/
attribute.go
1304 lines (1252 loc) · 42.2 KB
/
attribute.go
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// 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.
//nolint:staticcheck
package apiutil
import (
"errors"
"fmt"
"net"
"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"
log "github.com/sirupsen/logrus"
)
func UnmarshalAttribute(an *any.Any) (bgp.PathAttributeInterface, error) {
var value ptypes.DynamicAny
if err := ptypes.UnmarshalAny(an, &value); err != nil {
return nil, fmt.Errorf("failed to unmarshal route distinguisher: %s", err)
}
switch a := value.Message.(type) {
case *api.OriginAttribute:
return bgp.NewPathAttributeOrigin(uint8(a.Origin)), nil
case *api.AsPathAttribute:
params := make([]bgp.AsPathParamInterface, 0, len(a.Segments))
for _, segment := range a.Segments {
params = append(params, bgp.NewAs4PathParam(uint8(segment.Type), segment.Numbers))
}
return bgp.NewPathAttributeAsPath(params), nil
case *api.NextHopAttribute:
nexthop := net.ParseIP(a.NextHop).To4()
if nexthop == nil {
return nil, fmt.Errorf("invalid nexthop address: %s", a.NextHop)
}
return bgp.NewPathAttributeNextHop(a.NextHop), nil
case *api.MultiExitDiscAttribute:
return bgp.NewPathAttributeMultiExitDisc(a.Med), nil
case *api.LocalPrefAttribute:
return bgp.NewPathAttributeLocalPref(a.LocalPref), nil
case *api.AtomicAggregateAttribute:
return bgp.NewPathAttributeAtomicAggregate(), nil
case *api.AggregatorAttribute:
if net.ParseIP(a.Address).To4() == nil {
return nil, fmt.Errorf("invalid aggregator address: %s", a.Address)
}
return bgp.NewPathAttributeAggregator(a.As, a.Address), nil
case *api.CommunitiesAttribute:
return bgp.NewPathAttributeCommunities(a.Communities), nil
case *api.OriginatorIdAttribute:
if net.ParseIP(a.Id).To4() == nil {
return nil, fmt.Errorf("invalid originator id: %s", a.Id)
}
return bgp.NewPathAttributeOriginatorId(a.Id), nil
case *api.ClusterListAttribute:
for _, id := range a.Ids {
if net.ParseIP(id).To4() == nil {
return nil, fmt.Errorf("invalid cluster list: %s", a.Ids)
}
}
return bgp.NewPathAttributeClusterList(a.Ids), nil
}
return nil, errors.New("unexpected object")
}
func NewOriginAttributeFromNative(a *bgp.PathAttributeOrigin) *api.OriginAttribute {
return &api.OriginAttribute{
Origin: uint32(a.Value),
}
}
func NewAsPathAttributeFromNative(a *bgp.PathAttributeAsPath) *api.AsPathAttribute {
segments := make([]*api.AsSegment, 0, len(a.Value))
for _, param := range a.Value {
segments = append(segments, &api.AsSegment{
Type: uint32(param.GetType()),
Numbers: param.GetAS(),
})
}
return &api.AsPathAttribute{
Segments: segments,
}
}
func NewNextHopAttributeFromNative(a *bgp.PathAttributeNextHop) *api.NextHopAttribute {
return &api.NextHopAttribute{
NextHop: a.Value.String(),
}
}
func NewMultiExitDiscAttributeFromNative(a *bgp.PathAttributeMultiExitDisc) *api.MultiExitDiscAttribute {
return &api.MultiExitDiscAttribute{
Med: a.Value,
}
}
func NewLocalPrefAttributeFromNative(a *bgp.PathAttributeLocalPref) *api.LocalPrefAttribute {
return &api.LocalPrefAttribute{
LocalPref: a.Value,
}
}
func NewAtomicAggregateAttributeFromNative(a *bgp.PathAttributeAtomicAggregate) *api.AtomicAggregateAttribute {
return &api.AtomicAggregateAttribute{}
}
func NewAggregatorAttributeFromNative(a *bgp.PathAttributeAggregator) *api.AggregatorAttribute {
return &api.AggregatorAttribute{
As: a.Value.AS,
Address: a.Value.Address.String(),
