Fixes tendermint/tendermint#3522

* OriginalAddr -> SocketAddr

OriginalAddr records the originally dialed address for outbound peers,
rather than the peer's self reported address. For inbound peers, it was
nil. Here, we rename it to SocketAddr and for inbound peers, set it to
the RemoteAddr of the connection.

* use SocketAddr

Numerous places in the code call peer.NodeInfo().NetAddress().
However, this call to NetAddress() may perform a DNS lookup if the
reported NodeInfo.ListenAddr includes a name. Failure of this lookup
returns a nil address, which can lead to panics in the code.

Instead, call peer.SocketAddr() to return the static address of the
connection.

* remove nodeInfo.NetAddress()

Expose `transport.NetAddress()`, a static result determined
when the transport is created. Removing NetAddress() from the nodeInfo
prevents accidental DNS lookups.

* fixes from review

* linter

* fixes from review

node/node.go

@@ -489,7 +489,7 @@ func NewNode(config *cfg.Config,
 	addrBook := pex.NewAddrBook(config.P2P.AddrBookFile(), config.P2P.AddrBookStrict)
 
 	// Add ourselves to addrbook to prevent dialing ourselves
-	addrBook.AddOurAddress(nodeInfo.NetAddress())
+	addrBook.AddOurAddress(sw.NetAddress())
 
 	addrBook.SetLogger(p2pLogger.With("book", config.P2P.AddrBookFile()))
 	if config.P2P.PexReactor {

p2p/mock/peer.go

@@ -63,6 +63,6 @@ func (mp *Peer) Set(key string, value interface{}) {
 	mp.kv[key] = value
 }
 func (mp *Peer) RemoteIP() net.IP            { return mp.ip }
-func (mp *Peer) OriginalAddr() *p2p.NetAddress { return mp.addr }
+func (mp *Peer) SocketAddr() *p2p.NetAddress { return mp.addr }
 func (mp *Peer) RemoteAddr() net.Addr        { return &net.TCPAddr{IP: mp.ip, Port: 8800} }
 func (mp *Peer) CloseConn() error            { return nil }

p2p/node_info.go

@@ -23,14 +23,8 @@ func MaxNodeInfoSize() int {
 // NodeInfo exposes basic info of a node
 // and determines if we're compatible.
 type NodeInfo interface {
-	nodeInfoAddress
-	nodeInfoTransport
-}
-
-// nodeInfoAddress exposes just the core info of a node.
-type nodeInfoAddress interface {
 	ID() ID
-	NetAddress() *NetAddress
+	nodeInfoTransport
 }
 
 // nodeInfoTransport validates a nodeInfo and checks

p2p/peer.go

@@ -29,7 +29,7 @@ type Peer interface {
 
 	NodeInfo() NodeInfo // peer's info
 	Status() tmconn.ConnectionStatus
-	OriginalAddr() *NetAddress // original address for outbound peers
+	SocketAddr() *NetAddress // actual address of the socket
 
 	Send(byte, []byte) bool
 	TrySend(byte, []byte) bool
@@ -46,7 +46,7 @@ type peerConn struct {
 	persistent bool
 	conn       net.Conn // source connection
 
-	originalAddr *NetAddress // nil for inbound connections
+	socketAddr *NetAddress
 
 	// cached RemoteIP()
 	ip net.IP
@@ -55,14 +55,14 @@ type peerConn struct {
 func newPeerConn(
 	outbound, persistent bool,
 	conn net.Conn,
-	originalAddr *NetAddress,
+	socketAddr *NetAddress,
 ) peerConn {
 
 	return peerConn{
 		outbound:   outbound,
 		persistent: persistent,
 		conn:       conn,
-		originalAddr: originalAddr,
+		socketAddr: socketAddr,
 	}
 }
 
@@ -223,13 +223,12 @@ func (p *peer) NodeInfo() NodeInfo {
 	return p.nodeInfo
 }
 
