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attributeTcMsg_test.go
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attributeTcMsg_test.go
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package tc
import (
"errors"
"testing"
"github.com/florianl/go-tc/internal/unix"
"github.com/google/go-cmp/cmp"
)
func generatePfifo(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "pfifo"})
pfifo, _ := marshalStruct(&FifoOpt{Limit: 123})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaOptions, Data: pfifo})
stats, _ := marshalStruct(&Stats{
Bytes: 123,
Packets: 321,
Drops: 0,
Overlimits: 42,
})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaStats, Data: stats})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func generateHtb(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "htb"})
htbOption, _ := marshalHtb(&Htb{
DirectQlen: uint32Ptr(123),
Rate64: uint64Ptr(234),
Ceil64: uint64Ptr(345),
})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaOptions, Data: htbOption})
htbXStats, _ := marshalStruct(&HtbXStats{
Lends: 2,
Borrows: 3,
Giants: 4,
Tokens: 5,
CTokens: 6,
})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaXstats, Data: htbXStats})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func generateClsact(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "clsact"})
options = append(options, tcOption{Interpretation: vtUint8, Type: tcaHwOffload, Data: uint8(96)})
options = append(options, tcOption{Interpretation: vtUint32, Type: tcaEgressBlock, Data: uint32(4919)})
options = append(options, tcOption{Interpretation: vtUint32, Type: tcaIngressBlock, Data: uint32(51966)})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaOptions, Data: []byte{}})
options = append(options, tcOption{Interpretation: vtUint32, Type: tcaChain, Data: uint32(42)})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func generateClsactStab(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "clsact"})
tmp, _ := marshalStab(&Stab{
Base: &SizeSpec{
CellLog: 42,
LinkLayer: 1,
MTU: 1492,
},
})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaStab, Data: tmp})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func generateMatchall(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "matchall"})
tmp, _ := marshalMatchall(&Matchall{
ClassID: uint32Ptr(22),
Flags: uint32Ptr(33),
})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaOptions, Data: tmp})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func generateNetem(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "netem"})
tmp, _ := marshalNetem(&Netem{Ecn: uint32Ptr(42)})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaOptions, Data: tmp})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func generateCake(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "cake"})
tmp, _ := marshalCake(&Cake{BaseRate: uint64Ptr(424242)})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaOptions, Data: tmp})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func generateQfq(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "qfq"})
tmp, _ := marshalQfq(&Qfq{Weight: uint32Ptr(1), Lmax: uint32Ptr(2)})
options = append(options, tcOption{Interpretation: vtBytes, Type: tcaOptions, Data: tmp})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func generateUnknown(t *testing.T) []byte {
t.Helper()
options := []tcOption{}
