, udpPort, tcpPort uint16) *Node {
+func encodePubkey(key *ecdsa.PublicKey) encPubkey {
-	if ipv4 := ip.To4(); ipv4 != nil {
+	var e encPubkey
-		ip = ipv4
+	math.ReadBits(key.X, e[:len(e)/2])
-	}
+	math.ReadBits(key.Y, e[len(e)/2:])
-	return &Node{
+	return e
-		IP:  ip,
-		UDP: udpPort,
-		TCP: tcpPort,
-		ID:  id,
-		sha: crypto.Keccak256Hash(id[:]),
-	}
 }
 
-func (n *Node) addr() *net.UDPAddr {
+func decodePubkey(e encPubkey) (*ecdsa.PublicKey, error) {
-	return &net.UDPAddr{IP: n.IP, Port: int(n.UDP)}
-}
-
-// Incomplete returns true for nodes with no IP address.
-func (n *Node) Incomplete() bool {
-	return n.IP == nil
-}
-
-// checks whether n is a valid complete node.
-func (n *Node) validateComplete() error {
-	if n.Incomplete() {
-		return errors.New("incomplete node")
-	}
-	if n.UDP == 0 {
-		return errors.New("missing UDP port")
-	}
-	if n.TCP == 0 {
-		return errors.New("missing TCP port")
-	}
-	if n.IP.IsMulticast() || n.IP.IsUnspecified() {
-		return errors.New("invalid IP (multicast/unspecified)")
-	}
-	_, err := n.ID.Pubkey() // validate the key (on curve, etc.)
-	return err
-}
-
-// The string representation of a Node is a URL.
-// Please see ParseNode for a description of the format.
-func (n *Node) String() string {
-	u := url.URL{Scheme: "enode"}
-	if n.Incomplete() {
-		u.Host = fmt.Sprintf("%x", n.ID[:])
-	} else {
-		addr := net.TCPAddr{IP: n.IP, Port: int(n.TCP)}
-		u.User = url.User(fmt.Sprintf("%x", n.ID[:]))
-		u.Host = addr.String()
-		if n.UDP != n.TCP {
-			u.RawQuery = "discport=" + strconv.Itoa(int(n.UDP))
-		}
-	}
-	return u.String()
-}
-
-var incompleteNodeURL = regexp.MustCompile("(?i)^(?:enode://)?([0-9a-f]+)$")
-
-// ParseNode parses a node designator.
-//
-// There are two basic forms of node designators
-//   - incomplete nodes, which only have the public key (node ID)
-//   - complete nodes, which contain the public key and IP/Port information
-//
-// For incomplete nodes, the designator must look like one of these
-//
-//    enode://<hex node id>
-//    <hex node id>
-//
-// For complete nodes, the node ID is encoded in the username portion
-// of the URL, separated from the host by an @ sign. The hostname can
-// only be given as an IP address, DNS domain names are not allowed.
-// The port in the host name section is the TCP listening port. If the
-// TCP and UDP (discovery) ports differ, the UDP port is specified as
-// query parameter "discport".
-//
-// In the following example, the node URL describes
-// a node with IP address 10.3.58.6, TCP listening port 30303
-// and UDP discovery port 30301.
-//
-//    enode://<hex node id>@10.3.58.6:30303?discport=30301
-func ParseNode(rawurl string) (*Node, error) {
-	if m := incompleteNodeURL.FindStringSubmatch(rawurl); m != nil {
-		id, err := HexID(m[1])
-		if err != nil {
-			return nil, fmt.Errorf("invalid node ID (%v)", err)
-		}
-		return NewNode(id, nil, 0, 0), nil
-	}
-	return parseComplete(rawurl)
-}
-
-func parseComplete(rawurl string) (*Node, error) {
-	var (
-		id               NodeID
-		ip               net.IP
-		tcpPort, udpPort uint64
-	)
-	u, err := url.Parse(rawurl)
-	if err != nil {
-		return nil, err
-	}
-	if u.Scheme != "enode" {
-		return nil, errors.New("invalid URL scheme, want \"enode\"")
-	}
-	// Parse the Node ID from the user portion.
-	if u.User == nil {
-		return nil, errors.New("does not contain node ID")
-	}
-	if id, err = HexID(u.User.String()); err != nil {
-		return nil, fmt.Errorf("invalid node ID (%v)", err)
-	}
-	// Parse the IP address.
-	host, port, err := net.SplitHostPort(u.Host)
-	if err != nil {
-		return nil, fmt.Errorf("invalid host: %v", err)
-	}
-	if ip = net.ParseIP(host); ip == nil {
-		return nil, errors.New("invalid IP address")
-	}
-	// Ensure the IP is 4 bytes long for IPv4 addresses.
-	if ipv4 := ip.To4(); ipv4 != nil {
-		ip = ipv4
-	}
-	// Parse the port numbers.
-	if tcpPort, err = strconv.ParseUint(port, 10, 16); err != nil {
-		return nil, errors.New("invalid port")
-	}
-	udpPort = tcpPort
-	qv := u.Query()
-	if qv.Get("discport") != "" {
-		udpPort, err = strconv.ParseUint(qv.Get("discport"), 10, 16)
-		if err != nil {
-			return nil, errors.New("invalid discport in query")
-		}
-	}
-	return NewNode(id, ip, uint16(udpPort), uint16(tcpPort)), nil
-}
-
-// MustParseNode parses a node URL. It panics if the URL is not valid.
-func MustParseNode(rawurl string) *Node {
-	n, err := ParseNode(rawurl)
-	if err != nil {
-		panic("invalid node URL: " + err.Error())
-	}
-	return n
-}
-
-// MarshalText implements encoding.TextMarshaler.
-func (n *Node) MarshalText() ([]byte, error) {
-	return []byte(n.String()), nil
-}
-
-// UnmarshalText implements encoding.TextUnmarshaler.
-func (n *Node) UnmarshalText(text []byte) error {
-	dec, err := ParseNode(string(text))
-	if err == nil {
-		*n = *dec
-	}
-	return err
-}
-
-// NodeID is a unique identifier for each node.
-// The node identifier is a marshaled elliptic curve public key.
-type NodeID [NodeIDBits / 8]byte
-
-// Bytes returns a byte slice representation of the NodeID
-func (n NodeID) Bytes() []byte {
-	return n[:]
-}
-
-// NodeID prints as a long hexadecimal number.
-func (n NodeID) String() string {
-	return fmt.Sprintf("%x", n[:])
-}
-
-// The Go syntax representation of a NodeID is a call to HexID.
-func (n NodeID) GoString() string {
-	return fmt.Sprintf("discover.HexID(\"%x\")", n[:])
-}
-
-// TerminalString returns a shortened hex string for terminal logging.
-func (n NodeID) TerminalString() string {
-	return hex.EncodeToString(n[:8])
-}
-
-// MarshalText implements the encoding.TextMarshaler interface.
-func (n NodeID) MarshalText() ([]byte, error) {
-	return []byte(hex.EncodeToString(n[:])), nil
-}
-
-// UnmarshalText implements the encoding.TextUnmarshaler interface.
-func (n *NodeID) UnmarshalText(text []byte) error {
-	id, err := HexID(string(text))
-	if err != nil {
-		return err
-	}
-	*n = id
-	return nil
-}
-
-// BytesID converts a byte slice to a NodeID
-func BytesID(b []byte) (NodeID, error) {
-	var id NodeID
-	if len(b) != len(id) {
-		return id, fmt.Errorf("wrong length, want %d bytes", len(id))
-	}
-	copy(id[:], b)
-	return id, nil
-}
-
-// MustBytesID converts a byte slice to a NodeID.
-// It panics if the byte slice is not a valid NodeID.
-func MustBytesID(b []byte) NodeID {
-	id, err := BytesID(b)
-	if err != nil {
-		panic(err)
-	}
-	return id
-}
-
-// HexID converts a hex string to a NodeID.
-// The string may be prefixed with 0x.
-func HexID(in string) (NodeID, error) {
-	var id NodeID
-	b, err := hex.DecodeString(strings.TrimPrefix(in, "0x"))
-	if err != nil {
-		return id, err
-	} else if len(b) != len(id) {
-		return id, fmt.Errorf("wrong length, want %d hex chars", len(id)*2)
-	}
-	copy(id[:], b)
-	return id, nil
-}
-
-// MustHexID converts a hex string to a NodeID.
-// It panics if the string is not a valid NodeID.
-func MustHexID(in string) NodeID {
-	id, err := HexID(in)
-	if err != nil {
-		panic(err)
-	}
-	return id
-}
-
-// PubkeyID returns a marshaled representation of the given public key.
-func PubkeyID(pub *ecdsa.PublicKey) NodeID {
-	var id NodeID
-	pbytes := elliptic.Marshal(pub.Curve, pub.X, pub.Y)
-	if len(pbytes)-1 != len(id) {
-		panic(fmt.Errorf("need %d bit pubkey, got %d bits", (len(id)+1)*8, len(pbytes)))
-	}
-	copy(id[:], pbytes[1:])
-	return id
-}
-
-// Pubkey returns the public key represented by the node ID.
-// It returns an error if the ID is not a point on the curve.
-func (id NodeID) Pubkey() (*ecdsa.PublicKey, error) {
 	p := &ecdsa.PublicKey{Curve: crypto.S256(), X: new(big.Int), Y: new(big.Int)}
-	half := len(id) / 2
+	half := len(e) / 2
-	p.X.SetBytes(id[:half])
+	p.X.SetBytes(e[:half])
-	p.Y.SetBytes(id[half:])
+	p.Y.SetBytes(e[half:])
 	if !p.Curve.IsOnCurve(p.X, p.Y) {
-		return nil, errors.New("id is invalid secp256k1 curve point")
+		return nil, errors.New("invalid secp256k1 curve point")
 	}
 	return p, nil
 }
 
