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netlink/link_test.go

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//go:build linux
// +build linux
package netlink
import (
"bytes"
"errors"
"fmt"
"net"
"os"
"os/exec"
"sort"
"strings"
"syscall"
"testing"
"time"
"github.com/vishvananda/netlink/nl"
"github.com/vishvananda/netns"
"golang.org/x/sys/unix"
)
const (
testTxQLen int = 100
defaultTxQLen int = 1000
testTxQueues int = 4
testRxQueues int = 8
)
func testLinkAddDel(t *testing.T, link Link) {
_, err := LinkList()
if err != nil {
t.Fatal(err)
}
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
base := link.Attrs()
result, err := LinkByName(base.Name)
if err != nil {
t.Fatal(err)
}
rBase := result.Attrs()
if base.Index != 0 {
if base.Index != rBase.Index {
t.Fatalf("index is %d, should be %d", rBase.Index, base.Index)
}
}
if base.Group > 0 {
if base.Group != rBase.Group {
t.Fatalf("group is %d, should be %d", rBase.Group, base.Group)
}
}
if vlan, ok := link.(*Vlan); ok {
other, ok := result.(*Vlan)
if !ok {
t.Fatal("Result of create is not a vlan")
}
if vlan.VlanId != other.VlanId {
t.Fatal("Link.VlanId id doesn't match")
}
}
if resultPrimary, ok := result.(*Netkit); ok {
if inputPrimary, ok := link.(*Netkit); ok {
if resultPrimary.Policy != inputPrimary.Policy {
t.Fatalf("Policy is %d, should be %d", int(resultPrimary.Policy), int(inputPrimary.Policy))
}
if resultPrimary.PeerPolicy != inputPrimary.PeerPolicy {
t.Fatalf("Peer Policy is %d, should be %d", int(resultPrimary.PeerPolicy), int(inputPrimary.PeerPolicy))
}
if resultPrimary.Mode != inputPrimary.Mode {
t.Fatalf("Mode is %d, should be %d", int(resultPrimary.Mode), int(inputPrimary.Mode))
}
if resultPrimary.SupportsScrub() && resultPrimary.Scrub != inputPrimary.Scrub {
t.Fatalf("Scrub is %d, should be %d", int(resultPrimary.Scrub), int(inputPrimary.Scrub))
}
if resultPrimary.SupportsScrub() && resultPrimary.PeerScrub != inputPrimary.PeerScrub {
t.Fatalf("Peer Scrub is %d, should be %d", int(resultPrimary.PeerScrub), int(inputPrimary.PeerScrub))
}
if inputPrimary.peerLinkAttrs.Name != "" {
var resultPeer *Netkit
pLink, err := LinkByName(inputPrimary.peerLinkAttrs.Name)
if err != nil {
t.Fatalf("Failed to get Peer netkit %s", inputPrimary.peerLinkAttrs.Name)
}
if resultPeer, ok = pLink.(*Netkit); !ok {
t.Fatalf("Peer %s is incorrect type", inputPrimary.peerLinkAttrs.Name)
}
if resultPrimary.PeerPolicy != resultPeer.Policy {
t.Fatalf("Peer Policy from primary is %d, should be %d", int(resultPrimary.PeerPolicy), int(resultPeer.Policy))
}
if resultPeer.PeerPolicy != resultPrimary.Policy {
t.Fatalf("PeerPolicy from peer is %d, should be %d", int(resultPeer.PeerPolicy), int(resultPrimary.Policy))
}
if resultPrimary.Mode != resultPeer.Mode {
t.Fatalf("Peer Mode from primary is %d, should be %d", int(resultPrimary.Mode), int(resultPeer.Mode))
}
if resultPrimary.IsPrimary() == resultPeer.IsPrimary() {
t.Fatalf("Both primary and peer device has the same value in IsPrimary() %t", resultPrimary.IsPrimary())
}
if resultPrimary.SupportsScrub() != resultPeer.SupportsScrub() {
t.Fatalf("Peer SupportsScrub() should return %v", resultPrimary.SupportsScrub())
}
if resultPrimary.PeerScrub != resultPeer.Scrub {
t.Fatalf("Scrub from peer is %d, should be %d", int(resultPeer.Scrub), int(resultPrimary.PeerScrub))
}
if resultPrimary.Scrub != resultPeer.PeerScrub {
t.Fatalf("PeerScrub from peer is %d, should be %d", int(resultPeer.PeerScrub), int(resultPrimary.Scrub))
}
}
}
}
if veth, ok := result.(*Veth); ok {
if rBase.TxQLen != base.TxQLen {
t.Fatalf("qlen is %d, should be %d", rBase.TxQLen, base.TxQLen)
}
if rBase.NumTxQueues != base.NumTxQueues {
t.Fatalf("txQueues is %d, should be %d", rBase.NumTxQueues, base.NumTxQueues)
}
if rBase.NumRxQueues != base.NumRxQueues {
t.Fatalf("rxQueues is %d, should be %d", rBase.NumRxQueues, base.NumRxQueues)
}
if rBase.MTU != base.MTU {
t.Fatalf("MTU is %d, should be %d", rBase.MTU, base.MTU)
}
if original, ok := link.(*Veth); ok {
if original.PeerName != "" {
var peer *Veth
other, err := LinkByName(original.PeerName)
if err != nil {
t.Fatalf("Peer %s not created", veth.PeerName)
}
if peer, ok = other.(*Veth); !ok {
t.Fatalf("Peer %s is incorrect type", veth.PeerName)
}
if peer.TxQLen != testTxQLen {
t.Fatalf("TxQLen of peer is %d, should be %d", peer.TxQLen, testTxQLen)
}
if peer.NumTxQueues != testTxQueues {
t.Fatalf("NumTxQueues of peer is %d, should be %d", peer.NumTxQueues, testTxQueues)
}
if peer.NumRxQueues != testRxQueues {
t.Fatalf("NumRxQueues of peer is %d, should be %d", peer.NumRxQueues, testRxQueues)
}
if !bytes.Equal(peer.Attrs().HardwareAddr, original.PeerHardwareAddr) {
t.Fatalf("Peer MAC addr is %s, should be %s", peer.Attrs().HardwareAddr, original.PeerHardwareAddr)
}
}
}
}
if _, ok := result.(*Veth); !ok {
if _, ok := result.(*Netkit); !ok {
// recent kernels set the parent index for veths/netkit in the response
if rBase.ParentIndex == 0 && base.ParentIndex != 0 {
t.Fatalf("Created link doesn't have parent %d but it should", base.ParentIndex)
} else if rBase.ParentIndex != 0 && base.ParentIndex == 0 {
t.Fatalf("Created link has parent %d but it shouldn't", rBase.ParentIndex)
} else if rBase.ParentIndex != 0 && base.ParentIndex != 0 {
if rBase.ParentIndex != base.ParentIndex {
t.Fatalf("Link.ParentIndex doesn't match %d != %d", rBase.ParentIndex, base.ParentIndex)
}
}
}
}
if _, ok := link.(*Wireguard); ok {
_, ok := result.(*Wireguard)
if !ok {
t.Fatal("Result of create is not a wireguard")
}
}
if vxlan, ok := link.(*Vxlan); ok {
other, ok := result.(*Vxlan)
if !ok {
t.Fatal("Result of create is not a vxlan")
}
compareVxlan(t, vxlan, other)
}
if ipv, ok := link.(*IPVlan); ok {
other, ok := result.(*IPVlan)
if !ok {
t.Fatal("Result of create is not a ipvlan")
}
if ipv.Mode != other.Mode {
t.Fatalf("Got unexpected mode: %d, expected: %d", other.Mode, ipv.Mode)
}
if ipv.Flag != other.Flag {
t.Fatalf("Got unexpected flag: %d, expected: %d", other.Flag, ipv.Flag)
}
}
if macv, ok := link.(*Macvlan); ok {
other, ok := result.(*Macvlan)
if !ok {
t.Fatal("Result of create is not a macvlan")
}
if macv.Mode != other.Mode {
t.Fatalf("Got unexpected mode: %d, expected: %d", other.Mode, macv.Mode)
}
if other.BCQueueLen > 0 || other.UsedBCQueueLen > 0 {
if other.UsedBCQueueLen < other.BCQueueLen {
t.Fatalf("UsedBCQueueLen (%d) is smaller than BCQueueLen (%d)", other.UsedBCQueueLen, other.BCQueueLen)
}
}
if macv.BCQueueLen > 0 {
if macv.BCQueueLen != other.BCQueueLen {
t.Fatalf("BCQueueLen not set correctly: %d, expected: %d", other.BCQueueLen, macv.BCQueueLen)
}
}
}
if macv, ok := link.(*Macvtap); ok {
other, ok := result.(*Macvtap)
if !ok {
t.Fatal("Result of create is not a macvtap")
}
if macv.Mode != other.Mode {
t.Fatalf("Got unexpected mode: %d, expected: %d", other.Mode, macv.Mode)
}
if other.BCQueueLen > 0 || other.UsedBCQueueLen > 0 {
if other.UsedBCQueueLen < other.BCQueueLen {
t.Fatalf("UsedBCQueueLen (%d) is smaller than BCQueueLen (%d)", other.UsedBCQueueLen, other.BCQueueLen)
}
}
if macv.BCQueueLen > 0 {
if macv.BCQueueLen != other.BCQueueLen {
t.Fatalf("BCQueueLen not set correctly: %d, expected: %d", other.BCQueueLen, macv.BCQueueLen)
}
}
}
if _, ok := link.(*Vti); ok {
_, ok := result.(*Vti)
if !ok {
t.Fatal("Result of create is not a vti")
}
}
if bond, ok := link.(*Bond); ok {
other, ok := result.(*Bond)
if !ok {
t.Fatal("Result of create is not a bond")
}
if bond.Mode != other.Mode {
t.Fatalf("Got unexpected mode: %d, expected: %d", other.Mode, bond.Mode)
}
if bond.ArpIpTargets != nil {
if other.ArpIpTargets == nil {
t.Fatalf("Got unexpected ArpIpTargets: nil")
}
if len(bond.ArpIpTargets) != len(other.ArpIpTargets) {
t.Fatalf("Got unexpected ArpIpTargets len: %d, expected: %d",
len(other.ArpIpTargets), len(bond.ArpIpTargets))
}
for i := range bond.ArpIpTargets {
if !bond.ArpIpTargets[i].Equal(other.ArpIpTargets[i]) {
t.Fatalf("Got unexpected ArpIpTargets: %s, expected: %s",
other.ArpIpTargets[i], bond.ArpIpTargets[i])
}
}
}
switch mode := bondModeToString[bond.Mode]; mode {
case "802.3ad":
if bond.AdSelect != other.AdSelect {
t.Fatalf("Got unexpected AdSelect: %d, expected: %d", other.AdSelect, bond.AdSelect)
}
if bond.AdActorSysPrio != other.AdActorSysPrio {
t.Fatalf("Got unexpected AdActorSysPrio: %d, expected: %d", other.AdActorSysPrio, bond.AdActorSysPrio)
}
if bond.AdUserPortKey != other.AdUserPortKey {
t.Fatalf("Got unexpected AdUserPortKey: %d, expected: %d", other.AdUserPortKey, bond.AdUserPortKey)
}
if !bytes.Equal(bond.AdActorSystem, other.AdActorSystem) {
t.Fatalf("Got unexpected AdActorSystem: %d, expected: %d", other.AdActorSystem, bond.AdActorSystem)
}
case "balance-tlb":
if bond.TlbDynamicLb != other.TlbDynamicLb {
