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port.go
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port.go
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package openflow15
import (
"encoding/binary"
"errors"
"net"
"k8s.io/klog/v2"
"antrea.io/libOpenflow/common"
"antrea.io/libOpenflow/util"
)
// ofp_port
type Port struct {
PortNo uint32
Length uint16
Pad []byte // 2 bytes
HWAddr net.HardwareAddr
pad2 []byte // 2 bytes for 64bit alignment
Name []byte // Size 16
Config uint32
State uint32
Properties []util.Message
}
// ofp_port_desc_prop_type
const (
PDPT_ETHERNET = 0 /* Ethernet property. */
PDPT_OPTICAL = 1 /* Optical property. */
PDPT_PIPELINE_INPUT = 2 /* Ingress pipeline fields. */
PDPT_PIPELINE_OUTPUT = 3 /* Egress pipeline fields. */
PDPT_RECIRCULATE = 4 /* Recirculation property. */
PDPT_EXPERIMENTER = 0xFFFF /* Experimenter property. */
)
func NewPort(num uint32) *Port {
p := new(Port)
p.HWAddr = make([]byte, ETH_ALEN)
p.Name = make([]byte, 16)
p.PortNo = num
return p
}
func (p *Port) Len() (n uint16) {
n = 40
for _, prop := range p.Properties {
n += prop.Len()
}
return n
}
func (p *Port) MarshalBinary() (data []byte, err error) {
data = make([]byte, int(p.Len()))
binary.BigEndian.PutUint32(data, p.PortNo)
var n uint16 = 4
p.Length = p.Len()
binary.BigEndian.PutUint16(data[n:], p.Length)
n += 2
n += 2 // Pad
copy(data[n:], p.HWAddr)
n += uint16(len(p.HWAddr))
n += 2 // Pad2
copy(data[n:], p.Name)
n += uint16(len(p.Name))
binary.BigEndian.PutUint32(data[n:], p.Config)
n += 4
binary.BigEndian.PutUint32(data[n:], p.State)
n += 4
for _, prop := range p.Properties {
var bytes []byte
bytes, err = prop.MarshalBinary()
if err != nil {
return
}
copy(data[n:], bytes)
n += prop.Len()
}
return
}
func (p *Port) UnmarshalBinary(data []byte) (err error) {
p.PortNo = binary.BigEndian.Uint32(data)
var n uint16 = 4
p.Length = binary.BigEndian.Uint16(data[n:])
n += 2
n += 2 // Pad
copy(p.HWAddr, data[n:])
n += 6
n += 2 // Pad2
copy(p.Name, data[n:])
n += 16
p.Config = binary.BigEndian.Uint32(data[n:])
n += 4
p.State = binary.BigEndian.Uint32(data[n:])
n += 4
for n < p.Length {
var prop util.Message
switch binary.BigEndian.Uint16(data[n:]) {
case PDPT_ETHERNET:
prop = new(PortDescPropEthernet)
case PDPT_OPTICAL:
prop = new(PortDescPropOptical)
case PDPT_PIPELINE_INPUT:
prop = new(PortDescPropOxm)
case PDPT_PIPELINE_OUTPUT:
prop = new(PortDescPropOxm)
case PDPT_RECIRCULATE:
prop = new(PortDescPropRecirculate)
case PDPT_EXPERIMENTER:
prop = new(PropExperimenter)
default:
err = errors.New("An unknown property type was received")
return
}
err = prop.UnmarshalBinary(data[n:])
if err != nil {
klog.ErrorS(err, "Failed to unmarshal Port's Properties", "data", data[n:])
return err
}
n += prop.Len()
p.Properties = append(p.Properties, prop)
}
return nil
}
// ofp_port_desc_prop_ethernet
type PortDescPropEthernet struct {
Header PropHeader
Pad []byte // 4 bytes
Curr uint32
Advertised uint32
Supported uint32
Peer uint32
CurrSpeed uint32
MaxSpeed uint32
}
func NewPortDescPropEthernet() *PortDescPropEthernet {
n := new(PortDescPropEthernet)
n.Header.Type = PDPT_ETHERNET
n.Pad = make([]byte, 4)
return n
}
func (prop *PortDescPropEthernet) Len() uint16 {
n := prop.Header.Len()
n += 28
return n
}
func (prop *PortDescPropEthernet) MarshalBinary() (data []byte, err error) {
data = make([]byte, prop.Len())
