func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo,
epOptions map[string]interface{}) error {
if err := validateID(nid, eid); err != nil {
return err
}
n := d.network(nid)
if n == nil {
return fmt.Errorf("network id %q not found", nid)
}
ep := &endpoint{
id: eid,
addr: ifInfo.Address(),
mac: ifInfo.MacAddress(),
}
if ep.addr == nil {
return fmt.Errorf("create endpoint was not passed interface IP address")
}
if ep.mac == nil {
ep.mac = netutils.GenerateMACFromIP(ep.addr.IP)
if err := ifInfo.SetMacAddress(ep.mac); err != nil {
return err
}
}
n.addEndpoint(ep)
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
n, err := d.getNetwork(nid)
if err != nil {
return err
}
// Check if endpoint id is good and retrieve corresponding endpoint
ep, err := n.getEndpoint(eid)
if err == nil && ep != nil {
return driverapi.ErrEndpointExists(eid)
}
endpointStruct := &hcsshim.HNSEndpoint{
VirtualNetwork: n.config.HnsID,
}
// Convert the port mapping for the network
if opt, ok := epOptions[netlabel.PortMap]; ok {
if bs, ok := opt.([]types.PortBinding); ok {
endpointStruct.Policies, err = convertPortBindings(bs)
if err != nil {
return err
}
} else {
return fmt.Errorf("Invalid endpoint configuration for endpoint id%s", eid)
}
}
configurationb, err := json.Marshal(endpointStruct)
if err != nil {
return err
}
hnsresponse, err := hcsshim.HNSEndpointRequest("POST", "", string(configurationb))
if err != nil {
return err
}
mac, err := net.ParseMAC(hnsresponse.MacAddress)
if err != nil {
return err
}
// TODO For now the ip mask is not in the info generated by HNS
endpoint := &hnsEndpoint{
id: eid,
addr: &net.IPNet{IP: hnsresponse.IPAddress, Mask: hnsresponse.IPAddress.DefaultMask()},
macAddress: mac,
}
endpoint.profileID = hnsresponse.Id
n.Lock()
n.endpoints[eid] = endpoint
n.Unlock()
ifInfo.SetIPAddress(endpoint.addr)
ifInfo.SetMacAddress(endpoint.macAddress)
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
if ifInfo == nil {
return errors.New("must not be called with nil InterfaceInfo")
}
reqIface := &api.EndpointInterface{}
if ifInfo.Address() != nil {
reqIface.Address = ifInfo.Address().String()
}
if ifInfo.AddressIPv6() != nil {
reqIface.AddressIPv6 = ifInfo.AddressIPv6().String()
}
if ifInfo.MacAddress() != nil {
reqIface.MacAddress = ifInfo.MacAddress().String()
}
create := &api.CreateEndpointRequest{
NetworkID: nid,
EndpointID: eid,
Interface: reqIface,
Options: epOptions,
}
var res api.CreateEndpointResponse
if err := d.call("CreateEndpoint", create, &res); err != nil {
return err
}
inIface, err := parseInterface(res)
if err != nil {
return err
}
if inIface == nil {
// Remote driver did not set any field
return nil
}
if inIface.MacAddress != nil {
if err := ifInfo.SetMacAddress(inIface.MacAddress); err != nil {
return errorWithRollback(fmt.Sprintf("driver modified interface MAC address: %v", err), d.DeleteEndpoint(nid, eid))
}
}
if inIface.Address != nil {
if err := ifInfo.SetIPAddress(inIface.Address); err != nil {
return errorWithRollback(fmt.Sprintf("driver modified interface address: %v", err), d.DeleteEndpoint(nid, eid))
