Add app source, add vendoring and module support

vendor/github.com/osrg/gobgp/internal/pkg/apiutil/capability.go

@@ -0,0 +1,246 @@
+// Copyright (C) 2018 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package apiutil
+
+import (
+	"fmt"
+
+	proto "github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes"
+	"github.com/golang/protobuf/ptypes/any"
+	api "github.com/osrg/gobgp/api"
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+)
+
+func NewMultiProtocolCapability(a *bgp.CapMultiProtocol) *api.MultiProtocolCapability {
+	afi, safi := bgp.RouteFamilyToAfiSafi(a.CapValue)
+	return &api.MultiProtocolCapability{
+		Family: ToApiFamily(afi, safi),
+	}
+}
+
+func NewRouteRefreshCapability(a *bgp.CapRouteRefresh) *api.RouteRefreshCapability {
+	return &api.RouteRefreshCapability{}
+}
+
+func NewCarryingLabelInfoCapability(a *bgp.CapCarryingLabelInfo) *api.CarryingLabelInfoCapability {
+	return &api.CarryingLabelInfoCapability{}
+}
+
+func NewExtendedNexthopCapability(a *bgp.CapExtendedNexthop) *api.ExtendedNexthopCapability {
+	tuples := make([]*api.ExtendedNexthopCapabilityTuple, 0, len(a.Tuples))
+	for _, t := range a.Tuples {
+		tuples = append(tuples, &api.ExtendedNexthopCapabilityTuple{
+			NlriFamily:    ToApiFamily(t.NLRIAFI, uint8(t.NLRISAFI)),
+			NexthopFamily: ToApiFamily(t.NexthopAFI, bgp.SAFI_UNICAST),
+		})
+	}
+	return &api.ExtendedNexthopCapability{
+		Tuples: tuples,
+	}
+}
+
+func NewGracefulRestartCapability(a *bgp.CapGracefulRestart) *api.GracefulRestartCapability {
+	tuples := make([]*api.GracefulRestartCapabilityTuple, 0, len(a.Tuples))
+	for _, t := range a.Tuples {
+		tuples = append(tuples, &api.GracefulRestartCapabilityTuple{
+			Family: ToApiFamily(t.AFI, t.SAFI),
+			Flags:  uint32(t.Flags),
+		})
+	}
+	return &api.GracefulRestartCapability{
+		Flags:  uint32(a.Flags),
+		Time:   uint32(a.Time),
+		Tuples: tuples,
+	}
+}
+
+func NewFourOctetASNumberCapability(a *bgp.CapFourOctetASNumber) *api.FourOctetASNumberCapability {
+	return &api.FourOctetASNumberCapability{
+		As: a.CapValue,
+	}
+}
+
+func NewAddPathCapability(a *bgp.CapAddPath) *api.AddPathCapability {
+	tuples := make([]*api.AddPathCapabilityTuple, 0, len(a.Tuples))
+	for _, t := range a.Tuples {
+		afi, safi := bgp.RouteFamilyToAfiSafi(t.RouteFamily)
+		tuples = append(tuples, &api.AddPathCapabilityTuple{
+			Family: ToApiFamily(afi, safi),
+			Mode:   api.AddPathMode(t.Mode),
+		})
+	}
+	return &api.AddPathCapability{
+		Tuples: tuples,
+	}
+}
+
+func NewEnhancedRouteRefreshCapability(a *bgp.CapEnhancedRouteRefresh) *api.EnhancedRouteRefreshCapability {
+	return &api.EnhancedRouteRefreshCapability{}
+}
+
+func NewLongLivedGracefulRestartCapability(a *bgp.CapLongLivedGracefulRestart) *api.LongLivedGracefulRestartCapability {
+	tuples := make([]*api.LongLivedGracefulRestartCapabilityTuple, 0, len(a.Tuples))
+	for _, t := range a.Tuples {
+		tuples = append(tuples, &api.LongLivedGracefulRestartCapabilityTuple{
+			Family: ToApiFamily(t.AFI, uint8(t.SAFI)),
+			Flags:  uint32(t.Flags),
+			Time:   t.RestartTime,
+		})
+	}
+	return &api.LongLivedGracefulRestartCapability{
+		Tuples: tuples,
+	}
+}
+
+func NewRouteRefreshCiscoCapability(a *bgp.CapRouteRefreshCisco) *api.RouteRefreshCiscoCapability {
+	return &api.RouteRefreshCiscoCapability{}
+}
+
+func NewUnknownCapability(a *bgp.CapUnknown) *api.UnknownCapability {
+	return &api.UnknownCapability{
+		Code:  uint32(a.CapCode),
+		Value: a.CapValue,
+	}
+}
+
+func MarshalCapability(value bgp.ParameterCapabilityInterface) (*any.Any, error) {
+	var m proto.Message
+	switch n := value.(type) {
+	case *bgp.CapMultiProtocol:
+		m = NewMultiProtocolCapability(n)
+	case *bgp.CapRouteRefresh:
+		m = NewRouteRefreshCapability(n)
+	case *bgp.CapCarryingLabelInfo:
+		m = NewCarryingLabelInfoCapability(n)
+	case *bgp.CapExtendedNexthop:
+		m = NewExtendedNexthopCapability(n)
+	case *bgp.CapGracefulRestart:
+		m = NewGracefulRestartCapability(n)
+	case *bgp.CapFourOctetASNumber:
+		m = NewFourOctetASNumberCapability(n)
+	case *bgp.CapAddPath:
+		m = NewAddPathCapability(n)
+	case *bgp.CapEnhancedRouteRefresh:
+		m = NewEnhancedRouteRefreshCapability(n)
+	case *bgp.CapLongLivedGracefulRestart:
+		m = NewLongLivedGracefulRestartCapability(n)
+	case *bgp.CapRouteRefreshCisco:
+		m = NewRouteRefreshCiscoCapability(n)
+	case *bgp.CapUnknown:
+		m = NewUnknownCapability(n)
+	default:
+		return nil, fmt.Errorf("invalid capability type to marshal: %+v", value)
+	}
+	return ptypes.MarshalAny(m)
+}
+
+func MarshalCapabilities(values []bgp.ParameterCapabilityInterface) ([]*any.Any, error) {
+	caps := make([]*any.Any, 0, len(values))
+	for _, value := range values {
+		a, err := MarshalCapability(value)
+		if err != nil {
+			return nil, err
+		}
+		caps = append(caps, a)
+	}
+	return caps, nil
+}
+
+func unmarshalCapability(a *any.Any) (bgp.ParameterCapabilityInterface, error) {
+	var value ptypes.DynamicAny
+	if err := ptypes.UnmarshalAny(a, &value); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal capability: %s", err)
+	}
+	switch a := value.Message.(type) {
+	case *api.MultiProtocolCapability:
+		return bgp.NewCapMultiProtocol(ToRouteFamily(a.Family)), nil
+	case *api.RouteRefreshCapability:
+		return bgp.NewCapRouteRefresh(), nil
+	case *api.CarryingLabelInfoCapability:
+		return bgp.NewCapCarryingLabelInfo(), nil
+	case *api.ExtendedNexthopCapability:
+		tuples := make([]*bgp.CapExtendedNexthopTuple, 0, len(a.Tuples))
+		for _, t := range a.Tuples {
+			var nhAfi uint16
+			switch t.NexthopFamily.Afi {
+			case api.Family_AFI_IP:
+				nhAfi = bgp.AFI_IP
+			case api.Family_AFI_IP6:
+				nhAfi = bgp.AFI_IP6
+			default:
+				return nil, fmt.Errorf("invalid address family for nexthop afi in extended nexthop capability: %s", t.NexthopFamily)
+			}
+			tuples = append(tuples, bgp.NewCapExtendedNexthopTuple(ToRouteFamily(t.NlriFamily), nhAfi))
+		}
+		return bgp.NewCapExtendedNexthop(tuples), nil
+	case *api.GracefulRestartCapability:
+		tuples := make([]*bgp.CapGracefulRestartTuple, 0, len(a.Tuples))
+		for _, t := range a.Tuples {
+			var forward bool
+			if t.Flags&0x80 > 0 {
+				forward = true
+			}
+			tuples = append(tuples, bgp.NewCapGracefulRestartTuple(ToRouteFamily(t.Family), forward))
+		}
+		var restarting bool
+		if a.Flags&0x08 > 0 {
+			restarting = true
+		}
+		var notification bool
+		if a.Flags&0x04 > 0 {
+			notification = true
+		}
+		return bgp.NewCapGracefulRestart(restarting, notification, uint16(a.Time), tuples), nil
+	case *api.FourOctetASNumberCapability:
+		return bgp.NewCapFourOctetASNumber(a.As), nil
+	case *api.AddPathCapability:
+		tuples := make([]*bgp.CapAddPathTuple, 0, len(a.Tuples))
+		for _, t := range a.Tuples {
+			tuples = append(tuples, bgp.NewCapAddPathTuple(ToRouteFamily(t.Family), bgp.BGPAddPathMode(t.Mode)))
+		}
+		return bgp.NewCapAddPath(tuples), nil
+	case *api.EnhancedRouteRefreshCapability:
+		return bgp.NewCapEnhancedRouteRefresh(), nil
+	case *api.LongLivedGracefulRestartCapability:
+		tuples := make([]*bgp.CapLongLivedGracefulRestartTuple, 0, len(a.Tuples))
+		for _, t := range a.Tuples {
+			var forward bool
+			if t.Flags&0x80 > 0 {
+				forward = true
+			}
+			tuples = append(tuples, bgp.NewCapLongLivedGracefulRestartTuple(ToRouteFamily(t.Family), forward, t.Time))
+		}
+		return bgp.NewCapLongLivedGracefulRestart(tuples), nil
+	case *api.RouteRefreshCiscoCapability:
+		return bgp.NewCapRouteRefreshCisco(), nil
+	case *api.UnknownCapability:
+		return bgp.NewCapUnknown(bgp.BGPCapabilityCode(a.Code), a.Value), nil
+	}
+	return nil, fmt.Errorf("invalid capability type to unmarshal: %s", a.TypeUrl)
+}
+
+func UnmarshalCapabilities(values []*any.Any) ([]bgp.ParameterCapabilityInterface, error) {
+	caps := make([]bgp.ParameterCapabilityInterface, 0, len(values))
+	for _, value := range values {
+		c, err := unmarshalCapability(value)
+		if err != nil {
+			return nil, err
+		}
+		caps = append(caps, c)
+	}
+	return caps, nil
+}

vendor/github.com/osrg/gobgp/internal/pkg/apiutil/util.go

@@ -0,0 +1,125 @@
+// Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package apiutil
+
+import (
+	"encoding/json"
+	"net"
+	"time"
+
+	api "github.com/osrg/gobgp/api"
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+)
+
+// workaround. This for the json format compatibility. Once we update senario tests, we can remove this.
+type Path struct {
+	Nlri       bgp.AddrPrefixInterface      `json:"nlri"`
+	Age        int64                        `json:"age"`
+	Best       bool                         `json:"best"`
+	Attrs      []bgp.PathAttributeInterface `json:"attrs"`
+	Stale      bool                         `json:"stale"`
+	Withdrawal bool                         `json:"withdrawal,omitempty"`
+	SourceID   net.IP                       `json:"source-id,omitempty"`
+	NeighborIP net.IP                       `json:"neighbor-ip,omitempty"`
+}
+
+type Destination struct {
+	Paths []*Path
+}
+
+func (d *Destination) MarshalJSON() ([]byte, error) {
+	return json.Marshal(d.Paths)
+}
+
+func NewDestination(dst *api.Destination) *Destination {
+	l := make([]*Path, 0, len(dst.Paths))
+	for _, p := range dst.Paths {
+		nlri, _ := GetNativeNlri(p)
+		attrs, _ := GetNativePathAttributes(p)
+		l = append(l, &Path{
+			Nlri:       nlri,
+			Age:        p.Age,
+			Best:       p.Best,
+			Attrs:      attrs,
+			Stale:      p.Stale,
+			Withdrawal: p.IsWithdraw,
+			SourceID:   net.ParseIP(p.SourceId),
+			NeighborIP: net.ParseIP(p.NeighborIp),
+		})
+	}
+	return &Destination{Paths: l}
+}
+
+func NewPath(nlri bgp.AddrPrefixInterface, isWithdraw bool, attrs []bgp.PathAttributeInterface, age time.Time) *api.Path {
+	return &api.Path{
+		AnyNlri:    MarshalNLRI(nlri),
+		AnyPattrs:  MarshalPathAttributes(attrs),
+		Age:        age.Unix(),
+		IsWithdraw: isWithdraw,
+		Family:     ToApiFamily(nlri.AFI(), nlri.SAFI()),
+		Identifier: nlri.PathIdentifier(),
+	}
+}
+
+func getNLRI(family bgp.RouteFamily, buf []byte) (bgp.AddrPrefixInterface, error) {
+	afi, safi := bgp.RouteFamilyToAfiSafi(family)
+	nlri, err := bgp.NewPrefixFromRouteFamily(afi, safi)
+	if err != nil {
+		return nil, err
+	}
+	if err := nlri.DecodeFromBytes(buf); err != nil {
+		return nil, err
+	}
+	return nlri, nil
+}
+
+func GetNativeNlri(p *api.Path) (bgp.AddrPrefixInterface, error) {
+	if len(p.Nlri) > 0 {
+		return getNLRI(ToRouteFamily(p.Family), p.Nlri)
+	}
+	return UnmarshalNLRI(ToRouteFamily(p.Family), p.AnyNlri)
+}
+
+func GetNativePathAttributes(p *api.Path) ([]bgp.PathAttributeInterface, error) {
+	pattrsLen := len(p.Pattrs)
+	if pattrsLen > 0 {
+		pattrs := make([]bgp.PathAttributeInterface, 0, pattrsLen)
+		for _, attr := range p.Pattrs {
+			a, err := bgp.GetPathAttribute(attr)
+			if err != nil {
+				return nil, err
+			}
+			err = a.DecodeFromBytes(attr)
+			if err != nil {
+				return nil, err
+			}
+			pattrs = append(pattrs, a)
+		}
+		return pattrs, nil
+	}
+	return UnmarshalPathAttributes(p.AnyPattrs)
+}
+
+func ToRouteFamily(f *api.Family) bgp.RouteFamily {
+	return bgp.AfiSafiToRouteFamily(uint16(f.Afi), uint8(f.Safi))
+}
+
+func ToApiFamily(afi uint16, safi uint8) *api.Family {
+	return &api.Family{
+		Afi:  api.Family_Afi(afi),
+		Safi: api.Family_Safi(safi),
+	}
+}