}
}
func NewCommunitiesAttributeFromNative(a *bgp.PathAttributeCommunities) *api.CommunitiesAttribute {
return &api.CommunitiesAttribute{
Communities: a.Value,
}
}
func NewOriginatorIdAttributeFromNative(a *bgp.PathAttributeOriginatorId) *api.OriginatorIdAttribute {
return &api.OriginatorIdAttribute{
Id: a.Value.String(),
}
}
func NewClusterListAttributeFromNative(a *bgp.PathAttributeClusterList) *api.ClusterListAttribute {
ids := make([]string, 0, len(a.Value))
for _, id := range a.Value {
ids = append(ids, id.String())
}
return &api.ClusterListAttribute{
Ids: ids,
}
}
func MarshalRD(rd bgp.RouteDistinguisherInterface) *any.Any {
var r proto.Message
switch v := rd.(type) {
case *bgp.RouteDistinguisherTwoOctetAS:
r = &api.RouteDistinguisherTwoOctetAS{
Admin: uint32(v.Admin),
Assigned: v.Assigned,
}
case *bgp.RouteDistinguisherIPAddressAS:
r = &api.RouteDistinguisherIPAddress{
Admin: v.Admin.String(),
Assigned: uint32(v.Assigned),
}
case *bgp.RouteDistinguisherFourOctetAS:
r = &api.RouteDistinguisherFourOctetAS{
Admin: v.Admin,
Assigned: uint32(v.Assigned),
}
default:
log.WithFields(log.Fields{
"Topic": "protobuf",
"RD": rd,
}).Warn("invalid rd type to marshal")
return nil
}
a, _ := ptypes.MarshalAny(r)
return a
}
func UnmarshalRD(a *any.Any) (bgp.RouteDistinguisherInterface, error) {
var value ptypes.DynamicAny
if err := ptypes.UnmarshalAny(a, &value); err != nil {
return nil, fmt.Errorf("failed to unmarshal route distinguisher: %s", err)
}
switch v := value.Message.(type) {
case *api.RouteDistinguisherTwoOctetAS:
return bgp.NewRouteDistinguisherTwoOctetAS(uint16(v.Admin), v.Assigned), nil
case *api.RouteDistinguisherIPAddress:
rd := bgp.NewRouteDistinguisherIPAddressAS(v.Admin, uint16(v.Assigned))
if rd == nil {
return nil, fmt.Errorf("invalid address for route distinguisher: %s", v.Admin)
}
return rd, nil
case *api.RouteDistinguisherFourOctetAS:
return bgp.NewRouteDistinguisherFourOctetAS(v.Admin, uint16(v.Assigned)), nil
}
return nil, fmt.Errorf("invalid route distinguisher type: %s", a.TypeUrl)
}
func NewEthernetSegmentIdentifierFromNative(a *bgp.EthernetSegmentIdentifier) *api.EthernetSegmentIdentifier {
return &api.EthernetSegmentIdentifier{
Type: uint32(a.Type),
Value: a.Value,
}
}
func unmarshalESI(a *api.EthernetSegmentIdentifier) (*bgp.EthernetSegmentIdentifier, error) {
return &bgp.EthernetSegmentIdentifier{
Type: bgp.ESIType(a.Type),
Value: a.Value,
}, nil
}
func MarshalFlowSpecRules(values []bgp.FlowSpecComponentInterface) []*any.Any {
rules := make([]*any.Any, 0, len(values))
for _, value := range values {
var rule proto.Message
switch v := value.(type) {
case *bgp.FlowSpecDestinationPrefix:
rule = &api.FlowSpecIPPrefix{
Type: uint32(bgp.FLOW_SPEC_TYPE_DST_PREFIX),
PrefixLen: uint32(v.Prefix.(*bgp.IPAddrPrefix).Length),
Prefix: v.Prefix.(*bgp.IPAddrPrefix).Prefix.String(),
}
case *bgp.FlowSpecSourcePrefix:
rule = &api.FlowSpecIPPrefix{
Type: uint32(bgp.FLOW_SPEC_TYPE_SRC_PREFIX),
PrefixLen: uint32(v.Prefix.(*bgp.IPAddrPrefix).Length),
Prefix: v.Prefix.(*bgp.IPAddrPrefix).Prefix.String(),
}
case *bgp.FlowSpecDestinationPrefix6:
rule = &api.FlowSpecIPPrefix{
Type: uint32(bgp.FLOW_SPEC_TYPE_DST_PREFIX),
PrefixLen: uint32(v.Prefix.(*bgp.IPv6AddrPrefix).Length),
Prefix: v.Prefix.(*bgp.IPv6AddrPrefix).Prefix.String(),
Offset: uint32(v.Offset),
}
case *bgp.FlowSpecSourcePrefix6:
rule = &api.FlowSpecIPPrefix{