}
}
if inIface.AddressIPv6 != nil {
if err := ifInfo.SetIPAddress(inIface.AddressIPv6); err != nil {
return errorWithRollback(fmt.Sprintf("driver modified interface address: %v", err), d.DeleteEndpoint(nid, eid))
}
}
return nil
}
// CreateEndpoint assigns the mac, ip and endpoint id for the new container
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo,
epOptions map[string]interface{}) error {
defer osl.InitOSContext()()
if err := validateID(nid, eid); err != nil {
return err
}
n, err := d.getNetwork(nid)
if err != nil {
return fmt.Errorf("network id %q not found", nid)
}
ep := &endpoint{
id: eid,
nid: nid,
addr: ifInfo.Address(),
addrv6: ifInfo.AddressIPv6(),
mac: ifInfo.MacAddress(),
}
if ep.addr == nil {
return fmt.Errorf("create endpoint was not passed an IP address")
}
if ep.mac == nil {
ep.mac = netutils.GenerateMACFromIP(ep.addr.IP)
if err := ifInfo.SetMacAddress(ep.mac); err != nil {
return err
}
}
// disallow portmapping -p
if opt, ok := epOptions[netlabel.PortMap]; ok {
if _, ok := opt.([]types.PortBinding); ok {
if len(opt.([]types.PortBinding)) > 0 {
logrus.Warnf("%s driver does not support port mappings", macvlanType)
}
}
}
// disallow port exposure --expose
if opt, ok := epOptions[netlabel.ExposedPorts]; ok {
if _, ok := opt.([]types.TransportPort); ok {
if len(opt.([]types.TransportPort)) > 0 {
logrus.Warnf("%s driver does not support port exposures", macvlanType)
}
}
}
if err := d.storeUpdate(ep); err != nil {
return fmt.Errorf("failed to save macvlan endpoint %s to store: %v", ep.id[0:7], err)
}
n.addEndpoint(ep)
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo,
epOptions map[string]interface{}) error {
var err error
if err = validateID(nid, eid); err != nil {
return err
}
// Since we perform lazy configuration make sure we try
// configuring the driver when we enter CreateEndpoint since
// CreateNetwork may not be called in every node.
if err := d.configure(); err != nil {
return err
}
n := d.network(nid)
if n == nil {
return fmt.Errorf("network id %q not found", nid)
}
ep := &endpoint{
id: eid,
nid: n.id,
addr: ifInfo.Address(),
mac: ifInfo.MacAddress(),
}
if ep.addr == nil {
return fmt.Errorf("create endpoint was not passed interface IP address")
}
if s := n.getSubnetforIP(ep.addr); s == nil {
return fmt.Errorf("no matching subnet for IP %q in network %q", ep.addr, nid)
}
if ep.mac == nil {
ep.mac = netutils.GenerateMACFromIP(ep.addr.IP)
if err := ifInfo.SetMacAddress(ep.mac); err != nil {
return err
}
}
n.addEndpoint(ep)
if err := d.writeEndpointToStore(ep); err != nil {
return fmt.Errorf("failed to update overlay endpoint %s to local store: %v", ep.id[0:7], err)
}
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
defer osl.InitOSContext()()
if ifInfo == nil {
return errors.New("invalid interface info passed")
}
// Get the network handler and make sure it exists
d.Lock()
n, ok := d.networks[nid]
dconfig := d.config
d.Unlock()
if !ok {
return types.NotFoundErrorf("network %s does not exist", nid)
}
if n == nil {