vendor/github.com/osrg/gobgp/internal/pkg/config/default.go

@@ -0,0 +1,524 @@
+package config
+
+import (
+	"encoding/binary"
+	"fmt"
+	"math"
+	"net"
+	"reflect"
+	"strconv"
+
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+	"github.com/osrg/gobgp/pkg/packet/bmp"
+	"github.com/osrg/gobgp/pkg/packet/rtr"
+	"github.com/spf13/viper"
+)
+
+const (
+	DEFAULT_HOLDTIME                  = 90
+	DEFAULT_IDLE_HOLDTIME_AFTER_RESET = 30
+	DEFAULT_CONNECT_RETRY             = 120
+)
+
+var forcedOverwrittenConfig = []string{
+	"neighbor.config.peer-as",
+	"neighbor.timers.config.minimum-advertisement-interval",
+}
+
+var configuredFields map[string]interface{}
+
+func RegisterConfiguredFields(addr string, n interface{}) {
+	if configuredFields == nil {
+		configuredFields = make(map[string]interface{})
+	}
+	configuredFields[addr] = n
+}
+
+func defaultAfiSafi(typ AfiSafiType, enable bool) AfiSafi {
+	return AfiSafi{
+		Config: AfiSafiConfig{
+			AfiSafiName: typ,
+			Enabled:     enable,
+		},
+		State: AfiSafiState{
+			AfiSafiName: typ,
+			Family:      bgp.AddressFamilyValueMap[string(typ)],
+		},
+	}
+}
+
+func SetDefaultNeighborConfigValues(n *Neighbor, pg *PeerGroup, g *Global) error {
+	// Determines this function is called against the same Neighbor struct,
+	// and if already called, returns immediately.
+	if n.State.LocalAs != 0 {
+		return nil
+	}
+
+	return setDefaultNeighborConfigValuesWithViper(nil, n, g, pg)
+}
+
+func setDefaultNeighborConfigValuesWithViper(v *viper.Viper, n *Neighbor, g *Global, pg *PeerGroup) error {
+	if n == nil {
+		return fmt.Errorf("neighbor config is nil")
+	}
+	if g == nil {
+		return fmt.Errorf("global config is nil")
+	}
+
+	if v == nil {
+		v = viper.New()
+	}
+
+	if pg != nil {
+		if err := OverwriteNeighborConfigWithPeerGroup(n, pg); err != nil {
+			return err
+		}
+	}
+
+	if n.Config.LocalAs == 0 {
+		n.Config.LocalAs = g.Config.As
+		if !g.Confederation.Config.Enabled || n.IsConfederation(g) {
+			n.Config.LocalAs = g.Config.As
+		} else {
+			n.Config.LocalAs = g.Confederation.Config.Identifier
+		}
+	}
+	n.State.LocalAs = n.Config.LocalAs
+
+	if n.Config.PeerAs != n.Config.LocalAs {
+		n.Config.PeerType = PEER_TYPE_EXTERNAL
+		n.State.PeerType = PEER_TYPE_EXTERNAL
+		n.State.RemovePrivateAs = n.Config.RemovePrivateAs
+		n.AsPathOptions.State.ReplacePeerAs = n.AsPathOptions.Config.ReplacePeerAs
+	} else {
+		n.Config.PeerType = PEER_TYPE_INTERNAL
+		n.State.PeerType = PEER_TYPE_INTERNAL
+		if string(n.Config.RemovePrivateAs) != "" {
+			return fmt.Errorf("can't set remove-private-as for iBGP peer")
+		}
+		if n.AsPathOptions.Config.ReplacePeerAs {
+			return fmt.Errorf("can't set replace-peer-as for iBGP peer")
+		}
+	}
+
+	if n.State.NeighborAddress == "" {
+		n.State.NeighborAddress = n.Config.NeighborAddress
+	}
+
+	n.State.PeerAs = n.Config.PeerAs
+	n.AsPathOptions.State.AllowOwnAs = n.AsPathOptions.Config.AllowOwnAs
+
+	if !v.IsSet("neighbor.error-handling.config.treat-as-withdraw") {
+		n.ErrorHandling.Config.TreatAsWithdraw = true
+	}
+
+	if !v.IsSet("neighbor.timers.config.connect-retry") && n.Timers.Config.ConnectRetry == 0 {
+		n.Timers.Config.ConnectRetry = float64(DEFAULT_CONNECT_RETRY)
+	}
+	if !v.IsSet("neighbor.timers.config.hold-time") && n.Timers.Config.HoldTime == 0 {
+		n.Timers.Config.HoldTime = float64(DEFAULT_HOLDTIME)
+	}
+	if !v.IsSet("neighbor.timers.config.keepalive-interval") && n.Timers.Config.KeepaliveInterval == 0 {
+		n.Timers.Config.KeepaliveInterval = n.Timers.Config.HoldTime / 3
+	}
+	if !v.IsSet("neighbor.timers.config.idle-hold-time-after-reset") && n.Timers.Config.IdleHoldTimeAfterReset == 0 {
+		n.Timers.Config.IdleHoldTimeAfterReset = float64(DEFAULT_IDLE_HOLDTIME_AFTER_RESET)
+	}
+
+	if n.Config.NeighborInterface != "" {
+		if n.RouteServer.Config.RouteServerClient {
+			return fmt.Errorf("configuring route server client as unnumbered peer is not supported")
+		}
+		addr, err := GetIPv6LinkLocalNeighborAddress(n.Config.NeighborInterface)
+		if err != nil {
+			return err
+		}
+		n.State.NeighborAddress = addr
+	}
+
+	if n.Transport.Config.LocalAddress == "" {
+		if n.State.NeighborAddress == "" {
+			return fmt.Errorf("no neighbor address/interface specified")
+		}
+		ipAddr, err := net.ResolveIPAddr("ip", n.State.NeighborAddress)
+		if err != nil {
+			return err
+		}
+		localAddress := "0.0.0.0"
+		if ipAddr.IP.To4() == nil {
+			localAddress = "::"
+			if ipAddr.Zone != "" {
+				localAddress, err = getIPv6LinkLocalAddress(ipAddr.Zone)
+				if err != nil {
+					return err
+				}
+			}
+		}
+		n.Transport.Config.LocalAddress = localAddress
+	}
+
+	if len(n.AfiSafis) == 0 {
+		if n.Config.NeighborInterface != "" {
+			n.AfiSafis = []AfiSafi{
+				defaultAfiSafi(AFI_SAFI_TYPE_IPV4_UNICAST, true),
+				defaultAfiSafi(AFI_SAFI_TYPE_IPV6_UNICAST, true),
+			}
+		} else if ipAddr, err := net.ResolveIPAddr("ip", n.State.NeighborAddress); err != nil {
+			return fmt.Errorf("invalid neighbor address: %s", n.State.NeighborAddress)
+		} else if ipAddr.IP.To4() != nil {
+			n.AfiSafis = []AfiSafi{defaultAfiSafi(AFI_SAFI_TYPE_IPV4_UNICAST, true)}
+		} else {
+			n.AfiSafis = []AfiSafi{defaultAfiSafi(AFI_SAFI_TYPE_IPV6_UNICAST, true)}
+		}
+		for i := range n.AfiSafis {
+			n.AfiSafis[i].AddPaths.Config.Receive = n.AddPaths.Config.Receive
+			n.AfiSafis[i].AddPaths.State.Receive = n.AddPaths.Config.Receive
+			n.AfiSafis[i].AddPaths.Config.SendMax = n.AddPaths.Config.SendMax
+			n.AfiSafis[i].AddPaths.State.SendMax = n.AddPaths.Config.SendMax
+		}
+	} else {
+		afs, err := extractArray(v.Get("neighbor.afi-safis"))
+		if err != nil {
+			return err
+		}
+		for i := range n.AfiSafis {
+			vv := viper.New()
+			if len(afs) > i {
+				vv.Set("afi-safi", afs[i])
+			}
+			rf, err := bgp.GetRouteFamily(string(n.AfiSafis[i].Config.AfiSafiName))
+			if err != nil {
+				return err
+			}
+			n.AfiSafis[i].State.Family = rf
+			n.AfiSafis[i].State.AfiSafiName = n.AfiSafis[i].Config.AfiSafiName
+			if !vv.IsSet("afi-safi.config.enabled") {
+				n.AfiSafis[i].Config.Enabled = true
+			}
+			n.AfiSafis[i].MpGracefulRestart.State.Enabled = n.AfiSafis[i].MpGracefulRestart.Config.Enabled
+			if !vv.IsSet("afi-safi.add-paths.config.receive") {
+				n.AfiSafis[i].AddPaths.Config.Receive = n.AddPaths.Config.Receive
+			}
+			n.AfiSafis[i].AddPaths.State.Receive = n.AfiSafis[i].AddPaths.Config.Receive
+			if !vv.IsSet("afi-safi.add-paths.config.send-max") {
+				n.AfiSafis[i].AddPaths.Config.SendMax = n.AddPaths.Config.SendMax
+			}
+			n.AfiSafis[i].AddPaths.State.SendMax = n.AfiSafis[i].AddPaths.Config.SendMax
+		}
+	}
+
+	n.State.Description = n.Config.Description
+	n.State.AdminDown = n.Config.AdminDown
+
+	if n.GracefulRestart.Config.Enabled {
+		if !v.IsSet("neighbor.graceful-restart.config.restart-time") && n.GracefulRestart.Config.RestartTime == 0 {
+			// RFC 4724 4. Operation
+			// A suggested default for the Restart Time is a value less than or
+			// equal to the HOLDTIME carried in the OPEN.
+			n.GracefulRestart.Config.RestartTime = uint16(n.Timers.Config.HoldTime)
+		}
+		if !v.IsSet("neighbor.graceful-restart.config.deferral-time") && n.GracefulRestart.Config.DeferralTime == 0 {
+			// RFC 4724 4.1. Procedures for the Restarting Speaker
+			// The value of this timer should be large
+			// enough, so as to provide all the peers of the Restarting Speaker with
+			// enough time to send all the routes to the Restarting Speaker
+			n.GracefulRestart.Config.DeferralTime = uint16(360)
+		}
+	}
+
+	if n.EbgpMultihop.Config.Enabled {
+		if n.TtlSecurity.Config.Enabled {
+			return fmt.Errorf("ebgp-multihop and ttl-security are mututally exclusive")
+		}
+		if n.EbgpMultihop.Config.MultihopTtl == 0 {
+			n.EbgpMultihop.Config.MultihopTtl = 255
+		}
+	} else if n.TtlSecurity.Config.Enabled {
+		if n.TtlSecurity.Config.TtlMin == 0 {
+			n.TtlSecurity.Config.TtlMin = 255
+		}
+	}
+
+	if n.RouteReflector.Config.RouteReflectorClient {
+		if n.RouteReflector.Config.RouteReflectorClusterId == "" {
+			n.RouteReflector.State.RouteReflectorClusterId = RrClusterIdType(g.Config.RouterId)
+		} else {
+			id := string(n.RouteReflector.Config.RouteReflectorClusterId)
+			if ip := net.ParseIP(id).To4(); ip != nil {
+				n.RouteReflector.State.RouteReflectorClusterId = n.RouteReflector.Config.RouteReflectorClusterId
+			} else if num, err := strconv.ParseUint(id, 10, 32); err == nil {
+				ip = make(net.IP, 4)
+				binary.BigEndian.PutUint32(ip, uint32(num))
+				n.RouteReflector.State.RouteReflectorClusterId = RrClusterIdType(ip.String())
+			} else {
+				return fmt.Errorf("route-reflector-cluster-id should be specified as IPv4 address or 32-bit unsigned integer")
+			}
+		}
+	}
+
+	return nil
+}
+
+func SetDefaultGlobalConfigValues(g *Global) error {
+	if len(g.AfiSafis) == 0 {
+		g.AfiSafis = []AfiSafi{}
+		for k := range AfiSafiTypeToIntMap {
+			g.AfiSafis = append(g.AfiSafis, defaultAfiSafi(k, true))
+		}
+	}
+
+	if g.Config.Port == 0 {
+		g.Config.Port = bgp.BGP_PORT
+	}
+
+	if len(g.Config.LocalAddressList) == 0 {
+		g.Config.LocalAddressList = []string{"0.0.0.0", "::"}
+	}
+	return nil
+}
+
+func setDefaultVrfConfigValues(v *Vrf) error {
+	if v == nil {
+		return fmt.Errorf("cannot set default values for nil vrf config")
+	}
+
+	if v.Config.Name == "" {
+		return fmt.Errorf("specify vrf name")
+	}
+
+	_, err := bgp.ParseRouteDistinguisher(v.Config.Rd)
+	if err != nil {
+		return fmt.Errorf("invalid rd for vrf %s: %s", v.Config.Name, v.Config.Rd)
+	}
+
+	if len(v.Config.ImportRtList) == 0 {
+		v.Config.ImportRtList = v.Config.BothRtList
+	}
+	for _, rtString := range v.Config.ImportRtList {
+		_, err := bgp.ParseRouteTarget(rtString)
+		if err != nil {
+			return fmt.Errorf("invalid import rt for vrf %s: %s", v.Config.Name, rtString)
+		}
+	}
+
+	if len(v.Config.ExportRtList) == 0 {
+		v.Config.ExportRtList = v.Config.BothRtList
+	}
+	for _, rtString := range v.Config.ExportRtList {
+		_, err := bgp.ParseRouteTarget(rtString)
+		if err != nil {
+			return fmt.Errorf("invalid export rt for vrf %s: %s", v.Config.Name, rtString)
+		}
+	}
+
+	return nil
+}
+
+func SetDefaultConfigValues(b *BgpConfigSet) error {
+	return setDefaultConfigValuesWithViper(nil, b)
+}
+
+func setDefaultPolicyConfigValuesWithViper(v *viper.Viper, p *PolicyDefinition) error {
+	stmts, err := extractArray(v.Get("policy.statements"))
+	if err != nil {
+		return err
+	}
+	for i := range p.Statements {
+		vv := viper.New()
+		if len(stmts) > i {
+			vv.Set("statement", stmts[i])
+		}
+		if !vv.IsSet("statement.actions.route-disposition") {
+			p.Statements[i].Actions.RouteDisposition = ROUTE_DISPOSITION_NONE
+		}
+	}
+	return nil
+}
+
+func setDefaultConfigValuesWithViper(v *viper.Viper, b *BgpConfigSet) error {
+	if v == nil {
+		v = viper.New()
+	}
+
+	if err := SetDefaultGlobalConfigValues(&b.Global); err != nil {
+		return err
+	}
+
+	for idx, server := range b.BmpServers {
+		if server.Config.Port == 0 {
+			server.Config.Port = bmp.BMP_DEFAULT_PORT
+		}
+		if server.Config.RouteMonitoringPolicy == "" {
+			server.Config.RouteMonitoringPolicy = BMP_ROUTE_MONITORING_POLICY_TYPE_PRE_POLICY
+		}
+		// statistics-timeout is uint16 value and implicitly less than 65536
+		if server.Config.StatisticsTimeout != 0 && server.Config.StatisticsTimeout < 15 {
+			return fmt.Errorf("too small statistics-timeout value: %d", server.Config.StatisticsTimeout)
+		}
+		b.BmpServers[idx] = server
+	}
+
+	vrfNames := make(map[string]struct{})
+	vrfIDs := make(map[uint32]struct{})
+	for idx, vrf := range b.Vrfs {
+		if err := setDefaultVrfConfigValues(&vrf); err != nil {
+			return err
+		}
+
+		if _, ok := vrfNames[vrf.Config.Name]; ok {
+			return fmt.Errorf("duplicated vrf name: %s", vrf.Config.Name)
+		}
+		vrfNames[vrf.Config.Name] = struct{}{}
+
+		if vrf.Config.Id != 0 {
+			if _, ok := vrfIDs[vrf.Config.Id]; ok {
+				return fmt.Errorf("duplicated vrf id: %d", vrf.Config.Id)
+			}
+			vrfIDs[vrf.Config.Id] = struct{}{}
+		}
+
+		b.Vrfs[idx] = vrf
+	}
+	// Auto assign VRF identifier
+	for idx, vrf := range b.Vrfs {
+		if vrf.Config.Id == 0 {
+			for id := uint32(1); id < math.MaxUint32; id++ {
+				if _, ok := vrfIDs[id]; !ok {
+					vrf.Config.Id = id
+					vrfIDs[id] = struct{}{}
+					break
+				}
+			}
+		}
+		b.Vrfs[idx] = vrf
+	}
+
+	if b.Zebra.Config.Url == "" {
+		b.Zebra.Config.Url = "unix:/var/run/quagga/zserv.api"
+	}
+	if b.Zebra.Config.Version < 2 {
+		b.Zebra.Config.Version = 2
+	} else if b.Zebra.Config.Version > 5 {
+		b.Zebra.Config.Version = 5
+	}
+	if !v.IsSet("zebra.config.nexthop-trigger-enable") && !b.Zebra.Config.NexthopTriggerEnable && b.Zebra.Config.Version > 2 {
+		b.Zebra.Config.NexthopTriggerEnable = true
+	}
+	if b.Zebra.Config.NexthopTriggerDelay == 0 {
+		b.Zebra.Config.NexthopTriggerDelay = 5
+	}
+
+	list, err := extractArray(v.Get("neighbors"))
+	if err != nil {
+		return err
+	}
+
+	for idx, n := range b.Neighbors {
+		vv := viper.New()
+		if len(list) > idx {
+			vv.Set("neighbor", list[idx])
+		}
+
+		pg, err := b.getPeerGroup(n.Config.PeerGroup)
+		if err != nil {
+			return nil
+		}
+
+		if pg != nil {
+			identifier := vv.Get("neighbor.config.neighbor-address")
+			if identifier == nil {
+				identifier = vv.Get("neighbor.config.neighbor-interface")
+			}
+			RegisterConfiguredFields(identifier.(string), list[idx])
+		}
+
+		if err := setDefaultNeighborConfigValuesWithViper(vv, &n, &b.Global, pg); err != nil {
+			return err
+		}
+		b.Neighbors[idx] = n
+	}
+
+	for _, d := range b.DynamicNeighbors {
+		if err := d.validate(b); err != nil {
+			return err
+		}
+	}
+
+	for idx, r := range b.RpkiServers {
+		if r.Config.Port == 0 {
+			b.RpkiServers[idx].Config.Port = rtr.RPKI_DEFAULT_PORT
+		}
+	}
+
+	list, err = extractArray(v.Get("policy-definitions"))
+	if err != nil {
+		return err
+	}
+
+	for idx, p := range b.PolicyDefinitions {
+		vv := viper.New()
+		if len(list) > idx {
+			vv.Set("policy", list[idx])
+		}
+		if err := setDefaultPolicyConfigValuesWithViper(vv, &p); err != nil {
+			return err
+		}
+		b.PolicyDefinitions[idx] = p
+	}
+
+	return nil
+}
+
+func OverwriteNeighborConfigWithPeerGroup(c *Neighbor, pg *PeerGroup) error {
+	v := viper.New()
+
+	val, ok := configuredFields[c.Config.NeighborAddress]
+	if ok {
+		v.Set("neighbor", val)
+	} else {
+		v.Set("neighbor.config.peer-group", c.Config.PeerGroup)
+	}
+
+	overwriteConfig(&c.Config, &pg.Config, "neighbor.config", v)
+	overwriteConfig(&c.Timers.Config, &pg.Timers.Config, "neighbor.timers.config", v)
+	overwriteConfig(&c.Transport.Config, &pg.Transport.Config, "neighbor.transport.config", v)
+	overwriteConfig(&c.ErrorHandling.Config, &pg.ErrorHandling.Config, "neighbor.error-handling.config", v)
+	overwriteConfig(&c.LoggingOptions.Config, &pg.LoggingOptions.Config, "neighbor.logging-options.config", v)
+	overwriteConfig(&c.EbgpMultihop.Config, &pg.EbgpMultihop.Config, "neighbor.ebgp-multihop.config", v)
+	overwriteConfig(&c.RouteReflector.Config, &pg.RouteReflector.Config, "neighbor.route-reflector.config", v)
+	overwriteConfig(&c.AsPathOptions.Config, &pg.AsPathOptions.Config, "neighbor.as-path-options.config", v)
+	overwriteConfig(&c.AddPaths.Config, &pg.AddPaths.Config, "neighbor.add-paths.config", v)
+	overwriteConfig(&c.GracefulRestart.Config, &pg.GracefulRestart.Config, "neighbor.gradeful-restart.config", v)
+	overwriteConfig(&c.ApplyPolicy.Config, &pg.ApplyPolicy.Config, "neighbor.apply-policy.config", v)
+	overwriteConfig(&c.UseMultiplePaths.Config, &pg.UseMultiplePaths.Config, "neighbor.use-multiple-paths.config", v)
+	overwriteConfig(&c.RouteServer.Config, &pg.RouteServer.Config, "neighbor.route-server.config", v)
+	overwriteConfig(&c.TtlSecurity.Config, &pg.TtlSecurity.Config, "neighbor.ttl-security.config", v)
+
+	if !v.IsSet("neighbor.afi-safis") {
+		c.AfiSafis = append(c.AfiSafis, pg.AfiSafis...)
+	}
+
+	return nil
+}
+
+func overwriteConfig(c, pg interface{}, tagPrefix string, v *viper.Viper) {
+	nValue := reflect.Indirect(reflect.ValueOf(c))
+	nType := reflect.Indirect(nValue).Type()
+	pgValue := reflect.Indirect(reflect.ValueOf(pg))
+	pgType := reflect.Indirect(pgValue).Type()
+
+	for i := 0; i < pgType.NumField(); i++ {
+		field := pgType.Field(i).Name
+		tag := tagPrefix + "." + nType.Field(i).Tag.Get("mapstructure")
+		if func() bool {
+			for _, t := range forcedOverwrittenConfig {
+				if t == tag {
+					return true
+				}
+			}
+			return false
+		}() || !v.IsSet(tag) {
+			nValue.FieldByName(field).Set(pgValue.FieldByName(field))
+		}
+	}
+}

