vendor in go-criu and dependencies

Signed-off-by: Adrian Reber <areber@redhat.com>

8 files changed, 2126 insertions, 0 deletions

diff --git a/vendor/github.com/checkpoint-restore/go-criu/LICENSE b/vendor/github.com/checkpoint-restore/go-criu/LICENSE
new file mode 100644
index 000000000..8dada3eda
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/LICENSE
@@ -0,0 +1,201 @@
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diff --git a/vendor/github.com/checkpoint-restore/go-criu/README.md b/vendor/github.com/checkpoint-restore/go-criu/README.md
new file mode 100644
index 000000000..a79b4d7fb
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/README.md
@@ -0,0 +1,27 @@
+[![master](https://travis-ci.org/checkpoint-restore/go-criu.svg?branch=master)](https://travis-ci.org/checkpoint-restore/go-criu)
+
+## go-criu -- Go bindings for [CRIU](https://criu.org/)
+
+This repository provides Go bindings for CRIU. The code is based on the Go based PHaul
+implementation from the CRIU repository. For easier inclusion into other Go projects the
+CRIU Go bindings have been moved to this repository.
+
+The Go bindings provide an easy way to use the CRIU RPC calls from Go without the need
+to set up all the infrastructure to make the actual RPC connection to CRIU.
+
+The following example would print the version of CRIU:
+```
+	c := criu.MakeCriu()
+	version, err := c.GetCriuVersion()
+	fmt.Println(version)
+```
+or to just check if at least a certain CRIU version is installed:
+```
+	c := criu.MakeCriu()
+	result, err := c.IsCriuAtLeast(31100)
+```
+
+### License
+
+The license of go-criu is the Apache 2.0 license.
+
diff --git a/vendor/github.com/checkpoint-restore/go-criu/main.go b/vendor/github.com/checkpoint-restore/go-criu/main.go
new file mode 100644
index 000000000..cf94c376e
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/main.go
@@ -0,0 +1,250 @@
+package criu
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+	"strconv"
+	"syscall"
+
+	"github.com/checkpoint-restore/go-criu/rpc"
+	"github.com/golang/protobuf/proto"
+)
+
+// Criu struct
+type Criu struct {
+	swrkCmd *exec.Cmd
+	swrkSk  *os.File
+}
+
+// MakeCriu returns the Criu object required for most operations
+func MakeCriu() *Criu {
+	return &Criu{}
+}
+
+// Prepare sets up everything for the RPC communication to CRIU
+func (c *Criu) Prepare() error {
+	fds, err := syscall.Socketpair(syscall.AF_LOCAL, syscall.SOCK_SEQPACKET, 0)
+	if err != nil {
+		return err
+	}
+
+	cln := os.NewFile(uintptr(fds[0]), "criu-xprt-cln")
+	syscall.CloseOnExec(fds[0])
+	srv := os.NewFile(uintptr(fds[1]), "criu-xprt-srv")
+	defer srv.Close()
+
+	args := []string{"swrk", strconv.Itoa(fds[1])}
+	cmd := exec.Command("criu", args...)
+
+	err = cmd.Start()
+	if err != nil {
+		cln.Close()
+		return err
+	}
+
+	c.swrkCmd = cmd
+	c.swrkSk = cln
+
+	return nil
+}
+
+// Cleanup cleans up
+func (c *Criu) Cleanup() {
+	if c.swrkCmd != nil {
+		c.swrkSk.Close()
+		c.swrkSk = nil
+		c.swrkCmd.Wait()
+		c.swrkCmd = nil
+	}
+}
+
+func (c *Criu) sendAndRecv(reqB []byte) ([]byte, int, error) {
+	cln := c.swrkSk
+	_, err := cln.Write(reqB)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	respB := make([]byte, 2*4096)
+	n, err := cln.Read(respB)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	return respB, n, nil
+}
+
+func (c *Criu) doSwrk(reqType rpc.CriuReqType, opts *rpc.CriuOpts, nfy Notify) error {
+	resp, err := c.doSwrkWithResp(reqType, opts, nfy)
+	if err != nil {
+		return err
+	}
+	respType := resp.GetType()
+	if respType != reqType {
+		return errors.New("unexpected responce")
+	}
+
+	return nil
+}
+
+func (c *Criu) doSwrkWithResp(reqType rpc.CriuReqType, opts *rpc.CriuOpts, nfy Notify) (*rpc.CriuResp, error) {
+	var resp *rpc.CriuResp
+
+	req := rpc.CriuReq{
+		Type: &reqType,
+		Opts: opts,
+	}
+
+	if nfy != nil {
+		opts.NotifyScripts = proto.Bool(true)
+	}
+
+	if c.swrkCmd == nil {
+		err := c.Prepare()
+		if err != nil {
+			return nil, err
+		}
+
+		defer c.Cleanup()
+	}
+
+	for {
+		reqB, err := proto.Marshal(&req)
+		if err != nil {
+			return nil, err
+		}
+
+		respB, respS, err := c.sendAndRecv(reqB)
+		if err != nil {
+			return nil, err
+		}
+
+		resp = &rpc.CriuResp{}
+		err = proto.Unmarshal(respB[:respS], resp)
+		if err != nil {
+			return nil, err
+		}
+
+		if !resp.GetSuccess() {
+			return resp, fmt.Errorf("operation failed (msg:%s err:%d)",
+				resp.GetCrErrmsg(), resp.GetCrErrno())
+		}
+
+		respType := resp.GetType()
+		if respType != rpc.CriuReqType_NOTIFY {
+			break
+		}
+		if nfy == nil {
+			return resp, errors.New("unexpected notify")
+		}
+
+		notify := resp.GetNotify()
+		switch notify.GetScript() {
+		case "pre-dump":
+			err = nfy.PreDump()
+		case "post-dump":
+			err = nfy.PostDump()
+		case "pre-restore":
+			err = nfy.PreRestore()
+		case "post-restore":
+			err = nfy.PostRestore(notify.GetPid())
+		case "network-lock":
+			err = nfy.NetworkLock()
+		case "network-unlock":
+			err = nfy.NetworkUnlock()
+		case "setup-namespaces":
+			err = nfy.SetupNamespaces(notify.GetPid())
+		case "post-setup-namespaces":
+			err = nfy.PostSetupNamespaces()
+		case "post-resume":
+			err = nfy.PostResume()
+		default:
+			err = nil
+		}
+
+		if err != nil {
+			return resp, err
+		}
+
+		req = rpc.CriuReq{
+			Type:          &respType,
+			NotifySuccess: proto.Bool(true),
+		}
+	}
+
+	return resp, nil
+}
+
+// Dump dumps a process
+func (c *Criu) Dump(opts rpc.CriuOpts, nfy Notify) error {
+	return c.doSwrk(rpc.CriuReqType_DUMP, &opts, nfy)
+}
+
+// Restore restores a process
+func (c *Criu) Restore(opts rpc.CriuOpts, nfy Notify) error {
+	return c.doSwrk(rpc.CriuReqType_RESTORE, &opts, nfy)
+}
+
+// PreDump does a pre-dump
+func (c *Criu) PreDump(opts rpc.CriuOpts, nfy Notify) error {
+	return c.doSwrk(rpc.CriuReqType_PRE_DUMP, &opts, nfy)
+}
+
+// StartPageServer starts the page server
+func (c *Criu) StartPageServer(opts rpc.CriuOpts) error {
+	return c.doSwrk(rpc.CriuReqType_PAGE_SERVER, &opts, nil)
+}
+
+// StartPageServerChld starts the page server and returns PID and port
+func (c *Criu) StartPageServerChld(opts rpc.CriuOpts) (int, int, error) {
+	resp, err := c.doSwrkWithResp(rpc.CriuReqType_PAGE_SERVER_CHLD, &opts, nil)
+	if err != nil {
+		return 0, 0, err
+	}
+
+	return int(resp.Ps.GetPid()), int(resp.Ps.GetPort()), nil
+}
+
+// GetCriuVersion executes the VERSION RPC call and returns the version
+// as an integer. Major * 10000 + Minor * 100 + SubLevel
+func (c *Criu) GetCriuVersion() (int, error) {
+	resp, err := c.doSwrkWithResp(rpc.CriuReqType_VERSION, nil, nil)
+	if err != nil {
+		return 0, err
+	}
+
+	if resp.GetType() != rpc.CriuReqType_VERSION {
+		return 0, fmt.Errorf("Unexpected CRIU RPC response")
+	}
+
+	version := int(*resp.GetVersion().Major) * 10000
+	version += int(*resp.GetVersion().Minor) * 100
+	if resp.GetVersion().Sublevel != nil {
+		version += int(*resp.GetVersion().Sublevel)
