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control_test.go
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package bfd
import (
"bytes"
"fmt"
"reflect"
"testing"
)
type bfdControlPacketTestSet struct {
Name string
Data []byte
Packet BfdControlPacket
}
var tests = []bfdControlPacketTestSet{
{
Name: "Default",
Data: []byte{
0x20, // Version 1, No Diagnostics
0x40, // Session State: DOWN, Message Flags: None
0x03, // Detect Time Multiplier (3)
0x18, // Message Length (24)
0x00, 0x00, 0x00, 0x00, // My Discriminator (0)
0x00, 0x00, 0x00, 0x00, // Your Discriminator (0)
0x00, 0x0f, 0x42, 0x40, // Desired Min TX interval (1000000)
0x00, 0x0f, 0x42, 0x40, // Required Min RX interval (1000000)
0x00, 0x00, 0x00, 0x00, // Required Min Echo interval (0)
},
Packet: BfdControlPacketDefaults,
},
{
Name: "Discriminator",
Data: []byte{
0x20, 0x40, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, // Mine: 1
0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, // Yours: 25
0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00,
},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_DOWN,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "State: Admin Down",
Data: []byte{
0x20, 0x00, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, // State: Admin Down
0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40,
0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00,
},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_ADMIN_DOWN,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "State: Init",
Data: []byte{
0x20, 0x80, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, // State: Init
0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40,
0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00,
},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_INIT,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "State: UP",
Data: []byte{
0x20, 0xc0, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, // State: UP
0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40,
0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00,
},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Flag: Poll",
Data: []byte{0x20, 0xe0, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: true, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Flag: Final",
Data: []byte{0x20, 0xd0, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: true, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Flag: Control Plane Independent",
Data: []byte{0x20, 0xc8, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: true, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Flag: Demand",
Data: []byte{0x20, 0xc2, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: true, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Flag: Multipoint",
Data: []byte{0x20, 0xc1, 0x03, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: true,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Detection: Multiplier",
Data: []byte{0x20, 0xc0, 0x0a, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 10, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Detection: DesiredMinTxInterval",
Data: []byte{0x20, 0xc0, 0x0a, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x2d, 0xc6, 0xc0, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 10, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 3000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Detection: RequiredMinRxInterval",
Data: []byte{0x20, 0xc0, 0x0a, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x2d, 0xc6, 0xc0, 0x00, 0x00, 0x00, 0x00},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 10, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 3000000, RequiredMinEchoRxInterval: 0,
AuthHeader: nil,
},
},
{
Name: "Detection: RequiredMinEchoRxInterval",
Data: []byte{0x20, 0xc0, 0x0a, 0x18, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x0f, 0x42, 0x40, 0x00, 0x0f, 0x42, 0x40},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: false, Demand: false, Multipoint: false,
DetectMult: 10, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 1000000,
AuthHeader: nil,
},
},
{
Name: "Authentication: SIMPLE",
Data: []byte{
0x20, 0xc4, 0x03, 0x23, 0x00, 0x00, 0x00, 0x01, // State: UP, Auth Present
0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40,
0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00,
0x01, 0x0b, 0x01,
0x70, 0x61, 0x73, 0x73, 0x77, 0x6f, 0x72, 0x64, // password
},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: true, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: &BfdAuthHeader{
Type: BFD_AUTH_TYPE_SIMPLE,
AuthKeyID: 1,
AuthData: []byte{0x70, 0x61, 0x73, 0x73, 0x77, 0x6f, 0x72, 0x64},
},
},
},
{
Name: "Authentication: Keyed MD5",
Data: []byte{
0x20, 0xc4, 0x03, 0x30, 0x00, 0x00, 0x00, 0x01, // State: UP, Auth Present
0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40,
0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00,
0x02, 0x18, 0x01, 0x00,
0x00, 0x00, 0x00, 0x01,
0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, // abcdefghijklmnop
},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: true, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: &BfdAuthHeader{
Type: BFD_AUTH_TYPE_KEYED_MD5,
AuthKeyID: 1,
SequenceNumber: 1,
AuthData: []byte{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70},
},
},
},
{
Name: "Authentication: Keyed SHA1",
Data: []byte{
0x20, 0xc4, 0x03, 0x34, 0x00, 0x00, 0x00, 0x01, // State: UP, Auth Present
0x00, 0x00, 0x00, 0x19, 0x00, 0x0f, 0x42, 0x40,
0x00, 0x0f, 0x42, 0x40, 0x00, 0x00, 0x00, 0x00,
0x04, 0x1c, 0x01, 0x00,
0x00, 0x00, 0x00, 0x01,
0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, // abcdefghijklmnopqrst
},
Packet: BfdControlPacket{
Version: 1, Diagnostic: DIAG_NONE, State: STATE_UP,
Poll: false, Final: false, ControlPlaneIndependent: false, AuthPresent: true, Demand: false, Multipoint: false,
DetectMult: 3, MyDiscriminator: 1, YourDiscriminator: 25,
DesiredMinTxInterval: 1000000, RequiredMinRxInterval: 1000000, RequiredMinEchoRxInterval: 0,
AuthHeader: &BfdAuthHeader{
Type: BFD_AUTH_TYPE_KEYED_SHA1,
AuthKeyID: 1,
SequenceNumber: 1,
AuthData: []byte{0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74},
},
},
},
}
/*
* Loop through the data sets to test decoding
*/
func TestDecodeBfdControlPacket(t *testing.T) {
var got *BfdControlPacket
var err error
for _, e := range tests {
got, err = decodeBfdPacket(e.Data)
if err != nil {
fmt.Println("Error decoding BFD Control Packet:", err)
}
if !reflect.DeepEqual(&e.Packet, got) {
t.Errorf("BFD mismatch for test '%s', \nexpected:\n%#v\n\ngot:\n%#v\n\n", e.Name, e.Packet, got)
if e.Packet.AuthHeader != nil {
t.Errorf("Auth expected:\n%#v\n\ngot:\n%#v\n\n", e.Packet.AuthHeader, got.AuthHeader)
}
}
}
}
/*
* Loop through the data sets to test marshalling
*/
func TestMarshalBfdControlPacket(t *testing.T) {
var got []byte
for _, e := range tests {
got = e.Packet.Marshal()
if got == nil {
fmt.Println("Error Marshalling BFD Control Packet:", e.Name)
}
if !bytes.Equal(e.Data, got) {
t.Errorf("BFD mismatch for test '%s', \nexpected:\n%#v\n\ngot:\n%#v\n\n", e.Name, e.Data, got)
}
}
}