Introduce Stream - experimental API for low-level access to VPP API

Change-Id: I2698e11b76ff55d9730b47d4fee990be93349516
Signed-off-by: Ondrej Fabry <ofabry@cisco.com>

5 files changed, 860 insertions, 5 deletions

diff --git a/examples/binapi/gen.go b/examples/binapi/gen.go
index 7849d8d..46399f4 100644
--- a/examples/binapi/gen.go
+++ b/examples/binapi/gen.go
@@ -2,4 +2,4 @@ package binapi
 
 // Generate Go code from the VPP APIs located in the /usr/share/vpp/api directory.
 
-//go:generate binapi-generator --import-types=false af_packet interface interface_types ip memclnt vpe sr acl memif ip_types fib_types
+//go:generate binapi-generator --import-types=false mactime af_packet interface interface_types ip memclnt vpe sr acl memif ip_types fib_types
diff --git a/examples/binapi/mactime/mactime.ba.go b/examples/binapi/mactime/mactime.ba.go
new file mode 100644
index 0000000..38a206e
--- /dev/null
+++ b/examples/binapi/mactime/mactime.ba.go
@@ -0,0 +1,684 @@
+// Code generated by GoVPP's binapi-generator. DO NOT EDIT.
+// versions:
+//  binapi-generator: v0.4.0-dev
+//  VPP:              20.05-release
+// source: /usr/share/vpp/api/plugins/mactime.api.json
+
+/*
+Package mactime contains generated code for VPP API file mactime.api (2.0.0).
+
+It consists of:
+	  2 aliases
+	  6 enums
+	  7 messages
+	  2 types
+*/
+package mactime
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"io"
+	"math"
+	"strconv"
+
+	api "git.fd.io/govpp.git/api"
+	codec "git.fd.io/govpp.git/codec"
+	struc "github.com/lunixbochs/struc"
+
+	interface_types "git.fd.io/govpp.git/examples/binapi/interface_types"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the GoVPP api package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// GoVPP api package needs to be updated.
+const _ = api.GoVppAPIPackageIsVersion2 // please upgrade the GoVPP api package
+
+const (
+	// ModuleName is the name of this module.
+	ModuleName = "mactime"
+	// APIVersion is the API version of this module.
+	APIVersion = "2.0.0"
+	// VersionCrc is the CRC of this module.
+	VersionCrc = 0x9283d3e
+)
+
+type IfStatusFlags = interface_types.IfStatusFlags
+
+type IfType = interface_types.IfType
+
+type LinkDuplex = interface_types.LinkDuplex
+
+type MtuProto = interface_types.MtuProto
+
+type RxMode = interface_types.RxMode
+
+type SubIfFlags = interface_types.SubIfFlags
+
+type InterfaceIndex = interface_types.InterfaceIndex
+
+// MacAddress represents VPP binary API alias 'mac_address'.
+type MacAddress [6]uint8
+
+// MactimeTimeRange represents VPP binary API type 'mactime_time_range'.
+type MactimeTimeRange struct {
+	Start float64 `binapi:"f64,name=start" json:"start,omitempty"`
+	End   float64 `binapi:"f64,name=end" json:"end,omitempty"`
+}
+
+func (*MactimeTimeRange) GetTypeName() string { return "mactime_time_range" }
+
+// TimeRange represents VPP binary API type 'time_range'.
+type TimeRange struct {
+	Start float64 `binapi:"f64,name=start" json:"start,omitempty"`
+	End   float64 `binapi:"f64,name=end" json:"end,omitempty"`
+}
+
+func (*TimeRange) GetTypeName() string { return "time_range" }
+
+// MactimeAddDelRange represents VPP binary API message 'mactime_add_del_range'.
+type MactimeAddDelRange struct {
+	IsAdd      bool        `binapi:"bool,name=is_add" json:"is_add,omitempty"`
+	Drop       bool        `binapi:"bool,name=drop" json:"drop,omitempty"`
+	Allow      bool        `binapi:"bool,name=allow" json:"allow,omitempty"`
+	AllowQuota uint8       `binapi:"u8,name=allow_quota" json:"allow_quota,omitempty"`
+	NoUDP10001 bool        `binapi:"bool,name=no_udp_10001" json:"no_udp_10001,omitempty"`
+	DataQuota  uint64      `binapi:"u64,name=data_quota" json:"data_quota,omitempty"`
+	MacAddress MacAddress  `binapi:"mac_address,name=mac_address" json:"mac_address,omitempty"`
+	DeviceName string      `binapi:"string[64],name=device_name" json:"device_name,omitempty" struc:"[64]byte"`
+	Count      uint32      `binapi:"u32,name=count" json:"count,omitempty" struc:"sizeof=Ranges"`
+	Ranges     []TimeRange `binapi:"time_range[count],name=ranges" json:"ranges,omitempty"`
+}
+
+func (m *MactimeAddDelRange) Reset()                        { *m = MactimeAddDelRange{} }
+func (*MactimeAddDelRange) GetMessageName() string          { return "mactime_add_del_range" }
+func (*MactimeAddDelRange) GetCrcString() string            { return "101858ef" }
+func (*MactimeAddDelRange) GetMessageType() api.MessageType { return api.RequestMessage }
+
+func (m *MactimeAddDelRange) Size() int {
+	if m == nil {
+		return 0