return driverapi.ErrNoNetwork(nid)
}
// Sanity check
n.Lock()
if n.id != nid {
n.Unlock()
return InvalidNetworkIDError(nid)
}
n.Unlock()
// Check if endpoint id is good and retrieve correspondent endpoint
ep, err := n.getEndpoint(eid)
if err != nil {
return err
}
// Endpoint with that id exists either on desired or other sandbox
if ep != nil {
return driverapi.ErrEndpointExists(eid)
}
// Try to convert the options to endpoint configuration
epConfig, err := parseEndpointOptions(epOptions)
if err != nil {
return err
}
// Create and add the endpoint
n.Lock()
endpoint := &bridgeEndpoint{id: eid, config: epConfig}
n.endpoints[eid] = endpoint
n.Unlock()
// On failure make sure to remove the endpoint
defer func() {
if err != nil {
n.Lock()
delete(n.endpoints, eid)
n.Unlock()
}
}()
// Generate a name for what will be the host side pipe interface
hostIfName, err := netutils.GenerateIfaceName(vethPrefix, vethLen)
if err != nil {
return err
}
// Generate a name for what will be the sandbox side pipe interface
containerIfName, err := netutils.GenerateIfaceName(vethPrefix, vethLen)
if err != nil {
return err
}
// Generate and add the interface pipe host <-> sandbox
veth := &netlink.Veth{
LinkAttrs: netlink.LinkAttrs{Name: hostIfName, TxQLen: 0},
PeerName: containerIfName}
if err = netlink.LinkAdd(veth); err != nil {
return types.InternalErrorf("failed to add the host (%s) <=> sandbox (%s) pair interfaces: %v", hostIfName, containerIfName, err)
}
// Get the host side pipe interface handler
host, err := netlink.LinkByName(hostIfName)
if err != nil {
return types.InternalErrorf("failed to find host side interface %s: %v", hostIfName, err)
}
defer func() {
if err != nil {
netlink.LinkDel(host)
}
}()
// Get the sandbox side pipe interface handler
sbox, err := netlink.LinkByName(containerIfName)
if err != nil {
return types.InternalErrorf("failed to find sandbox side interface %s: %v", containerIfName, err)
}
defer func() {
if err != nil {
netlink.LinkDel(sbox)
}
}()
n.Lock()
config := n.config
n.Unlock()
// Add bridge inherited attributes to pipe interfaces
if config.Mtu != 0 {
err = netlink.LinkSetMTU(host, config.Mtu)
if err != nil {
return types.InternalErrorf("failed to set MTU on host interface %s: %v", hostIfName, err)
}
err = netlink.LinkSetMTU(sbox, config.Mtu)
if err != nil {
return types.InternalErrorf("failed to set MTU on sandbox interface %s: %v", containerIfName, err)
}
}
// Attach host side pipe interface into the bridge
if err = addToBridge(hostIfName, config.BridgeName); err != nil {
return fmt.Errorf("adding interface %s to bridge %s failed: %v", hostIfName, config.BridgeName, err)
}
if !dconfig.EnableUserlandProxy {
err = setHairpinMode(host, true)
if err != nil {
return err
}
}
// Store the sandbox side pipe interface parameters
endpoint.srcName = containerIfName
endpoint.macAddress = ifInfo.MacAddress()
endpoint.addr = ifInfo.Address()
endpoint.addrv6 = ifInfo.AddressIPv6()
// Set the sbox's MAC if not provided. If specified, use the one configured by user, otherwise generate one based on IP.