-// OriginalAddr returns the original address, which was used to connect with
+// SocketAddr returns the address of the socket.
-// the peer. Returns nil for inbound peers.
+// For outbound peers, it's the address dialed (after DNS resolution).
-func (p *peer) OriginalAddr() *NetAddress {
+// For inbound peers, it's the address returned by the underlying connection
-	if p.peerConn.outbound {
+// (not what's reported in the peer's NodeInfo).
-		return p.peerConn.originalAddr
+func (p *peer) SocketAddr() *NetAddress {
-	}
+	return p.peerConn.socketAddr
-	return nil
 }
 
 // Status returns the peer's ConnectionStatus.

p2p/peer_set_test.go

@@ -29,7 +29,7 @@ func (mp *mockPeer) IsPersistent() bool                      { return true }
 func (mp *mockPeer) Get(s string) interface{}                { return s }
 func (mp *mockPeer) Set(string, interface{})                 {}
 func (mp *mockPeer) RemoteIP() net.IP                        { return mp.ip }
-func (mp *mockPeer) OriginalAddr() *NetAddress               { return nil }
+func (mp *mockPeer) SocketAddr() *NetAddress                 { return nil }
 func (mp *mockPeer) RemoteAddr() net.Addr                    { return &net.TCPAddr{IP: mp.ip, Port: 8800} }
 func (mp *mockPeer) CloseConn() error                        { return nil }
 

p2p/peer_test.go

@@ -109,25 +109,27 @@ func testOutboundPeerConn(
 	persistent bool,
 	ourNodePrivKey crypto.PrivKey,
 ) (peerConn, error) {
+
+	var pc peerConn
 	conn, err := testDial(addr, config)
 	if err != nil {
-		return peerConn{}, cmn.ErrorWrap(err, "Error creating peer")
+		return pc, cmn.ErrorWrap(err, "Error creating peer")
 	}
 
-	pc, err := testPeerConn(conn, config, true, persistent, ourNodePrivKey, addr)
+	pc, err = testPeerConn(conn, config, true, persistent, ourNodePrivKey, addr)
 	if err != nil {
 		if cerr := conn.Close(); cerr != nil {
-			return peerConn{}, cmn.ErrorWrap(err, cerr.Error())
+			return pc, cmn.ErrorWrap(err, cerr.Error())
 		}
-		return peerConn{}, err
+		return pc, err
 	}
 
 	// ensure dialed ID matches connection ID
 	if addr.ID != pc.ID() {
 		if cerr := conn.Close(); cerr != nil {
-			return peerConn{}, cmn.ErrorWrap(err, cerr.Error())
+			return pc, cmn.ErrorWrap(err, cerr.Error())
 		}
-		return peerConn{}, ErrSwitchAuthenticationFailure{addr, pc.ID()}
+		return pc, ErrSwitchAuthenticationFailure{addr, pc.ID()}
 	}
 
 	return pc, nil

p2p/pex/pex_reactor.go

@@ -167,7 +167,7 @@ func (r *PEXReactor) AddPeer(p Peer) {
 		}
 	} else {
 		// inbound peer is its own source
-		addr := p.NodeInfo().NetAddress()
+		addr := p.SocketAddr()
 		src := addr
 
 		// add to book. dont RequestAddrs right away because
@@ -309,7 +309,7 @@ func (r *PEXReactor) ReceiveAddrs(addrs []*p2p.NetAddress, src Peer) error {
 	}
 	r.requestsSent.Delete(id)
 
-	srcAddr := src.NodeInfo().NetAddress()
+	srcAddr := src.SocketAddr()
 	for _, netAddr := range addrs {
 		// Validate netAddr. Disconnect from a peer if it sends us invalid data.
 		if netAddr == nil {

p2p/pex/pex_reactor_test.go

@@ -96,7 +96,7 @@ func TestPEXReactorRunning(t *testing.T) {
 	}
 
 	addOtherNodeAddrToAddrBook := func(switchIndex, otherSwitchIndex int) {
-		addr := switches[otherSwitchIndex].NodeInfo().NetAddress()
+		addr := switches[otherSwitchIndex].NetAddress()
 		books[switchIndex].AddAddress(addr, addr)
 	}
 