+	}
+
+	if resp.GetVersion().Gitid != nil {
+		// taken from runc: if it is a git release -> increase minor by 1
+		version -= (version % 100)
+		version += 100
+	}
+
+	return version, nil
+}
+
+// IsCriuAtLeast checks if the version is at least the same
+// as the parameter version
+func (c *Criu) IsCriuAtLeast(version int) (bool, error) {
+	criuVersion, err := c.GetCriuVersion()
+	if err != nil {
+		return false, err
+	}
+
+	if criuVersion >= version {
+		return true, nil
+	}
+
+	return false, nil
+}
diff --git a/vendor/github.com/checkpoint-restore/go-criu/notify.go b/vendor/github.com/checkpoint-restore/go-criu/notify.go
new file mode 100644
index 000000000..1c8547b43
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/notify.go
@@ -0,0 +1,63 @@
+package criu
+
+//Notify interface
+type Notify interface {
+	PreDump() error
+	PostDump() error
+	PreRestore() error
+	PostRestore(pid int32) error
+	NetworkLock() error
+	NetworkUnlock() error
+	SetupNamespaces(pid int32) error
+	PostSetupNamespaces() error
+	PostResume() error
+}
+
+// NoNotify struct
+type NoNotify struct {
+}
+
+// PreDump NoNotify
+func (c NoNotify) PreDump() error {
+	return nil
+}
+
+// PostDump NoNotify
+func (c NoNotify) PostDump() error {
+	return nil
+}
+
+// PreRestore NoNotify
+func (c NoNotify) PreRestore() error {
+	return nil
+}
+
+// PostRestore NoNotify
+func (c NoNotify) PostRestore(pid int32) error {
+	return nil
+}
+
+// NetworkLock NoNotify
+func (c NoNotify) NetworkLock() error {
+	return nil
+}
+
+// NetworkUnlock NoNotify
+func (c NoNotify) NetworkUnlock() error {
+	return nil
+}
+
+// SetupNamespaces NoNotify
+func (c NoNotify) SetupNamespaces(pid int32) error {
+	return nil
+}
+
+// PostSetupNamespaces NoNotify
+func (c NoNotify) PostSetupNamespaces() error {
+	return nil
+}
+
+// PostResume NoNotify
+func (c NoNotify) PostResume() error {
+	return nil
+}
diff --git a/vendor/github.com/checkpoint-restore/go-criu/rpc/rpc.pb.go b/vendor/github.com/checkpoint-restore/go-criu/rpc/rpc.pb.go
new file mode 100644
index 000000000..e9d1f8047
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/rpc/rpc.pb.go
@@ -0,0 +1,1203 @@
+// Code generated by protoc-gen-go.
+// source: rpc.proto
+// DO NOT EDIT!
+
+/*
+Package rpc is a generated protocol buffer package.
+
+It is generated from these files:
+	rpc.proto
+
+It has these top-level messages:
+	CriuPageServerInfo
+	CriuVethPair
+	ExtMountMap
+	JoinNamespace
+	InheritFd
+	CgroupRoot
+	UnixSk
+	CriuOpts
+	CriuDumpResp
+	CriuRestoreResp
+	CriuNotify
+	CriuFeatures
+	CriuReq
+	CriuResp
+	CriuVersion
+*/
+package rpc
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type CriuCgMode int32
+
+const (
+	CriuCgMode_IGNORE  CriuCgMode = 0
+	CriuCgMode_CG_NONE CriuCgMode = 1
+	CriuCgMode_PROPS   CriuCgMode = 2
+	CriuCgMode_SOFT    CriuCgMode = 3
+	CriuCgMode_FULL    CriuCgMode = 4
+	CriuCgMode_STRICT  CriuCgMode = 5
+	CriuCgMode_DEFAULT CriuCgMode = 6
+)
+
+var CriuCgMode_name = map[int32]string{
+	0: "IGNORE",
+	1: "CG_NONE",
+	2: "PROPS",
+	3: "SOFT",
+	4: "FULL",
+	5: "STRICT",
+	6: "DEFAULT",
+}
+var CriuCgMode_value = map[string]int32{
+	"IGNORE":  0,
+	"CG_NONE": 1,
+	"PROPS":   2,
+	"SOFT":    3,
+	"FULL":    4,
+	"STRICT":  5,
+	"DEFAULT": 6,
+}
+
+func (x CriuCgMode) Enum() *CriuCgMode {
+	p := new(CriuCgMode)
+	*p = x
+	return p
+}
+func (x CriuCgMode) String() string {
+	return proto.EnumName(CriuCgMode_name, int32(x))
+}
+func (x *CriuCgMode) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(CriuCgMode_value, data, "CriuCgMode")
+	if err != nil {
+		return err
+	}
+	*x = CriuCgMode(value)
+	return nil
+}
+func (CriuCgMode) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+type CriuReqType int32
+
+const (
+	CriuReqType_EMPTY            CriuReqType = 0
+	CriuReqType_DUMP             CriuReqType = 1
+	CriuReqType_RESTORE          CriuReqType = 2
+	CriuReqType_CHECK            CriuReqType = 3
+	CriuReqType_PRE_DUMP         CriuReqType = 4
+	CriuReqType_PAGE_SERVER      CriuReqType = 5
+	CriuReqType_NOTIFY           CriuReqType = 6
+	CriuReqType_CPUINFO_DUMP     CriuReqType = 7
+	CriuReqType_CPUINFO_CHECK    CriuReqType = 8
+	CriuReqType_FEATURE_CHECK    CriuReqType = 9
+	CriuReqType_VERSION          CriuReqType = 10
+	CriuReqType_WAIT_PID         CriuReqType = 11
+	CriuReqType_PAGE_SERVER_CHLD CriuReqType = 12
+)
+
+var CriuReqType_name = map[int32]string{
+	0:  "EMPTY",
+	1:  "DUMP",
+	2:  "RESTORE",
+	3:  "CHECK",
+	4:  "PRE_DUMP",
+	5:  "PAGE_SERVER",
+	6:  "NOTIFY",
+	7:  "CPUINFO_DUMP",
+	8:  "CPUINFO_CHECK",
+	9:  "FEATURE_CHECK",
+	10: "VERSION",
+	11: "WAIT_PID",
+	12: "PAGE_SERVER_CHLD",
+}
+var CriuReqType_value = map[string]int32{
+	"EMPTY":            0,
+	"DUMP":             1,
+	"RESTORE":          2,
+	"CHECK":            3,
+	"PRE_DUMP":         4,
+	"PAGE_SERVER":      5,
+	"NOTIFY":           6,
+	"CPUINFO_DUMP":     7,
+	"CPUINFO_CHECK":    8,
+	"FEATURE_CHECK":    9,
+	"VERSION":          10,
+	"WAIT_PID":         11,
+	"PAGE_SERVER_CHLD": 12,
+}
+
+func (x CriuReqType) Enum() *CriuReqType {
+	p := new(CriuReqType)
+	*p = x
+	return p
+}
+func (x CriuReqType) String() string {
+	return proto.EnumName(CriuReqType_name, int32(x))
+}
+func (x *CriuReqType) UnmarshalJSON(data []byte) error {
+	value, err := proto.UnmarshalJSONEnum(CriuReqType_value, data, "CriuReqType")
+	if err != nil {
+		return err
+	}
+	*x = CriuReqType(value)
+	return nil
+}
+func (CriuReqType) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+type CriuPageServerInfo struct {
+	Address          *string `protobuf:"bytes,1,opt,name=address" json:"address,omitempty"`
+	Port             *int32  `protobuf:"varint,2,opt,name=port" json:"port,omitempty"`
+	Pid              *int32  `protobuf:"varint,3,opt,name=pid" json:"pid,omitempty"`
+	Fd               *int32  `protobuf:"varint,4,opt,name=fd" json:"fd,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *CriuPageServerInfo) Reset()                    { *m = CriuPageServerInfo{} }
+func (m *CriuPageServerInfo) String() string            { return proto.CompactTextString(m) }
+func (*CriuPageServerInfo) ProtoMessage()               {}
+func (*CriuPageServerInfo) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+
+func (m *CriuPageServerInfo) GetAddress() string {
+	if m != nil && m.Address != nil {
+		return *m.Address
+	}
+	return ""
+}
+
+func (m *CriuPageServerInfo) GetPort() int32 {
+	if m != nil && m.Port != nil {
+		return *m.Port
+	}
+	return 0
+}
+
+func (m *CriuPageServerInfo) GetPid() int32 {
+	if m != nil && m.Pid != nil {
+		return *m.Pid
+	}
+	return 0
+}
+
+func (m *CriuPageServerInfo) GetFd() int32 {
+	if m != nil && m.Fd != nil {
+		return *m.Fd
+	}
+	return 0
+}
+
+type CriuVethPair struct {
+	IfIn             *string `protobuf:"bytes,1,req,name=if_in,json=ifIn" json:"if_in,omitempty"`
