github.com/pwn-term/docker@v0.0.0-20210616085119-6e977cce2565/libnetwork/drivers/macvlan/macvlan_endpoint.go (about) 1 package macvlan 2 3 import ( 4 "fmt" 5 6 "github.com/docker/libnetwork/driverapi" 7 "github.com/docker/libnetwork/netlabel" 8 "github.com/docker/libnetwork/netutils" 9 "github.com/docker/libnetwork/ns" 10 "github.com/docker/libnetwork/osl" 11 "github.com/docker/libnetwork/types" 12 "github.com/sirupsen/logrus" 13 ) 14 15 // CreateEndpoint assigns the mac, ip and endpoint id for the new container 16 func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, 17 epOptions map[string]interface{}) error { 18 defer osl.InitOSContext()() 19 20 if err := validateID(nid, eid); err != nil { 21 return err 22 } 23 n, err := d.getNetwork(nid) 24 if err != nil { 25 return fmt.Errorf("network id %q not found", nid) 26 } 27 ep := &endpoint{ 28 id: eid, 29 nid: nid, 30 addr: ifInfo.Address(), 31 addrv6: ifInfo.AddressIPv6(), 32 mac: ifInfo.MacAddress(), 33 } 34 if ep.addr == nil { 35 return fmt.Errorf("create endpoint was not passed an IP address") 36 } 37 if ep.mac == nil { 38 ep.mac = netutils.GenerateMACFromIP(ep.addr.IP) 39 if err := ifInfo.SetMacAddress(ep.mac); err != nil { 40 return err 41 } 42 } 43 // disallow portmapping -p 44 if opt, ok := epOptions[netlabel.PortMap]; ok { 45 if _, ok := opt.([]types.PortBinding); ok { 46 if len(opt.([]types.PortBinding)) > 0 { 47 logrus.Warnf("%s driver does not support port mappings", macvlanType) 48 } 49 } 50 } 51 // disallow port exposure --expose 52 if opt, ok := epOptions[netlabel.ExposedPorts]; ok { 53 if _, ok := opt.([]types.TransportPort); ok { 54 if len(opt.([]types.TransportPort)) > 0 { 55 logrus.Warnf("%s driver does not support port exposures", macvlanType) 56 } 57 } 58 } 59 60 if err := d.storeUpdate(ep); err != nil { 61 return fmt.Errorf("failed to save macvlan endpoint %.7s to store: %v", ep.id, err) 62 } 63 64 n.addEndpoint(ep) 65 66 return nil 67 } 68 69 // DeleteEndpoint removes the endpoint and associated netlink interface 70 func (d *driver) DeleteEndpoint(nid, eid string) error { 71 defer osl.InitOSContext()() 72 if err := validateID(nid, eid); err != nil { 73 return err 74 } 75 n := d.network(nid) 76 if n == nil { 77 return fmt.Errorf("network id %q not found", nid) 78 } 79 ep := n.endpoint(eid) 80 if ep == nil { 81 return fmt.Errorf("endpoint id %q not found", eid) 82 } 83 if link, err := ns.NlHandle().LinkByName(ep.srcName); err == nil { 84 if err := ns.NlHandle().LinkDel(link); err != nil { 85 logrus.WithError(err).Warnf("Failed to delete interface (%s)'s link on endpoint (%s) delete", ep.srcName, ep.id) 86 } 87 } 88 89 if err := d.storeDelete(ep); err != nil { 90 logrus.Warnf("Failed to remove macvlan endpoint %.7s from store: %v", ep.id, err) 91 } 92 93 n.deleteEndpoint(ep.id) 94 95 return nil 96 }