params: release Geth v1.8.5 - Dirty Derivative²

DialContext allows users to pass a Context object for cancellation.
Close closes the underlying RPC connection.

Makefile

@@ -37,6 +37,9 @@ ios:
 test: all
 	build/env.sh go run build/ci.go test
 
+lint: ## Run linters.
+	build/env.sh go run build/ci.go lint
+
 clean:
 	rm -fr build/_workspace/pkg/ $(GOBIN)/*
 

VERSION

@@ -1 +1 @@
-1.8.4
+1.8.5

accounts/usbwallet/ledger.go

@@ -53,11 +53,9 @@ const (
 	ledgerOpGetConfiguration ledgerOpcode = 0x06 // Returns specific wallet application configuration
 
 	ledgerP1DirectlyFetchAddress    ledgerParam1 = 0x00 // Return address directly from the wallet
-	ledgerP1ConfirmFetchAddress     ledgerParam1 = 0x01 // Require a user confirmation before returning the address
 	ledgerP1InitTransactionData     ledgerParam1 = 0x00 // First transaction data block for signing
 	ledgerP1ContTransactionData     ledgerParam1 = 0x80 // Subsequent transaction data block for signing
 	ledgerP2DiscardAddressChainCode ledgerParam2 = 0x00 // Do not return the chain code along with the address
-	ledgerP2ReturnAddressChainCode  ledgerParam2 = 0x01 // Require a user confirmation before returning the address
 )
 
 // errLedgerReplyInvalidHeader is the error message returned by a Ledger data exchange

build/ci.go

@@ -329,7 +329,10 @@ func doLint(cmdline []string) {
 	// Run fast linters batched together
 	configs := []string{
 		"--vendor",
+		"--tests",
 		"--disable-all",
+		"--enable=goimports",
+		"--enable=varcheck",
 		"--enable=vet",
 		"--enable=gofmt",
 		"--enable=misspell",
@@ -340,7 +343,7 @@ func doLint(cmdline []string) {
 
 	// Run slow linters one by one
 	for _, linter := range []string{"unconvert", "gosimple"} {
-		configs = []string{"--vendor", "--deadline=10m", "--disable-all", "--enable=" + linter}
+		configs = []string{"--vendor", "--tests", "--deadline=10m", "--disable-all", "--enable=" + linter}
 		build.MustRunCommand(filepath.Join(GOBIN, "gometalinter.v2"), append(configs, packages...)...)
 	}
 }

build/goimports.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+find_files() {
+  find . -not \( \
+      \( \
+        -wholename '.github' \
+        -o -wholename './build/_workspace' \
+        -o -wholename './build/bin' \
+        -o -wholename './crypto/bn256' \
+        -o -wholename '*/vendor/*' \
+      \) -prune \
+    \) -name '*.go'
+}
+
+GOFMT="gofmt -s -w";
+GOIMPORTS="goimports -w";
+find_files | xargs $GOFMT;
+find_files | xargs $GOIMPORTS;

cmd/clef/main.go

@@ -23,17 +23,18 @@ import (
 	"context"
 	"crypto/rand"
 	"crypto/sha256"
+	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"os"
+	"os/signal"
 	"os/user"
 	"path/filepath"
 	"runtime"
 	"strings"
 
-	"encoding/hex"
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -44,7 +45,6 @@ import (
 	"github.com/ethereum/go-ethereum/signer/rules"
 	"github.com/ethereum/go-ethereum/signer/storage"
 	"gopkg.in/urfave/cli.v1"
-	"os/signal"
 )
 
 // ExternalApiVersion -- see extapi_changelog.md
@@ -435,7 +435,7 @@ func signer(c *cli.Context) error {
 			ipcApiUrl = filepath.Join(configDir, "clef.ipc")
 		}
 
-		listener, _, err := rpc.StartIPCEndpoint(func() bool { return true }, ipcApiUrl, rpcApi)
+		listener, _, err := rpc.StartIPCEndpoint(ipcApiUrl, rpcApi)
 		if err != nil {
 			utils.Fatalf("Could not start IPC api: %v", err)
 		}

cmd/ethkey/main.go

@@ -53,10 +53,6 @@ var (
 		Name:  "json",
 		Usage: "output JSON instead of human-readable format",
 	}
-	messageFlag = cli.StringFlag{
-		Name:  "message",
-		Usage: "the file that contains the message to sign/verify",
-	}
 )
 
 func main() {

cmd/geth/main.go

@@ -241,7 +241,7 @@ func startNode(ctx *cli.Context, stack *node.Node) {
 	stack.AccountManager().Subscribe(events)
 
 	go func() {
-		// Create an chain state reader for self-derivation
+		// Create a chain state reader for self-derivation
 		rpcClient, err := stack.Attach()
 		if err != nil {
 			utils.Fatalf("Failed to attach to self: %v", err)

cmd/puppeth/module_dashboard.go

@@ -683,7 +683,7 @@ func deployDashboard(client *sshClient, network string, conf *config, config *da
 	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
 }
 
-// dashboardInfos is returned from an dashboard status check to allow reporting
+// dashboardInfos is returned from a dashboard status check to allow reporting
 // various configuration parameters.
 type dashboardInfos struct {
 	host    string

cmd/puppeth/module_explorer.go

@@ -168,7 +168,7 @@ func (info *explorerInfos) Report() map[string]string {
 	return report
 }
 
-// checkExplorer does a health-check against an block explorer server to verify
+// checkExplorer does a health-check against a block explorer server to verify
 // whether it's running, and if yes, whether it's responsive.
 func checkExplorer(client *sshClient, network string) (*explorerInfos, error) {
 	// Inspect a possible block explorer container on the host

cmd/puppeth/module_faucet.go

@@ -30,7 +30,7 @@ import (
 	"github.com/ethereum/go-ethereum/log"
 )
 
-// faucetDockerfile is the Dockerfile required to build an faucet container to
+// faucetDockerfile is the Dockerfile required to build a faucet container to
 // grant crypto tokens based on GitHub authentications.
 var faucetDockerfile = `
 FROM ethereum/client-go:alltools-latest
@@ -138,7 +138,7 @@ func deployFaucet(client *sshClient, network string, bootnodes []string, config
 	return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate", workdir, network))
 }
 