+	IfOut            *string `protobuf:"bytes,2,req,name=if_out,json=ifOut" json:"if_out,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *CriuVethPair) Reset()                    { *m = CriuVethPair{} }
+func (m *CriuVethPair) String() string            { return proto.CompactTextString(m) }
+func (*CriuVethPair) ProtoMessage()               {}
+func (*CriuVethPair) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+
+func (m *CriuVethPair) GetIfIn() string {
+	if m != nil && m.IfIn != nil {
+		return *m.IfIn
+	}
+	return ""
+}
+
+func (m *CriuVethPair) GetIfOut() string {
+	if m != nil && m.IfOut != nil {
+		return *m.IfOut
+	}
+	return ""
+}
+
+type ExtMountMap struct {
+	Key              *string `protobuf:"bytes,1,req,name=key" json:"key,omitempty"`
+	Val              *string `protobuf:"bytes,2,req,name=val" json:"val,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *ExtMountMap) Reset()                    { *m = ExtMountMap{} }
+func (m *ExtMountMap) String() string            { return proto.CompactTextString(m) }
+func (*ExtMountMap) ProtoMessage()               {}
+func (*ExtMountMap) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+
+func (m *ExtMountMap) GetKey() string {
+	if m != nil && m.Key != nil {
+		return *m.Key
+	}
+	return ""
+}
+
+func (m *ExtMountMap) GetVal() string {
+	if m != nil && m.Val != nil {
+		return *m.Val
+	}
+	return ""
+}
+
+type JoinNamespace struct {
+	Ns               *string `protobuf:"bytes,1,req,name=ns" json:"ns,omitempty"`
+	NsFile           *string `protobuf:"bytes,2,req,name=ns_file,json=nsFile" json:"ns_file,omitempty"`
+	ExtraOpt         *string `protobuf:"bytes,3,opt,name=extra_opt,json=extraOpt" json:"extra_opt,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *JoinNamespace) Reset()                    { *m = JoinNamespace{} }
+func (m *JoinNamespace) String() string            { return proto.CompactTextString(m) }
+func (*JoinNamespace) ProtoMessage()               {}
+func (*JoinNamespace) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
+
+func (m *JoinNamespace) GetNs() string {
+	if m != nil && m.Ns != nil {
+		return *m.Ns
+	}
+	return ""
+}
+
+func (m *JoinNamespace) GetNsFile() string {
+	if m != nil && m.NsFile != nil {
+		return *m.NsFile
+	}
+	return ""
+}
+
+func (m *JoinNamespace) GetExtraOpt() string {
+	if m != nil && m.ExtraOpt != nil {
+		return *m.ExtraOpt
+	}
+	return ""
+}
+
+type InheritFd struct {
+	Key              *string `protobuf:"bytes,1,req,name=key" json:"key,omitempty"`
+	Fd               *int32  `protobuf:"varint,2,req,name=fd" json:"fd,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *InheritFd) Reset()                    { *m = InheritFd{} }
+func (m *InheritFd) String() string            { return proto.CompactTextString(m) }
+func (*InheritFd) ProtoMessage()               {}
+func (*InheritFd) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} }
+
+func (m *InheritFd) GetKey() string {
+	if m != nil && m.Key != nil {
+		return *m.Key
+	}
+	return ""
+}
+
+func (m *InheritFd) GetFd() int32 {
+	if m != nil && m.Fd != nil {
+		return *m.Fd
+	}
+	return 0
+}
+
+type CgroupRoot struct {
+	Ctrl             *string `protobuf:"bytes,1,opt,name=ctrl" json:"ctrl,omitempty"`
+	Path             *string `protobuf:"bytes,2,req,name=path" json:"path,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *CgroupRoot) Reset()                    { *m = CgroupRoot{} }
+func (m *CgroupRoot) String() string            { return proto.CompactTextString(m) }
+func (*CgroupRoot) ProtoMessage()               {}
+func (*CgroupRoot) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} }
+
+func (m *CgroupRoot) GetCtrl() string {
+	if m != nil && m.Ctrl != nil {
+		return *m.Ctrl
+	}
+	return ""
+}
+
+func (m *CgroupRoot) GetPath() string {
+	if m != nil && m.Path != nil {
+		return *m.Path
+	}
+	return ""
+}
+
+type UnixSk struct {
+	Inode            *uint32 `protobuf:"varint,1,req,name=inode" json:"inode,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *UnixSk) Reset()                    { *m = UnixSk{} }
+func (m *UnixSk) String() string            { return proto.CompactTextString(m) }
+func (*UnixSk) ProtoMessage()               {}
+func (*UnixSk) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
+
+func (m *UnixSk) GetInode() uint32 {
+	if m != nil && m.Inode != nil {
+		return *m.Inode
+	}
+	return 0
+}
+
+type CriuOpts struct {
+	ImagesDirFd          *int32              `protobuf:"varint,1,req,name=images_dir_fd,json=imagesDirFd" json:"images_dir_fd,omitempty"`
+	Pid                  *int32              `protobuf:"varint,2,opt,name=pid" json:"pid,omitempty"`
+	LeaveRunning         *bool               `protobuf:"varint,3,opt,name=leave_running,json=leaveRunning" json:"leave_running,omitempty"`
+	ExtUnixSk            *bool               `protobuf:"varint,4,opt,name=ext_unix_sk,json=extUnixSk" json:"ext_unix_sk,omitempty"`
+	TcpEstablished       *bool               `protobuf:"varint,5,opt,name=tcp_established,json=tcpEstablished" json:"tcp_established,omitempty"`
+	EvasiveDevices       *bool               `protobuf:"varint,6,opt,name=evasive_devices,json=evasiveDevices" json:"evasive_devices,omitempty"`
+	ShellJob             *bool               `protobuf:"varint,7,opt,name=shell_job,json=shellJob" json:"shell_job,omitempty"`
+	FileLocks            *bool               `protobuf:"varint,8,opt,name=file_locks,json=fileLocks" json:"file_locks,omitempty"`
+	LogLevel             *int32              `protobuf:"varint,9,opt,name=log_level,json=logLevel,def=2" json:"log_level,omitempty"`
+	LogFile              *string             `protobuf:"bytes,10,opt,name=log_file,json=logFile" json:"log_file,omitempty"`
+	Ps                   *CriuPageServerInfo `protobuf:"bytes,11,opt,name=ps" json:"ps,omitempty"`
+	NotifyScripts        *bool               `protobuf:"varint,12,opt,name=notify_scripts,json=notifyScripts" json:"notify_scripts,omitempty"`
+	Root                 *string             `protobuf:"bytes,13,opt,name=root" json:"root,omitempty"`
+	ParentImg            *string             `protobuf:"bytes,14,opt,name=parent_img,json=parentImg" json:"parent_img,omitempty"`
+	TrackMem             *bool               `protobuf:"varint,15,opt,name=track_mem,json=trackMem" json:"track_mem,omitempty"`
+	AutoDedup            *bool               `protobuf:"varint,16,opt,name=auto_dedup,json=autoDedup" json:"auto_dedup,omitempty"`
+	WorkDirFd            *int32              `protobuf:"varint,17,opt,name=work_dir_fd,json=workDirFd" json:"work_dir_fd,omitempty"`
+	LinkRemap            *bool               `protobuf:"varint,18,opt,name=link_remap,json=linkRemap" json:"link_remap,omitempty"`
+	Veths                []*CriuVethPair     `protobuf:"bytes,19,rep,name=veths" json:"veths,omitempty"`
+	CpuCap               *uint32             `protobuf:"varint,20,opt,name=cpu_cap,json=cpuCap,def=4294967295" json:"cpu_cap,omitempty"`
+	ForceIrmap           *bool               `protobuf:"varint,21,opt,name=force_irmap,json=forceIrmap" json:"force_irmap,omitempty"`
