Update libnetwork to latest version

Signed-off-by: Tom Denham <tom@tomdee.co.uk>

vendor.conf

@@ -23,7 +23,7 @@ github.com/RackSec/srslog 365bf33cd9acc21ae1c355209865f17228ca534e
 github.com/imdario/mergo 0.2.1
 
 #get libnetwork packages
-github.com/docker/libnetwork 57be722e077059d1ee0539be31743a3642ccbeb3
+github.com/docker/libnetwork f36e733a08cd8239a2db296994cb6613fef1cece 
 github.com/docker/go-events 18b43f1bc85d9cdd42c05a6cd2d444c7a200a894
 github.com/armon/go-radix e39d623f12e8e41c7b5529e9a9dd67a1e2261f80
 github.com/armon/go-metrics eb0af217e5e9747e41dd5303755356b62d28e3ec

vendor/github.com/docker/libnetwork/agent.go

@@ -381,7 +381,57 @@ func (n *network) leaveCluster() error {
 	return c.agent.networkDB.LeaveNetwork(n.ID())
 }
 
-func (ep *endpoint) addToCluster() error {
+func (ep *endpoint) addDriverInfoToCluster() error {
+	n := ep.getNetwork()
+	if !n.isClusterEligible() {
+		return nil
+	}
+	if ep.joinInfo == nil {
+		return nil
+	}
+
+	ctrlr := n.ctrlr
+	ctrlr.Lock()
+	agent := ctrlr.agent
+	ctrlr.Unlock()
+	if agent == nil {
+		return nil
+	}
+
+	for _, te := range ep.joinInfo.driverTableEntries {
+		if err := agent.networkDB.CreateEntry(te.tableName, n.ID(), te.key, te.value); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (ep *endpoint) deleteDriverInfoFromCluster() error {
+	n := ep.getNetwork()
+	if !n.isClusterEligible() {
+		return nil
+	}
+	if ep.joinInfo == nil {
+		return nil
+	}
+
+	ctrlr := n.ctrlr
+	ctrlr.Lock()
+	agent := ctrlr.agent
+	ctrlr.Unlock()
+	if agent == nil {
+		return nil
+	}
+
+	for _, te := range ep.joinInfo.driverTableEntries {
+		if err := agent.networkDB.DeleteEntry(te.tableName, n.ID(), te.key); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (ep *endpoint) addServiceInfoToCluster() error {
 	n := ep.getNetwork()
 	if !n.isClusterEligible() {
 		return nil
@@ -421,16 +471,10 @@ func (ep *endpoint) addToCluster() error {
 		}
 	}
 
-	for _, te := range ep.joinInfo.driverTableEntries {
-		if err := c.agent.networkDB.CreateEntry(te.tableName, n.ID(), te.key, te.value); err != nil {
-			return err
-		}
-	}
-
 	return nil
 }
 
-func (ep *endpoint) deleteFromCluster() error {
+func (ep *endpoint) deleteServiceInfoFromCluster() error {
 	n := ep.getNetwork()
 	if !n.isClusterEligible() {
 		return nil
@@ -453,17 +497,6 @@ func (ep *endpoint) deleteFromCluster() error {
 			return err
 		}
 	}
-
-	if ep.joinInfo == nil {
-		return nil
-	}
-
-	for _, te := range ep.joinInfo.driverTableEntries {
-		if err := c.agent.networkDB.DeleteEntry(te.tableName, n.ID(), te.key); err != nil {
-			return err
-		}
-	}
-
 	return nil
 }
 

vendor/github.com/docker/libnetwork/config/config.go

@@ -17,11 +17,11 @@ import (
 	"github.com/docker/libnetwork/osl"
 )
 
-// RestrictedNameChars collects the characters allowed to represent a network or endpoint name.
+// restrictedNameRegex represents the regular expression which regulates the allowed network or endpoint names.
-const restrictedNameChars = `[a-zA-Z0-9][a-zA-Z0-9_.-]`
+const restrictedNameRegex = `^[\w]+[\w-. ]*[\w]+$`
 
 // RestrictedNamePattern is a regular expression to validate names against the collection of restricted characters.
-var restrictedNamePattern = regexp.MustCompile(`^/?` + restrictedNameChars + `+$`)
+var restrictedNamePattern = regexp.MustCompile(restrictedNameRegex)
 
