725 lines
15 KiB
Go
725 lines
15 KiB
Go
package netlink
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import (
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"bytes"
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"net"
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"syscall"
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"testing"
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"time"
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"github.com/vishvananda/netns"
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)
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const (
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testTxQLen int = 100
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defaultTxQLen int = 1000
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)
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func testLinkAddDel(t *testing.T, link Link) {
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links, err := LinkList()
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if err != nil {
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t.Fatal(err)
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}
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num := len(links)
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if err := LinkAdd(link); err != nil {
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t.Fatal(err)
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}
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base := link.Attrs()
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result, err := LinkByName(base.Name)
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if err != nil {
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t.Fatal(err)
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}
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rBase := result.Attrs()
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if vlan, ok := link.(*Vlan); ok {
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other, ok := result.(*Vlan)
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if !ok {
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t.Fatal("Result of create is not a vlan")
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}
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if vlan.VlanId != other.VlanId {
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t.Fatal("Link.VlanId id doesn't match")
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}
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}
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if rBase.ParentIndex == 0 && base.ParentIndex != 0 {
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t.Fatal("Created link doesn't have a Parent but it should")
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} else if rBase.ParentIndex != 0 && base.ParentIndex == 0 {
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t.Fatal("Created link has a Parent but it shouldn't")
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} else if rBase.ParentIndex != 0 && base.ParentIndex != 0 {
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if rBase.ParentIndex != base.ParentIndex {
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t.Fatal("Link.ParentIndex doesn't match")
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}
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}
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if veth, ok := result.(*Veth); ok {
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if rBase.TxQLen != base.TxQLen {
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t.Fatalf("qlen is %d, should be %d", rBase.TxQLen, base.TxQLen)
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}
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if rBase.MTU != base.MTU {
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t.Fatalf("MTU is %d, should be %d", rBase.MTU, base.MTU)
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}
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if veth.PeerName != "" {
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var peer *Veth
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other, err := LinkByName(veth.PeerName)
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if err != nil {
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t.Fatalf("Peer %s not created", veth.PeerName)
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}
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if peer, ok = other.(*Veth); !ok {
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t.Fatalf("Peer %s is incorrect type", veth.PeerName)
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}
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if peer.TxQLen != testTxQLen {
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t.Fatalf("TxQLen of peer is %d, should be %d", peer.TxQLen, testTxQLen)
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}
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}
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}
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if vxlan, ok := link.(*Vxlan); ok {
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other, ok := result.(*Vxlan)
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if !ok {
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t.Fatal("Result of create is not a vxlan")
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}
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compareVxlan(t, vxlan, other)
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}
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if ipv, ok := link.(*IPVlan); ok {
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other, ok := result.(*IPVlan)
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if !ok {
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t.Fatal("Result of create is not a ipvlan")
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}
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if ipv.Mode != other.Mode {
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t.Fatalf("Got unexpected mode: %d, expected: %d", other.Mode, ipv.Mode)
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}
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}
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if macv, ok := link.(*Macvlan); ok {
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other, ok := result.(*Macvlan)
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if !ok {
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t.Fatal("Result of create is not a macvlan")
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}
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if macv.Mode != other.Mode {
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t.Fatalf("Got unexpected mode: %d, expected: %d", other.Mode, macv.Mode)
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}
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}
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if err = LinkDel(link); err != nil {
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t.Fatal(err)
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}
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links, err = LinkList()
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if err != nil {
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t.Fatal(err)
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}
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if len(links) != num {
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t.Fatal("Link not removed properly")
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}
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}
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func compareVxlan(t *testing.T, expected, actual *Vxlan) {
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if actual.VxlanId != expected.VxlanId {
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t.Fatal("Vxlan.VxlanId doesn't match")
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}
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if expected.SrcAddr != nil && !actual.SrcAddr.Equal(expected.SrcAddr) {
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t.Fatal("Vxlan.SrcAddr doesn't match")
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}
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if expected.Group != nil && !actual.Group.Equal(expected.Group) {
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t.Fatal("Vxlan.Group doesn't match")
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}
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if expected.TTL != -1 && actual.TTL != expected.TTL {
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t.Fatal("Vxlan.TTL doesn't match")
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}
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if expected.TOS != -1 && actual.TOS != expected.TOS {
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t.Fatal("Vxlan.TOS doesn't match")
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}
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if actual.Learning != expected.Learning {
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t.Fatal("Vxlan.Learning doesn't match")
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}
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if actual.Proxy != expected.Proxy {
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t.Fatal("Vxlan.Proxy doesn't match")
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}
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if actual.RSC != expected.RSC {
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t.Fatal("Vxlan.RSC doesn't match")
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}
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if actual.L2miss != expected.L2miss {
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t.Fatal("Vxlan.L2miss doesn't match")
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}
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if actual.L3miss != expected.L3miss {
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t.Fatal("Vxlan.L3miss doesn't match")
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}
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if actual.GBP != expected.GBP {
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t.Fatal("Vxlan.GBP doesn't match")
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}
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if expected.NoAge {
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if !actual.NoAge {
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t.Fatal("Vxlan.NoAge doesn't match")
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}
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} else if expected.Age > 0 && actual.Age != expected.Age {
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t.Fatal("Vxlan.Age doesn't match")
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}
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if expected.Limit > 0 && actual.Limit != expected.Limit {
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t.Fatal("Vxlan.Limit doesn't match")
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}