if endpoint.macAddress == nil {
endpoint.macAddress = electMacAddress(epConfig, endpoint.addr.IP)
if err = ifInfo.SetMacAddress(endpoint.macAddress); err != nil {
return err
}
}
// Up the host interface after finishing all netlink configuration
if err = netlink.LinkSetUp(host); err != nil {
return fmt.Errorf("could not set link up for host interface %s: %v", hostIfName, err)
}
if endpoint.addrv6 == nil && config.EnableIPv6 {
var ip6 net.IP
network := n.bridge.bridgeIPv6
if config.AddressIPv6 != nil {
network = config.AddressIPv6
}
ones, _ := network.Mask.Size()
if ones > 80 {
err = types.ForbiddenErrorf("Cannot self generate an IPv6 address on network %v: At least 48 host bits are needed.", network)
return err
}
ip6 = make(net.IP, len(network.IP))
copy(ip6, network.IP)
for i, h := range endpoint.macAddress {
ip6[i+10] = h
}
endpoint.addrv6 = &net.IPNet{IP: ip6, Mask: network.Mask}
if err = ifInfo.SetIPAddress(endpoint.addrv6); err != nil {
return err
}
}
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
n, err := d.getNetwork(nid)
if err != nil {
return err
}
// Check if endpoint id is good and retrieve corresponding endpoint
ep, err := n.getEndpoint(eid)
if err == nil && ep != nil {
return driverapi.ErrEndpointExists(eid)
}
endpointStruct := &hcsshim.HNSEndpoint{
VirtualNetwork: n.config.HnsID,
}
ec, err := parseEndpointOptions(epOptions)
macAddress := ifInfo.MacAddress()
// Use the macaddress if it was provided
if macAddress != nil {
endpointStruct.MacAddress = strings.Replace(macAddress.String(), ":", "-", -1)
}
endpointStruct.Policies, err = convertPortBindings(ec.PortBindings)
if err != nil {
return err
}
qosPolicies, err := convertQosPolicies(ec.QosPolicies)
if err != nil {
return err
}
endpointStruct.Policies = append(endpointStruct.Policies, qosPolicies...)
if ifInfo.Address() != nil {
endpointStruct.IPAddress = ifInfo.Address().IP
}
configurationb, err := json.Marshal(endpointStruct)
if err != nil {
return err
}
hnsresponse, err := hcsshim.HNSEndpointRequest("POST", "", string(configurationb))
if err != nil {
return err
}
mac, err := net.ParseMAC(hnsresponse.MacAddress)
if err != nil {
return err
}
// TODO For now the ip mask is not in the info generated by HNS
endpoint := &hnsEndpoint{
id: eid,
addr: &net.IPNet{IP: hnsresponse.IPAddress, Mask: hnsresponse.IPAddress.DefaultMask()},
macAddress: mac,
}
endpoint.profileID = hnsresponse.Id
endpoint.config = ec
endpoint.portMapping, err = parsePortBindingPolicies(hnsresponse.Policies)
if err != nil {
hcsshim.HNSEndpointRequest("DELETE", hnsresponse.Id, "")
return err
}
n.Lock()
n.endpoints[eid] = endpoint
n.Unlock()
if ifInfo.Address() == nil {
ifInfo.SetIPAddress(endpoint.addr)
}
if macAddress == nil {
ifInfo.SetMacAddress(endpoint.macAddress)
}
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
if ifInfo == nil {
return errors.New("invalid interface passed")
}
// Get the network handler and make sure it exists
d.Lock()
n, ok := d.networks[nid]
d.Unlock()
if !ok {
return types.NotFoundErrorf("network %s does not exist", nid)
}
if n == nil {
return driverapi.ErrNoNetwork(nid)
}
// Sanity check
n.Lock()
if n.id != nid {
n.Unlock()
return InvalidNetworkIDError(nid)
}
n.Unlock()
// Check if endpoint id is good and retrieve correspondent endpoint
ep, err := n.getEndpoint(eid)
if err != nil {
return err
}
// Endpoint with that id exists either on desired or other sandbox
if ep != nil {
return driverapi.ErrEndpointExists(eid)
}
// Try to convert the options to endpoint configuration
epConfig, err := parseEndpointOptions(epOptions)
if err != nil {
return err
}
// Create and add the endpoint
n.Lock()
endpoint := &bridgeEndpoint{id: eid, config: epConfig}
n.endpoints[eid] = endpoint
n.Unlock()
// On failure make sure to remove the endpoint
defer func() {
if err != nil {
n.Lock()
delete(n.endpoints, eid)
n.Unlock()
}
}()
// Create the sandbox side pipe interface
if ifInfo.MacAddress() == nil {
// No MAC address assigned to interface. Generate a random MAC to assign