t.Fatalf("Got unexpected TlbDynamicLb: %d, expected: %d", other.TlbDynamicLb, bond.TlbDynamicLb)
}
}
}
if iptun, ok := link.(*Iptun); ok {
other, ok := result.(*Iptun)
if !ok {
t.Fatal("Result of create is not a iptun")
}
if iptun.FlowBased != other.FlowBased {
t.Fatal("Iptun.FlowBased doesn't match")
}
}
if ip6tnl, ok := link.(*Ip6tnl); ok {
other, ok := result.(*Ip6tnl)
if !ok {
t.Fatal("Result of create is not a ip6tnl")
}
if ip6tnl.FlowBased != other.FlowBased {
t.Fatal("Ip6tnl.FlowBased doesn't match")
}
}
if _, ok := link.(*Sittun); ok {
_, ok := result.(*Sittun)
if !ok {
t.Fatal("Result of create is not a sittun")
}
}
if geneve, ok := link.(*Geneve); ok {
other, ok := result.(*Geneve)
if !ok {
t.Fatal("Result of create is not a Geneve")
}
compareGeneve(t, geneve, other)
}
if gretap, ok := link.(*Gretap); ok {
other, ok := result.(*Gretap)
if !ok {
t.Fatal("Result of create is not a Gretap")
}
compareGretap(t, gretap, other)
}
if gretun, ok := link.(*Gretun); ok {
other, ok := result.(*Gretun)
if !ok {
t.Fatal("Result of create is not a Gretun")
}
compareGretun(t, gretun, other)
}
if xfrmi, ok := link.(*Xfrmi); ok {
other, ok := result.(*Xfrmi)
if !ok {
t.Fatal("Result of create is not a xfrmi")
}
compareXfrmi(t, xfrmi, other)
}
if tuntap, ok := link.(*Tuntap); ok {
other, ok := result.(*Tuntap)
if !ok {
t.Fatal("Result of create is not a tuntap")
}
compareTuntap(t, tuntap, other)
}
if bareudp, ok := link.(*BareUDP); ok {
other, ok := result.(*BareUDP)
if !ok {
t.Fatal("Result of create is not a BareUDP")
}
compareBareUDP(t, bareudp, other)
}
if err = LinkDel(link); err != nil {
t.Fatal(err)
}
links, err := LinkList()
if err != nil {
t.Fatal(err)
}
for _, l := range links {
if l.Attrs().Name == link.Attrs().Name {
t.Fatal("Link not removed properly")
}
}
}
func compareGeneve(t *testing.T, expected, actual *Geneve) {
if actual.ID != expected.ID {
t.Fatalf("Geneve.ID doesn't match: %d %d", actual.ID, expected.ID)
}
// set the Dport to 6081 (the linux default) if it wasn't specified at creation
if expected.Dport == 0 {
expected.Dport = 6081
}
if actual.Dport != expected.Dport {
t.Fatal("Geneve.Dport doesn't match")
}
if actual.Ttl != expected.Ttl {
t.Fatal("Geneve.Ttl doesn't match")
}
if actual.Tos != expected.Tos {
t.Fatal("Geneve.Tos doesn't match")
}
if !actual.Remote.Equal(expected.Remote) {
t.Fatalf("Geneve.Remote is not equal: %s!=%s", actual.Remote, expected.Remote)
}
if actual.FlowBased != expected.FlowBased {
t.Fatal("Geneve.FlowBased doesn't match")
}
if actual.InnerProtoInherit != expected.InnerProtoInherit {
t.Fatal("Geneve.InnerProtoInherit doesn't match")
}
// TODO: we should implement the rest of the geneve methods
}
func compareGretap(t *testing.T, expected, actual *Gretap) {
if actual.IKey != expected.IKey {
t.Fatal("Gretap.IKey doesn't match")
}
if actual.OKey != expected.OKey {
t.Fatal("Gretap.OKey doesn't match")
}
if actual.EncapSport != expected.EncapSport {
t.Fatal("Gretap.EncapSport doesn't match")
}
if actual.EncapDport != expected.EncapDport {
t.Fatal("Gretap.EncapDport doesn't match")
}
if expected.Local != nil && !actual.Local.Equal(expected.Local) {
t.Fatal("Gretap.Local doesn't match")
}
if expected.Remote != nil && !actual.Remote.Equal(expected.Remote) {
t.Fatal("Gretap.Remote doesn't match")
}
if actual.IFlags != expected.IFlags {
t.Fatal("Gretap.IFlags doesn't match")
}
if actual.OFlags != expected.OFlags {
t.Fatal("Gretap.OFlags doesn't match")
}
if actual.PMtuDisc != expected.PMtuDisc {
t.Fatal("Gretap.PMtuDisc doesn't match")
}
if actual.Ttl != expected.Ttl {
t.Fatal("Gretap.Ttl doesn't match")
}
if actual.Tos != expected.Tos {
t.Fatal("Gretap.Tos doesn't match")
}
if actual.EncapType != expected.EncapType {
t.Fatal("Gretap.EncapType doesn't match")
}
if actual.EncapFlags != expected.EncapFlags {
t.Fatal("Gretap.EncapFlags doesn't match")
}
if actual.Link != expected.Link {
t.Fatal("Gretap.Link doesn't match")
}
if actual.FlowBased != expected.FlowBased {
t.Fatal("Gretap.FlowBased doesn't match")
}
}
func compareGretun(t *testing.T, expected, actual *Gretun) {
if actual.Link != expected.Link {
t.Fatal("Gretun.Link doesn't match")
}
if actual.IFlags != expected.IFlags {
t.Fatal("Gretun.IFlags doesn't match")
}
if actual.OFlags != expected.OFlags {
t.Fatal("Gretun.OFlags doesn't match")
}
if actual.IKey != expected.IKey {
t.Fatal("Gretun.IKey doesn't match")
}
if actual.OKey != expected.OKey {
t.Fatal("Gretun.OKey doesn't match")
}
if expected.Local != nil && !actual.Local.Equal(expected.Local) {
t.Fatal("Gretun.Local doesn't match")
}
if expected.Remote != nil && !actual.Remote.Equal(expected.Remote) {
t.Fatal("Gretun.Remote doesn't match")
}
if actual.Ttl != expected.Ttl {
t.Fatal("Gretun.Ttl doesn't match")
}
if actual.Tos != expected.Tos {
t.Fatal("Gretun.Tos doesn't match")
}
if actual.PMtuDisc != expected.PMtuDisc {
t.Fatal("Gretun.PMtuDisc doesn't match")
}
if actual.EncapType != expected.EncapType {
t.Fatal("Gretun.EncapType doesn't match")
}
if actual.EncapFlags != expected.EncapFlags {
t.Fatal("Gretun.EncapFlags doesn't match")
}
if actual.EncapSport != expected.EncapSport {
t.Fatal("Gretun.EncapSport doesn't match")
}
if actual.EncapDport != expected.EncapDport {
t.Fatal("Gretun.EncapDport doesn't match")
}
if actual.FlowBased != expected.FlowBased {
t.Fatal("Gretun.FlowBased doesn't match")
}
}
func compareVxlan(t *testing.T, expected, actual *Vxlan) {
if actual.VxlanId != expected.VxlanId {
t.Fatal("Vxlan.VxlanId doesn't match")
}
if expected.SrcAddr != nil && !actual.SrcAddr.Equal(expected.SrcAddr) {
t.Fatal("Vxlan.SrcAddr doesn't match")
}
if expected.Group != nil && !actual.Group.Equal(expected.Group) {
t.Fatal("Vxlan.Group doesn't match")
}
if expected.TTL != -1 && actual.TTL != expected.TTL {
t.Fatal("Vxlan.TTL doesn't match")
}
if expected.TOS != -1 && actual.TOS != expected.TOS {
t.Fatal("Vxlan.TOS doesn't match")
}
if actual.Learning != expected.Learning {
t.Fatal("Vxlan.Learning doesn't match")
}
if actual.Proxy != expected.Proxy {
t.Fatal("Vxlan.Proxy doesn't match")
}
if actual.RSC != expected.RSC {
t.Fatal("Vxlan.RSC doesn't match")
}
if actual.L2miss != expected.L2miss {
t.Fatal("Vxlan.L2miss doesn't match")
}
if actual.L3miss != expected.L3miss {
t.Fatal("Vxlan.L3miss doesn't match")
}
if actual.GBP != expected.GBP {
t.Fatal("Vxlan.GBP doesn't match")
}
if actual.FlowBased != expected.FlowBased {
t.Fatal("Vxlan.FlowBased doesn't match")
}
if actual.UDP6ZeroCSumTx != expected.UDP6ZeroCSumTx {
t.Fatal("Vxlan.UDP6ZeroCSumTx doesn't match")
}
if actual.UDP6ZeroCSumRx != expected.UDP6ZeroCSumRx {
t.Fatal("Vxlan.UDP6ZeroCSumRx doesn't match")
}
if expected.NoAge {
if !actual.NoAge {
t.Fatal("Vxlan.NoAge doesn't match")
}
} else if expected.Age > 0 && actual.Age != expected.Age {
t.Fatal("Vxlan.Age doesn't match")
}
if expected.Limit > 0 && actual.Limit != expected.Limit {
t.Fatal("Vxlan.Limit doesn't match")
}
if expected.Port > 0 && actual.Port != expected.Port {
t.Fatal("Vxlan.Port doesn't match")
}
if expected.PortLow > 0 || expected.PortHigh > 0 {
if actual.PortLow != expected.PortLow {
t.Fatal("Vxlan.PortLow doesn't match")
}
if actual.PortHigh != expected.PortHigh {
t.Fatal("Vxlan.PortHigh doesn't match")
}
}
}
func compareXfrmi(t *testing.T, expected, actual *Xfrmi) {
if expected.Ifid != actual.Ifid {
t.Fatal("Xfrmi.Ifid doesn't match")
}
}
func compareTuntap(t *testing.T, expected, actual *Tuntap) {
if expected.Mode != actual.Mode {
t.Fatalf("Tuntap.Mode doesn't match: expected : %+v, got %+v", expected.Mode, actual.Mode)
}
if expected.Owner != actual.Owner {
t.Fatal("Tuntap.Owner doesn't match")
}
if expected.Group != actual.Group {
t.Fatal("Tuntap.Group doesn't match")
}
if expected.NonPersist != actual.NonPersist {
t.Fatal("Tuntap.Group doesn't match")
}
}
func compareBareUDP(t *testing.T, expected, actual *BareUDP) {
// set the Port to 6635 (the linux default) if it wasn't specified at creation
if expected.Port == 0 {
expected.Port = 6635
}
if actual.Port != expected.Port {
t.Fatalf("BareUDP.Port doesn't match: %d %d", actual.Port, expected.Port)
}
if actual.EtherType != expected.EtherType {
t.Fatalf("BareUDP.EtherType doesn't match: %x %x", actual.EtherType, expected.EtherType)
}
if actual.SrcPortMin != expected.SrcPortMin {
t.Fatalf("BareUDP.SrcPortMin doesn't match: %d %d", actual.SrcPortMin, expected.SrcPortMin)
}
if actual.MultiProto != expected.MultiProto {
t.Fatal("BareUDP.MultiProto doesn't match")
}
}
func TestLinkAddDelWithIndex(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Dummy{LinkAttrs{Index: 1000, Name: "foo"}})
}
func TestLinkAddDelDummy(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Dummy{LinkAttrs{Name: "foo"}})
}
func TestLinkAddDelDummyWithGroup(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Dummy{LinkAttrs{Name: "foo", Group: 42}})