-// recoverNodeID computes the public key used to sign the
+func (e encPubkey) id() enode.ID {
+	return enode.ID(crypto.Keccak256Hash(e[:]))
+}
+
+// recoverNodeKey computes the public key used to sign the
 // given hash from the signature.
-func recoverNodeID(hash, sig []byte) (id NodeID, err error) {
+func recoverNodeKey(hash, sig []byte) (key encPubkey, err error) {
 	pubkey, err := secp256k1.RecoverPubkey(hash, sig)
 	if err != nil {
-		return id, err
+		return key, err
 	}
-	if len(pubkey)-1 != len(id) {
+	copy(key[:], pubkey[1:])
-		return id, fmt.Errorf("recovered pubkey has %d bits, want %d bits", len(pubkey)*8, (len(id)+1)*8)
+	return key, nil
-	}
-	for i := range id {
-		id[i] = pubkey[i+1]
-	}
-	return id, nil
 }
 
-// distcmp compares the distances a->target and b->target.
+func wrapNode(n *enode.Node) *node {
-// Returns -1 if a is closer to target, 1 if b is closer to target
+	return &node{Node: *n}
-// and 0 if they are equal.
-func distcmp(target, a, b common.Hash) int {
-	for i := range target {
-		da := a[i] ^ target[i]
-		db := b[i] ^ target[i]
-		if da > db {
-			return 1
-		} else if da < db {
-			return -1
-		}
-	}
-	return 0
 }
 
-// table of leading zero counts for bytes [0..255]
+func wrapNodes(ns []*enode.Node) []*node {
-var lzcount = [256]int{
+	result := make([]*node, len(ns))
-	8, 7, 6, 6, 5, 5, 5, 5,
+	for i, n := range ns {
-	4, 4, 4, 4, 4, 4, 4, 4,
+		result[i] = wrapNode(n)
-	3, 3, 3, 3, 3, 3, 3, 3,
+	}
-	3, 3, 3, 3, 3, 3, 3, 3,
+	return result
-	2, 2, 2, 2, 2, 2, 2, 2,
-	2, 2, 2, 2, 2, 2, 2, 2,
-	2, 2, 2, 2, 2, 2, 2, 2,
-	2, 2, 2, 2, 2, 2, 2, 2,
-	1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 1, 1, 1, 1,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0,
 }
 
-// logdist returns the logarithmic distance between a and b, log2(a ^ b).
+func unwrapNode(n *node) *enode.Node {
-func logdist(a, b common.Hash) int {
+	return &n.Node
-	lz := 0
-	for i := range a {
-		x := a[i] ^ b[i]
-		if x == 0 {
-			lz += 8
-		} else {
-			lz += lzcount[x]
-			break
-		}
-	}
-	return len(a)*8 - lz
 }
 