Type: uint32(bgp.FLOW_SPEC_TYPE_SRC_PREFIX),
PrefixLen: uint32(v.Prefix.(*bgp.IPv6AddrPrefix).Length),
Prefix: v.Prefix.(*bgp.IPv6AddrPrefix).Prefix.String(),
Offset: uint32(v.Offset),
}
case *bgp.FlowSpecSourceMac:
rule = &api.FlowSpecMAC{
Type: uint32(bgp.FLOW_SPEC_TYPE_SRC_MAC),
Address: v.Mac.String(),
}
case *bgp.FlowSpecDestinationMac:
rule = &api.FlowSpecMAC{
Type: uint32(bgp.FLOW_SPEC_TYPE_DST_MAC),
Address: v.Mac.String(),
}
case *bgp.FlowSpecComponent:
items := make([]*api.FlowSpecComponentItem, 0, len(v.Items))
for _, i := range v.Items {
items = append(items, &api.FlowSpecComponentItem{
Op: uint32(i.Op),
Value: i.Value,
})
}
rule = &api.FlowSpecComponent{
Type: uint32(v.Type()),
Items: items,
}
}
a, _ := ptypes.MarshalAny(rule)
rules = append(rules, a)
}
return rules
}
func UnmarshalFlowSpecRules(values []*any.Any) ([]bgp.FlowSpecComponentInterface, error) {
rules := make([]bgp.FlowSpecComponentInterface, 0, len(values))
for _, an := range values {
var rule bgp.FlowSpecComponentInterface
var value ptypes.DynamicAny
if err := ptypes.UnmarshalAny(an, &value); err != nil {
return nil, fmt.Errorf("failed to unmarshal flow spec component: %s", err)
}
switch v := value.Message.(type) {
case *api.FlowSpecIPPrefix:
typ := bgp.BGPFlowSpecType(v.Type)
isIPv4 := net.ParseIP(v.Prefix).To4() != nil
switch {
case typ == bgp.FLOW_SPEC_TYPE_DST_PREFIX && isIPv4:
rule = bgp.NewFlowSpecDestinationPrefix(bgp.NewIPAddrPrefix(uint8(v.PrefixLen), v.Prefix))
case typ == bgp.FLOW_SPEC_TYPE_SRC_PREFIX && isIPv4:
rule = bgp.NewFlowSpecSourcePrefix(bgp.NewIPAddrPrefix(uint8(v.PrefixLen), v.Prefix))
case typ == bgp.FLOW_SPEC_TYPE_DST_PREFIX && !isIPv4:
rule = bgp.NewFlowSpecDestinationPrefix6(bgp.NewIPv6AddrPrefix(uint8(v.PrefixLen), v.Prefix), uint8(v.Offset))
case typ == bgp.FLOW_SPEC_TYPE_SRC_PREFIX && !isIPv4:
rule = bgp.NewFlowSpecSourcePrefix6(bgp.NewIPv6AddrPrefix(uint8(v.PrefixLen), v.Prefix), uint8(v.Offset))
}
case *api.FlowSpecMAC:
typ := bgp.BGPFlowSpecType(v.Type)
mac, err := net.ParseMAC(v.Address)
if err != nil {
return nil, fmt.Errorf("invalid mac address for %s flow spec component: %s", typ.String(), v.Address)
}
switch typ {
case bgp.FLOW_SPEC_TYPE_SRC_MAC:
rule = bgp.NewFlowSpecSourceMac(mac)
case bgp.FLOW_SPEC_TYPE_DST_MAC:
rule = bgp.NewFlowSpecDestinationMac(mac)
}
case *api.FlowSpecComponent:
items := make([]*bgp.FlowSpecComponentItem, 0, len(v.Items))
for _, item := range v.Items {
items = append(items, bgp.NewFlowSpecComponentItem(uint8(item.Op), item.Value))
}
rule = bgp.NewFlowSpecComponent(bgp.BGPFlowSpecType(v.Type), items)
}
if rule == nil {
return nil, fmt.Errorf("invalid flow spec component: %v", value.Message)
}
rules = append(rules, rule)
}
return rules, nil
}
func MarshalNLRI(value bgp.AddrPrefixInterface) *any.Any {
var nlri proto.Message
switch v := value.(type) {
case *bgp.IPAddrPrefix:
nlri = &api.IPAddressPrefix{
PrefixLen: uint32(v.Length),
Prefix: v.Prefix.String(),
}
case *bgp.IPv6AddrPrefix:
nlri = &api.IPAddressPrefix{
PrefixLen: uint32(v.Length),
Prefix: v.Prefix.String(),
}
case *bgp.LabeledIPAddrPrefix:
nlri = &api.LabeledIPAddressPrefix{
Labels: v.Labels.Labels,
PrefixLen: uint32(v.IPPrefixLen()),
Prefix: v.Prefix.String(),
}
case *bgp.LabeledIPv6AddrPrefix:
nlri = &api.LabeledIPAddressPrefix{
Labels: v.Labels.Labels,
PrefixLen: uint32(v.IPPrefixLen()),
Prefix: v.Prefix.String(),