+	}
+	var size int
+	// field[1] m.IsAdd
+	size += 1
+	// field[1] m.Drop
+	size += 1
+	// field[1] m.Allow
+	size += 1
+	// field[1] m.AllowQuota
+	size += 1
+	// field[1] m.NoUDP10001
+	size += 1
+	// field[1] m.DataQuota
+	size += 8
+	// field[1] m.MacAddress
+	size += 6
+	// field[1] m.DeviceName
+	size += 64
+	// field[1] m.Count
+	size += 4
+	// field[1] m.Ranges
+	for j1 := 0; j1 < len(m.Ranges); j1++ {
+		var s1 TimeRange
+		_ = s1
+		if j1 < len(m.Ranges) {
+			s1 = m.Ranges[j1]
+		}
+		// field[2] s1.Start
+		size += 8
+		// field[2] s1.End
+		size += 8
+	}
+	return size
+}
+func (m *MactimeAddDelRange) Marshal(b []byte) ([]byte, error) {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	var buf []byte
+	if b == nil {
+		buf = make([]byte, m.Size())
+	} else {
+		buf = b
+	}
+	// field[1] m.IsAdd
+	if m.IsAdd {
+		buf[pos] = 1
+	}
+	pos += 1
+	// field[1] m.Drop
+	if m.Drop {
+		buf[pos] = 1
+	}
+	pos += 1
+	// field[1] m.Allow
+	if m.Allow {
+		buf[pos] = 1
+	}
+	pos += 1
+	// field[1] m.AllowQuota
+	buf[pos] = uint8(m.AllowQuota)
+	pos += 1
+	// field[1] m.NoUDP10001
+	if m.NoUDP10001 {
+		buf[pos] = 1
+	}
+	pos += 1
+	// field[1] m.DataQuota
+	o.PutUint64(buf[pos:pos+8], uint64(m.DataQuota))
+	pos += 8
+	// field[1] m.MacAddress
+	for i := 0; i < 6; i++ {
+		var x uint8
+		if i < len(m.MacAddress) {
+			x = uint8(m.MacAddress[i])
+		}
+		buf[pos] = uint8(x)
+		pos += 1
+	}
+	// field[1] m.DeviceName
+	copy(buf[pos:pos+64], m.DeviceName)
+	pos += 64
+	// field[1] m.Count
+	o.PutUint32(buf[pos:pos+4], uint32(len(m.Ranges)))
+	pos += 4
+	// field[1] m.Ranges
+	for j1 := 0; j1 < len(m.Ranges); j1++ {
+		var v1 TimeRange
+		if j1 < len(m.Ranges) {
+			v1 = m.Ranges[j1]
+		}
+		// field[2] v1.Start
+		o.PutUint64(buf[pos:pos+8], math.Float64bits(float64(v1.Start)))
+		pos += 8
+		// field[2] v1.End
+		o.PutUint64(buf[pos:pos+8], math.Float64bits(float64(v1.End)))
+		pos += 8
+	}
+	return buf, nil
+}
+func (m *MactimeAddDelRange) Unmarshal(tmp []byte) error {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	// field[1] m.IsAdd
+	m.IsAdd = tmp[pos] != 0
+	pos += 1
+	// field[1] m.Drop
+	m.Drop = tmp[pos] != 0
+	pos += 1
+	// field[1] m.Allow
+	m.Allow = tmp[pos] != 0
+	pos += 1
+	// field[1] m.AllowQuota
+	m.AllowQuota = uint8(tmp[pos])
+	pos += 1
+	// field[1] m.NoUDP10001
+	m.NoUDP10001 = tmp[pos] != 0
+	pos += 1
+	// field[1] m.DataQuota
+	m.DataQuota = uint64(o.Uint64(tmp[pos : pos+8]))
+	pos += 8
+	// field[1] m.MacAddress
+	for i := 0; i < len(m.MacAddress); i++ {
+		m.MacAddress[i] = uint8(tmp[pos])
+		pos += 1
+	}
+	// field[1] m.DeviceName
+	{
+		nul := bytes.Index(tmp[pos:pos+64], []byte{0x00})
+		m.DeviceName = codec.DecodeString(tmp[pos : pos+nul])
+		pos += 64
+	}
+	// field[1] m.Count
+	m.Count = uint32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	// field[1] m.Ranges
+	m.Ranges = make([]TimeRange, int(m.Count))
+	for j1 := 0; j1 < int(m.Count); j1++ {
+		// field[2] m.Ranges[j1].Start
+		m.Ranges[j1].Start = float64(math.Float64frombits(o.Uint64(tmp[pos : pos+8])))
+		pos += 8
+		// field[2] m.Ranges[j1].End
+		m.Ranges[j1].End = float64(math.Float64frombits(o.Uint64(tmp[pos : pos+8])))
+		pos += 8
+	}
+	return nil
+}
+
+// MactimeAddDelRangeReply represents VPP binary API message 'mactime_add_del_range_reply'.
+type MactimeAddDelRangeReply struct {
+	Retval int32 `binapi:"i32,name=retval" json:"retval,omitempty"`
+}
+
+func (m *MactimeAddDelRangeReply) Reset()                        { *m = MactimeAddDelRangeReply{} }
+func (*MactimeAddDelRangeReply) GetMessageName() string          { return "mactime_add_del_range_reply" }
+func (*MactimeAddDelRangeReply) GetCrcString() string            { return "e8d4e804" }
+func (*MactimeAddDelRangeReply) GetMessageType() api.MessageType { return api.ReplyMessage }
+
+func (m *MactimeAddDelRangeReply) Size() int {
+	if m == nil {
+		return 0
+	}
+	var size int
+	// field[1] m.Retval
+	size += 4
+	return size
+}
+func (m *MactimeAddDelRangeReply) Marshal(b []byte) ([]byte, error) {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	var buf []byte
+	if b == nil {
+		buf = make([]byte, m.Size())
+	} else {
+		buf = b
+	}
+	// field[1] m.Retval
+	o.PutUint32(buf[pos:pos+4], uint32(m.Retval))
+	pos += 4
+	return buf, nil
+}
+func (m *MactimeAddDelRangeReply) Unmarshal(tmp []byte) error {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	// field[1] m.Retval
+	m.Retval = int32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	return nil
+}
+