-// hashAtDistance returns a random hash such that logdist(a, b) == n
+func unwrapNodes(ns []*node) []*enode.Node {
-func hashAtDistance(a common.Hash, n int) (b common.Hash) {
+	result := make([]*enode.Node, len(ns))
-	if n == 0 {
+	for i, n := range ns {
-		return a
+		result[i] = unwrapNode(n)
 	}
-	// flip bit at position n, fill the rest with random bits
+	return result
-	b = a
+}
-	pos := len(a) - n/8 - 1
+
-	bit := byte(0x01) << (byte(n%8) - 1)
+func (n *node) addr() *net.UDPAddr {
-	if bit == 0 {
+	return &net.UDPAddr{IP: n.IP(), Port: n.UDP()}
-		pos++
+}
-		bit = 0x80
+
-	}
+func (n *node) String() string {
-	b[pos] = a[pos]&^bit | ^a[pos]&bit // TODO: randomize end bits
+	return n.Node.String()
-	for i := pos + 1; i < len(a); i++ {
-		b[i] = byte(rand.Intn(255))
-	}
-	return b
 }

vendor/github.com/ethereum/go-ethereum/p2p/discover/table.go

@@ -23,6 +23,7 @@
 package discover
 
 import (
+	"crypto/ecdsa"
 	crand "crypto/rand"
 	"encoding/binary"
 	"fmt"
@@ -35,6 +36,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/netutil"
 )
 
@@ -65,49 +67,44 @@ const (
 type Table struct {
 	mutex   sync.Mutex        // protects buckets, bucket content, nursery, rand
 	buckets [nBuckets]*bucket // index of known nodes by distance
-	nursery []*Node           // bootstrap nodes
+	nursery []*node           // bootstrap nodes
 	rand    *mrand.Rand       // source of randomness, periodically reseeded
 	ips     netutil.DistinctNetSet
 
-	db         *nodeDB // database of known nodes
+	db         *enode.DB // database of known nodes
 	refreshReq chan chan struct{}
 	initDone   chan struct{}
 	closeReq   chan struct{}
 	closed     chan struct{}
 
-	nodeAddedHook func(*Node) // for testing
+	nodeAddedHook func(*node) // for testing
 
 	net  transport
-	self *Node // metadata of the local node
+	self *node // metadata of the local node
 }
 
 // transport is implemented by the UDP transport.
 // it is an interface so we can test without opening lots of UDP
 // sockets and without generating a private key.
 type transport interface {
-	ping(NodeID, *net.UDPAddr) error
+	ping(enode.ID, *net.UDPAddr) error
-	findnode(toid NodeID, addr *net.UDPAddr, target NodeID) ([]*Node, error)
+	findnode(toid enode.ID, addr *net.UDPAddr, target encPubkey) ([]*node, error)
 	close()
 }
 
 // bucket contains nodes, ordered by their last activity. the entry
 // that was most recently active is the first element in entries.
 type bucket struct {
-	entries      []*Node // live entries, sorted by time of last contact
+	entries      []*node // live entries, sorted by time of last contact
-	replacements []*Node // recently seen nodes to be used if revalidation fails
+	replacements []*node // recently seen nodes to be used if revalidation fails
 	ips          netutil.DistinctNetSet
 }
 
-func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string, bootnodes []*Node) (*Table, error) {
+func newTable(t transport, self *enode.Node, db *enode.DB, bootnodes []*enode.Node) (*Table, error) {
-	// If no node database was given, use an in-memory one
-	db, err := newNodeDB(nodeDBPath, nodeDBVersion, ourID)
-	if err != nil {
-		return nil, err
-	}
 	tab := &Table{
 		net:        t,
 		db:         db,
-		self:       NewNode(ourID, ourAddr.IP, uint16(ourAddr.Port), uint16(ourAddr.Port)),
+		self:       wrapNode(self),
 		refreshReq: make(chan chan struct{}),
 		initDone:   make(chan struct{}),
 		closeReq:   make(chan struct{}),
@@ -125,10 +122,7 @@ func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string
 	}
 	tab.seedRand()
 	tab.loadSeedNodes()
-	// Start the background expiration goroutine after loading seeds so that the search for
+
-	// seed nodes also considers older nodes that would otherwise be removed by the
-	// expiration.
-	tab.db.ensureExpirer()
 	go tab.loop()
 	return tab, nil
 }
@@ -143,15 +137,13 @@ func (tab *Table) seedRand() {
 }
 
 // Self returns the local node.
-// The returned node should not be modified by the caller.
+func (tab *Table) Self() *enode.Node {
-func (tab *Table) Self() *Node {
+	return unwrapNode(tab.self)
-	return tab.self
 }
 
-// ReadRandomNodes fills the given slice with random nodes from the
+// ReadRandomNodes fills the given slice with random nodes from the table. The results
-// table. It will not write the same node more than once. The nodes in
+// are guaranteed to be unique for a single invocation, no node will appear twice.
-// the slice are copies and can be modified by the caller.
+func (tab *Table) ReadRandomNodes(buf []*enode.Node) (n int) {
-func (tab *Table) ReadRandomNodes(buf []*Node) (n int) {
 	if !tab.isInitDone() {
 		return 0
 	}
@@ -159,7 +151,7 @@ func (tab *Table) ReadRandomNodes(buf []*Node) (n int) {
 	defer tab.mutex.Unlock()
 
 	// Find all non-empty buckets and get a fresh slice of their entries.
-	var buckets [][]*Node
+	var buckets [][]*node
 	for _, b := range &tab.buckets {
 		if len(b.entries) > 0 {
 			buckets = append(buckets, b.entries)
@@ -177,7 +169,7 @@ func (tab *Table) ReadRandomNodes(buf []*Node) (n int) {
 	var i, j int
 	for ; i < len(buf); i, j = i+1, (j+1)%len(buckets) {
 		b := buckets[j]
-		buf[i] = &(*b[0])
+		buf[i] = unwrapNode(b[0])
 		buckets[j] = b[1:]
 		if len(b) == 1 {
 			buckets = append(buckets[:j], buckets[j+1:]...)
@@ -202,20 +194,13 @@ func (tab *Table) Close() {
 // setFallbackNodes sets the initial points of contact. These nodes
 // are used to connect to the network if the table is empty and there
 // are no known nodes in the database.
-func (tab *Table) setFallbackNodes(nodes []*Node) error {
+func (tab *Table) setFallbackNodes(nodes []*enode.Node) error {
 	for _, n := range nodes {
-		if err := n.validateComplete(); err != nil {
+		if err := n.ValidateComplete(); err != nil {
-			return fmt.Errorf("bad bootstrap/fallback node %q (%v)", n, err)
+			return fmt.Errorf("bad bootstrap node %q: %v", n, err)
 		}
 	}
-	tab.nursery = make([]*Node, 0, len(nodes))
+	tab.nursery = wrapNodes(nodes)
-	for _, n := range nodes {
-		cpy := *n
-		// Recompute cpy.sha because the node might not have been
-		// created by NewNode or ParseNode.
-		cpy.sha = crypto.Keccak256Hash(n.ID[:])
-		tab.nursery = append(tab.nursery, &cpy)
-	}
 	return nil
 }
 
