Fix sig/mgmt/Addr

go/lib/hostinfo/hostinfo.go

@@ -36,6 +36,16 @@ type Addrs struct {
 	IPv6 []byte `capnp:"ipv6"`
 }
 
+func FromHostAddr(host addr.HostAddr, port uint16) *Host {
+	h := &Host{Port: port}
+	if host.Type() == addr.HostTypeIPv4 {
+		h.Addrs.IPv4 = host.IP()
+	} else {
+		h.Addrs.IPv6 = host.IP()
+	}
+	return h
+}
+
 func FromUDPAddr(addr net.UDPAddr) Host {
 	if addr.IP.To4() != nil {
 		return Host{
@@ -53,7 +63,7 @@ func FromUDPAddr(addr net.UDPAddr) Host {
 	}
 }
 
-func (h *Host) host() addr.HostAddr {
+func (h *Host) Host() addr.HostAddr {
 	if len(h.Addrs.IPv4) > 0 {
 		return addr.HostIPv4(h.Addrs.IPv4)
 	}
@@ -80,10 +90,10 @@ func (h *Host) UDP() *net.UDPAddr {
 }
 
 func (h *Host) Overlay() (*overlay.OverlayAddr, error) {
-	if h.host().IP() == nil {
-		return nil, common.NewBasicError("unsupported overlay L3 address", nil, "addr", h.host())
+	if h.Host().IP() == nil {
+		return nil, common.NewBasicError("unsupported overlay L3 address", nil, "addr", h.Host())
 	}
-	ip := h.host().IP()
+	ip := h.Host().IP()
 	return overlay.NewOverlayAddr(append(ip[:0:0], ip...), h.Port), nil
 }
 
@@ -98,7 +108,7 @@ func (h *Host) Copy() *Host {
 }
 
 func (h *Host) String() string {
-	return fmt.Sprintf("[%v]:%d", h.host(), h.Port)
+	return fmt.Sprintf("[%v]:%d", h.Host(), h.Port)
 }
 
 func copyIP(ip net.IP) net.IP {

go/sig/egress/session/sessmon.go

@@ -324,7 +324,7 @@ func (sm *sessMonitor) handleRep(rpld *disp.RegPld) {
 		// Update sessmon's remote.
 		sm.smRemote.Sig = &siginfo.Sig{
 			IA:          sm.smRemote.Sig.IA,
-			Host:        addr.HostFromIP(pollRep.Addr.Ctrl.IP),
+			Host:        pollRep.Addr.Ctrl.Host(),
 			CtrlL4Port:  int(pollRep.Addr.Ctrl.Port),
 			EncapL4Port: int(pollRep.Addr.EncapPort),
 		}

go/sig/internal/base/pollhdlr.go

@@ -60,7 +60,7 @@ func PollReqHdlr() {
 		}
 		sigCtrlAddr := &snet.Addr{
 			IA:      rpld.Addr.IA,
-			Host:    addr.AppAddrFromUDP(req.Addr.Ctrl),
+			Host:    addr.AppAddrFromUDP(req.Addr.Ctrl.UDP()),
 			Path:    rpld.Addr.Path,
 			NextHop: rpld.Addr.NextHop.Copy(),
 		}

go/sig/mgmt/BUILD.bazel

@@ -13,6 +13,7 @@ go_library(
     deps = [
         "//go/lib/addr:go_default_library",
         "//go/lib/common:go_default_library",
+        "//go/lib/hostinfo:go_default_library",
         "//go/proto:go_default_library",
     ],
 )

go/sig/mgmt/addr.go

@@ -17,23 +17,23 @@ package mgmt
 
 import (
 	"fmt"
-	"net"
 
 	"github.com/scionproto/scion/go/lib/addr"
 	"github.com/scionproto/scion/go/lib/common"
+	"github.com/scionproto/scion/go/lib/hostinfo"
 	"github.com/scionproto/scion/go/proto"
 )
 
 var _ proto.Cerealizable = (*Addr)(nil)
 
 type Addr struct {
-	Ctrl      *net.UDPAddr
+	Ctrl      *hostinfo.Host
 	EncapPort uint16
 }
 
 func NewAddr(host addr.HostAddr, ctrlPort, encapPort uint16) *Addr {
 	return &Addr{
-		Ctrl:      &net.UDPAddr{IP: host.IP(), Port: int(ctrlPort)},
+		Ctrl:      hostinfo.FromHostAddr(host, ctrlPort),
 		EncapPort: encapPort,
 	}
 }
@@ -53,5 +53,5 @@ func (a *Addr) Write(b common.RawBytes) (int, error) {
 
 func (a *Addr) String() string {
 	return fmt.Sprintf("Host: %s CtrlPort: %d EncapPort: %d",
-		a.Ctrl.IP, a.Ctrl.Port, a.EncapPort)
+		a.Ctrl.Host(), a.Ctrl.Port, a.EncapPort)
 }