|
| 1 | +package daemon |
| 2 | + |
| 3 | +import ( |
| 4 | + "sync" |
| 5 | + |
| 6 | + "github.com/kubeovn/gonetworkmanager/v2" |
| 7 | + "github.com/scylladb/go-set/strset" |
| 8 | + "k8s.io/client-go/util/workqueue" |
| 9 | + "k8s.io/klog/v2" |
| 10 | +) |
| 11 | + |
| 12 | +type networkManagerSyncer struct { |
| 13 | + manager gonetworkmanager.NetworkManager |
| 14 | + workqueue workqueue.Interface |
| 15 | + devicePaths *strset.Set |
| 16 | + pathMap map[string]string |
| 17 | + bridgeMap map[string]string |
| 18 | + lock sync.Mutex |
| 19 | +} |
| 20 | + |
| 21 | +func newNetworkManagerSyncer() *networkManagerSyncer { |
| 22 | + syncer := &networkManagerSyncer{} |
| 23 | + |
| 24 | + manager, err := gonetworkmanager.NewNetworkManager() |
| 25 | + if err != nil { |
| 26 | + klog.V(3).Infof("failed to connect to NetworkManager: %v", err) |
| 27 | + return syncer |
| 28 | + } |
| 29 | + |
| 30 | + running, err := manager.Running() |
| 31 | + if err != nil { |
| 32 | + klog.V(3).Infof("failed to check NetworkManager running state: %v", err) |
| 33 | + return syncer |
| 34 | + } |
| 35 | + if !running { |
| 36 | + klog.V(3).Info("NetworkManager is not running, ignore") |
| 37 | + return syncer |
| 38 | + } |
| 39 | + |
| 40 | + syncer.manager = manager |
| 41 | + syncer.workqueue = workqueue.NewNamed("NetworkManagerSyncer") |
| 42 | + syncer.devicePaths = strset.New() |
| 43 | + syncer.pathMap = make(map[string]string) |
| 44 | + syncer.bridgeMap = make(map[string]string) |
| 45 | + return syncer |
| 46 | +} |
| 47 | + |
| 48 | +func (n *networkManagerSyncer) Run(handler func(nic, bridge string, delNonExistent bool) (int, error)) { |
| 49 | + if n.manager == nil { |
| 50 | + return |
| 51 | + } |
| 52 | + |
| 53 | + go func() { |
| 54 | + for n.ProcessNextItem(handler) { |
| 55 | + } |
| 56 | + }() |
| 57 | + |
| 58 | + go func() { |
| 59 | + ch := n.manager.Subscribe() |
| 60 | + defer n.manager.Unsubscribe() |
| 61 | + |
| 62 | + stateChange := gonetworkmanager.DeviceInterface + "." + gonetworkmanager.ActiveConnectionSignalStateChanged |
| 63 | + for { |
| 64 | + event := <-ch |
| 65 | + |
| 66 | + n.lock.Lock() |
| 67 | + if len(event.Body) == 0 || event.Name != stateChange || !n.devicePaths.Has(string(event.Path)) { |
| 68 | + n.lock.Unlock() |
| 69 | + continue |
| 70 | + } |
| 71 | + n.lock.Unlock() |
| 72 | + |
| 73 | + state, ok := event.Body[0].(uint32) |
| 74 | + if !ok { |
| 75 | + klog.Warningf("failed to convert %#v to uint32", event.Body[0]) |
| 76 | + continue |
| 77 | + } |
| 78 | + if gonetworkmanager.NmDeviceState(state) != gonetworkmanager.NmDeviceStateActivated { |
| 79 | + continue |
| 80 | + } |
| 81 | + |
| 82 | + klog.Infof("adding dbus object path %s to workqueue", event.Path) |
| 83 | + n.workqueue.Add(string(event.Path)) |
| 84 | + } |
| 85 | + }() |
| 86 | +} |
| 87 | + |
| 88 | +func (n *networkManagerSyncer) ProcessNextItem(handler func(nic, bridge string, delNonExistent bool) (int, error)) bool { |
| 89 | + item, shutdown := n.workqueue.Get() |
| 90 | + if shutdown { |
| 91 | + return false |
| 92 | + } |