-// faucetInfos is returned from an faucet status check to allow reporting various
+// faucetInfos is returned from a faucet status check to allow reporting various
 // configuration parameters.
 type faucetInfos struct {
 	node          *nodeInfos
@@ -181,7 +181,7 @@ func (info *faucetInfos) Report() map[string]string {
 	return report
 }
 
-// checkFaucet does a health-check against an faucet server to verify whether
+// checkFaucet does a health-check against a faucet server to verify whether
 // it's running, and if yes, gathering a collection of useful infos about it.
 func checkFaucet(client *sshClient, network string) (*faucetInfos, error) {
 	// Inspect a possible faucet container on the host

cmd/puppeth/module_node.go

@@ -198,7 +198,7 @@ func (info *nodeInfos) Report() map[string]string {
 	return report
 }
 
-// checkNode does a health-check against an boot or seal node server to verify
+// checkNode does a health-check against a boot or seal node server to verify
 // whether it's running, and if yes, whether it's responsive.
 func checkNode(client *sshClient, network string, boot bool) (*nodeInfos, error) {
 	kind := "bootnode"

cmd/utils/flags.go

@@ -64,7 +64,7 @@ var (
 {{if .cmd.Description}}{{.cmd.Description}}
 {{end}}{{if .cmd.Subcommands}}
 SUBCOMMANDS:
-	{{range .cmd.Subcommands}}{{.cmd.Name}}{{with .cmd.ShortName}}, {{.cmd}}{{end}}{{ "\t" }}{{.cmd.Usage}}
+	{{range .cmd.Subcommands}}{{.Name}}{{with .ShortName}}, {{.}}{{end}}{{ "\t" }}{{.Usage}}
 	{{end}}{{end}}{{if .categorizedFlags}}
 {{range $idx, $categorized := .categorizedFlags}}{{$categorized.Name}} OPTIONS:
 {{range $categorized.Flags}}{{"\t"}}{{.}}

common/types.go

@@ -18,15 +18,15 @@ package common
 
 import (
 	"encoding/hex"
+	"encoding/json"
 	"fmt"
 	"math/big"
 	"math/rand"
 	"reflect"
+	"strings"
 
-	"encoding/json"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/crypto/sha3"
-	"strings"
 )
 
 const (

consensus/consensus.go

@@ -18,12 +18,13 @@
 package consensus
 
 import (
+	"math/big"
+
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rpc"
-	"math/big"
 )
 
 // ChainReader defines a small collection of methods needed to access the local

console/bridge.go

@@ -87,7 +87,7 @@ func (b *bridge) NewAccount(call otto.FunctionCall) (response otto.Value) {
 // OpenWallet is a wrapper around personal.openWallet which can interpret and
 // react to certain error messages, such as the Trezor PIN matrix request.
 func (b *bridge) OpenWallet(call otto.FunctionCall) (response otto.Value) {
-	// Make sure we have an wallet specified to open
+	// Make sure we have a wallet specified to open
 	if !call.Argument(0).IsString() {
 		throwJSException("first argument must be the wallet URL to open")
 	}

core/asm/compiler.go

@@ -17,7 +17,6 @@
 package asm
 
 import (
-	"errors"
 	"fmt"
 	"math/big"
 	"os"
@@ -237,19 +236,16 @@ func (c *Compiler) pushBin(v interface{}) {
 // isPush returns whether the string op is either any of
 // push(N).
 func isPush(op string) bool {
-	return op == "push"
+	return strings.ToUpper(op) == "PUSH"
 }
 
 // isJump returns whether the string op is jump(i)
 func isJump(op string) bool {
-	return op == "jumpi" || op == "jump"
+	return strings.ToUpper(op) == "JUMPI" || strings.ToUpper(op) == "JUMP"
 }
 
 // toBinary converts text to a vm.OpCode
 func toBinary(text string) vm.OpCode {
-	if isPush(text) {
-		text = "push1"
-	}
 	return vm.StringToOp(strings.ToUpper(text))
 }
 
@@ -264,11 +260,6 @@ func (err compileError) Error() string {
 	return fmt.Sprintf("%d syntax error: unexpected %v, expected %v", err.lineno, err.got, err.want)
 }
 
-var (
-	errExpBol            = errors.New("expected beginning of line")
-	errExpElementOrLabel = errors.New("expected beginning of line")
-)
-
 func compileErr(c token, got, want string) error {
 	return compileError{
 		got:    got,

core/bloombits/matcher.go

@@ -392,7 +392,7 @@ func (m *Matcher) distributor(dist chan *request, session *MatcherSession) {
 		shutdown = session.quit // Shutdown request channel, will gracefully wait for pending requests
 	)
 
-	// assign is a helper method fo try to assign a pending bit an an actively
+	// assign is a helper method fo try to assign a pending bit an actively
 	// listening servicer, or schedule it up for later when one arrives.
 	assign := func(bit uint) {
 		select {

core/tx_pool.go

@@ -38,8 +38,6 @@ import (
 const (
 	// chainHeadChanSize is the size of channel listening to ChainHeadEvent.
 	chainHeadChanSize = 10
-	// rmTxChanSize is the size of channel listening to RemovedTransactionEvent.
-	rmTxChanSize = 10
 )
 
 var (

core/types/transaction.go

@@ -33,7 +33,6 @@ import (
 
 var (
 	ErrInvalidSig = errors.New("invalid transaction v, r, s values")
-	errNoSigner   = errors.New("missing signing methods")
 )
 
 // deriveSigner makes a *best* guess about which signer to use.

core/vm/instructions.go

@@ -31,7 +31,6 @@ import (
 var (
 	bigZero                  = new(big.Int)
 	tt255                    = math.BigPow(2, 255)
-	tt256                    = math.BigPow(2, 256)
 	errWriteProtection       = errors.New("evm: write protection")
 	errReturnDataOutOfBounds = errors.New("evm: return data out of bounds")
 	errExecutionReverted     = errors.New("evm: execution reverted")

crypto/bn256/cloudflare/example_test.go

@@ -6,9 +6,12 @@ package bn256
 
 import (
 	"crypto/rand"
+	"testing"
+
+	"github.com/stretchr/testify/require"
 )
 
