mirror of https://github.com/vishvananda/netlink
684 lines
15 KiB
Go
684 lines
15 KiB
Go
//go:build linux
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// +build linux
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package netlink
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import (
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"reflect"
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"testing"
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)
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func SafeQdiscList(link Link) ([]Qdisc, error) {
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qdiscs, err := QdiscList(link)
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if err != nil {
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return nil, err
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}
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result := []Qdisc{}
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for _, qdisc := range qdiscs {
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// fmt.Printf("%+v\n", qdisc)
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// filter default qdisc created by kernel when custom one deleted
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attrs := qdisc.Attrs()
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if attrs.Handle == HANDLE_NONE && attrs.Parent == HANDLE_ROOT {
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continue
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}
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result = append(result, qdisc)
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}
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return result, nil
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}
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func SafeClassList(link Link, handle uint32) ([]Class, error) {
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classes, err := ClassList(link, handle)
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if err != nil {
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return nil, err
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}
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result := []Class{}
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for ind := range classes {
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double := false
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for _, class2 := range classes[ind+1:] {
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if classes[ind].Attrs().Handle == class2.Attrs().Handle {
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double = true
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}
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}
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if !double {
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result = append(result, classes[ind])
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}
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}
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return result, nil
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}
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func testClassStats(this, that *ClassStatistics, t *testing.T) {
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ok := reflect.DeepEqual(this, that)
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if !ok {
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t.Fatalf("%#v is expected but it actually was %#v", that, this)
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}
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}
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func TestClassAddDel(t *testing.T) {
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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if err := LinkAdd(&Ifb{LinkAttrs{Name: "foo"}}); err != nil {
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t.Fatal(err)
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}
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if err := LinkAdd(&Ifb{LinkAttrs{Name: "bar"}}); 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 err := LinkSetUp(link); err != nil {
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t.Fatal(err)
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}
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attrs := QdiscAttrs{
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LinkIndex: link.Attrs().Index,
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Handle: MakeHandle(0xffff, 0),
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Parent: HANDLE_ROOT,
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}
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qdisc := NewHtb(attrs)
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if err := QdiscAdd(qdisc); err != nil {
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t.Fatal(err)
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}
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qdiscs, err := SafeQdiscList(link)
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if err != nil {
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t.Fatal(err)
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}
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if len(qdiscs) != 1 {
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t.Fatal("Failed to add qdisc")
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}
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_, ok := qdiscs[0].(*Htb)
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if !ok {
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t.Fatal("Qdisc is the wrong type")
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}
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classattrs := ClassAttrs{
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LinkIndex: link.Attrs().Index,
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Parent: MakeHandle(0xffff, 0),
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Handle: MakeHandle(0xffff, 2),
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}
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htbclassattrs := HtbClassAttrs{
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Rate: 1234000,
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Cbuffer: 1690,
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Prio: 2,
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Quantum: 1000,
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}
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class := NewHtbClass(classattrs, htbclassattrs)
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if err := ClassAdd(class); err != nil {
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t.Fatal(err)
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}
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classes, err := SafeClassList(link, MakeHandle(0xffff, 0))
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if err != nil {
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t.Fatal(err)
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}
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if len(classes) != 1 {
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t.Fatal("Failed to add class")
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}
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htb, ok := classes[0].(*HtbClass)
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if !ok {
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t.Fatal("Class is the wrong type")
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}
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if htb.Rate != class.Rate {
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t.Fatal("Rate doesn't match")
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}
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if htb.Ceil != class.Ceil {
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t.Fatal("Ceil doesn't match")
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}