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if expected.Port > 0 && actual.Port != expected.Port {
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t.Fatal("Vxlan.Port doesn't match")
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}
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if expected.PortLow > 0 || expected.PortHigh > 0 {
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if actual.PortLow != expected.PortLow {
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t.Fatal("Vxlan.PortLow doesn't match")
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}
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if actual.PortHigh != expected.PortHigh {
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t.Fatal("Vxlan.PortHigh doesn't match")
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}
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}
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}
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func TestLinkAddDelDummy(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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testLinkAddDel(t, &Dummy{LinkAttrs{Name: "foo"}})
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}
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func TestLinkAddDelIfb(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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testLinkAddDel(t, &Ifb{LinkAttrs{Name: "foo"}})
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}
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func TestLinkAddDelBridge(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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testLinkAddDel(t, &Bridge{LinkAttrs{Name: "foo", MTU: 1400}})
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}
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func TestLinkAddDelVlan(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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parent := &Dummy{LinkAttrs{Name: "foo"}}
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if err := LinkAdd(parent); err != nil {
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t.Fatal(err)
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}
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testLinkAddDel(t, &Vlan{LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index}, 900})
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if err := LinkDel(parent); err != nil {
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t.Fatal(err)
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}
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}
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func TestLinkAddDelMacvlan(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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parent := &Dummy{LinkAttrs{Name: "foo"}}
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if err := LinkAdd(parent); err != nil {
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t.Fatal(err)
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}
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testLinkAddDel(t, &Macvlan{
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LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
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Mode: MACVLAN_MODE_PRIVATE,
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})
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if err := LinkDel(parent); err != nil {
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t.Fatal(err)
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}
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}
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func TestLinkAddDelMacvtap(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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parent := &Dummy{LinkAttrs{Name: "foo"}}
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if err := LinkAdd(parent); err != nil {
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t.Fatal(err)
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}
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testLinkAddDel(t, &Macvtap{
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Macvlan: Macvlan{
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LinkAttrs: LinkAttrs{Name: "bar", ParentIndex: parent.Attrs().Index},
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Mode: MACVLAN_MODE_PRIVATE,
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},
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})
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if err := LinkDel(parent); err != nil {
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t.Fatal(err)
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}
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}
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func TestLinkAddDelVeth(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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testLinkAddDel(t, &Veth{LinkAttrs{Name: "foo", TxQLen: testTxQLen, MTU: 1400}, "bar"})
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}
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func TestLinkAddVethWithDefaultTxQLen(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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la := NewLinkAttrs()
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la.Name = "foo"
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veth := &Veth{LinkAttrs: la, PeerName: "bar"}
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if err := LinkAdd(veth); err != nil {
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t.Fatal(err)
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}
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link, err := LinkByName("foo")
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if err != nil {
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t.Fatal(err)
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}
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if veth, ok := link.(*Veth); !ok {
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t.Fatalf("unexpected link type: %T", link)
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} else {
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if veth.TxQLen != defaultTxQLen {
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t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, defaultTxQLen)
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}
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}
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peer, err := LinkByName("bar")
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if err != nil {
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t.Fatal(err)
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}
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if veth, ok := peer.(*Veth); !ok {
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t.Fatalf("unexpected link type: %T", link)
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} else {
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if veth.TxQLen != defaultTxQLen {
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t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, defaultTxQLen)
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}
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}
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}
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func TestLinkAddVethWithZeroTxQLen(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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la := NewLinkAttrs()
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la.Name = "foo"
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la.TxQLen = 0
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veth := &Veth{LinkAttrs: la, PeerName: "bar"}
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if err := LinkAdd(veth); err != nil {
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t.Fatal(err)
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}
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link, err := LinkByName("foo")
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if err != nil {
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t.Fatal(err)
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}
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if veth, ok := link.(*Veth); !ok {
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t.Fatalf("unexpected link type: %T", link)
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} else {
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if veth.TxQLen != 0 {
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t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, 0)
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}
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}
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peer, err := LinkByName("bar")
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if err != nil {
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t.Fatal(err)
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}
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if veth, ok := peer.(*Veth); !ok {
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t.Fatalf("unexpected link type: %T", link)
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} else {
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if veth.TxQLen != 0 {
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t.Fatalf("TxQLen is %d, should be %d", veth.TxQLen, 0)
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}
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}
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}
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func TestLinkAddDummyWithTxQLen(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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la := NewLinkAttrs()
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la.Name = "foo"
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la.TxQLen = 1500
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dummy := &Dummy{LinkAttrs: la}
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if err := LinkAdd(dummy); err != nil {
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t.Fatal(err)
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}
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link, err := LinkByName("foo")
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if err != nil {
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t.Fatal(err)
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}
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if dummy, ok := link.(*Dummy); !ok {
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t.Fatalf("unexpected link type: %T", link)
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} else {
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if dummy.TxQLen != 1500 {
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t.Fatalf("TxQLen is %d, should be %d", dummy.TxQLen, 1500)
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}
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}
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}