 // Config encapsulates configurations of various Libnetwork components
 type Config struct {
@@ -234,7 +234,7 @@ func (c *Config) ProcessOptions(options ...Option) {
 // ValidateName validates configuration objects supported by libnetwork
 func ValidateName(name string) error {
 	if !restrictedNamePattern.MatchString(name) {
-		return fmt.Errorf("%s includes invalid characters, only %q are allowed", name, restrictedNameChars)
+		return fmt.Errorf("%q includes invalid characters, resource name has to conform to %q", name, restrictedNameRegex)
 	}
 	return nil
 }

vendor/github.com/docker/libnetwork/drivers/overlay/ov_endpoint.go

@@ -77,7 +77,7 @@ func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo,
 	}
 
 	if s := n.getSubnetforIP(ep.addr); s == nil {
-		return fmt.Errorf("no matching subnet for IP %q in network %q\n", ep.addr, nid)
+		return fmt.Errorf("no matching subnet for IP %q in network %q", ep.addr, nid)
 	}
 
 	if ep.mac == nil {

vendor/github.com/docker/libnetwork/drivers/overlay/ov_network.go

@@ -320,6 +320,11 @@ func populateVNITbl() {
 			}
 			defer nlh.Delete()
 
+			err = nlh.SetSocketTimeout(soTimeout)
+			if err != nil {
+				logrus.Warnf("Failed to set the timeout on the netlink handle sockets for vni table population: %v", err)
+			}
+
 			links, err := nlh.LinkList()
 			if err != nil {
 				logrus.Errorf("Failed to list interfaces during vni population for ns %s: %v", path, err)

vendor/github.com/docker/libnetwork/drivers/overlay/ov_utils.go

@@ -13,6 +13,8 @@ import (
 	"github.com/vishvananda/netns"
 )
 
+var soTimeout = ns.NetlinkSocketsTimeout
+
 func validateID(nid, eid string) error {
 	if nid == "" {
 		return fmt.Errorf("invalid network id")
@@ -134,6 +136,10 @@ func deleteVxlanByVNI(path string, vni uint32) error {
 			return fmt.Errorf("failed to get netlink handle for ns %s: %v", path, err)
 		}
 		defer nlh.Delete()
+		err = nlh.SetSocketTimeout(soTimeout)
+		if err != nil {
+			logrus.Warnf("Failed to set the timeout on the netlink handle sockets for vxlan deletion: %v", err)
+		}
 	}
 
 	links, err := nlh.LinkList()

vendor/github.com/docker/libnetwork/drivers/overlay/peerdb.go

@@ -277,7 +277,7 @@ func (d *driver) peerAdd(nid, eid string, peerIP net.IP, peerIPMask net.IPMask,
 
 	s := n.getSubnetforIP(IP)
 	if s == nil {
-		return fmt.Errorf("couldn't find the subnet %q in network %q\n", IP.String(), n.id)
+		return fmt.Errorf("couldn't find the subnet %q in network %q", IP.String(), n.id)
 	}
 
 	if err := n.obtainVxlanID(s); err != nil {

vendor/github.com/docker/libnetwork/drivers/solaris/overlay/ov_endpoint.go

@@ -76,7 +76,7 @@ func (d *driver) CreateEndpoint(nid, eid string, ifInfo driverapi.InterfaceInfo,
 	}
 
 	if s := n.getSubnetforIP(ep.addr); s == nil {
-		return fmt.Errorf("no matching subnet for IP %q in network %q\n", ep.addr, nid)
+		return fmt.Errorf("no matching subnet for IP %q in network %q", ep.addr, nid)
 	}
 
 	if ep.mac == nil {

vendor/github.com/docker/libnetwork/drivers/solaris/overlay/peerdb.go

@@ -263,7 +263,7 @@ func (d *driver) peerAdd(nid, eid string, peerIP net.IP, peerIPMask net.IPMask,
 
 	s := n.getSubnetforIP(IP)
 	if s == nil {
-		return fmt.Errorf("couldn't find the subnet %q in network %q\n", IP.String(), n.id)
+		return fmt.Errorf("couldn't find the subnet %q in network %q", IP.String(), n.id)
 	}
 
 	if err := n.obtainVxlanID(s); err != nil {

vendor/github.com/docker/libnetwork/endpoint.go

@@ -515,6 +515,10 @@ func (ep *endpoint) sbJoin(sb *sandbox, options ...EndpointOption) error {
 		return err
 	}
 
+	if err = ep.addDriverInfoToCluster(); err != nil {
+		return err
+	}
+
 	if sb.needDefaultGW() && sb.getEndpointInGWNetwork() == nil {
 		return sb.setupDefaultGW()
 	}
@@ -709,8 +713,12 @@ func (ep *endpoint) sbLeave(sb *sandbox, force bool, options ...EndpointOption)
 		return err
 	}
 
-	if e := ep.deleteFromCluster(); e != nil {
+	if e := ep.deleteServiceInfoFromCluster(); e != nil {
-		logrus.Errorf("Could not delete state for endpoint %s from cluster: %v", ep.Name(), e)
+		logrus.Errorf("Could not delete service state for endpoint %s from cluster: %v", ep.Name(), e)
+	}
+
+	if e := ep.deleteDriverInfoFromCluster(); e != nil {
+		logrus.Errorf("Could not delete endpoint state for endpoint %s from cluster: %v", ep.Name(), e)
 	}
 
 	sb.deleteHostsEntries(n.getSvcRecords(ep))

vendor/github.com/docker/libnetwork/ipam/allocator.go

@@ -413,7 +413,7 @@ func (a *Allocator) getPredefinedPool(as string, ipV6 bool) (*net.IPNet, error)
 		}
 	}
 