+// MactimeDetails represents VPP binary API message 'mactime_details'.
+type MactimeDetails struct {
+	PoolIndex       uint32             `binapi:"u32,name=pool_index" json:"pool_index,omitempty"`
+	MacAddress      MacAddress         `binapi:"mac_address,name=mac_address" json:"mac_address,omitempty"`
+	DataQuota       uint64             `binapi:"u64,name=data_quota" json:"data_quota,omitempty"`
+	DataUsedInRange uint64             `binapi:"u64,name=data_used_in_range" json:"data_used_in_range,omitempty"`
+	Flags           uint32             `binapi:"u32,name=flags" json:"flags,omitempty"`
+	DeviceName      string             `binapi:"string[64],name=device_name" json:"device_name,omitempty" struc:"[64]byte"`
+	Nranges         uint32             `binapi:"u32,name=nranges" json:"nranges,omitempty" struc:"sizeof=Ranges"`
+	Ranges          []MactimeTimeRange `binapi:"mactime_time_range[nranges],name=ranges" json:"ranges,omitempty"`
+}
+
+func (m *MactimeDetails) Reset()                        { *m = MactimeDetails{} }
+func (*MactimeDetails) GetMessageName() string          { return "mactime_details" }
+func (*MactimeDetails) GetCrcString() string            { return "44921c06" }
+func (*MactimeDetails) GetMessageType() api.MessageType { return api.ReplyMessage }
+
+func (m *MactimeDetails) Size() int {
+	if m == nil {
+		return 0
+	}
+	var size int
+	// field[1] m.PoolIndex
+	size += 4
+	// field[1] m.MacAddress
+	size += 6
+	// field[1] m.DataQuota
+	size += 8
+	// field[1] m.DataUsedInRange
+	size += 8
+	// field[1] m.Flags
+	size += 4
+	// field[1] m.DeviceName
+	size += 64
+	// field[1] m.Nranges
+	size += 4
+	// field[1] m.Ranges
+	for j1 := 0; j1 < len(m.Ranges); j1++ {
+		var s1 MactimeTimeRange
+		_ = s1
+		if j1 < len(m.Ranges) {
+			s1 = m.Ranges[j1]
+		}
+		// field[2] s1.Start
+		size += 8
+		// field[2] s1.End
+		size += 8
+	}
+	return size
+}
+func (m *MactimeDetails) Marshal(b []byte) ([]byte, error) {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	var buf []byte
+	if b == nil {
+		buf = make([]byte, m.Size())
+	} else {
+		buf = b
+	}
+	// field[1] m.PoolIndex
+	o.PutUint32(buf[pos:pos+4], uint32(m.PoolIndex))
+	pos += 4
+	// field[1] m.MacAddress
+	for i := 0; i < 6; i++ {
+		var x uint8
+		if i < len(m.MacAddress) {
+			x = uint8(m.MacAddress[i])
+		}
+		buf[pos] = uint8(x)
+		pos += 1
+	}
+	// field[1] m.DataQuota
+	o.PutUint64(buf[pos:pos+8], uint64(m.DataQuota))
+	pos += 8
+	// field[1] m.DataUsedInRange
+	o.PutUint64(buf[pos:pos+8], uint64(m.DataUsedInRange))
+	pos += 8
+	// field[1] m.Flags
+	o.PutUint32(buf[pos:pos+4], uint32(m.Flags))
+	pos += 4
+	// field[1] m.DeviceName
+	copy(buf[pos:pos+64], m.DeviceName)
+	pos += 64
+	// field[1] m.Nranges
+	o.PutUint32(buf[pos:pos+4], uint32(len(m.Ranges)))
+	pos += 4
+	// field[1] m.Ranges
+	for j1 := 0; j1 < len(m.Ranges); j1++ {
+		var v1 MactimeTimeRange
+		if j1 < len(m.Ranges) {
+			v1 = m.Ranges[j1]
+		}
+		// field[2] v1.Start
+		o.PutUint64(buf[pos:pos+8], math.Float64bits(float64(v1.Start)))
+		pos += 8
+		// field[2] v1.End
+		o.PutUint64(buf[pos:pos+8], math.Float64bits(float64(v1.End)))
+		pos += 8
+	}
+	return buf, nil
+}
+func (m *MactimeDetails) Unmarshal(tmp []byte) error {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	// field[1] m.PoolIndex
+	m.PoolIndex = uint32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	// field[1] m.MacAddress
+	for i := 0; i < len(m.MacAddress); i++ {
+		m.MacAddress[i] = uint8(tmp[pos])
+		pos += 1
+	}
+	// field[1] m.DataQuota
+	m.DataQuota = uint64(o.Uint64(tmp[pos : pos+8]))
+	pos += 8
+	// field[1] m.DataUsedInRange
+	m.DataUsedInRange = uint64(o.Uint64(tmp[pos : pos+8]))
+	pos += 8
+	// field[1] m.Flags
+	m.Flags = uint32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	// field[1] m.DeviceName
+	{
+		nul := bytes.Index(tmp[pos:pos+64], []byte{0x00})
+		m.DeviceName = codec.DecodeString(tmp[pos : pos+nul])
+		pos += 64
+	}
+	// field[1] m.Nranges
+	m.Nranges = uint32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	// field[1] m.Ranges
+	m.Ranges = make([]MactimeTimeRange, int(m.Nranges))
+	for j1 := 0; j1 < int(m.Nranges); j1++ {
+		// field[2] m.Ranges[j1].Start
+		m.Ranges[j1].Start = float64(math.Float64frombits(o.Uint64(tmp[pos : pos+8])))
+		pos += 8
+		// field[2] m.Ranges[j1].End
+		m.Ranges[j1].End = float64(math.Float64frombits(o.Uint64(tmp[pos : pos+8])))
+		pos += 8
+	}
+	return nil
+}
+
+// MactimeDump represents VPP binary API message 'mactime_dump'.
+type MactimeDump struct {
+	MyTableEpoch uint32 `binapi:"u32,name=my_table_epoch" json:"my_table_epoch,omitempty"`