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if htb.Buffer != class.Buffer {
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t.Fatal("Buffer doesn't match")
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}
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if htb.Cbuffer != class.Cbuffer {
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t.Fatal("Cbuffer doesn't match")
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}
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if htb.Prio != class.Prio {
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t.Fatal("Prio doesn't match")
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}
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if htb.Quantum != class.Quantum {
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t.Fatal("Quantum doesn't match")
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}
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testClassStats(htb.ClassAttrs.Statistics, NewClassStatistics(), t)
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qattrs := QdiscAttrs{
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LinkIndex: link.Attrs().Index,
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Handle: MakeHandle(0x2, 0),
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Parent: MakeHandle(0xffff, 2),
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}
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nattrs := NetemQdiscAttrs{
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Latency: 20000,
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Loss: 23.4,
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Duplicate: 14.3,
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LossCorr: 8.34,
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Jitter: 1000,
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DelayCorr: 12.3,
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ReorderProb: 23.4,
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CorruptProb: 10.0,
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CorruptCorr: 10,
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Rate64: 10 * 1024 * 1024,
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}
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qdiscnetem := NewNetem(qattrs, nattrs)
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if err := QdiscAdd(qdiscnetem); err != nil {
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t.Fatal(err)
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}
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qdiscs, err = SafeQdiscList(link)
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if err != nil {
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t.Fatal(err)
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}
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if len(qdiscs) != 2 {
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t.Fatal("Failed to add qdisc")
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}
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_, ok = qdiscs[0].(*Htb)
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if !ok {
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t.Fatal("Qdisc is the wrong type")
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}
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netem, ok := qdiscs[1].(*Netem)
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if !ok {
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t.Fatal("Qdisc is the wrong type")
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}
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// Compare the record we got from the list with the one we created
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if netem.Loss != qdiscnetem.Loss {
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t.Fatal("Loss does not match")
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}
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if netem.Latency != qdiscnetem.Latency {
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t.Fatal("Latency does not match")
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}
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if netem.CorruptProb != qdiscnetem.CorruptProb {
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t.Fatal("CorruptProb does not match")
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}
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if netem.Jitter != qdiscnetem.Jitter {
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t.Fatal("Jitter does not match")
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}
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if netem.LossCorr != qdiscnetem.LossCorr {
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t.Fatal("Loss does not match")
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}
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if netem.DuplicateCorr != qdiscnetem.DuplicateCorr {
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t.Fatal("DuplicateCorr does not match")
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}
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if netem.Rate64 != qdiscnetem.Rate64 {
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t.Fatalf("Rate64 does not match. Expected %d, got %d", netem.Rate64, qdiscnetem.Rate64)
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}
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// Deletion
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// automatically removes netem qdisc
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if err := ClassDel(class); err != nil {
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t.Fatal(err)
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}
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classes, err = SafeClassList(link, MakeHandle(0xffff, 0))
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if err != nil {
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t.Fatal(err)
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}
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if len(classes) != 0 {
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t.Fatal("Failed to remove class")
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}
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if err := QdiscDel(qdisc); err != nil {
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t.Fatal(err)
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}
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qdiscs, err = SafeQdiscList(link)
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if err != nil {
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t.Fatal(err)
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}
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if len(qdiscs) != 0 {
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t.Fatal("Failed to remove qdisc")
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}
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}
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func TestHtbClassAddHtbClassChangeDel(t *testing.T) {
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/**
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This test first set up a interface ans set up a Htb qdisc
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A HTB class is attach to it and a Netem qdisc is attached to that class
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Next, we test changing the HTB class in place and confirming the Netem is
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still attached. We also check that invoting ClassChange with a non-existing
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class will fail.
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Finally, we test ClassReplace. We confirm it correctly behave like
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ClassChange when the parent/handle pair exists and that it will create a
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new class if the handle is modified.