+	ExecCmd              []string            `protobuf:"bytes,22,rep,name=exec_cmd,json=execCmd" json:"exec_cmd,omitempty"`
+	ExtMnt               []*ExtMountMap      `protobuf:"bytes,23,rep,name=ext_mnt,json=extMnt" json:"ext_mnt,omitempty"`
+	ManageCgroups        *bool               `protobuf:"varint,24,opt,name=manage_cgroups,json=manageCgroups" json:"manage_cgroups,omitempty"`
+	CgRoot               []*CgroupRoot       `protobuf:"bytes,25,rep,name=cg_root,json=cgRoot" json:"cg_root,omitempty"`
+	RstSibling           *bool               `protobuf:"varint,26,opt,name=rst_sibling,json=rstSibling" json:"rst_sibling,omitempty"`
+	InheritFd            []*InheritFd        `protobuf:"bytes,27,rep,name=inherit_fd,json=inheritFd" json:"inherit_fd,omitempty"`
+	AutoExtMnt           *bool               `protobuf:"varint,28,opt,name=auto_ext_mnt,json=autoExtMnt" json:"auto_ext_mnt,omitempty"`
+	ExtSharing           *bool               `protobuf:"varint,29,opt,name=ext_sharing,json=extSharing" json:"ext_sharing,omitempty"`
+	ExtMasters           *bool               `protobuf:"varint,30,opt,name=ext_masters,json=extMasters" json:"ext_masters,omitempty"`
+	SkipMnt              []string            `protobuf:"bytes,31,rep,name=skip_mnt,json=skipMnt" json:"skip_mnt,omitempty"`
+	EnableFs             []string            `protobuf:"bytes,32,rep,name=enable_fs,json=enableFs" json:"enable_fs,omitempty"`
+	UnixSkIno            []*UnixSk           `protobuf:"bytes,33,rep,name=unix_sk_ino,json=unixSkIno" json:"unix_sk_ino,omitempty"`
+	ManageCgroupsMode    *CriuCgMode         `protobuf:"varint,34,opt,name=manage_cgroups_mode,json=manageCgroupsMode,enum=CriuCgMode" json:"manage_cgroups_mode,omitempty"`
+	GhostLimit           *uint32             `protobuf:"varint,35,opt,name=ghost_limit,json=ghostLimit,def=1048576" json:"ghost_limit,omitempty"`
+	IrmapScanPaths       []string            `protobuf:"bytes,36,rep,name=irmap_scan_paths,json=irmapScanPaths" json:"irmap_scan_paths,omitempty"`
+	External             []string            `protobuf:"bytes,37,rep,name=external" json:"external,omitempty"`
+	EmptyNs              *uint32             `protobuf:"varint,38,opt,name=empty_ns,json=emptyNs" json:"empty_ns,omitempty"`
+	JoinNs               []*JoinNamespace    `protobuf:"bytes,39,rep,name=join_ns,json=joinNs" json:"join_ns,omitempty"`
+	CgroupProps          *string             `protobuf:"bytes,41,opt,name=cgroup_props,json=cgroupProps" json:"cgroup_props,omitempty"`
+	CgroupPropsFile      *string             `protobuf:"bytes,42,opt,name=cgroup_props_file,json=cgroupPropsFile" json:"cgroup_props_file,omitempty"`
+	CgroupDumpController []string            `protobuf:"bytes,43,rep,name=cgroup_dump_controller,json=cgroupDumpController" json:"cgroup_dump_controller,omitempty"`
+	FreezeCgroup         *string             `protobuf:"bytes,44,opt,name=freeze_cgroup,json=freezeCgroup" json:"freeze_cgroup,omitempty"`
+	Timeout              *uint32             `protobuf:"varint,45,opt,name=timeout" json:"timeout,omitempty"`
+	TcpSkipInFlight      *bool               `protobuf:"varint,46,opt,name=tcp_skip_in_flight,json=tcpSkipInFlight" json:"tcp_skip_in_flight,omitempty"`
+	WeakSysctls          *bool               `protobuf:"varint,47,opt,name=weak_sysctls,json=weakSysctls" json:"weak_sysctls,omitempty"`
+	LazyPages            *bool               `protobuf:"varint,48,opt,name=lazy_pages,json=lazyPages" json:"lazy_pages,omitempty"`
+	StatusFd             *int32              `protobuf:"varint,49,opt,name=status_fd,json=statusFd" json:"status_fd,omitempty"`
+	OrphanPtsMaster      *bool               `protobuf:"varint,50,opt,name=orphan_pts_master,json=orphanPtsMaster" json:"orphan_pts_master,omitempty"`
+	XXX_unrecognized     []byte              `json:"-"`
+}
+
+func (m *CriuOpts) Reset()                    { *m = CriuOpts{} }
+func (m *CriuOpts) String() string            { return proto.CompactTextString(m) }
+func (*CriuOpts) ProtoMessage()               {}
+func (*CriuOpts) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
+
+const Default_CriuOpts_LogLevel int32 = 2
+const Default_CriuOpts_CpuCap uint32 = 4294967295
+const Default_CriuOpts_GhostLimit uint32 = 1048576
+
+func (m *CriuOpts) GetImagesDirFd() int32 {
+	if m != nil && m.ImagesDirFd != nil {
+		return *m.ImagesDirFd
+	}
+	return 0
+}
+
+func (m *CriuOpts) GetPid() int32 {
+	if m != nil && m.Pid != nil {
+		return *m.Pid
+	}
+	return 0
+}
+
+func (m *CriuOpts) GetLeaveRunning() bool {
+	if m != nil && m.LeaveRunning != nil {
+		return *m.LeaveRunning
+	}
+	return false
+}
+
+func (m *CriuOpts) GetExtUnixSk() bool {
+	if m != nil && m.ExtUnixSk != nil {
+		return *m.ExtUnixSk
+	}
+	return false
+}
+
+func (m *CriuOpts) GetTcpEstablished() bool {
+	if m != nil && m.TcpEstablished != nil {
+		return *m.TcpEstablished
+	}
+	return false
+}
+
+func (m *CriuOpts) GetEvasiveDevices() bool {
+	if m != nil && m.EvasiveDevices != nil {
+		return *m.EvasiveDevices
+	}
+	return false
+}
+
+func (m *CriuOpts) GetShellJob() bool {
+	if m != nil && m.ShellJob != nil {
+		return *m.ShellJob
+	}
+	return false
+}
+
+func (m *CriuOpts) GetFileLocks() bool {
+	if m != nil && m.FileLocks != nil {
+		return *m.FileLocks
+	}
+	return false
+}
+
+func (m *CriuOpts) GetLogLevel() int32 {
+	if m != nil && m.LogLevel != nil {
+		return *m.LogLevel
+	}
+	return Default_CriuOpts_LogLevel
+}
+
+func (m *CriuOpts) GetLogFile() string {
+	if m != nil && m.LogFile != nil {
+		return *m.LogFile
+	}
+	return ""
+}
+
+func (m *CriuOpts) GetPs() *CriuPageServerInfo {
+	if m != nil {
+		return m.Ps
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetNotifyScripts() bool {
+	if m != nil && m.NotifyScripts != nil {
+		return *m.NotifyScripts
+	}
+	return false
+}
+
+func (m *CriuOpts) GetRoot() string {
+	if m != nil && m.Root != nil {
+		return *m.Root
+	}
+	return ""
+}
+
+func (m *CriuOpts) GetParentImg() string {
+	if m != nil && m.ParentImg != nil {
+		return *m.ParentImg
+	}
+	return ""
+}
+
+func (m *CriuOpts) GetTrackMem() bool {
+	if m != nil && m.TrackMem != nil {
+		return *m.TrackMem
+	}
+	return false
+}
+
+func (m *CriuOpts) GetAutoDedup() bool {
+	if m != nil && m.AutoDedup != nil {
+		return *m.AutoDedup
+	}
+	return false
+}
+
+func (m *CriuOpts) GetWorkDirFd() int32 {
+	if m != nil && m.WorkDirFd != nil {
+		return *m.WorkDirFd
+	}
+	return 0
+}
+
+func (m *CriuOpts) GetLinkRemap() bool {
+	if m != nil && m.LinkRemap != nil {
+		return *m.LinkRemap
+	}
+	return false
+}
+
+func (m *CriuOpts) GetVeths() []*CriuVethPair {
+	if m != nil {
+		return m.Veths
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetCpuCap() uint32 {
+	if m != nil && m.CpuCap != nil {
+		return *m.CpuCap
+	}
+	return Default_CriuOpts_CpuCap
+}
+
+func (m *CriuOpts) GetForceIrmap() bool {
+	if m != nil && m.ForceIrmap != nil {
+		return *m.ForceIrmap
+	}
+	return false
