fix: some pad's length in UnmarshalBinary is 0

Signed-off-by: xuxiaochuang <[email protected]>

Author: xuxiaochuang

openflow13/multipart.go

@@ -668,9 +668,9 @@ func (s *TableStats) UnmarshalBinary(data []byte) error {
 	s.TableId = data[0]
 	n += 1
 	copy(s.pad, data[n:])
-	n += len(s.pad)
+	n += 3
 	copy(s.Name, data[n:])
-	n += len(s.Name)
+	n += MAX_TABLE_NAME_LEN
 	s.Wildcards = binary.BigEndian.Uint32(data[n:])
 	n += 4
 	s.MaxEntries = binary.BigEndian.Uint32(data[n:])
@@ -790,7 +790,7 @@ func (s *PortStats) UnmarshalBinary(data []byte) error {
 	s.PortNo = binary.BigEndian.Uint16(data[n:])
 	n += 2
 	copy(s.pad, data[n:])
-	n += len(s.pad)
+	n += 6
 	s.RxPackets = binary.BigEndian.Uint64(data[n:])
 	n += 8
 	s.TxPackets = binary.BigEndian.Uint64(data[n:])
@@ -895,7 +895,7 @@ func (s *QueueStats) UnmarshalBinary(data []byte) error {
 	s.PortNo = binary.BigEndian.Uint16(data[n:])
 	n += 2
 	copy(s.pad, data[n:])
-	n += len(s.pad)
+	n += 2
 	s.QueueId = binary.BigEndian.Uint32(data[n:])
 	n += 4
 	s.TxBytes = binary.BigEndian.Uint64(data[n:])
@@ -952,7 +952,7 @@ func (s *PortStatus) UnmarshalBinary(data []byte) error {
 	s.Reason = data[n]
 	n += 1
 	copy(s.pad, data[n:])
-	n += len(s.pad)
+	n += 7
 
 	err = s.Desc.UnmarshalBinary(data[n:])
 	return err

openflow13/openflow13.go

@@ -270,7 +270,8 @@ func (p *PacketOut) UnmarshalBinary(data []byte) error {
 
 	n += 6 // for pad
 
-	for n < (n + p.ActionsLen) {
+	actionsBound := n + p.ActionsLen
+	for n < actionsBound {
 		a, err := DecodeAction(data[n:])
 		if err != nil {
 			return err
@@ -745,6 +746,7 @@ func (s *SwitchFeatures) UnmarshalBinary(data []byte) error {
 	for next < len(data) {
 		p := NewPhyPort()
 		err = p.UnmarshalBinary(data[next:])
+		s.Ports = append(s.Ports, *p)
 		next += int(p.Len())
 	}
 	return err