@@ -231,47 +216,48 @@ func (tab *Table) isInitDone() bool {
 
 // Resolve searches for a specific node with the given ID.
 // It returns nil if the node could not be found.
-func (tab *Table) Resolve(targetID NodeID) *Node {
+func (tab *Table) Resolve(n *enode.Node) *enode.Node {
 	// If the node is present in the local table, no
 	// network interaction is required.
-	hash := crypto.Keccak256Hash(targetID[:])
+	hash := n.ID()
 	tab.mutex.Lock()
 	cl := tab.closest(hash, 1)
 	tab.mutex.Unlock()
-	if len(cl.entries) > 0 && cl.entries[0].ID == targetID {
+	if len(cl.entries) > 0 && cl.entries[0].ID() == hash {
-		return cl.entries[0]
+		return unwrapNode(cl.entries[0])
 	}
 	// Otherwise, do a network lookup.
-	result := tab.Lookup(targetID)
+	result := tab.lookup(encodePubkey(n.Pubkey()), true)
 	for _, n := range result {
-		if n.ID == targetID {
+		if n.ID() == hash {
-			return n
+			return unwrapNode(n)
 		}
 	}
 	return nil
 }
 
-// Lookup performs a network search for nodes close
+// LookupRandom finds random nodes in the network.
-// to the given target. It approaches the target by querying
+func (tab *Table) LookupRandom() []*enode.Node {
-// nodes that are closer to it on each iteration.
+	var target encPubkey
-// The given target does not need to be an actual node
+	crand.Read(target[:])
-// identifier.
+	return unwrapNodes(tab.lookup(target, true))
-func (tab *Table) Lookup(targetID NodeID) []*Node {
-	return tab.lookup(targetID, true)
 }
 
-func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
+// lookup performs a network search for nodes close to the given target. It approaches the
+// target by querying nodes that are closer to it on each iteration. The given target does
+// not need to be an actual node identifier.
+func (tab *Table) lookup(targetKey encPubkey, refreshIfEmpty bool) []*node {
 	var (
-		target         = crypto.Keccak256Hash(targetID[:])
+		target         = enode.ID(crypto.Keccak256Hash(targetKey[:]))
-		asked          = make(map[NodeID]bool)
+		asked          = make(map[enode.ID]bool)
-		seen           = make(map[NodeID]bool)
+		seen           = make(map[enode.ID]bool)
-		reply          = make(chan []*Node, alpha)
+		reply          = make(chan []*node, alpha)
 		pendingQueries = 0
 		result         *nodesByDistance
 	)
 	// don't query further if we hit ourself.
 	// unlikely to happen often in practice.
-	asked[tab.self.ID] = true
+	asked[tab.self.ID()] = true
 
 	for {
 		tab.mutex.Lock()
@@ -293,10 +279,10 @@ func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
 		// ask the alpha closest nodes that we haven't asked yet
 		for i := 0; i < len(result.entries) && pendingQueries < alpha; i++ {
 			n := result.entries[i]
-			if !asked[n.ID] {
+			if !asked[n.ID()] {
-				asked[n.ID] = true
+				asked[n.ID()] = true
 				pendingQueries++
-				go tab.findnode(n, targetID, reply)
+				go tab.findnode(n, targetKey, reply)
 			}
 		}
 		if pendingQueries == 0 {
@@ -305,8 +291,8 @@ func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
 		}
 		// wait for the next reply
 		for _, n := range <-reply {
-			if n != nil && !seen[n.ID] {
+			if n != nil && !seen[n.ID()] {
-				seen[n.ID] = true
+				seen[n.ID()] = true
 				result.push(n, bucketSize)
 			}
 		}
@@ -315,19 +301,19 @@ func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
 	return result.entries
 }
 
-func (tab *Table) findnode(n *Node, targetID NodeID, reply chan<- []*Node) {
+func (tab *Table) findnode(n *node, targetKey encPubkey, reply chan<- []*node) {
-	fails := tab.db.findFails(n.ID)
+	fails := tab.db.FindFails(n.ID())
-	r, err := tab.net.findnode(n.ID, n.addr(), targetID)
+	r, err := tab.net.findnode(n.ID(), n.addr(), targetKey)
 	if err != nil || len(r) == 0 {
 		fails++
-		tab.db.updateFindFails(n.ID, fails)
+		tab.db.UpdateFindFails(n.ID(), fails)
-		log.Trace("Findnode failed", "id", n.ID, "failcount", fails, "err", err)
+		log.Trace("Findnode failed", "id", n.ID(), "failcount", fails, "err", err)
 		if fails >= maxFindnodeFailures {
-			log.Trace("Too many findnode failures, dropping", "id", n.ID, "failcount", fails)
+			log.Trace("Too many findnode failures, dropping", "id", n.ID(), "failcount", fails)
 			tab.delete(n)
 		}
 	} else if fails > 0 {
-		tab.db.updateFindFails(n.ID, fails-1)
+		tab.db.UpdateFindFails(n.ID(), fails-1)
 	}
 
 	// Grab as many nodes as possible. Some of them might not be alive anymore, but we'll
@@ -405,7 +391,6 @@ loop:
 	for _, ch := range waiting {
 		close(ch)
 	}
-	tab.db.close()
 	close(tab.closed)
 }
 
@@ -421,7 +406,11 @@ func (tab *Table) doRefresh(done chan struct{}) {
 	tab.loadSeedNodes()
 
 	// Run self lookup to discover new neighbor nodes.
-	tab.lookup(tab.self.ID, false)
+	// We can only do this if we have a secp256k1 identity.
+	var key ecdsa.PublicKey
+	if err := tab.self.Load((*enode.Secp256k1)(&key)); err == nil {
+		tab.lookup(encodePubkey(&key), false)
+	}
 