+}
+
+func (m *MactimeDump) Reset()                        { *m = MactimeDump{} }
+func (*MactimeDump) GetMessageName() string          { return "mactime_dump" }
+func (*MactimeDump) GetCrcString() string            { return "8f454e23" }
+func (*MactimeDump) GetMessageType() api.MessageType { return api.RequestMessage }
+
+func (m *MactimeDump) Size() int {
+	if m == nil {
+		return 0
+	}
+	var size int
+	// field[1] m.MyTableEpoch
+	size += 4
+	return size
+}
+func (m *MactimeDump) Marshal(b []byte) ([]byte, error) {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	var buf []byte
+	if b == nil {
+		buf = make([]byte, m.Size())
+	} else {
+		buf = b
+	}
+	// field[1] m.MyTableEpoch
+	o.PutUint32(buf[pos:pos+4], uint32(m.MyTableEpoch))
+	pos += 4
+	return buf, nil
+}
+func (m *MactimeDump) Unmarshal(tmp []byte) error {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	// field[1] m.MyTableEpoch
+	m.MyTableEpoch = uint32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	return nil
+}
+
+// MactimeDumpReply represents VPP binary API message 'mactime_dump_reply'.
+type MactimeDumpReply struct {
+	Retval     int32  `binapi:"i32,name=retval" json:"retval,omitempty"`
+	TableEpoch uint32 `binapi:"u32,name=table_epoch" json:"table_epoch,omitempty"`
+}
+
+func (m *MactimeDumpReply) Reset()                        { *m = MactimeDumpReply{} }
+func (*MactimeDumpReply) GetMessageName() string          { return "mactime_dump_reply" }
+func (*MactimeDumpReply) GetCrcString() string            { return "49bcc753" }
+func (*MactimeDumpReply) GetMessageType() api.MessageType { return api.ReplyMessage }
+
+func (m *MactimeDumpReply) Size() int {
+	if m == nil {
+		return 0
+	}
+	var size int
+	// field[1] m.Retval
+	size += 4
+	// field[1] m.TableEpoch
+	size += 4
+	return size
+}
+func (m *MactimeDumpReply) Marshal(b []byte) ([]byte, error) {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	var buf []byte
+	if b == nil {
+		buf = make([]byte, m.Size())
+	} else {
+		buf = b
+	}
+	// field[1] m.Retval
+	o.PutUint32(buf[pos:pos+4], uint32(m.Retval))
+	pos += 4
+	// field[1] m.TableEpoch
+	o.PutUint32(buf[pos:pos+4], uint32(m.TableEpoch))
+	pos += 4
+	return buf, nil
+}
+func (m *MactimeDumpReply) Unmarshal(tmp []byte) error {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	// field[1] m.Retval
+	m.Retval = int32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	// field[1] m.TableEpoch
+	m.TableEpoch = uint32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	return nil
+}
+
+// MactimeEnableDisable represents VPP binary API message 'mactime_enable_disable'.
+type MactimeEnableDisable struct {
+	EnableDisable bool           `binapi:"bool,name=enable_disable" json:"enable_disable,omitempty"`
+	SwIfIndex     InterfaceIndex `binapi:"interface_index,name=sw_if_index" json:"sw_if_index,omitempty"`
+}
+
+func (m *MactimeEnableDisable) Reset()                        { *m = MactimeEnableDisable{} }
+func (*MactimeEnableDisable) GetMessageName() string          { return "mactime_enable_disable" }
+func (*MactimeEnableDisable) GetCrcString() string            { return "3865946c" }
+func (*MactimeEnableDisable) GetMessageType() api.MessageType { return api.RequestMessage }
+
+func (m *MactimeEnableDisable) Size() int {
+	if m == nil {
+		return 0
+	}
+	var size int
+	// field[1] m.EnableDisable
+	size += 1
+	// field[1] m.SwIfIndex
+	size += 4
+	return size
+}
+func (m *MactimeEnableDisable) Marshal(b []byte) ([]byte, error) {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	var buf []byte
+	if b == nil {
+		buf = make([]byte, m.Size())
+	} else {
+		buf = b
+	}
+	// field[1] m.EnableDisable
+	if m.EnableDisable {
+		buf[pos] = 1
+	}
+	pos += 1
+	// field[1] m.SwIfIndex
+	o.PutUint32(buf[pos:pos+4], uint32(m.SwIfIndex))
+	pos += 4
+	return buf, nil
+}
+func (m *MactimeEnableDisable) Unmarshal(tmp []byte) error {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	// field[1] m.EnableDisable
+	m.EnableDisable = tmp[pos] != 0
+	pos += 1
+	// field[1] m.SwIfIndex
+	m.SwIfIndex = InterfaceIndex(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	return nil
+}
+
+// MactimeEnableDisableReply represents VPP binary API message 'mactime_enable_disable_reply'.
+type MactimeEnableDisableReply struct {
+	Retval int32 `binapi:"i32,name=retval" json:"retval,omitempty"`
+}
+
+func (m *MactimeEnableDisableReply) Reset()                        { *m = MactimeEnableDisableReply{} }
+func (*MactimeEnableDisableReply) GetMessageName() string          { return "mactime_enable_disable_reply" }
