packet: create mrt package

move mrt stuff from bgp to mrt package.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

1 files changed, 221 insertions, 0 deletions

diff --git a/packet/mrt/mrt_test.go b/packet/mrt/mrt_test.go
new file mode 100644
index 00000000..634d69ae
--- /dev/null
+++ b/packet/mrt/mrt_test.go
@@ -0,0 +1,221 @@
+// Copyright (C) 2015 Nippon Telegraph and Telephone Corporation.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+// implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package mrt
+
+import (
+	"bufio"
+	"bytes"
+	"github.com/osrg/gobgp/packet/bgp"
+	"github.com/stretchr/testify/assert"
+	"reflect"
+	"testing"
+	"time"
+)
+
+func TestMrtHdr(t *testing.T) {
+	h1, err := NewMRTHeader(10, TABLE_DUMPv2, RIB_IPV4_MULTICAST, 20)
+	if err != nil {
+		t.Fatal(err)
+	}
+	b1, err := h1.Serialize()
+	if err != nil {
+		t.Fatal(err)
+	}
+	h2 := &MRTHeader{}
+	err = h2.DecodeFromBytes(b1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	assert.Equal(t, reflect.DeepEqual(h1, h2), true)
+}
+
+func TestMrtHdrTime(t *testing.T) {
+	h1, err := NewMRTHeader(10, TABLE_DUMPv2, RIB_IPV4_MULTICAST, 20)
+	if err != nil {
+		t.Fatal(err)
+	}
+	ttime := time.Unix(10, 0)
+	htime := h1.GetTime()
+	t.Logf("this timestamp should be 10s after epoch:%v", htime)
+	assert.Equal(t, h1.GetTime(), ttime)
+}
+
+func testPeer(t *testing.T, p1 *Peer) {
+	b1, err := p1.Serialize()
+	if err != nil {
+		t.Fatal(err)
+	}
+	p2 := &Peer{}
+	rest, err := p2.DecodeFromBytes(b1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	assert.Equal(t, len(rest), 0)
+	assert.Equal(t, reflect.DeepEqual(p1, p2), true)
+}
+
+func TestMrtPeer(t *testing.T) {
+	p := NewPeer("192.168.0.1", "10.0.0.1", 65000, false)
+	testPeer(t, p)
+}
+
+func TestMrtPeerv6(t *testing.T) {
+	p := NewPeer("192.168.0.1", "2001::1", 65000, false)
+	testPeer(t, p)
+}
+
+func TestMrtPeerAS4(t *testing.T) {
+	p := NewPeer("192.168.0.1", "2001::1", 135500, true)
+	testPeer(t, p)
+}
+
+func TestMrtPeerIndexTable(t *testing.T) {
+	p1 := NewPeer("192.168.0.1", "10.0.0.1", 65000, false)
+	p2 := NewPeer("192.168.0.1", "2001::1", 65000, false)
+	p3 := NewPeer("192.168.0.1", "2001::1", 135500, true)
+	pt1 := NewPeerIndexTable("192.168.0.1", "test", []*Peer{p1, p2, p3})
+	b1, err := pt1.Serialize()
+	if err != nil {
+		t.Fatal(err)
+	}
+	pt2 := &PeerIndexTable{}
+	err = pt2.DecodeFromBytes(b1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	assert.Equal(t, reflect.DeepEqual(pt1, pt2), true)
+}
+
+func TestMrtRibEntry(t *testing.T) {
+	aspath1 := []bgp.AsPathParamInterface{
+		bgp.NewAsPathParam(2, []uint16{1000}),
+		bgp.NewAsPathParam(1, []uint16{1001, 1002}),
+		bgp.NewAsPathParam(2, []uint16{1003, 1004}),
+	}
+
+	p := []bgp.PathAttributeInterface{
+		bgp.NewPathAttributeOrigin(3),
+		bgp.NewPathAttributeAsPath(aspath1),
+		bgp.NewPathAttributeNextHop("129.1.1.2"),
+		bgp.NewPathAttributeMultiExitDisc(1 << 20),
