fix: log cmpp packet decode failures

gateway/third_party/gocmpp/activetest.go

@@ -0,0 +1,86 @@
+// Copyright 2015 Tony Bai.
+//
+// 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,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmpp
+
+import "encoding/binary"
+
+// Packet length const for cmpp active test request and response packets.
+const (
+	CmppActiveTestReqPktLen uint32 = 12     //12d, 0xc
+	CmppActiveTestRspPktLen uint32 = 12 + 1 //13d, 0xd
+)
+
+type CmppActiveTestReqPkt struct {
+	// session info
+	SeqId uint32
+}
+type CmppActiveTestRspPkt struct {
+	Reserved uint8
+	// session info
+	SeqId uint32
+}
+
+// Pack packs the CmppActiveTestReqPkt to bytes stream for client side.
+func (p *CmppActiveTestReqPkt) Pack(seqId uint32) ([]byte, error) {
+	var pktLen = CmppActiveTestReqPktLen
+
+	var w = newPacketWriter(pktLen)
+
+	// Pack header
+	w.WriteInt(binary.BigEndian, pktLen)
+	w.WriteInt(binary.BigEndian, CMPP_ACTIVE_TEST)
+	w.WriteInt(binary.BigEndian, seqId)
+	p.SeqId = seqId
+
+	return w.Bytes()
+}
+
+// Unpack unpack the binary byte stream to a CmppActiveTestReqPkt variable.
+// After unpack, you will get all value of fields in
+// CmppActiveTestReqPkt struct.
+func (p *CmppActiveTestReqPkt) Unpack(data []byte) error {
+	var r = newPacketReader(data)
+
+	// Sequence Id
+	r.ReadInt(binary.BigEndian, &p.SeqId)
+	return r.Error()
+}
+
+// Pack packs the CmppActiveTestRspPkt to bytes stream for client side.
+func (p *CmppActiveTestRspPkt) Pack(seqId uint32) ([]byte, error) {
+	var pktLen = CmppActiveTestRspPktLen
+
+	var w = newPacketWriter(pktLen)
+
+	// Pack header
+	w.WriteInt(binary.BigEndian, pktLen)
+	w.WriteInt(binary.BigEndian, CMPP_ACTIVE_TEST_RESP)
+	w.WriteInt(binary.BigEndian, seqId)
+	w.WriteByte(p.Reserved)
+	p.SeqId = seqId
+
+	return w.Bytes()
+}
+
+// Unpack unpack the binary byte stream to a CmppActiveTestRspPkt variable.
+// After unpack, you will get all value of fields in
+// CmppActiveTestRspPkt struct.
+func (p *CmppActiveTestRspPkt) Unpack(data []byte) error {
+	var r = newPacketReader(data)
+
+	// Sequence Id
+	r.ReadInt(binary.BigEndian, &p.SeqId)
+	p.Reserved = r.ReadByte()
+	return r.Error()
+}