endpoint.macAddress = netutils.GenerateRandomMAC()
if err := ifInfo.SetMacAddress(endpoint.macAddress); err != nil {
logrus.Warnf("Unable to set mac address: %s to endpoint: %s",
endpoint.macAddress.String(), endpoint.id)
return err
}
} else {
endpoint.macAddress = ifInfo.MacAddress()
}
endpoint.addr = ifInfo.Address()
endpoint.addrv6 = ifInfo.AddressIPv6()
c := n.config
// Program any required port mapping and store them in the endpoint
endpoint.portMapping, err = n.allocatePorts(endpoint, c.DefaultBindingIntf, c.DefaultBindingIP, true)
if err != nil {
return err
}
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
var (
ipv6Addr *net.IPNet
err error
)
defer osl.InitOSContext()()
if ifInfo == nil {
return errors.New("invalid interface info passed")
}
// Get the network handler and make sure it exists
d.Lock()
n, ok := d.networks[nid]
dconfig := d.config
d.Unlock()
if !ok {
return types.NotFoundErrorf("network %s does not exist", nid)
}
if n == nil {
return driverapi.ErrNoNetwork(nid)
}
// Sanity check
n.Lock()
if n.id != nid {
n.Unlock()
return InvalidNetworkIDError(nid)
}
n.Unlock()
// Check if endpoint id is good and retrieve correspondent endpoint
ep, err := n.getEndpoint(eid)
if err != nil {
return err
}
// Endpoint with that id exists either on desired or other sandbox
if ep != nil {
return driverapi.ErrEndpointExists(eid)
}
// Try to convert the options to endpoint configuration
epConfig, err := parseEndpointOptions(epOptions)
if err != nil {
return err
}
// Create and add the endpoint
n.Lock()
endpoint := &bridgeEndpoint{id: eid, config: epConfig}
n.endpoints[eid] = endpoint
n.Unlock()
// On failure make sure to remove the endpoint
defer func() {
if err != nil {
n.Lock()
delete(n.endpoints, eid)
n.Unlock()
}
}()
// Generate a name for what will be the host side pipe interface
hostIfName, err := netutils.GenerateIfaceName(vethPrefix, vethLen)
if err != nil {
return err
}
// Generate a name for what will be the sandbox side pipe interface
containerIfName, err := netutils.GenerateIfaceName(vethPrefix, vethLen)
if err != nil {
return err
}
// Generate and add the interface pipe host <-> sandbox
veth := &netlink.Veth{
LinkAttrs: netlink.LinkAttrs{Name: hostIfName, TxQLen: 0},
PeerName: containerIfName}
if err = netlink.LinkAdd(veth); err != nil {
return types.InternalErrorf("failed to add the host (%s) <=> sandbox (%s) pair interfaces: %v", hostIfName, containerIfName, err)
}
// Get the host side pipe interface handler
host, err := netlink.LinkByName(hostIfName)
if err != nil {
return types.InternalErrorf("failed to find host side interface %s: %v", hostIfName, err)
}
defer func() {
if err != nil {
netlink.LinkDel(host)
}
}()
// Get the sandbox side pipe interface handler
sbox, err := netlink.LinkByName(containerIfName)
if err != nil {
return types.InternalErrorf("failed to find sandbox side interface %s: %v", containerIfName, err)
}
defer func() {
if err != nil {
netlink.LinkDel(sbox)
}
}()
n.Lock()
config := n.config
n.Unlock()
// Add bridge inherited attributes to pipe interfaces
if config.Mtu != 0 {
err = netlink.LinkSetMTU(host, config.Mtu)
if err != nil {
return types.InternalErrorf("failed to set MTU on host interface %s: %v", hostIfName, err)
}
err = netlink.LinkSetMTU(sbox, config.Mtu)
if err != nil {
return types.InternalErrorf("failed to set MTU on sandbox interface %s: %v", containerIfName, err)
}
}
// Attach host side pipe interface into the bridge
if err = addToBridge(hostIfName, config.BridgeName); err != nil {
return fmt.Errorf("adding interface %s to bridge %s failed: %v", hostIfName, config.BridgeName, err)
}
if !dconfig.EnableUserlandProxy {
err = setHairpinMode(host, true)
if err != nil {
return err
}
}
// v4 address for the sandbox side pipe interface
ip4, err := ipAllocator.RequestIP(n.bridge.bridgeIPv4, nil)
if err != nil {
return err
}
ipv4Addr := &net.IPNet{IP: ip4, Mask: n.bridge.bridgeIPv4.Mask}
// Down the interface before configuring mac address.