}
func TestLinkModify(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
linkName := "foo"
originalMTU := 1500
updatedMTU := 1442
link := &Dummy{LinkAttrs{Name: linkName, MTU: originalMTU}}
base := link.Attrs()
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
link.MTU = updatedMTU
if err := LinkModify(link); err != nil {
t.Fatal(err)
}
result, err := LinkByName(linkName)
if err != nil {
t.Fatal(err)
}
rBase := result.Attrs()
if rBase.MTU != updatedMTU {
t.Fatalf("MTU is %d, should be %d", rBase.MTU, base.MTU)
}
}
func TestLinkAddDelIfb(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Ifb{LinkAttrs{Name: "foo"}})
}
func TestLinkAddDelBridge(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Bridge{LinkAttrs: LinkAttrs{Name: "foo", MTU: 1400}})
}
func TestLinkAddDelGeneve(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Geneve{
LinkAttrs: LinkAttrs{Name: "foo4", EncapType: "geneve"},
ID: 0x1000,
Remote: net.IPv4(127, 0, 0, 1)})
testLinkAddDel(t, &Geneve{
LinkAttrs: LinkAttrs{Name: "foo6", EncapType: "geneve"},
ID: 0x1000,
Remote: net.ParseIP("2001:db8:ef33::2")})
}
func TestLinkAddDelGeneveFlowBased(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Geneve{
LinkAttrs: LinkAttrs{Name: "foo"},
Dport: 1234,
FlowBased: true})
}
func TestGeneveCompareToIP(t *testing.T) {
ns, tearDown := setUpNamedNetlinkTest(t)
defer tearDown()
expected := &Geneve{
ID: 0x764332, // 23 bits
Remote: net.ParseIP("1.2.3.4"),
Dport: 6081,
}
// Create interface
cmd := exec.Command("ip", "netns", "exec", ns,
"ip", "link", "add", "gen0",
"type", "geneve",
"vni", fmt.Sprint(expected.ID),
"remote", expected.Remote.String(),
// TODO: unit tests are currently done on ubuntu 16, and the version of iproute2 there doesn't support dstport
// We can still do most of the testing by verifying that we do read the default port
// "dstport", fmt.Sprint(expected.Dport),
)
out := &bytes.Buffer{}
cmd.Stdout = out
cmd.Stderr = out
if rc := cmd.Run(); rc != nil {
t.Fatal("failed creating link:", rc, out.String())
}
link, err := LinkByName("gen0")
if err != nil {
t.Fatal("Failed getting link: ", err)
}
actual, ok := link.(*Geneve)
if !ok {
t.Fatalf("resulted interface is not geneve: %T", link)
}
compareGeneve(t, expected, actual)
}
func TestLinkAddDelGretap(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Gretap{
LinkAttrs: LinkAttrs{Name: "foo4"},
IKey: 0x101,
OKey: 0x101,
PMtuDisc: 1,
Local: net.IPv4(127, 0, 0, 1),
Remote: net.IPv4(127, 0, 0, 1)})
testLinkAddDel(t, &Gretap{
LinkAttrs: LinkAttrs{Name: "foo6"},
IKey: 0x101,
OKey: 0x101,
Local: net.ParseIP("2001:db8:abcd::1"),
Remote: net.ParseIP("2001:db8:ef33::2")})
}
func TestLinkAddDelGretun(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Gretun{
LinkAttrs: LinkAttrs{Name: "foo4"},
Local: net.IPv4(127, 0, 0, 1),
Remote: net.IPv4(127, 0, 0, 1)})
testLinkAddDel(t, &Gretun{
LinkAttrs: LinkAttrs{Name: "foo6"},
Local: net.ParseIP("2001:db8:abcd::1"),
Remote: net.ParseIP("2001:db8:ef33::2")})
}
func TestLinkAddDelGretunPointToMultiPoint(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Gretun{
LinkAttrs: LinkAttrs{Name: "foo"},
Local: net.IPv4(127, 0, 0, 1),
IKey: 1234,
OKey: 1234})
testLinkAddDel(t, &Gretun{
LinkAttrs: LinkAttrs{Name: "foo6"},
Local: net.ParseIP("2001:db8:1234::4"),
IKey: 5678,
OKey: 7890})
}
func TestLinkAddDelGretunFlowBased(t *testing.T) {
minKernelRequired(t, 4, 3)
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Gretun{
LinkAttrs: LinkAttrs{Name: "foo"},
FlowBased: true})
}
func TestLinkAddDelGretapFlowBased(t *testing.T) {
minKernelRequired(t, 4, 3)
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Gretap{
LinkAttrs: LinkAttrs{Name: "foo"},
FlowBased: true})
}
func TestLinkAddDelVlan(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
testLinkAddDel(t, &Vlan{LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index}, 900, VLAN_PROTOCOL_8021Q})
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelMacvlan(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
testLinkAddDel(t, &Macvlan{
LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_PRIVATE,
})
testLinkAddDel(t, &Macvlan{
LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_BRIDGE,
})
testLinkAddDel(t, &Macvlan{
LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_VEPA,
})
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelMacvtap(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
testLinkAddDel(t, &Macvtap{
Macvlan: Macvlan{
LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_PRIVATE,
},
})
testLinkAddDel(t, &Macvtap{
Macvlan: Macvlan{
LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_BRIDGE,
},
})
testLinkAddDel(t, &Macvtap{
Macvlan: Macvlan{
LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_VEPA,
},
})
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkMacvBCQueueLen(t *testing.T) {
minKernelRequired(t, 5, 11)
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
testLinkAddDel(t, &Macvlan{
LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_PRIVATE,
BCQueueLen: 10000,
})
testLinkAddDel(t, &Macvtap{
Macvlan: Macvlan{
LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_PRIVATE,
BCQueueLen: 10000,
},
})
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestNetkitPeerNs(t *testing.T) {
minKernelRequired(t, 6, 7)
tearDown := setUpNetlinkTest(t)
defer tearDown()
basens, err := netns.Get()
if err != nil {
t.Fatal("Failed to get basens")
}
defer basens.Close()
nsOne, err := netns.New()
if err != nil {
t.Fatal("Failed to create nsOne")
}
defer nsOne.Close()
nsTwo, err := netns.New()
if err != nil {
t.Fatal("Failed to create nsTwo")
}
defer nsTwo.Close()
netkit := &Netkit{
LinkAttrs: LinkAttrs{
Name: "foo",
Namespace: NsFd(basens),
},
Mode: NETKIT_MODE_L2,
Policy: NETKIT_POLICY_FORWARD,
PeerPolicy: NETKIT_POLICY_BLACKHOLE,
}
peerAttr := &LinkAttrs{
Name: "bar",
Namespace: NsFd(nsOne),
}
netkit.SetPeerAttrs(peerAttr)
if err := LinkAdd(netkit); err != nil {
t.Fatal(err)
}
_, err = LinkByName("bar")
if err == nil {
t.Fatal("netkit link bar is in nsTwo")
}
_, err = LinkByName("foo")
if err == nil {
t.Fatal("netkit link foo is in nsTwo")
}
err = netns.Set(basens)
if err != nil {
t.Fatal("Failed to set basens")
}
_, err = LinkByName("foo")
if err != nil {
t.Fatal("netkit link foo is not in basens")
}
err = netns.Set(nsOne)
if err != nil {
t.Fatal("Failed to set nsOne")
}
_, err = LinkByName("bar")
if err != nil {
t.Fatal("netkit link bar is not in nsOne")
}
}
func TestLinkAddDelNetkit(t *testing.T) {
minKernelRequired(t, 6, 7)
tearDown := setUpNetlinkTest(t)
defer tearDown()
netkit := &Netkit{
LinkAttrs: LinkAttrs{
Name: "foo",
},
Mode: NETKIT_MODE_L2,
Policy: NETKIT_POLICY_FORWARD,
PeerPolicy: NETKIT_POLICY_BLACKHOLE,
Scrub: NETKIT_SCRUB_DEFAULT,
PeerScrub: NETKIT_SCRUB_NONE,
}
peerAttr := &LinkAttrs{
Name: "bar",
}
netkit.SetPeerAttrs(peerAttr)
testLinkAddDel(t, netkit)
}
func TestLinkAddDelVeth(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
peerMAC, _ := net.ParseMAC("00:12:34:56:78:02")
veth := &Veth{
LinkAttrs: LinkAttrs{
Name: "foo",
TxQLen: testTxQLen,
MTU: 1400,
NumTxQueues: testTxQueues,
NumRxQueues: testRxQueues,
},
PeerName: "bar",
PeerHardwareAddr: peerMAC,
}
testLinkAddDel(t, veth)
}
func TestLinkAddDelBond(t *testing.T) {
minKernelRequired(t, 3, 13)
tearDown := setUpNetlinkTest(t)
defer tearDown()
modes := []string{"802.3ad", "balance-tlb"}
for _, mode := range modes {
bond := NewLinkBond(LinkAttrs{Name: "foo"})
bond.Mode = StringToBondModeMap[mode]
switch mode {
case "802.3ad":
bond.AdSelect = BondAdSelect(BOND_AD_SELECT_BANDWIDTH)
bond.AdActorSysPrio = 1
bond.AdUserPortKey = 1
bond.AdActorSystem, _ = net.ParseMAC("06:aa:bb:cc:dd:ee")
bond.ArpIpTargets = []net.IP{net.ParseIP("1.1.1.1"), net.ParseIP("1.1.1.2")}
case "balance-tlb":
bond.TlbDynamicLb = 1
bond.ArpIpTargets = []net.IP{net.ParseIP("1.1.1.2"), net.ParseIP("1.1.1.1")}
}
testLinkAddDel(t, bond)
}
}
func TestLinkAddVethWithDefaultTxQLen(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
la := NewLinkAttrs()
la.Name = "foo"
veth := &Veth{LinkAttrs: la, PeerName: "bar"}
if err := LinkAdd(veth); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if veth, ok := link.(*Veth); !ok {
t.Fatalf("unexpected link type: %T", link)
} else {
if veth.TxQLen != defaultTxQLen {
t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, defaultTxQLen)
}
}
peer, err := LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if veth, ok := peer.(*Veth); !ok {
t.Fatalf("unexpected link type: %T", link)
} else {
if veth.TxQLen != defaultTxQLen {
t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, defaultTxQLen)
}
}
}
func TestLinkAddVethWithZeroTxQLen(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
la := NewLinkAttrs()
la.Name = "foo"