}
case *bgp.EncapNLRI:
nlri = &api.EncapsulationNLRI{
Address: v.String(),
}
case *bgp.Encapv6NLRI:
nlri = &api.EncapsulationNLRI{
Address: v.String(),
}
case *bgp.EVPNNLRI:
switch r := v.RouteTypeData.(type) {
case *bgp.EVPNEthernetAutoDiscoveryRoute:
nlri = &api.EVPNEthernetAutoDiscoveryRoute{
Rd: MarshalRD(r.RD),
Esi: NewEthernetSegmentIdentifierFromNative(&r.ESI),
EthernetTag: r.ETag,
Label: r.Label,
}
case *bgp.EVPNMacIPAdvertisementRoute:
nlri = &api.EVPNMACIPAdvertisementRoute{
Rd: MarshalRD(r.RD),
Esi: NewEthernetSegmentIdentifierFromNative(&r.ESI),
EthernetTag: r.ETag,
MacAddress: r.MacAddress.String(),
IpAddress: r.IPAddress.String(),
Labels: r.Labels,
}
case *bgp.EVPNMulticastEthernetTagRoute:
nlri = &api.EVPNInclusiveMulticastEthernetTagRoute{
Rd: MarshalRD(r.RD),
EthernetTag: r.ETag,
IpAddress: r.IPAddress.String(),
}
case *bgp.EVPNEthernetSegmentRoute:
nlri = &api.EVPNEthernetSegmentRoute{
Rd: MarshalRD(r.RD),
Esi: NewEthernetSegmentIdentifierFromNative(&r.ESI),
IpAddress: r.IPAddress.String(),
}
case *bgp.EVPNIPPrefixRoute:
nlri = &api.EVPNIPPrefixRoute{
Rd: MarshalRD(r.RD),
Esi: NewEthernetSegmentIdentifierFromNative(&r.ESI),
EthernetTag: r.ETag,
IpPrefix: r.IPPrefix.String(),
IpPrefixLen: uint32(r.IPPrefixLength),
Label: r.Label,
GwAddress: r.GWIPAddress.String(),
}
}
case *bgp.LabeledVPNIPAddrPrefix:
nlri = &api.LabeledVPNIPAddressPrefix{
Labels: v.Labels.Labels,
Rd: MarshalRD(v.RD),
PrefixLen: uint32(v.IPPrefixLen()),
Prefix: v.Prefix.String(),
}
case *bgp.LabeledVPNIPv6AddrPrefix:
nlri = &api.LabeledVPNIPAddressPrefix{
Labels: v.Labels.Labels,
Rd: MarshalRD(v.RD),
PrefixLen: uint32(v.IPPrefixLen()),
Prefix: v.Prefix.String(),
}
case *bgp.RouteTargetMembershipNLRI:
nlri = &api.RouteTargetMembershipNLRI{
As: v.AS,
Rt: MarshalRT(v.RouteTarget),
}
case *bgp.FlowSpecIPv4Unicast:
nlri = &api.FlowSpecNLRI{
Rules: MarshalFlowSpecRules(v.Value),
}
case *bgp.FlowSpecIPv6Unicast:
nlri = &api.FlowSpecNLRI{
Rules: MarshalFlowSpecRules(v.Value),
}
case *bgp.FlowSpecIPv4VPN:
nlri = &api.VPNFlowSpecNLRI{
Rd: MarshalRD(v.RD()),
Rules: MarshalFlowSpecRules(v.Value),
}
case *bgp.FlowSpecIPv6VPN:
nlri = &api.VPNFlowSpecNLRI{
Rd: MarshalRD(v.RD()),
Rules: MarshalFlowSpecRules(v.Value),
}
case *bgp.FlowSpecL2VPN:
nlri = &api.VPNFlowSpecNLRI{
Rd: MarshalRD(v.RD()),
Rules: MarshalFlowSpecRules(v.Value),
}
}
an, _ := ptypes.MarshalAny(nlri)
return an
}
func MarshalNLRIs(values []bgp.AddrPrefixInterface) []*any.Any {
nlris := make([]*any.Any, 0, len(values))
for _, value := range values {
nlris = append(nlris, MarshalNLRI(value))
}
return nlris
}
func UnmarshalNLRI(rf bgp.RouteFamily, an *any.Any) (bgp.AddrPrefixInterface, error) {
var nlri bgp.AddrPrefixInterface
var value ptypes.DynamicAny
if err := ptypes.UnmarshalAny(an, &value); err != nil {
return nil, fmt.Errorf("failed to unmarshal nlri: %s", err)
}
switch v := value.Message.(type) {
case *api.IPAddressPrefix:
switch rf {
case bgp.RF_IPv4_UC:
nlri = bgp.NewIPAddrPrefix(uint8(v.PrefixLen), v.Prefix)
case bgp.RF_IPv6_UC:
nlri = bgp.NewIPv6AddrPrefix(uint8(v.PrefixLen), v.Prefix)
}
case *api.LabeledIPAddressPrefix:
switch rf {
case bgp.RF_IPv4_MPLS:
nlri = bgp.NewLabeledIPAddrPrefix(uint8(v.PrefixLen), v.Prefix, *bgp.NewMPLSLabelStack(v.Labels...))
case bgp.RF_IPv6_MPLS:
nlri = bgp.NewLabeledIPv6AddrPrefix(uint8(v.PrefixLen), v.Prefix, *bgp.NewMPLSLabelStack(v.Labels...))
