1package null
2
3import (
4	"sync"
5
6	"github.com/docker/libnetwork/datastore"
7	"github.com/docker/libnetwork/discoverapi"
8	"github.com/docker/libnetwork/driverapi"
9	"github.com/docker/libnetwork/types"
10)
11
12const networkType = "null"
13
14type driver struct {
15	network string
16	sync.Mutex
17}
18
19// Init registers a new instance of null driver
20func Init(dc driverapi.DriverCallback, config map[string]interface{}) error {
21	c := driverapi.Capability{
22		DataScope: datastore.LocalScope,
23	}
24	return dc.RegisterDriver(networkType, &driver{}, c)
25}
26
27func (d *driver) NetworkAllocate(id string, option map[string]string, ipV4Data, ipV6Data []driverapi.IPAMData) (map[string]string, error) {
28	return nil, types.NotImplementedErrorf("not implemented")
29}
30
31func (d *driver) NetworkFree(id string) error {
32	return types.NotImplementedErrorf("not implemented")
33}
34
35func (d *driver) EventNotify(etype driverapi.EventType, nid, tableName, key string, value []byte) {
36}
37
38func (d *driver) DecodeTableEntry(tablename string, key string, value []byte) (string, map[string]string) {
39	return "", nil
40}
41
42func (d *driver) CreateNetwork(id string, option map[string]interface{}, nInfo driverapi.NetworkInfo, ipV4Data, ipV6Data []driverapi.IPAMData) error {
43	d.Lock()
44	defer d.Unlock()
45
46	if d.network != "" {
47		return types.ForbiddenErrorf("only one instance of \"%s\" network is allowed", networkType)
48	}
49
50	d.network = id
51
52	return nil
53}
54
55func (d *driver) DeleteNetwork(nid string) error {
56	return types.ForbiddenErrorf("network of type \"%s\" cannot be deleted", networkType)
57}
58
59func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
60	return nil
61}
62
63func (d *driver) DeleteEndpoint(nid, eid string) error {
64	return nil
65}
66
67func (d *driver) EndpointOperInfo(nid, eid string) (map[string]interface{}, error) {
68	return make(map[string]interface{}, 0), nil
69}
70
71// Join method is invoked when a Sandbox is attached to an endpoint.
72func (d *driver) Join(nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
73	return nil
74}
75
76// Leave method is invoked when a Sandbox detaches from an endpoint.
77func (d *driver) Leave(nid, eid string) error {
78	return nil
79}
80
81func (d *driver) ProgramExternalConnectivity(nid, eid string, options map[string]interface{}) error {
82	return nil
83}
84
85func (d *driver) RevokeExternalConnectivity(nid, eid string) error {
86	return nil
87}
88
89func (d *driver) Type() string {
90	return networkType
91}
92
93func (d *driver) IsBuiltIn() bool {
94	return true
95}
96
97// DiscoverNew is a notification for a new discovery event, such as a new node joining a cluster
98func (d *driver) DiscoverNew(dType discoverapi.DiscoveryType, data interface{}) error {
99	return nil
100}
101
102// DiscoverDelete is a notification for a discovery delete event, such as a node leaving a cluster
103func (d *driver) DiscoverDelete(dType discoverapi.DiscoveryType, data interface{}) error {
104	return nil
105}
106