+}
+
+func (m *CriuOpts) GetExecCmd() []string {
+	if m != nil {
+		return m.ExecCmd
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetExtMnt() []*ExtMountMap {
+	if m != nil {
+		return m.ExtMnt
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetManageCgroups() bool {
+	if m != nil && m.ManageCgroups != nil {
+		return *m.ManageCgroups
+	}
+	return false
+}
+
+func (m *CriuOpts) GetCgRoot() []*CgroupRoot {
+	if m != nil {
+		return m.CgRoot
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetRstSibling() bool {
+	if m != nil && m.RstSibling != nil {
+		return *m.RstSibling
+	}
+	return false
+}
+
+func (m *CriuOpts) GetInheritFd() []*InheritFd {
+	if m != nil {
+		return m.InheritFd
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetAutoExtMnt() bool {
+	if m != nil && m.AutoExtMnt != nil {
+		return *m.AutoExtMnt
+	}
+	return false
+}
+
+func (m *CriuOpts) GetExtSharing() bool {
+	if m != nil && m.ExtSharing != nil {
+		return *m.ExtSharing
+	}
+	return false
+}
+
+func (m *CriuOpts) GetExtMasters() bool {
+	if m != nil && m.ExtMasters != nil {
+		return *m.ExtMasters
+	}
+	return false
+}
+
+func (m *CriuOpts) GetSkipMnt() []string {
+	if m != nil {
+		return m.SkipMnt
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetEnableFs() []string {
+	if m != nil {
+		return m.EnableFs
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetUnixSkIno() []*UnixSk {
+	if m != nil {
+		return m.UnixSkIno
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetManageCgroupsMode() CriuCgMode {
+	if m != nil && m.ManageCgroupsMode != nil {
+		return *m.ManageCgroupsMode
+	}
+	return CriuCgMode_IGNORE
+}
+
+func (m *CriuOpts) GetGhostLimit() uint32 {
+	if m != nil && m.GhostLimit != nil {
+		return *m.GhostLimit
+	}
+	return Default_CriuOpts_GhostLimit
+}
+
+func (m *CriuOpts) GetIrmapScanPaths() []string {
+	if m != nil {
+		return m.IrmapScanPaths
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetExternal() []string {
+	if m != nil {
+		return m.External
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetEmptyNs() uint32 {
+	if m != nil && m.EmptyNs != nil {
+		return *m.EmptyNs
+	}
+	return 0
+}
+
+func (m *CriuOpts) GetJoinNs() []*JoinNamespace {
+	if m != nil {
+		return m.JoinNs
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetCgroupProps() string {
+	if m != nil && m.CgroupProps != nil {
+		return *m.CgroupProps
+	}
+	return ""
+}
+
+func (m *CriuOpts) GetCgroupPropsFile() string {
+	if m != nil && m.CgroupPropsFile != nil {
+		return *m.CgroupPropsFile
+	}
+	return ""
+}
+
+func (m *CriuOpts) GetCgroupDumpController() []string {
+	if m != nil {
+		return m.CgroupDumpController
+	}
+	return nil
+}
+
+func (m *CriuOpts) GetFreezeCgroup() string {
+	if m != nil && m.FreezeCgroup != nil {
+		return *m.FreezeCgroup
+	}
+	return ""
+}
+
+func (m *CriuOpts) GetTimeout() uint32 {
+	if m != nil && m.Timeout != nil {
+		return *m.Timeout
+	}
+	return 0
+}
+
+func (m *CriuOpts) GetTcpSkipInFlight() bool {
+	if m != nil && m.TcpSkipInFlight != nil {
+		return *m.TcpSkipInFlight
+	}
+	return false
+}
+
+func (m *CriuOpts) GetWeakSysctls() bool {
+	if m != nil && m.WeakSysctls != nil {
+		return *m.WeakSysctls
+	}
+	return false
+}
+
+func (m *CriuOpts) GetLazyPages() bool {
+	if m != nil && m.LazyPages != nil {
+		return *m.LazyPages
+	}
+	return false
+}
+
+func (m *CriuOpts) GetStatusFd() int32 {
+	if m != nil && m.StatusFd != nil {
+		return *m.StatusFd
+	}
+	return 0
+}
+
+func (m *CriuOpts) GetOrphanPtsMaster() bool {
+	if m != nil && m.OrphanPtsMaster != nil {
+		return *m.OrphanPtsMaster
+	}
+	return false
+}
+
+type CriuDumpResp struct {
+	Restored         *bool  `protobuf:"varint,1,opt,name=restored" json:"restored,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *CriuDumpResp) Reset()                    { *m = CriuDumpResp{} }
+func (m *CriuDumpResp) String() string            { return proto.CompactTextString(m) }
+func (*CriuDumpResp) ProtoMessage()               {}
+func (*CriuDumpResp) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{8} }
+
+func (m *CriuDumpResp) GetRestored() bool {
+	if m != nil && m.Restored != nil {
+		return *m.Restored
+	}
+	return false
+}
+
+type CriuRestoreResp struct {
+	Pid              *int32 `protobuf:"varint,1,req,name=pid" json:"pid,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *CriuRestoreResp) Reset()                    { *m = CriuRestoreResp{} }
+func (m *CriuRestoreResp) String() string            { return proto.CompactTextString(m) }
+func (*CriuRestoreResp) ProtoMessage()               {}
+func (*CriuRestoreResp) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{9} }
+
+func (m *CriuRestoreResp) GetPid() int32 {
+	if m != nil && m.Pid != nil {
+		return *m.Pid
+	}
+	return 0
+}
+
+type CriuNotify struct {
+	Script           *string `protobuf:"bytes,1,opt,name=script" json:"script,omitempty"`
+	Pid              *int32  `protobuf:"varint,2,opt,name=pid" json:"pid,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *CriuNotify) Reset()                    { *m = CriuNotify{} }
+func (m *CriuNotify) String() string            { return proto.CompactTextString(m) }
+func (*CriuNotify) ProtoMessage()               {}
+func (*CriuNotify) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{10} }
+
+func (m *CriuNotify) GetScript() string {
+	if m != nil && m.Script != nil {
+		return *m.Script
+	}
+	return ""
+}
+
+func (m *CriuNotify) GetPid() int32 {
+	if m != nil && m.Pid != nil {
+		return *m.Pid
+	}
+	return 0
+}
+
+//
+// List of features which can queried via
+// CRIU_REQ_TYPE__FEATURE_CHECK
+type CriuFeatures struct {
+	MemTrack         *bool  `protobuf:"varint,1,opt,name=mem_track,json=memTrack" json:"mem_track,omitempty"`
+	LazyPages        *bool  `protobuf:"varint,2,opt,name=lazy_pages,json=lazyPages" json:"lazy_pages,omitempty"`
+	XXX_unrecognized []byte `json:"-"`
+}
+
+func (m *CriuFeatures) Reset()                    { *m = CriuFeatures{} }
+func (m *CriuFeatures) String() string            { return proto.CompactTextString(m) }
+func (*CriuFeatures) ProtoMessage()               {}
+func (*CriuFeatures) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{11} }
+
+func (m *CriuFeatures) GetMemTrack() bool {
+	if m != nil && m.MemTrack != nil {
+		return *m.MemTrack
+	}
+	return false
+}
+
+func (m *CriuFeatures) GetLazyPages() bool {
+	if m != nil && m.LazyPages != nil {
+		return *m.LazyPages
+	}
+	return false
+}
+
+type CriuReq struct {
+	Type          *CriuReqType `protobuf:"varint,1,req,name=type,enum=CriuReqType" json:"type,omitempty"`
+	Opts          *CriuOpts    `protobuf:"bytes,2,opt,name=opts" json:"opts,omitempty"`
+	NotifySuccess *bool        `protobuf:"varint,3,opt,name=notify_success,json=notifySuccess" json:"notify_success,omitempty"`
+	//
+	// When set service won't close the connection but
+	// will wait for more req-s to appear. Works not
+	// for all request types.