var bytes []byte
prop.Header.Length = prop.Len()
bytes, err = prop.Header.MarshalBinary()
if err != nil {
return
}
copy(data, bytes)
n := prop.Header.Len()
n += 4 // Pad
binary.BigEndian.PutUint32(data[n:], prop.Curr)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.Advertised)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.Supported)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.Peer)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.CurrSpeed)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.MaxSpeed)
n += 4
return
}
func (prop *PortDescPropEthernet) UnmarshalBinary(data []byte) (err error) {
var n uint16 = 0
err = prop.Header.UnmarshalBinary(data[n:])
if err != nil {
return
}
n += prop.Header.Len()
n += 4 // Pad
prop.Curr = binary.BigEndian.Uint32(data[n:])
n += 4
prop.Advertised = binary.BigEndian.Uint32(data[n:])
n += 4
prop.Supported = binary.BigEndian.Uint32(data[n:])
n += 4
prop.Peer = binary.BigEndian.Uint32(data[n:])
n += 4
prop.CurrSpeed = binary.BigEndian.Uint32(data[n:])
n += 4
prop.MaxSpeed = binary.BigEndian.Uint32(data[n:])
n += 4
return
}
// ofp_port_desc_prop_optical
type PortDescPropOptical struct {
Header PropHeader
Pad []byte // 4 bytes
Supported uint32
TxMinFreqLmda uint32
TxMaxFreqLmda uint32
TxGridFreqLmda uint32
RxMinFreqLmda uint32
RxMaxFreqLmda uint32
RxGridFreqLmda uint32
TxPwrMin uint16
TxPwrMax uint16
}
// ofp_optical_port_features
const (
OPF_RX_TUNE = 1 << 0 /* Receiver is tunable */
OPF_TX_TUNE = 1 << 1 /* Transmit is tunable */
OPF_TX_PWR = 1 << 2 /* Power is configurable */
OPF_USE_FREQ = 1 << 3 /* Use Frequency, not wavelength */
)
func NewPortDescPropOptical() *PortDescPropOptical {
n := new(PortDescPropOptical)
n.Header.Type = PDPT_OPTICAL
n.Pad = make([]byte, 4)
return n
}
func (prop *PortDescPropOptical) Len() uint16 {
return 40
}
func (prop *PortDescPropOptical) MarshalBinary() (data []byte, err error) {
data = make([]byte, prop.Len())
var bytes []byte
prop.Header.Length = prop.Len()
bytes, err = prop.Header.MarshalBinary()
if err != nil {
return
}
copy(data, bytes)
n := prop.Header.Len()
n += 4 // Pad
binary.BigEndian.PutUint32(data[n:], prop.Supported)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.TxMinFreqLmda)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.TxMaxFreqLmda)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.TxGridFreqLmda)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.RxMinFreqLmda)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.RxMaxFreqLmda)
n += 4
binary.BigEndian.PutUint32(data[n:], prop.RxGridFreqLmda)
n += 4
binary.BigEndian.PutUint16(data[n:], prop.TxPwrMin)
n += 2
binary.BigEndian.PutUint16(data[n:], prop.TxPwrMax)
n += 2
return
}
func (prop *PortDescPropOptical) UnmarshalBinary(data []byte) (err error) {
var n uint16 = 0
err = prop.Header.UnmarshalBinary(data[n:])
if err != nil {
return
}
n += prop.Header.Len()
n += 4 // Pad
prop.Supported = binary.BigEndian.Uint32(data[n:])
n += 4
prop.TxMinFreqLmda = binary.BigEndian.Uint32(data[n:])
n += 4
prop.TxMaxFreqLmda = binary.BigEndian.Uint32(data[n:])
n += 4
prop.TxGridFreqLmda = binary.BigEndian.Uint32(data[n:])
n += 4
prop.RxMinFreqLmda = binary.BigEndian.Uint32(data[n:])
n += 4
prop.RxMaxFreqLmda = binary.BigEndian.Uint32(data[n:])
n += 4
prop.RxGridFreqLmda = binary.BigEndian.Uint32(data[n:])
n += 4
prop.TxPwrMin = binary.BigEndian.Uint16(data[n:])
