libnetwork/drivers/windows/windows_store.go
//go:build windows
package windows
import (
"context"
"encoding/json"
"fmt"
"net"
"github.com/containerd/log"
"github.com/docker/docker/libnetwork/datastore"
"github.com/docker/docker/libnetwork/netlabel"
"github.com/docker/docker/libnetwork/types"
)
const (
windowsPrefix = "windows"
windowsEndpointPrefix = "windows-endpoint"
)
func (d *driver) initStore(option map[string]interface{}) error {
if data, ok := option[netlabel.LocalKVClient]; ok {
var ok bool
d.store, ok = data.(*datastore.Store)
if !ok {
return types.InternalErrorf("incorrect data in datastore configuration: %v", data)
}
err := d.populateNetworks()
if err != nil {
return err
}
err = d.populateEndpoints()
if err != nil {
return err
}
}
return nil
}
func (d *driver) populateNetworks() error {
kvol, err := d.store.List(&networkConfiguration{Type: d.name})
if err != nil && err != datastore.ErrKeyNotFound {
return fmt.Errorf("failed to get windows network configurations from store: %v", err)
}
// It's normal for network configuration state to be empty. Just return.
if err == datastore.ErrKeyNotFound {
return nil
}
for _, kvo := range kvol {
ncfg := kvo.(*networkConfiguration)
if ncfg.Type != d.name {
continue
}
d.createNetwork(ncfg)
log.G(context.TODO()).Debugf("Network %v (%.7s) restored", d.name, ncfg.ID)
}
return nil
}
func (d *driver) populateEndpoints() error {
kvol, err := d.store.List(&hnsEndpoint{Type: d.name})
if err != nil && err != datastore.ErrKeyNotFound {
return fmt.Errorf("failed to get endpoints from store: %v", err)
}
if err == datastore.ErrKeyNotFound {
return nil
}
for _, kvo := range kvol {
ep := kvo.(*hnsEndpoint)
if ep.Type != d.name {
continue
}
n, ok := d.networks[ep.nid]
if !ok {
log.G(context.TODO()).Debugf("Network (%.7s) not found for restored endpoint (%.7s)", ep.nid, ep.id)
log.G(context.TODO()).Debugf("Deleting stale endpoint (%.7s) from store", ep.id)
if err := d.storeDelete(ep); err != nil {
log.G(context.TODO()).Debugf("Failed to delete stale endpoint (%.7s) from store", ep.id)
}
continue
}
n.endpoints[ep.id] = ep
log.G(context.TODO()).Debugf("Endpoint (%.7s) restored to network (%.7s)", ep.id, ep.nid)
}
return nil
}
func (d *driver) storeUpdate(kvObject datastore.KVObject) error {
if d.store == nil {
log.G(context.TODO()).Warnf("store not initialized. kv object %s is not added to the store", datastore.Key(kvObject.Key()...))
return nil
}
if err := d.store.PutObjectAtomic(kvObject); err != nil {
return fmt.Errorf("failed to update store for object type %T: %v", kvObject, err)
}
return nil
}
func (d *driver) storeDelete(kvObject datastore.KVObject) error {
if d.store == nil {
log.G(context.TODO()).Debugf("store not initialized. kv object %s is not deleted from store", datastore.Key(kvObject.Key()...))
return nil
}
return d.store.DeleteObject(kvObject)
}
func (ncfg *networkConfiguration) MarshalJSON() ([]byte, error) {
nMap := make(map[string]interface{})
nMap["ID"] = ncfg.ID
nMap["Type"] = ncfg.Type
nMap["Name"] = ncfg.Name
nMap["HnsID"] = ncfg.HnsID
nMap["VLAN"] = ncfg.VLAN
nMap["VSID"] = ncfg.VSID
nMap["DNSServers"] = ncfg.DNSServers
nMap["DNSSuffix"] = ncfg.DNSSuffix
nMap["SourceMac"] = ncfg.SourceMac
nMap["NetworkAdapterName"] = ncfg.NetworkAdapterName
return json.Marshal(nMap)
}
func (ncfg *networkConfiguration) UnmarshalJSON(b []byte) error {
var (
err error
nMap map[string]interface{}
)
if err = json.Unmarshal(b, &nMap); err != nil {
return err
}
ncfg.ID = nMap["ID"].(string)
ncfg.Type = nMap["Type"].(string)
ncfg.Name = nMap["Name"].(string)
ncfg.HnsID = nMap["HnsID"].(string)
ncfg.VLAN = uint(nMap["VLAN"].(float64))
ncfg.VSID = uint(nMap["VSID"].(float64))
ncfg.DNSServers = nMap["DNSServers"].(string)
ncfg.DNSSuffix = nMap["DNSSuffix"].(string)
ncfg.SourceMac = nMap["SourceMac"].(string)