+	KeepOpen *bool `protobuf:"varint,4,opt,name=keep_open,json=keepOpen" json:"keep_open,omitempty"`
+	//
+	// 'features' can be used to query which features
+	// are supported by the installed criu/kernel
+	// via RPC.
+	Features *CriuFeatures `protobuf:"bytes,5,opt,name=features" json:"features,omitempty"`
+	// 'pid' is used for WAIT_PID
+	Pid              *uint32 `protobuf:"varint,6,opt,name=pid" json:"pid,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *CriuReq) Reset()                    { *m = CriuReq{} }
+func (m *CriuReq) String() string            { return proto.CompactTextString(m) }
+func (*CriuReq) ProtoMessage()               {}
+func (*CriuReq) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{12} }
+
+func (m *CriuReq) GetType() CriuReqType {
+	if m != nil && m.Type != nil {
+		return *m.Type
+	}
+	return CriuReqType_EMPTY
+}
+
+func (m *CriuReq) GetOpts() *CriuOpts {
+	if m != nil {
+		return m.Opts
+	}
+	return nil
+}
+
+func (m *CriuReq) GetNotifySuccess() bool {
+	if m != nil && m.NotifySuccess != nil {
+		return *m.NotifySuccess
+	}
+	return false
+}
+
+func (m *CriuReq) GetKeepOpen() bool {
+	if m != nil && m.KeepOpen != nil {
+		return *m.KeepOpen
+	}
+	return false
+}
+
+func (m *CriuReq) GetFeatures() *CriuFeatures {
+	if m != nil {
+		return m.Features
+	}
+	return nil
+}
+
+func (m *CriuReq) GetPid() uint32 {
+	if m != nil && m.Pid != nil {
+		return *m.Pid
+	}
+	return 0
+}
+
+type CriuResp struct {
+	Type             *CriuReqType        `protobuf:"varint,1,req,name=type,enum=CriuReqType" json:"type,omitempty"`
+	Success          *bool               `protobuf:"varint,2,req,name=success" json:"success,omitempty"`
+	Dump             *CriuDumpResp       `protobuf:"bytes,3,opt,name=dump" json:"dump,omitempty"`
+	Restore          *CriuRestoreResp    `protobuf:"bytes,4,opt,name=restore" json:"restore,omitempty"`
+	Notify           *CriuNotify         `protobuf:"bytes,5,opt,name=notify" json:"notify,omitempty"`
+	Ps               *CriuPageServerInfo `protobuf:"bytes,6,opt,name=ps" json:"ps,omitempty"`
+	CrErrno          *int32              `protobuf:"varint,7,opt,name=cr_errno,json=crErrno" json:"cr_errno,omitempty"`
+	Features         *CriuFeatures       `protobuf:"bytes,8,opt,name=features" json:"features,omitempty"`
+	CrErrmsg         *string             `protobuf:"bytes,9,opt,name=cr_errmsg,json=crErrmsg" json:"cr_errmsg,omitempty"`
+	Version          *CriuVersion        `protobuf:"bytes,10,opt,name=version" json:"version,omitempty"`
+	Status           *int32              `protobuf:"varint,11,opt,name=status" json:"status,omitempty"`
+	XXX_unrecognized []byte              `json:"-"`
+}
+
+func (m *CriuResp) Reset()                    { *m = CriuResp{} }
+func (m *CriuResp) String() string            { return proto.CompactTextString(m) }
+func (*CriuResp) ProtoMessage()               {}
+func (*CriuResp) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{13} }
+
+func (m *CriuResp) GetType() CriuReqType {
+	if m != nil && m.Type != nil {
+		return *m.Type
+	}
+	return CriuReqType_EMPTY
+}
+
+func (m *CriuResp) GetSuccess() bool {
+	if m != nil && m.Success != nil {
+		return *m.Success
+	}
+	return false
+}
+
+func (m *CriuResp) GetDump() *CriuDumpResp {
+	if m != nil {
+		return m.Dump
+	}
+	return nil
+}
+
+func (m *CriuResp) GetRestore() *CriuRestoreResp {
+	if m != nil {
+		return m.Restore
+	}
+	return nil
+}
+
+func (m *CriuResp) GetNotify() *CriuNotify {
+	if m != nil {
+		return m.Notify
+	}
+	return nil
+}
+
+func (m *CriuResp) GetPs() *CriuPageServerInfo {
+	if m != nil {
+		return m.Ps
+	}
+	return nil
+}
+
+func (m *CriuResp) GetCrErrno() int32 {
+	if m != nil && m.CrErrno != nil {
+		return *m.CrErrno
+	}
+	return 0
+}
+
+func (m *CriuResp) GetFeatures() *CriuFeatures {
+	if m != nil {
+		return m.Features
+	}
+	return nil
+}
+
+func (m *CriuResp) GetCrErrmsg() string {
+	if m != nil && m.CrErrmsg != nil {
+		return *m.CrErrmsg
+	}
+	return ""
+}
+
+func (m *CriuResp) GetVersion() *CriuVersion {
+	if m != nil {
+		return m.Version
+	}
+	return nil
+}
+
+func (m *CriuResp) GetStatus() int32 {
+	if m != nil && m.Status != nil {
+		return *m.Status
+	}
+	return 0
+}
+
+// Answer for criu_req_type.VERSION requests
+type CriuVersion struct {