-func ExamplePair() {
+func TestExamplePair(t *testing.T) {
 	// This implements the tripartite Diffie-Hellman algorithm from "A One
 	// Round Protocol for Tripartite Diffie-Hellman", A. Joux.
 	// http://www.springerlink.com/content/cddc57yyva0hburb/fulltext.pdf
@@ -40,4 +43,9 @@ func ExamplePair() {
 	k3.ScalarMult(k3, c)
 
 	// k1, k2 and k3 will all be equal.
+
+	require.Equal(t, k1, k2)
+	require.Equal(t, k1, k3)
+
+	require.Equal(t, len(np), 4) //Avoid gometalinter varcheck err on np
 }

eth/downloader/api.go

@@ -51,7 +51,7 @@ func NewPublicDownloaderAPI(d *Downloader, m *event.TypeMux) *PublicDownloaderAP
 	return api
 }
 
-// eventLoop runs an loop until the event mux closes. It will install and uninstall new
+// eventLoop runs a loop until the event mux closes. It will install and uninstall new
 // sync subscriptions and broadcasts sync status updates to the installed sync subscriptions.
 func (api *PublicDownloaderAPI) eventLoop() {
 	var (

eth/downloader/downloader.go

@@ -306,7 +306,7 @@ func (d *Downloader) UnregisterPeer(id string) error {
 	d.cancelLock.RUnlock()
 
 	if master {
-		d.Cancel()
+		d.cancel()
 	}
 	return nil
 }
@@ -501,8 +501,10 @@ func (d *Downloader) spawnSync(fetchers []func() error) error {
 	return err
 }
 
-// Cancel cancels all of the operations and resets the queue.
-func (d *Downloader) Cancel() {
+// cancel aborts all of the operations and resets the queue. However, cancel does
+// not wait for the running download goroutines to finish. This method should be
+// used when cancelling the downloads from inside the downloader.
+func (d *Downloader) cancel() {
 	// Close the current cancel channel
 	d.cancelLock.Lock()
 	if d.cancelCh != nil {
@@ -514,6 +516,12 @@ func (d *Downloader) Cancel() {
 		}
 	}
 	d.cancelLock.Unlock()
+}
+
+// Cancel aborts all of the operations and waits for all download goroutines to
+// finish before returning.
+func (d *Downloader) Cancel() {
+	d.cancel()
 	d.cancelWg.Wait()
 }
 

eth/fetcher/fetcher_test.go

@@ -198,7 +198,7 @@ func (f *fetcherTester) makeBodyFetcher(peer string, blocks map[common.Hash]*typ
 	}
 }
 
-// verifyFetchingEvent verifies that one single event arrive on an fetching channel.
+// verifyFetchingEvent verifies that one single event arrive on a fetching channel.
 func verifyFetchingEvent(t *testing.T, fetching chan []common.Hash, arrive bool) {
 	if arrive {
 		select {

ethclient/ethclient.go

@@ -39,7 +39,11 @@ type Client struct {
 
 // Dial connects a client to the given URL.
 func Dial(rawurl string) (*Client, error) {
-	c, err := rpc.Dial(rawurl)
+	return DialContext(context.Background(), rawurl)
+}
+
+func DialContext(ctx context.Context, rawurl string) (*Client, error) {
+	c, err := rpc.DialContext(ctx, rawurl)
 	if err != nil {
 		return nil, err
 	}
@@ -51,6 +55,10 @@ func NewClient(c *rpc.Client) *Client {
 	return &Client{c}
 }
 
+func (ec *Client) Close() {
+	ec.c.Close()
+}
+
 // Blockchain Access
 
 // BlockByHash returns the given full block.

internal/jsre/deps/web3.js

@@ -2193,7 +2193,7 @@ var toWei = function(number, unit) {
 };
 
 /**
- * Takes an input and transforms it into an bignumber
+ * Takes an input and transforms it into a bignumber
  *
  * @method toBigNumber
  * @param {Number|String|BigNumber} a number, string, HEX string or BigNumber

les/bloombits.go

@@ -72,13 +72,3 @@ func (eth *LightEthereum) startBloomHandlers() {
 		}()
 	}
 }
-
-const (
-	// bloomConfirms is the number of confirmation blocks before a bloom section is
-	// considered probably final and its rotated bits are calculated.
-	bloomConfirms = 256
-
-	// bloomThrottling is the time to wait between processing two consecutive index
-	// sections. It's useful during chain upgrades to prevent disk overload.
-	bloomThrottling = 100 * time.Millisecond
-)

les/serverpool.go

@@ -73,7 +73,6 @@ const (
 	// and a short term value which is adjusted exponentially with a factor of
 	// pstatRecentAdjust with each dial/connection and also returned exponentially
 	// to the average with the time constant pstatReturnToMeanTC
-	pstatRecentAdjust   = 0.1
 	pstatReturnToMeanTC = time.Hour
 	// node address selection weight is dropped by a factor of exp(-addrFailDropLn) after
 	// each unsuccessful connection (restored after a successful one)
@@ -83,9 +82,6 @@ const (
 	responseScoreTC = time.Millisecond * 100
 	delayScoreTC    = time.Second * 5
 	timeoutPow      = 10
-	// peerSelectMinWeight is added to calculated weights at request peer selection
-	// to give poorly performing peers a little chance of coming back
-	peerSelectMinWeight = 0.005
 	// initStatsWeight is used to initialize previously unknown peers with good
 	// statistics to give a chance to prove themselves
 	initStatsWeight = 1

les/sync.go

@@ -25,11 +25,6 @@ import (
 	"github.com/ethereum/go-ethereum/light"
 )
 
-const (
-	//forceSyncCycle      = 10 * time.Second // Time interval to force syncs, even if few peers are available
-	minDesiredPeerCount = 5 // Amount of peers desired to start syncing
-)
-
 // syncer is responsible for periodically synchronising with the network, both
 // downloading hashes and blocks as well as handling the announcement handler.
 func (pm *ProtocolManager) syncer() {

mobile/types.go

@@ -80,7 +80,7 @@ func (h *Header) EncodeRLP() ([]byte, error) {
 	return rlp.EncodeToBytes(h.header)
 }
 
-// NewHeaderFromJSON parses a header from an JSON data dump.
+// NewHeaderFromJSON parses a header from a JSON data dump.
 func NewHeaderFromJSON(data string) (*Header, error) {
 	h := &Header{
 		header: new(types.Header),
@@ -91,7 +91,7 @@ func NewHeaderFromJSON(data string) (*Header, error) {
 	return h, nil
 }
 