 	// The Kademlia paper specifies that the bucket refresh should
 	// perform a lookup in the least recently used bucket. We cannot
@@ -430,19 +419,19 @@ func (tab *Table) doRefresh(done chan struct{}) {
 	// sha3 preimage that falls into a chosen bucket.
 	// We perform a few lookups with a random target instead.
 	for i := 0; i < 3; i++ {
-		var target NodeID
+		var target encPubkey
 		crand.Read(target[:])
 		tab.lookup(target, false)
 	}
 }
 
 func (tab *Table) loadSeedNodes() {
-	seeds := tab.db.querySeeds(seedCount, seedMaxAge)
+	seeds := wrapNodes(tab.db.QuerySeeds(seedCount, seedMaxAge))
 	seeds = append(seeds, tab.nursery...)
 	for i := range seeds {
 		seed := seeds[i]
-		age := log.Lazy{Fn: func() interface{} { return time.Since(tab.db.lastPongReceived(seed.ID)) }}
+		age := log.Lazy{Fn: func() interface{} { return time.Since(tab.db.LastPongReceived(seed.ID())) }}
-		log.Debug("Found seed node in database", "id", seed.ID, "addr", seed.addr(), "age", age)
+		log.Debug("Found seed node in database", "id", seed.ID(), "addr", seed.addr(), "age", age)
 		tab.add(seed)
 	}
 }
@@ -459,28 +448,28 @@ func (tab *Table) doRevalidate(done chan<- struct{}) {
 	}
 
 	// Ping the selected node and wait for a pong.
-	err := tab.net.ping(last.ID, last.addr())
+	err := tab.net.ping(last.ID(), last.addr())
 
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()
 	b := tab.buckets[bi]
 	if err == nil {
 		// The node responded, move it to the front.
-		log.Trace("Revalidated node", "b", bi, "id", last.ID)
+		log.Debug("Revalidated node", "b", bi, "id", last.ID())
 		b.bump(last)
 		return
 	}
 	// No reply received, pick a replacement or delete the node if there aren't
 	// any replacements.
 	if r := tab.replace(b, last); r != nil {
-		log.Trace("Replaced dead node", "b", bi, "id", last.ID, "ip", last.IP, "r", r.ID, "rip", r.IP)
+		log.Debug("Replaced dead node", "b", bi, "id", last.ID(), "ip", last.IP(), "r", r.ID(), "rip", r.IP())
 	} else {
-		log.Trace("Removed dead node", "b", bi, "id", last.ID, "ip", last.IP)
+		log.Debug("Removed dead node", "b", bi, "id", last.ID(), "ip", last.IP())
 	}
 }
 
 // nodeToRevalidate returns the last node in a random, non-empty bucket.
-func (tab *Table) nodeToRevalidate() (n *Node, bi int) {
+func (tab *Table) nodeToRevalidate() (n *node, bi int) {
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()
 
@@ -511,7 +500,7 @@ func (tab *Table) copyLiveNodes() {
 	for _, b := range &tab.buckets {
 		for _, n := range b.entries {
 			if now.Sub(n.addedAt) >= seedMinTableTime {
-				tab.db.updateNode(n)
+				tab.db.UpdateNode(unwrapNode(n))
 			}
 		}
 	}
@@ -519,7 +508,7 @@ func (tab *Table) copyLiveNodes() {
 
 // closest returns the n nodes in the table that are closest to the
 // given id. The caller must hold tab.mutex.
-func (tab *Table) closest(target common.Hash, nresults int) *nodesByDistance {
+func (tab *Table) closest(target enode.ID, nresults int) *nodesByDistance {
 	// This is a very wasteful way to find the closest nodes but
 	// obviously correct. I believe that tree-based buckets would make
 	// this easier to implement efficiently.
@@ -540,8 +529,8 @@ func (tab *Table) len() (n int) {
 }
 
 // bucket returns the bucket for the given node ID hash.
-func (tab *Table) bucket(sha common.Hash) *bucket {
+func (tab *Table) bucket(id enode.ID) *bucket {
-	d := logdist(tab.self.sha, sha)
+	d := enode.LogDist(tab.self.ID(), id)
 	if d <= bucketMinDistance {
 		return tab.buckets[0]
 	}
@@ -553,11 +542,14 @@ func (tab *Table) bucket(sha common.Hash) *bucket {
 // least recently active node in the bucket does not respond to a ping packet.
 //
 // The caller must not hold tab.mutex.
-func (tab *Table) add(n *Node) {
+func (tab *Table) add(n *node) {
+	if n.ID() == tab.self.ID() {
+		return
+	}
+
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()
-
+	b := tab.bucket(n.ID())
-	b := tab.bucket(n.sha)
 	if !tab.bumpOrAdd(b, n) {
 		// Node is not in table. Add it to the replacement list.
 		tab.addReplacement(b, n)
@@ -570,7 +562,7 @@ func (tab *Table) add(n *Node) {
 // table could be filled by just sending ping repeatedly.
 //
 // The caller must not hold tab.mutex.
-func (tab *Table) addThroughPing(n *Node) {
+func (tab *Table) addThroughPing(n *node) {
 	if !tab.isInitDone() {
 		return
 	}
@@ -579,15 +571,15 @@ func (tab *Table) addThroughPing(n *Node) {
 
 // stuff adds nodes the table to the end of their corresponding bucket
 // if the bucket is not full. The caller must not hold tab.mutex.
-func (tab *Table) stuff(nodes []*Node) {
+func (tab *Table) stuff(nodes []*node) {
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()
 
 	for _, n := range nodes {
-		if n.ID == tab.self.ID {
+		if n.ID() == tab.self.ID() {
 			continue // don't add self
 		}
-		b := tab.bucket(n.sha)
+		b := tab.bucket(n.ID())
 		if len(b.entries) < bucketSize {
 			tab.bumpOrAdd(b, n)
 		}
@@ -595,11 +587,11 @@ func (tab *Table) stuff(nodes []*Node) {
 }
 
 // delete removes an entry from the node table. It is used to evacuate dead nodes.
-func (tab *Table) delete(node *Node) {
+func (tab *Table) delete(node *node) {
 	tab.mutex.Lock()
 	defer tab.mutex.Unlock()
 
-	tab.deleteInBucket(tab.bucket(node.sha), node)
+	tab.deleteInBucket(tab.bucket(node.ID()), node)
 }
 
 func (tab *Table) addIP(b *bucket, ip net.IP) bool {
@@ -626,27 +618,27 @@ func (tab *Table) removeIP(b *bucket, ip net.IP) {
 	b.ips.Remove(ip)
 }
 