la.TxQLen = 0
veth := &Veth{LinkAttrs: la, PeerName: "bar"}
if err := LinkAdd(veth); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if veth, ok := link.(*Veth); !ok {
t.Fatalf("unexpected link type: %T", link)
} else {
if veth.TxQLen != 0 {
t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, 0)
}
}
peer, err := LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if veth, ok := peer.(*Veth); !ok {
t.Fatalf("unexpected link type: %T", link)
} else {
if veth.TxQLen != 0 {
t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, 0)
}
}
}
func TestLinkAddDelDummyWithGSO(t *testing.T) {
const (
gsoMaxSegs = 16
gsoMaxSize = 1 << 14
)
minKernelRequired(t, 4, 16)
tearDown := setUpNetlinkTest(t)
defer tearDown()
dummy := &Dummy{LinkAttrs: LinkAttrs{Name: "foo", GSOMaxSize: gsoMaxSize, GSOMaxSegs: gsoMaxSegs}}
if err := LinkAdd(dummy); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
dummy, ok := link.(*Dummy)
if !ok {
t.Fatalf("unexpected link type: %T", link)
}
if dummy.GSOMaxSize != gsoMaxSize {
t.Fatalf("GSOMaxSize is %d, should be %d", dummy.GSOMaxSize, gsoMaxSize)
}
if dummy.GSOMaxSegs != gsoMaxSegs {
t.Fatalf("GSOMaxSeg is %d, should be %d", dummy.GSOMaxSegs, gsoMaxSegs)
}
}
func TestLinkAddDelDummyWithGRO(t *testing.T) {
const (
groMaxSize = 1 << 14
)
minKernelRequired(t, 5, 19)
tearDown := setUpNetlinkTest(t)
defer tearDown()
dummy := &Dummy{LinkAttrs: LinkAttrs{Name: "foo", GROMaxSize: groMaxSize}}
if err := LinkAdd(dummy); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
dummy, ok := link.(*Dummy)
if !ok {
t.Fatalf("unexpected link type: %T", link)
}
if dummy.GROMaxSize != groMaxSize {
t.Fatalf("GROMaxSize is %d, should be %d", dummy.GROMaxSize, groMaxSize)
}
}
func TestLinkAddDummyWithTxQLen(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
la := NewLinkAttrs()
la.Name = "foo"
la.TxQLen = 1500
dummy := &Dummy{LinkAttrs: la}
if err := LinkAdd(dummy); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if dummy, ok := link.(*Dummy); !ok {
t.Fatalf("unexpected link type: %T", link)
} else {
if dummy.TxQLen != 1500 {
t.Fatalf("TxQLen is %d, should be %d", dummy.TxQLen, 1500)
}
}
}
func TestLinkAddDelBridgeMaster(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
master := &Bridge{LinkAttrs: LinkAttrs{Name: "foo"}}
if err := LinkAdd(master); err != nil {
t.Fatal(err)
}
testLinkAddDel(t, &Dummy{LinkAttrs{Name: "bar", MasterIndex: master.Attrs().Index}})
if err := LinkDel(master); err != nil {
t.Fatal(err)
}
}
func testLinkSetUnsetResetMaster(t *testing.T, master, newmaster Link) {
slave := &Dummy{LinkAttrs{Name: "baz"}}
if err := LinkAdd(slave); err != nil {
t.Fatal(err)
}
nonexistsmaster := &Bridge{LinkAttrs: LinkAttrs{Name: "foobar"}}
if err := LinkSetMaster(slave, nonexistsmaster); err == nil {
t.Fatal("error expected")
}
if err := LinkSetMaster(slave, master); err != nil {
t.Fatal(err)
}
link, err := LinkByName("baz")
if err != nil {
t.Fatal(err)
}
if link.Attrs().MasterIndex != master.Attrs().Index {
t.Fatal("Master not set properly")
}
if err := LinkSetMaster(slave, newmaster); err != nil {
t.Fatal(err)
}
link, err = LinkByName("baz")
if err != nil {
t.Fatal(err)
}
if link.Attrs().MasterIndex != newmaster.Attrs().Index {
t.Fatal("Master not reset properly")
}
if err := LinkSetNoMaster(slave); err != nil {
t.Fatal(err)
}
link, err = LinkByName("baz")
if err != nil {
t.Fatal(err)
}
if link.Attrs().MasterIndex != 0 {
t.Fatal("Master not unset properly")
}
if err := LinkDel(slave); err != nil {
t.Fatal(err)
}
}
func TestLinkSetUnsetResetMaster(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
master := &Bridge{LinkAttrs: LinkAttrs{Name: "foo"}}
if err := LinkAdd(master); err != nil {
t.Fatal(err)
}
newmaster := &Bridge{LinkAttrs: LinkAttrs{Name: "bar"}}
if err := LinkAdd(newmaster); err != nil {
t.Fatal(err)
}
testLinkSetUnsetResetMaster(t, master, newmaster)
if err := LinkDel(newmaster); err != nil {
t.Fatal(err)
}
if err := LinkDel(master); err != nil {
t.Fatal(err)
}
}
func TestLinkSetUnsetResetMasterBond(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
master := NewLinkBond(LinkAttrs{Name: "foo"})
master.Mode = BOND_MODE_BALANCE_RR
if err := LinkAdd(master); err != nil {
t.Fatal(err)
}
newmaster := NewLinkBond(LinkAttrs{Name: "bar"})
newmaster.Mode = BOND_MODE_BALANCE_RR
if err := LinkAdd(newmaster); err != nil {
t.Fatal(err)
}
testLinkSetUnsetResetMaster(t, master, newmaster)
if err := LinkDel(newmaster); err != nil {
t.Fatal(err)
}
if err := LinkDel(master); err != nil {
t.Fatal(err)
}
}
func TestLinkSetNs(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
basens, err := netns.Get()
if err != nil {
t.Fatal("Failed to get basens")
}
defer basens.Close()
newns, err := netns.New()
if err != nil {
t.Fatal("Failed to create newns")
}
defer newns.Close()
link := &Veth{LinkAttrs{Name: "foo"}, "bar", nil, nil}
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
peer, err := LinkByName("bar")
if err != nil {
t.Fatal(err)
}
LinkSetNsFd(peer, int(basens))
if err != nil {
t.Fatal("Failed to set newns for link")
}
_, err = LinkByName("bar")
if err == nil {
t.Fatal("Link bar is still in newns")
}
err = netns.Set(basens)
if err != nil {
t.Fatal("Failed to set basens")
}
peer, err = LinkByName("bar")
if err != nil {
t.Fatal("Link is not in basens")
}
if err := LinkDel(peer); err != nil {
t.Fatal(err)
}
err = netns.Set(newns)
if err != nil {
t.Fatal("Failed to set newns")
}
_, err = LinkByName("foo")
if err == nil {
t.Fatal("Other half of veth pair not deleted")
}
}
func TestLinkAddDelWireguard(t *testing.T) {
minKernelRequired(t, 5, 6)
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Wireguard{LinkAttrs: LinkAttrs{Name: "wg0"}})
}
func TestVethPeerNs(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
basens, err := netns.Get()
if err != nil {
t.Fatal("Failed to get basens")
}
defer basens.Close()
newns, err := netns.New()
if err != nil {
t.Fatal("Failed to create newns")
}
defer newns.Close()
link := &Veth{LinkAttrs{Name: "foo"}, "bar", nil, NsFd(basens)}
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
_, err = LinkByName("bar")
if err == nil {
t.Fatal("Link bar is in newns")
}
err = netns.Set(basens)
if err != nil {
t.Fatal("Failed to set basens")
}
_, err = LinkByName("bar")
if err != nil {
t.Fatal("Link bar is not in basens")
}
err = netns.Set(newns)
if err != nil {
t.Fatal("Failed to set newns")
}
_, err = LinkByName("foo")
if err != nil {
t.Fatal("Link foo is not in newns")
}
}
func TestVethPeerNs2(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
basens, err := netns.Get()
if err != nil {
t.Fatal("Failed to get basens")
}
defer basens.Close()
onens, err := netns.New()
if err != nil {
t.Fatal("Failed to create newns")
}
defer onens.Close()
twons, err := netns.New()
if err != nil {
t.Fatal("Failed to create twons")
}
defer twons.Close()
link := &Veth{LinkAttrs{Name: "foo", Namespace: NsFd(onens)}, "bar", nil, NsFd(basens)}
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
_, err = LinkByName("foo")
if err == nil {
t.Fatal("Link foo is in twons")
}
_, err = LinkByName("bar")
if err == nil {
t.Fatal("Link bar is in twons")
}
err = netns.Set(basens)
if err != nil {
t.Fatal("Failed to set basens")
}
_, err = LinkByName("bar")
if err != nil {
t.Fatal("Link bar is not in basens")
}
err = netns.Set(onens)
if err != nil {
t.Fatal("Failed to set onens")
}
_, err = LinkByName("foo")
if err != nil {
t.Fatal("Link foo is not in onens")
}
}
func TestLinkAddDelVxlan(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{
LinkAttrs{Name: "foo"},
}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
vxlan := Vxlan{
LinkAttrs: LinkAttrs{
Name: "bar",
},
VxlanId: 10,
VtepDevIndex: parent.Index,
Learning: true,
L2miss: true,
L3miss: true,
}
testLinkAddDel(t, &vxlan)
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelVxlanUdpCSum6(t *testing.T) {
minKernelRequired(t, 3, 16)
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{
LinkAttrs{Name: "foo"},
}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
vxlan := Vxlan{
LinkAttrs: LinkAttrs{
Name: "bar",
},
VxlanId: 10,
VtepDevIndex: parent.Index,
Learning: true,
L2miss: true,
L3miss: true,
UDP6ZeroCSumTx: true,
UDP6ZeroCSumRx: true,
}
testLinkAddDel(t, &vxlan)
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelVxlanGbp(t *testing.T) {
minKernelRequired(t, 4, 0)
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{
LinkAttrs{Name: "foo"},
}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
vxlan := Vxlan{
LinkAttrs: LinkAttrs{
Name: "bar",
},
VxlanId: 10,
VtepDevIndex: parent.Index,
Learning: true,
L2miss: true,
L3miss: true,
UDP6ZeroCSumTx: true,
UDP6ZeroCSumRx: true,
GBP: true,
}
testLinkAddDel(t, &vxlan)
if err := LinkDel(parent); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelVxlanFlowBased(t *testing.T) {