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*/
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tearDown := setUpNetlinkTest(t)
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defer tearDown()
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if err := LinkAdd(&Ifb{LinkAttrs{Name: "foo"}}); 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 err := LinkSetUp(link); err != nil {
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t.Fatal(err)
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}
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attrs := QdiscAttrs{
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LinkIndex: link.Attrs().Index,
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Handle: MakeHandle(0xffff, 0),
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Parent: HANDLE_ROOT,
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}
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qdisc := NewHtb(attrs)
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if err := QdiscAdd(qdisc); err != nil {
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t.Fatal(err)
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}
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qdiscs, err := SafeQdiscList(link)
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if err != nil {
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t.Fatal(err)
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}
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if len(qdiscs) != 1 {
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t.Fatal("Failed to add qdisc")
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}
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_, ok := qdiscs[0].(*Htb)
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if !ok {
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t.Fatal("Qdisc is the wrong type")
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}
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classattrs := ClassAttrs{
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LinkIndex: link.Attrs().Index,
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Parent: MakeHandle(0xffff, 0),
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Handle: MakeHandle(0xffff, 2),
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}
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htbclassattrs := HtbClassAttrs{
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Rate: uint64(1<<32) + 10,
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Ceil: uint64(1<<32) + 20,
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Cbuffer: 1690,
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}
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class := NewHtbClass(classattrs, htbclassattrs)
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if err := ClassAdd(class); err != nil {
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t.Fatal(err)
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}
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classes, err := SafeClassList(link, 0)
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if err != nil {
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t.Fatal(err)
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}
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if len(classes) != 1 {
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t.Fatal("Failed to add class")
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}
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htb, ok := classes[0].(*HtbClass)
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if !ok {
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t.Fatal("Class is the wrong type")
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}
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testClassStats(htb.ClassAttrs.Statistics, NewClassStatistics(), t)
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qattrs := QdiscAttrs{
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LinkIndex: link.Attrs().Index,
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Handle: MakeHandle(0x2, 0),
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Parent: MakeHandle(0xffff, 2),
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}
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nattrs := NetemQdiscAttrs{
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Latency: 20000,
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Loss: 23.4,
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Duplicate: 14.3,
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LossCorr: 8.34,
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Jitter: 1000,
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DelayCorr: 12.3,
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ReorderProb: 23.4,
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CorruptProb: 10.0,
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CorruptCorr: 10,
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}
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qdiscnetem := NewNetem(qattrs, nattrs)
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if err := QdiscAdd(qdiscnetem); err != nil {
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t.Fatal(err)
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}
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qdiscs, err = SafeQdiscList(link)
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if err != nil {
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t.Fatal(err)
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}
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if len(qdiscs) != 2 {
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t.Fatal("Failed to add qdisc")
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}
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_, ok = qdiscs[1].(*Netem)
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if !ok {
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t.Fatal("Qdisc is the wrong type")
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}
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// Change
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// For change to work, the handle and parent cannot be changed.
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// First, test it fails if we change the Handle.
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oldHandle := classattrs.Handle
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classattrs.Handle = MakeHandle(0xffff, 3)
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class = NewHtbClass(classattrs, htbclassattrs)
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if err := ClassChange(class); err == nil {
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t.Fatal("ClassChange should not work when using a different handle.")
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}
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// It should work with the same handle
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classattrs.Handle = oldHandle
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htbclassattrs.Rate = 4321000
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class = NewHtbClass(classattrs, htbclassattrs)
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if err := ClassChange(class); err != nil {
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t.Fatal(err)
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}
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classes, err = SafeClassList(link, MakeHandle(0xffff, 0))
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if err != nil {
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t.Fatal(err)
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}
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if len(classes) != 1 {
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t.Fatalf(
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"1 class expected, %d found",
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len(classes),
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)
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}
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htb, ok = classes[0].(*HtbClass)
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if !ok {
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t.Fatal("Class is the wrong type")
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}
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// Verify that the rate value has changed.
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if htb.Rate != class.Rate {
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t.Fatal("Rate did not get changed while changing the class.")
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}
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// Check that we still have the netem child qdisc
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qdiscs, err = SafeQdiscList(link)
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if err != nil {
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t.Fatal(err)
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}
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if len(qdiscs) != 2 {
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t.Fatalf("2 qdisc expected, %d found", len(qdiscs))
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}
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_, ok = qdiscs[0].(*Htb)
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if !ok {
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t.Fatal("Qdisc is the wrong type")
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}
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_, ok = qdiscs[1].(*Netem)
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if !ok {
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t.Fatal("Qdisc is the wrong type")
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}
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// Replace
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// First replace by keeping the same handle, class will be changed.
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// Then, replace by providing a new handle, n new class will be created.
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// Replace acting as Change
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class = NewHtbClass(classattrs, htbclassattrs)
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if err := ClassReplace(class); err != nil {
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t.Fatal("Failed to replace class that is existing.")
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}
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classes, err = SafeClassList(link, MakeHandle(0xffff, 0))
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if err != nil {
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t.Fatal(err)
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}
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if len(classes) != 1 {
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t.Fatalf(
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"1 class expected, %d found",
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len(classes),
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)
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}
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htb, ok = classes[0].(*HtbClass)
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if !ok {
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t.Fatal("Class is the wrong type")
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}
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// Verify that the rate value has changed.
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if htb.Rate != class.Rate {
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t.Fatal("Rate did not get changed while changing the class.")