| 93 | + defer n.workqueue.Done(item) |
| 94 | + |
| 95 | + klog.Infof("process dbus object path %v", item) |
| 96 | + path := item.(string) |
| 97 | + n.lock.Lock() |
| 98 | + if !n.devicePaths.Has(path) { |
| 99 | + n.lock.Unlock() |
| 100 | + return true |
| 101 | + } |
| 102 | + var nic string |
| 103 | + for k, v := range n.pathMap { |
| 104 | + if v == path { |
| 105 | + nic = k |
| 106 | + break |
| 107 | + } |
| 108 | + } |
| 109 | + n.lock.Unlock() |
| 110 | + |
| 111 | + bridge := n.bridgeMap[nic] |
| 112 | + if _, err := handler(nic, bridge, true); err != nil { |
| 113 | + klog.Errorf("failed to handle NetworkManager event for device %s with bridge %s: %v", nic, bridge, err) |
| 114 | + } |
| 115 | + |
| 116 | + return true |
| 117 | +} |
| 118 | + |
| 119 | +func (n *networkManagerSyncer) AddDevice(nicName, bridge string) error { |
| 120 | + if n.manager == nil { |
| 121 | + return nil |
| 122 | + } |
| 123 | + |
| 124 | + n.lock.Lock() |
| 125 | + defer n.lock.Unlock() |
| 126 | + |
| 127 | + if _, ok := n.pathMap[nicName]; ok { |
| 128 | + return nil |
| 129 | + } |
| 130 | + |
| 131 | + device, err := n.manager.GetDeviceByIpIface(nicName) |
| 132 | + if err != nil { |
| 133 | + klog.Errorf("failed to get device by IP iface %q: %v", nicName, err) |
| 134 | + return err |
| 135 | + } |
| 136 | + |
| 137 | + path := string(device.GetPath()) |
| 138 | + klog.V(3).Infof("adding device %s with dbus object path %s and bridge %s", nicName, path, bridge) |
| 139 | + n.devicePaths.Add(path) |
| 140 | + n.pathMap[nicName] = path |
| 141 | + n.bridgeMap[nicName] = bridge |
| 142 | + |
| 143 | + return nil |
| 144 | +} |
| 145 | + |
| 146 | +func (n *networkManagerSyncer) RemoveDevice(nicName string) error { |
| 147 | + if n.manager == nil { |
| 148 | + return nil |
| 149 | + } |
| 150 | + |
| 151 | + n.lock.Lock() |
| 152 | + n.devicePaths.Remove(n.pathMap[nicName]) |
| 153 | + delete(n.pathMap, nicName) |
| 154 | + delete(n.bridgeMap, nicName) |
| 155 | + n.lock.Unlock() |
| 156 | + |
| 157 | + return nil |
| 158 | +} |
| 159 | + |
| 160 | +func (n *networkManagerSyncer) SetManaged(name string, managed bool) error { |
| 161 | + if n.manager == nil { |
| 162 | + return nil |
| 163 | + } |
| 164 | + |
| 165 | + device, err := n.manager.GetDeviceByIpIface(name) |
| 166 | + if err != nil { |
| 167 | + klog.Errorf("failed to get device by IP iface %q: %v", name, err) |
| 168 | + return err |
| 169 | + } |
| 170 | + current, err := device.GetPropertyManaged() |
| 171 | + if err != nil { |
| 172 | + klog.Errorf("failed to get device property managed: %v", err) |
| 173 | + return err |
| 174 | + } |
| 175 | + if current == managed { |
| 176 | + return nil |
| 177 | + } |
| 178 | + |
| 179 | + klog.Infof(`setting device %s NetworkManager property "managed" to %v`, name, managed) |
| 180 | + if err = device.SetPropertyManaged(managed); err != nil { |
| 181 | + klog.Errorf("failed to set device property managed to %v: %v", managed, err) |
| 182 | + return err |
| 183 | + } |
| 184 | + |
| 185 | + return nil |
| 186 | +} |
0 commit comments