n += 2
prop.TxPwrMax = binary.BigEndian.Uint16(data[n:])
n += 2
return
}
// ofp_port_desc_prop_oxm
type PortDescPropOxm struct {
Header PropHeader
OxmIds []uint32
}
func NewPortDescPropOxm(t uint16) *PortDescPropOxm {
n := new(PortDescPropOxm)
n.Header.Type = t // PDPT_PIPELINE_INPUT or PDPT_PIPELINE_OUTPUT
return n
}
func (prop *PortDescPropOxm) Len() uint16 {
n := prop.Header.Len()
n += uint16(len(prop.OxmIds) * 4)
return (n + 7) / 8 * 8
}
func (prop *PortDescPropOxm) MarshalBinary() (data []byte, err error) {
data = make([]byte, prop.Len())
var bytes []byte
prop.Header.Length = prop.Len()
bytes, err = prop.Header.MarshalBinary()
if err != nil {
return
}
copy(data, bytes)
n := prop.Header.Len()
for _, oxm := range prop.OxmIds {
binary.BigEndian.PutUint32(data[n:], oxm)
n += 4
}
return
}
func (prop *PortDescPropOxm) UnmarshalBinary(data []byte) (err error) {
var n uint16 = 0
err = prop.Header.UnmarshalBinary(data[n:])
if err != nil {
return
}
n += prop.Header.Len()
n += 4 // Pad
for n < prop.Header.Length {
oxm := binary.BigEndian.Uint32(data[n:])
prop.OxmIds = append(prop.OxmIds, oxm)
n += 4
}
return
}
// ofp_port_desc_prop_recirculate
type PortDescPropRecirculate struct {
Header PropHeader
PortNos []uint32
}
func NewPortDescPropRecirculate() *PortDescPropRecirculate {
n := new(PortDescPropRecirculate)
n.Header.Type = PDPT_RECIRCULATE
return n
}
func (prop *PortDescPropRecirculate) Len() uint16 {
n := prop.Header.Len()
n += uint16(len(prop.PortNos) * 4)
return (n + 7) / 8 * 8
}
func (prop *PortDescPropRecirculate) MarshalBinary() (data []byte, err error) {
data = make([]byte, prop.Len())
var bytes []byte
prop.Header.Length = prop.Len()
bytes, err = prop.Header.MarshalBinary()
if err != nil {
return
}
copy(data, bytes)
n := prop.Header.Len()
for _, p := range prop.PortNos {
binary.BigEndian.PutUint32(data[n:], p)
n += 4
}
return
}
func (prop *PortDescPropRecirculate) UnmarshalBinary(data []byte) (err error) {
var n uint16
err = prop.Header.UnmarshalBinary(data[n:])
if err != nil {
return
}
n += prop.Header.Len()
n += 4 // Pad
for n < prop.Header.Length {
p := binary.BigEndian.Uint32(data[n:])
prop.PortNos = append(prop.PortNos, p)
n += 4
}
return
}
// ofp_port_mod 1.5
type PortMod struct {
common.Header
PortNo uint32
pad []byte // 4 bytes
HWAddr []uint8 // 6 bytes
pad2 []byte // 2 bytes for 64byte alignment
Config uint32
Mask uint32
Properties []util.Message
}
func NewPortMod(port int) *PortMod {
p := new(PortMod)
p.Header = NewOfp15Header()
p.Header.Type = Type_PortMod
p.PortNo = uint32(port)
p.HWAddr = make([]byte, ETH_ALEN)
p.pad = make([]byte, 4)
p.pad2 = make([]byte, 2)
return p
}
func (p *PortMod) Len() (n uint16) {
n = p.Header.Len() + 24
for _, prop := range p.Properties {
n += prop.Len()
}
return
}
func (p *PortMod) MarshalBinary() (data []byte, err error) {
p.Header.Length = p.Len()
data, err = p.Header.MarshalBinary()
if err != nil {
return
}
b := make([]byte, 24)
n := 0
binary.BigEndian.PutUint32(b[n:], p.PortNo)
n += 4
copy(b[n:], p.pad)
n += 4
copy(b[n:], p.HWAddr)
n += ETH_ALEN
copy(b[n:], p.pad2)
n += 2
binary.BigEndian.PutUint32(b[n:], p.Config)
n += 4
binary.BigEndian.PutUint32(b[n:], p.Mask)
n += 4
data = append(data, b...)
for _, prop := range p.Properties {
var b []byte
b, err = prop.MarshalBinary()
if err != nil {
return
}
data = append(data, b...)