+		bgp.NewPathAttributeLocalPref(1 << 22),
+	}
+
+	e1 := NewRibEntry(1, uint32(time.Now().Unix()), p)
+	b1, err := e1.Serialize()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	e2 := &RibEntry{}
+	rest, err := e2.DecodeFromBytes(b1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	assert.Equal(t, len(rest), 0)
+	assert.Equal(t, reflect.DeepEqual(e1, e2), true)
+}
+
+func TestMrtRib(t *testing.T) {
+	aspath1 := []bgp.AsPathParamInterface{
+		bgp.NewAsPathParam(2, []uint16{1000}),
+		bgp.NewAsPathParam(1, []uint16{1001, 1002}),
+		bgp.NewAsPathParam(2, []uint16{1003, 1004}),
+	}
+
+	p := []bgp.PathAttributeInterface{
+		bgp.NewPathAttributeOrigin(3),
+		bgp.NewPathAttributeAsPath(aspath1),
+		bgp.NewPathAttributeNextHop("129.1.1.2"),
+		bgp.NewPathAttributeMultiExitDisc(1 << 20),
+		bgp.NewPathAttributeLocalPref(1 << 22),
+	}
+
+	e1 := NewRibEntry(1, uint32(time.Now().Unix()), p)
+	e2 := NewRibEntry(2, uint32(time.Now().Unix()), p)
+	e3 := NewRibEntry(3, uint32(time.Now().Unix()), p)
+
+	r1 := NewRib(1, bgp.NewIPAddrPrefix(24, "192.168.0.0"), []*RibEntry{e1, e2, e3})
+	b1, err := r1.Serialize()
+	if err != nil {
+		t.Fatal(err)
+	}
+	r2 := &Rib{
+		RouteFamily: bgp.RF_IPv4_UC,
+	}
+	err = r2.DecodeFromBytes(b1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	assert.Equal(t, reflect.DeepEqual(r1, r2), true)
+}
+
+func TestMrtBgp4mpStateChange(t *testing.T) {
+	c1 := NewBGP4MPStateChange(65000, 65001, 1, "192.168.0.1", "192.168.0.2", false, ACTIVE, ESTABLISHED)
+	b1, err := c1.Serialize()
+	if err != nil {
+		t.Fatal(err)
+	}
+	c2 := &BGP4MPStateChange{BGP4MPHeader: &BGP4MPHeader{}}
+	err = c2.DecodeFromBytes(b1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, err = c2.Serialize()
+	if err != nil {
+		t.Fatal(err)
+	}
+	assert.Equal(t, reflect.DeepEqual(c1, c2), true)
+}
+
+func TestMrtBgp4mpMessage(t *testing.T) {
+	msg := bgp.NewBGPKeepAliveMessage()
+	m1 := NewBGP4MPMessage(65000, 65001, 1, "192.168.0.1", "192.168.0.2", false, msg)
+	b1, err := m1.Serialize()
+	if err != nil {
+		t.Fatal(err)
+	}
+	m2 := &BGP4MPMessage{BGP4MPHeader: &BGP4MPHeader{}}
+	err = m2.DecodeFromBytes(b1)
+	if err != nil {
+		t.Fatal(err)
+	}
+	assert.Equal(t, reflect.DeepEqual(m1, m2), true)
+}
+
+func TestMrtSplit(t *testing.T) {
+	var b bytes.Buffer
+	numwrite, numread := 10, 0
+	for i := 0; i < numwrite; i++ {
+		msg := bgp.NewBGPKeepAliveMessage()
+		m1 := NewBGP4MPMessage(65000, 65001, 1, "192.168.0.1", "192.168.0.2", false, msg)
+		mm, _ := NewMRTMessage(1234, BGP4MP, MESSAGE, m1)
+		b1, err := mm.Serialize()
+		if err != nil {
+			t.Fatal(err)
+		}
+		b.Write(b1)
+	}
+	t.Logf("wrote %d serialized MRT keepalives in the buffer", numwrite)
+	r := bytes.NewReader(b.Bytes())
+	scanner := bufio.NewScanner(r)
+	scanner.Split(SplitMrt)
+	for scanner.Scan() {
+		numread += 1
+	}
+	t.Logf("scanner scanned %d serialized keepalives from the buffer", numread)
+	assert.Equal(t, numwrite, numread)
+}