// L3n4Addr2RevNatKeynValue converts the given L3n4Addr to a RevNatKey and RevNatValue.
func L3n4Addr2RevNatKeynValue(svcID types.ServiceID, feL3n4Addr types.L3n4Addr) (RevNatKey, RevNatValue) {
if feL3n4Addr.IsIPv6() {
return NewRevNat6Key(uint16(svcID)), NewRevNat6Value(feL3n4Addr.IP, feL3n4Addr.Port)
} else {
return NewRevNat4Key(uint16(svcID)), NewRevNat4Value(feL3n4Addr.IP, feL3n4Addr.Port)
}
}
// L3n4Addr2ServiceKey converts the given l3n4Addr to a ServiceKey with the slave ID
// set to 0.
func L3n4Addr2ServiceKey(l3n4Addr types.L3n4Addr) ServiceKey {
if l3n4Addr.IsIPv6() {
return NewService6Key(l3n4Addr.IP, l3n4Addr.Port, 0)
} else {
return NewService4Key(l3n4Addr.IP, l3n4Addr.Port, 0)
}
}
// SVCDelete deletes the frontend from the local bpf map.
func (d *Daemon) SVCDelete(feL3n4 types.L3n4Addr) error {
feL3n4Uniq, err := feL3n4.SHA256Sum()
if err != nil {
return err
}
var svcKey lbmap.ServiceKey
if !feL3n4.IsIPv6() {
svcKey = lbmap.NewService4Key(feL3n4.IP, feL3n4.Port, 0)
} else {
svcKey = lbmap.NewService6Key(feL3n4.IP, feL3n4.Port, 0)
}
svcKey.SetBackend(0)
d.loadBalancer.BPFMapMU.Lock()
defer d.loadBalancer.BPFMapMU.Unlock()
err = lbmap.DeleteService(svcKey)
// TODO should we delete even if err is != nil?
if err == nil {
delete(d.loadBalancer.SVCMap, feL3n4Uniq)
}
return err
}