ncfg.NetworkAdapterName = nMap["NetworkAdapterName"].(string)
return nil
}
func (ncfg *networkConfiguration) Key() []string {
return []string{windowsPrefix + ncfg.Type, ncfg.ID}
}
func (ncfg *networkConfiguration) KeyPrefix() []string {
return []string{windowsPrefix + ncfg.Type}
}
func (ncfg *networkConfiguration) Value() []byte {
b, err := json.Marshal(ncfg)
if err != nil {
return nil
}
return b
}
func (ncfg *networkConfiguration) SetValue(value []byte) error {
return json.Unmarshal(value, ncfg)
}
func (ncfg *networkConfiguration) Index() uint64 {
return ncfg.dbIndex
}
func (ncfg *networkConfiguration) SetIndex(index uint64) {
ncfg.dbIndex = index
ncfg.dbExists = true
}
func (ncfg *networkConfiguration) Exists() bool {
return ncfg.dbExists
}
func (ncfg *networkConfiguration) Skip() bool {
return false
}
func (ncfg *networkConfiguration) New() datastore.KVObject {
return &networkConfiguration{Type: ncfg.Type}
}
func (ncfg *networkConfiguration) CopyTo(o datastore.KVObject) error {
dstNcfg := o.(*networkConfiguration)
*dstNcfg = *ncfg
return nil
}
func (ep *hnsEndpoint) MarshalJSON() ([]byte, error) {
epMap := make(map[string]interface{})
epMap["id"] = ep.id
epMap["nid"] = ep.nid
epMap["Type"] = ep.Type
epMap["profileID"] = ep.profileID
epMap["MacAddress"] = ep.macAddress.String()
if ep.addr.IP != nil {
epMap["Addr"] = ep.addr.String()
}
if ep.gateway != nil {
epMap["gateway"] = ep.gateway.String()
}
epMap["epOption"] = ep.epOption
epMap["epConnectivity"] = ep.epConnectivity
epMap["PortMapping"] = ep.portMapping
return json.Marshal(epMap)
}
func (ep *hnsEndpoint) UnmarshalJSON(b []byte) error {
var (
err error
epMap map[string]interface{}
)
if err = json.Unmarshal(b, &epMap); err != nil {
return fmt.Errorf("Failed to unmarshal to endpoint: %v", err)
}
if v, ok := epMap["MacAddress"]; ok {
if ep.macAddress, err = net.ParseMAC(v.(string)); err != nil {
return types.InternalErrorf("failed to decode endpoint MAC address (%s) after json unmarshal: %v", v.(string), err)
}
}
if v, ok := epMap["Addr"]; ok {
if ep.addr, err = types.ParseCIDR(v.(string)); err != nil {
log.G(context.TODO()).Warnf("failed to decode endpoint IPv4 address (%s) after json unmarshal: %v", v.(string), err)
}
}
if v, ok := epMap["gateway"]; ok {
ep.gateway = net.ParseIP(v.(string))
}
ep.id = epMap["id"].(string)
ep.Type = epMap["Type"].(string)
ep.nid = epMap["nid"].(string)
ep.profileID = epMap["profileID"].(string)
d, _ := json.Marshal(epMap["epOption"])
if err := json.Unmarshal(d, &ep.epOption); err != nil {
log.G(context.TODO()).Warnf("Failed to decode endpoint container config %v", err)
}
d, _ = json.Marshal(epMap["epConnectivity"])
if err := json.Unmarshal(d, &ep.epConnectivity); err != nil {
log.G(context.TODO()).Warnf("Failed to decode endpoint external connectivity configuration %v", err)
}
d, _ = json.Marshal(epMap["PortMapping"])
if err := json.Unmarshal(d, &ep.portMapping); err != nil {
log.G(context.TODO()).Warnf("Failed to decode endpoint port mapping %v", err)
}
return nil
}
func (ep *hnsEndpoint) Key() []string {
return []string{windowsEndpointPrefix + ep.Type, ep.id}
}
func (ep *hnsEndpoint) KeyPrefix() []string {
return []string{windowsEndpointPrefix + ep.Type}
}
func (ep *hnsEndpoint) Value() []byte {
b, err := json.Marshal(ep)
if err != nil {
return nil
}
return b
}
func (ep *hnsEndpoint) SetValue(value []byte) error {
return json.Unmarshal(value, ep)
}
func (ep *hnsEndpoint) Index() uint64 {
return ep.dbIndex
}
func (ep *hnsEndpoint) SetIndex(index uint64) {
ep.dbIndex = index
ep.dbExists = true
}
func (ep *hnsEndpoint) Exists() bool {
return ep.dbExists
}
func (ep *hnsEndpoint) Skip() bool {
return false
}
func (ep *hnsEndpoint) New() datastore.KVObject {
return &hnsEndpoint{Type: ep.Type}
}
func (ep *hnsEndpoint) CopyTo(o datastore.KVObject) error {
dstEp := o.(*hnsEndpoint)
*dstEp = *ep
return nil
}