func BridgeInit(bridgeMAC string, nmIgnoreFile string, log *logging.Logger) (*HostNetwork, error) {
if os.Getpid() == 1 {
panic(errors.New("Cannot use BridgeInit from child."))
}
htn := &HostNetwork{
BridgeMAC: bridgeMAC,
}
if nmIgnoreFile != "" {
if _, err := os.Stat(nmIgnoreFile); os.IsNotExist(err) {
log.Warning("Warning! Network Manager may not properly configured to ignore the bridge interface! This may result in management conflicts!")
}
}
br, err := tenus.BridgeFromName(ozDefaultInterfaceBridge)
if err != nil {
log.Info("Bridge not found, attempting to create a new one")
br, err = tenus.NewBridgeWithName(ozDefaultInterfaceBridge)
if err != nil {
return nil, fmt.Errorf("Unable to create bridge %+v", err)
}
}
htn.Interface = br
if err := htn.configureBridgeInterface(log); err != nil {
return nil, err
}
brL := br.NetInterface()
addrs, err := brL.Addrs()
if err != nil {
return nil, fmt.Errorf("Unable to get bridge interface addresses: %+v", err)
}
// Build the ip range which we will use for the network
if err := htn.buildBridgeNetwork(addrs); err != nil {
return nil, err
}
return htn, nil
}
func (htn *HostNetwork) BridgeReconfigure(log *logging.Logger) (*HostNetwork, error) {
if os.Getpid() == 1 {
panic(errors.New("Cannot use BridgeReconfigure from child."))
}
newhtn := &HostNetwork{
BridgeMAC: htn.BridgeMAC,
}
if err := htn.Interface.UnsetLinkIp(htn.Gateway, htn.GatewayNet); err != nil {
log.Warning("Unable to remove old IP address from bridge: %+v", err)
}
br, err := tenus.BridgeFromName(ozDefaultInterfaceBridge)
if err != nil {
return nil, err
}
newhtn.Interface = br
if err := newhtn.configureBridgeInterface(log); err != nil {
return nil, err
}
brL := newhtn.Interface.NetInterface()
addrs, err := brL.Addrs()
if err != nil {
return nil, fmt.Errorf("Unable to get bridge interface addresses: %+v", err)
}
// Build the ip range which we will use for the network
if err := newhtn.buildBridgeNetwork(addrs); err != nil {
return nil, err
}
return newhtn, nil
}