}
return
}
func (p *PortMod) UnmarshalBinary(data []byte) (err error) {
err = p.Header.UnmarshalBinary(data)
n := p.Header.Len()
p.PortNo = binary.BigEndian.Uint32(data[n:])
n += 4
copy(p.pad, data[n:n+4])
n += 4
copy(p.HWAddr, data[n:])
n += uint16(len(p.HWAddr))
copy(p.pad2, data[n:n+2])
n += 2
p.Config = binary.BigEndian.Uint32(data[n:])
n += 4
p.Mask = binary.BigEndian.Uint32(data[n:])
n += 4
for n < p.Length {
var prop util.Message
switch binary.BigEndian.Uint16(data[n:]) {
case PMPT_ETHERNET:
prop = new(PortModPropEthernet)
case PMPT_OPTICAL:
prop = new(PortModPropOptical)
case PMPT_EXPERIMENTER:
prop = new(PropExperimenter)
default:
err = errors.New("An unknown property type was received")
return
}
err = prop.UnmarshalBinary(data[n:])
if err != nil {
klog.ErrorS(err, "Failed to unmarshal PortMod's Properties", "data", data[n:])
return err
}
n += prop.Len()
p.Properties = append(p.Properties, prop)
}
return err
}
const (
ETH_ALEN = 6
MAX_PORT_NAME_LEN = 16
)
// ofp_port_config 1.5
const (
PC_PORT_DOWN = 1 << 0
PC_NO_RECV = 1 << 2
PC_NO_FWD = 1 << 5
PC_NO_PACKET_IN = 1 << 6
)
// ofp_port_state 1.5
const (
PS_LINK_DOWN = 1 << 0
PS_BLOCKED = 1 << 1
PS_LIVE = 1 << 2
)
// ofp_port_no 1.5
const (
P_MAX = 0xffffff00
P_UNSET = 0xfffffff7
P_IN_PORT = 0xfffffff8
P_TABLE = 0xfffffff9
P_NORMAL = 0xfffffffa
P_FLOOD = 0xfffffffb
P_ALL = 0xfffffffc
P_CONTROLLER = 0xfffffffd
P_LOCAL = 0xfffffffe
P_ANY = 0xffffffff
)
// ofp_port_features
const (
PF_10MB_HD = 1 << 0
PF_10MB_FD = 1 << 1
PF_100MB_HD = 1 << 2
PF_100MB_FD = 1 << 3
PF_1GB_HD = 1 << 4
PF_1GB_FD = 1 << 5
PF_10GB_FD = 1 << 6
PF_40GB_FD = 1 << 7
PF_100GB_FD = 1 << 8
PF_1TB_FD = 1 << 9
PF_OTHER = 1 << 10
PF_COPPER = 1 << 11
PF_FIBER = 1 << 12
PF_AUTONEG = 1 << 13
PF_PAUSE = 1 << 14
PF_PAUSE_ASYM = 1 << 15
)
// ofp_port_mod_prop_type
const (
PMPT_ETHERNET = 0 /* Ethernet property. */
PMPT_OPTICAL = 1 /* Optical property. */
PMPT_EXPERIMENTER = 0xFFFF /* Experimenter property. */
)
// ofp_port_mod_prop_ethernet
type PortModPropEthernet struct {
Header PropHeader
Advertise uint32
}
func NewPortModPropEthernet(adv uint32) *PortModPropEthernet {
p := new(PortModPropEthernet)
p.Header.Type = PMPT_ETHERNET
p.Advertise = adv
return p
}
func (prop *PortModPropEthernet) Len() uint16 {
n := prop.Header.Len()
n += 4
return n
}
func (prop *PortModPropEthernet) MarshalBinary() (data []byte, err error) {
prop.Header.Length = prop.Len()
data, err = prop.Header.MarshalBinary()
if err != nil {
return
}
bytes := make([]byte, 4)
binary.BigEndian.PutUint32(bytes[0:], prop.Advertise)
data = append(data, bytes...)