}
case *api.EncapsulationNLRI:
switch rf {
case bgp.RF_IPv4_ENCAP:
nlri = bgp.NewEncapNLRI(v.Address)
case bgp.RF_IPv6_ENCAP:
nlri = bgp.NewEncapv6NLRI(v.Address)
}
case *api.EVPNEthernetAutoDiscoveryRoute:
if rf == bgp.RF_EVPN {
rd, err := UnmarshalRD(v.Rd)
if err != nil {
return nil, err
}
esi, err := unmarshalESI(v.Esi)
if err != nil {
return nil, err
}
nlri = bgp.NewEVPNEthernetAutoDiscoveryRoute(rd, *esi, v.EthernetTag, v.Label)
}
case *api.EVPNMACIPAdvertisementRoute:
if rf == bgp.RF_EVPN {
rd, err := UnmarshalRD(v.Rd)
if err != nil {
return nil, err
}
esi, err := unmarshalESI(v.Esi)
if err != nil {
return nil, err
}
nlri = bgp.NewEVPNMacIPAdvertisementRoute(rd, *esi, v.EthernetTag, v.MacAddress, v.IpAddress, v.Labels)
}
case *api.EVPNInclusiveMulticastEthernetTagRoute:
if rf == bgp.RF_EVPN {
rd, err := UnmarshalRD(v.Rd)
if err != nil {
return nil, err
}
nlri = bgp.NewEVPNMulticastEthernetTagRoute(rd, v.EthernetTag, v.IpAddress)
}
case *api.EVPNEthernetSegmentRoute:
if rf == bgp.RF_EVPN {
rd, err := UnmarshalRD(v.Rd)
if err != nil {
return nil, err
}
esi, err := unmarshalESI(v.Esi)
if err != nil {
return nil, err
}
nlri = bgp.NewEVPNEthernetSegmentRoute(rd, *esi, v.IpAddress)
}
case *api.EVPNIPPrefixRoute:
if rf == bgp.RF_EVPN {
rd, err := UnmarshalRD(v.Rd)
if err != nil {
return nil, err
}
esi, err := unmarshalESI(v.Esi)
if err != nil {
return nil, err
}
nlri = bgp.NewEVPNIPPrefixRoute(rd, *esi, v.EthernetTag, uint8(v.IpPrefixLen), v.IpPrefix, v.GwAddress, v.Label)
}
case *api.LabeledVPNIPAddressPrefix:
rd, err := UnmarshalRD(v.Rd)
if err != nil {
return nil, err
}
switch rf {
case bgp.RF_IPv4_VPN:
nlri = bgp.NewLabeledVPNIPAddrPrefix(uint8(v.PrefixLen), v.Prefix, *bgp.NewMPLSLabelStack(v.Labels...), rd)
case bgp.RF_IPv6_VPN:
nlri = bgp.NewLabeledVPNIPv6AddrPrefix(uint8(v.PrefixLen), v.Prefix, *bgp.NewMPLSLabelStack(v.Labels...), rd)
}
case *api.RouteTargetMembershipNLRI:
rt, err := UnmarshalRT(v.Rt)
if err != nil {
return nil, err
}
nlri = bgp.NewRouteTargetMembershipNLRI(v.As, rt)
case *api.FlowSpecNLRI:
rules, err := UnmarshalFlowSpecRules(v.Rules)
if err != nil {
return nil, err
}
switch rf {
case bgp.RF_FS_IPv4_UC:
nlri = bgp.NewFlowSpecIPv4Unicast(rules)
case bgp.RF_FS_IPv6_UC:
nlri = bgp.NewFlowSpecIPv6Unicast(rules)
}
case *api.VPNFlowSpecNLRI:
rd, err := UnmarshalRD(v.Rd)
if err != nil {
return nil, err
}
rules, err := UnmarshalFlowSpecRules(v.Rules)
if err != nil {
return nil, err
}
switch rf {
case bgp.RF_FS_IPv4_VPN:
nlri = bgp.NewFlowSpecIPv4VPN(rd, rules)
case bgp.RF_FS_IPv6_VPN:
nlri = bgp.NewFlowSpecIPv6VPN(rd, rules)
case bgp.RF_FS_L2_VPN:
nlri = bgp.NewFlowSpecL2VPN(rd, rules)
}
}
if nlri == nil {
return nil, fmt.Errorf("invalid nlri for %s family: %s", rf.String(), value.Message)
}
return nlri, nil
}
func UnmarshalNLRIs(rf bgp.RouteFamily, values []*any.Any) ([]bgp.AddrPrefixInterface, error) {
nlris := make([]bgp.AddrPrefixInterface, 0, len(values))
for _, an := range values {
nlri, err := UnmarshalNLRI(rf, an)
if err != nil {
return nil, err
}
nlris = append(nlris, nlri)
}
return nlris, nil
}
func NewMpReachNLRIAttributeFromNative(a *bgp.PathAttributeMpReachNLRI) *api.MpReachNLRIAttribute {
var nexthops []string
if a.SAFI == bgp.SAFI_FLOW_SPEC_UNICAST || a.SAFI == bgp.SAFI_FLOW_SPEC_VPN {
nexthops = nil
} else {
nexthops = []string{a.Nexthop.String()}
if a.LinkLocalNexthop != nil {
nexthops = append(nexthops, a.LinkLocalNexthop.String())
}
}
return &api.MpReachNLRIAttribute{
Family: ToApiFamily(a.AFI, a.SAFI),
NextHops: nexthops,
Nlris: MarshalNLRIs(a.Value),
}
}
func NewMpUnreachNLRIAttributeFromNative(a *bgp.PathAttributeMpUnreachNLRI) *api.MpUnreachNLRIAttribute {
return &api.MpUnreachNLRIAttribute{