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func TestLinkAddDelBridgeMaster(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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master := &Bridge{LinkAttrs{Name: "foo"}}
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if err := LinkAdd(master); err != nil {
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t.Fatal(err)
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}
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testLinkAddDel(t, &Dummy{LinkAttrs{Name: "bar", MasterIndex: master.Attrs().Index}})
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if err := LinkDel(master); err != nil {
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t.Fatal(err)
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}
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}
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func TestLinkSetUnsetResetMaster(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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master := &Bridge{LinkAttrs{Name: "foo"}}
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if err := LinkAdd(master); err != nil {
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t.Fatal(err)
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}
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newmaster := &Bridge{LinkAttrs{Name: "bar"}}
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if err := LinkAdd(newmaster); err != nil {
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t.Fatal(err)
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}
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slave := &Dummy{LinkAttrs{Name: "baz"}}
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if err := LinkAdd(slave); err != nil {
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t.Fatal(err)
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}
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if err := LinkSetMaster(slave, master); err != nil {
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t.Fatal(err)
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}
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link, err := LinkByName("baz")
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if err != nil {
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t.Fatal(err)
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}
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if link.Attrs().MasterIndex != master.Attrs().Index {
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t.Fatal("Master not set properly")
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}
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if err := LinkSetMaster(slave, newmaster); err != nil {
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t.Fatal(err)
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}
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link, err = LinkByName("baz")
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if err != nil {
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t.Fatal(err)
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}
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if link.Attrs().MasterIndex != newmaster.Attrs().Index {
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t.Fatal("Master not reset properly")
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}
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if err := LinkSetMaster(slave, nil); err != nil {
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t.Fatal(err)
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}
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link, err = LinkByName("baz")
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if err != nil {
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t.Fatal(err)
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}
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if link.Attrs().MasterIndex != 0 {
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t.Fatal("Master not unset properly")
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}
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if err := LinkDel(slave); err != nil {
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t.Fatal(err)
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}
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if err := LinkDel(newmaster); err != nil {
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t.Fatal(err)
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}
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if err := LinkDel(master); err != nil {
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t.Fatal(err)
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}
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}
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func TestLinkSetNs(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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basens, err := netns.Get()
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if err != nil {
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t.Fatal("Failed to get basens")
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}
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defer basens.Close()
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newns, err := netns.New()
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if err != nil {
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t.Fatal("Failed to create newns")
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}
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defer newns.Close()
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link := &Veth{LinkAttrs{Name: "foo"}, "bar"}
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if err := LinkAdd(link); err != nil {
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t.Fatal(err)
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}
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peer, err := LinkByName("bar")
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if err != nil {
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t.Fatal(err)
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}
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LinkSetNsFd(peer, int(basens))
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if err != nil {
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t.Fatal("Failed to set newns for link")
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}
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_, err = LinkByName("bar")
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if err == nil {
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t.Fatal("Link bar is still in newns")
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}
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err = netns.Set(basens)
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if err != nil {
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t.Fatal("Failed to set basens")
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}
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peer, err = LinkByName("bar")
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if err != nil {
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t.Fatal("Link is not in basens")
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}
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if err := LinkDel(peer); err != nil {
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t.Fatal(err)
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}
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err = netns.Set(newns)
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if err != nil {
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t.Fatal("Failed to set newns")
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}
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_, err = LinkByName("foo")
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if err == nil {
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t.Fatal("Other half of veth pair not deleted")
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}
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}
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func TestLinkAddDelVxlan(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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parent := &Dummy{
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LinkAttrs{Name: "foo"},
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}
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if err := LinkAdd(parent); err != nil {
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t.Fatal(err)
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}
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vxlan := Vxlan{
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LinkAttrs: LinkAttrs{
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Name: "bar",
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},
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VxlanId: 10,
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VtepDevIndex: parent.Index,
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Learning: true,
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L2miss: true,
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L3miss: true,
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}
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testLinkAddDel(t, &vxlan)
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if err := LinkDel(parent); err != nil {
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t.Fatal(err)
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}
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}
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func TestLinkAddDelIPVlanL2(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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parent := &Dummy{LinkAttrs{Name: "foo"}}
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if err := LinkAdd(parent); err != nil {
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t.Fatal(err)
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}
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ipv := IPVlan{
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LinkAttrs: LinkAttrs{
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Name: "bar",
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ParentIndex: parent.Index,
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},
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Mode: IPVLAN_MODE_L2,
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}
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testLinkAddDel(t, &ipv)
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}
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func TestLinkAddDelIPVlanL3(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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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 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!")
|
|
}
|
|
|
|
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!")
|
|
}
|
|
}
|
|
|
|
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&syscall.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"}
|
|
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")
|
|
}
|
|
}
|