minKernelRequired(t, 4, 3)
tearDown := setUpNetlinkTest(t)
defer tearDown()
vxlan := Vxlan{
LinkAttrs: LinkAttrs{
Name: "foo",
},
Learning: false,
FlowBased: true,
}
testLinkAddDel(t, &vxlan)
}
func TestLinkAddDelBareUDP(t *testing.T) {
minKernelRequired(t, 5, 1)
setUpNetlinkTestWithKModule(t, "bareudp")
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &BareUDP{
LinkAttrs: LinkAttrs{Name: "foo99"},
Port: 6635,
EtherType: syscall.ETH_P_MPLS_UC,
SrcPortMin: 12345,
MultiProto: true,
})
testLinkAddDel(t, &BareUDP{
LinkAttrs: LinkAttrs{Name: "foo100"},
Port: 6635,
EtherType: syscall.ETH_P_IP,
SrcPortMin: 12345,
MultiProto: true,
})
}
func TestBareUDPCompareToIP(t *testing.T) {
if os.Getenv("CI") == "true" {
t.Skipf("Fails in CI due to old iproute2")
}
// requires iproute2 >= 5.10
minKernelRequired(t, 5, 9)
setUpNetlinkTestWithKModule(t, "bareudp")
ns, tearDown := setUpNamedNetlinkTest(t)
defer tearDown()
expected := &BareUDP{
Port: uint16(6635),
EtherType: syscall.ETH_P_MPLS_UC,
SrcPortMin: 12345,
MultiProto: true,
}
// Create interface
cmd := exec.Command("ip", "netns", "exec", ns,
"ip", "link", "add", "b0",
"type", "bareudp",
"dstport", fmt.Sprint(expected.Port),
"ethertype", "mpls_uc",
"srcportmin", fmt.Sprint(expected.SrcPortMin),
"multiproto",
)
out := &bytes.Buffer{}
cmd.Stdout = out
cmd.Stderr = out
if rc := cmd.Run(); rc != nil {
t.Fatal("failed creating link:", rc, out.String())
}
link, err := LinkByName("b0")
if err != nil {
t.Fatal("Failed getting link: ", err)
}
actual, ok := link.(*BareUDP)
if !ok {
t.Fatalf("resulted interface is not BareUDP: %T", link)
}
compareBareUDP(t, expected, actual)
}
func TestLinkAddDelIPVlanL2(t *testing.T) {
minKernelRequired(t, 4, 2)
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
ipv := IPVlan{
LinkAttrs: LinkAttrs{
Name: "bar",
ParentIndex: parent.Index,
},
Mode: IPVLAN_MODE_L2,
}
testLinkAddDel(t, &ipv)
}
func TestLinkAddDelIPVlanL3(t *testing.T) {
minKernelRequired(t, 4, 2)
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
ipv := IPVlan{
LinkAttrs: LinkAttrs{
Name: "bar",
ParentIndex: parent.Index,
},
Mode: IPVLAN_MODE_L3,
}
testLinkAddDel(t, &ipv)
}
func TestLinkAddDelIPVlanVepa(t *testing.T) {
minKernelRequired(t, 4, 15)
tearDown := setUpNetlinkTest(t)
defer tearDown()
parent := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
ipv := IPVlan{
LinkAttrs: LinkAttrs{
Name: "bar",
ParentIndex: parent.Index,
},
Mode: IPVLAN_MODE_L3,
Flag: IPVLAN_FLAG_VEPA,
}
testLinkAddDel(t, &ipv)
}
func TestLinkAddDelIPVlanNoParent(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
ipv := IPVlan{
LinkAttrs: LinkAttrs{
Name: "bar",
},
Mode: IPVLAN_MODE_L3,
}
err := LinkAdd(&ipv)
if err == nil {
t.Fatal("Add should fail if ipvlan creating without ParentIndex")
}
if err.Error() != "Can't create ipvlan link without ParentIndex" {
t.Fatalf("Error should be about missing ParentIndex, got %q", err)
}
}
func TestLinkByIndex(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
dummy := &Dummy{LinkAttrs{Name: "dummy"}}
if err := LinkAdd(dummy); err != nil {
t.Fatal(err)
}
found, err := LinkByIndex(dummy.Index)
if err != nil {
t.Fatal(err)
}
if found.Attrs().Index != dummy.Attrs().Index {
t.Fatalf("Indices don't match: %v != %v", found.Attrs().Index, dummy.Attrs().Index)
}
LinkDel(dummy)
// test not found
_, err = LinkByIndex(dummy.Attrs().Index)
if err == nil {
t.Fatalf("LinkByIndex(%v) found deleted link", err)
}
}
func TestLinkSet(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Dummy{LinkAttrs{Name: "foo"}}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
err = LinkSetName(link, "bar")
if err != nil {
t.Fatalf("Could not change interface name: %v", err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatalf("Interface name not changed: %v", err)
}
err = LinkSetMTU(link, 1400)
if err != nil {
t.Fatalf("Could not set MTU: %v", err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if link.Attrs().MTU != 1400 {
t.Fatal("MTU not changed")
}
err = LinkSetTxQLen(link, 500)
if err != nil {
t.Fatalf("Could not set txqlen: %v", err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if link.Attrs().TxQLen != 500 {
t.Fatal("txqlen not changed")
}
addr, err := net.ParseMAC("00:12:34:56:78:AB")
if err != nil {
t.Fatal(err)
}
err = LinkSetHardwareAddr(link, addr)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(link.Attrs().HardwareAddr, addr) {
t.Fatalf("hardware address not changed")
}
err = LinkSetAlias(link, "barAlias")
if err != nil {
t.Fatalf("Could not set alias: %v", err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if link.Attrs().Alias != "barAlias" {
t.Fatalf("alias not changed")
}
link, err = LinkByAlias("barAlias")
if err != nil {
t.Fatal(err)
}
err = LinkSetGroup(link, 42)
if err != nil {
t.Fatalf("Could not set group: %v", err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
if link.Attrs().Group != 42 {
t.Fatal("Link group not changed")
}
}
func TestLinkAltName(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Dummy{LinkAttrs{Name: "bar"}}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("bar")
if err != nil {
t.Fatal(err)
}
altNames := []string{"altname", "altname2", "some_longer_altname"}
sort.Strings(altNames)
altNamesStr := strings.Join(altNames, ",")
for _, altname := range altNames {
err = LinkAddAltName(link, altname)
if err != nil {
t.Fatalf("Could not add %s: %v", altname, err)
}
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
sort.Strings(link.Attrs().AltNames)
linkAltNamesStr := strings.Join(link.Attrs().AltNames, ",")
if altNamesStr != linkAltNamesStr {
t.Fatalf("Expected %s AltNames, got %s", altNamesStr, linkAltNamesStr)
}
for _, altname := range altNames {
link, err = LinkByName(altname)
if err != nil {
t.Fatal(err)
}
}
for idx, altName := range altNames {
err = LinkDelAltName(link, altName)
if err != nil {
t.Fatalf("Could not delete %s: %v", altName, err)
}
link, err = LinkByName("bar")
if err != nil {
t.Fatal(err)
}
sort.Strings(link.Attrs().AltNames)
linkAltNamesStr := strings.Join(link.Attrs().AltNames, ",")
altNamesStr := strings.Join(altNames[idx+1:], ",")
if linkAltNamesStr != altNamesStr {
t.Fatalf("Expected %s AltNames, got %s", altNamesStr, linkAltNamesStr)
}
}
}
func TestLinkSetARP(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1500}, PeerName: "banana"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
err = LinkSetARPOff(link)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().RawFlags&unix.IFF_NOARP != uint32(unix.IFF_NOARP) {
t.Fatalf("NOARP was not set")
}
err = LinkSetARPOn(link)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().RawFlags&unix.IFF_NOARP != 0 {
t.Fatalf("NOARP is still set")
}
}
func expectLinkUpdate(ch <-chan LinkUpdate, ifaceName string, up bool) bool {
for {
timeout := time.After(time.Minute)
select {
case update := <-ch:
if ifaceName == update.Link.Attrs().Name && (update.IfInfomsg.Flags&unix.IFF_UP != 0) == up {
return true
}
case <-timeout:
return false
}
}
}
func TestLinkSubscribe(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
ch := make(chan LinkUpdate)
done := make(chan struct{})
defer close(done)
if err := LinkSubscribe(ch, done); err != nil {
t.Fatal(err)
}
link := &Veth{LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1400}, "bar", nil, nil}
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "foo", false) {
t.Fatal("Add update not received as expected")
}
if err := LinkSetUp(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "foo", true) {
t.Fatal("Link Up update not received as expected")
}
if err := LinkDel(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "foo", false) {
t.Fatal("Del update not received as expected")
}
}
func TestLinkSubscribeWithOptions(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
ch := make(chan LinkUpdate)
done := make(chan struct{})
defer close(done)
var lastError error
defer func() {
if lastError != nil {
t.Fatalf("Fatal error received during subscription: %v", lastError)
}
}()
if err := LinkSubscribeWithOptions(ch, done, LinkSubscribeOptions{
ErrorCallback: func(err error) {
lastError = err
},
}); err != nil {
t.Fatal(err)
}
link := &Veth{LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1400}, "bar", nil, nil}
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "foo", false) {
t.Fatal("Add update not received as expected")
}
}
func TestLinkSubscribeAt(t *testing.T) {
skipUnlessRoot(t)
// Create an handle on a custom netns
newNs, err := netns.New()
if err != nil {
t.Fatal(err)
}
defer newNs.Close()
nh, err := NewHandleAt(newNs)
if err != nil {
t.Fatal(err)
}
defer nh.Close()
// Subscribe for Link events on the custom netns
ch := make(chan LinkUpdate)
done := make(chan struct{})
defer close(done)
if err := LinkSubscribeAt(newNs, ch, done); err != nil {