-// EncodeJSON encodes a header into an JSON data dump.
+// EncodeJSON encodes a header into a JSON data dump.
 func (h *Header) EncodeJSON() (string, error) {
 	data, err := json.Marshal(h.header)
 	return string(data), err
@@ -151,7 +151,7 @@ func (b *Block) EncodeRLP() ([]byte, error) {
 	return rlp.EncodeToBytes(b.block)
 }
 
-// NewBlockFromJSON parses a block from an JSON data dump.
+// NewBlockFromJSON parses a block from a JSON data dump.
 func NewBlockFromJSON(data string) (*Block, error) {
 	b := &Block{
 		block: new(types.Block),
@@ -162,7 +162,7 @@ func NewBlockFromJSON(data string) (*Block, error) {
 	return b, nil
 }
 
-// EncodeJSON encodes a block into an JSON data dump.
+// EncodeJSON encodes a block into a JSON data dump.
 func (b *Block) EncodeJSON() (string, error) {
 	data, err := json.Marshal(b.block)
 	return string(data), err
@@ -220,7 +220,7 @@ func (tx *Transaction) EncodeRLP() ([]byte, error) {
 	return rlp.EncodeToBytes(tx.tx)
 }
 
-// NewTransactionFromJSON parses a transaction from an JSON data dump.
+// NewTransactionFromJSON parses a transaction from a JSON data dump.
 func NewTransactionFromJSON(data string) (*Transaction, error) {
 	tx := &Transaction{
 		tx: new(types.Transaction),
@@ -231,7 +231,7 @@ func NewTransactionFromJSON(data string) (*Transaction, error) {
 	return tx, nil
 }
 
-// EncodeJSON encodes a transaction into an JSON data dump.
+// EncodeJSON encodes a transaction into a JSON data dump.
 func (tx *Transaction) EncodeJSON() (string, error) {
 	data, err := json.Marshal(tx.tx)
 	return string(data), err
@@ -312,7 +312,7 @@ func (r *Receipt) EncodeRLP() ([]byte, error) {
 	return rlp.EncodeToBytes(r.receipt)
 }
 
-// NewReceiptFromJSON parses a transaction receipt from an JSON data dump.
+// NewReceiptFromJSON parses a transaction receipt from a JSON data dump.
 func NewReceiptFromJSON(data string) (*Receipt, error) {
 	r := &Receipt{
 		receipt: new(types.Receipt),
@@ -323,7 +323,7 @@ func NewReceiptFromJSON(data string) (*Receipt, error) {
 	return r, nil
 }
 
-// EncodeJSON encodes a transaction receipt into an JSON data dump.
+// EncodeJSON encodes a transaction receipt into a JSON data dump.
 func (r *Receipt) EncodeJSON() (string, error) {
 	data, err := rlp.EncodeToBytes(r.receipt)
 	return string(data), err

node/config.go

@@ -209,7 +209,7 @@ func DefaultHTTPEndpoint() string {
 	return config.HTTPEndpoint()
 }
 
-// WSEndpoint resolves an websocket endpoint based on the configured host interface
+// WSEndpoint resolves a websocket endpoint based on the configured host interface
 // and port parameters.
 func (c *Config) WSEndpoint() string {
 	if c.WSHost == "" {

node/node.go

@@ -303,23 +303,13 @@ func (n *Node) stopInProc() {
 
 // startIPC initializes and starts the IPC RPC endpoint.
 func (n *Node) startIPC(apis []rpc.API) error {
-	// Short circuit if the IPC endpoint isn't being exposed
 	if n.ipcEndpoint == "" {
-		return nil
-
+		return nil // IPC disabled.
 	}
-	isClosed := func() bool {
-		n.lock.RLock()
-		defer n.lock.RUnlock()
-		return n.ipcListener == nil
-	}
-
-	listener, handler, err := rpc.StartIPCEndpoint(isClosed, n.ipcEndpoint, apis)
+	listener, handler, err := rpc.StartIPCEndpoint(n.ipcEndpoint, apis)
 	if err != nil {
 		return err
 	}
-
-	// All listeners booted successfully
 	n.ipcListener = listener
 	n.ipcHandler = handler
 	n.log.Info("IPC endpoint opened", "url", n.ipcEndpoint)

p2p/discover/udp.go

@@ -49,7 +49,6 @@ var (
 // Timeouts
 const (
 	respTimeout = 500 * time.Millisecond
-	sendTimeout = 500 * time.Millisecond
 	expiration  = 20 * time.Second
 
 	ntpFailureThreshold = 32               // Continuous timeouts after which to check NTP

p2p/discv5/net.go

@@ -36,7 +36,6 @@ import (
 var (
 	errInvalidEvent = errors.New("invalid in current state")
 	errNoQuery      = errors.New("no pending query")
-	errWrongAddress = errors.New("unknown sender address")
 )
 
 const (
@@ -828,11 +827,10 @@ type nodeEvent uint
 //go:generate stringer -type=nodeEvent
 
 const (
-	invalidEvent nodeEvent = iota // zero is reserved
 
 	// Packet type events.
 	// These correspond to packet types in the UDP protocol.
-	pingPacket
+	pingPacket = iota + 1
 	pongPacket
 	findnodePacket
 	neighborsPacket

p2p/discv5/nodeevent_string.go

@@ -4,24 +4,14 @@ package discv5
 
 import "strconv"
 
-const (
-	_nodeEvent_name_0 = "invalidEventpingPacketpongPacketfindnodePacketneighborsPacketfindnodeHashPackettopicRegisterPackettopicQueryPackettopicNodesPacket"
-	_nodeEvent_name_1 = "pongTimeoutpingTimeoutneighboursTimeout"
-)
+const _nodeEvent_name = "pongTimeoutpingTimeoutneighboursTimeout"
 