-func (tab *Table) addReplacement(b *bucket, n *Node) {
+func (tab *Table) addReplacement(b *bucket, n *node) {
 	for _, e := range b.replacements {
-		if e.ID == n.ID {
+		if e.ID() == n.ID() {
 			return // already in list
 		}
 	}
-	if !tab.addIP(b, n.IP) {
+	if !tab.addIP(b, n.IP()) {
 		return
 	}
-	var removed *Node
+	var removed *node
 	b.replacements, removed = pushNode(b.replacements, n, maxReplacements)
 	if removed != nil {
-		tab.removeIP(b, removed.IP)
+		tab.removeIP(b, removed.IP())
 	}
 }
 
 // replace removes n from the replacement list and replaces 'last' with it if it is the
 // last entry in the bucket. If 'last' isn't the last entry, it has either been replaced
 // with someone else or became active.
-func (tab *Table) replace(b *bucket, last *Node) *Node {
+func (tab *Table) replace(b *bucket, last *node) *node {
-	if len(b.entries) == 0 || b.entries[len(b.entries)-1].ID != last.ID {
+	if len(b.entries) == 0 || b.entries[len(b.entries)-1].ID() != last.ID() {
 		// Entry has moved, don't replace it.
 		return nil
 	}
@@ -658,15 +650,15 @@ func (tab *Table) replace(b *bucket, last *Node) *Node {
 	r := b.replacements[tab.rand.Intn(len(b.replacements))]
 	b.replacements = deleteNode(b.replacements, r)
 	b.entries[len(b.entries)-1] = r
-	tab.removeIP(b, last.IP)
+	tab.removeIP(b, last.IP())
 	return r
 }
 
 // bump moves the given node to the front of the bucket entry list
 // if it is contained in that list.
-func (b *bucket) bump(n *Node) bool {
+func (b *bucket) bump(n *node) bool {
 	for i := range b.entries {
-		if b.entries[i].ID == n.ID {
+		if b.entries[i].ID() == n.ID() {
 			// move it to the front
 			copy(b.entries[1:], b.entries[:i])
 			b.entries[0] = n
@@ -678,11 +670,11 @@ func (b *bucket) bump(n *Node) bool {
 
 // bumpOrAdd moves n to the front of the bucket entry list or adds it if the list isn't
 // full. The return value is true if n is in the bucket.
-func (tab *Table) bumpOrAdd(b *bucket, n *Node) bool {
+func (tab *Table) bumpOrAdd(b *bucket, n *node) bool {
 	if b.bump(n) {
 		return true
 	}
-	if len(b.entries) >= bucketSize || !tab.addIP(b, n.IP) {
+	if len(b.entries) >= bucketSize || !tab.addIP(b, n.IP()) {
 		return false
 	}
 	b.entries, _ = pushNode(b.entries, n, bucketSize)
@@ -694,13 +686,13 @@ func (tab *Table) bumpOrAdd(b *bucket, n *Node) bool {
 	return true
 }
 
-func (tab *Table) deleteInBucket(b *bucket, n *Node) {
+func (tab *Table) deleteInBucket(b *bucket, n *node) {
 	b.entries = deleteNode(b.entries, n)
-	tab.removeIP(b, n.IP)
+	tab.removeIP(b, n.IP())
 }
 
 // pushNode adds n to the front of list, keeping at most max items.
-func pushNode(list []*Node, n *Node, max int) ([]*Node, *Node) {
+func pushNode(list []*node, n *node, max int) ([]*node, *node) {
 	if len(list) < max {
 		list = append(list, nil)
 	}
@@ -711,9 +703,9 @@ func pushNode(list []*Node, n *Node, max int) ([]*Node, *Node) {
 }
 
 // deleteNode removes n from list.
-func deleteNode(list []*Node, n *Node) []*Node {
+func deleteNode(list []*node, n *node) []*node {
 	for i := range list {
-		if list[i].ID == n.ID {
+		if list[i].ID() == n.ID() {
 			return append(list[:i], list[i+1:]...)
 		}
 	}
@@ -723,14 +715,14 @@ func deleteNode(list []*Node, n *Node) []*Node {
 // nodesByDistance is a list of nodes, ordered by
 // distance to target.
 type nodesByDistance struct {
-	entries []*Node
+	entries []*node
-	target  common.Hash
+	target  enode.ID
 }
 
 // push adds the given node to the list, keeping the total size below maxElems.
-func (h *nodesByDistance) push(n *Node, maxElems int) {
+func (h *nodesByDistance) push(n *node, maxElems int) {
 	ix := sort.Search(len(h.entries), func(i int) bool {
-		return distcmp(h.target, h.entries[i].sha, n.sha) > 0
+		return enode.DistCmp(h.target, h.entries[i].ID(), n.ID()) > 0
 	})
 	if len(h.entries) < maxElems {
 		h.entries = append(h.entries, n)

vendor/github.com/ethereum/go-ethereum/p2p/discover/udp.go

@@ -27,6 +27,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/nat"
 	"github.com/ethereum/go-ethereum/p2p/netutil"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -46,8 +47,9 @@ var (
 
 // Timeouts
 const (
-	respTimeout = 500 * time.Millisecond
+	respTimeout    = 500 * time.Millisecond
-	expiration  = 20 * time.Second
+	expiration     = 20 * time.Second
+	bondExpiration = 24 * time.Hour
 
 	ntpFailureThreshold = 32               // Continuous timeouts after which to check NTP
 	ntpWarningCooldown  = 10 * time.Minute // Minimum amount of time to pass before repeating NTP warning
@@ -87,7 +89,7 @@ type (
 
 	// findnode is a query for nodes close to the given target.
 	findnode struct {
-		Target     NodeID // doesn't need to be an actual public key
+		Target     encPubkey
 		Expiration uint64
 		// Ignore additional fields (for forward compatibility).
 		Rest []rlp.RawValue `rlp:"tail"`
@@ -105,7 +107,7 @@ type (
 		IP  net.IP // len 4 for IPv4 or 16 for IPv6
 		UDP uint16 // for discovery protocol
 		TCP uint16 // for RLPx protocol
-		ID  NodeID
+		ID  encPubkey
 	}
 
 	rpcEndpoint struct {
@@ -123,7 +125,7 @@ func makeEndpoint(addr *net.UDPAddr, tcpPort uint16) rpcEndpoint {
 	return rpcEndpoint{IP: ip, UDP: uint16(addr.Port), TCP: tcpPort}
 }
 