options = append(options, tcOption{Interpretation: vtString, Type: tcaKind, Data: "unknown"})
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("could not generate test data: %v", err)
}
return data
}
func TestExtractTcmsgAttributes(t *testing.T) {
tests := map[string]struct {
input []byte
expected *Attribute
err error
}{
"empty": {input: []byte{}, expected: &Attribute{}},
"unknown": {input: generateUnknown(t), expected: &Attribute{Kind: "unknown"}},
"clsact": {input: generateClsact(t), expected: &Attribute{
Kind: "clsact", HwOffload: uint8Ptr(0x60),
EgressBlock: uint32Ptr(0x1337), IngressBlock: uint32Ptr(0xcafe), Chain: uint32Ptr(42),
}},
"htb": {input: generateHtb(t), expected: &Attribute{
Kind: "htb",
XStats: &XStats{Htb: &HtbXStats{Lends: 0x02, Borrows: 0x03, Giants: 0x04, Tokens: 0x05, CTokens: 0x06}},
Htb: &Htb{DirectQlen: uint32Ptr(0x7b), Rate64: uint64Ptr(0xea), Ceil64: uint64Ptr(0x0159)},
}},
"pfifo": {input: generatePfifo(t), expected: &Attribute{
Kind: "pfifo",
Pfifo: &FifoOpt{Limit: 123}, Stats: &Stats{Bytes: 123, Packets: 321, Drops: 0, Overlimits: 42},
}},
"clsact+stab": {input: generateClsactStab(t), expected: &Attribute{
Kind: "clsact",
Stab: &Stab{Base: &SizeSpec{CellLog: 0x2a, LinkLayer: 0x01, MTU: 0x05d4}},
}},
"matchall": {input: generateMatchall(t), expected: &Attribute{
Kind: "matchall",
Matchall: &Matchall{ClassID: uint32Ptr(22), Flags: uint32Ptr(33)},
}},
"netem": {input: generateNetem(t), expected: &Attribute{
Kind: "netem",
Netem: &Netem{Ecn: uint32Ptr(42)},
}},
"cake": {input: generateCake(t), expected: &Attribute{
Kind: "cake",
Cake: &Cake{BaseRate: uint64Ptr(424242)},
}},
"qfq": {input: generateQfq(t), expected: &Attribute{
Kind: "qfq",
Qfq: &Qfq{Weight: uint32Ptr(1), Lmax: uint32Ptr(2)},
}},
}
for name, testcase := range tests {
t.Run(name, func(t *testing.T) {
value := &Attribute{}
if err := extractTcmsgAttributes(0xCAFE, testcase.input, value); err != nil {
if errors.Is(err, testcase.err) {
// we received the expected error. everything is fine
return
}
t.Fatalf("Received error '%v', but expected '%v'", err, testcase.err)
}
if testcase.err != nil {
t.Fatalf("Expected error '%v' but got none", testcase.err)
}
if diff := cmp.Diff(value, testcase.expected); diff != "" {
t.Fatalf("ExtractTcmsgAttributes missmatch (-want +got):\n%s", diff)
}
})
}
}
func TestExtractTCAOptions(t *testing.T) {
tests := map[string]struct {
kind string
data []byte
expected *Attribute
err error
}{
"clsact": {kind: "clsact", expected: &Attribute{}},
"clsactWithData": {kind: "clsact", data: []byte{0xde, 0xad, 0xc0, 0xde}, err: ErrInvalidArg},
"ingress": {kind: "ingress", expected: &Attribute{}},
"unknown": {kind: "unknown", err: ErrUnknownKind},
"pfifo_fast": {
kind: "pfifo_fast",
data: []byte{0x03, 0x00, 0x00, 0x00, 0x01, 0x02, 0x02, 0x02, 0x01, 0x02, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01},
expected: &Attribute{Prio: &Prio{
Bands: 3,
PrioMap: [16]uint8{1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1},
}},
},
}
for name, testcase := range tests {
t.Run(name, func(t *testing.T) {
value := &Attribute{}
if err := extractTCAOptions(testcase.data, value, testcase.kind); err != nil {
if errors.Is(err, testcase.err) {
// we received the expected error. everything is fine
return
}
t.Fatalf("Received error '%v', but expected '%v'", err, testcase.err)
}
if diff := cmp.Diff(value, testcase.expected); diff != "" {