return
}
func (prop *PortModPropEthernet) UnmarshalBinary(data []byte) (err error) {
var n uint16
err = prop.Header.UnmarshalBinary(data[n:])
if err != nil {
return
}
n = prop.Header.Len()
prop.Advertise = binary.BigEndian.Uint32(data[n:])
return
}
// ofp_port_mod_prop_optical
type PortModPropOptical struct {
Header PropHeader
Configure uint32
FreqLmda uint32
FlOffset uint32
GridSpan uint32
TxPwr uint32
}
func NewPortModPropOptical(conf, freq, flof, grid, txpwr uint32) *PortModPropOptical {
p := new(PortModPropOptical)
p.Header.Type = PMPT_OPTICAL
p.Configure = conf
p.FreqLmda = freq
p.FlOffset = flof
p.GridSpan = grid
p.TxPwr = txpwr
return p
}
func (prop *PortModPropOptical) Len() uint16 {
n := prop.Header.Len()
n += 20
return n
}
func (prop *PortModPropOptical) MarshalBinary() (data []byte, err error) {
prop.Header.Length = prop.Len()
data, err = prop.Header.MarshalBinary()
if err != nil {
return
}
n := prop.Header.Len()
bytes := make([]byte, 20)
binary.BigEndian.PutUint32(bytes[n:], prop.Configure)
n += 4
binary.BigEndian.PutUint32(bytes[n:], prop.FreqLmda)
n += 4
binary.BigEndian.PutUint32(bytes[n:], prop.FlOffset)
n += 4
binary.BigEndian.PutUint32(bytes[n:], prop.GridSpan)
n += 4
binary.BigEndian.PutUint32(bytes[n:], prop.TxPwr)
data = append(data, bytes...)
return
}
func (prop *PortModPropOptical) UnmarshalBinary(data []byte) (err error) {
var n uint16
err = prop.Header.UnmarshalBinary(data[n:])
if err != nil {
return
}
n = prop.Header.Len()
prop.Configure = binary.BigEndian.Uint32(data[n:])
n += 4
prop.FreqLmda = binary.BigEndian.Uint32(data[n:])
n += 4
prop.FlOffset = binary.BigEndian.Uint32(data[n:])
n += 4
prop.GridSpan = binary.BigEndian.Uint32(data[n:])
n += 4
prop.TxPwr = binary.BigEndian.Uint32(data[n:])
n += 4
return
}
// ofp_port_status
type PortStatus struct {
common.Header
Reason uint8
pad []uint8 // Size 7
Desc Port
}
func NewPortStatus() *PortStatus {
p := new(PortStatus)
p.Header = NewOfp15Header()
p.Header.Type = Type_PortStatus
p.pad = make([]byte, 7)
return p
}
func (p *PortStatus) Len() (n uint16) {
n = p.Header.Len()
n += 8
n += p.Desc.Len()
return
}
func (s *PortStatus) MarshalBinary() (data []byte, err error) {
s.Header.Length = s.Len()
if data, err = s.Header.MarshalBinary(); err != nil {
return
}
b := make([]byte, 8)
n := 0
b[0] = s.Reason
n += 1
copy(b[n:], s.pad)
data = append(data, b...)
if b, err = s.Desc.MarshalBinary(); err != nil {
return
}
data = append(data, b...)
return
}
func (s *PortStatus) UnmarshalBinary(data []byte) error {
if err := s.Header.UnmarshalBinary(data); err != nil {
return err
}
n := int(s.Header.Len())
s.Reason = data[n]
n += 1
copy(s.pad, data[n:])
n += len(s.pad)
s.Desc = *NewPort(0)
err := s.Desc.UnmarshalBinary(data[n:])
if err != nil {
klog.ErrorS(err, "Failed to unmarshal PortStatus's Desc", "data", data[n:])
}
return err
}
// ofp_port_reason
const (
PR_ADD = iota
PR_DELETE
PR_MODIFY
)