+	Major            *int32  `protobuf:"varint,1,req,name=major" json:"major,omitempty"`
+	Minor            *int32  `protobuf:"varint,2,req,name=minor" json:"minor,omitempty"`
+	Gitid            *string `protobuf:"bytes,3,opt,name=gitid" json:"gitid,omitempty"`
+	Sublevel         *int32  `protobuf:"varint,4,opt,name=sublevel" json:"sublevel,omitempty"`
+	Extra            *int32  `protobuf:"varint,5,opt,name=extra" json:"extra,omitempty"`
+	Name             *string `protobuf:"bytes,6,opt,name=name" json:"name,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (m *CriuVersion) Reset()                    { *m = CriuVersion{} }
+func (m *CriuVersion) String() string            { return proto.CompactTextString(m) }
+func (*CriuVersion) ProtoMessage()               {}
+func (*CriuVersion) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{14} }
+
+func (m *CriuVersion) GetMajor() int32 {
+	if m != nil && m.Major != nil {
+		return *m.Major
+	}
+	return 0
+}
+
+func (m *CriuVersion) GetMinor() int32 {
+	if m != nil && m.Minor != nil {
+		return *m.Minor
+	}
+	return 0
+}
+
+func (m *CriuVersion) GetGitid() string {
+	if m != nil && m.Gitid != nil {
+		return *m.Gitid
+	}
+	return ""
+}
+
+func (m *CriuVersion) GetSublevel() int32 {
+	if m != nil && m.Sublevel != nil {
+		return *m.Sublevel
+	}
+	return 0
+}
+
+func (m *CriuVersion) GetExtra() int32 {
+	if m != nil && m.Extra != nil {
+		return *m.Extra
+	}
+	return 0
+}
+
+func (m *CriuVersion) GetName() string {
+	if m != nil && m.Name != nil {
+		return *m.Name
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*CriuPageServerInfo)(nil), "criu_page_server_info")
+	proto.RegisterType((*CriuVethPair)(nil), "criu_veth_pair")
+	proto.RegisterType((*ExtMountMap)(nil), "ext_mount_map")
+	proto.RegisterType((*JoinNamespace)(nil), "join_namespace")
+	proto.RegisterType((*InheritFd)(nil), "inherit_fd")
+	proto.RegisterType((*CgroupRoot)(nil), "cgroup_root")
+	proto.RegisterType((*UnixSk)(nil), "unix_sk")
+	proto.RegisterType((*CriuOpts)(nil), "criu_opts")
+	proto.RegisterType((*CriuDumpResp)(nil), "criu_dump_resp")
+	proto.RegisterType((*CriuRestoreResp)(nil), "criu_restore_resp")
+	proto.RegisterType((*CriuNotify)(nil), "criu_notify")
+	proto.RegisterType((*CriuFeatures)(nil), "criu_features")
+	proto.RegisterType((*CriuReq)(nil), "criu_req")
+	proto.RegisterType((*CriuResp)(nil), "criu_resp")
+	proto.RegisterType((*CriuVersion)(nil), "criu_version")
+	proto.RegisterEnum("CriuCgMode", CriuCgMode_name, CriuCgMode_value)
+	proto.RegisterEnum("CriuReqType", CriuReqType_name, CriuReqType_value)
+}
+
+func init() { proto.RegisterFile("rpc.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 1816 bytes of a gzipped FileDescriptorProto
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+	0x57, 0xa3, 0x62, 0x33, 0x0c, 0x0b, 0xfa, 0x98, 0x34, 0x97, 0xb9, 0x8e, 0xa4, 0x50, 0x1a, 0xfe,
+	0xba, 0x8b, 0x7f, 0x11, 0x84, 0x26, 0x80, 0x40, 0x10, 0xe4, 0x85, 0x8c, 0x44, 0x94, 0xc6, 0xec,
+	0x5e, 0x77, 0x07, 0x82, 0x00, 0xf4, 0x30, 0x85, 0x24, 0xa9, 0x61, 0xad, 0x67, 0x96, 0x7d, 0x82,
+	0x9a, 0x74, 0xfa, 0x37, 0x6a, 0x9f, 0x57, 0xe5, 0x85, 0x3d, 0xca, 0x2c, 0x44, 0x21, 0x0d, 0x33,
+	0x88, 0x8f, 0x2b, 0x2f, 0xc3, 0x98, 0x8b, 0x82, 0x43, 0x87, 0x0e, 0xa4, 0x4f, 0x49, 0x2d, 0x5a,
+	0x61, 0xe9, 0xb1, 0xfb, 0xf8, 0x5e, 0xab, 0x7f, 0xad, 0x1c, 0x79, 0x35, 0x5a, 0x71, 0x08, 0xcc,
+	0x63, 0xd2, 0xd4, 0xc6, 0x0a, 0xa3, 0x4e, 0x13, 0xa8, 0x83, 0x4f, 0x9d, 0xca, 0xda, 0xd8, 0xb9,
+	0x43, 0xe8, 0xfe, 0xf5, 0xb2, 0x67, 0x0f, 0xf0, 0xa9, 0x66, 0xff, 0x03, 0xc4, 0x1b, 0xfe, 0x3c,
+	0x8e, 0x69, 0x97, 0xb4, 0x30, 0x52, 0x5b, 0x43, 0xfe, 0xe0, 0x5e, 0x03, 0x6c, 0xe4, 0x94, 0x7f,
+	0xec, 0x6a, 0xca, 0x9c, 0x85, 0x1a, 0xbe, 0x7b, 0xe8, 0x18, 0xe4, 0x85, 0x9d, 0x3b, 0x64, 0xcb,
+	0x90, 0x86, 0xc6, 0x4a, 0x6d, 0xd8, 0xa3, 0x2b, 0x86, 0x23, 0x87, 0x80, 0x0b, 0xcd, 0x5a, 0x15,
+	0xf8, 0xfe, 0x63, 0xe7, 0x42, 0xa0, 0xe1, 0x71, 0x68, 0x5f, 0x59, 0x78, 0x9a, 0x48, 0xb1, 0x34,
+	0xac, 0x8b, 0x77, 0x75, 0x07, 0x8c, 0x0d, 0xdd, 0x23, 0x4d, 0x5f, 0xc9, 0x42, 0x65, 0x39, 0xfb,
+	0x0c, 0x0d, 0xa9, 0xf7, 0x3d, 0xc6, 0x1b, 0x1b, 0x2c, 0xea, 0x49, 0x96, 0xd3, 0xbf, 0x93, 0x8f,
+	0x6f, 0x3a, 0x58, 0xa4, 0xd0, 0x84, 0x7a, 0xdd, 0xd2, 0x5e, 0x67, 0xd0, 0x76, 0xf9, 0x11, 0xad,