vendor/github.com/osrg/gobgp/internal/pkg/config/default_linux.go

@@ -0,0 +1,72 @@
+// Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// +build linux
+
+package config
+
+import (
+	"fmt"
+	"net"
+
+	"github.com/vishvananda/netlink"
+)
+
+func GetIPv6LinkLocalNeighborAddress(ifname string) (string, error) {
+	ifi, err := net.InterfaceByName(ifname)
+	if err != nil {
+		return "", err
+	}
+	neighs, err := netlink.NeighList(ifi.Index, netlink.FAMILY_V6)
+	if err != nil {
+		return "", err
+	}
+	cnt := 0
+	var addr net.IP
+	for _, neigh := range neighs {
+		local, err := isLocalLinkLocalAddress(ifi.Index, neigh.IP)
+		if err != nil {
+			return "", err
+		}
+		if neigh.State&netlink.NUD_FAILED == 0 && neigh.IP.IsLinkLocalUnicast() && !local {
+			addr = neigh.IP
+			cnt++
+		}
+	}
+
+	if cnt == 0 {
+		return "", fmt.Errorf("no ipv6 link-local neighbor found")
+	} else if cnt > 1 {
+		return "", fmt.Errorf("found %d link-local neighbors. only support p2p link", cnt)
+	}
+
+	return fmt.Sprintf("%s%%%s", addr, ifname), nil
+}
+
+func isLocalLinkLocalAddress(ifindex int, addr net.IP) (bool, error) {
+	ifi, err := net.InterfaceByIndex(ifindex)
+	if err != nil {
+		return false, err
+	}
+	addrs, err := ifi.Addrs()
+	if err != nil {
+		return false, err
+	}
+	for _, a := range addrs {
+		if ip, _, _ := net.ParseCIDR(a.String()); addr.Equal(ip) {
+			return true, nil
+		}
+	}
+	return false, nil
+}

vendor/github.com/osrg/gobgp/internal/pkg/config/default_nonlinux.go

@@ -0,0 +1,25 @@
+// Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// +build !linux
+
+package config
+
+import (
+	"fmt"
+)
+
+func GetIPv6LinkLocalNeighborAddress(ifname string) (string, error) {
+	return "", fmt.Errorf("unnumbered peering is not supported")
+}

vendor/github.com/osrg/gobgp/internal/pkg/config/serve.go

@@ -0,0 +1,159 @@
+package config
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/viper"
+)
+
+type BgpConfigSet struct {
+	Global            Global             `mapstructure:"global"`
+	Neighbors         []Neighbor         `mapstructure:"neighbors"`
+	PeerGroups        []PeerGroup        `mapstructure:"peer-groups"`
+	RpkiServers       []RpkiServer       `mapstructure:"rpki-servers"`
+	BmpServers        []BmpServer        `mapstructure:"bmp-servers"`
+	Vrfs              []Vrf              `mapstructure:"vrfs"`
+	MrtDump           []Mrt              `mapstructure:"mrt-dump"`
+	Zebra             Zebra              `mapstructure:"zebra"`
+	Collector         Collector          `mapstructure:"collector"`
+	DefinedSets       DefinedSets        `mapstructure:"defined-sets"`
+	PolicyDefinitions []PolicyDefinition `mapstructure:"policy-definitions"`
+	DynamicNeighbors  []DynamicNeighbor  `mapstructure:"dynamic-neighbors"`
+}
+
+func ReadConfigfileServe(path, format string, configCh chan *BgpConfigSet) {
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, syscall.SIGHUP)
+
+	// Update config file type, if detectable
+	format = detectConfigFileType(path, format)
+
+	cnt := 0
+	for {
+		c := &BgpConfigSet{}
+		v := viper.New()
+		v.SetConfigFile(path)
+		v.SetConfigType(format)
+		var err error
+		if err = v.ReadInConfig(); err != nil {
+			goto ERROR
+		}
+		if err = v.UnmarshalExact(c); err != nil {
+			goto ERROR
+		}
+		if err = setDefaultConfigValuesWithViper(v, c); err != nil {
+			goto ERROR
+		}
+		if cnt == 0 {
+			log.WithFields(log.Fields{
+				"Topic": "Config",
+			}).Info("Finished reading the config file")
+		}
+		cnt++
+		configCh <- c
+		goto NEXT
+	ERROR:
+		if cnt == 0 {
+			log.WithFields(log.Fields{
+				"Topic": "Config",
+				"Error": err,
+			}).Fatalf("Can't read config file %s", path)
+		} else {
+			log.WithFields(log.Fields{
+				"Topic": "Config",
+				"Error": err,
+			}).Warningf("Can't read config file %s", path)
+		}
+	NEXT:
+		<-sigCh
+		log.WithFields(log.Fields{
+			"Topic": "Config",
+		}).Info("Reload the config file")
+	}
+}
+
+func ConfigSetToRoutingPolicy(c *BgpConfigSet) *RoutingPolicy {
+	return &RoutingPolicy{
+		DefinedSets:       c.DefinedSets,
+		PolicyDefinitions: c.PolicyDefinitions,
+	}
+}
+
+func UpdatePeerGroupConfig(curC, newC *BgpConfigSet) ([]PeerGroup, []PeerGroup, []PeerGroup) {
+	addedPg := []PeerGroup{}
+	deletedPg := []PeerGroup{}
+	updatedPg := []PeerGroup{}
+
+	for _, n := range newC.PeerGroups {
+		if idx := existPeerGroup(n.Config.PeerGroupName, curC.PeerGroups); idx < 0 {
+			addedPg = append(addedPg, n)
+		} else if !n.Equal(&curC.PeerGroups[idx]) {
+			log.WithFields(log.Fields{
+				"Topic": "Config",
+			}).Debugf("Current peer-group config:%v", curC.PeerGroups[idx])
+			log.WithFields(log.Fields{
+				"Topic": "Config",
+			}).Debugf("New peer-group config:%v", n)
+			updatedPg = append(updatedPg, n)
+		}
+	}
+
+	for _, n := range curC.PeerGroups {
+		if existPeerGroup(n.Config.PeerGroupName, newC.PeerGroups) < 0 {
+			deletedPg = append(deletedPg, n)
+		}
+	}
+	return addedPg, deletedPg, updatedPg
+}
+
+func UpdateNeighborConfig(curC, newC *BgpConfigSet) ([]Neighbor, []Neighbor, []Neighbor) {
+	added := []Neighbor{}
+	deleted := []Neighbor{}
+	updated := []Neighbor{}
+
+	for _, n := range newC.Neighbors {
+		if idx := inSlice(n, curC.Neighbors); idx < 0 {
+			added = append(added, n)
+		} else if !n.Equal(&curC.Neighbors[idx]) {
+			log.WithFields(log.Fields{
+				"Topic": "Config",
+			}).Debugf("Current neighbor config:%v", curC.Neighbors[idx])
+			log.WithFields(log.Fields{
+				"Topic": "Config",
+			}).Debugf("New neighbor config:%v", n)
+			updated = append(updated, n)
+		}
+	}
+
+	for _, n := range curC.Neighbors {
+		if inSlice(n, newC.Neighbors) < 0 {
+			deleted = append(deleted, n)
+		}
+	}
+	return added, deleted, updated
+}
+
+func CheckPolicyDifference(currentPolicy *RoutingPolicy, newPolicy *RoutingPolicy) bool {
+
+	log.WithFields(log.Fields{
+		"Topic": "Config",
+	}).Debugf("Current policy:%v", currentPolicy)
+	log.WithFields(log.Fields{
+		"Topic": "Config",
+	}).Debugf("New policy:%v", newPolicy)
+
+	var result bool
+	if currentPolicy == nil && newPolicy == nil {
+		result = false
+	} else {
+		if currentPolicy != nil && newPolicy != nil {
+			result = !currentPolicy.Equal(newPolicy)
+		} else {
+			result = true
+		}
+	}
+	return result
+}

vendor/github.com/osrg/gobgp/internal/pkg/config/util.go

@@ -0,0 +1,264 @@
+// Copyright (C) 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"fmt"
+	"net"
+	"path/filepath"
+	"regexp"
+	"strconv"
+
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+)
+
+// Returns config file type by retrieving extension from the given path.
+// If no corresponding type found, returns the given def as the default value.
+func detectConfigFileType(path, def string) string {
+	switch ext := filepath.Ext(path); ext {
+	case ".toml":
+		return "toml"
+	case ".yaml", ".yml":
+		return "yaml"
+	case ".json":
+		return "json"
+	default:
+		return def
+	}
+}
+
+// yaml is decoded as []interface{}
+// but toml is decoded as []map[string]interface{}.
+// currently, viper can't hide this difference.
+// handle the difference here.
+func extractArray(intf interface{}) ([]interface{}, error) {
+	if intf != nil {
+		list, ok := intf.([]interface{})
+		if ok {
+			return list, nil
+		}
+		l, ok := intf.([]map[string]interface{})
+		if !ok {
+			return nil, fmt.Errorf("invalid configuration: neither []interface{} nor []map[string]interface{}")
+		}
+		list = make([]interface{}, 0, len(l))
+		for _, m := range l {
+			list = append(list, m)
+		}
+		return list, nil
+	}
+	return nil, nil
+}
+
+func getIPv6LinkLocalAddress(ifname string) (string, error) {
+	ifi, err := net.InterfaceByName(ifname)
+	if err != nil {
+		return "", err
+	}
+	addrs, err := ifi.Addrs()
+	if err != nil {
+		return "", err
+	}
+	for _, addr := range addrs {
+		ip := addr.(*net.IPNet).IP
+		if ip.To4() == nil && ip.IsLinkLocalUnicast() {
+			return fmt.Sprintf("%s%%%s", ip.String(), ifname), nil
+		}
+	}
+	return "", fmt.Errorf("no ipv6 link local address for %s", ifname)
+}
+
+func (b *BgpConfigSet) getPeerGroup(n string) (*PeerGroup, error) {
+	if n == "" {
+		return nil, nil
+	}
+	for _, pg := range b.PeerGroups {
+		if n == pg.Config.PeerGroupName {
+			return &pg, nil
+		}
+	}
+	return nil, fmt.Errorf("no such peer-group: %s", n)
+}
+
+func (d *DynamicNeighbor) validate(b *BgpConfigSet) error {
+	if d.Config.PeerGroup == "" {
+		return fmt.Errorf("dynamic neighbor requires the peer group config")
+	}
+
+	if _, err := b.getPeerGroup(d.Config.PeerGroup); err != nil {
+		return err
+	}
+	if _, _, err := net.ParseCIDR(d.Config.Prefix); err != nil {
+		return fmt.Errorf("invalid dynamic neighbor prefix %s", d.Config.Prefix)
+	}
+	return nil
+}
+
+func (n *Neighbor) IsConfederationMember(g *Global) bool {
+	for _, member := range g.Confederation.Config.MemberAsList {
+		if member == n.Config.PeerAs {
+			return true
+		}
+	}
+	return false
+}
+
+func (n *Neighbor) IsConfederation(g *Global) bool {
+	if n.Config.PeerAs == g.Config.As {
+		return true
+	}
+	return n.IsConfederationMember(g)
+}
+
+func (n *Neighbor) IsEBGPPeer(g *Global) bool {
+	return n.Config.PeerAs != g.Config.As
+}
+
+func (n *Neighbor) CreateRfMap() map[bgp.RouteFamily]bgp.BGPAddPathMode {
+	rfMap := make(map[bgp.RouteFamily]bgp.BGPAddPathMode)
+	for _, af := range n.AfiSafis {
+		mode := bgp.BGP_ADD_PATH_NONE
+		if af.AddPaths.State.Receive {
+			mode |= bgp.BGP_ADD_PATH_RECEIVE
+		}
+		if af.AddPaths.State.SendMax > 0 {
+			mode |= bgp.BGP_ADD_PATH_SEND
+		}
+		rfMap[af.State.Family] = mode
+	}
+	return rfMap
+}
+
+func (n *Neighbor) GetAfiSafi(family bgp.RouteFamily) *AfiSafi {
+	for _, a := range n.AfiSafis {
+		if string(a.Config.AfiSafiName) == family.String() {
+			return &a
+		}
+	}
+	return nil
+}
+
+func (n *Neighbor) ExtractNeighborAddress() (string, error) {
+	addr := n.State.NeighborAddress
+	if addr == "" {
+		addr = n.Config.NeighborAddress
+		if addr == "" {
+			return "", fmt.Errorf("NeighborAddress is not configured")
+		}
+	}
+	return addr, nil
+}
+
+func (n *Neighbor) IsAddPathReceiveEnabled(family bgp.RouteFamily) bool {
+	for _, af := range n.AfiSafis {
+		if af.State.Family == family {
+			return af.AddPaths.State.Receive
+		}
+	}
+	return false
+}
+
+type AfiSafis []AfiSafi
+
+func (c AfiSafis) ToRfList() ([]bgp.RouteFamily, error) {
+	rfs := make([]bgp.RouteFamily, 0, len(c))
+	for _, af := range c {
+		rfs = append(rfs, af.State.Family)
+	}
+	return rfs, nil
+}
+
+func inSlice(n Neighbor, b []Neighbor) int {
+	for i, nb := range b {
+		if nb.State.NeighborAddress == n.State.NeighborAddress {
+			return i
+		}
+	}
+	return -1
+}
+
+func existPeerGroup(n string, b []PeerGroup) int {
+	for i, nb := range b {
+		if nb.Config.PeerGroupName == n {
+			return i
+		}
+	}
+	return -1
+}
+
+func isAfiSafiChanged(x, y []AfiSafi) bool {
+	if len(x) != len(y) {
+		return true
+	}
+	m := make(map[string]bool)
+	for _, e := range x {
+		m[string(e.Config.AfiSafiName)] = true
+	}
+	for _, e := range y {
+		if !m[string(e.Config.AfiSafiName)] {
+			return true
+		}
+	}
+	return false
+}
+
+func (n *Neighbor) NeedsResendOpenMessage(new *Neighbor) bool {
+	return !n.Config.Equal(&new.Config) ||
+		!n.Transport.Config.Equal(&new.Transport.Config) ||
+		!n.AddPaths.Config.Equal(&new.AddPaths.Config) ||
+		!n.GracefulRestart.Config.Equal(&new.GracefulRestart.Config) ||
+		isAfiSafiChanged(n.AfiSafis, new.AfiSafis)
+}
+
+// TODO: these regexp are duplicated in api
+var _regexpPrefixMaskLengthRange = regexp.MustCompile(`(\d+)\.\.(\d+)`)
+
+func ParseMaskLength(prefix, mask string) (int, int, error) {
+	_, ipNet, err := net.ParseCIDR(prefix)
+	if err != nil {
+		return 0, 0, fmt.Errorf("invalid prefix: %s", prefix)
+	}
+	if mask == "" {
+		l, _ := ipNet.Mask.Size()
+		return l, l, nil
+	}
+	elems := _regexpPrefixMaskLengthRange.FindStringSubmatch(mask)
+	if len(elems) != 3 {
+		return 0, 0, fmt.Errorf("invalid mask length range: %s", mask)
+	}
+	// we've already checked the range is sane by regexp
+	min, _ := strconv.ParseUint(elems[1], 10, 8)
+	max, _ := strconv.ParseUint(elems[2], 10, 8)
+	if min > max {
+		return 0, 0, fmt.Errorf("invalid mask length range: %s", mask)
+	}
+	if ipv4 := ipNet.IP.To4(); ipv4 != nil {
+		f := func(i uint64) bool {
+			return i <= 32
+		}
+		if !f(min) || !f(max) {
+			return 0, 0, fmt.Errorf("ipv4 mask length range outside scope :%s", mask)
+		}
+	} else {
+		f := func(i uint64) bool {
+			return i <= 128
+		}
+		if !f(min) || !f(max) {
+			return 0, 0, fmt.Errorf("ipv6 mask length range outside scope :%s", mask)
+		}
+	}
+	return int(min), int(max), nil
+}