@@ -127,7 +127,7 @@ func TestPEXReactorReceive(t *testing.T) {
 	r.RequestAddrs(peer)
 
 	size := book.Size()
-	addrs := []*p2p.NetAddress{peer.NodeInfo().NetAddress()}
+	addrs := []*p2p.NetAddress{peer.SocketAddr()}
 	msg := cdc.MustMarshalBinaryBare(&pexAddrsMessage{Addrs: addrs})
 	r.Receive(PexChannel, peer, msg)
 	assert.Equal(t, size+1, book.Size())
@@ -184,7 +184,7 @@ func TestPEXReactorAddrsMessageAbuse(t *testing.T) {
 	assert.True(t, r.requestsSent.Has(id))
 	assert.True(t, sw.Peers().Has(peer.ID()))
 
-	addrs := []*p2p.NetAddress{peer.NodeInfo().NetAddress()}
+	addrs := []*p2p.NetAddress{peer.SocketAddr()}
 	msg := cdc.MustMarshalBinaryBare(&pexAddrsMessage{Addrs: addrs})
 
 	// receive some addrs. should clear the request
@@ -229,7 +229,7 @@ func TestCheckSeeds(t *testing.T) {
 	badPeerConfig = &PEXReactorConfig{
 		Seeds: []string{"ed3dfd27bfc4af18f67a49862f04cc100696e84d@bad.network.addr:26657",
 			"d824b13cb5d40fa1d8a614e089357c7eff31b670@anotherbad.network.addr:26657",
-			seed.NodeInfo().NetAddress().String()},
+			seed.NetAddress().String()},
 	}
 	peer = testCreatePeerWithConfig(dir, 2, badPeerConfig)
 	require.Nil(t, peer.Start())
@@ -263,12 +263,13 @@ func TestConnectionSpeedForPeerReceivedFromSeed(t *testing.T) {
 	defer os.RemoveAll(dir) // nolint: errcheck
 
 	// 1. create peer
-	peer := testCreateDefaultPeer(dir, 1)
+	peerSwitch := testCreateDefaultPeer(dir, 1)
-	require.Nil(t, peer.Start())
+	require.Nil(t, peerSwitch.Start())
-	defer peer.Stop()
+	defer peerSwitch.Stop()
 
 	// 2. Create seed which knows about the peer
-	seed := testCreateSeed(dir, 2, []*p2p.NetAddress{peer.NodeInfo().NetAddress()}, []*p2p.NetAddress{peer.NodeInfo().NetAddress()})
+	peerAddr := peerSwitch.NetAddress()
+	seed := testCreateSeed(dir, 2, []*p2p.NetAddress{peerAddr}, []*p2p.NetAddress{peerAddr})
 	require.Nil(t, seed.Start())
 	defer seed.Stop()
 
@@ -295,7 +296,7 @@ func TestPEXReactorCrawlStatus(t *testing.T) {
 	// Create a peer, add it to the peer set and the addrbook.
 	peer := p2p.CreateRandomPeer(false)
 	p2p.AddPeerToSwitch(pexR.Switch, peer)
-	addr1 := peer.NodeInfo().NetAddress()
+	addr1 := peer.SocketAddr()
 	pexR.book.AddAddress(addr1, addr1)
 
 	// Add a non-connected address to the book.
@@ -359,7 +360,7 @@ func TestPEXReactorSeedModeFlushStop(t *testing.T) {
 	reactor := switches[0].Reactors()["pex"].(*PEXReactor)
 	peerID := switches[1].NodeInfo().ID()
 