Family: ToApiFamily(a.AFI, a.SAFI),
Nlris: MarshalNLRIs(a.Value),
}
}
func MarshalRT(rt bgp.ExtendedCommunityInterface) *any.Any {
var r proto.Message
switch v := rt.(type) {
case *bgp.TwoOctetAsSpecificExtended:
r = &api.TwoOctetAsSpecificExtended{
IsTransitive: true,
SubType: uint32(bgp.EC_SUBTYPE_ROUTE_TARGET),
As: uint32(v.AS),
LocalAdmin: uint32(v.LocalAdmin),
}
case *bgp.IPv4AddressSpecificExtended:
r = &api.IPv4AddressSpecificExtended{
IsTransitive: true,
SubType: uint32(bgp.EC_SUBTYPE_ROUTE_TARGET),
Address: v.IPv4.String(),
LocalAdmin: uint32(v.LocalAdmin),
}
case *bgp.FourOctetAsSpecificExtended:
r = &api.FourOctetAsSpecificExtended{
IsTransitive: true,
SubType: uint32(bgp.EC_SUBTYPE_ROUTE_TARGET),
As: uint32(v.AS),
LocalAdmin: uint32(v.LocalAdmin),
}
default:
log.WithFields(log.Fields{
"Topic": "protobuf",
"RT": rt,
}).Warn("invalid rt type to marshal")
return nil
}
a, _ := ptypes.MarshalAny(r)
return a
}
func MarshalRTs(values []bgp.ExtendedCommunityInterface) []*any.Any {
rts := make([]*any.Any, 0, len(values))
for _, rt := range values {
rts = append(rts, MarshalRT(rt))
}
return rts
}
func UnmarshalRT(a *any.Any) (bgp.ExtendedCommunityInterface, error) {
var value ptypes.DynamicAny
if err := ptypes.UnmarshalAny(a, &value); err != nil {
return nil, fmt.Errorf("failed to unmarshal route target: %s", err)
}
switch v := value.Message.(type) {
case *api.TwoOctetAsSpecificExtended:
return bgp.NewTwoOctetAsSpecificExtended(bgp.ExtendedCommunityAttrSubType(v.SubType), uint16(v.As), v.LocalAdmin, v.IsTransitive), nil
case *api.IPv4AddressSpecificExtended:
rt := bgp.NewIPv4AddressSpecificExtended(bgp.ExtendedCommunityAttrSubType(v.SubType), v.Address, uint16(v.LocalAdmin), v.IsTransitive)
if rt == nil {
return nil, fmt.Errorf("invalid address for ipv4 address specific route target: %s", v.Address)
}
return rt, nil
case *api.FourOctetAsSpecificExtended:
return bgp.NewFourOctetAsSpecificExtended(bgp.ExtendedCommunityAttrSubType(v.SubType), v.As, uint16(v.LocalAdmin), v.IsTransitive), nil
}
return nil, fmt.Errorf("invalid route target type: %s", a.TypeUrl)
}
func UnmarshalRTs(values []*any.Any) ([]bgp.ExtendedCommunityInterface, error) {
rts := make([]bgp.ExtendedCommunityInterface, 0, len(values))
for _, an := range values {
rt, err := UnmarshalRT(an)
if err != nil {
return nil, err
}
rts = append(rts, rt)
}
return rts, nil
}
func NewExtendedCommunitiesAttributeFromNative(a *bgp.PathAttributeExtendedCommunities) *api.ExtendedCommunitiesAttribute {
communities := make([]*any.Any, 0, len(a.Value))
for _, value := range a.Value {
var community proto.Message
switch v := value.(type) {
case *bgp.TwoOctetAsSpecificExtended:
community = &api.TwoOctetAsSpecificExtended{
IsTransitive: v.IsTransitive,
SubType: uint32(v.SubType),
As: uint32(v.AS),
LocalAdmin: uint32(v.LocalAdmin),
}
case *bgp.IPv4AddressSpecificExtended:
community = &api.IPv4AddressSpecificExtended{
IsTransitive: v.IsTransitive,
SubType: uint32(v.SubType),
Address: v.IPv4.String(),
LocalAdmin: uint32(v.LocalAdmin),
}
case *bgp.FourOctetAsSpecificExtended:
community = &api.FourOctetAsSpecificExtended{
IsTransitive: v.IsTransitive,
SubType: uint32(v.SubType),
As: uint32(v.AS),
LocalAdmin: uint32(v.LocalAdmin),
}
case *bgp.ValidationExtended:
community = &api.ValidationExtended{
State: uint32(v.State),
}
case *bgp.ColorExtended:
community = &api.ColorExtended{
Color: v.Color,
}
case *bgp.EncapExtended:
community = &api.EncapExtended{
TunnelType: uint32(v.TunnelType),
}
case *bgp.DefaultGatewayExtended:
community = &api.DefaultGatewayExtended{}
case *bgp.OpaqueExtended:
community = &api.OpaqueExtended{
IsTransitive: v.IsTransitive,
Value: v.Value,
}
case *bgp.ESILabelExtended:
community = &api.ESILabelExtended{