-var (
-	_nodeEvent_index_0 = [...]uint8{0, 12, 22, 32, 46, 61, 79, 98, 114, 130}
-	_nodeEvent_index_1 = [...]uint8{0, 11, 22, 39}
-)
+var _nodeEvent_index = [...]uint8{0, 11, 22, 39}
 
 func (i nodeEvent) String() string {
-	switch {
-	case 0 <= i && i <= 8:
-		return _nodeEvent_name_0[_nodeEvent_index_0[i]:_nodeEvent_index_0[i+1]]
-	case 265 <= i && i <= 267:
-		i -= 265
-		return _nodeEvent_name_1[_nodeEvent_index_1[i]:_nodeEvent_index_1[i+1]]
-	default:
-		return "nodeEvent(" + strconv.FormatInt(int64(i), 10) + ")"
+	i -= 264
+	if i >= nodeEvent(len(_nodeEvent_index)-1) {
+		return "nodeEvent(" + strconv.FormatInt(int64(i+264), 10) + ")"
 	}
+	return _nodeEvent_name[_nodeEvent_index[i]:_nodeEvent_index[i+1]]
 }

p2p/discv5/table.go

@@ -38,7 +38,6 @@ const (
 	hashBits   = len(common.Hash{}) * 8
 	nBuckets   = hashBits + 1 // Number of buckets
 
-	maxBondingPingPongs = 16
 	maxFindnodeFailures = 5
 )
 

p2p/discv5/udp.go

@@ -36,25 +36,17 @@ const Version = 4
 
 // Errors
 var (
-	errPacketTooSmall   = errors.New("too small")
-	errBadPrefix        = errors.New("bad prefix")
-	errExpired          = errors.New("expired")
-	errUnsolicitedReply = errors.New("unsolicited reply")
-	errUnknownNode      = errors.New("unknown node")
-	errTimeout          = errors.New("RPC timeout")
-	errClockWarp        = errors.New("reply deadline too far in the future")
-	errClosed           = errors.New("socket closed")
+	errPacketTooSmall = errors.New("too small")
+	errBadPrefix      = errors.New("bad prefix")
+	errTimeout        = errors.New("RPC timeout")
 )
 
 // Timeouts
 const (
 	respTimeout = 500 * time.Millisecond
-	queryDelay  = 1000 * time.Millisecond
 	expiration  = 20 * time.Second
 
-	ntpFailureThreshold = 32               // Continuous timeouts after which to check NTP
-	ntpWarningCooldown  = 10 * time.Minute // Minimum amount of time to pass before repeating NTP warning
-	driftThreshold      = 10 * time.Second // Allowed clock drift before warning user
+	driftThreshold = 10 * time.Second // Allowed clock drift before warning user
 )
 
 // RPC request structures

p2p/discv5/udp_test.go

@@ -24,7 +24,6 @@ import (
 	"reflect"
 	"sync"
 	"testing"
-	"time"
 
 	"github.com/davecgh/go-spew/spew"
 	"github.com/ethereum/go-ethereum/common"
@@ -38,11 +37,7 @@ func init() {
 
 // shared test variables
 var (
-	futureExp          = uint64(time.Now().Add(10 * time.Hour).Unix())
-	testTarget         = NodeID{0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1}
-	testRemote         = rpcEndpoint{IP: net.ParseIP("1.1.1.1").To4(), UDP: 1, TCP: 2}
-	testLocalAnnounced = rpcEndpoint{IP: net.ParseIP("2.2.2.2").To4(), UDP: 3, TCP: 4}
-	testLocal          = rpcEndpoint{IP: net.ParseIP("3.3.3.3").To4(), UDP: 5, TCP: 6}
+	testLocal = rpcEndpoint{IP: net.ParseIP("3.3.3.3").To4(), UDP: 5, TCP: 6}
 )
 
 // type udpTest struct {

p2p/enr/enr.go

@@ -46,7 +46,6 @@ const ID_SECP256k1_KECCAK = ID("secp256k1-keccak") // the default identity schem
 
 var (
 	errNoID           = errors.New("unknown or unspecified identity scheme")
-	errInvalidSigsize = errors.New("invalid signature size")
 	errInvalidSig     = errors.New("invalid signature")
 	errNotSorted      = errors.New("record key/value pairs are not sorted by key")
 	errDuplicateKey   = errors.New("record contains duplicate key")

p2p/peer.go

@@ -47,8 +47,6 @@ const (
 	discMsg      = 0x01
 	pingMsg      = 0x02
 	pongMsg      = 0x03
-	getPeersMsg  = 0x04
-	peersMsg     = 0x05
 )
 
 // protoHandshake is the RLP structure of the protocol handshake.

params/version.go

@@ -23,7 +23,7 @@ import (
 const (
 	VersionMajor = 1        // Major version component of the current release
 	VersionMinor = 8        // Minor version component of the current release
-	VersionPatch = 4        // Patch version component of the current release
+	VersionPatch = 5        // Patch version component of the current release
 	VersionMeta  = "stable" // Version metadata to append to the version string
 )
 

rpc/client.go

@@ -25,6 +25,7 @@ import (
 	"fmt"
 	"net"
 	"net/url"
+	"os"
 	"reflect"
 	"strconv"
 	"strings"
@@ -33,7 +34,6 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum/log"
-	"os"
 )
 
 var (

rpc/doc.go

@@ -92,7 +92,7 @@ An example method:
 Subscriptions are deleted when:
  - the user sends an unsubscribe request
  - the connection which was used to create the subscription is closed. This can be initiated
-   by the client and server. The server will close the connection on an write error or when
+   by the client and server. The server will close the connection on a write error or when
    the queue of buffered notifications gets too big.
 */
 package rpc

rpc/endpoints.go

@@ -17,8 +17,9 @@
 package rpc
 
 import (
-	"github.com/ethereum/go-ethereum/log"
 	"net"
+
+	"github.com/ethereum/go-ethereum/log"
 )
 
 // StartHTTPEndpoint starts the HTTP RPC endpoint, configured with cors/vhosts/modules
@@ -81,9 +82,9 @@ func StartWSEndpoint(endpoint string, apis []API, modules []string, wsOrigins []
 