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}
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// It should work with the same handle
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classattrs.Handle = MakeHandle(0xffff, 3)
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class = NewHtbClass(classattrs, htbclassattrs)
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if err := ClassReplace(class); err != nil {
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t.Fatal(err)
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}
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classes, err = SafeClassList(link, MakeHandle(0xffff, 0))
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if err != nil {
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t.Fatal(err)
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}
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if len(classes) != 2 {
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t.Fatalf(
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"2 classes expected, %d found",
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len(classes),
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)
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}
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htb, ok = classes[1].(*HtbClass)
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if !ok {
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t.Fatal("Class is the wrong type")
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}
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// Verify that the rate value has changed.
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if htb.Rate != class.Rate {
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t.Fatal("Rate did not get changed while changing the class.")
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}
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// Deletion
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for _, class := range classes {
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if err := ClassDel(class); err != nil {
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t.Fatal(err)
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}
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}
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classes, err = SafeClassList(link, MakeHandle(0xffff, 0))
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if err != nil {
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t.Fatal(err)
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}
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if len(classes) != 0 {
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t.Fatal("Failed to remove class")
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}
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if err := QdiscDel(qdisc); err != nil {
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t.Fatal(err)
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}
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qdiscs, err = SafeQdiscList(link)
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if err != nil {
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t.Fatal(err)
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}
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if len(qdiscs) != 0 {
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t.Fatal("Failed to remove qdisc")
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}
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}
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func TestClassHfsc(t *testing.T) {
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// New network namespace for tests
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tearDown := setUpNetlinkTestWithKModule(t, "sch_hfsc")
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defer tearDown()
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// Set up testing link and check if succeeded
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if err := LinkAdd(&Ifb{LinkAttrs{Name: "foo"}}); 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 err := LinkSetUp(link); err != nil {
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t.Fatal(err)
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}
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// Adding HFSC qdisc
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qdiscAttrs := QdiscAttrs{
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LinkIndex: link.Attrs().Index,
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Handle: MakeHandle(1, 0),
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Parent: HANDLE_ROOT,
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}
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hfscQdisc := NewHfsc(qdiscAttrs)
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hfscQdisc.Defcls = 2
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err = QdiscAdd(hfscQdisc)
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if err != nil {
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t.Fatal(err)
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}
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qdiscs, err := SafeQdiscList(link)
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if err != nil {
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t.Fatal(err)
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}
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if len(qdiscs) != 1 {
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t.Fatal("Failed to add qdisc")
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}
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_, ok := qdiscs[0].(*Hfsc)
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if !ok {