-	err = switches[1].DialPeerWithAddress(switches[0].NodeInfo().NetAddress(), false)
+	err = switches[1].DialPeerWithAddress(switches[0].NetAddress(), false)
 	assert.NoError(t, err)
 
 	// sleep up to a second while waiting for the peer to send us a message.
@@ -397,7 +398,7 @@ func TestPEXReactorDoesNotAddPrivatePeersToAddrBook(t *testing.T) {
 	pexR.RequestAddrs(peer)
 
 	size := book.Size()
-	addrs := []*p2p.NetAddress{peer.NodeInfo().NetAddress()}
+	addrs := []*p2p.NetAddress{peer.SocketAddr()}
 	msg := cdc.MustMarshalBinaryBare(&pexAddrsMessage{Addrs: addrs})
 	pexR.Receive(PexChannel, peer, msg)
 	assert.Equal(t, size, book.Size())
@@ -414,7 +415,7 @@ func TestPEXReactorDialPeer(t *testing.T) {
 	sw.SetAddrBook(book)
 
 	peer := mock.NewPeer(nil)
-	addr := peer.NodeInfo().NetAddress()
+	addr := peer.SocketAddr()
 
 	assert.Equal(t, 0, pexR.AttemptsToDial(addr))
 
@@ -547,7 +548,7 @@ func testCreateSeed(dir string, id int, knownAddrs, srcAddrs []*p2p.NetAddress)
 // Starting and stopping the peer is left to the caller
 func testCreatePeerWithSeed(dir string, id int, seed *p2p.Switch) *p2p.Switch {
 	conf := &PEXReactorConfig{
-		Seeds: []string{seed.NodeInfo().NetAddress().String()},
+		Seeds: []string{seed.NetAddress().String()},
 	}
 	return testCreatePeerWithConfig(dir, id, conf)
 }

p2p/switch.go

@@ -86,6 +86,12 @@ type Switch struct {
 	metrics *Metrics
 }
 
+// NetAddress returns the address the switch is listening on.
+func (sw *Switch) NetAddress() *NetAddress {
+	addr := sw.transport.NetAddress()
+	return &addr
+}
+
 // SwitchOption sets an optional parameter on the Switch.
 type SwitchOption func(*Switch)
 
@@ -289,13 +295,7 @@ func (sw *Switch) StopPeerForError(peer Peer, reason interface{}) {
 	sw.stopAndRemovePeer(peer, reason)
 
 	if peer.IsPersistent() {
-		addr := peer.OriginalAddr()
+		go sw.reconnectToPeer(peer.SocketAddr())
-		if addr == nil {
-			// FIXME: persistent peers can't be inbound right now.
-			// self-reported address for inbound persistent peers
-			addr = peer.NodeInfo().NetAddress()
-		}
-		go sw.reconnectToPeer(addr)
 	}
 }
 
@@ -383,7 +383,7 @@ func (sw *Switch) SetAddrBook(addrBook AddrBook) {
 // like contributed to consensus.
 func (sw *Switch) MarkPeerAsGood(peer Peer) {
 	if sw.addrBook != nil {
-		sw.addrBook.MarkGood(peer.NodeInfo().NetAddress())
+		sw.addrBook.MarkGood(peer.SocketAddr())
 	}
 }
 
@@ -400,7 +400,7 @@ func (sw *Switch) DialPeersAsync(addrBook AddrBook, peers []string, persistent b
 		sw.Logger.Error("Error in peer's address", "err", err)
 	}
 
-	ourAddr := sw.nodeInfo.NetAddress()
+	ourAddr := sw.NetAddress()
 
 	// TODO: this code feels like it's in the wrong place.
 	// The integration tests depend on the addrBook being saved
@@ -536,7 +536,7 @@ func (sw *Switch) acceptRoutine() {
 		if in >= sw.config.MaxNumInboundPeers {
 			sw.Logger.Info(
 				"Ignoring inbound connection: already have enough inbound peers",
-				"address", p.NodeInfo().NetAddress().String(),
+				"address", p.SocketAddr(),
 				"have", in,
 				"max", sw.config.MaxNumInboundPeers,
 			)
@@ -653,7 +653,7 @@ func (sw *Switch) addPeer(p Peer) error {
 		return err
 	}
 