 }
 
-// StartIPCEndpoint starts an IPC endpoint
-func StartIPCEndpoint(isClosedFn func() bool, ipcEndpoint string, apis []API) (net.Listener, *Server, error) {
-	// Register all the APIs exposed by the services
+// StartIPCEndpoint starts an IPC endpoint.
+func StartIPCEndpoint(ipcEndpoint string, apis []API) (net.Listener, *Server, error) {
+	// Register all the APIs exposed by the services.
 	handler := NewServer()
 	for _, api := range apis {
 		if err := handler.RegisterName(api.Namespace, api.Service); err != nil {
@@ -91,30 +92,11 @@ func StartIPCEndpoint(isClosedFn func() bool, ipcEndpoint string, apis []API) (n
 		}
 		log.Debug("IPC registered", "namespace", api.Namespace)
 	}
-	// All APIs registered, start the IPC listener
-	var (
-		listener net.Listener
-		err      error
-	)
-	if listener, err = CreateIPCListener(ipcEndpoint); err != nil {
+	// All APIs registered, start the IPC listener.
+	listener, err := ipcListen(ipcEndpoint)
+	if err != nil {
 		return nil, nil, err
 	}
-	go func() {
-		for {
-			conn, err := listener.Accept()
-			if err != nil {
-				// Terminate if the listener was closed
-				if isClosedFn() {
-					log.Info("IPC closed", "err", err)
-				} else {
-					// Not closed, just some error; report and continue
-					log.Error("IPC accept failed", "err", err)
-				}
-				continue
-			}
-			go handler.ServeCodec(NewJSONCodec(conn), OptionMethodInvocation|OptionSubscriptions)
-		}
-	}()
-
+	go handler.ServeListener(listener)
 	return listener, handler, nil
 }

rpc/http.go

@@ -90,10 +90,19 @@ func DialHTTP(endpoint string) (*Client, error) {
 func (c *Client) sendHTTP(ctx context.Context, op *requestOp, msg interface{}) error {
 	hc := c.writeConn.(*httpConn)
 	respBody, err := hc.doRequest(ctx, msg)
+	if respBody != nil {
+		defer respBody.Close()
+	}
+
 	if err != nil {
+		if respBody != nil {
+			buf := new(bytes.Buffer)
+			if _, err2 := buf.ReadFrom(respBody); err2 == nil {
+				return fmt.Errorf("%v %v", err, buf.String())
+			}
+		}
 		return err
 	}
-	defer respBody.Close()
 	var respmsg jsonrpcMessage
 	if err := json.NewDecoder(respBody).Decode(&respmsg); err != nil {
 		return err
@@ -132,6 +141,9 @@ func (hc *httpConn) doRequest(ctx context.Context, msg interface{}) (io.ReadClos
 	if err != nil {
 		return nil, err
 	}
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		return resp.Body, errors.New(resp.Status)
+	}
 	return resp.Body, nil
 }
 

rpc/ipc.go

@@ -18,26 +18,23 @@ package rpc
 
 import (
 	"context"
-	"fmt"
 	"net"
 
 	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/p2p/netutil"
 )
 
-// CreateIPCListener creates an listener, on Unix platforms this is a unix socket, on
-// Windows this is a named pipe
-func CreateIPCListener(endpoint string) (net.Listener, error) {
-	return ipcListen(endpoint)
-}
-
 // ServeListener accepts connections on l, serving JSON-RPC on them.
 func (srv *Server) ServeListener(l net.Listener) error {
 	for {
 		conn, err := l.Accept()
-		if err != nil {
+		if netutil.IsTemporaryError(err) {
+			log.Warn("RPC accept error", "err", err)
+			continue
+		} else if err != nil {
 			return err
 		}
-		log.Trace(fmt.Sprint("accepted conn", conn.RemoteAddr()))
+		log.Trace("Accepted connection", "addr", conn.RemoteAddr())
 		go srv.ServeCodec(NewJSONCodec(conn), OptionMethodInvocation|OptionSubscriptions)
 	}
 }

swarm/fuse/fuse_dir.go

@@ -19,12 +19,13 @@
 package fuse
 
 import (
-	"bazil.org/fuse"
-	"bazil.org/fuse/fs"
-	"golang.org/x/net/context"
 	"os"
 	"path/filepath"
 	"sync"
+
+	"bazil.org/fuse"
+	"bazil.org/fuse/fs"
+	"golang.org/x/net/context"
 )
 
 var (

swarm/fuse/swarmfs.go

@@ -17,9 +17,10 @@
 package fuse
 
 import (
-	"github.com/ethereum/go-ethereum/swarm/api"
 	"sync"
 	"time"
+
+	"github.com/ethereum/go-ethereum/swarm/api"
 )
 
 const (

swarm/network/kademlia/address.go

@@ -51,7 +51,7 @@ func (a Address) Bin() string {
 /*
 Proximity(x, y) returns the proximity order of the MSB distance between x and y
 
-The distance metric MSB(x, y) of two equal length byte sequences x an y is the
+The distance metric MSB(x, y) of two equal length byte sequences x and y is the
 value of the binary integer cast of the x^y, ie., x and y bitwise xor-ed.
 the binary cast is big endian: most significant bit first (=MSB).
 

swarm/storage/dbstore.go

@@ -54,7 +54,6 @@ const (
 
 	// key prefixes for leveldb storage
 	kpIndex = 0
-	kpData  = 1
 )
 
 var (

swarm/storage/netstore.go

@@ -83,11 +83,6 @@ func NewNetStore(hash SwarmHasher, lstore *LocalStore, cloud CloudStore, params
 	}
 }
 
-const (
-	// maximum number of peers that a retrieved message is delivered to
-	requesterCount = 3
-)
-
 var (
 	// timeout interval before retrieval is timed out
 	searchTimeout = 3 * time.Second

vendor/github.com/elastic/gosigar/CHANGELOG.md

@@ -8,10 +8,21 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
+- Added missing runtime import for FreeBSD. #104
+
 ### Changed
 
 ### Deprecated
 
+## [0.9.0]
+
+### Added
+- Added support for huge TLB pages on Linux #97  
+- Added support for big endian platform #100 
+
+### Fixed
+- Add missing method for OpenBSD #99
+
 ## [0.8.0]
 
 ### Added

vendor/github.com/elastic/gosigar/README.md

@@ -26,6 +26,7 @@ The features vary by operating system.
 | FDUsage         |   X   |        |         |         |    X    |
 | FileSystemList  |   X   |    X   |    X    |    X    |    X    |
 | FileSystemUsage |   X   |    X   |    X    |    X    |    X    |
+| HugeTLBPages    |   X   |        |         |         |         |
 | LoadAverage     |   X   |    X   |         |    X    |    X    |
 | Mem             |   X   |    X   |    X    |    X    |    X    |
 | ProcArgs        |   X   |    X   |    X    |         |    X    |

vendor/github.com/elastic/gosigar/concrete_sigar.go

@@ -62,6 +62,12 @@ func (c *ConcreteSigar) GetSwap() (Swap, error) {
 	return s, err
 }
 
