Bump up golangci-bin version

1. Bump up golangci-bin version to v1.50.0
2. Remove invalid configurations in golangci.yml
3. Formated several files
4. Removed unused code which is for padding messages

Signed-off-by: wenyingd <wenyingd@vmware.com>

Author: wenyingd

.golangci.yml

@@ -12,13 +12,10 @@ linters-settings:
 linters:
   disable-all: true
   enable: # see https://golangci-lint.run/usage/linters/
-    - deadcode
+    - unused
     - staticcheck
     - govet
     - gofmt
     - goimports
     - gosec
     - misspell
-
-run:
-  deadline: 5m

Makefile

@@ -9,7 +9,7 @@ test:
 # code linting
 .golangci-bin:
 	@echo "===> Installing Golangci-lint <==="
-	@curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $@ v1.41.1
+	@curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $@ v1.50.0
 
 .PHONY: golangci
 golangci: .golangci-bin

openflow13/action.go

@@ -276,7 +276,32 @@ func (a *ActionGroup) UnmarshalBinary(data []byte) error {
 type ActionMplsTtl struct {
 	ActionHeader
 	MplsTtl uint8
-	pad     []byte // 3bytes
+}
+
+func (a *ActionMplsTtl) Len() uint16 {
+	return a.ActionHeader.Len() + 4
+}
+
+func (a *ActionMplsTtl) MarshalBinary() (data []byte, err error) {
+	n := 0
+	data, err = a.ActionHeader.MarshalBinary()
+	if err != nil {
+		return
+	}
+	n += int(a.ActionHeader.Len())
+	data[n] = a.MplsTtl
+	return
+}
+
+func (a *ActionMplsTtl) UnmarshalBinary(data []byte) error {
+	n := 0
+	err := a.ActionHeader.UnmarshalBinary(data[n:])
+	if err != nil {
+		return err
+	}
+	n += int(a.ActionHeader.Len())
+	a.MplsTtl = data[n]
+	return nil
 }
 
 type ActionDecNwTtl struct {
@@ -315,13 +340,37 @@ func (a *ActionDecNwTtl) UnmarshalBinary(data []byte) error {
 type ActionNwTtl struct {
 	ActionHeader
 	NwTtl uint8
-	pad   []byte // 3bytes
+}
+
+func (a *ActionNwTtl) Len() uint16 {
+	return a.ActionHeader.Len() + 4
+}
+
+func (a *ActionNwTtl) MarshalBinary() (data []byte, err error) {
+	n := 0
+	data, err = a.ActionHeader.MarshalBinary()
+	if err != nil {
+		return
+	}
+	n += int(a.ActionHeader.Len())
+	data[n] = a.NwTtl
+	return
+}
+
+func (a *ActionNwTtl) UnmarshalBinary(data []byte) error {
+	n := 0
+	err := a.ActionHeader.UnmarshalBinary(data[n:])
+	if err != nil {
+		return err
+	}
+	n += int(a.ActionHeader.Len())
+	a.NwTtl = data[n]
+	return nil
 }
 
 type ActionPush struct {
 	ActionHeader
 	EtherType uint16
-	pad       []byte // 2bytes
 }
 
 func NewActionPushVlan(etherType uint16) *ActionPush {
@@ -362,7 +411,6 @@ func (a *ActionPush) UnmarshalBinary(data []byte) error {
 
 type ActionPopVlan struct {
 	ActionHeader
-	pad []byte // 4bytes
 }
 
 func NewActionPopVlan() *ActionPopVlan {
@@ -395,7 +443,6 @@ func (a *ActionPopVlan) UnmarshalBinary(data []byte) error {
 type ActionPopMpls struct {
 	ActionHeader
 	EtherType uint16
-	pad       []byte // 2bytes
 }
 
 func NewActionPopMpls(etherType uint16) *ActionPopMpls {

openflow13/bundles.go

@@ -165,15 +165,15 @@ func NewBundlePropertyExperimenter() *BundlePropertyExperimenter {
 // it, if the added messages are not wanted to realize on the switch.
 type BundleAdd struct {
 	BundleID   uint32
-	pad        [2]byte
 	Flags      uint16
 	Message    util.Message
 	Properties []BundlePropertyExperimenter
 }
 
 func (b *BundleAdd) Len() (n uint16) {
 	length := uint16(unsafe.Sizeof(b.BundleID) + unsafe.Sizeof(b.Flags))
-	length += uint16(len(b.pad))
+	// 2 bytes for padding
+	length += 2
 	length += b.Message.Len()
 	if b.Properties != nil {
 		for _, p := range b.Properties {

openflow13/flowmod.go

@@ -27,8 +27,6 @@ type FlowMod struct {
 	OutGroup uint32
 	Flags    uint16
 
-	pad []byte // 2bytes
-
 	Match        Match         // Fields to match
 	Instructions []Instruction //  Instruction set - 0 or more.
 }

openflow13/match.go

@@ -127,7 +127,7 @@ func (m *MatchField) MarshalBinary() (data []byte, err error) {
 	if m.HasMask {
 		fld = (m.Field << 1) | 0x1
 	} else {
-		fld = (m.Field << 1) | 0x0
+		fld = m.Field << 1
 	}
 	data[n] = fld
 	n += 1
@@ -477,7 +477,7 @@ func DecodeMatchField(class uint16, field uint8, length uint8, hasMask bool, dat
 	return nil, nil
 }
 