-	p.SetLogger(sw.Logger.With("peer", p.NodeInfo().NetAddress()))
+	p.SetLogger(sw.Logger.With("peer", p.SocketAddr()))
 
 	// Handle the shut down case where the switch has stopped but we're
 	// concurrently trying to add a peer.

p2p/switch_test.go

@@ -161,10 +161,6 @@ func assertMsgReceivedWithTimeout(t *testing.T, msgBytes []byte, channel byte, r
 
 func TestSwitchFiltersOutItself(t *testing.T) {
 	s1 := MakeSwitch(cfg, 1, "127.0.0.1", "123.123.123", initSwitchFunc)
-	// addr := s1.NodeInfo().NetAddress()
-
-	// // add ourselves like we do in node.go#427
-	// s1.addrBook.AddOurAddress(addr)
 
 	// simulate s1 having a public IP by creating a remote peer with the same ID
 	rp := &remotePeer{PrivKey: s1.nodeKey.PrivKey, Config: cfg}
@@ -498,7 +494,7 @@ func TestSwitchAcceptRoutine(t *testing.T) {
 		rp := &remotePeer{PrivKey: ed25519.GenPrivKey(), Config: cfg}
 		remotePeers = append(remotePeers, rp)
 		rp.Start()
-		c, err := rp.Dial(sw.NodeInfo().NetAddress())
+		c, err := rp.Dial(sw.NetAddress())
 		require.NoError(t, err)
 		// spawn a reading routine to prevent connection from closing
 		go func(c net.Conn) {
@@ -517,7 +513,7 @@ func TestSwitchAcceptRoutine(t *testing.T) {
 	// 2. check we close new connections if we already have MaxNumInboundPeers peers
 	rp := &remotePeer{PrivKey: ed25519.GenPrivKey(), Config: cfg}
 	rp.Start()
-	conn, err := rp.Dial(sw.NodeInfo().NetAddress())
+	conn, err := rp.Dial(sw.NetAddress())
 	require.NoError(t, err)
 	// check conn is closed
 	one := make([]byte, 1)
@@ -537,6 +533,10 @@ type errorTransport struct {
 	acceptErr error
 }
 
+func (et errorTransport) NetAddress() NetAddress {
+	panic("not implemented")
+}
+
 func (et errorTransport) Accept(c peerConfig) (Peer, error) {
 	return nil, et.acceptErr
 }

p2p/test_util.go

@@ -36,6 +36,7 @@ func CreateRandomPeer(outbound bool) *peer {
 	p := &peer{
 		peerConn: peerConn{
 			outbound:   outbound,
+			socketAddr: netAddr,
 		},
 		nodeInfo: mockNodeInfo{netAddr},
 		mconn:    &conn.MConnection{},
@@ -174,10 +175,15 @@ func MakeSwitch(
 		PrivKey: ed25519.GenPrivKey(),
 	}
 	nodeInfo := testNodeInfo(nodeKey.ID(), fmt.Sprintf("node%d", i))
+	addr, err := NewNetAddressString(
+		IDAddressString(nodeKey.ID(), nodeInfo.(DefaultNodeInfo).ListenAddr),
+	)
+	if err != nil {
+		panic(err)
+	}
 
 	t := NewMultiplexTransport(nodeInfo, nodeKey, MConnConfig(cfg))
 
-	addr := nodeInfo.NetAddress()
 	if err := t.Listen(*addr); err != nil {
 		panic(err)
 	}
@@ -214,7 +220,7 @@ func testPeerConn(
 	cfg *config.P2PConfig,
 	outbound, persistent bool,
 	ourNodePrivKey crypto.PrivKey,
-	originalAddr *NetAddress,
+	socketAddr *NetAddress,
 ) (pc peerConn, err error) {
 	conn := rawConn
 