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t.Fatal("Qdisc is the wrong type")
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}
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// Adding some HFSC classes
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classAttrs := ClassAttrs{
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LinkIndex: link.Attrs().Index,
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Parent: MakeHandle(1, 0),
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Handle: MakeHandle(1, 1),
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}
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hfscClass := NewHfscClass(classAttrs)
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hfscClass.SetLS(5e6, 10, 5e6)
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err = ClassAdd(hfscClass)
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if err != nil {
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t.Fatal(err)
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}
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hfscClass2 := hfscClass
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hfscClass2.SetLS(0, 0, 0)
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hfscClass2.Attrs().Parent = MakeHandle(1, 1)
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hfscClass2.Attrs().Handle = MakeHandle(1, 2)
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hfscClass2.SetRsc(0, 0, 2e6)
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err = ClassAdd(hfscClass2)
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if err != nil {
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t.Fatal(err)
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}
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hfscClass3 := hfscClass
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hfscClass3.SetLS(0, 0, 0)
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hfscClass3.Attrs().Parent = MakeHandle(1, 1)
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hfscClass3.Attrs().Handle = MakeHandle(1, 3)
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err = ClassAdd(hfscClass3)
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if err != nil {
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t.Fatal(err)
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}
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// Check the classes
|
|
classes, err := SafeClassList(link, MakeHandle(1, 0))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if len(classes) != 4 {
|
|
t.Fatal("Failed to add classes")
|
|
}
|
|
for _, c := range classes {
|
|
class, ok := c.(*HfscClass)
|
|
if !ok {
|
|
t.Fatal("Wrong type of class")
|
|
}
|
|
if class.ClassAttrs.Handle == hfscClass.ClassAttrs.Handle {
|
|
if class.Fsc != hfscClass.Fsc {
|
|
t.Fatal("HfscClass FSC don't match")
|
|
}
|
|
if class.Usc != hfscClass.Usc {
|
|
t.Fatal("HfscClass USC don't match")
|
|
}
|
|
if class.Rsc != hfscClass.Rsc {
|
|
t.Fatal("HfscClass RSC don't match")
|
|
}
|
|
}
|
|
if class.ClassAttrs.Handle == hfscClass2.ClassAttrs.Handle {
|
|
if class.Fsc != hfscClass2.Fsc {
|
|
t.Fatal("HfscClass2 FSC don't match")
|
|
}
|
|
if class.Usc != hfscClass2.Usc {
|
|
t.Fatal("HfscClass2 USC don't match")
|
|
}
|
|
if class.Rsc != hfscClass2.Rsc {
|
|
t.Fatal("HfscClass2 RSC don't match")
|
|
}
|
|
}
|
|
if class.ClassAttrs.Handle == hfscClass3.ClassAttrs.Handle {
|
|
if class.Fsc != hfscClass3.Fsc {
|
|
t.Fatal("HfscClass3 FSC don't match")
|
|
}
|
|
if class.Usc != hfscClass3.Usc {
|
|
t.Fatal("HfscClass3 USC don't match")
|
|
}
|
|
if class.Rsc != hfscClass3.Rsc {
|
|
t.Fatal("HfscClass3 RSC don't match")
|
|
}
|
|
}
|
|
}
|
|
|
|
// Terminating the leafs with fq_codel qdiscs
|
|
fqcodelAttrs := QdiscAttrs{
|
|
LinkIndex: link.Attrs().Index,
|
|
Parent: MakeHandle(1, 2),
|
|
Handle: MakeHandle(2, 0),
|
|
}
|
|
fqcodel1 := NewFqCodel(fqcodelAttrs)
|
|
fqcodel1.ECN = 0
|
|
fqcodel1.Limit = 1200
|
|
fqcodel1.Flows = 65535
|
|
fqcodel1.Target = 5
|
|
|
|
err = QdiscAdd(fqcodel1)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
fqcodel2 := fqcodel1
|
|
fqcodel2.Attrs().Handle = MakeHandle(3, 0)
|
|
fqcodel2.Attrs().Parent = MakeHandle(1, 3)
|
|
|
|
err = QdiscAdd(fqcodel2)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Check the amount of qdiscs
|
|
qdiscs, _ = SafeQdiscList(link)
|
|
if len(qdiscs) != 3 {
|
|
t.Fatal("Failed to add qdisc")
|
|
}
|
|
for _, q := range qdiscs[1:] {
|
|
_, ok = q.(*FqCodel)
|
|
if !ok {
|
|
t.Fatal("Qdisc is the wrong type")
|
|
}
|
|
}
|
|
|
|
// removing a class
|
|
if err := ClassDel(hfscClass3); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
// Check the classes
|
|
classes, err = SafeClassList(link, MakeHandle(1, 0))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if len(classes) != 3 {
|
|
t.Fatal("Failed to delete classes")
|
|
}
|
|
// Check qdisc
|
|
qdiscs, _ = SafeQdiscList(link)
|
|
if len(qdiscs) != 2 {
|
|
t.Fatal("Failed to delete qdisc")
|
|
}
|
|
|
|
// Changing a class
|
|
hfscClass2.SetRsc(0, 0, 0)
|
|
hfscClass2.SetSC(5e6, 100, 1e6)
|
|
hfscClass2.SetUL(6e6, 50, 2e6)
|
|
hfscClass2.Attrs().Handle = MakeHandle(1, 8)
|
|
if err := ClassChange(hfscClass2); err == nil {
|
|
t.Fatal("Class change shouldn't work with a different handle")
|
|
}
|
|
hfscClass2.Attrs().Handle = MakeHandle(1, 2)
|
|
if err := ClassChange(hfscClass2); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// Replacing a class
|
|
// If the handle doesn't exist, create it
|
|
hfscClass2.SetSC(6e6, 100, 2e6)
|
|
hfscClass2.SetUL(8e6, 500, 4e6)
|
|
hfscClass2.Attrs().Handle = MakeHandle(1, 8)
|
|
if err := ClassReplace(hfscClass2); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
// If the handle exists, replace it
|
|
hfscClass.SetLS(5e6, 200, 1e6)
|
|
if err := ClassChange(hfscClass); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
}
|