-	return nil, types.NotFoundErrorf("could not find an available non-overlapping address pool among the defaults to auto assign to the network")
+	return nil, types.NotFoundErrorf("could not find an available, non-overlapping IPv%d address pool among the defaults to assign to the network", v)
 }
 
 // RequestAddress returns an address from the specified pool ID

vendor/github.com/docker/libnetwork/iptables/iptables.go

@@ -130,7 +130,7 @@ func NewChain(name string, table Table, hairpinMode bool) (*ChainInfo, error) {
 // ProgramChain is used to add rules to a chain
 func ProgramChain(c *ChainInfo, bridgeName string, hairpinMode, enable bool) error {
 	if c.Name == "" {
-		return fmt.Errorf("Could not program chain, missing chain name.")
+		return fmt.Errorf("Could not program chain, missing chain name")
 	}
 
 	switch c.Table {
@@ -166,7 +166,7 @@ func ProgramChain(c *ChainInfo, bridgeName string, hairpinMode, enable bool) err
 		}
 	case Filter:
 		if bridgeName == "" {
-			return fmt.Errorf("Could not program chain %s/%s, missing bridge name.",
+			return fmt.Errorf("Could not program chain %s/%s, missing bridge name",
 				c.Table, c.Name)
 		}
 		link := []string{

vendor/github.com/docker/libnetwork/network.go

@@ -65,6 +65,7 @@ type NetworkInfo interface {
 	Scope() string
 	IPv6Enabled() bool
 	Internal() bool
+	Attachable() bool
 	Labels() map[string]string
 	Dynamic() bool
 	Created() time.Time
@@ -196,6 +197,7 @@ type network struct {
 	resolverOnce sync.Once
 	resolver     []Resolver
 	internal     bool
+	attachable   bool
 	inDelete     bool
 	ingress      bool
 	driverTables []string
@@ -348,6 +350,7 @@ func (n *network) CopyTo(o datastore.KVObject) error {
 	dstN.dbExists = n.dbExists
 	dstN.drvOnce = n.drvOnce
 	dstN.internal = n.internal
+	dstN.attachable = n.attachable
 	dstN.inDelete = n.inDelete
 	dstN.ingress = n.ingress
 
@@ -456,6 +459,7 @@ func (n *network) MarshalJSON() ([]byte, error) {
 		netMap["ipamV6Info"] = string(iis)
 	}
 	netMap["internal"] = n.internal
+	netMap["attachable"] = n.attachable
 	netMap["inDelete"] = n.inDelete
 	netMap["ingress"] = n.ingress
 	return json.Marshal(netMap)
@@ -550,6 +554,9 @@ func (n *network) UnmarshalJSON(b []byte) (err error) {
 	if v, ok := netMap["internal"]; ok {
 		n.internal = v.(bool)
 	}
+	if v, ok := netMap["attachable"]; ok {
+		n.attachable = v.(bool)
+	}
 	if s, ok := netMap["scope"]; ok {
 		n.scope = s.(string)
 	}
@@ -628,6 +635,13 @@ func NetworkOptionInternalNetwork() NetworkOption {
 	}
 }
 
+// NetworkOptionAttachable returns an option setter to set attachable for a network
+func NetworkOptionAttachable(attachable bool) NetworkOption {
+	return func(n *network) {
+		n.attachable = attachable
+	}
+}
+
 // NetworkOptionIpam function returns an option setter for the ipam configuration for this network
 func NetworkOptionIpam(ipamDriver string, addrSpace string, ipV4 []*IpamConf, ipV6 []*IpamConf, opts map[string]string) NetworkOption {
 	return func(n *network) {
@@ -1289,9 +1303,6 @@ func (n *network) ipamAllocateVersion(ipVer int, ipam ipamapi.Ipam) error {
 	}
 
 	if len(*cfgList) == 0 {
-		if ipVer == 6 {
-			return nil
-		}
 		*cfgList = []*IpamConf{{}}
 	}
 
@@ -1555,6 +1566,13 @@ func (n *network) Internal() bool {
 	return n.internal
 }
 