+func (c *ConcreteSigar) GetHugeTLBPages() (HugeTLBPages, error) {
+	p := HugeTLBPages{}
+	err := p.Get()
+	return p, err
+}
+
 func (c *ConcreteSigar) GetFileSystemUsage(path string) (FileSystemUsage, error) {
 	f := FileSystemUsage{}
 	err := f.Get(path)

vendor/github.com/elastic/gosigar/sigar_darwin.go

@@ -91,6 +91,10 @@ func (self *Swap) Get() error {
 	return nil
 }
 
+func (self *HugeTLBPages) Get() error {
+	return ErrNotImplemented{runtime.GOOS}
+}
+
 func (self *Cpu) Get() error {
 	var count C.mach_msg_type_number_t = C.HOST_CPU_LOAD_INFO_COUNT
 	var cpuload C.host_cpu_load_info_data_t

vendor/github.com/elastic/gosigar/sigar_freebsd.go

@@ -4,6 +4,7 @@ package gosigar
 
 import (
 	"io/ioutil"
+	"runtime"
 	"strconv"
 	"strings"
 	"unsafe"
@@ -97,6 +98,10 @@ func (self *ProcFDUsage) Get(pid int) error {
 	return nil
 }
 
+func (self *HugeTLBPages) Get() error {
+	return ErrNotImplemented{runtime.GOOS}
+}
+
 func parseCpuStat(self *Cpu, line string) error {
 	fields := strings.Fields(line)
 

vendor/github.com/elastic/gosigar/sigar_interface.go

@@ -26,6 +26,7 @@ type Sigar interface {
 	GetLoadAverage() (LoadAverage, error)
 	GetMem() (Mem, error)
 	GetSwap() (Swap, error)
+	GetHugeTLBPages(HugeTLBPages, error)
 	GetFileSystemUsage(string) (FileSystemUsage, error)
 	GetFDUsage() (FDUsage, error)
 	GetRusage(who int) (Rusage, error)
@@ -82,6 +83,15 @@ type Swap struct {
 	Free  uint64
 }
 
+type HugeTLBPages struct {
+	Total              uint64
+	Free               uint64
+	Reserved           uint64
+	Surplus            uint64
+	DefaultSize        uint64
+	TotalAllocatedSize uint64
+}
+
 type CpuList struct {
 	List []Cpu
 }

vendor/github.com/elastic/gosigar/sigar_linux.go

@@ -45,6 +45,30 @@ func (self *FDUsage) Get() error {
 	})
 }
 
+func (self *HugeTLBPages) Get() error {
+	table, err := parseMeminfo()
+	if err != nil {
+		return err
+	}
+
+	self.Total, _ = table["HugePages_Total"]
+	self.Free, _ = table["HugePages_Free"]
+	self.Reserved, _ = table["HugePages_Rsvd"]
+	self.Surplus, _ = table["HugePages_Surp"]
+	self.DefaultSize, _ = table["Hugepagesize"]
+
+	if totalSize, found := table["Hugetlb"]; found {
+		self.TotalAllocatedSize = totalSize
+	} else {
+		// If Hugetlb is not present, or huge pages of different sizes
+		// are used, this figure can be unaccurate.
+		// TODO (jsoriano): Extract information from /sys/kernel/mm/hugepages too
+		self.TotalAllocatedSize = (self.Total - self.Free + self.Reserved) * self.DefaultSize
+	}
+
+	return nil
+}
+
 func (self *ProcFDUsage) Get(pid int) error {
 	err := readFile(procFileName(pid, "limits"), func(line string) bool {
 		if strings.HasPrefix(line, "Max open files") {

vendor/github.com/elastic/gosigar/sigar_linux_common.go

@@ -379,12 +379,16 @@ func parseMeminfo() (map[string]uint64, error) {
 			return true // skip on errors
 		}
 
-		num := strings.TrimLeft(fields[1], " ")
-		val, err := strtoull(strings.Fields(num)[0])
+		valueUnit := strings.Fields(fields[1])
+		value, err := strtoull(valueUnit[0])
 		if err != nil {
 			return true // skip on errors
 		}
-		table[fields[0]] = val * 1024 //in bytes
+
+		if len(valueUnit) > 1 && valueUnit[1] == "kB" {
+			value *= 1024
+		}
+		table[fields[0]] = value
 
 		return true
 	})
@@ -420,8 +424,18 @@ func procFileName(pid int, name string) string {
 	return Procd + "/" + strconv.Itoa(pid) + "/" + name
 }
 
-func readProcFile(pid int, name string) ([]byte, error) {
+func readProcFile(pid int, name string) (content []byte, err error) {
 	path := procFileName(pid, name)
+
+	// Panics have been reported when reading proc files, let's recover and
+	// report the path if this happens
+	// See https://github.com/elastic/beats/issues/6692
+	defer func() {
+		if r := recover(); r != nil {
+			content = nil
+			err = fmt.Errorf("recovered panic when reading proc file '%s': %v", path, r)
+		}
+	}()
 	contents, err := ioutil.ReadFile(path)
 
 	if err != nil {

vendor/github.com/elastic/gosigar/sigar_openbsd.go

@@ -294,6 +294,10 @@ func (self *Swap) Get() error {
 	return nil
 }
 
+func (self *HugeTLBPages) Get() error {
+	return ErrNotImplemented{runtime.GOOS}
+}
+
 func (self *Cpu) Get() error {
 	load := [C.CPUSTATES]C.long{C.CP_USER, C.CP_NICE, C.CP_SYS, C.CP_INTR, C.CP_IDLE}
 
@@ -381,6 +385,10 @@ func (self *ProcFDUsage) Get(pid int) error {
 	return ErrNotImplemented{runtime.GOOS}
 }
 
+func (self *Rusage) Get(pid int) error {
+	return ErrNotImplemented{runtime.GOOS}
+}
+
 func fillCpu(cpu *Cpu, load [C.CPUSTATES]C.long) {
 	cpu.User = uint64(load[0])
 	cpu.Nice = uint64(load[1])

vendor/github.com/elastic/gosigar/sigar_stub.go

@@ -22,6 +22,10 @@ func (s *Swap) Get() error {
 	return ErrNotImplemented{runtime.GOOS}
 }
 