if err = netlink.LinkSetDown(sbox); err != nil {
return fmt.Errorf("could not set link down for container interface %s: %v", containerIfName, err)
}
// Set the sbox's MAC. If specified, use the one configured by user, otherwise generate one based on IP.
mac := electMacAddress(epConfig, ip4)
err = netlink.LinkSetHardwareAddr(sbox, mac)
if err != nil {
return fmt.Errorf("could not set mac address for container interface %s: %v", containerIfName, err)
}
endpoint.macAddress = mac
// Up the host interface after finishing all netlink configuration
if err = netlink.LinkSetUp(host); err != nil {
return fmt.Errorf("could not set link up for host interface %s: %v", hostIfName, err)
}
// v6 address for the sandbox side pipe interface
ipv6Addr = &net.IPNet{}
if config.EnableIPv6 {
var ip6 net.IP
network := n.bridge.bridgeIPv6
if config.FixedCIDRv6 != nil {
network = config.FixedCIDRv6
}
ones, _ := network.Mask.Size()
if ones <= 80 {
ip6 = make(net.IP, len(network.IP))
copy(ip6, network.IP)
for i, h := range mac {
ip6[i+10] = h
}
}
ip6, err := ipAllocator.RequestIP(network, ip6)
if err != nil {
return err
}
ipv6Addr = &net.IPNet{IP: ip6, Mask: network.Mask}
}
// Create the sandbox side pipe interface
endpoint.srcName = containerIfName
endpoint.addr = ipv4Addr
if config.EnableIPv6 {
endpoint.addrv6 = ipv6Addr
}
// Program any required port mapping and store them in the endpoint
endpoint.portMapping, err = n.allocatePorts(epConfig, endpoint, config.DefaultBindingIP, d.config.EnableUserlandProxy)
if err != nil {
return err
}
err = ifInfo.SetMacAddress(endpoint.macAddress)
if err != nil {
return err
}
err = ifInfo.SetIPAddress(ipv4Addr)
if err != nil {
return err
}
if config.EnableIPv6 {
err = ifInfo.SetIPAddress(ipv6Addr)
if err != nil {
return err
}
}
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo,
epOptions map[string]interface{}) error {
var err error
if err = validateID(nid, eid); err != nil {
return err
}
// Since we perform lazy configuration make sure we try
// configuring the driver when we enter CreateEndpoint since
// CreateNetwork may not be called in every node.