-func (t *udp) nodeFromRPC(sender *net.UDPAddr, rn rpcNode) (*Node, error) {
+func (t *udp) nodeFromRPC(sender *net.UDPAddr, rn rpcNode) (*node, error) {
 	if rn.UDP <= 1024 {
 		return nil, errors.New("low port")
 	}
@@ -133,17 +135,26 @@ func (t *udp) nodeFromRPC(sender *net.UDPAddr, rn rpcNode) (*Node, error) {
 	if t.netrestrict != nil && !t.netrestrict.Contains(rn.IP) {
 		return nil, errors.New("not contained in netrestrict whitelist")
 	}
-	n := NewNode(rn.ID, rn.IP, rn.UDP, rn.TCP)
+	key, err := decodePubkey(rn.ID)
-	err := n.validateComplete()
+	if err != nil {
+		return nil, err
+	}
+	n := wrapNode(enode.NewV4(key, rn.IP, int(rn.TCP), int(rn.UDP)))
+	err = n.ValidateComplete()
 	return n, err
 }
 
-func nodeToRPC(n *Node) rpcNode {
+func nodeToRPC(n *node) rpcNode {
-	return rpcNode{ID: n.ID, IP: n.IP, UDP: n.UDP, TCP: n.TCP}
+	var key ecdsa.PublicKey
+	var ekey encPubkey
+	if err := n.Load((*enode.Secp256k1)(&key)); err == nil {
+		ekey = encodePubkey(&key)
+	}
+	return rpcNode{ID: ekey, IP: n.IP(), UDP: uint16(n.UDP()), TCP: uint16(n.TCP())}
 }
 
 type packet interface {
-	handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error
+	handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error
 	name() string
 }
 
@@ -181,7 +192,7 @@ type udp struct {
 // to all the callback functions for that node.
 type pending struct {
 	// these fields must match in the reply.
-	from  NodeID
+	from  enode.ID
 	ptype byte
 
 	// time when the request must complete
@@ -199,7 +210,7 @@ type pending struct {
 }
 
 type reply struct {
-	from  NodeID
+	from  enode.ID
 	ptype byte
 	data  interface{}
 	// loop indicates whether there was
@@ -222,7 +233,7 @@ type Config struct {
 	AnnounceAddr *net.UDPAddr      // local address announced in the DHT
 	NodeDBPath   string            // if set, the node database is stored at this filesystem location
 	NetRestrict  *netutil.Netlist  // network whitelist
-	Bootnodes    []*Node           // list of bootstrap nodes
+	Bootnodes    []*enode.Node     // list of bootstrap nodes
 	Unhandled    chan<- ReadPacket // unhandled packets are sent on this channel
 }
 
@@ -237,6 +248,16 @@ func ListenUDP(c conn, cfg Config) (*Table, error) {
 }
 
 func newUDP(c conn, cfg Config) (*Table, *udp, error) {
+	realaddr := c.LocalAddr().(*net.UDPAddr)
+	if cfg.AnnounceAddr != nil {
+		realaddr = cfg.AnnounceAddr
+	}
+	self := enode.NewV4(&cfg.PrivateKey.PublicKey, realaddr.IP, realaddr.Port, realaddr.Port)
+	db, err := enode.OpenDB(cfg.NodeDBPath)
+	if err != nil {
+		return nil, nil, err
+	}
+
 	udp := &udp{
 		conn:        c,
 		priv:        cfg.PrivateKey,
@@ -245,13 +266,9 @@ func newUDP(c conn, cfg Config) (*Table, *udp, error) {
 		gotreply:    make(chan reply),
 		addpending:  make(chan *pending),
 	}
-	realaddr := c.LocalAddr().(*net.UDPAddr)
-	if cfg.AnnounceAddr != nil {
-		realaddr = cfg.AnnounceAddr
-	}
 	// TODO: separate TCP port
 	udp.ourEndpoint = makeEndpoint(realaddr, uint16(realaddr.Port))
-	tab, err := newTable(udp, PubkeyID(&cfg.PrivateKey.PublicKey), realaddr, cfg.NodeDBPath, cfg.Bootnodes)
+	tab, err := newTable(udp, self, db, cfg.Bootnodes)
 	if err != nil {
 		return nil, nil, err
 	}
@@ -265,17 +282,18 @@ func newUDP(c conn, cfg Config) (*Table, *udp, error) {
 func (t *udp) close() {
 	close(t.closing)
 	t.conn.Close()
+	t.db.Close()
 	// TODO: wait for the loops to end.
 }
 
 // ping sends a ping message to the given node and waits for a reply.
-func (t *udp) ping(toid NodeID, toaddr *net.UDPAddr) error {
+func (t *udp) ping(toid enode.ID, toaddr *net.UDPAddr) error {
 	return <-t.sendPing(toid, toaddr, nil)
 }
 
 // sendPing sends a ping message to the given node and invokes the callback
 // when the reply arrives.
-func (t *udp) sendPing(toid NodeID, toaddr *net.UDPAddr, callback func()) <-chan error {
+func (t *udp) sendPing(toid enode.ID, toaddr *net.UDPAddr, callback func()) <-chan error {
 	req := &ping{
 		Version:    4,
 		From:       t.ourEndpoint,
@@ -299,21 +317,21 @@ func (t *udp) sendPing(toid NodeID, toaddr *net.UDPAddr, callback func()) <-chan
 	return errc
 }
 
-func (t *udp) waitping(from NodeID) error {
+func (t *udp) waitping(from enode.ID) error {
 	return <-t.pending(from, pingPacket, func(interface{}) bool { return true })
 }
 
 // findnode sends a findnode request to the given node and waits until
 // the node has sent up to k neighbors.
-func (t *udp) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node, error) {
+func (t *udp) findnode(toid enode.ID, toaddr *net.UDPAddr, target encPubkey) ([]*node, error) {
 	// If we haven't seen a ping from the destination node for a while, it won't remember
 	// our endpoint proof and reject findnode. Solicit a ping first.
-	if time.Since(t.db.lastPingReceived(toid)) > nodeDBNodeExpiration {
+	if time.Since(t.db.LastPingReceived(toid)) > bondExpiration {
 		t.ping(toid, toaddr)
 		t.waitping(toid)
 	}
 
-	nodes := make([]*Node, 0, bucketSize)
+	nodes := make([]*node, 0, bucketSize)
 	nreceived := 0
 	errc := t.pending(toid, neighborsPacket, func(r interface{}) bool {
 		reply := r.(*neighbors)
@@ -337,7 +355,7 @@ func (t *udp) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node
 