+func (*MactimeEnableDisableReply) GetCrcString() string            { return "e8d4e804" }
+func (*MactimeEnableDisableReply) GetMessageType() api.MessageType { return api.ReplyMessage }
+
+func (m *MactimeEnableDisableReply) Size() int {
+	if m == nil {
+		return 0
+	}
+	var size int
+	// field[1] m.Retval
+	size += 4
+	return size
+}
+func (m *MactimeEnableDisableReply) Marshal(b []byte) ([]byte, error) {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	var buf []byte
+	if b == nil {
+		buf = make([]byte, m.Size())
+	} else {
+		buf = b
+	}
+	// field[1] m.Retval
+	o.PutUint32(buf[pos:pos+4], uint32(m.Retval))
+	pos += 4
+	return buf, nil
+}
+func (m *MactimeEnableDisableReply) Unmarshal(tmp []byte) error {
+	o := binary.BigEndian
+	_ = o
+	pos := 0
+	_ = pos
+	// field[1] m.Retval
+	m.Retval = int32(o.Uint32(tmp[pos : pos+4]))
+	pos += 4
+	return nil
+}
+
+func init() { file_mactime_binapi_init() }
+func file_mactime_binapi_init() {
+	api.RegisterMessage((*MactimeAddDelRange)(nil), "mactime.MactimeAddDelRange")
+	api.RegisterMessage((*MactimeAddDelRangeReply)(nil), "mactime.MactimeAddDelRangeReply")
+	api.RegisterMessage((*MactimeDetails)(nil), "mactime.MactimeDetails")
+	api.RegisterMessage((*MactimeDump)(nil), "mactime.MactimeDump")
+	api.RegisterMessage((*MactimeDumpReply)(nil), "mactime.MactimeDumpReply")
+	api.RegisterMessage((*MactimeEnableDisable)(nil), "mactime.MactimeEnableDisable")
+	api.RegisterMessage((*MactimeEnableDisableReply)(nil), "mactime.MactimeEnableDisableReply")
+}
+
+// Messages returns list of all messages in this module.
+func AllMessages() []api.Message {
+	return []api.Message{
+		(*MactimeAddDelRange)(nil),
+		(*MactimeAddDelRangeReply)(nil),
+		(*MactimeDetails)(nil),
+		(*MactimeDump)(nil),
+		(*MactimeDumpReply)(nil),
+		(*MactimeEnableDisable)(nil),
+		(*MactimeEnableDisableReply)(nil),
+	}
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = api.RegisterMessage
+var _ = codec.DecodeString
+var _ = bytes.NewBuffer
+var _ = context.Background
+var _ = io.Copy
+var _ = strconv.Itoa
+var _ = struc.Pack
+var _ = binary.BigEndian
+var _ = math.Float32bits
diff --git a/examples/binapi/mactime/mactime_rpc.ba.go b/examples/binapi/mactime/mactime_rpc.ba.go
new file mode 100644
index 0000000..c35b708
--- /dev/null
+++ b/examples/binapi/mactime/mactime_rpc.ba.go
@@ -0,0 +1,74 @@
+// Code generated by GoVPP's binapi-generator. DO NOT EDIT.
+
+package mactime
+
+import (
+	"context"
+	"io"
+
+	api "git.fd.io/govpp.git/api"
+)
+
+// RPCService represents RPC service API for mactime module.
+type RPCService interface {
+	DumpMactime(ctx context.Context, in *MactimeDump) (RPCService_DumpMactimeClient, error)
+	MactimeAddDelRange(ctx context.Context, in *MactimeAddDelRange) (*MactimeAddDelRangeReply, error)
+	MactimeEnableDisable(ctx context.Context, in *MactimeEnableDisable) (*MactimeEnableDisableReply, error)
+}
+
+type serviceClient struct {
+	ch api.Channel
+}
+
+func NewServiceClient(ch api.Channel) RPCService {
+	return &serviceClient{ch}
+}
+
+func (c *serviceClient) DumpMactime(ctx context.Context, in *MactimeDump) (RPCService_DumpMactimeClient, error) {
+	stream := c.ch.SendMultiRequest(in)
+	x := &serviceClient_DumpMactimeClient{stream}
+	return x, nil
+}
+
+type RPCService_DumpMactimeClient interface {
+	Recv() (*MactimeDetails, error)
+}
+
+type serviceClient_DumpMactimeClient struct {
+	api.MultiRequestCtx
+}
+
+func (c *serviceClient_DumpMactimeClient) Recv() (*MactimeDetails, error) {
+	m := new(MactimeDetails)
+	stop, err := c.MultiRequestCtx.ReceiveReply(m)
+	if err != nil {
+		return nil, err
+	}
+	if stop {
+		return nil, io.EOF
+	}
+	return m, nil
+}
+
+func (c *serviceClient) MactimeAddDelRange(ctx context.Context, in *MactimeAddDelRange) (*MactimeAddDelRangeReply, error) {
+	out := new(MactimeAddDelRangeReply)
+	err := c.ch.SendRequest(in).ReceiveReply(out)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *serviceClient) MactimeEnableDisable(ctx context.Context, in *MactimeEnableDisable) (*MactimeEnableDisableReply, error) {
+	out := new(MactimeEnableDisableReply)
+	err := c.ch.SendRequest(in).ReceiveReply(out)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = api.RegisterMessage
+var _ = context.Background
+var _ = io.Copy
diff --git a/examples/perf-bench/perf-bench.go b/examples/perf-bench/perf-bench.go
index 81d183c..a7ec146 100644
--- a/examples/perf-bench/perf-bench.go
+++ b/examples/perf-bench/perf-bench.go
@@ -17,6 +17,7 @@
 package main
 