t.Fatal(err)
}
link := &Veth{LinkAttrs{Name: "test", TxQLen: testTxQLen, MTU: 1400}, "bar", nil, nil}
if err := nh.LinkAdd(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "test", false) {
t.Fatal("Add update not received as expected")
}
if err := nh.LinkSetUp(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "test", true) {
t.Fatal("Link Up update not received as expected")
}
if err := nh.LinkDel(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "test", false) {
t.Fatal("Del update not received as expected")
}
}
func TestLinkSubscribeListExisting(t *testing.T) {
skipUnlessRoot(t)
// Create an handle on a custom netns
newNs, err := netns.New()
if err != nil {
t.Fatal(err)
}
defer newNs.Close()
nh, err := NewHandleAt(newNs)
if err != nil {
t.Fatal(err)
}
defer nh.Close()
link := &Veth{LinkAttrs{Name: "test", TxQLen: testTxQLen, MTU: 1400}, "bar", nil, nil}
if err := nh.LinkAdd(link); err != nil {
t.Fatal(err)
}
// Subscribe for Link events on the custom netns
ch := make(chan LinkUpdate)
done := make(chan struct{})
defer close(done)
if err := LinkSubscribeWithOptions(ch, done, LinkSubscribeOptions{
Namespace: &newNs,
ListExisting: true},
); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "test", false) {
t.Fatal("Add update not received as expected")
}
if err := nh.LinkSetUp(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "test", true) {
t.Fatal("Link Up update not received as expected")
}
if err := nh.LinkDel(link); err != nil {
t.Fatal(err)
}
if !expectLinkUpdate(ch, "test", false) {
t.Fatal("Del update not received as expected")
}
}
func TestLinkStats(t *testing.T) {
defer setUpNetlinkTest(t)()
// Create a veth pair and verify the cross-stats once both
// ends are brought up and some ICMPv6 packets are exchanged
v0 := "v0"
v1 := "v1"
vethLink := &Veth{LinkAttrs: LinkAttrs{Name: v0}, PeerName: v1}
if err := LinkAdd(vethLink); err != nil {
t.Fatal(err)
}
veth0, err := LinkByName(v0)
if err != nil {
t.Fatal(err)
}
if err := LinkSetUp(veth0); err != nil {
t.Fatal(err)
}
veth1, err := LinkByName(v1)
if err != nil {
t.Fatal(err)
}
if err := LinkSetUp(veth1); err != nil {
t.Fatal(err)
}
time.Sleep(2 * time.Second)
// verify statistics
veth0, err = LinkByName(v0)
if err != nil {
t.Fatal(err)
}
veth1, err = LinkByName(v1)
if err != nil {
t.Fatal(err)
}
v0Stats := veth0.Attrs().Statistics
v1Stats := veth1.Attrs().Statistics
if v0Stats.RxPackets != v1Stats.TxPackets || v0Stats.TxPackets != v1Stats.RxPackets ||
v0Stats.RxBytes != v1Stats.TxBytes || v0Stats.TxBytes != v1Stats.RxBytes {
t.Fatalf("veth ends counters differ:\n%v\n%v", v0Stats, v1Stats)
}
}
func TestLinkXdp(t *testing.T) {
links, err := LinkList()
if err != nil {
t.Fatal(err)
}
var testXdpLink Link
for _, link := range links {
if link.Attrs().Xdp != nil && !link.Attrs().Xdp.Attached {
testXdpLink = link
break
}
}
if testXdpLink == nil {
t.Skipf("No link supporting XDP found")
}
fd, err := loadSimpleBpf(BPF_PROG_TYPE_XDP, 2 /*XDP_PASS*/)
if err != nil {
t.Skipf("Loading bpf program failed: %s", err)
}
if err := LinkSetXdpFd(testXdpLink, fd); err != nil {
t.Fatal(err)
}
if err := LinkSetXdpFdWithFlags(testXdpLink, fd, nl.XDP_FLAGS_UPDATE_IF_NOEXIST); !errors.Is(err, unix.EBUSY) {
t.Fatal(err)
}
if err := LinkSetXdpFd(testXdpLink, -1); err != nil {
t.Fatal(err)
}
}
func TestLinkAddDelIptun(t *testing.T) {
minKernelRequired(t, 4, 9)
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Iptun{
LinkAttrs: LinkAttrs{Name: "iptunfoo"},
PMtuDisc: 1,
Local: net.IPv4(127, 0, 0, 1),
Remote: net.IPv4(127, 0, 0, 1)})
}
func TestLinkAddDelIptunFlowBased(t *testing.T) {
minKernelRequired(t, 4, 9)
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Iptun{
LinkAttrs: LinkAttrs{Name: "iptunflowfoo"},
FlowBased: true,
})
}
func TestLinkAddDelIp6tnl(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Ip6tnl{
LinkAttrs: LinkAttrs{Name: "ip6tnltest"},
Local: net.ParseIP("2001:db8::100"),
Remote: net.ParseIP("2001:db8::200"),
})
}
func TestLinkAddDelIp6tnlFlowbased(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Ip6tnl{
LinkAttrs: LinkAttrs{Name: "ip6tnltest"},
FlowBased: true,
})
}
func TestLinkAddDelSittun(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Sittun{
LinkAttrs: LinkAttrs{Name: "sittunfoo"},
PMtuDisc: 1,
Local: net.IPv4(127, 0, 0, 1),
Remote: net.IPv4(127, 0, 0, 1)})
}
func TestLinkAddDelVti(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
testLinkAddDel(t, &Vti{
LinkAttrs: LinkAttrs{Name: "vtifoo"},
IKey: 0x101,
OKey: 0x101,
Local: net.IPv4(127, 0, 0, 1),
Remote: net.IPv4(127, 0, 0, 1)})
testLinkAddDel(t, &Vti{
LinkAttrs: LinkAttrs{Name: "vtibar"},
IKey: 0x101,
OKey: 0x101,
Local: net.IPv6loopback,
Remote: net.IPv6loopback})
}
func TestLinkSetGSOMaxSize(t *testing.T) {
minKernelRequired(t, 5, 19)
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1500}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
err = LinkSetGSOMaxSize(link, 32768)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().GSOMaxSize != 32768 {
t.Fatalf("GSO max size was not modified")
}
}
func TestLinkSetGSOMaxSegs(t *testing.T) {
minKernelRequired(t, 5, 19)
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1500}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
err = LinkSetGSOMaxSegs(link, 16)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().GSOMaxSegs != 16 {
t.Fatalf("GSO max segments was not modified")
}
}
func TestLinkSetGROMaxSize(t *testing.T) {
minKernelRequired(t, 5, 19)
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1500}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
err = LinkSetGROMaxSize(link, 32768)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().GROMaxSize != 32768 {
t.Fatalf("GRO max size was not modified")
}
}
func TestLinkGetTSOMax(t *testing.T) {
minKernelRequired(t, 5, 19)
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1500}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().TSOMaxSize != 524280 || link.Attrs().TSOMaxSegs != 65535 {
t.Fatalf("TSO max size and segments could not be retrieved")
}
}
func TestLinkSetGSOIPv4MaxSize(t *testing.T) {
minKernelRequired(t, 6, 3)
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1500}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
err = LinkSetGSOIPv4MaxSize(link, 32768)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().GSOIPv4MaxSize != 32768 {
t.Fatalf("GSO max size was not modified")
}
}
func TestLinkSetGROIPv4MaxSize(t *testing.T) {
minKernelRequired(t, 6, 3)
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1500}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
err = LinkSetGROIPv4MaxSize(link, 32768)
if err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().GROIPv4MaxSize != 32768 {
t.Fatalf("GRO max size was not modified")
}
}
func TestBridgeCreationWithMulticastSnooping(t *testing.T) {
minKernelRequired(t, 4, 4)
tearDown := setUpNetlinkTest(t)
defer tearDown()
bridgeWithDefaultMcastSnoopName := "foo"
bridgeWithDefaultMcastSnoop := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithDefaultMcastSnoopName}}
if err := LinkAdd(bridgeWithDefaultMcastSnoop); err != nil {
t.Fatal(err)
}
expectMcastSnooping(t, bridgeWithDefaultMcastSnoopName, true)
if err := LinkDel(bridgeWithDefaultMcastSnoop); err != nil {
t.Fatal(err)
}
mcastSnoop := true
bridgeWithMcastSnoopOnName := "bar"
bridgeWithMcastSnoopOn := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithMcastSnoopOnName}, MulticastSnooping: &mcastSnoop}
if err := LinkAdd(bridgeWithMcastSnoopOn); err != nil {
t.Fatal(err)
}
expectMcastSnooping(t, bridgeWithMcastSnoopOnName, true)
if err := LinkDel(bridgeWithMcastSnoopOn); err != nil {
t.Fatal(err)
}
mcastSnoop = false
bridgeWithMcastSnoopOffName := "foobar"
bridgeWithMcastSnoopOff := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithMcastSnoopOffName}, MulticastSnooping: &mcastSnoop}
if err := LinkAdd(bridgeWithMcastSnoopOff); err != nil {
t.Fatal(err)
}
expectMcastSnooping(t, bridgeWithMcastSnoopOffName, false)
if err := LinkDel(bridgeWithMcastSnoopOff); err != nil {
t.Fatal(err)
}
}
func TestBridgeSetMcastSnoop(t *testing.T) {
minKernelRequired(t, 4, 4)
tearDown := setUpNetlinkTest(t)
defer tearDown()
bridgeName := "foo"
bridge := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeName}}
if err := LinkAdd(bridge); err != nil {
t.Fatal(err)
}
expectMcastSnooping(t, bridgeName, true)
if err := BridgeSetMcastSnoop(bridge, false); err != nil {
t.Fatal(err)
}
expectMcastSnooping(t, bridgeName, false)
if err := BridgeSetMcastSnoop(bridge, true); err != nil {
t.Fatal(err)
}
expectMcastSnooping(t, bridgeName, true)
if err := LinkDel(bridge); err != nil {
t.Fatal(err)
}
}
func expectMcastSnooping(t *testing.T, linkName string, expected bool) {
bridge, err := LinkByName(linkName)
