packet: create rtr package

move rtr stuff from bgp to rtr package.

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

1 files changed, 122 insertions, 0 deletions

diff --git a/packet/rtr/rtr_test.go b/packet/rtr/rtr_test.go
new file mode 100644
index 00000000..961805d5
--- /dev/null
+++ b/packet/rtr/rtr_test.go
@@ -0,0 +1,122 @@
+// 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 rtr
+
+import (
+	"encoding/hex"
+	"math/rand"
+	"net"
+	"reflect"
+	"testing"
+	"time"
+)
+
+func verifyRTRMessage(t *testing.T, m1 RTRMessage) {
+	buf1, _ := m1.Serialize()
+	m2, err := ParseRTR(buf1)
+	if err != nil {
+		t.Error(err)
+	}
+	buf2, _ := m2.Serialize()
+
+	if reflect.DeepEqual(buf1, buf2) == true {
+		t.Log("OK")
+	} else {
+		t.Errorf("Something wrong")
+		t.Error(len(buf1), m1, hex.EncodeToString(buf1))
+		t.Error(len(buf2), m2, hex.EncodeToString(buf2))
+	}
+}
+
+func randUint32() uint32 {
+	rand.Seed(time.Now().UnixNano())
+	return rand.Uint32()
+}
+
+func Test_RTRSerialNotify(t *testing.T) {
+	id := uint16(time.Now().Unix())
+	sn := randUint32()
+	verifyRTRMessage(t, NewRTRSerialNotify(id, sn))
+}
+
+func Test_RTRSerialQuery(t *testing.T) {
+	id := uint16(time.Now().Unix())
+	sn := randUint32()
+	verifyRTRMessage(t, NewRTRSerialQuery(id, sn))
+}
+
+func Test_RTRResetQuery(t *testing.T) {
+	verifyRTRMessage(t, NewRTRResetQuery())
+}
+
+func Test_RTRCacheResponse(t *testing.T) {
+	id := uint16(time.Now().Unix())
+	verifyRTRMessage(t, NewRTRCacheResponse(id))
+}
+
+type rtrIPPrefixTestCase struct {
+	pString string
+	pLen    uint8
+	mLen    uint8
+	asn     uint32
+	flags   uint8
+}
+
+var rtrIPPrefixTestCases = []rtrIPPrefixTestCase{
+	{"192.168.0.0", 16, 32, 65001, ANNOUNCEMENT},
+	{"192.168.0.0", 16, 32, 65001, WITHDRAWAL},
+	{"2001:db8::", 32, 128, 65001, ANNOUNCEMENT},
+	{"2001:db8::", 32, 128, 65001, WITHDRAWAL},
+	{"::ffff:0.0.0.0", 96, 128, 65001, ANNOUNCEMENT},
+	{"::ffff:0.0.0.0", 96, 128, 65001, WITHDRAWAL},
+}
+
+func Test_RTRIPPrefix(t *testing.T) {
+	for i := range rtrIPPrefixTestCases {
+		test := &rtrIPPrefixTestCases[i]
+		addr := net.ParseIP(test.pString)
+		verifyRTRMessage(t, NewRTRIPPrefix(addr, test.pLen, test.mLen, test.asn, test.flags))
+	}
+}
+
+func Test_RTREndOfData(t *testing.T) {
+	id := uint16(time.Now().Unix())
+	sn := randUint32()
+	verifyRTRMessage(t, NewRTREndOfData(id, sn))
+}
+
+func Test_RTRCacheReset(t *testing.T) {
+	verifyRTRMessage(t, NewRTRCacheReset())
+}
+
+func Test_RTRErrorReport(t *testing.T) {
+	errPDU, _ := NewRTRResetQuery().Serialize()
+	errText1 := []byte("Couldn't send CacheResponce PDU")
+	errText2 := []byte("Wrong Length of PDU: 10 bytes")
+
+	// See 5.10 ErrorReport in RFC6810
+	// when it doesn't have both "erroneous PDU" and "Arbitrary Text"
+	verifyRTRMessage(t, NewRTRErrorReport(NO_DATA_AVAILABLE, nil, nil))
+
+	// when it has "erroneous PDU"
+	verifyRTRMessage(t, NewRTRErrorReport(UNSUPPORTED_PROTOCOL_VERSION, errPDU, nil))
+
+	// when it has "ArbitaryText"
+	verifyRTRMessage(t, NewRTRErrorReport(INTERNAL_ERROR, nil, errText1))
+
+	// when it has both "erroneous PDU" and "Arbitrary Text"
+	verifyRTRMessage(t, NewRTRErrorReport(CORRUPT_DATA, errPDU, errText2))
+}