vendor/github.com/osrg/gobgp/internal/pkg/table/adj.go

@@ -0,0 +1,186 @@
+// Copyright (C) 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package table
+
+import (
+	"fmt"
+
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+)
+
+type AdjRib struct {
+	accepted map[bgp.RouteFamily]int
+	table    map[bgp.RouteFamily]map[string]*Path
+}
+
+func NewAdjRib(rfList []bgp.RouteFamily) *AdjRib {
+	table := make(map[bgp.RouteFamily]map[string]*Path)
+	for _, rf := range rfList {
+		table[rf] = make(map[string]*Path)
+	}
+	return &AdjRib{
+		table:    table,
+		accepted: make(map[bgp.RouteFamily]int),
+	}
+}
+
+func (adj *AdjRib) Update(pathList []*Path) {
+	for _, path := range pathList {
+		if path == nil || path.IsEOR() {
+			continue
+		}
+		rf := path.GetRouteFamily()
+		key := fmt.Sprintf("%d:%s", path.GetNlri().PathIdentifier(), path.getPrefix())
+
+		old, found := adj.table[rf][key]
+		if path.IsWithdraw {
+			if found {
+				delete(adj.table[rf], key)
+				if !old.IsAsLooped() {
+					adj.accepted[rf]--
+				}
+			}
+		} else {
+			if found {
+				if old.IsAsLooped() && !path.IsAsLooped() {
+					adj.accepted[rf]++
+				} else if !old.IsAsLooped() && path.IsAsLooped() {
+					adj.accepted[rf]--
+				}
+			} else {
+				if !path.IsAsLooped() {
+					adj.accepted[rf]++
+				}
+			}
+			if found && old.Equal(path) {
+				path.setTimestamp(old.GetTimestamp())
+			}
+			adj.table[rf][key] = path
+		}
+	}
+}
+
+func (adj *AdjRib) PathList(rfList []bgp.RouteFamily, accepted bool) []*Path {
+	pathList := make([]*Path, 0, adj.Count(rfList))
+	for _, rf := range rfList {
+		for _, rr := range adj.table[rf] {
+			if accepted && rr.IsAsLooped() {
+				continue
+			}
+			pathList = append(pathList, rr)
+		}
+	}
+	return pathList
+}
+
+func (adj *AdjRib) Count(rfList []bgp.RouteFamily) int {
+	count := 0
+	for _, rf := range rfList {
+		if table, ok := adj.table[rf]; ok {
+			count += len(table)
+		}
+	}
+	return count
+}
+
+func (adj *AdjRib) Accepted(rfList []bgp.RouteFamily) int {
+	count := 0
+	for _, rf := range rfList {
+		if n, ok := adj.accepted[rf]; ok {
+			count += n
+		}
+	}
+	return count
+}
+
+func (adj *AdjRib) Drop(rfList []bgp.RouteFamily) {
+	for _, rf := range rfList {
+		if _, ok := adj.table[rf]; ok {
+			adj.table[rf] = make(map[string]*Path)
+			adj.accepted[rf] = 0
+		}
+	}
+}
+
+func (adj *AdjRib) DropStale(rfList []bgp.RouteFamily) []*Path {
+	pathList := make([]*Path, 0, adj.Count(rfList))
+	for _, rf := range rfList {
+		if table, ok := adj.table[rf]; ok {
+			for k, p := range table {
+				if p.IsStale() {
+					delete(table, k)
+					if !p.IsAsLooped() {
+						adj.accepted[rf]--
+					}
+					pathList = append(pathList, p.Clone(true))
+				}
+			}
+		}
+	}
+	return pathList
+}
+
+func (adj *AdjRib) StaleAll(rfList []bgp.RouteFamily) []*Path {
+	pathList := make([]*Path, 0)
+	for _, rf := range rfList {
+		if table, ok := adj.table[rf]; ok {
+			l := make([]*Path, 0, len(table))
+			for k, p := range table {
+				n := p.Clone(false)
+				n.MarkStale(true)
+				table[k] = n
+				l = append(l, n)
+			}
+			if len(l) > 0 {
+				pathList = append(pathList, l...)
+			}
+		}
+	}
+	return pathList
+}
+
+func (adj *AdjRib) Select(family bgp.RouteFamily, accepted bool, option ...TableSelectOption) (*Table, error) {
+	m := make(map[string][]*Path)
+	pl := adj.PathList([]bgp.RouteFamily{family}, accepted)
+	for _, path := range pl {
+		key := path.GetNlri().String()
+		if _, y := m[key]; y {
+			m[key] = append(m[key], path)
+		} else {
+			m[key] = []*Path{path}
+		}
+	}
+	d := make([]*Destination, 0, len(pl))
+	for _, l := range m {
+		d = append(d, NewDestination(l[0].GetNlri(), 0, l...))
+	}
+	tbl := NewTable(family, d...)
+	option = append(option, TableSelectOption{adj: true})
+	return tbl.Select(option...)
+}
+
+func (adj *AdjRib) TableInfo(family bgp.RouteFamily) (*TableInfo, error) {
+	if _, ok := adj.table[family]; !ok {
+		return nil, fmt.Errorf("%s unsupported", family)
+	}
+	c := adj.Count([]bgp.RouteFamily{family})
+	a := adj.Accepted([]bgp.RouteFamily{family})
+	return &TableInfo{
+		NumDestination: c,
+		NumPath:        c,
+		NumAccepted:    a,
+	}, nil
+}