+func (n *network) Attachable() bool {
+	n.Lock()
+	defer n.Unlock()
+
+	return n.attachable
+}
+
 func (n *network) Dynamic() bool {
 	n.Lock()
 	defer n.Unlock()

vendor/github.com/docker/libnetwork/networkdb/networkdb.go

@@ -265,7 +265,7 @@ func (nDB *NetworkDB) CreateEntry(tname, nid, key string, value []byte) error {
 	}
 
 	if err := nDB.sendTableEvent(TableEventTypeCreate, nid, tname, key, entry); err != nil {
-		return fmt.Errorf("cannot send table create event: %v", err)
+		return fmt.Errorf("cannot send create event for table %s, %v", tname, err)
 	}
 
 	nDB.Lock()

vendor/github.com/docker/libnetwork/ns/init_linux.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 	"sync"
 	"syscall"
+	"time"
 
 	"github.com/Sirupsen/logrus"
 	"github.com/vishvananda/netlink"
@@ -17,6 +18,8 @@ var (
 	initNs   netns.NsHandle
 	initNl   *netlink.Handle
 	initOnce sync.Once
+	// NetlinkSocketsTimeout represents the default timeout duration for the sockets
+	NetlinkSocketsTimeout = 3 * time.Second
 )
 
 // Init initializes a new network namespace
@@ -30,6 +33,10 @@ func Init() {
 	if err != nil {
 		logrus.Errorf("could not create netlink handle on initial namespace: %v", err)
 	}
+	err = initNl.SetSocketTimeout(NetlinkSocketsTimeout)
+	if err != nil {
+		logrus.Warnf("Failed to set the timeout on the default netlink handle sockets: %v", err)
+	}
 }
 
 // SetNamespace sets the initial namespace handler

vendor/github.com/docker/libnetwork/osl/namespace_linux.go

@@ -211,6 +211,11 @@ func NewSandbox(key string, osCreate, isRestore bool) (Sandbox, error) {
 		return nil, fmt.Errorf("failed to create a netlink handle: %v", err)
 	}
 
+	err = n.nlHandle.SetSocketTimeout(ns.NetlinkSocketsTimeout)
+	if err != nil {
+		logrus.Warnf("Failed to set the timeout on the sandbox netlink handle sockets: %v", err)
+	}
+
 	if err = n.loopbackUp(); err != nil {
 		n.nlHandle.Delete()
 		return nil, err
@@ -253,6 +258,11 @@ func GetSandboxForExternalKey(basePath string, key string) (Sandbox, error) {
 		return nil, fmt.Errorf("failed to create a netlink handle: %v", err)
 	}
 
+	err = n.nlHandle.SetSocketTimeout(ns.NetlinkSocketsTimeout)
+	if err != nil {
+		logrus.Warnf("Failed to set the timeout on the sandbox netlink handle sockets: %v", err)
+	}
+
 	if err = n.loopbackUp(); err != nil {
 		n.nlHandle.Delete()
 		return nil, err

vendor/github.com/docker/libnetwork/osl/neigh_linux.go

@@ -80,6 +80,7 @@ func (n *networkNamespace) DeleteNeighbor(dstIP net.IP, dstMac net.HardwareAddr,
 	for i, nh := range n.neighbors {
 		if nh.dstIP.Equal(dstIP) && bytes.Equal(nh.dstMac, dstMac) {
 			n.neighbors = append(n.neighbors[:i], n.neighbors[i+1:]...)
+			break
 		}
 	}
 	n.Unlock()

vendor/github.com/docker/libnetwork/sandbox.go

@@ -427,7 +427,13 @@ func (sb *sandbox) ResolveIP(ip string) string {
 }
 
 func (sb *sandbox) ExecFunc(f func()) error {
-	return sb.osSbox.InvokeFunc(f)
+	sb.Lock()
+	osSbox := sb.osSbox
+	sb.Unlock()
+	if osSbox != nil {
+		return osSbox.InvokeFunc(f)
+	}
+	return fmt.Errorf("osl sandbox unavailable in ExecFunc for %v", sb.ContainerID())
 }
 
 func (sb *sandbox) ResolveService(name string) ([]*net.SRV, []net.IP) {
@@ -664,7 +670,7 @@ func (sb *sandbox) SetKey(basePath string) error {
 func (sb *sandbox) EnableService() error {
 	for _, ep := range sb.getConnectedEndpoints() {
 		if ep.enableService(true) {
-			if err := ep.addToCluster(); err != nil {
+			if err := ep.addServiceInfoToCluster(); err != nil {
 				ep.enableService(false)
 				return fmt.Errorf("could not update state for endpoint %s into cluster: %v", ep.Name(), err)
 			}
@@ -676,7 +682,7 @@ func (sb *sandbox) EnableService() error {
 func (sb *sandbox) DisableService() error {
 	for _, ep := range sb.getConnectedEndpoints() {
 		if ep.enableService(false) {
-			if err := ep.deleteFromCluster(); err != nil {
+			if err := ep.deleteServiceInfoFromCluster(); err != nil {
 				ep.enableService(true)
 				return fmt.Errorf("could not delete state for endpoint %s from cluster: %v", ep.Name(), err)
 			}