-//  ofp_match_type 1.3
+// ofp_match_type 1.3
 const (
 	MatchType_Standard = iota /* Deprecated. */
 	MatchType_OXM

openflow13/meter.go

@@ -81,7 +81,6 @@ func (m *MeterBandHeader) UnmarshalBinary(data []byte) error {
 
 type MeterBandDrop struct {
 	MeterBandHeader /* Type: OFPMBT13_DROP. */
-	pad             [4]uint8
 }
 
 func (m *MeterBandDrop) Len() (n uint16) {
@@ -111,7 +110,6 @@ func (m *MeterBandDrop) UnmarshalBinary(data []byte) error {
 type MeterBandDSCP struct {
 	MeterBandHeader       /* Type: OFPMBT13_DSCP_REMARK. */
 	PrecLevel       uint8 /* Number of drop precedence level to add. */
-	pad             [3]uint8
 }
 
 func (m *MeterBandDSCP) Len() (n uint16) {

openflow13/multipart.go

@@ -15,7 +15,6 @@ type MultipartRequest struct {
 	common.Header
 	Type  uint16
 	Flags uint16
-	pad   []byte // 4 bytes
 	Body  []util.Message
 }
 
@@ -103,7 +102,6 @@ type MultipartReply struct {
 	common.Header
 	Type  uint16
 	Flags uint16
-	pad   []byte // 4 bytes
 	Body  []util.Message
 }
 
@@ -1324,7 +1322,6 @@ type OFPTableFeatures struct {
 	Length        uint16
 	TableID       uint8
 	Command       uint8
-	pad           [4]uint8
 	Name          [32]byte
 	MetadataMatch uint64
 	MetadataWrite uint64
@@ -1350,6 +1347,7 @@ func (f *OFPTableFeatures) MarshalBinary() (data []byte, err error) {
 	n += 1
 	data[n] = f.Command
 	n += 1
+	// 4 bytes for padding
 	n += 4
 	copy(data[n:], f.Name[:32])
 	n += 32

openflow13/nx_action.go

@@ -1218,11 +1218,9 @@ type NXActionLearn struct {
 	Cookie         uint64
 	Flags          uint16
 	TableID        uint8
-	pad            uint8
 	FinIdleTimeout uint16
 	FinHardTimeout uint16
 	LearnSpecs     []*NXLearnSpec
-	pad2           []byte
 }
 
 func (a *NXActionLearn) Len() uint16 {
@@ -1252,7 +1250,9 @@ func (a *NXActionLearn) MarshalBinary() (data []byte, err error) {
 	binary.BigEndian.PutUint16(data[n:], a.Flags)
 	n += 2
 	data[n] = a.TableID
-	n += 2
+	n += 1
+	// 1 byte for padding
+	n += 1
 	binary.BigEndian.PutUint16(data[n:], a.FinIdleTimeout)
 	n += 2
 	binary.BigEndian.PutUint16(data[n:], a.FinHardTimeout)
@@ -1364,7 +1364,6 @@ func NewNXActionNote() *NXActionNote {
 type NXActionRegLoad2 struct {
 	*NXActionHeader
 	DstField *MatchField
-	pad      []byte
 }
 
 func NewNXActionRegLoad2(dstField *MatchField) *NXActionRegLoad2 {
@@ -1417,7 +1416,6 @@ type NXActionController struct {
 	MaxLen       uint16
 	ControllerID uint16
 	Reason       uint8
-	pad          uint8
 }
 
 func (a *NXActionController) Len() uint16 {
@@ -1487,7 +1485,6 @@ const (
 type NXActionController2PropMaxLen struct {
 	*PropHeader /* Type: NXAC2PT_MAX_LEN */
 	MaxLen      uint16
-	pad         [2]uint8
 }
 
 func (a *NXActionController2PropMaxLen) Len() uint16 {
@@ -1539,7 +1536,6 @@ func NewMaxLen(maxLen uint16) *NXActionController2PropMaxLen {
 type NXActionController2PropControllerID struct {
 	*PropHeader  /* Type: NXAC2PT_CONTROLLER_ID */
 	ControllerID uint16
-	pad          [2]uint8
 }
 
 func (a *NXActionController2PropControllerID) Len() uint16 {
@@ -1591,7 +1587,6 @@ func NewControllerID(controllerID uint16) *NXActionController2PropControllerID {
 type NXActionController2PropReason struct {
 	*PropHeader /* Type: NXAC2PT_REASON */
 	Reason      uint8
-	pad         [3]uint8
 }
 
 func (a *NXActionController2PropReason) Len() uint16 {
@@ -1643,7 +1638,6 @@ func NewReason(reason uint8) *NXActionController2PropReason {
 type NXActionController2PropUserdata struct {
 	*PropHeader /* Type: NXAC2PT_USERDATA */
 	Userdata    []byte
-	pad         []uint8
 }
 
 func (a *NXActionController2PropUserdata) Len() uint16 {
@@ -1695,7 +1689,6 @@ func NewUserdata(userdata []byte) *NXActionController2PropUserdata {
 
 type NXActionController2PropPause struct {
 	*PropHeader /* Type: NXAC2PT_PAUSE */
-	pad         [4]uint8
 }
 
 func (a *NXActionController2PropPause) Len() uint16 {
@@ -1818,7 +1811,6 @@ func DecodeController2Prop(data []byte) (Property, error) {
 // NXActionController2 is NX action to output packet to the Controller set with a specified ID.
 type NXActionController2 struct {
 	*NXActionHeader
-	pad [6]uint8
 
 	props []Property
 }
@@ -1843,6 +1835,7 @@ func (a *NXActionController2) MarshalBinary() (data []byte, err error) {
 	}
 	copy(data[n:], b)
 	n += int(a.NXActionHeader.Len())
+	// 6 bytes for padding
 	n += 6
 
 	for _, prop := range a.props {