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package null
import (
"context"
"sync"
"github.com/docker/docker/libnetwork/driverapi"
"github.com/docker/docker/libnetwork/scope"
"github.com/docker/docker/libnetwork/types"
)
const NetworkType = "null"
type driver struct {
network string
sync.Mutex
}
// Register registers a new instance of the null driver.
func Register(r driverapi.Registerer) error {
return r.RegisterDriver(NetworkType, &driver{}, driverapi.Capability{
DataScope: scope.Local,
})
}
func (d *driver) NetworkAllocate(id string, option map[string]string, ipV4Data, ipV6Data []driverapi.IPAMData) (map[string]string, error) {
return nil, types.NotImplementedErrorf("not implemented")
}
func (d *driver) NetworkFree(id string) error {
return types.NotImplementedErrorf("not implemented")
}
func (d *driver) EventNotify(etype driverapi.EventType, nid, tableName, key string, value []byte) {
}
func (d *driver) DecodeTableEntry(tablename string, key string, value []byte) (string, map[string]string) {
return "", nil
}
func (d *driver) CreateNetwork(id string, option map[string]interface{}, nInfo driverapi.NetworkInfo, ipV4Data, ipV6Data []driverapi.IPAMData) error {
d.Lock()
defer d.Unlock()
if d.network != "" {
return types.ForbiddenErrorf("only one instance of %q network is allowed", NetworkType)
}
d.network = id
return nil
}
func (d *driver) DeleteNetwork(nid string) error {
return types.ForbiddenErrorf("network of type %q cannot be deleted", NetworkType)
}
func (d *driver) CreateEndpoint(_ context.Context, nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
return nil
}
func (d *driver) DeleteEndpoint(nid, eid string) error {
return nil
}
func (d *driver) EndpointOperInfo(nid, eid string) (map[string]interface{}, error) {
return make(map[string]interface{}), nil
}
// Join method is invoked when a Sandbox is attached to an endpoint.
func (d *driver) Join(_ context.Context, nid, eid string, sboxKey string, jinfo driverapi.JoinInfo, options map[string]interface{}) error {
return nil
}
// Leave method is invoked when a Sandbox detaches from an endpoint.
func (d *driver) Leave(nid, eid string) error {
return nil
}
func (d *driver) ProgramExternalConnectivity(_ context.Context, nid, eid string, options map[string]interface{}) error {
return nil
}
func (d *driver) RevokeExternalConnectivity(nid, eid string) error {
return nil
}
func (d *driver) Type() string {
return NetworkType
}
func (d *driver) IsBuiltIn() bool {
return true
}
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