 import (
+	"context"
 	"flag"
 	"fmt"
 	"log"
@@ -98,9 +99,11 @@ func main() {
 	if sync {
 		// run synchronous test
 		syncTest(ch, cnt)
+		//syncTest2(conn, cnt)
 	} else {
 		// run asynchronous test
 		asyncTest(ch, cnt)
+		//asyncTest2(conn, cnt)
 	}
 
 	elapsed := time.Since(start)
@@ -123,6 +126,27 @@ func syncTest(ch api.Channel, cnt int) {
 	}
 }
 
+func syncTest2(conn api.Connection, cnt int) {
+	fmt.Printf("Running synchronous perf test with %d requests...\n", cnt)
+
+	stream, err := conn.NewStream(context.Background())
+	if err != nil {
+		log.Fatalln("Error NewStream:", err)
+	}
+	for i := 0; i < cnt; i++ {
+		if err := stream.SendMsg(&vpe.ControlPing{}); err != nil {
+			log.Fatalln("Error SendMsg:", err)
+		}
+		if msg, err := stream.RecvMsg(); err != nil {
+			log.Fatalln("Error RecvMsg:", err)
+		} else if _, ok := msg.(*vpe.ControlPingReply); ok {
+			// ok
+		} else {
+			log.Fatalf("unexpected reply: %v", msg.GetMessageName())
+		}
+	}
+}
+
 func asyncTest(ch api.Channel, cnt int) {
 	fmt.Printf("Running asynchronous perf test with %d requests...\n", cnt)
 