IsSingleActive: v.IsSingleActive,
Label: v.Label,
}
case *bgp.ESImportRouteTarget:
community = &api.ESImportRouteTarget{
EsImport: v.ESImport.String(),
}
case *bgp.MacMobilityExtended:
community = &api.MacMobilityExtended{
IsSticky: v.IsSticky,
SequenceNum: v.Sequence,
}
case *bgp.RouterMacExtended:
community = &api.RouterMacExtended{
Mac: v.Mac.String(),
}
case *bgp.TrafficRateExtended:
community = &api.TrafficRateExtended{
As: uint32(v.AS),
Rate: v.Rate,
}
case *bgp.TrafficActionExtended:
community = &api.TrafficActionExtended{
Terminal: v.Terminal,
Sample: v.Sample,
}
case *bgp.RedirectTwoOctetAsSpecificExtended:
community = &api.RedirectTwoOctetAsSpecificExtended{
As: uint32(v.AS),
LocalAdmin: v.LocalAdmin,
}
case *bgp.RedirectIPv4AddressSpecificExtended:
community = &api.RedirectIPv4AddressSpecificExtended{
Address: v.IPv4.String(),
LocalAdmin: uint32(v.LocalAdmin),
}
case *bgp.RedirectFourOctetAsSpecificExtended:
community = &api.RedirectFourOctetAsSpecificExtended{
As: v.AS,
LocalAdmin: uint32(v.LocalAdmin),
}
case *bgp.TrafficRemarkExtended:
community = &api.TrafficRemarkExtended{
Dscp: uint32(v.DSCP),
}
case *bgp.UnknownExtended:
community = &api.UnknownExtended{
Type: uint32(v.Type),
Value: v.Value,
}
default:
log.WithFields(log.Fields{
"Topic": "protobuf",
"Community": value,
}).Warn("unsupported extended community")
return nil
}
an, _ := ptypes.MarshalAny(community)
communities = append(communities, an)
}
return &api.ExtendedCommunitiesAttribute{
Communities: communities,
}
}
func unmarshalExComm(a *api.ExtendedCommunitiesAttribute) (*bgp.PathAttributeExtendedCommunities, error) {
communities := make([]bgp.ExtendedCommunityInterface, 0, len(a.Communities))
for _, an := range a.Communities {
var community bgp.ExtendedCommunityInterface
var value ptypes.DynamicAny
if err := ptypes.UnmarshalAny(an, &value); err != nil {
return nil, fmt.Errorf("failed to unmarshal extended community: %s", err)
}
switch v := value.Message.(type) {
case *api.TwoOctetAsSpecificExtended:
community = bgp.NewTwoOctetAsSpecificExtended(bgp.ExtendedCommunityAttrSubType(v.SubType), uint16(v.As), v.LocalAdmin, v.IsTransitive)
case *api.IPv4AddressSpecificExtended:
community = bgp.NewIPv4AddressSpecificExtended(bgp.ExtendedCommunityAttrSubType(v.SubType), v.Address, uint16(v.LocalAdmin), v.IsTransitive)
case *api.FourOctetAsSpecificExtended:
community = bgp.NewFourOctetAsSpecificExtended(bgp.ExtendedCommunityAttrSubType(v.SubType), v.As, uint16(v.LocalAdmin), v.IsTransitive)
case *api.ValidationExtended:
community = bgp.NewValidationExtended(bgp.ValidationState(v.State))
case *api.ColorExtended:
community = bgp.NewColorExtended(v.Color)
case *api.EncapExtended:
community = bgp.NewEncapExtended(bgp.TunnelType(v.TunnelType))
case *api.DefaultGatewayExtended:
community = bgp.NewDefaultGatewayExtended()
case *api.OpaqueExtended:
community = bgp.NewOpaqueExtended(v.IsTransitive, v.Value)
case *api.ESILabelExtended:
community = bgp.NewESILabelExtended(v.Label, v.IsSingleActive)
case *api.ESImportRouteTarget:
community = bgp.NewESImportRouteTarget(v.EsImport)
case *api.MacMobilityExtended:
community = bgp.NewMacMobilityExtended(v.SequenceNum, v.IsSticky)
case *api.RouterMacExtended:
community = bgp.NewRoutersMacExtended(v.Mac)
case *api.TrafficRateExtended:
community = bgp.NewTrafficRateExtended(uint16(v.As), v.Rate)
case *api.TrafficActionExtended:
community = bgp.NewTrafficActionExtended(v.Terminal, v.Sample)
case *api.RedirectTwoOctetAsSpecificExtended:
community = bgp.NewRedirectTwoOctetAsSpecificExtended(uint16(v.As), v.LocalAdmin)
case *api.RedirectIPv4AddressSpecificExtended:
community = bgp.NewRedirectIPv4AddressSpecificExtended(v.Address, uint16(v.LocalAdmin))
