mirror of
https://github.com/osrg/gobgp.git
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82 lines
2.3 KiB
Go
82 lines
2.3 KiB
Go
// Copyright (C) 2014-2016 Nippon Telegraph and Telephone Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package table
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import (
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"fmt"
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"github.com/osrg/gobgp/packet/bgp"
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)
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type Vrf struct {
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Name string
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Id uint32
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Rd bgp.RouteDistinguisherInterface
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ImportRt []bgp.ExtendedCommunityInterface
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ExportRt []bgp.ExtendedCommunityInterface
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}
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func (v *Vrf) ToGlobalPath(path *Path) error {
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nlri := path.GetNlri()
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switch rf := path.GetRouteFamily(); rf {
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case bgp.RF_IPv4_UC:
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n := nlri.(*bgp.IPAddrPrefix)
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path.OriginInfo().nlri = bgp.NewLabeledVPNIPAddrPrefix(n.Length, n.Prefix.String(), *bgp.NewMPLSLabelStack(0), v.Rd)
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case bgp.RF_IPv6_UC:
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n := nlri.(*bgp.IPv6AddrPrefix)
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path.OriginInfo().nlri = bgp.NewLabeledVPNIPv6AddrPrefix(n.Length, n.Prefix.String(), *bgp.NewMPLSLabelStack(0), v.Rd)
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case bgp.RF_EVPN:
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n := nlri.(*bgp.EVPNNLRI)
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switch n.RouteType {
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case bgp.EVPN_ROUTE_TYPE_MAC_IP_ADVERTISEMENT:
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n.RouteTypeData.(*bgp.EVPNMacIPAdvertisementRoute).RD = v.Rd
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case bgp.EVPN_INCLUSIVE_MULTICAST_ETHERNET_TAG:
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n.RouteTypeData.(*bgp.EVPNMulticastEthernetTagRoute).RD = v.Rd
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}
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default:
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return fmt.Errorf("unsupported route family for vrf: %s", rf)
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}
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path.SetExtCommunities(v.ExportRt, false)
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return nil
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}
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func (v *Vrf) Clone() *Vrf {
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f := func(rt []bgp.ExtendedCommunityInterface) []bgp.ExtendedCommunityInterface {
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l := make([]bgp.ExtendedCommunityInterface, 0, len(rt))
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for _, v := range rt {
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l = append(l, v)
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}
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return l
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}
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return &Vrf{
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Name: v.Name,
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Id: v.Id,
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Rd: v.Rd,
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ImportRt: f(v.ImportRt),
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ExportRt: f(v.ExportRt),
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}
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}
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func isLastTargetUser(vrfs map[string]*Vrf, target bgp.ExtendedCommunityInterface) bool {
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for _, vrf := range vrfs {
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for _, rt := range vrf.ImportRt {
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if target.String() == rt.String() {
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return false
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}
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}
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}
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return true
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}
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