github.com/docker/engine@v22.0.0-20211208180946-d456264580cf+incompatible/libnetwork/drivers/ipvlan/ipvlan.go (about)

     1  //go:build linux
     2  // +build linux
     3  
     4  package ipvlan
     5  
     6  import (
     7  	"net"
     8  	"sync"
     9  
    10  	"github.com/docker/docker/libnetwork/datastore"
    11  	"github.com/docker/docker/libnetwork/discoverapi"
    12  	"github.com/docker/docker/libnetwork/driverapi"
    13  	"github.com/docker/docker/libnetwork/types"
    14  )
    15  
    16  const (
    17  	vethLen             = 7
    18  	containerVethPrefix = "eth"
    19  	vethPrefix          = "veth"
    20  	ipvlanType          = "ipvlan" // driver type name
    21  	modeL2              = "l2"     // ipvlan mode l2 is the default
    22  	modeL3              = "l3"     // ipvlan L3 mode
    23  	parentOpt           = "parent" // parent interface -o parent
    24  	modeOpt             = "_mode"  // ipvlan mode ux opt suffix
    25  )
    26  
    27  var driverModeOpt = ipvlanType + modeOpt // mode -o ipvlan_mode
    28  
    29  type endpointTable map[string]*endpoint
    30  
    31  type networkTable map[string]*network
    32  
    33  type driver struct {
    34  	networks networkTable
    35  	sync.Once
    36  	sync.Mutex
    37  	store datastore.DataStore
    38  }
    39  
    40  type endpoint struct {
    41  	id       string
    42  	nid      string
    43  	mac      net.HardwareAddr
    44  	addr     *net.IPNet
    45  	addrv6   *net.IPNet
    46  	srcName  string
    47  	dbIndex  uint64
    48  	dbExists bool
    49  }
    50  
    51  type network struct {
    52  	id        string
    53  	endpoints endpointTable
    54  	driver    *driver
    55  	config    *configuration
    56  	sync.Mutex
    57  }
    58  
    59  // Init initializes and registers the libnetwork ipvlan driver
    60  func Init(dc driverapi.DriverCallback, config map[string]interface{}) error {
    61  	c := driverapi.Capability{
    62  		DataScope:         datastore.LocalScope,
    63  		ConnectivityScope: datastore.GlobalScope,
    64  	}
    65  	d := &driver{
    66  		networks: networkTable{},
    67  	}
    68  	if err := d.initStore(config); err != nil {
    69  		return err
    70  	}
    71  
    72  	return dc.RegisterDriver(ipvlanType, d, c)
    73  }
    74  
    75  func (d *driver) NetworkAllocate(id string, option map[string]string, ipV4Data, ipV6Data []driverapi.IPAMData) (map[string]string, error) {
    76  	return nil, types.NotImplementedErrorf("not implemented")
    77  }
    78  
    79  func (d *driver) NetworkFree(id string) error {
    80  	return types.NotImplementedErrorf("not implemented")
    81  }
    82  
    83  func (d *driver) EndpointOperInfo(nid, eid string) (map[string]interface{}, error) {
    84  	return make(map[string]interface{}), nil
    85  }
    86  
    87  func (d *driver) Type() string {
    88  	return ipvlanType
    89  }
    90  
    91  func (d *driver) IsBuiltIn() bool {
    92  	return true
    93  }
    94  
    95  func (d *driver) ProgramExternalConnectivity(nid, eid string, options map[string]interface{}) error {
    96  	return nil
    97  }
    98  
    99  func (d *driver) RevokeExternalConnectivity(nid, eid string) error {
   100  	return nil
   101  }
   102  
   103  // DiscoverNew is a notification for a new discovery event.
   104  func (d *driver) DiscoverNew(dType discoverapi.DiscoveryType, data interface{}) error {
   105  	return nil
   106  }
   107  
   108  // DiscoverDelete is a notification for a discovery delete event.
   109  func (d *driver) DiscoverDelete(dType discoverapi.DiscoveryType, data interface{}) error {
   110  	return nil
   111  }
   112  
   113  func (d *driver) EventNotify(etype driverapi.EventType, nid, tableName, key string, value []byte) {
   114  }
   115  
   116  func (d *driver) DecodeTableEntry(tablename string, key string, value []byte) (string, map[string]string) {
   117  	return "", nil
   118  }