if err := d.configure(); err != nil {
return err
}
n := d.network(nid)
if n == nil {
return fmt.Errorf("network id %q not found", nid)
}
ep := &endpoint{
id: eid,
nid: n.id,
addr: ifInfo.Address(),
mac: ifInfo.MacAddress(),
}
if ep.addr == nil {
return fmt.Errorf("create endpoint was not passed interface IP address")
}
if s := n.getSubnetforIP(ep.addr); s == nil {
return fmt.Errorf("no matching subnet for IP %q in network %q\n", ep.addr, nid)
}
// Todo: Add port bindings and qos policies here
hnsEndpoint := &hcsshim.HNSEndpoint{
VirtualNetwork: n.hnsId,
IPAddress: ep.addr.IP,
EnableInternalDNS: true,
}
if ep.mac != nil {
hnsEndpoint.MacAddress = ep.mac.String()
}
paPolicy, err := json.Marshal(hcsshim.PaPolicy{
Type: "PA",
PA: n.providerAddress,
})
if err != nil {
return err
}
hnsEndpoint.Policies = append(hnsEndpoint.Policies, paPolicy)
configurationb, err := json.Marshal(hnsEndpoint)
if err != nil {
return err
}
hnsresponse, err := hcsshim.HNSEndpointRequest("POST", "", string(configurationb))
if err != nil {
return err
}
ep.profileId = hnsresponse.Id
if ep.mac == nil {
ep.mac, err = net.ParseMAC(hnsresponse.MacAddress)
if err != nil {
return err
}
if err := ifInfo.SetMacAddress(ep.mac); err != nil {
return err
}
}
n.addEndpoint(ep)
if err := d.writeEndpointToStore(ep); err != nil {
return fmt.Errorf("failed to update overlay endpoint %s to local store: %v", ep.id[0:7], err)
}
return nil
}
func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo, epOptions map[string]interface{}) error {
defer osl.InitOSContext()()
if ifInfo == nil {
return errors.New("invalid interface info passed")
}
// Get the network handler and make sure it exists
d.Lock()
n, ok := d.networks[nid]
dconfig := d.config
d.Unlock()
if !ok {
return types.NotFoundErrorf("network %s does not exist", nid)
}
if n == nil {
return driverapi.ErrNoNetwork(nid)
}
// Sanity check
n.Lock()
if n.id != nid {
n.Unlock()
return InvalidNetworkIDError(nid)
}
n.Unlock()
// Check if endpoint id is good and retrieve correspondent endpoint
ep, err := n.getEndpoint(eid)
if err != nil {
return err
}
// Endpoint with that id exists either on desired or other sandbox
if ep != nil {
return driverapi.ErrEndpointExists(eid)
}
// Try to convert the options to endpoint configuration
epConfig, err := parseEndpointOptions(epOptions)
if err != nil {
return err
}
// Create and add the endpoint
n.Lock()
endpoint := &bridgeEndpoint{id: eid, config: epConfig}
n.endpoints[eid] = endpoint
n.Unlock()
// On failure make sure to remove the endpoint
defer func() {
if err != nil {
n.Lock()
delete(n.endpoints, eid)
n.Unlock()
}
}()
// Generate a name for what will be the host side pipe interface
hostIfName, err := netutils.GenerateIfaceName(vethPrefix, vethLen)
if err != nil {
return err
}
// Generate a name for what will be the sandbox side pipe interface
containerIfName, err := netutils.GenerateIfaceName(vethPrefix, vethLen)
if err != nil {
return err
}
// Generate and add the interface pipe host <-> sandbox
veth := &netlink.Veth{
LinkAttrs: netlink.LinkAttrs{Name: hostIfName, TxQLen: 0},
PeerName: containerIfName}
if err = netlink.LinkAdd(veth); err != nil {
return types.InternalErrorf("failed to add the host (%s) <=> sandbox (%s) pair interfaces: %v", hostIfName, containerIfName, err)
}
// Get the host side pipe interface handler
host, err := netlink.LinkByName(hostIfName)
if err != nil {
return types.InternalErrorf("failed to find host side interface %s: %v", hostIfName, err)
}
defer func() {
if err != nil {
netlink.LinkDel(host)
}
}()
// Get the sandbox side pipe interface handler
sbox, err := netlink.LinkByName(containerIfName)
if err != nil {
return types.InternalErrorf("failed to find sandbox side interface %s: %v", containerIfName, err)
}
defer func() {
if err != nil {
netlink.LinkDel(sbox)
}
}()
n.Lock()
config := n.config
n.Unlock()
// Add bridge inherited attributes to pipe interfaces
if config.Mtu != 0 {
err = netlink.LinkSetMTU(host, config.Mtu)
if err != nil {
return types.InternalErrorf("failed to set MTU on host interface %s: %v", hostIfName, err)
}
err = netlink.LinkSetMTU(sbox, config.Mtu)
if err != nil {
return types.InternalErrorf("failed to set MTU on sandbox interface %s: %v", containerIfName, err)
}
}
// Attach host side pipe interface into the bridge
if err = addToBridge(hostIfName, config.BridgeName); err != nil {
return fmt.Errorf("adding interface %s to bridge %s failed: %v", hostIfName, config.BridgeName, err)
}
if !dconfig.EnableUserlandProxy {
err = setHairpinMode(host, true)
if err != nil {
return err
}
}
// Create the sandbox side pipe interface
endpoint.srcName = containerIfName
endpoint.macAddress = ifInfo.MacAddress()
endpoint.addr = ifInfo.Address()
endpoint.addrv6 = ifInfo.AddressIPv6()
// Down the interface before configuring mac address.