+func (s *HugeTLBPages) Get() error {
+	return ErrNotImplemented{runtime.GOOS}
+}
+
 func (f *FDUsage) Get() error {
 	return ErrNotImplemented{runtime.GOOS}
 }

vendor/github.com/elastic/gosigar/sigar_windows.go

@@ -120,6 +120,10 @@ func (self *Swap) Get() error {
 	return nil
 }
 
+func (self *HugeTLBPages) Get() error {
+	return ErrNotImplemented{runtime.GOOS}
+}
+
 func (self *Cpu) Get() error {
 	idle, kernel, user, err := windows.GetSystemTimes()
 	if err != nil {

vendor/vendor.json

@@ -93,10 +93,10 @@
 			"revisionTime": "2016-05-12T03:30:02Z"
 		},
 		{
-			"checksumSHA1": "Fc8BCxCoQ7ZmghDT6X1cASR10Ec=",
+			"checksumSHA1": "jElNoLEe7m/iaoF1vYIHyNaS2SE=",
 			"path": "github.com/elastic/gosigar",
-			"revision": "a3814ce5008e612a0c6d027608b54e1d0d9a5613",
-			"revisionTime": "2018-01-22T22:25:45Z"
+			"revision": "37f05ff46ffa7a825d1b24cf2b62d4a4c1a9d2e8",
+			"revisionTime": "2018-03-30T10:04:40Z"
 		},
 		{
 			"checksumSHA1": "qDsgp2kAeI9nhj565HUScaUyjU4=",

whisper/whisperv5/api.go

@@ -32,10 +32,6 @@ import (
 	"github.com/ethereum/go-ethereum/rpc"
 )
 
-const (
-	filterTimeout = 300 // filters are considered timeout out after filterTimeout seconds
-)
-
 var (
 	ErrSymAsym              = errors.New("specify either a symmetric or an asymmetric key")
 	ErrInvalidSymmetricKey  = errors.New("invalid symmetric key")

whisper/whisperv6/api.go

@@ -32,10 +32,6 @@ import (
 	"github.com/ethereum/go-ethereum/rpc"
 )
 
-const (
-	filterTimeout = 300 // filters are considered timeout out after filterTimeout seconds
-)
-
 // List of errors
 var (
 	ErrSymAsym              = errors.New("specify either a symmetric or an asymmetric key")
@@ -231,8 +227,9 @@ type newMessageOverride struct {
 	Padding   hexutil.Bytes
 }
 
-// Post a message on the Whisper network.
-func (api *PublicWhisperAPI) Post(ctx context.Context, req NewMessage) (bool, error) {
+// Post posts a message on the Whisper network.
+// returns the hash of the message in case of success.
+func (api *PublicWhisperAPI) Post(ctx context.Context, req NewMessage) (hexutil.Bytes, error) {
 	var (
 		symKeyGiven = len(req.SymKeyID) > 0
 		pubKeyGiven = len(req.PublicKey) > 0
@@ -241,7 +238,7 @@ func (api *PublicWhisperAPI) Post(ctx context.Context, req NewMessage) (bool, er
 
 	// user must specify either a symmetric or an asymmetric key
 	if (symKeyGiven && pubKeyGiven) || (!symKeyGiven && !pubKeyGiven) {
-		return false, ErrSymAsym
+		return nil, ErrSymAsym
 	}
 
 	params := &MessageParams{
@@ -256,20 +253,20 @@ func (api *PublicWhisperAPI) Post(ctx context.Context, req NewMessage) (bool, er
 	// Set key that is used to sign the message
 	if len(req.Sig) > 0 {
 		if params.Src, err = api.w.GetPrivateKey(req.Sig); err != nil {
-			return false, err
+			return nil, err
 		}
 	}
 
 	// Set symmetric key that is used to encrypt the message
 	if symKeyGiven {
 		if params.Topic == (TopicType{}) { // topics are mandatory with symmetric encryption
-			return false, ErrNoTopics
+			return nil, ErrNoTopics
 		}
 		if params.KeySym, err = api.w.GetSymKey(req.SymKeyID); err != nil {
-			return false, err
+			return nil, err
 		}
 		if !validateDataIntegrity(params.KeySym, aesKeyLength) {
-			return false, ErrInvalidSymmetricKey
+			return nil, ErrInvalidSymmetricKey
 		}
 	}
 
@@ -277,36 +274,47 @@ func (api *PublicWhisperAPI) Post(ctx context.Context, req NewMessage) (bool, er
 	if pubKeyGiven {
 		params.Dst = crypto.ToECDSAPub(req.PublicKey)
 		if !ValidatePublicKey(params.Dst) {
-			return false, ErrInvalidPublicKey
+			return nil, ErrInvalidPublicKey
 		}
 	}
 
 	// encrypt and sent message
 	whisperMsg, err := NewSentMessage(params)
 	if err != nil {
-		return false, err
+		return nil, err
 	}
 
+	var result []byte
 	env, err := whisperMsg.Wrap(params)
 	if err != nil {
-		return false, err
+		return nil, err
 	}
 
 	// send to specific node (skip PoW check)
 	if len(req.TargetPeer) > 0 {
 		n, err := discover.ParseNode(req.TargetPeer)
 		if err != nil {
-			return false, fmt.Errorf("failed to parse target peer: %s", err)
+			return nil, fmt.Errorf("failed to parse target peer: %s", err)
 		}
-		return true, api.w.SendP2PMessage(n.ID[:], env)
+		err = api.w.SendP2PMessage(n.ID[:], env)
+		if err == nil {
+			hash := env.Hash()
+			result = hash[:]
+		}
+		return result, err
 	}
 
 	// ensure that the message PoW meets the node's minimum accepted PoW
 	if req.PowTarget < api.w.MinPow() {
-		return false, ErrTooLowPoW
+		return nil, ErrTooLowPoW
 	}
 
-	return true, api.w.Send(env)
+	err = api.w.Send(env)
+	if err == nil {
+		hash := env.Hash()
+		result = hash[:]
+	}
+	return result, err
 }
 
 //go:generate gencodec -type Criteria -field-override criteriaOverride -out gen_criteria_json.go