t.Fatalf("ExtractTcmsgAttributes missmatch (-want +got):\n%s", diff)
}
})
}
}
func TestFilterAttribute(t *testing.T) {
tests := map[string]struct {
val *Attribute
err1 error
err2 error
}{
"basic": {val: &Attribute{Kind: "basic", Basic: &Basic{ClassID: uint32Ptr(2)}}},
"bpf": {val: &Attribute{Kind: "bpf", BPF: &Bpf{
Ops: bytesPtr([]byte{0x6, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff, 0xff}),
OpsLen: uint16Ptr(0x1),
ClassID: uint32Ptr(0x10001),
Flags: uint32Ptr(0x1),
}}},
"flow": {val: &Attribute{Kind: "flow", Flow: &Flow{
Keys: uint32Ptr(12), Mode: uint32Ptr(34), BaseClass: uint32Ptr(56), RShift: uint32Ptr(78),
Addend: uint32Ptr(90), Mask: uint32Ptr(21), XOR: uint32Ptr(43), Divisor: uint32Ptr(65), PerTurb: uint32Ptr(87),
}}},
"fw": {val: &Attribute{Kind: "fw", Fw: &Fw{ClassID: uint32Ptr(12), InDev: stringPtr("lo"), Mask: uint32Ptr(0xFFFF)}}},
"route4": {val: &Attribute{Kind: "route4", Route4: &Route4{ClassID: uint32Ptr(0xFFFF), To: uint32Ptr(2), From: uint32Ptr(3), IIf: uint32Ptr(4)}}},
"rsvp": {val: &Attribute{Kind: "rsvp", Rsvp: &Rsvp{ClassID: uint32Ptr(42), Police: &Police{AvRate: uint32Ptr(1337), Result: uint32Ptr(12)}}}},
"u32": {val: &Attribute{Kind: "u32", U32: &U32{ClassID: uint32Ptr(0xFFFF), Mark: &U32Mark{Val: 0x55, Mask: 0xAA, Success: 0x1}}}},
}
for name, testcase := range tests {
t.Run(name, func(t *testing.T) {
options, err1 := validateFilterObject(unix.RTM_NEWTFILTER, &Object{Msg{Ifindex: 42}, *testcase.val})
if err1 != nil {
if errors.Is(err1, testcase.err1) {
return
}
t.Fatalf("Unexpected error: %v", err1)
}
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
info := &Attribute{}
err2 := extractTcmsgAttributes(0xCAFE, data, info)
if err2 != nil {
if errors.Is(err2, testcase.err2) {
return
}
t.Fatalf("Unexpected error: %v", err2)
}
if diff := cmp.Diff(info, testcase.val); diff != "" {
t.Fatalf("Filter missmatch (want +got):\n%s", diff)
}
})
}
}
func TestQdiscAttribute(t *testing.T) {
tests := map[string]struct {
val *Attribute
err1 error
err2 error
}{
"clsact": {val: &Attribute{Kind: "clsact"}},
"ingress": {val: &Attribute{Kind: "ingress"}},
"atm": {val: &Attribute{Kind: "atm", Atm: &Atm{FD: uint32Ptr(12), Addr: &AtmPvc{Itf: byte(2)}}}},
"cbq": {val: &Attribute{Kind: "cbq", Cbq: &Cbq{LssOpt: &CbqLssOpt{OffTime: 10}, WrrOpt: &CbqWrrOpt{Weight: 42}, FOpt: &CbqFOpt{Split: 2}, OVLStrategy: &CbqOvl{Penalty: 2}}}},
"codel": {val: &Attribute{Kind: "codel", Codel: &Codel{Target: uint32Ptr(1), Limit: uint32Ptr(2), Interval: uint32Ptr(3), ECN: uint32Ptr(4), CEThreshold: uint32Ptr(5)}}},
"drr": {val: &Attribute{Kind: "drr", Drr: &Drr{Quantum: uint32Ptr(345)}}},
"dsmark": {val: &Attribute{Kind: "dsmark", Dsmark: &Dsmark{Indices: uint16Ptr(12), DefaultIndex: uint16Ptr(34), Mask: uint8Ptr(56), Value: uint8Ptr(78)}}},
"fq": {val: &Attribute{Kind: "fq", Fq: &Fq{PLimit: uint32Ptr(1), FlowPLimit: uint32Ptr(2), Quantum: uint32Ptr(3), InitQuantum: uint32Ptr(4), RateEnable: uint32Ptr(5), FlowDefaultRate: uint32Ptr(6), FlowMaxRate: uint32Ptr(7), BucketsLog: uint32Ptr(8), FlowRefillDelay: uint32Ptr(9), OrphanMask: uint32Ptr(10), LowRateThreshold: uint32Ptr(11), CEThreshold: uint32Ptr(12)}}},
"fq_codel": {val: &Attribute{Kind: "fq_codel", FqCodel: &FqCodel{Target: uint32Ptr(1), Limit: uint32Ptr(2), Interval: uint32Ptr(3), ECN: uint32Ptr(4), Flows: uint32Ptr(5), Quantum: uint32Ptr(6), CEThreshold: uint32Ptr(7), DropBatchSize: uint32Ptr(8), MemoryLimit: uint32Ptr(9)}}},