if err != nil {
t.Fatal(err)
}
if actual := *bridge.(*Bridge).MulticastSnooping; actual != expected {
t.Fatalf("expected %t got %t", expected, actual)
}
}
func TestBridgeSetVlanFiltering(t *testing.T) {
minKernelRequired(t, 4, 4)
tearDown := setUpNetlinkTest(t)
defer tearDown()
bridgeName := "foo"
bridge := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeName}}
if err := LinkAdd(bridge); err != nil {
t.Fatal(err)
}
expectVlanFiltering(t, bridgeName, false)
if err := BridgeSetVlanFiltering(bridge, true); err != nil {
t.Fatal(err)
}
expectVlanFiltering(t, bridgeName, true)
if err := BridgeSetVlanFiltering(bridge, false); err != nil {
t.Fatal(err)
}
expectVlanFiltering(t, bridgeName, false)
if err := LinkDel(bridge); err != nil {
t.Fatal(err)
}
}
func TestBridgeDefaultPVID(t *testing.T) {
minKernelRequired(t, 4, 4)
tearDown := setUpNetlinkTest(t)
defer tearDown()
bridgeName := "foo"
bridge := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeName}}
if err := LinkAdd(bridge); err != nil {
t.Fatal(err)
}
expectVlanDefaultPVID(t, bridgeName, 1)
if err := BridgeSetVlanDefaultPVID(bridge, 100); err != nil {
t.Fatal(err)
}
expectVlanDefaultPVID(t, bridgeName, 100)
if err := BridgeSetVlanDefaultPVID(bridge, 0); err != nil {
t.Fatal(err)
}
expectVlanDefaultPVID(t, bridgeName, 0)
if err := LinkDel(bridge); err != nil {
t.Fatal(err)
}
}
func expectVlanFiltering(t *testing.T, linkName string, expected bool) {
bridge, err := LinkByName(linkName)
if err != nil {
t.Fatal(err)
}
if actual := *bridge.(*Bridge).VlanFiltering; actual != expected {
t.Fatalf("expected %t got %t", expected, actual)
}
}
func expectVlanDefaultPVID(t *testing.T, linkName string, expected uint16) {
bridge, err := LinkByName(linkName)
if err != nil {
t.Fatal(err)
}
if actual := *bridge.(*Bridge).VlanDefaultPVID; actual != expected {
t.Fatalf("expected %d got %d", expected, actual)
}
}
func TestBridgeCreationWithAgeingTime(t *testing.T) {
minKernelRequired(t, 3, 18)
tearDown := setUpNetlinkTest(t)
defer tearDown()
bridgeWithSpecifiedAgeingTimeName := "foo"
ageingTime := uint32(20000)
bridgeWithSpecifiedAgeingTime := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithSpecifiedAgeingTimeName}, AgeingTime: &ageingTime}
if err := LinkAdd(bridgeWithSpecifiedAgeingTime); err != nil {
t.Fatal(err)
}
retrievedBridge, err := LinkByName(bridgeWithSpecifiedAgeingTimeName)
if err != nil {
t.Fatal(err)
}
actualAgeingTime := *retrievedBridge.(*Bridge).AgeingTime
if actualAgeingTime != ageingTime {
t.Fatalf("expected %d got %d", ageingTime, actualAgeingTime)
}
if err := LinkDel(bridgeWithSpecifiedAgeingTime); err != nil {
t.Fatal(err)
}
bridgeWithDefaultAgeingTimeName := "bar"
bridgeWithDefaultAgeingTime := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithDefaultAgeingTimeName}}
if err := LinkAdd(bridgeWithDefaultAgeingTime); err != nil {
t.Fatal(err)
}
retrievedBridge, err = LinkByName(bridgeWithDefaultAgeingTimeName)
if err != nil {
t.Fatal(err)
}
actualAgeingTime = *retrievedBridge.(*Bridge).AgeingTime
if actualAgeingTime != 30000 {
t.Fatalf("expected %d got %d", 30000, actualAgeingTime)
}
if err := LinkDel(bridgeWithDefaultAgeingTime); err != nil {
t.Fatal(err)
}
}
func TestBridgeCreationWithHelloTime(t *testing.T) {
minKernelRequired(t, 3, 18)
tearDown := setUpNetlinkTest(t)
defer tearDown()
bridgeWithSpecifiedHelloTimeName := "foo"
helloTime := uint32(300)
bridgeWithSpecifiedHelloTime := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithSpecifiedHelloTimeName}, HelloTime: &helloTime}
if err := LinkAdd(bridgeWithSpecifiedHelloTime); err != nil {
t.Fatal(err)
}
retrievedBridge, err := LinkByName(bridgeWithSpecifiedHelloTimeName)
if err != nil {
t.Fatal(err)
}
actualHelloTime := *retrievedBridge.(*Bridge).HelloTime
if actualHelloTime != helloTime {
t.Fatalf("expected %d got %d", helloTime, actualHelloTime)
}
if err := LinkDel(bridgeWithSpecifiedHelloTime); err != nil {
t.Fatal(err)
}
bridgeWithDefaultHelloTimeName := "bar"
bridgeWithDefaultHelloTime := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithDefaultHelloTimeName}}
if err := LinkAdd(bridgeWithDefaultHelloTime); err != nil {
t.Fatal(err)
}
retrievedBridge, err = LinkByName(bridgeWithDefaultHelloTimeName)
if err != nil {
t.Fatal(err)
}
actualHelloTime = *retrievedBridge.(*Bridge).HelloTime
if actualHelloTime != 200 {
t.Fatalf("expected %d got %d", 200, actualHelloTime)
}
if err := LinkDel(bridgeWithDefaultHelloTime); err != nil {
t.Fatal(err)
}
}
func TestBridgeCreationWithVlanFiltering(t *testing.T) {
minKernelRequired(t, 3, 18)
tearDown := setUpNetlinkTest(t)
defer tearDown()
bridgeWithVlanFilteringEnabledName := "foo"
vlanFiltering := true
bridgeWithVlanFilteringEnabled := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithVlanFilteringEnabledName}, VlanFiltering: &vlanFiltering}
if err := LinkAdd(bridgeWithVlanFilteringEnabled); err != nil {
t.Fatal(err)
}
retrievedBridge, err := LinkByName(bridgeWithVlanFilteringEnabledName)
if err != nil {
t.Fatal(err)
}
retrievedVlanFilteringState := *retrievedBridge.(*Bridge).VlanFiltering
if retrievedVlanFilteringState != vlanFiltering {
t.Fatalf("expected %t got %t", vlanFiltering, retrievedVlanFilteringState)
}
if err := LinkDel(bridgeWithVlanFilteringEnabled); err != nil {
t.Fatal(err)
}
bridgeWithDefaultVlanFilteringName := "bar"
bridgeWIthDefaultVlanFiltering := &Bridge{LinkAttrs: LinkAttrs{Name: bridgeWithDefaultVlanFilteringName}}
if err := LinkAdd(bridgeWIthDefaultVlanFiltering); err != nil {
t.Fatal(err)
}
retrievedBridge, err = LinkByName(bridgeWithDefaultVlanFilteringName)
if err != nil {
t.Fatal(err)
}
retrievedVlanFilteringState = *retrievedBridge.(*Bridge).VlanFiltering
if retrievedVlanFilteringState != false {
t.Fatalf("expected %t got %t", false, retrievedVlanFilteringState)
}
if err := LinkDel(bridgeWIthDefaultVlanFiltering); err != nil {
t.Fatal(err)
}
}
func TestLinkSubscribeWithProtinfo(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
master := &Bridge{LinkAttrs: LinkAttrs{Name: "foo"}}
if err := LinkAdd(master); err != nil {
t.Fatal(err)
}
slave := &Veth{
LinkAttrs: LinkAttrs{
Name: "bar",
TxQLen: testTxQLen,
MTU: 1400,
MasterIndex: master.Attrs().Index,
},
PeerName: "bar-peer",
}
if err := LinkAdd(slave); err != nil {
t.Fatal(err)
}
ch := make(chan LinkUpdate)
done := make(chan struct{})
defer close(done)
if err := LinkSubscribe(ch, done); err != nil {
t.Fatal(err)
}
if err := LinkSetHairpin(slave, true); err != nil {
t.Fatal(err)
}
select {
case update := <-ch:
if !(update.Attrs().Name == "bar" && update.Attrs().Protinfo != nil &&
update.Attrs().Protinfo.Hairpin) {
t.Fatal("Hairpin update not received as expected")
}
case <-time.After(time.Minute):
t.Fatal("Hairpin update timed out")
}
if err := LinkDel(slave); err != nil {
t.Fatal(err)
}
if err := LinkDel(master); err != nil {
t.Fatal(err)
}
}
func testGTPLink(t *testing.T) *GTP {
conn1, err := net.ListenUDP("udp", &net.UDPAddr{
IP: net.ParseIP("0.0.0.0"),
Port: 3386,
})
if err != nil {
t.Fatal(err)
}
conn2, err := net.ListenUDP("udp", &net.UDPAddr{
IP: net.ParseIP("0.0.0.0"),
Port: 2152,
})
if err != nil {
t.Fatal(err)
}
fd1, _ := conn1.File()
fd2, _ := conn2.File()
return &GTP{
LinkAttrs: LinkAttrs{
Name: "gtp0",
},
FD0: int(fd1.Fd()),
FD1: int(fd2.Fd()),
}
}
func TestLinkAddDelGTP(t *testing.T) {
tearDown := setUpNetlinkTestWithKModule(t, "gtp")
defer tearDown()
gtp := testGTPLink(t)
testLinkAddDel(t, gtp)
}
func TestLinkAddDelXfrmi(t *testing.T) {
minKernelRequired(t, 4, 19)
defer setUpNetlinkTest(t)()
lo, _ := LinkByName("lo")
testLinkAddDel(t, &Xfrmi{
LinkAttrs: LinkAttrs{Name: "xfrm123", ParentIndex: lo.Attrs().Index},
Ifid: 123})
}
func TestLinkAddDelXfrmiNoId(t *testing.T) {
minKernelRequired(t, 4, 19)
defer setUpNetlinkTest(t)()
lo, _ := LinkByName("lo")
err := LinkAdd(&Xfrmi{
LinkAttrs: LinkAttrs{Name: "xfrm0", ParentIndex: lo.Attrs().Index}})
if !errors.Is(err, unix.EINVAL) {
t.Errorf("Error returned expected to be EINVAL")
}
}
func TestLinkByNameWhenLinkIsNotFound(t *testing.T) {
_, err := LinkByName("iammissing")
if err == nil {
t.Fatal("Link not expected to found")
}
_, ok := err.(LinkNotFoundError)
if !ok {
t.Errorf("Error returned expected to of LinkNotFoundError type: %v", err)
}
}
func TestLinkByAliasWhenLinkIsNotFound(t *testing.T) {
_, err := LinkByAlias("iammissing")
if err == nil {
t.Fatal("Link not expected to found")
}
_, ok := err.(LinkNotFoundError)
if !ok {
t.Errorf("Error returned expected to of LinkNotFoundError type: %v", err)
}
}
func TestLinkAddDelTuntap(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
// Mount sysfs so that sysfs gets the namespace tag of the current network namespace
// This is necessary so that /sys shows the network interfaces of the current namespace.
