runtime: move all code to src/runtime

To prepare for merging into kata-containers repository.

Signed-off-by: Peng Tao <bergwolf@hyper.sh>

src/runtime/virtcontainers/endpoint.go

@@ -0,0 +1,223 @@
+// Copyright (c) 2018 Intel Corporation
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package virtcontainers
+
+import (
+	"fmt"
+
+	persistapi "github.com/kata-containers/runtime/virtcontainers/persist/api"
+)
+
+// Endpoint represents a physical or virtual network interface.
+type Endpoint interface {
+	Properties() NetworkInfo
+	Name() string
+	HardwareAddr() string
+	Type() EndpointType
+	PciAddr() string
+	NetworkPair() *NetworkInterfacePair
+
+	SetProperties(NetworkInfo)
+	SetPciAddr(string)
+	Attach(hypervisor) error
+	Detach(netNsCreated bool, netNsPath string) error
+	HotAttach(h hypervisor) error
+	HotDetach(h hypervisor, netNsCreated bool, netNsPath string) error
+
+	save() persistapi.NetworkEndpoint
+	load(persistapi.NetworkEndpoint)
+}
+
+// EndpointType identifies the type of the network endpoint.
+type EndpointType string
+
+const (
+	// PhysicalEndpointType is the physical network interface.
+	PhysicalEndpointType EndpointType = "physical"
+
+	// VethEndpointType is the virtual network interface.
+	VethEndpointType EndpointType = "virtual"
+
+	// VhostUserEndpointType is the vhostuser network interface.
+	VhostUserEndpointType EndpointType = "vhost-user"
+
+	// BridgedMacvlanEndpointType is macvlan network interface.
+	BridgedMacvlanEndpointType EndpointType = "macvlan"
+
+	// MacvtapEndpointType is macvtap network interface.
+	MacvtapEndpointType EndpointType = "macvtap"
+
+	// TapEndpointType is tap network interface.
+	TapEndpointType EndpointType = "tap"
+
+	// TuntapEndpointType is a tap network interface.
+	TuntapEndpointType EndpointType = "tuntap"
+
+	// IPVlanEndpointType is ipvlan network interface.
+	IPVlanEndpointType EndpointType = "ipvlan"
+)
+
+// Set sets an endpoint type based on the input string.
+func (endpointType *EndpointType) Set(value string) error {
+	switch value {
+	case "physical":
+		*endpointType = PhysicalEndpointType
+		return nil
+	case "virtual":
+		*endpointType = VethEndpointType
+		return nil
+	case "vhost-user":
+		*endpointType = VhostUserEndpointType
+		return nil
+	case "macvlan":
+		*endpointType = BridgedMacvlanEndpointType
+		return nil
+	case "macvtap":
+		*endpointType = MacvtapEndpointType
+		return nil
+	case "tap":
+		*endpointType = TapEndpointType
+		return nil
+	case "tuntap":
+		*endpointType = TuntapEndpointType
+		return nil
+	case "ipvlan":
+		*endpointType = IPVlanEndpointType
+		return nil
+	default:
+		return fmt.Errorf("Unknown endpoint type %s", value)
+	}
+}
+
+// String converts an endpoint type to a string.
+func (endpointType *EndpointType) String() string {
+	switch *endpointType {
+	case PhysicalEndpointType:
+		return string(PhysicalEndpointType)
+	case VethEndpointType:
+		return string(VethEndpointType)
+	case VhostUserEndpointType:
+		return string(VhostUserEndpointType)
+	case BridgedMacvlanEndpointType:
+		return string(BridgedMacvlanEndpointType)
+	case MacvtapEndpointType:
+		return string(MacvtapEndpointType)
+	case TapEndpointType:
+		return string(TapEndpointType)
+	case TuntapEndpointType:
+		return string(TuntapEndpointType)
+	case IPVlanEndpointType:
+		return string(IPVlanEndpointType)
+	default:
+		return ""
+	}
+}
+
+func saveTapIf(tapif *TapInterface) *persistapi.TapInterface {
+	if tapif == nil {
+		return nil
+	}
+
+	return &persistapi.TapInterface{
+		ID:   tapif.ID,
+		Name: tapif.Name,
+		TAPIface: persistapi.NetworkInterface{
+			Name:     tapif.TAPIface.Name,
+			HardAddr: tapif.TAPIface.HardAddr,
+			Addrs:    tapif.TAPIface.Addrs,
+		},
+	}
+}
+
+func loadTapIf(tapif *persistapi.TapInterface) *TapInterface {
+	if tapif == nil {
+		return nil
+	}
+
+	return &TapInterface{
+		ID:   tapif.ID,
+		Name: tapif.Name,
+		TAPIface: NetworkInterface{
+			Name:     tapif.TAPIface.Name,
+			HardAddr: tapif.TAPIface.HardAddr,
+			Addrs:    tapif.TAPIface.Addrs,
+		},
+	}
+}
+
+func saveNetIfPair(pair *NetworkInterfacePair) *persistapi.NetworkInterfacePair {
+	if pair == nil {
+		return nil
+	}
+
+	epVirtIf := pair.VirtIface
+
+	tapif := saveTapIf(&pair.TapInterface)
+
+	virtif := persistapi.NetworkInterface{
+		Name:     epVirtIf.Name,
+		HardAddr: epVirtIf.HardAddr,
+		Addrs:    epVirtIf.Addrs,
+	}
+
+	return &persistapi.NetworkInterfacePair{
+		TapInterface:         *tapif,
+		VirtIface:            virtif,
+		NetInterworkingModel: int(pair.NetInterworkingModel),
+	}
+}
+
+func loadNetIfPair(pair *persistapi.NetworkInterfacePair) *NetworkInterfacePair {
+	if pair == nil {
+		return nil
+	}
+
+	savedVirtIf := pair.VirtIface
+
+	tapif := loadTapIf(&pair.TapInterface)
+
+	virtif := NetworkInterface{
+		Name:     savedVirtIf.Name,
+		HardAddr: savedVirtIf.HardAddr,
+		Addrs:    savedVirtIf.Addrs,
+	}
+
+	return &NetworkInterfacePair{
+		TapInterface:         *tapif,
+		VirtIface:            virtif,
+		NetInterworkingModel: NetInterworkingModel(pair.NetInterworkingModel),
+	}
+}
+
+func saveTuntapIf(tuntapif *TuntapInterface) *persistapi.TuntapInterface {
+	if tuntapif == nil {
+		return nil
+	}
+
+	return &persistapi.TuntapInterface{
+		Name: tuntapif.Name,
+		TAPIface: persistapi.NetworkInterface{
+			Name:     tuntapif.TAPIface.Name,
+			HardAddr: tuntapif.TAPIface.HardAddr,
+			Addrs:    tuntapif.TAPIface.Addrs,
+		},
+	}
+}
+
+func loadTuntapIf(tuntapif *persistapi.TuntapInterface) *TuntapInterface {
+	if tuntapif == nil {
+		return nil
+	}
+
+	return &TuntapInterface{
+		Name: tuntapif.Name,
+		TAPIface: NetworkInterface{
+			Name:     tuntapif.TAPIface.Name,
+			HardAddr: tuntapif.TAPIface.HardAddr,
+			Addrs:    tuntapif.TAPIface.Addrs,
+		},
+	}
+}