vendor/github.com/osrg/gobgp/internal/pkg/table/message.go

@@ -0,0 +1,502 @@
+// Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package table
+
+import (
+	"bytes"
+	"reflect"
+
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+	log "github.com/sirupsen/logrus"
+)
+
+func UpdatePathAttrs2ByteAs(msg *bgp.BGPUpdate) error {
+	ps := msg.PathAttributes
+	msg.PathAttributes = make([]bgp.PathAttributeInterface, len(ps))
+	copy(msg.PathAttributes, ps)
+	var asAttr *bgp.PathAttributeAsPath
+	idx := 0
+	for i, attr := range msg.PathAttributes {
+		if a, ok := attr.(*bgp.PathAttributeAsPath); ok {
+			asAttr = a
+			idx = i
+			break
+		}
+	}
+
+	if asAttr == nil {
+		return nil
+	}
+
+	as4Params := make([]*bgp.As4PathParam, 0, len(asAttr.Value))
+	as2Params := make([]bgp.AsPathParamInterface, 0, len(asAttr.Value))
+	mkAs4 := false
+	for _, param := range asAttr.Value {
+		segType := param.GetType()
+		asList := param.GetAS()
+		as2Path := make([]uint16, 0, len(asList))
+		for _, as := range asList {
+			if as > (1<<16)-1 {
+				mkAs4 = true
+				as2Path = append(as2Path, bgp.AS_TRANS)
+			} else {
+				as2Path = append(as2Path, uint16(as))
+			}
+		}
+		as2Params = append(as2Params, bgp.NewAsPathParam(segType, as2Path))
+
+		// RFC 6793 4.2.2 Generating Updates
+		//
+		// Whenever the AS path information contains the AS_CONFED_SEQUENCE or
+		// AS_CONFED_SET path segment, the NEW BGP speaker MUST exclude such
+		// path segments from the AS4_PATH attribute being constructed.
+		switch segType {
+		case bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SEQ, bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SET:
+			// pass
+		default:
+			if as4param, ok := param.(*bgp.As4PathParam); ok {
+				as4Params = append(as4Params, as4param)
+			}
+		}
+	}
+	msg.PathAttributes[idx] = bgp.NewPathAttributeAsPath(as2Params)
+	if mkAs4 {
+		msg.PathAttributes = append(msg.PathAttributes, bgp.NewPathAttributeAs4Path(as4Params))
+	}
+	return nil
+}
+
+func UpdatePathAttrs4ByteAs(msg *bgp.BGPUpdate) error {
+	var asAttr *bgp.PathAttributeAsPath
+	var as4Attr *bgp.PathAttributeAs4Path
+	asAttrPos := 0
+	as4AttrPos := 0
+	for i, attr := range msg.PathAttributes {
+		switch attr.(type) {
+		case *bgp.PathAttributeAsPath:
+			asAttr = attr.(*bgp.PathAttributeAsPath)
+			for j, param := range asAttr.Value {
+				as2Param, ok := param.(*bgp.AsPathParam)
+				if ok {
+					asPath := make([]uint32, 0, len(as2Param.AS))
+					for _, as := range as2Param.AS {
+						asPath = append(asPath, uint32(as))
+					}
+					as4Param := bgp.NewAs4PathParam(as2Param.Type, asPath)
+					asAttr.Value[j] = as4Param
+				}
+			}
+			asAttrPos = i
+			msg.PathAttributes[i] = asAttr
+		case *bgp.PathAttributeAs4Path:
+			as4AttrPos = i
+			as4Attr = attr.(*bgp.PathAttributeAs4Path)
+		}
+	}
+
+	if as4Attr != nil {
+		msg.PathAttributes = append(msg.PathAttributes[:as4AttrPos], msg.PathAttributes[as4AttrPos+1:]...)
+	}
+
+	if asAttr == nil || as4Attr == nil {
+		return nil
+	}
+
+	asLen := 0
+	asConfedLen := 0
+	asParams := make([]bgp.AsPathParamInterface, 0, len(asAttr.Value))
+	for _, param := range asAttr.Value {
+		asLen += param.ASLen()
+		switch param.GetType() {
+		case bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SET:
+			asConfedLen++
+		case bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SEQ:
+			asConfedLen += len(param.GetAS())
+		}
+		asParams = append(asParams, param)
+	}
+
+	as4Len := 0
+	as4Params := make([]bgp.AsPathParamInterface, 0, len(as4Attr.Value))
+	if as4Attr != nil {
+		for _, p := range as4Attr.Value {
+			// RFC 6793 6. Error Handling
+			//
+			// the path segment types AS_CONFED_SEQUENCE and AS_CONFED_SET [RFC5065]
+			// MUST NOT be carried in the AS4_PATH attribute of an UPDATE message.
+			// A NEW BGP speaker that receives these path segment types in the AS4_PATH
+			// attribute of an UPDATE message from an OLD BGP speaker MUST discard
+			// these path segments, adjust the relevant attribute fields accordingly,
+			// and continue processing the UPDATE message.
+			// This case SHOULD be logged locally for analysis.
+			switch p.Type {
+			case bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SEQ, bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SET:
+				typ := "CONFED_SEQ"
+				if p.Type == bgp.BGP_ASPATH_ATTR_TYPE_CONFED_SET {
+					typ = "CONFED_SET"
+				}
+				log.WithFields(log.Fields{
+					"Topic": "Table",
+				}).Warnf("AS4_PATH contains %s segment %s. ignore", typ, p.String())
+				continue
+			}
+			as4Len += p.ASLen()
+			as4Params = append(as4Params, p)
+		}
+	}
+
+	if asLen+asConfedLen < as4Len {
+		log.WithFields(log.Fields{
+			"Topic": "Table",
+		}).Warn("AS4_PATH is longer than AS_PATH. ignore AS4_PATH")
+		return nil
+	}
+
+	keepNum := asLen + asConfedLen - as4Len
+
+	newParams := make([]bgp.AsPathParamInterface, 0, len(asAttr.Value))
+	for _, param := range asParams {
+		if keepNum-param.ASLen() >= 0 {
+			newParams = append(newParams, param)
+			keepNum -= param.ASLen()
+		} else {
+			// only SEQ param reaches here
+			newParams = append(newParams, bgp.NewAs4PathParam(param.GetType(), param.GetAS()[:keepNum]))
+			keepNum = 0
+		}
+
+		if keepNum <= 0 {
+			break
+		}
+	}
+
+	for _, param := range as4Params {
+		lastParam := newParams[len(newParams)-1]
+		lastParamAS := lastParam.GetAS()
+		paramType := param.GetType()
+		paramAS := param.GetAS()
+		if paramType == lastParam.GetType() && paramType == bgp.BGP_ASPATH_ATTR_TYPE_SEQ {
+			if len(lastParamAS)+len(paramAS) > 255 {
+				newParams[len(newParams)-1] = bgp.NewAs4PathParam(paramType, append(lastParamAS, paramAS[:255-len(lastParamAS)]...))
+				newParams = append(newParams, bgp.NewAs4PathParam(paramType, paramAS[255-len(lastParamAS):]))
+			} else {
+				newParams[len(newParams)-1] = bgp.NewAs4PathParam(paramType, append(lastParamAS, paramAS...))
+			}
+		} else {
+			newParams = append(newParams, param)
+		}
+	}
+
+	newIntfParams := make([]bgp.AsPathParamInterface, 0, len(asAttr.Value))
+	newIntfParams = append(newIntfParams, newParams...)
+
+	msg.PathAttributes[asAttrPos] = bgp.NewPathAttributeAsPath(newIntfParams)
+	return nil
+}
+
+func UpdatePathAggregator2ByteAs(msg *bgp.BGPUpdate) {
+	as := uint32(0)
+	var addr string
+	for i, attr := range msg.PathAttributes {
+		switch attr.(type) {
+		case *bgp.PathAttributeAggregator:
+			agg := attr.(*bgp.PathAttributeAggregator)
+			addr = agg.Value.Address.String()
+			if agg.Value.AS > (1<<16)-1 {
+				as = agg.Value.AS
+				msg.PathAttributes[i] = bgp.NewPathAttributeAggregator(uint16(bgp.AS_TRANS), addr)
+			} else {
+				msg.PathAttributes[i] = bgp.NewPathAttributeAggregator(uint16(agg.Value.AS), addr)
+			}
+		}
+	}
+	if as != 0 {
+		msg.PathAttributes = append(msg.PathAttributes, bgp.NewPathAttributeAs4Aggregator(as, addr))
+	}
+}
+
+func UpdatePathAggregator4ByteAs(msg *bgp.BGPUpdate) error {
+	var aggAttr *bgp.PathAttributeAggregator
+	var agg4Attr *bgp.PathAttributeAs4Aggregator
+	agg4AttrPos := 0
+	for i, attr := range msg.PathAttributes {
+		switch attr.(type) {
+		case *bgp.PathAttributeAggregator:
+			attr := attr.(*bgp.PathAttributeAggregator)
+			if attr.Value.Askind == reflect.Uint16 {
+				aggAttr = attr
+				aggAttr.Value.Askind = reflect.Uint32
+			}
+		case *bgp.PathAttributeAs4Aggregator:
+			agg4Attr = attr.(*bgp.PathAttributeAs4Aggregator)
+			agg4AttrPos = i
+		}
+	}
+	if aggAttr == nil && agg4Attr == nil {
+		return nil
+	}
+
+	if aggAttr == nil && agg4Attr != nil {
+		return bgp.NewMessageError(bgp.BGP_ERROR_UPDATE_MESSAGE_ERROR, bgp.BGP_ERROR_SUB_MALFORMED_ATTRIBUTE_LIST, nil, "AS4 AGGREGATOR attribute exists, but AGGREGATOR doesn't")
+	}
+
+	if agg4Attr != nil {
+		msg.PathAttributes = append(msg.PathAttributes[:agg4AttrPos], msg.PathAttributes[agg4AttrPos+1:]...)
+		aggAttr.Value.AS = agg4Attr.Value.AS
+	}
+	return nil
+}
+
+type cage struct {
+	attrsBytes []byte
+	paths      []*Path
+}
+
+func newCage(b []byte, path *Path) *cage {
+	return &cage{
+		attrsBytes: b,
+		paths:      []*Path{path},
+	}
+}
+
+type packerInterface interface {
+	add(*Path)
+	pack(options ...*bgp.MarshallingOption) []*bgp.BGPMessage
+}
+
+type packer struct {
+	eof    bool
+	family bgp.RouteFamily
+	total  uint32
+}
+
+type packerMP struct {
+	packer
+	paths       []*Path
+	withdrawals []*Path
+}
+
+func (p *packerMP) add(path *Path) {
+	p.packer.total++
+
+	if path.IsEOR() {
+		p.packer.eof = true
+		return
+	}
+
+	if path.IsWithdraw {
+		p.withdrawals = append(p.withdrawals, path)
+		return
+	}
+
+	p.paths = append(p.paths, path)
+}
+
+func createMPReachMessage(path *Path) *bgp.BGPMessage {
+	oattrs := path.GetPathAttrs()
+	attrs := make([]bgp.PathAttributeInterface, 0, len(oattrs))
+	for _, a := range oattrs {
+		if a.GetType() == bgp.BGP_ATTR_TYPE_MP_REACH_NLRI {
+			attrs = append(attrs, bgp.NewPathAttributeMpReachNLRI(path.GetNexthop().String(), []bgp.AddrPrefixInterface{path.GetNlri()}))
+		} else {
+			attrs = append(attrs, a)
+		}
+	}
+	return bgp.NewBGPUpdateMessage(nil, attrs, nil)
+}
+
+func (p *packerMP) pack(options ...*bgp.MarshallingOption) []*bgp.BGPMessage {
+	msgs := make([]*bgp.BGPMessage, 0, p.packer.total)
+
+	for _, path := range p.withdrawals {
+		nlris := []bgp.AddrPrefixInterface{path.GetNlri()}
+		msgs = append(msgs, bgp.NewBGPUpdateMessage(nil, []bgp.PathAttributeInterface{bgp.NewPathAttributeMpUnreachNLRI(nlris)}, nil))
+	}
+
+	for _, path := range p.paths {
+		msgs = append(msgs, createMPReachMessage(path))
+	}
+
+	if p.eof {
+		msgs = append(msgs, bgp.NewEndOfRib(p.family))
+	}
+	return msgs
+}
+
+func newPackerMP(f bgp.RouteFamily) *packerMP {
+	return &packerMP{
+		packer: packer{
+			family: f,
+		},
+		withdrawals: make([]*Path, 0),
+		paths:       make([]*Path, 0),
+	}
+}
+
+type packerV4 struct {
+	packer
+	hashmap     map[uint32][]*cage
+	mpPaths     []*Path
+	withdrawals []*Path
+}
+
+func (p *packerV4) add(path *Path) {
+	p.packer.total++
+
+	if path.IsEOR() {
+		p.packer.eof = true
+		return
+	}
+
+	if path.IsWithdraw {
+		p.withdrawals = append(p.withdrawals, path)
+		return
+	}
+
+	if path.GetNexthop().To4() == nil {
+		// RFC 5549
+		p.mpPaths = append(p.mpPaths, path)
+		return
+	}
+
+	key := path.GetHash()
+	attrsB := bytes.NewBuffer(make([]byte, 0))
+	for _, v := range path.GetPathAttrs() {
+		b, _ := v.Serialize()
+		attrsB.Write(b)
+	}
+
+	if cages, y := p.hashmap[key]; y {
+		added := false
+		for _, c := range cages {
+			if bytes.Equal(c.attrsBytes, attrsB.Bytes()) {
+				c.paths = append(c.paths, path)
+				added = true
+				break
+			}
+		}
+		if !added {
+			p.hashmap[key] = append(p.hashmap[key], newCage(attrsB.Bytes(), path))
+		}
+	} else {
+		p.hashmap[key] = []*cage{newCage(attrsB.Bytes(), path)}
+	}
+}
+
+func (p *packerV4) pack(options ...*bgp.MarshallingOption) []*bgp.BGPMessage {
+	split := func(max int, paths []*Path) ([]*bgp.IPAddrPrefix, []*Path) {
+		nlris := make([]*bgp.IPAddrPrefix, 0, max)
+		i := 0
+		if max > len(paths) {
+			max = len(paths)
+		}
+		for ; i < max; i++ {
+			nlris = append(nlris, paths[i].GetNlri().(*bgp.IPAddrPrefix))
+		}
+		return nlris, paths[i:]
+	}
+	addpathNLRILen := 0
+	if bgp.IsAddPathEnabled(false, p.packer.family, options) {
+		addpathNLRILen = 4
+	}
+	// Header + Update (WithdrawnRoutesLen +
+	// TotalPathAttributeLen + attributes + maxlen of NLRI).
+	// the max size of NLRI is 5bytes (plus 4bytes with addpath enabled)
+	maxNLRIs := func(attrsLen int) int {
+		return (bgp.BGP_MAX_MESSAGE_LENGTH - (19 + 2 + 2 + attrsLen)) / (5 + addpathNLRILen)
+	}
+
+	loop := func(attrsLen int, paths []*Path, cb func([]*bgp.IPAddrPrefix)) {
+		max := maxNLRIs(attrsLen)
+		var nlris []*bgp.IPAddrPrefix
+		for {
+			nlris, paths = split(max, paths)
+			if len(nlris) == 0 {
+				break
+			}
+			cb(nlris)
+		}
+	}
+
+	msgs := make([]*bgp.BGPMessage, 0, p.packer.total)
+
+	loop(0, p.withdrawals, func(nlris []*bgp.IPAddrPrefix) {
+		msgs = append(msgs, bgp.NewBGPUpdateMessage(nlris, nil, nil))
+	})
+
+	for _, cages := range p.hashmap {
+		for _, c := range cages {
+			paths := c.paths
+
+			attrs := paths[0].GetPathAttrs()
+			attrsLen := 0
+			for _, a := range attrs {
+				attrsLen += a.Len()
+			}
+
+			loop(attrsLen, paths, func(nlris []*bgp.IPAddrPrefix) {
+				msgs = append(msgs, bgp.NewBGPUpdateMessage(nil, attrs, nlris))
+			})
+		}
+	}
+
+	for _, path := range p.mpPaths {
+		msgs = append(msgs, createMPReachMessage(path))
+	}
+
+	if p.eof {
+		msgs = append(msgs, bgp.NewEndOfRib(p.family))
+	}
+	return msgs
+}
+
+func newPackerV4(f bgp.RouteFamily) *packerV4 {
+	return &packerV4{
+		packer: packer{
+			family: f,
+		},
+		hashmap:     make(map[uint32][]*cage),
+		withdrawals: make([]*Path, 0),
+		mpPaths:     make([]*Path, 0),
+	}
+}
+
+func newPacker(f bgp.RouteFamily) packerInterface {
+	switch f {
+	case bgp.RF_IPv4_UC:
+		return newPackerV4(bgp.RF_IPv4_UC)
+	default:
+		return newPackerMP(f)
+	}
+}
+
+func CreateUpdateMsgFromPaths(pathList []*Path, options ...*bgp.MarshallingOption) []*bgp.BGPMessage {
+	msgs := make([]*bgp.BGPMessage, 0, len(pathList))
+
+	m := make(map[bgp.RouteFamily]packerInterface)
+	for _, path := range pathList {
+		f := path.GetRouteFamily()
+		if _, y := m[f]; !y {
+			m[f] = newPacker(f)
+		}
+		m[f].add(path)
+	}
+
+	for _, p := range m {
+		msgs = append(msgs, p.pack(options...)...)
+	}
+	return msgs
+}

vendor/github.com/osrg/gobgp/internal/pkg/table/roa.go

@@ -0,0 +1,60 @@
+// Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package table
+
+import (
+	"fmt"
+	"net"
+)
+
+type IPPrefix struct {
+	Prefix net.IP
+	Length uint8
+}
+
+func (p *IPPrefix) String() string {
+	return fmt.Sprintf("%s/%d", p.Prefix, p.Length)
+}
+
+type ROA struct {
+	Family int
+	Prefix *IPPrefix
+	MaxLen uint8
+	AS     uint32
+	Src    string
+}
+
+func NewROA(family int, prefixByte []byte, prefixLen uint8, maxLen uint8, as uint32, src string) *ROA {
+	p := make([]byte, len(prefixByte))
+	copy(p, prefixByte)
+	return &ROA{
+		Family: family,
+		Prefix: &IPPrefix{
+			Prefix: p,
+			Length: prefixLen,
+		},
+		MaxLen: maxLen,
+		AS:     as,
+		Src:    src,
+	}
+}
+
+func (r *ROA) Equal(roa *ROA) bool {
+	if r.MaxLen == roa.MaxLen && r.Src == roa.Src && r.AS == roa.AS {
+		return true
+	}
+	return false
+}