"hfsc": {val: &Attribute{Kind: "hfsc", HfscQOpt: &HfscQOpt{DefCls: 42}}},
"hhf": {val: &Attribute{Kind: "hhf", Hhf: &Hhf{BacklogLimit: uint32Ptr(1), Quantum: uint32Ptr(2), HHFlowsLimit: uint32Ptr(3), ResetTimeout: uint32Ptr(4), AdmitBytes: uint32Ptr(5), EVICTTimeout: uint32Ptr(6), NonHHWeight: uint32Ptr(7)}}},
"htb": {val: &Attribute{Kind: "htb", Htb: &Htb{Init: &HtbGlob{Version: 0x3, Rate2Quantum: 0xa, Defcls: 0x30}}}},
"mqprio": {val: &Attribute{Kind: "mqprio", MqPrio: &MqPrio{Opt: &MqPrioQopt{}, Mode: uint16Ptr(1), Shaper: uint16Ptr(2), MinRate64: uint64Ptr(3), MaxRate64: uint64Ptr(4)}}},
"pie": {val: &Attribute{Kind: "pie", Pie: &Pie{Target: uint32Ptr(1), Limit: uint32Ptr(2), TUpdate: uint32Ptr(3), Alpha: uint32Ptr(4), Beta: uint32Ptr(5), ECN: uint32Ptr(6), Bytemode: uint32Ptr(7)}}},
"qfq": {val: &Attribute{Kind: "qfq"}},
"red": {val: &Attribute{Kind: "red", Red: &Red{MaxP: uint32Ptr(2), Parms: &RedQOpt{QthMin: 2, QthMax: 4}}}},
"sfb": {val: &Attribute{Kind: "sfb", Sfb: &Sfb{Parms: &SfbQopt{Max: 0xFF}}}},
"tbf": {val: &Attribute{Kind: "tbf", Tbf: &Tbf{Burst: uint32Ptr(3), Pburst: uint32Ptr(4)}}, err1: ErrNoArg},
"pfifo": {val: &Attribute{Kind: "pfifo", Pfifo: &FifoOpt{Limit: 42}}},
"bfifo": {val: &Attribute{Kind: "bfifo", Bfifo: &FifoOpt{Limit: 84}}},
"<unknown>": {val: &Attribute{Kind: "<unknown>"}, err1: ErrNotImplemented},
"clsact+stats": {val: &Attribute{Kind: "clsact", Stats: &Stats{Drops: 42}}, err1: ErrNotImplemented},
"clsact+stab": {val: &Attribute{Kind: "clsact", Stab: &Stab{Base: &SizeSpec{MTU: 9200}}}},
}
for name, testcase := range tests {
t.Run(name, func(t *testing.T) {
options, err1 := validateQdiscObject(unix.RTM_NEWQDISC, &Object{Msg{Ifindex: 42}, *testcase.val})
if err1 != nil {
if testcase.err1 != nil && errors.Is(err1, testcase.err1) {
return
}
t.Fatalf("Unexpected error: %v", err1)
}
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
info := &Attribute{}
err2 := extractTcmsgAttributes(unix.RTM_NEWQDISC, data, info)
if err2 != nil {
if testcase.err2 != nil && errors.Is(err2, testcase.err2) {
return
}
t.Fatalf("Unexpected error: %v", err2)
}
if diff := cmp.Diff(info, testcase.val); diff != "" {
t.Fatalf("Filter missmatch (want +got):\n%s", diff)
}
})
}
}
func TestClassAttribute(t *testing.T) {
tests := map[string]struct {
val *Attribute
err1 error
err2 error
}{
"clsact": {val: &Attribute{Kind: "clsact"}, err1: ErrNotImplemented},
"hfsc": {val: &Attribute{Kind: "hfsc", Hfsc: &Hfsc{Rsc: &ServiceCurve{M1: 12, D: 34, M2: 56}}}},
"qfq": {val: &Attribute{Kind: "qfq", Qfq: &Qfq{Weight: uint32Ptr(2), Lmax: uint32Ptr(4)}}},
}
for name, testcase := range tests {
t.Run(name, func(t *testing.T) {
options, err1 := validateClassObject(unix.RTM_NEWTCLASS, &Object{Msg{Ifindex: 42}, *testcase.val})
if err1 != nil {
if errors.Is(err1, testcase.err1) {
return
}
t.Fatalf("Unexpected error: %v", err1)
}
data, err := marshalAttributes(options)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
info := &Attribute{}
err2 := extractTcmsgAttributes(unix.RTM_NEWTCLASS, data, info)
if err2 != nil {
if errors.Is(err2, testcase.err2) {
return
}
t.Fatalf("Unexpected error: %v", err2)
}
if diff := cmp.Diff(info, testcase.val); diff != "" {
t.Fatalf("Filter missmatch (want +got):\n%s", diff)
}
})
}
}