if err := syscall.Mount("sysfs", "/sys", "sysfs", syscall.MS_RDONLY, ""); err != nil {
t.Fatal("Cannot mount sysfs")
}
defer func() {
if err := syscall.Unmount("/sys", 0); err != nil {
t.Fatal("Cannot umount /sys")
}
}()
testLinkAddDel(t, &Tuntap{
LinkAttrs: LinkAttrs{Name: "foo"},
Mode: TUNTAP_MODE_TAP})
}
func TestLinkAddDelTuntapMq(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
if err := syscall.Mount("sysfs", "/sys", "sysfs", syscall.MS_RDONLY, ""); err != nil {
t.Fatal("Cannot mount sysfs")
}
defer func() {
if err := syscall.Unmount("/sys", 0); err != nil {
t.Fatal("Cannot umount /sys")
}
}()
testLinkAddDel(t, &Tuntap{
LinkAttrs: LinkAttrs{Name: "foo"},
Mode: TUNTAP_MODE_TAP,
Queues: 4})
testLinkAddDel(t, &Tuntap{
LinkAttrs: LinkAttrs{Name: "foo"},
Mode: TUNTAP_MODE_TAP,
Queues: 4,
Flags: TUNTAP_MULTI_QUEUE_DEFAULTS | TUNTAP_VNET_HDR})
}
func TestLinkAddDelTuntapOwnerGroup(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
if err := syscall.Mount("sysfs", "/sys", "sysfs", syscall.MS_RDONLY, ""); err != nil {
t.Fatal("Cannot mount sysfs")
}
defer func() {
if err := syscall.Unmount("/sys", 0); err != nil {
t.Fatal("Cannot umount /sys")
}
}()
testLinkAddDel(t, &Tuntap{
LinkAttrs: LinkAttrs{Name: "foo"},
Mode: TUNTAP_MODE_TAP,
Owner: 0,
Group: 0,
})
}
func TestVethPeerIndex(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
const (
vethPeer1 = "vethOne"
vethPeer2 = "vethTwo"
)
link := &Veth{
LinkAttrs: LinkAttrs{
Name: vethPeer1,
MTU: 1500,
Flags: net.FlagUp,
},
PeerName: vethPeer2,
}
if err := LinkAdd(link); err != nil {
t.Fatal(err)
}
linkOne, err := LinkByName("vethOne")
if err != nil {
t.Fatal(err)
}
linkTwo, err := LinkByName("vethTwo")
if err != nil {
t.Fatal(err)
}
peerIndexOne, err := VethPeerIndex(&Veth{LinkAttrs: *linkOne.Attrs()})
if err != nil {
t.Fatal(err)
}
peerIndexTwo, err := VethPeerIndex(&Veth{LinkAttrs: *linkTwo.Attrs()})
if err != nil {
t.Fatal(err)
}
if peerIndexOne != linkTwo.Attrs().Index {
t.Errorf("VethPeerIndex(%s) mismatch %d != %d", linkOne.Attrs().Name, peerIndexOne, linkTwo.Attrs().Index)
}
if peerIndexTwo != linkOne.Attrs().Index {
t.Errorf("VethPeerIndex(%s) mismatch %d != %d", linkTwo.Attrs().Name, peerIndexTwo, linkOne.Attrs().Index)
}
}
func TestLinkSlaveBond(t *testing.T) {
minKernelRequired(t, 3, 13)
tearDown := setUpNetlinkTest(t)
defer tearDown()
const (
bondName = "foo"
slaveName = "fooFoo"
)
bond := NewLinkBond(LinkAttrs{Name: bondName})
bond.Mode = BOND_MODE_BALANCE_RR
if err := LinkAdd(bond); err != nil {
t.Fatal(err)
}
defer LinkDel(bond)
slaveDummy := &Dummy{LinkAttrs{Name: slaveName}}
if err := LinkAdd(slaveDummy); err != nil {
t.Fatal(err)
}
defer LinkDel(slaveDummy)
if err := LinkSetBondSlave(slaveDummy, bond); err != nil {
t.Fatal(err)
}
slaveLink, err := LinkByName(slaveName)
if err != nil {
t.Fatal(err)
}
slave := slaveLink.Attrs().Slave
if slave == nil {
t.Errorf("for %s expected slave is not nil.", slaveName)
}
if slaveType := slave.SlaveType(); slaveType != "bond" {
t.Errorf("for %s expected slave type is 'bond', but '%s'", slaveName, slaveType)
}
}
func TestLinkSetBondSlaveQueueId(t *testing.T) {
minKernelRequired(t, 3, 13)
tearDown := setUpNetlinkTest(t)
defer tearDown()
const (
bondName = "foo"
slave1Name = "fooFoo"
)
bond := NewLinkBond(LinkAttrs{Name: bondName})
if err := LinkAdd(bond); err != nil {
t.Fatal(err)
}
defer LinkDel(bond)
slave := &Dummy{LinkAttrs{Name: slave1Name}}
if err := LinkAdd(slave); err != nil {
t.Fatal(err)
}
defer LinkDel(slave)
if err := LinkSetBondSlave(slave, bond); err != nil {
t.Fatal(err)
}
if err := pkgHandle.LinkSetBondSlaveQueueId(slave, 1); err != nil {
t.Fatal(err)
}
}
func TestLinkSetBondSlave(t *testing.T) {
minKernelRequired(t, 3, 13)
tearDown := setUpNetlinkTest(t)
defer tearDown()
const (
bondName = "foo"
slaveOneName = "fooFoo"
slaveTwoName = "fooBar"
)
bond := NewLinkBond(LinkAttrs{Name: bondName})
bond.Mode = StringToBondModeMap["802.3ad"]
bond.AdSelect = BondAdSelect(BOND_AD_SELECT_BANDWIDTH)
bond.AdActorSysPrio = 1
bond.AdUserPortKey = 1
bond.AdActorSystem, _ = net.ParseMAC("06:aa:bb:cc:dd:ee")
if err := LinkAdd(bond); err != nil {
t.Fatal(err)
}
bondLink, err := LinkByName(bondName)
if err != nil {
t.Fatal(err)
}
defer LinkDel(bondLink)
if err := LinkAdd(&Dummy{LinkAttrs{Name: slaveOneName}}); err != nil {
t.Fatal(err)
}
slaveOneLink, err := LinkByName(slaveOneName)
if err != nil {
t.Fatal(err)
}
defer LinkDel(slaveOneLink)
if err := LinkAdd(&Dummy{LinkAttrs{Name: slaveTwoName}}); err != nil {
t.Fatal(err)
}
slaveTwoLink, err := LinkByName(slaveTwoName)
if err != nil {
t.Fatal(err)
}
defer LinkDel(slaveTwoLink)
if err := LinkSetBondSlave(slaveOneLink, &Bond{LinkAttrs: *bondLink.Attrs()}); err != nil {
t.Fatal(err)
}
if err := LinkSetBondSlave(slaveTwoLink, &Bond{LinkAttrs: *bondLink.Attrs()}); err != nil {
t.Fatal(err)
}
// Update info about interfaces
slaveOneLink, err = LinkByName(slaveOneName)
if err != nil {
t.Fatal(err)
}
slaveTwoLink, err = LinkByName(slaveTwoName)
if err != nil {
t.Fatal(err)
}
if slaveOneLink.Attrs().MasterIndex != bondLink.Attrs().Index {
t.Errorf("For %s expected %s to be master", slaveOneLink.Attrs().Name, bondLink.Attrs().Name)
}
if slaveTwoLink.Attrs().MasterIndex != bondLink.Attrs().Index {
t.Errorf("For %s expected %s to be master", slaveTwoLink.Attrs().Name, bondLink.Attrs().Name)
}
}
func testFailover(t *testing.T, slaveName, bondName string) {
slaveLink, err := LinkByName(slaveName)
if err != nil {
t.Fatal(err)
}
bondLink, err := LinkByName(bondName)
if err != nil {
t.Fatal(err)
}
err = LinkSetBondSlaveActive(slaveLink, &Bond{LinkAttrs: *bondLink.Attrs()})
if err != nil {
t.Errorf("set slave link active failed: %v", err)
return
}
bondLink, err = LinkByName(bondName)
if err != nil {
t.Fatal(err)
}
bond := bondLink.(*Bond)
if bond.ActiveSlave != slaveLink.Attrs().Index {
t.Errorf("the current active slave %d is not expected as %d", bond.ActiveSlave, slaveLink.Attrs().Index)
}
}
func TestLinkFailover(t *testing.T) {
minKernelRequired(t, 3, 13)
tearDown := setUpNetlinkTest(t)
defer tearDown()
const (
bondName = "foo"
slaveOneName = "fooFoo"
slaveTwoName = "fooBar"
)
bond := NewLinkBond(LinkAttrs{Name: bondName})
bond.Mode = StringToBondModeMap["active-backup"]
bond.Miimon = 100
if err := LinkAdd(bond); err != nil {
t.Fatal(err)
}
bondLink, err := LinkByName(bondName)
if err != nil {
t.Fatal(err)
}
defer LinkDel(bondLink)
if err := LinkAdd(&Dummy{LinkAttrs{Name: slaveOneName}}); err != nil {
t.Fatal(err)
}
slaveOneLink, err := LinkByName(slaveOneName)
if err != nil {
t.Fatal(err)
}
defer LinkDel(slaveOneLink)
if err := LinkAdd(&Dummy{LinkAttrs{Name: slaveTwoName}}); err != nil {
t.Fatal(err)
}
slaveTwoLink, err := LinkByName(slaveTwoName)
if err != nil {
t.Fatal(err)
}
defer LinkDel(slaveTwoLink)
if err := LinkSetBondSlave(slaveOneLink, &Bond{LinkAttrs: *bondLink.Attrs()}); err != nil {
t.Fatal(err)
}
if err := LinkSetBondSlave(slaveTwoLink, &Bond{LinkAttrs: *bondLink.Attrs()}); err != nil {
t.Fatal(err)
}
testFailover(t, slaveOneName, bondName)
testFailover(t, slaveTwoName, bondName)
testFailover(t, slaveTwoName, bondName)
// del slave from bond
slaveOneLink, err = LinkByName(slaveOneName)
if err != nil {
t.Fatal(err)
}
err = LinkDelBondSlave(slaveOneLink, &Bond{LinkAttrs: *bondLink.Attrs()})
if err != nil {
t.Errorf("Remove slave %s from bond failed: %v", slaveOneName, err)
}
slaveOneLink, err = LinkByName(slaveOneName)
if err != nil {
t.Fatal(err)
}
if slaveOneLink.Attrs().MasterIndex > 0 {
t.Errorf("The nic %s is still a slave of %d", slaveOneName, slaveOneLink.Attrs().MasterIndex)
}
}
func TestLinkSetAllmulticast(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo"}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if err := LinkSetUp(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if err := LinkSetAllmulticastOn(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().Allmulti != 1 {
t.Fatal("IFF_ALLMULTI was not set")
}
if err := LinkSetAllmulticastOff(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().Allmulti != 0 {
t.Fatal("IFF_ALLMULTI is still set")
}
}
func TestLinkSetMulticast(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
iface := &Veth{LinkAttrs: LinkAttrs{Name: "foo"}, PeerName: "bar"}
if err := LinkAdd(iface); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if err := LinkSetUp(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if err := LinkSetMulticastOn(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().Multi != 1 {
t.Fatal("IFF_MULTICAST was not set")
}
if err := LinkSetMulticastOff(link); err != nil {
t.Fatal(err)
}
link, err = LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if link.Attrs().Multi != 0 {
t.Fatal("IFF_MULTICAST is still set")
}
}
func TestLinkSetMacvlanMode(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
const (
parentName = "foo"
macvlanName = "fooFoo"
macvtapName = "fooBar"
)
parent := &Dummy{LinkAttrs{Name: parentName}}
if err := LinkAdd(parent); err != nil {
t.Fatal(err)
}
defer LinkDel(parent)
testMacvlanMode := func(link Link, mode MacvlanMode) {
if err := LinkSetMacvlanMode(link, mode); err != nil {
t.Fatal(err)
}
name := link.Attrs().Name
result, err := LinkByName(name)
if err != nil {
t.Fatal(err)
}
var actual MacvlanMode
switch l := result.(type) {
case *Macvlan:
actual = l.Mode
case *Macvtap:
actual = l.Macvlan.Mode
}
if actual != mode {
t.Fatalf("expected %v got %v for %+v", mode, actual, link)
}
}
macvlan := &Macvlan{
LinkAttrs: LinkAttrs{Name: macvlanName, ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_BRIDGE,
}
if err := LinkAdd(macvlan); err != nil {
t.Fatal(err)
}
defer LinkDel(macvlan)
testMacvlanMode(macvlan, MACVLAN_MODE_VEPA)
testMacvlanMode(macvlan, MACVLAN_MODE_PRIVATE)
testMacvlanMode(macvlan, MACVLAN_MODE_SOURCE)
testMacvlanMode(macvlan, MACVLAN_MODE_BRIDGE)
macvtap := &Macvtap{
Macvlan: Macvlan{
LinkAttrs: LinkAttrs{Name: macvtapName, ParentIndex: parent.Attrs().Index},
Mode: MACVLAN_MODE_BRIDGE,
},
}
if err := LinkAdd(macvtap); err != nil {
t.Fatal(err)
}
defer LinkDel(macvtap)
testMacvlanMode(macvtap, MACVLAN_MODE_VEPA)
testMacvlanMode(macvtap, MACVLAN_MODE_PRIVATE)
testMacvlanMode(macvtap, MACVLAN_MODE_SOURCE)
testMacvlanMode(macvtap, MACVLAN_MODE_BRIDGE)
}
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