vendor/github.com/osrg/gobgp/internal/pkg/table/table.go

@@ -0,0 +1,451 @@
+// Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package table
+
+import (
+	"fmt"
+	"net"
+	"strings"
+	"unsafe"
+
+	"github.com/armon/go-radix"
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+	log "github.com/sirupsen/logrus"
+)
+
+type LookupOption uint8
+
+const (
+	LOOKUP_EXACT LookupOption = iota
+	LOOKUP_LONGER
+	LOOKUP_SHORTER
+)
+
+type LookupPrefix struct {
+	Prefix string
+	LookupOption
+}
+
+type TableSelectOption struct {
+	ID             string
+	AS             uint32
+	LookupPrefixes []*LookupPrefix
+	VRF            *Vrf
+	adj            bool
+	Best           bool
+	MultiPath      bool
+}
+
+type Table struct {
+	routeFamily  bgp.RouteFamily
+	destinations map[string]*Destination
+}
+
+func NewTable(rf bgp.RouteFamily, dsts ...*Destination) *Table {
+	t := &Table{
+		routeFamily:  rf,
+		destinations: make(map[string]*Destination),
+	}
+	for _, dst := range dsts {
+		t.setDestination(dst)
+	}
+	return t
+}
+
+func (t *Table) GetRoutefamily() bgp.RouteFamily {
+	return t.routeFamily
+}
+
+func (t *Table) deletePathsByVrf(vrf *Vrf) []*Path {
+	pathList := make([]*Path, 0)
+	for _, dest := range t.destinations {
+		for _, p := range dest.knownPathList {
+			var rd bgp.RouteDistinguisherInterface
+			nlri := p.GetNlri()
+			switch nlri.(type) {
+			case *bgp.LabeledVPNIPAddrPrefix:
+				rd = nlri.(*bgp.LabeledVPNIPAddrPrefix).RD
+			case *bgp.LabeledVPNIPv6AddrPrefix:
+				rd = nlri.(*bgp.LabeledVPNIPv6AddrPrefix).RD
+			case *bgp.EVPNNLRI:
+				rd = nlri.(*bgp.EVPNNLRI).RD()
+			default:
+				return pathList
+			}
+			if p.IsLocal() && vrf.Rd.String() == rd.String() {
+				pathList = append(pathList, p.Clone(true))
+				break
+			}
+		}
+	}
+	return pathList
+}
+
+func (t *Table) deleteRTCPathsByVrf(vrf *Vrf, vrfs map[string]*Vrf) []*Path {
+	pathList := make([]*Path, 0)
+	if t.routeFamily != bgp.RF_RTC_UC {
+		return pathList
+	}
+	for _, target := range vrf.ImportRt {
+		lhs := target.String()
+		for _, dest := range t.destinations {
+			nlri := dest.GetNlri().(*bgp.RouteTargetMembershipNLRI)
+			rhs := nlri.RouteTarget.String()
+			if lhs == rhs && isLastTargetUser(vrfs, target) {
+				for _, p := range dest.knownPathList {
+					if p.IsLocal() {
+						pathList = append(pathList, p.Clone(true))
+						break
+					}
+				}
+			}
+		}
+	}
+	return pathList
+}
+
+func (t *Table) deleteDestByNlri(nlri bgp.AddrPrefixInterface) *Destination {
+	if dst := t.GetDestination(nlri); dst != nil {
+		t.deleteDest(dst)
+		return dst
+	}
+	return nil
+}
+
+func (t *Table) deleteDest(dest *Destination) {
+	destinations := t.GetDestinations()
+	delete(destinations, t.tableKey(dest.GetNlri()))
+	if len(destinations) == 0 {
+		t.destinations = make(map[string]*Destination)
+	}
+}
+
+func (t *Table) validatePath(path *Path) {
+	if path == nil {
+		log.WithFields(log.Fields{
+			"Topic": "Table",
+			"Key":   t.routeFamily,
+		}).Error("path is nil")
+	}
+	if path.GetRouteFamily() != t.routeFamily {
+		log.WithFields(log.Fields{
+			"Topic":      "Table",
+			"Key":        t.routeFamily,
+			"Prefix":     path.GetNlri().String(),
+			"ReceivedRf": path.GetRouteFamily().String(),
+		}).Error("Invalid path. RouteFamily mismatch")
+	}
+	if attr := path.getPathAttr(bgp.BGP_ATTR_TYPE_AS_PATH); attr != nil {
+		pathParam := attr.(*bgp.PathAttributeAsPath).Value
+		for _, as := range pathParam {
+			_, y := as.(*bgp.As4PathParam)
+			if !y {
+				log.WithFields(log.Fields{
+					"Topic": "Table",
+					"Key":   t.routeFamily,
+					"As":    as,
+				}).Fatal("AsPathParam must be converted to As4PathParam")
+			}
+		}
+	}
+	if attr := path.getPathAttr(bgp.BGP_ATTR_TYPE_AS4_PATH); attr != nil {
+		log.WithFields(log.Fields{
+			"Topic": "Table",
+			"Key":   t.routeFamily,
+		}).Fatal("AS4_PATH must be converted to AS_PATH")
+	}
+	if path.GetNlri() == nil {
+		log.WithFields(log.Fields{
+			"Topic": "Table",
+			"Key":   t.routeFamily,
+		}).Fatal("path's nlri is nil")
+	}
+}
+
+func (t *Table) getOrCreateDest(nlri bgp.AddrPrefixInterface) *Destination {
+	dest := t.GetDestination(nlri)
+	// If destination for given prefix does not exist we create it.
+	if dest == nil {
+		log.WithFields(log.Fields{
+			"Topic": "Table",
+			"Nlri":  nlri,
+		}).Debugf("create Destination")
+		dest = NewDestination(nlri, 64)
+		t.setDestination(dest)
+	}
+	return dest
+}
+
+func (t *Table) GetDestinations() map[string]*Destination {
+	return t.destinations
+}
+func (t *Table) setDestinations(destinations map[string]*Destination) {
+	t.destinations = destinations
+}
+func (t *Table) GetDestination(nlri bgp.AddrPrefixInterface) *Destination {
+	dest, ok := t.destinations[t.tableKey(nlri)]
+	if ok {
+		return dest
+	} else {
+		return nil
+	}
+}
+
+func (t *Table) GetLongerPrefixDestinations(key string) ([]*Destination, error) {
+	results := make([]*Destination, 0, len(t.GetDestinations()))
+	switch t.routeFamily {
+	case bgp.RF_IPv4_UC, bgp.RF_IPv6_UC, bgp.RF_IPv4_MPLS, bgp.RF_IPv6_MPLS:
+		_, prefix, err := net.ParseCIDR(key)
+		if err != nil {
+			return nil, err
+		}
+		k := CidrToRadixkey(prefix.String())
+		r := radix.New()
+		for _, dst := range t.GetDestinations() {
+			r.Insert(AddrToRadixkey(dst.nlri), dst)
+		}
+		r.WalkPrefix(k, func(s string, v interface{}) bool {
+			results = append(results, v.(*Destination))
+			return false
+		})
+	default:
+		for _, dst := range t.GetDestinations() {
+			results = append(results, dst)
+		}
+	}
+	return results, nil
+}
+
+func (t *Table) GetEvpnDestinationsWithRouteType(typ string) ([]*Destination, error) {
+	var routeType uint8
+	switch strings.ToLower(typ) {
+	case "a-d":
+		routeType = bgp.EVPN_ROUTE_TYPE_ETHERNET_AUTO_DISCOVERY
+	case "macadv":
+		routeType = bgp.EVPN_ROUTE_TYPE_MAC_IP_ADVERTISEMENT
+	case "multicast":
+		routeType = bgp.EVPN_INCLUSIVE_MULTICAST_ETHERNET_TAG
+	case "esi":
+		routeType = bgp.EVPN_ETHERNET_SEGMENT_ROUTE
+	case "prefix":
+		routeType = bgp.EVPN_IP_PREFIX
+	default:
+		return nil, fmt.Errorf("unsupported evpn route type: %s", typ)
+	}
+	destinations := t.GetDestinations()
+	results := make([]*Destination, 0, len(destinations))
+	switch t.routeFamily {
+	case bgp.RF_EVPN:
+		for _, dst := range destinations {
+			if nlri, ok := dst.nlri.(*bgp.EVPNNLRI); !ok {
+				return nil, fmt.Errorf("invalid evpn nlri type detected: %T", dst.nlri)
+			} else if nlri.RouteType == routeType {
+				results = append(results, dst)
+			}
+		}
+	default:
+		for _, dst := range destinations {
+			results = append(results, dst)
+		}
+	}
+	return results, nil
+}
+
+func (t *Table) setDestination(dst *Destination) {
+	t.destinations[t.tableKey(dst.nlri)] = dst
+}
+
+func (t *Table) tableKey(nlri bgp.AddrPrefixInterface) string {
+	switch T := nlri.(type) {
+	case *bgp.IPAddrPrefix:
+		b := make([]byte, 5)
+		copy(b, T.Prefix.To4())
+		b[4] = T.Length
+		return *(*string)(unsafe.Pointer(&b))
+	case *bgp.IPv6AddrPrefix:
+		b := make([]byte, 17)
+		copy(b, T.Prefix.To16())
+		b[16] = T.Length
+		return *(*string)(unsafe.Pointer(&b))
+	}
+	return nlri.String()
+}
+
+func (t *Table) Bests(id string, as uint32) []*Path {
+	paths := make([]*Path, 0, len(t.destinations))
+	for _, dst := range t.destinations {
+		path := dst.GetBestPath(id, as)
+		if path != nil {
+			paths = append(paths, path)
+		}
+	}
+	return paths
+}
+
+func (t *Table) MultiBests(id string) [][]*Path {
+	paths := make([][]*Path, 0, len(t.destinations))
+	for _, dst := range t.destinations {
+		path := dst.GetMultiBestPath(id)
+		if path != nil {
+			paths = append(paths, path)
+		}
+	}
+	return paths
+}
+
+func (t *Table) GetKnownPathList(id string, as uint32) []*Path {
+	paths := make([]*Path, 0, len(t.destinations))
+	for _, dst := range t.destinations {
+		paths = append(paths, dst.GetKnownPathList(id, as)...)
+	}
+	return paths
+}
+
+func (t *Table) Select(option ...TableSelectOption) (*Table, error) {
+	id := GLOBAL_RIB_NAME
+	var vrf *Vrf
+	adj := false
+	prefixes := make([]*LookupPrefix, 0, len(option))
+	best := false
+	mp := false
+	as := uint32(0)
+	for _, o := range option {
+		if o.ID != "" {
+			id = o.ID
+		}
+		if o.VRF != nil {
+			vrf = o.VRF
+		}
+		adj = o.adj
+		prefixes = append(prefixes, o.LookupPrefixes...)
+		best = o.Best
+		mp = o.MultiPath
+		as = o.AS
+	}
+	dOption := DestinationSelectOption{ID: id, AS: as, VRF: vrf, adj: adj, Best: best, MultiPath: mp}
+	r := &Table{
+		routeFamily:  t.routeFamily,
+		destinations: make(map[string]*Destination),
+	}
+
+	if len(prefixes) != 0 {
+		switch t.routeFamily {
+		case bgp.RF_IPv4_UC, bgp.RF_IPv6_UC:
+			f := func(prefixStr string) bool {
+				var nlri bgp.AddrPrefixInterface
+				if t.routeFamily == bgp.RF_IPv4_UC {
+					nlri, _ = bgp.NewPrefixFromRouteFamily(bgp.AFI_IP, bgp.SAFI_UNICAST, prefixStr)
+				} else {
+					nlri, _ = bgp.NewPrefixFromRouteFamily(bgp.AFI_IP6, bgp.SAFI_UNICAST, prefixStr)
+				}
+				if dst := t.GetDestination(nlri); dst != nil {
+					if d := dst.Select(dOption); d != nil {
+						r.setDestination(d)
+						return true
+					}
+				}
+				return false
+			}
+
+			for _, p := range prefixes {
+				key := p.Prefix
+				switch p.LookupOption {
+				case LOOKUP_LONGER:
+					ds, err := t.GetLongerPrefixDestinations(key)
+					if err != nil {
+						return nil, err
+					}
+					for _, dst := range ds {
+						if d := dst.Select(dOption); d != nil {
+							r.setDestination(d)
+						}
+					}
+				case LOOKUP_SHORTER:
+					addr, prefix, err := net.ParseCIDR(key)
+					if err != nil {
+						return nil, err
+					}
+					ones, _ := prefix.Mask.Size()
+					for i := ones; i >= 0; i-- {
+						_, prefix, _ := net.ParseCIDR(fmt.Sprintf("%s/%d", addr.String(), i))
+						f(prefix.String())
+					}
+				default:
+					if host := net.ParseIP(key); host != nil {
+						masklen := 32
+						if t.routeFamily == bgp.RF_IPv6_UC {
+							masklen = 128
+						}
+						for i := masklen; i >= 0; i-- {
+							_, prefix, err := net.ParseCIDR(fmt.Sprintf("%s/%d", key, i))
+							if err != nil {
+								return nil, err
+							}
+							if f(prefix.String()) {
+								break
+							}
+						}
+					} else {
+						f(key)
+					}
+				}
+			}
+		case bgp.RF_EVPN:
+			for _, p := range prefixes {
+				// Uses LookupPrefix.Prefix as EVPN Route Type string
+				ds, err := t.GetEvpnDestinationsWithRouteType(p.Prefix)
+				if err != nil {
+					return nil, err
+				}
+				for _, dst := range ds {
+					if d := dst.Select(dOption); d != nil {
+						r.setDestination(d)
+					}
+				}
+			}
+		default:
+			return nil, fmt.Errorf("route filtering is not supported for this family")
+		}
+	} else {
+		for _, dst := range t.GetDestinations() {
+			if d := dst.Select(dOption); d != nil {
+				r.setDestination(d)
+			}
+		}
+	}
+	return r, nil
+}
+
+type TableInfo struct {
+	NumDestination int
+	NumPath        int
+	NumAccepted    int
+}
+
+func (t *Table) Info(id string, as uint32) *TableInfo {
+	var numD, numP int
+	for _, d := range t.destinations {
+		ps := d.GetKnownPathList(id, as)
+		if len(ps) > 0 {
+			numD += 1
+			numP += len(ps)
+		}
+	}
+	return &TableInfo{
+		NumDestination: numD,
+		NumPath:        numP,
+	}
+}