if err = netlink.LinkSetDown(sbox); err != nil {
return fmt.Errorf("could not set link down for container interface %s: %v", containerIfName, err)
}
// Set the sbox's MAC. If specified, use the one configured by user, otherwise generate one based on IP.
if endpoint.macAddress == nil {
endpoint.macAddress = electMacAddress(epConfig, endpoint.addr.IP)
if err := ifInfo.SetMacAddress(endpoint.macAddress); err != nil {
return err
}
}
err = netlink.LinkSetHardwareAddr(sbox, endpoint.macAddress)
if err != nil {
return fmt.Errorf("could not set mac address for container interface %s: %v", containerIfName, err)
}
// Up the host interface after finishing all netlink configuration
if err = netlink.LinkSetUp(host); err != nil {
return fmt.Errorf("could not set link up for host interface %s: %v", hostIfName, err)
}
if endpoint.addrv6 == nil && config.EnableIPv6 {
var ip6 net.IP
network := n.bridge.bridgeIPv6
if config.AddressIPv6 != nil {
network = config.AddressIPv6
}
ones, _ := network.Mask.Size()
if ones > 80 {
err = types.ForbiddenErrorf("Cannot self generate an IPv6 address on network %v: At least 48 host bits are needed.", network)
return err
}
ip6 = make(net.IP, len(network.IP))
copy(ip6, network.IP)
for i, h := range endpoint.macAddress {
ip6[i+10] = h
}
endpoint.addrv6 = &net.IPNet{IP: ip6, Mask: network.Mask}
if err := ifInfo.SetIPAddress(endpoint.addrv6); err != nil {
return err
}
}
// Add a neighbor proxy if using NDP proxying
if config.NDPProxyInterface != "" && config.EnableIPv6 {
link, err := netlink.LinkByName(config.NDPProxyInterface)
if err != nil {
return err
}
neighbor := netlink.Neigh{
LinkIndex: link.Attrs().Index,
Family: netlink.FAMILY_V6,
State: netlink.NUD_PERMANENT,
Type: netlink.NDA_UNSPEC,
Flags: netlink.NTF_PROXY,
IP: endpoint.addrv6.IP,
HardwareAddr: endpoint.macAddress,
}
if err := netlink.NeighAdd(&neighbor); err != nil {
logrus.Warnf("could not add the neighbor proxy: %v", err)
return err
}
if endpoint.config != nil {
for _, port := range endpoint.config.ExposedPorts {
insert := []string{
string(iptables.Insert),
DockerChain,
"-p", port.Proto.String(),
"-d", endpoint.addrv6.String(),
"--dport", strconv.Itoa(int(port.Port)),
"-j", "ACCEPT",
}
iptables.Raw(iptables.IP6Tables, insert...)
}
}
}
// Program any required port mapping and store them in the endpoint
endpoint.portMapping, err = n.allocatePorts(epConfig, endpoint, config.DefaultBindingIP, d.config.EnableUserlandProxy)
if err != nil {
return err
}
return nil
}