 // pending adds a reply callback to the pending reply queue.
 // see the documentation of type pending for a detailed explanation.
-func (t *udp) pending(id NodeID, ptype byte, callback func(interface{}) bool) <-chan error {
+func (t *udp) pending(id enode.ID, ptype byte, callback func(interface{}) bool) <-chan error {
 	ch := make(chan error, 1)
 	p := &pending{from: id, ptype: ptype, callback: callback, errc: ch}
 	select {
@@ -349,7 +367,7 @@ func (t *udp) pending(id NodeID, ptype byte, callback func(interface{}) bool) <-
 	return ch
 }
 
-func (t *udp) handleReply(from NodeID, ptype byte, req packet) bool {
+func (t *udp) handleReply(from enode.ID, ptype byte, req packet) bool {
 	matched := make(chan bool, 1)
 	select {
 	case t.gotreply <- reply{from, ptype, req, matched}:
@@ -563,19 +581,20 @@ func (t *udp) handlePacket(from *net.UDPAddr, buf []byte) error {
 	return err
 }
 
-func decodePacket(buf []byte) (packet, NodeID, []byte, error) {
+func decodePacket(buf []byte) (packet, encPubkey, []byte, error) {
 	if len(buf) < headSize+1 {
-		return nil, NodeID{}, nil, errPacketTooSmall
+		return nil, encPubkey{}, nil, errPacketTooSmall
 	}
 	hash, sig, sigdata := buf[:macSize], buf[macSize:headSize], buf[headSize:]
 	shouldhash := crypto.Keccak256(buf[macSize:])
 	if !bytes.Equal(hash, shouldhash) {
-		return nil, NodeID{}, nil, errBadHash
+		return nil, encPubkey{}, nil, errBadHash
 	}
-	fromID, err := recoverNodeID(crypto.Keccak256(buf[headSize:]), sig)
+	fromKey, err := recoverNodeKey(crypto.Keccak256(buf[headSize:]), sig)
 	if err != nil {
-		return nil, NodeID{}, hash, err
+		return nil, fromKey, hash, err
 	}
+
 	var req packet
 	switch ptype := sigdata[0]; ptype {
 	case pingPacket:
@@ -587,56 +606,59 @@ func decodePacket(buf []byte) (packet, NodeID, []byte, error) {
 	case neighborsPacket:
 		req = new(neighbors)
 	default:
-		return nil, fromID, hash, fmt.Errorf("unknown type: %d", ptype)
+		return nil, fromKey, hash, fmt.Errorf("unknown type: %d", ptype)
 	}
 	s := rlp.NewStream(bytes.NewReader(sigdata[1:]), 0)
 	err = s.Decode(req)
-	return req, fromID, hash, err
+	return req, fromKey, hash, err
 }
 
-func (req *ping) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error {
+func (req *ping) handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error {
 	if expired(req.Expiration) {
 		return errExpired
 	}
+	key, err := decodePubkey(fromKey)
+	if err != nil {
+		return fmt.Errorf("invalid public key: %v", err)
+	}
 	t.send(from, pongPacket, &pong{
 		To:         makeEndpoint(from, req.From.TCP),
 		ReplyTok:   mac,
 		Expiration: uint64(time.Now().Add(expiration).Unix()),
 	})
-	t.handleReply(fromID, pingPacket, req)
+	n := wrapNode(enode.NewV4(key, from.IP, int(req.From.TCP), from.Port))
-
+	t.handleReply(n.ID(), pingPacket, req)
-	// Add the node to the table. Before doing so, ensure that we have a recent enough pong
+	if time.Since(t.db.LastPongReceived(n.ID())) > bondExpiration {
-	// recorded in the database so their findnode requests will be accepted later.
+		t.sendPing(n.ID(), from, func() { t.addThroughPing(n) })
-	n := NewNode(fromID, from.IP, uint16(from.Port), req.From.TCP)
-	if time.Since(t.db.lastPongReceived(fromID)) > nodeDBNodeExpiration {
-		t.sendPing(fromID, from, func() { t.addThroughPing(n) })
 	} else {
 		t.addThroughPing(n)
 	}
-	t.db.updateLastPingReceived(fromID, time.Now())
+	t.db.UpdateLastPingReceived(n.ID(), time.Now())
 	return nil
 }
 
 func (req *ping) name() string { return "PING/v4" }
 
-func (req *pong) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error {
+func (req *pong) handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error {
 	if expired(req.Expiration) {
 		return errExpired
 	}
+	fromID := fromKey.id()
 	if !t.handleReply(fromID, pongPacket, req) {
 		return errUnsolicitedReply
 	}
-	t.db.updateLastPongReceived(fromID, time.Now())
+	t.db.UpdateLastPongReceived(fromID, time.Now())
 	return nil
 }
 
 func (req *pong) name() string { return "PONG/v4" }
 
-func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error {
+func (req *findnode) handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error {
 	if expired(req.Expiration) {
 		return errExpired
 	}
-	if !t.db.hasBond(fromID) {
+	fromID := fromKey.id()
+	if time.Since(t.db.LastPongReceived(fromID)) > bondExpiration {
 		// No endpoint proof pong exists, we don't process the packet. This prevents an
 		// attack vector where the discovery protocol could be used to amplify traffic in a
 		// DDOS attack. A malicious actor would send a findnode request with the IP address
@@ -645,7 +667,7 @@ func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte
 		// findnode) to the victim.
 		return errUnknownNode
 	}
-	target := crypto.Keccak256Hash(req.Target[:])
+	target := enode.ID(crypto.Keccak256Hash(req.Target[:]))
 	t.mutex.Lock()
 	closest := t.closest(target, bucketSize).entries
 	t.mutex.Unlock()
@@ -655,7 +677,7 @@ func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte
 	// Send neighbors in chunks with at most maxNeighbors per packet
 	// to stay below the 1280 byte limit.
 	for _, n := range closest {
-		if netutil.CheckRelayIP(from.IP, n.IP) == nil {
+		if netutil.CheckRelayIP(from.IP, n.IP()) == nil {
 			p.Nodes = append(p.Nodes, nodeToRPC(n))
 		}
 		if len(p.Nodes) == maxNeighbors {
@@ -672,11 +694,11 @@ func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte
 
 func (req *findnode) name() string { return "FINDNODE/v4" }
 
-func (req *neighbors) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte) error {
+func (req *neighbors) handle(t *udp, from *net.UDPAddr, fromKey encPubkey, mac []byte) error {
 	if expired(req.Expiration) {
 		return errExpired
 	}
-	if !t.handleReply(fromID, neighborsPacket, req) {
+	if !t.handleReply(fromKey.id(), neighborsPacket, req) {
 		return errUnsolicitedReply
 	}
 	return nil