vendor/github.com/osrg/gobgp/internal/pkg/table/table_manager.go

@@ -0,0 +1,370 @@
+// Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package table
+
+import (
+	"bytes"
+	"fmt"
+	"net"
+	"time"
+
+	farm "github.com/dgryski/go-farm"
+	log "github.com/sirupsen/logrus"
+
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+)
+
+const (
+	GLOBAL_RIB_NAME = "global"
+)
+
+func ProcessMessage(m *bgp.BGPMessage, peerInfo *PeerInfo, timestamp time.Time) []*Path {
+	update := m.Body.(*bgp.BGPUpdate)
+
+	if y, f := update.IsEndOfRib(); y {
+		// this message has no normal updates or withdrawals.
+		return []*Path{NewEOR(f)}
+	}
+
+	adds := make([]bgp.AddrPrefixInterface, 0, len(update.NLRI))
+	for _, nlri := range update.NLRI {
+		adds = append(adds, nlri)
+	}
+
+	dels := make([]bgp.AddrPrefixInterface, 0, len(update.WithdrawnRoutes))
+	for _, nlri := range update.WithdrawnRoutes {
+		dels = append(dels, nlri)
+	}
+
+	attrs := make([]bgp.PathAttributeInterface, 0, len(update.PathAttributes))
+	var reach *bgp.PathAttributeMpReachNLRI
+	for _, attr := range update.PathAttributes {
+		switch a := attr.(type) {
+		case *bgp.PathAttributeMpReachNLRI:
+			reach = a
+		case *bgp.PathAttributeMpUnreachNLRI:
+			l := make([]bgp.AddrPrefixInterface, 0, len(a.Value))
+			l = append(l, a.Value...)
+			dels = append(dels, l...)
+		default:
+			attrs = append(attrs, attr)
+		}
+	}
+
+	listLen := len(adds) + len(dels)
+	if reach != nil {
+		listLen += len(reach.Value)
+	}
+
+	var hash uint32
+	if len(adds) > 0 || reach != nil {
+		total := bytes.NewBuffer(make([]byte, 0))
+		for _, a := range attrs {
+			b, _ := a.Serialize()
+			total.Write(b)
+		}
+		hash = farm.Hash32(total.Bytes())
+	}
+
+	pathList := make([]*Path, 0, listLen)
+	for _, nlri := range adds {
+		p := NewPath(peerInfo, nlri, false, attrs, timestamp, false)
+		p.SetHash(hash)
+		pathList = append(pathList, p)
+	}
+	if reach != nil {
+		reachAttrs := make([]bgp.PathAttributeInterface, len(attrs)+1)
+		copy(reachAttrs, attrs)
+		// we sort attributes when creating a bgp message from paths
+		reachAttrs[len(reachAttrs)-1] = reach
+
+		for _, nlri := range reach.Value {
+			p := NewPath(peerInfo, nlri, false, reachAttrs, timestamp, false)
+			p.SetHash(hash)
+			pathList = append(pathList, p)
+		}
+	}
+	for _, nlri := range dels {
+		p := NewPath(peerInfo, nlri, true, []bgp.PathAttributeInterface{}, timestamp, false)
+		pathList = append(pathList, p)
+	}
+	return pathList
+}
+
+type TableManager struct {
+	Tables map[bgp.RouteFamily]*Table
+	Vrfs   map[string]*Vrf
+	rfList []bgp.RouteFamily
+}
+
+func NewTableManager(rfList []bgp.RouteFamily) *TableManager {
+	t := &TableManager{
+		Tables: make(map[bgp.RouteFamily]*Table),
+		Vrfs:   make(map[string]*Vrf),
+		rfList: rfList,
+	}
+	for _, rf := range rfList {
+		t.Tables[rf] = NewTable(rf)
+	}
+	return t
+}
+
+func (manager *TableManager) GetRFlist() []bgp.RouteFamily {
+	return manager.rfList
+}
+
+func (manager *TableManager) AddVrf(name string, id uint32, rd bgp.RouteDistinguisherInterface, importRt, exportRt []bgp.ExtendedCommunityInterface, info *PeerInfo) ([]*Path, error) {
+	if _, ok := manager.Vrfs[name]; ok {
+		return nil, fmt.Errorf("vrf %s already exists", name)
+	}
+	log.WithFields(log.Fields{
+		"Topic":    "Vrf",
+		"Key":      name,
+		"Rd":       rd,
+		"ImportRt": importRt,
+		"ExportRt": exportRt,
+	}).Debugf("add vrf")
+	manager.Vrfs[name] = &Vrf{
+		Name:     name,
+		Id:       id,
+		Rd:       rd,
+		ImportRt: importRt,
+		ExportRt: exportRt,
+	}
+	msgs := make([]*Path, 0, len(importRt))
+	nexthop := "0.0.0.0"
+	for _, target := range importRt {
+		nlri := bgp.NewRouteTargetMembershipNLRI(info.AS, target)
+		pattr := make([]bgp.PathAttributeInterface, 0, 2)
+		pattr = append(pattr, bgp.NewPathAttributeOrigin(bgp.BGP_ORIGIN_ATTR_TYPE_IGP))
+		pattr = append(pattr, bgp.NewPathAttributeMpReachNLRI(nexthop, []bgp.AddrPrefixInterface{nlri}))
+		msgs = append(msgs, NewPath(info, nlri, false, pattr, time.Now(), false))
+	}
+	return msgs, nil
+}
+
+func (manager *TableManager) DeleteVrf(name string) ([]*Path, error) {
+	if _, ok := manager.Vrfs[name]; !ok {
+		return nil, fmt.Errorf("vrf %s not found", name)
+	}
+	msgs := make([]*Path, 0)
+	vrf := manager.Vrfs[name]
+	for _, t := range manager.Tables {
+		msgs = append(msgs, t.deletePathsByVrf(vrf)...)
+	}
+	log.WithFields(log.Fields{
+		"Topic":    "Vrf",
+		"Key":      vrf.Name,
+		"Rd":       vrf.Rd,
+		"ImportRt": vrf.ImportRt,
+		"ExportRt": vrf.ExportRt,
+	}).Debugf("delete vrf")
+	delete(manager.Vrfs, name)
+	rtcTable := manager.Tables[bgp.RF_RTC_UC]
+	msgs = append(msgs, rtcTable.deleteRTCPathsByVrf(vrf, manager.Vrfs)...)
+	return msgs, nil
+}
+
+func (tm *TableManager) update(newPath *Path) *Update {
+	t := tm.Tables[newPath.GetRouteFamily()]
+	t.validatePath(newPath)
+	dst := t.getOrCreateDest(newPath.GetNlri())
+	u := dst.Calculate(newPath)
+	if len(dst.knownPathList) == 0 {
+		t.deleteDest(dst)
+	}
+	return u
+}
+
+func (manager *TableManager) GetPathListByPeer(info *PeerInfo, rf bgp.RouteFamily) []*Path {
+	if t, ok := manager.Tables[rf]; ok {
+		pathList := make([]*Path, 0, len(t.destinations))
+		for _, dst := range t.destinations {
+			for _, p := range dst.knownPathList {
+				if p.GetSource().Equal(info) {
+					pathList = append(pathList, p)
+				}
+			}
+		}
+		return pathList
+	}
+	return nil
+}
+
+func (manager *TableManager) Update(newPath *Path) []*Update {
+	if newPath == nil || newPath.IsEOR() {
+		return nil
+	}
+
+	// Except for a special case with EVPN, we'll have one destination.
+	updates := make([]*Update, 0, 1)
+	family := newPath.GetRouteFamily()
+	if _, ok := manager.Tables[family]; ok {
+		updates = append(updates, manager.update(newPath))
+
+		if family == bgp.RF_EVPN {
+			for _, p := range manager.handleMacMobility(newPath) {
+				updates = append(updates, manager.update(p))
+			}
+		}
+	}
+	return updates
+}
+
+// EVPN MAC MOBILITY HANDLING
+//
+// RFC7432 15. MAC Mobility
+//
+// A PE receiving a MAC/IP Advertisement route for a MAC address with a
+// different Ethernet segment identifier and a higher sequence number
+// than that which it had previously advertised withdraws its MAC/IP
+// Advertisement route.
+func (manager *TableManager) handleMacMobility(path *Path) []*Path {
+	pathList := make([]*Path, 0)
+	nlri := path.GetNlri().(*bgp.EVPNNLRI)
+	if path.IsWithdraw || path.IsLocal() || nlri.RouteType != bgp.EVPN_ROUTE_TYPE_MAC_IP_ADVERTISEMENT {
+		return nil
+	}
+	for _, path2 := range manager.GetPathList(GLOBAL_RIB_NAME, 0, []bgp.RouteFamily{bgp.RF_EVPN}) {
+		if !path2.IsLocal() || path2.GetNlri().(*bgp.EVPNNLRI).RouteType != bgp.EVPN_ROUTE_TYPE_MAC_IP_ADVERTISEMENT {
+			continue
+		}
+		f := func(p *Path) (bgp.EthernetSegmentIdentifier, net.HardwareAddr, int) {
+			nlri := p.GetNlri().(*bgp.EVPNNLRI)
+			d := nlri.RouteTypeData.(*bgp.EVPNMacIPAdvertisementRoute)
+			ecs := p.GetExtCommunities()
+			seq := -1
+			for _, ec := range ecs {
+				if t, st := ec.GetTypes(); t == bgp.EC_TYPE_EVPN && st == bgp.EC_SUBTYPE_MAC_MOBILITY {
+					seq = int(ec.(*bgp.MacMobilityExtended).Sequence)
+					break
+				}
+			}
+			return d.ESI, d.MacAddress, seq
+		}
+		e1, m1, s1 := f(path)
+		e2, m2, s2 := f(path2)
+		if bytes.Equal(m1, m2) && !bytes.Equal(e1.Value, e2.Value) && s1 > s2 {
+			pathList = append(pathList, path2.Clone(true))
+		}
+	}
+	return pathList
+}
+
+func (manager *TableManager) tables(list ...bgp.RouteFamily) []*Table {
+	l := make([]*Table, 0, len(manager.Tables))
+	if len(list) == 0 {
+		for _, v := range manager.Tables {
+			l = append(l, v)
+		}
+		return l
+	}
+	for _, f := range list {
+		if t, ok := manager.Tables[f]; ok {
+			l = append(l, t)
+		}
+	}
+	return l
+}
+
+func (manager *TableManager) getDestinationCount(rfList []bgp.RouteFamily) int {
+	count := 0
+	for _, t := range manager.tables(rfList...) {
+		count += len(t.GetDestinations())
+	}
+	return count
+}
+
+func (manager *TableManager) GetBestPathList(id string, as uint32, rfList []bgp.RouteFamily) []*Path {
+	if SelectionOptions.DisableBestPathSelection {
+		// Note: If best path selection disabled, there is no best path.
+		return nil
+	}
+	paths := make([]*Path, 0, manager.getDestinationCount(rfList))
+	for _, t := range manager.tables(rfList...) {
+		paths = append(paths, t.Bests(id, as)...)
+	}
+	return paths
+}
+
+func (manager *TableManager) GetBestMultiPathList(id string, rfList []bgp.RouteFamily) [][]*Path {
+	if !UseMultiplePaths.Enabled || SelectionOptions.DisableBestPathSelection {
+		// Note: If multi path not enabled or best path selection disabled,
+		// there is no best multi path.
+		return nil
+	}
+	paths := make([][]*Path, 0, manager.getDestinationCount(rfList))
+	for _, t := range manager.tables(rfList...) {
+		paths = append(paths, t.MultiBests(id)...)
+	}
+	return paths
+}
+
+func (manager *TableManager) GetPathList(id string, as uint32, rfList []bgp.RouteFamily) []*Path {
+	paths := make([]*Path, 0, manager.getDestinationCount(rfList))
+	for _, t := range manager.tables(rfList...) {
+		paths = append(paths, t.GetKnownPathList(id, as)...)
+	}
+	return paths
+}
+
+func (manager *TableManager) GetPathListWithNexthop(id string, rfList []bgp.RouteFamily, nexthop net.IP) []*Path {
+	paths := make([]*Path, 0, manager.getDestinationCount(rfList))
+	for _, rf := range rfList {
+		if t, ok := manager.Tables[rf]; ok {
+			for _, path := range t.GetKnownPathList(id, 0) {
+				if path.GetNexthop().Equal(nexthop) {
+					paths = append(paths, path)
+				}
+			}
+		}
+	}
+	return paths
+}
+
+func (manager *TableManager) GetPathListWithSource(id string, rfList []bgp.RouteFamily, source *PeerInfo) []*Path {
+	paths := make([]*Path, 0, manager.getDestinationCount(rfList))
+	for _, rf := range rfList {
+		if t, ok := manager.Tables[rf]; ok {
+			for _, path := range t.GetKnownPathList(id, 0) {
+				if path.GetSource().Equal(source) {
+					paths = append(paths, path)
+				}
+			}
+		}
+	}
+	return paths
+}
+
+func (manager *TableManager) GetDestination(path *Path) *Destination {
+	if path == nil {
+		return nil
+	}
+	family := path.GetRouteFamily()
+	t, ok := manager.Tables[family]
+	if !ok {
+		return nil
+	}
+	return t.GetDestination(path.GetNlri())
+}
+
+func (manager *TableManager) TableInfo(id string, as uint32, family bgp.RouteFamily) (*TableInfo, error) {
+	t, ok := manager.Tables[family]
+	if !ok {
+		return nil, fmt.Errorf("address family %s is not configured", family)
+	}
+	return t.Info(id, as), nil
+}

vendor/github.com/osrg/gobgp/internal/pkg/table/vrf.go

@@ -0,0 +1,53 @@
+// Copyright (C) 2014-2016 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package table
+
+import (
+	"github.com/osrg/gobgp/pkg/packet/bgp"
+)
+
+type Vrf struct {
+	Name     string
+	Id       uint32
+	Rd       bgp.RouteDistinguisherInterface
+	ImportRt []bgp.ExtendedCommunityInterface
+	ExportRt []bgp.ExtendedCommunityInterface
+}
+
+func (v *Vrf) Clone() *Vrf {
+	f := func(rt []bgp.ExtendedCommunityInterface) []bgp.ExtendedCommunityInterface {
+		l := make([]bgp.ExtendedCommunityInterface, 0, len(rt))
+		return append(l, rt...)
+	}
+	return &Vrf{
+		Name:     v.Name,
+		Id:       v.Id,
+		Rd:       v.Rd,
+		ImportRt: f(v.ImportRt),
+		ExportRt: f(v.ExportRt),
+	}
+}
+
+func isLastTargetUser(vrfs map[string]*Vrf, target bgp.ExtendedCommunityInterface) bool {
+	for _, vrf := range vrfs {
+		for _, rt := range vrf.ImportRt {
+			if target.String() == rt.String() {
+				return false
+			}
+		}
+	}
+	return true
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/afi_string.go

@@ -0,0 +1,17 @@
+// Code generated by "stringer -type=AFI"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const _AFI_name = "AFI_IPAFI_IP6AFI_ETHERAFI_MAX"
+
+var _AFI_index = [...]uint8{0, 6, 13, 22, 29}
+
+func (i AFI) String() string {
+	i -= 1
+	if i >= AFI(len(_AFI_index)-1) {
+		return "AFI(" + strconv.FormatInt(int64(i+1), 10) + ")"
+	}
+	return _AFI_name[_AFI_index[i]:_AFI_index[i+1]]
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/api_type_string.go

@@ -0,0 +1,16 @@
+// Code generated by "stringer -type=API_TYPE"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const _API_TYPE_name = "FRR_ZAPI5_INTERFACE_ADDFRR_ZAPI5_INTERFACE_DELETEFRR_ZAPI5_INTERFACE_ADDRESS_ADDFRR_ZAPI5_INTERFACE_ADDRESS_DELETEFRR_ZAPI5_INTERFACE_UPFRR_ZAPI5_INTERFACE_DOWNFRR_ZAPI5_INTERFACE_SET_MASTERFRR_ZAPI5_ROUTE_ADDFRR_ZAPI5_ROUTE_DELETEFRR_ZAPI5_ROUTE_NOTIFY_OWNERFRR_ZAPI5_IPV4_ROUTE_ADDFRR_ZAPI5_IPV4_ROUTE_DELETEFRR_ZAPI5_IPV6_ROUTE_ADDFRR_ZAPI5_IPV6_ROUTE_DELETEFRR_ZAPI5_REDISTRIBUTE_ADDFRR_ZAPI5_REDISTRIBUTE_DELETEFRR_ZAPI5_REDISTRIBUTE_DEFAULT_ADDFRR_ZAPI5_REDISTRIBUTE_DEFAULT_DELETEFRR_ZAPI5_ROUTER_ID_ADDFRR_ZAPI5_ROUTER_ID_DELETEFRR_ZAPI5_ROUTER_ID_UPDATEFRR_ZAPI5_HELLOFRR_ZAPI5_CAPABILITIESFRR_ZAPI5_NEXTHOP_REGISTERFRR_ZAPI5_NEXTHOP_UNREGISTERFRR_ZAPI5_NEXTHOP_UPDATEFRR_ZAPI5_INTERFACE_NBR_ADDRESS_ADDFRR_ZAPI5_INTERFACE_NBR_ADDRESS_DELETEFRR_ZAPI5_INTERFACE_BFD_DEST_UPDATEFRR_ZAPI5_IMPORT_ROUTE_REGISTERFRR_ZAPI5_IMPORT_ROUTE_UNREGISTERFRR_ZAPI5_IMPORT_CHECK_UPDATEFRR_ZAPI5_IPV4_ROUTE_IPV6_NEXTHOP_ADDFRR_ZAPI5_BFD_DEST_REGISTERFRR_ZAPI5_BFD_DEST_DEREGISTERFRR_ZAPI5_BFD_DEST_UPDATEFRR_ZAPI5_BFD_DEST_REPLAYFRR_ZAPI5_REDISTRIBUTE_ROUTE_ADDFRR_ZAPI5_REDISTRIBUTE_ROUTE_DELFRR_ZAPI5_VRF_UNREGISTERFRR_ZAPI5_VRF_ADDFRR_ZAPI5_VRF_DELETEFRR_ZAPI5_VRF_LABELFRR_ZAPI5_INTERFACE_VRF_UPDATEFRR_ZAPI5_BFD_CLIENT_REGISTERFRR_ZAPI5_INTERFACE_ENABLE_RADVFRR_ZAPI5_INTERFACE_DISABLE_RADVFRR_ZAPI5_IPV4_NEXTHOP_LOOKUP_MRIBFRR_ZAPI5_INTERFACE_LINK_PARAMSFRR_ZAPI5_MPLS_LABELS_ADDFRR_ZAPI5_MPLS_LABELS_DELETEFRR_ZAPI5_IPMR_ROUTE_STATSFRR_ZAPI5_LABEL_MANAGER_CONNECTFRR_ZAPI5_GET_LABEL_CHUNKFRR_ZAPI5_RELEASE_LABEL_CHUNKFRR_ZAPI5_FEC_REGISTERFRR_ZAPI5_FEC_UNREGISTERFRR_ZAPI5_FEC_UPDATEFRR_ZAPI5_ADVERTISE_DEFAULT_GWFRR_ZAPI5_ADVERTISE_SUBNETFRR_ZAPI5_ADVERTISE_ALL_VNIFRR_ZAPI5_VNI_ADDFRR_ZAPI5_VNI_DELFRR_ZAPI5_L3VNI_ADDFRR_ZAPI5_L3VNI_DELFRR_ZAPI5_REMOTE_VTEP_ADDFRR_ZAPI5_REMOTE_VTEP_DELFRR_ZAPI5_MACIP_ADDFRR_ZAPI5_MACIP_DELFRR_ZAPI5_IP_PREFIX_ROUTE_ADDFRR_ZAPI5_IP_PREFIX_ROUTE_DELFRR_ZAPI5_REMOTE_MACIP_ADDFRR_ZAPI5_REMOTE_MACIP_DELFRR_ZAPI5_PW_ADDFRR_ZAPI5_PW_DELETEFRR_ZAPI5_PW_SETFRR_ZAPI5_PW_UNSETFRR_ZAPI5_PW_STATUS_UPDATEFRR_ZAPI5_RULE_ADDFRR_ZAPI5_RULE_DELETEFRR_ZAPI5_RULE_NOTIFY_OWNERFRR_ZAPI5_TABLE_MANAGER_CONNECTFRR_ZAPI5_GET_TABLE_CHUNKFRR_ZAPI5_RELEASE_TABLE_CHUNKFRR_ZAPI5_IPSET_CREATEFRR_ZAPI5_IPSET_DESTROYFRR_ZAPI5_IPSET_ENTRY_ADDFRR_ZAPI5_IPSET_ENTRY_DELETEFRR_ZAPI5_IPSET_NOTIFY_OWNERFRR_ZAPI5_IPSET_ENTRY_NOTIFY_OWNERFRR_ZAPI5_IPTABLE_ADDFRR_ZAPI5_IPTABLE_DELETEFRR_ZAPI5_IPTABLE_NOTIFY_OWNER"
+
+var _API_TYPE_index = [...]uint16{0, 23, 49, 80, 114, 136, 160, 190, 209, 231, 259, 283, 310, 334, 361, 387, 416, 450, 487, 510, 536, 562, 577, 599, 625, 653, 677, 712, 750, 785, 816, 849, 878, 915, 942, 971, 996, 1021, 1053, 1085, 1109, 1126, 1146, 1165, 1195, 1224, 1255, 1287, 1321, 1352, 1377, 1405, 1431, 1462, 1487, 1516, 1538, 1562, 1582, 1612, 1638, 1665, 1682, 1699, 1718, 1737, 1762, 1787, 1806, 1825, 1854, 1883, 1909, 1935, 1951, 1970, 1986, 2004, 2030, 2048, 2069, 2096, 2127, 2152, 2181, 2203, 2226, 2251, 2279, 2307, 2341, 2362, 2386, 2416}
+
+func (i API_TYPE) String() string {
+	if i >= API_TYPE(len(_API_TYPE_index)-1) {
+		return "API_TYPE(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _API_TYPE_name[_API_TYPE_index[i]:_API_TYPE_index[i+1]]
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/link_type_string.go

