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package server
import (
"fmt"
log "github.com/sirupsen/logrus"
"github.com/bio-routing/bio-rd/net"
"github.com/bio-routing/bio-rd/protocols/bgp/packet"
"github.com/bio-routing/bio-rd/route"
"github.com/bio-routing/bio-rd/routingtable"
)
type UpdateSenderAddPath struct {
routingtable.ClientManager
fsm *FSM
}
func newUpdateSenderAddPath(fsm *FSM) *UpdateSenderAddPath {
return &UpdateSenderAddPath{
fsm: fsm,
}
}
func (u *UpdateSenderAddPath) AddPath(pfx net.Prefix, p *route.Path) error {
fmt.Printf("SENDING AN BGP UPDATE WITH ADD PATH TO %s\n", u.fsm.remote.String())
asPathPA, err := packet.ParseASPathStr(fmt.Sprintf("%d %s", u.fsm.localASN, p.BGPPath.ASPath))
if err != nil {
return fmt.Errorf("Unable to parse AS path: %v", err)
}
update := &packet.BGPUpdateAddPath{
PathAttributes: &packet.PathAttribute{
TypeCode: packet.OriginAttr,
Value: p.BGPPath.Origin,
Next: &packet.PathAttribute{
TypeCode: packet.ASPathAttr,
Value: asPathPA.Value,
Next: &packet.PathAttribute{
TypeCode: packet.NextHopAttr,
Value: p.BGPPath.NextHop,
},
},
},
NLRI: &packet.NLRIAddPath{
PathIdentifier: p.BGPPath.PathIdentifier,
IP: pfx.Addr(),
Pfxlen: pfx.Pfxlen(),
},
}
updateBytes, err := update.SerializeUpdate()
if err != nil {
log.Errorf("Unable to serialize BGP Update: %v", err)
return nil
}
fmt.Printf("Sending Update: %v\n", updateBytes)
_, err = u.fsm.con.Write(updateBytes)
if err != nil {
return fmt.Errorf("Failed sending Update: %v", err)
}
return nil
}
func (u *UpdateSenderAddPath) RemovePath(pfx net.Prefix, p *route.Path) bool {
log.Warningf("BGP Update Sender: RemovePath not implemented")
return false
}
func (u *UpdateSenderAddPath) UpdateNewClient(client routingtable.RouteTableClient) error {
log.Warningf("BGP Update Sender: RemovePath not implemented")
return nil
}