@@ -231,12 +237,7 @@ func testPeerConn(
 	}
 
 	// Only the information we already have
-	return peerConn{
+	return newPeerConn(outbound, persistent, conn, socketAddr), nil
-		outbound:     outbound,
-		persistent:   persistent,
-		conn:         conn,
-		originalAddr: originalAddr,
-	}, nil
 }
 
 //----------------------------------------------------------------

p2p/transport.go

@@ -24,6 +24,7 @@ type IPResolver interface {
 // accept is the container to carry the upgraded connection and NodeInfo from an
 // asynchronously running routine to the Accept method.
 type accept struct {
+	netAddr  *NetAddress
 	conn     net.Conn
 	nodeInfo NodeInfo
 	err      error
@@ -47,6 +48,9 @@ type peerConfig struct {
 // the transport. Each transport is also responsible to filter establishing
 // peers specific to its domain.
 type Transport interface {
+	// Listening address.
+	NetAddress() NetAddress
+
 	// Accept returns a newly connected Peer.
 	Accept(peerConfig) (Peer, error)
 
@@ -115,6 +119,7 @@ func MultiplexTransportResolver(resolver IPResolver) MultiplexTransportOption {
 // MultiplexTransport accepts and dials tcp connections and upgrades them to
 // multiplexed peers.
 type MultiplexTransport struct {
+	netAddr  NetAddress
 	listener net.Listener
 
 	acceptc chan accept
@@ -161,6 +166,11 @@ func NewMultiplexTransport(
 	}
 }
 
+// NetAddress implements Transport.
+func (mt *MultiplexTransport) NetAddress() NetAddress {
+	return mt.netAddr
+}
+
 // Accept implements Transport.
 func (mt *MultiplexTransport) Accept(cfg peerConfig) (Peer, error) {
 	select {
@@ -173,7 +183,7 @@ func (mt *MultiplexTransport) Accept(cfg peerConfig) (Peer, error) {
 
 		cfg.outbound = false
 
-		return mt.wrapPeer(a.conn, a.nodeInfo, cfg, nil), nil
+		return mt.wrapPeer(a.conn, a.nodeInfo, cfg, a.netAddr), nil
 	case <-mt.closec:
 		return nil, ErrTransportClosed{}
 	}
@@ -224,6 +234,7 @@ func (mt *MultiplexTransport) Listen(addr NetAddress) error {
 		return err
 	}
 
+	mt.netAddr = addr
 	mt.listener = ln
 
 	go mt.acceptPeers()
@@ -258,15 +269,21 @@ func (mt *MultiplexTransport) acceptPeers() {
 			var (
 				nodeInfo   NodeInfo
 				secretConn *conn.SecretConnection
+				netAddr    *NetAddress
 			)
 
 			err := mt.filterConn(c)
 			if err == nil {
 				secretConn, nodeInfo, err = mt.upgrade(c, nil)
+				if err == nil {
+					addr := c.RemoteAddr()
+					id := PubKeyToID(secretConn.RemotePubKey())
+					netAddr = NewNetAddress(id, addr)
+				}
 			}
 
 			select {
-			case mt.acceptc <- accept{secretConn, nodeInfo, err}:
+			case mt.acceptc <- accept{netAddr, secretConn, nodeInfo, err}:
 				// Make the upgraded peer available.
 			case <-mt.closec:
 				// Give up if the transport was closed.
@@ -426,14 +443,14 @@ func (mt *MultiplexTransport) wrapPeer(
 	c net.Conn,
 	ni NodeInfo,
 	cfg peerConfig,
-	dialedAddr *NetAddress,
+	socketAddr *NetAddress,
 ) Peer {
 
 	peerConn := newPeerConn(
 		cfg.outbound,
 		cfg.persistent,
 		c,
-		dialedAddr,
+		socketAddr,
 	)
 
 	p := newPeer(

p2p/transport_test.go

@@ -8,6 +8,8 @@ import (
 	"testing"
 	"time"
 
