peer: fix panic during peer connection

peer.go

@@ -168,8 +168,8 @@ type peer struct {
 
 // newPeer creates a new peer from an establish connection object, and a
 // pointer to the main server.
-func newPeer(conn net.Conn, server *server, addr *lnwire.NetAddress,
-	inbound bool) (*peer, error) {
+func newPeer(conn net.Conn, connReq *connmgr.ConnReq, server *server,
+	addr *lnwire.NetAddress, inbound bool) (*peer, error) {
 
 	nodePub := addr.IdentityKey
 
@@ -180,6 +180,7 @@ func newPeer(conn net.Conn, server *server, addr *lnwire.NetAddress,
 
 		id:      atomic.AddInt32(&numNodes, 1),
 		inbound: inbound,
+		connReq: connReq,
 
 		server: server,
 
@@ -209,7 +210,7 @@ func newPeer(conn net.Conn, server *server, addr *lnwire.NetAddress,
 	// Initiate the pending channel identifier properly depending on if this
 	// node is inbound or outbound. This value will be used in an increasing
 	// manner to track pending channels.
-	if inbound {
+	if p.inbound {
 		p.nextPendingChannelID = 1 << 63
 	} else {
 		p.nextPendingChannelID = 0

server.go

@@ -438,30 +438,29 @@ func (s *server) peerConnected(conn net.Conn, connReq *connmgr.ConnReq, inbound
 
 	// Now that we've established a connection, create a peer, and
 	// it to the set of currently active peers.
-	peer, err := newPeer(conn, s, peerAddr, false)
+	p, err := newPeer(conn, connReq, s, peerAddr, inbound)
 	if err != nil {
 		srvrLog.Errorf("unable to create peer %v", err)
-		s.connMgr.Remove(peer.connReq.ID())
-		peer.Disconnect()
-		conn.Close()
+		if p.connReq != nil {
+			s.connMgr.Remove(p.connReq.ID())
+		}
+		p.Disconnect()
 		return
 	}
-	if connReq != nil {
-		peer.connReq = connReq
-	}
 
 	// TODO(roasbeef): update IP address for link-node
 	//  * also mark last-seen, do it one single transaction?
 
-	if err := peer.Start(); err != nil {
+	if err := p.Start(); err != nil {
 		srvrLog.Errorf("unable to start peer: %v", err)
-		s.connMgr.Remove(peer.connReq.ID())
-		peer.Disconnect()
-		conn.Close()
+		if p.connReq != nil {
+			s.connMgr.Remove(p.connReq.ID())
+		}
+		p.Disconnect()
 		return
 	}
 
-	s.newPeers <- peer
+	s.newPeers <- p
 }
 
 // inboundPeerConnected initializes a new peer in response to a new inbound