@@ -143,3 +167,35 @@ func asyncTest(ch api.Channel, cnt int) {
 		}
 	}
 }
+
+func asyncTest2(conn api.Connection, cnt int) {
+	fmt.Printf("Running asynchronous perf test with %d requests...\n", cnt)
+
+	ctxChan := make(chan api.Stream, cnt)
+
+	go func() {
+		for i := 0; i < cnt; i++ {
+			stream, err := conn.NewStream(context.Background())
+			if err != nil {
+				log.Fatalln("Error NewStream:", err)
+			}
+			if err := stream.SendMsg(&vpe.ControlPing{}); err != nil {
+				log.Fatalln("Error SendMsg:", err)
+			}
+			ctxChan <- stream
+		}
+		close(ctxChan)
+		fmt.Printf("Sending asynchronous requests finished\n")
+	}()
+
+	for ctx := range ctxChan {
+		if msg, err := ctx.RecvMsg(); err != nil {
+			log.Fatalln("Error RecvMsg:", err)
+		} else if _, ok := msg.(*vpe.ControlPingReply); ok {
+			// ok
+		} else {
+			log.Fatalf("unexpected reply: %v", msg.GetMessageName())
+		}
+		ctx.Close()
+	}
+}
diff --git a/examples/simple-client/simple_client.go b/examples/simple-client/simple_client.go
index 096c222..803b2e1 100644
--- a/examples/simple-client/simple_client.go
+++ b/examples/simple-client/simple_client.go
@@ -17,11 +17,11 @@
 package main
 