+	"github.com/stretchr/testify/require"
+
 	"github.com/tendermint/tendermint/crypto/ed25519"
 	"github.com/tendermint/tendermint/p2p/conn"
 )
@@ -142,43 +144,23 @@ func TestTransportMultiplexConnFilterTimeout(t *testing.T) {
 
 func TestTransportMultiplexAcceptMultiple(t *testing.T) {
 	mt := testSetupMultiplexTransport(t)
+	id, addr := mt.nodeKey.ID(), mt.listener.Addr().String()
+	laddr, err := NewNetAddressStringWithOptionalID(IDAddressString(id, addr))
+	require.NoError(t, err)
 
 	var (
 		seed     = rand.New(rand.NewSource(time.Now().UnixNano()))
-		errc = make(chan error, seed.Intn(64)+64)
+		nDialers = seed.Intn(64) + 64
+		errc     = make(chan error, nDialers)
 	)
 
 	// Setup dialers.
-	for i := 0; i < cap(errc); i++ {
+	for i := 0; i < nDialers; i++ {
-		go func() {
+		go testDialer(*laddr, errc)
-			var (
-				pv     = ed25519.GenPrivKey()
-				dialer = newMultiplexTransport(
-					testNodeInfo(PubKeyToID(pv.PubKey()), defaultNodeName),
-					NodeKey{
-						PrivKey: pv,
-					},
-				)
-			)
-			addr, err := NewNetAddressStringWithOptionalID(IDAddressString(mt.nodeKey.ID(), mt.listener.Addr().String()))
-			if err != nil {
-				errc <- err
-				return
-			}
-
-			_, err = dialer.Dial(*addr, peerConfig{})
-			if err != nil {
-				errc <- err
-				return
-			}
-
-			// Signal that the connection was established.
-			errc <- nil
-		}()
 	}
 
 	// Catch connection errors.
-	for i := 0; i < cap(errc); i++ {
+	for i := 0; i < nDialers; i++ {
 		if err := <-errc; err != nil {
 			t.Fatal(err)
 		}
@@ -216,6 +198,27 @@ func TestTransportMultiplexAcceptMultiple(t *testing.T) {
 	}
 }
 
+func testDialer(dialAddr NetAddress, errc chan error) {
+	var (
+		pv     = ed25519.GenPrivKey()
+		dialer = newMultiplexTransport(
+			testNodeInfo(PubKeyToID(pv.PubKey()), defaultNodeName),
+			NodeKey{
+				PrivKey: pv,
+			},
+		)
+	)
+
+	_, err := dialer.Dial(dialAddr, peerConfig{})
+	if err != nil {
+		errc <- err
+		return
+	}
+
+	// Signal that the connection was established.
+	errc <- nil
+}
+
 func TestTransportMultiplexAcceptNonBlocking(t *testing.T) {
 	mt := testSetupMultiplexTransport(t)
 
@@ -591,6 +594,7 @@ func TestTransportHandshake(t *testing.T) {
 	}
 }
 
+// create listener
 func testSetupMultiplexTransport(t *testing.T) *MultiplexTransport {
 	var (
 		pv = ed25519.GenPrivKey()

rpc/core/consensus.go

@@ -218,7 +218,7 @@ func DumpConsensusState(ctx *rpctypes.Context) (*ctypes.ResultDumpConsensusState
 		}
 		peerStates[i] = ctypes.PeerStateInfo{
 			// Peer basic info.
-			NodeAddress: peer.NodeInfo().NetAddress().String(),
+			NodeAddress: peer.SocketAddr().String(),
 			// Peer consensus state.
 			PeerState: peerStateJSON,
 		}