@@ -0,0 +1,16 @@
+// Code generated by "stringer -type=LINK_TYPE"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const _LINK_TYPE_name = "LINK_TYPE_UNKNOWNLINK_TYPE_ETHERLINK_TYPE_EETHERLINK_TYPE_AX25LINK_TYPE_PRONETLINK_TYPE_IEEE802LINK_TYPE_ARCNETLINK_TYPE_APPLETLKLINK_TYPE_DLCILINK_TYPE_ATMLINK_TYPE_METRICOMLINK_TYPE_IEEE1394LINK_TYPE_EUI64LINK_TYPE_INFINIBANDLINK_TYPE_SLIPLINK_TYPE_CSLIPLINK_TYPE_SLIP6LINK_TYPE_CSLIP6LINK_TYPE_RSRVDLINK_TYPE_ADAPTLINK_TYPE_ROSELINK_TYPE_X25LINK_TYPE_PPPLINK_TYPE_CHDLCLINK_TYPE_LAPBLINK_TYPE_RAWHDLCLINK_TYPE_IPIPLINK_TYPE_IPIP6LINK_TYPE_FRADLINK_TYPE_SKIPLINK_TYPE_LOOPBACKLINK_TYPE_LOCALTLKLINK_TYPE_FDDILINK_TYPE_SITLINK_TYPE_IPDDPLINK_TYPE_IPGRELINK_TYPE_IP6GRELINK_TYPE_PIMREGLINK_TYPE_HIPPILINK_TYPE_ECONETLINK_TYPE_IRDALINK_TYPE_FCPPLINK_TYPE_FCALLINK_TYPE_FCPLLINK_TYPE_FCFABRICLINK_TYPE_IEEE802_TRLINK_TYPE_IEEE80211LINK_TYPE_IEEE80211_RADIOTAPLINK_TYPE_IEEE802154LINK_TYPE_IEEE802154_PHY"
+
+var _LINK_TYPE_index = [...]uint16{0, 17, 32, 48, 62, 78, 95, 111, 129, 143, 156, 174, 192, 207, 227, 241, 256, 271, 287, 302, 317, 331, 344, 357, 372, 386, 403, 417, 432, 446, 460, 478, 496, 510, 523, 538, 553, 569, 585, 600, 616, 630, 644, 658, 672, 690, 710, 729, 757, 777, 801}
+
+func (i LINK_TYPE) String() string {
+	if i >= LINK_TYPE(len(_LINK_TYPE_index)-1) {
+		return "LINK_TYPE(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _LINK_TYPE_name[_LINK_TYPE_index[i]:_LINK_TYPE_index[i+1]]
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/nexthop_flag_string.go

@@ -0,0 +1,41 @@
+// Code generated by "stringer -type=NEXTHOP_FLAG"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const (
+	_NEXTHOP_FLAG_name_0 = "NEXTHOP_FLAG_ACTIVENEXTHOP_FLAG_FIB"
+	_NEXTHOP_FLAG_name_1 = "NEXTHOP_FLAG_RECURSIVE"
+	_NEXTHOP_FLAG_name_2 = "NEXTHOP_FLAG_ONLINK"
+	_NEXTHOP_FLAG_name_3 = "NEXTHOP_FLAG_MATCHED"
+	_NEXTHOP_FLAG_name_4 = "NEXTHOP_FLAG_FILTERED"
+	_NEXTHOP_FLAG_name_5 = "NEXTHOP_FLAG_DUPLICATE"
+	_NEXTHOP_FLAG_name_6 = "NEXTHOP_FLAG_EVPN_RVTEP"
+)
+
+var (
+	_NEXTHOP_FLAG_index_0 = [...]uint8{0, 19, 35}
+)
+
+func (i NEXTHOP_FLAG) String() string {
+	switch {
+	case 1 <= i && i <= 2:
+		i -= 1
+		return _NEXTHOP_FLAG_name_0[_NEXTHOP_FLAG_index_0[i]:_NEXTHOP_FLAG_index_0[i+1]]
+	case i == 4:
+		return _NEXTHOP_FLAG_name_1
+	case i == 8:
+		return _NEXTHOP_FLAG_name_2
+	case i == 16:
+		return _NEXTHOP_FLAG_name_3
+	case i == 32:
+		return _NEXTHOP_FLAG_name_4
+	case i == 64:
+		return _NEXTHOP_FLAG_name_5
+	case i == 128:
+		return _NEXTHOP_FLAG_name_6
+	default:
+		return "NEXTHOP_FLAG(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/nexthop_type_string.go

@@ -0,0 +1,17 @@
+// Code generated by "stringer -type=NEXTHOP_TYPE"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const _NEXTHOP_TYPE_name = "FRR_NEXTHOP_TYPE_IFINDEXFRR_NEXTHOP_TYPE_IPV4FRR_NEXTHOP_TYPE_IPV4_IFINDEXFRR_NEXTHOP_TYPE_IPV6FRR_NEXTHOP_TYPE_IPV6_IFINDEXFRR_NEXTHOP_TYPE_BLACKHOLENEXTHOP_TYPE_IPV6_IFINDEXNEXTHOP_TYPE_IPV6_IFNAMENEXTHOP_TYPE_BLACKHOLE"
+
+var _NEXTHOP_TYPE_index = [...]uint8{0, 24, 45, 74, 95, 124, 150, 175, 199, 221}
+
+func (i NEXTHOP_TYPE) String() string {
+	i -= 1
+	if i >= NEXTHOP_TYPE(len(_NEXTHOP_TYPE_index)-1) {
+		return "NEXTHOP_TYPE(" + strconv.FormatInt(int64(i+1), 10) + ")"
+	}
+	return _NEXTHOP_TYPE_name[_NEXTHOP_TYPE_index[i]:_NEXTHOP_TYPE_index[i+1]]
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/ptm_enable_string.go

@@ -0,0 +1,16 @@
+// Code generated by "stringer -type=PTM_ENABLE"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const _PTM_ENABLE_name = "PTM_ENABLE_OFFPTM_ENABLE_ONPTM_ENABLE_UNSPEC"
+
+var _PTM_ENABLE_index = [...]uint8{0, 14, 27, 44}
+
+func (i PTM_ENABLE) String() string {
+	if i >= PTM_ENABLE(len(_PTM_ENABLE_index)-1) {
+		return "PTM_ENABLE(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _PTM_ENABLE_name[_PTM_ENABLE_index[i]:_PTM_ENABLE_index[i+1]]
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/ptm_status_string.go

@@ -0,0 +1,16 @@
+// Code generated by "stringer -type=PTM_STATUS"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const _PTM_STATUS_name = "PTM_STATUS_DOWNPTM_STATUS_UPPTM_STATUS_UNKNOWN"
+
+var _PTM_STATUS_index = [...]uint8{0, 15, 28, 46}
+
+func (i PTM_STATUS) String() string {
+	if i >= PTM_STATUS(len(_PTM_STATUS_index)-1) {
+		return "PTM_STATUS(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _PTM_STATUS_name[_PTM_STATUS_index[i]:_PTM_STATUS_index[i+1]]
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/route_type_string.go

@@ -0,0 +1,16 @@
+// Code generated by "stringer -type=ROUTE_TYPE"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const _ROUTE_TYPE_name = "FRR_ZAPI5_ROUTE_SYSTEMFRR_ZAPI5_ROUTE_KERNELFRR_ZAPI5_ROUTE_CONNECTFRR_ZAPI5_ROUTE_STATICFRR_ZAPI5_ROUTE_RIPFRR_ZAPI5_ROUTE_RIPNGFRR_ZAPI5_ROUTE_OSPFFRR_ZAPI5_ROUTE_OSPF6FRR_ZAPI5_ROUTE_ISISFRR_ZAPI5_ROUTE_BGPFRR_ZAPI5_ROUTE_PIMFRR_ZAPI5_ROUTE_EIGRPFRR_ZAPI5_ROUTE_NHRPFRR_ZAPI5_ROUTE_HSLSFRR_ZAPI5_ROUTE_OLSRFRR_ZAPI5_ROUTE_TABLEFRR_ZAPI5_ROUTE_LDPFRR_ZAPI5_ROUTE_VNCFRR_ZAPI5_ROUTE_VNC_DIRECTFRR_ZAPI5_ROUTE_VNC_DIRECT_RHFRR_ZAPI5_ROUTE_BGP_DIRECTFRR_ZAPI5_ROUTE_BGP_DIRECT_EXTFRR_ZAPI5_ROUTE_BABELFRR_ZAPI5_ROUTE_SHARPFRR_ZAPI5_ROUTE_PBRFRR_ZAPI5_ROUTE_ALLFRR_ZAPI5_ROUTE_MAX"
+
+var _ROUTE_TYPE_index = [...]uint16{0, 22, 44, 67, 89, 108, 129, 149, 170, 190, 209, 228, 249, 269, 289, 309, 330, 349, 368, 394, 423, 449, 479, 500, 521, 540, 559, 578}
+
+func (i ROUTE_TYPE) String() string {
+	if i >= ROUTE_TYPE(len(_ROUTE_TYPE_index)-1) {
+		return "ROUTE_TYPE(" + strconv.FormatInt(int64(i), 10) + ")"
+	}
+	return _ROUTE_TYPE_name[_ROUTE_TYPE_index[i]:_ROUTE_TYPE_index[i+1]]
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/safi_string.go

@@ -0,0 +1,17 @@
+// Code generated by "stringer -type=SAFI"; DO NOT EDIT.
+
+package zebra
+
+import "strconv"
+
+const _SAFI_name = "SAFI_UNICASTSAFI_MULTICASTSAFI_RESERVED_3SAFI_MPLS_VPNSAFI_MAX"
+
+var _SAFI_index = [...]uint8{0, 12, 26, 41, 54, 62}
+
+func (i SAFI) String() string {
+	i -= 1
+	if i >= SAFI(len(_SAFI_index)-1) {
+		return "SAFI(" + strconv.FormatInt(int64(i+1), 10) + ")"
+	}
+	return _SAFI_name[_SAFI_index[i]:_SAFI_index[i+1]]
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/zapi_bsd.go

@@ -0,0 +1,58 @@
+// Copyright (C) 2014, 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build freebsd netbsd openbsd
+
+package zebra
+
+import (
+	"strings"
+	"syscall"
+)
+
+func intfflag2string(flag uint64) string {
+	ss := make([]string, 0, 10)
+	if flag&syscall.IFF_UP > 0 {
+		ss = append(ss, "UP")
+	}
+	if flag&syscall.IFF_BROADCAST > 0 {
+		ss = append(ss, "BROADCAST")
+	}
+	if flag&syscall.IFF_DEBUG > 0 {
+		ss = append(ss, "DEBUG")
+	}
+	if flag&syscall.IFF_LOOPBACK > 0 {
+		ss = append(ss, "LOOPBACK")
+	}
+	if flag&syscall.IFF_POINTOPOINT > 0 {
+		ss = append(ss, "POINTOPOINT")
+	}
+	if flag&syscall.IFF_RUNNING > 0 {
+		ss = append(ss, "RUNNING")
+	}
+	if flag&syscall.IFF_NOARP > 0 {
+		ss = append(ss, "NOARP")
+	}
+	if flag&syscall.IFF_PROMISC > 0 {
+		ss = append(ss, "PROMISC")
+	}
+	if flag&syscall.IFF_ALLMULTI > 0 {
+		ss = append(ss, "ALLMULTI")
+	}
+	if flag&syscall.IFF_MULTICAST > 0 {
+		ss = append(ss, "MULTICAST")
+	}
+	return strings.Join(ss, " | ")
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/zapi_darwin.go

@@ -0,0 +1,59 @@
+// Copyright (C) 2014, 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package zebra
+
+import (
+	"strings"
+	"syscall"
+)
+
+func intfflag2string(flag uint64) string {
+	ss := make([]string, 0, 10)
+	if flag&syscall.IFF_UP > 0 {
+		ss = append(ss, "UP")
+	}
+	if flag&syscall.IFF_BROADCAST > 0 {
+		ss = append(ss, "BROADCAST")
+	}
+	if flag&syscall.IFF_DEBUG > 0 {
+		ss = append(ss, "DEBUG")
+	}
+	if flag&syscall.IFF_LOOPBACK > 0 {
+		ss = append(ss, "LOOPBACK")
+	}
+	if flag&syscall.IFF_POINTOPOINT > 0 {
+		ss = append(ss, "POINTOPOINT")
+	}
+	if flag&syscall.IFF_NOTRAILERS > 0 {
+		ss = append(ss, "NOTRAILERS")
+	}
+	if flag&syscall.IFF_RUNNING > 0 {
+		ss = append(ss, "RUNNING")
+	}
+	if flag&syscall.IFF_NOARP > 0 {
+		ss = append(ss, "NOARP")
+	}
+	if flag&syscall.IFF_PROMISC > 0 {
+		ss = append(ss, "PROMISC")
+	}
+	if flag&syscall.IFF_ALLMULTI > 0 {
+		ss = append(ss, "ALLMULTI")
+	}
+	if flag&syscall.IFF_MULTICAST > 0 {
+		ss = append(ss, "MULTICAST")
+	}
+	return strings.Join(ss, " | ")
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/zapi_linux.go

@@ -0,0 +1,83 @@
+// Copyright (C) 2014, 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package zebra
+
+import (
+	"strings"
+	"syscall"
+)
+
+func intfflag2string(flag uint64) string {
+	ss := make([]string, 0, 10)
+	if flag&syscall.IFF_UP > 0 {
+		ss = append(ss, "UP")
+	}
+	if flag&syscall.IFF_BROADCAST > 0 {
+		ss = append(ss, "BROADCAST")
+	}
+	if flag&syscall.IFF_DEBUG > 0 {
+		ss = append(ss, "DEBUG")
+	}
+	if flag&syscall.IFF_LOOPBACK > 0 {
+		ss = append(ss, "LOOPBACK")
+	}
+	if flag&syscall.IFF_POINTOPOINT > 0 {
+		ss = append(ss, "POINTOPOINT")
+	}
+	if flag&syscall.IFF_NOTRAILERS > 0 {
+		ss = append(ss, "NOTRAILERS")
+	}
+	if flag&syscall.IFF_RUNNING > 0 {
+		ss = append(ss, "RUNNING")
+	}
+	if flag&syscall.IFF_NOARP > 0 {
+		ss = append(ss, "NOARP")
+	}
+	if flag&syscall.IFF_PROMISC > 0 {
+		ss = append(ss, "PROMISC")
+	}
+	if flag&syscall.IFF_ALLMULTI > 0 {
+		ss = append(ss, "ALLMULTI")
+	}
+	if flag&syscall.IFF_MASTER > 0 {
+		ss = append(ss, "MASTER")
+	}
+	if flag&syscall.IFF_SLAVE > 0 {
+		ss = append(ss, "SLAVE")
+	}
+	if flag&syscall.IFF_MULTICAST > 0 {
+		ss = append(ss, "MULTICAST")
+	}
+	if flag&syscall.IFF_PORTSEL > 0 {
+		ss = append(ss, "PORTSEL")
+	}
+	if flag&syscall.IFF_AUTOMEDIA > 0 {
+		ss = append(ss, "AUTOMEDIA")
+	}
+	if flag&syscall.IFF_DYNAMIC > 0 {
+		ss = append(ss, "DYNAMIC")
+	}
+	//	if flag&syscall.IFF_LOWER_UP > 0 {
+	//		ss = append(ss, "LOWER_UP")
+	//	}
+	//	if flag&syscall.IFF_DORMANT > 0 {
+	//		ss = append(ss, "DORMANT")
+	//	}
+	//	if flag&syscall.IFF_ECHO > 0 {
+	//		ss = append(ss, "ECHO")
+	//	}
+	return strings.Join(ss, " | ")
+}

vendor/github.com/osrg/gobgp/internal/pkg/zebra/zapi_windows.go

@@ -0,0 +1,38 @@
+// Copyright (C) 2014, 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package zebra
+
+import (
+	"strings"
+	"syscall"
+)
+
+func intfflag2string(flag uint64) string {
+	ss := make([]string, 0, 10)
+	if flag&syscall.IFF_UP > 0 {
+		ss = append(ss, "UP")
+	}
+	if flag&syscall.IFF_BROADCAST > 0 {
+		ss = append(ss, "BROADCAST")
+	}
+	if flag&syscall.IFF_LOOPBACK > 0 {
+		ss = append(ss, "LOOPBACK")
+	}
+	if flag&syscall.IFF_MULTICAST > 0 {
+		ss = append(ss, "MULTICAST")
+	}
+	return strings.Join(ss, " | ")
+}