case *api.RedirectFourOctetAsSpecificExtended:
community = bgp.NewRedirectFourOctetAsSpecificExtended(v.As, uint16(v.LocalAdmin))
case *api.TrafficRemarkExtended:
community = bgp.NewTrafficRemarkExtended(uint8(v.Dscp))
case *api.UnknownExtended:
community = bgp.NewUnknownExtended(bgp.ExtendedCommunityAttrType(v.Type), v.Value)
}
if community == nil {
return nil, fmt.Errorf("invalid extended community: %v", value.Message)
}
communities = append(communities, community)
}
return bgp.NewPathAttributeExtendedCommunities(communities), nil
}
func NewAs4PathAttributeFromNative(a *bgp.PathAttributeAs4Path) *api.As4PathAttribute {
segments := make([]*api.AsSegment, 0, len(a.Value))
for _, param := range a.Value {
segments = append(segments, &api.AsSegment{
Type: uint32(param.Type),
Numbers: param.AS,
})
}
return &api.As4PathAttribute{
Segments: segments,
}
}
func NewAs4AggregatorAttributeFromNative(a *bgp.PathAttributeAs4Aggregator) *api.As4AggregatorAttribute {
return &api.As4AggregatorAttribute{
As: a.Value.AS,
Address: a.Value.Address.String(),
}
}
func NewPmsiTunnelAttributeFromNative(a *bgp.PathAttributePmsiTunnel) *api.PmsiTunnelAttribute {
var flags uint32
if a.IsLeafInfoRequired {
flags |= 0x01
}
id, _ := a.TunnelID.Serialize()
return &api.PmsiTunnelAttribute{
Flags: flags,
Type: uint32(a.TunnelType),
Label: a.Label,
Id: id,
}
}
func NewTunnelEncapAttributeFromNative(a *bgp.PathAttributeTunnelEncap) *api.TunnelEncapAttribute {
tlvs := make([]*api.TunnelEncapTLV, 0, len(a.Value))
for _, v := range a.Value {
subTlvs := make([]*any.Any, 0, len(v.Value))
for _, s := range v.Value {
var subTlv proto.Message
switch sv := s.(type) {
case *bgp.TunnelEncapSubTLVEncapsulation:
subTlv = &api.TunnelEncapSubTLVEncapsulation{
Key: sv.Key,
Cookie: sv.Cookie,
}
case *bgp.TunnelEncapSubTLVProtocol:
subTlv = &api.TunnelEncapSubTLVProtocol{
Protocol: uint32(sv.Protocol),
}
case *bgp.TunnelEncapSubTLVColor:
subTlv = &api.TunnelEncapSubTLVColor{
Color: sv.Color,
}
case *bgp.TunnelEncapSubTLVUnknown:
subTlv = &api.TunnelEncapSubTLVUnknown{
Type: uint32(sv.Type),
Value: sv.Value,
}
}
an, _ := ptypes.MarshalAny(subTlv)
subTlvs = append(subTlvs, an)
}
tlvs = append(tlvs, &api.TunnelEncapTLV{
Type: uint32(v.Type),
Tlvs: subTlvs,
})
}
return &api.TunnelEncapAttribute{
Tlvs: tlvs,
}
}
func NewIP6ExtendedCommunitiesAttributeFromNative(a *bgp.PathAttributeIP6ExtendedCommunities) *api.IP6ExtendedCommunitiesAttribute {
communities := make([]*any.Any, 0, len(a.Value))
for _, value := range a.Value {
var community proto.Message
switch v := value.(type) {
case *bgp.IPv6AddressSpecificExtended:
community = &api.IPv6AddressSpecificExtended{
IsTransitive: v.IsTransitive,
SubType: uint32(v.SubType),
Address: v.IPv6.String(),
LocalAdmin: uint32(v.LocalAdmin),
}
case *bgp.RedirectIPv6AddressSpecificExtended:
community = &api.RedirectIPv6AddressSpecificExtended{
Address: v.IPv6.String(),
LocalAdmin: uint32(v.LocalAdmin),
}
default:
log.WithFields(log.Fields{
"Topic": "protobuf",
"Attribute": value,
}).Warn("invalid ipv6 extended community")
return nil
}
an, _ := ptypes.MarshalAny(community)
communities = append(communities, an)
}
return &api.IP6ExtendedCommunitiesAttribute{
Communities: communities,
}
}
func NewAigpAttributeFromNative(a *bgp.PathAttributeAigp) *api.AigpAttribute {
tlvs := make([]*any.Any, 0, len(a.Values))
for _, value := range a.Values {
var tlv proto.Message
switch v := value.(type) {
case *bgp.AigpTLVIgpMetric:
tlv = &api.AigpTLVIGPMetric{
Metric: v.Metric,
}
case *bgp.AigpTLVDefault:
tlv = &api.AigpTLVUnknown{
Type: uint32(v.Type()),
Value: v.Value,
}
}
an, _ := ptypes.MarshalAny(tlv)
tlvs = append(tlvs, an)
}
return &api.AigpAttribute{
Tlvs: tlvs,
}
}