func (t *Tap) Close() error {
if err := deleteTap(t.Name); err != nil {
return err
}
if t.LocalIP != nil {
ipallocator.ReleaseIP(t.bridge.ipNet, t.LocalIP)
}
if t.RemoteIP != nil {
ipallocator.ReleaseIP(t.bridge.ipNet, t.RemoteIP)
}
return nil
}
// release an interface for a select ip
func Release(job *engine.Job) engine.Status {
var (
id = job.Args[0]
containerInterface = currentInterfaces.Get(id)
)
if containerInterface == nil {
return job.Errorf("No network information to release for %s", id)
}
for _, nat := range containerInterface.PortMappings {
if err := portmapper.Unmap(nat); err != nil {
log.Printf("Unable to unmap port %s: %s", nat, err)
}
}
if err := ipallocator.ReleaseIP(bridgeNetwork, &containerInterface.IP); err != nil {
log.Printf("Unable to release ip %s\n", err)
}
return engine.StatusOK
}
// release an interface for a select ip
func Release(job *engine.Job) engine.Status {
var (
id = job.Args[0]
containerInterface = currentInterfaces.Get(id)
ip net.IP
port int
proto string
)
if containerInterface == nil {
return job.Errorf("No network information to release for %s", id)
}
for _, nat := range containerInterface.PortMappings {
if err := portmapper.Unmap(nat); err != nil {
log.Printf("Unable to unmap port %s: %s", nat, err)
}
// this is host mappings
switch a := nat.(type) {
case *net.TCPAddr:
proto = "tcp"
ip = a.IP
port = a.Port
case *net.UDPAddr:
proto = "udp"
ip = a.IP
port = a.Port
}
if err := portallocator.ReleasePort(ip, proto, port); err != nil {
log.Printf("Unable to release port %s", nat)
}
}
if err := ipallocator.ReleaseIP(bridgeNetwork, &containerInterface.IP); err != nil {
log.Printf("Unable to release ip %s\n", err)
}
return engine.StatusOK
}