 import (
+	"context"
 	"flag"
 	"fmt"
 	"log"
 	"os"
-	"strings"
 
 	"git.fd.io/govpp.git"
 	"git.fd.io/govpp.git/adapter/socketclient"
@@ -31,6 +31,7 @@ import (
 	"git.fd.io/govpp.git/examples/binapi/interfaces"
 	"git.fd.io/govpp.git/examples/binapi/ip"
 	"git.fd.io/govpp.git/examples/binapi/ip_types"
+	"git.fd.io/govpp.git/examples/binapi/mactime"
 	"git.fd.io/govpp.git/examples/binapi/vpe"
 )
 
@@ -82,6 +83,8 @@ func main() {
 	ipAddressDump(ch, idx)
 	interfaceNotifications(ch, idx)
 
+	mactimeDump(conn)
+
 	if len(Errors) > 0 {
 		fmt.Printf("finished with %d errors\n", len(Errors))
 		os.Exit(1)
@@ -110,7 +113,7 @@ func vppVersion(ch api.Channel) {
 	}
 	fmt.Printf("reply: %+v\n", reply)
 
-	fmt.Printf("VPP version: %q\n", cleanString(reply.Version))
+	fmt.Printf("VPP version: %q\n", reply.Version)
 	fmt.Println("OK")
 	fmt.Println()
 }
@@ -282,6 +285,44 @@ func interfaceNotifications(ch api.Channel, index interfaces.InterfaceIndex) {
 	fmt.Println()
 }
 
-func cleanString(str string) string {
-	return strings.Split(str, "\x00")[0]
+func mactimeDump(conn api.Connection) {
+	fmt.Println("Sending mactime dump")
+
+	ctx := context.Background()
+
+	stream, err := conn.NewStream(ctx)
+	if err != nil {
+		panic(err)
+	}
+	defer stream.Close()
+
+	if err := stream.SendMsg(&mactime.MactimeDump{}); err != nil {
+		logError(err, "sending mactime dump")
+		return
+	}
+
+Loop:
+	for {
+		msg, err := stream.RecvMsg()
+		if err != nil {
+			logError(err, "dumping mactime")
+			return
+		}
+
+		switch msg.(type) {
+		case *mactime.MactimeDetails:
+			fmt.Printf(" - MactimeDetails: %+v\n", msg)
+
+		case *mactime.MactimeDumpReply:
+			fmt.Printf(" - MactimeDumpReply: %+v\n", msg)
+			break Loop
+
+		default:
+			logError(err, "unexpected message")
+			return
+		}
+	}
+
+	fmt.Println("OK")
+	fmt.Println()
 }