+	0x10, 0xe4, 0xb7, 0x6f, 0x38, 0xfd, 0x28, 0x8f, 0x25, 0x7c, 0xb4, 0x3a, 0xcb, 0x8d, 0x15, 0x89,
+	0x4a, 0x95, 0x65, 0x4f, 0x30, 0x5b, 0x6a, 0xdf, 0x7c, 0xfd, 0xfc, 0xaf, 0x2f, 0x5e, 0x7e, 0xcb,
+	0x09, 0xde, 0x1d, 0xc2, 0x15, 0xdd, 0x23, 0x01, 0x26, 0x8a, 0x30, 0x51, 0x98, 0x09, 0xe8, 0x7e,
+	0x86, 0x7d, 0x8e, 0x6a, 0x77, 0x10, 0x9f, 0x47, 0x61, 0x36, 0x03, 0x94, 0x7e, 0x0a, 0x79, 0x63,
+	0xa5, 0xce, 0xc2, 0x84, 0x3d, 0xf5, 0x86, 0x79, 0x1a, 0x73, 0x2a, 0x2d, 0xec, 0xa5, 0xc8, 0x0c,
+	0xfb, 0x02, 0x3e, 0xe3, 0x35, 0xa4, 0x8f, 0xc1, 0xe6, 0x9a, 0x1b, 0x05, 0x86, 0x7d, 0xe9, 0xb3,
+	0xfb, 0xe6, 0x68, 0xe0, 0x55, 0xa0, 0x8f, 0x0d, 0xfd, 0x8c, 0xb4, 0x7c, 0x76, 0x14, 0x3a, 0x2f,
+	0x0c, 0xfb, 0x23, 0x56, 0xa8, 0x6f, 0xe0, 0x33, 0x80, 0xe8, 0x3e, 0xb9, 0x7d, 0x9d, 0xc5, 0x75,
+	0x92, 0x7d, 0xe4, 0xbb, 0x75, 0x8d, 0x0f, 0x3b, 0xca, 0x73, 0x72, 0xcf, 0xf3, 0xc6, 0x9b, 0xb4,
+	0x10, 0x51, 0x9e, 0x59, 0x9d, 0x27, 0x89, 0xd4, 0xec, 0x2b, 0xd4, 0xfe, 0x8e, 0xbb, 0x3d, 0xd8,
+	0xa4, 0xc5, 0xf0, 0xea, 0x0e, 0xba, 0xf2, 0x52, 0x4b, 0xf9, 0x7e, 0xeb, 0x78, 0xf6, 0x0c, 0x5f,
+	0x6f, 0x39, 0xd0, 0xf9, 0x18, 0x26, 0xb4, 0x55, 0xa9, 0x84, 0x59, 0xf9, 0x27, 0x67, 0xad, 0x27,
+	0xe9, 0x57, 0x84, 0x42, 0x3f, 0xc6, 0xec, 0x50, 0x99, 0x58, 0x26, 0x6a, 0x75, 0x66, 0x59, 0x1f,
+	0x33, 0x08, 0x3a, 0xf5, 0x7c, 0xad, 0x8a, 0x49, 0x36, 0x46, 0x18, 0x0c, 0xfe, 0x49, 0x86, 0x6b,
+	0x61, 0x2e, 0x4d, 0x64, 0x13, 0xc3, 0xfe, 0x8c, 0x6c, 0x4d, 0xc0, 0xe6, 0x0e, 0xc2, 0xc6, 0x11,
+	0xbe, 0xbf, 0xc4, 0x5e, 0x68, 0xd8, 0xd7, 0xbe, 0x71, 0x84, 0xef, 0x2f, 0x67, 0x00, 0x60, 0xb3,
+	0xb6, 0xa1, 0xdd, 0x18, 0xa8, 0x8b, 0x6f, 0xb0, 0xeb, 0xd4, 0x1d, 0x30, 0x8e, 0xc1, 0x59, 0xb9,
+	0x2e, 0xce, 0x20, 0xac, 0xd6, 0xf8, 0x6c, 0x66, 0x03, 0xa7, 0x8a, 0xbb, 0x98, 0x59, 0xe3, 0x52,
+	0xba, 0xf7, 0xcc, 0xef, 0x08, 0xe8, 0x2a, 0x2d, 0x4d, 0x01, 0xe1, 0xd6, 0xd2, 0xd8, 0x5c, 0xcb,
+	0x18, 0xe7, 0x65, 0x9d, 0x5f, 0xd1, 0xbd, 0xa7, 0xe4, 0x36, 0x72, 0x7b, 0xc0, 0x09, 0xf8, 0x09,
+	0xe7, 0x66, 0x1f, 0x1c, 0x7b, 0x2f, 0x49, 0x13, 0xd9, 0x5c, 0x6b, 0xa6, 0xf7, 0x48, 0xd5, 0xf5,
+	0x6c, 0x3f, 0x7f, 0x3d, 0xf5, 0xeb, 0xd1, 0xd8, 0xfb, 0x81, 0xb4, 0x51, 0x70, 0x29, 0x43, 0xbb,
+	0xd1, 0xce, 0xce, 0x54, 0xa6, 0x02, 0xdb, 0xf1, 0x56, 0x9b, 0x54, 0xa6, 0x0b, 0xa0, 0x7f, 0xe1,
+	0xa3, 0xf2, 0x2f, 0x7c, 0xd4, 0xfb, 0xb9, 0x44, 0xea, 0x5e, 0xdb, 0x7f, 0xd1, 0x1e, 0xd9, 0xb5,
+	0x97, 0x85, 0x9b, 0xe6, 0x9d, 0x41, 0xa7, 0xbf, 0xbd, 0x10, 0x80, 0x72, 0xbc, 0xa3, 0x8f, 0xc8,
+	0x2e, 0x8c, 0x75, 0x7c, 0xa9, 0x39, 0x20, 0xfd, 0xab, 0x41, 0xcf, 0x11, 0xbf, 0x3e, 0x82, 0x36,
+	0x51, 0x04, 0x6b, 0xda, 0xce, 0x8d, 0x11, 0xe4, 0x40, 0xd0, 0x79, 0x2d, 0x65, 0x21, 0xf2, 0x42,
+	0x66, 0x7e, 0x70, 0xd7, 0x01, 0x98, 0x16, 0x32, 0xa3, 0xfb, 0xa4, 0xbe, 0x35, 0x0e, 0x07, 0x76,
+	0x73, 0xab, 0xcb, 0x16, 0xe5, 0x57, 0xf7, 0x5b, 0xff, 0x54, 0x31, 0xd3, 0xd0, 0x3f, 0xff, 0xde,
+	0xf1, 0xeb, 0x07, 0x3a, 0xfe, 0xff, 0xb1, 0x89, 0x91, 0xda, 0x56, 0x59, 0x58, 0x74, 0xea, 0x7c,
+	0x4b, 0xd2, 0x27, 0x64, 0x17, 0x82, 0x8e, 0x36, 0x5c, 0x8d, 0x9e, 0xab, 0x34, 0xe0, 0x78, 0x49,
+	0x9f, 0x91, 0x9a, 0x8f, 0x35, 0x5a, 0xd2, 0x1c, 0xd0, 0xfe, 0xaf, 0x12, 0x80, 0x6f, 0x59, 0xe8,
+	0xe7, 0xa4, 0xea, 0x5c, 0xe1, 0x4d, 0x6b, 0xf5, 0xaf, 0xa5, 0x01, 0xf7, 0x77, 0x7e, 0xe2, 0x57,
+	0x7f, 0x77, 0xe2, 0xdf, 0x87, 0xf0, 0x09, 0xa9, 0x75, 0x96, 0xe3, 0x3e, 0x52, 0xe1, 0xb5, 0x48,
+	0x8f, 0x80, 0xbc, 0xe1, 0xc5, 0xfa, 0xef, 0x78, 0xf1, 0x01, 0xb8, 0x0c, 0x9e, 0x49, 0xcd, 0x0a,
+	0x77, 0x93, 0x06, 0xaf, 0xe3, 0x3b, 0xa9, 0x59, 0xc1, 0xe0, 0x3b, 0x97, 0xda, 0xa8, 0x3c, 0xc3,
+	0xbd, 0xa4, 0xb9, 0x6d, 0xb1, 0x1e, 0xe4, 0xdb, 0x5b, 0xcc, 0x61, 0xac, 0x2f, 0x5c, 0x55, 0x2a,
+	0xdc, 0x53, 0xbd, 0xff, 0x94, 0x48, 0xeb, 0xba, 0x04, 0xec, 0x8d, 0x69, 0xf8, 0x2e, 0xd7, 0xbe,
+	0x1e, 0x1c, 0x81, 0xa8, 0xca, 0x72, 0xed, 0x57, 0x54, 0x47, 0x00, 0xba, 0x52, 0xd6, 0x2f, 0xf1,
+	0x0d, 0xee, 0x08, 0x28, 0x40, 0xb3, 0x39, 0x75, 0xbb, 0xd4, 0xae, 0x2f, 0x6d, 0x4f, 0x83, 0x04,
+	0xee, 0xc4, 0xe8, 0xe0, 0x0a, 0x77, 0x04, 0x2c, 0x3d, 0xd0, 0x55, 0xd1, 0xa7, 0x0d, 0x8e, 0xe7,
+	0x7d, 0xe1, 0xf5, 0xf2, 0xc3, 0x82, 0x12, 0x52, 0x9d, 0xbc, 0x39, 0x9e, 0xf2, 0x51, 0xf0, 0x11,
+	0x6d, 0x92, 0xda, 0xf0, 0x8d, 0x38, 0x9e, 0x1e, 0x8f, 0x82, 0x12, 0x6d, 0x90, 0xca, 0x8c, 0x4f,
+	0x67, 0xf3, 0xa0, 0x4c, 0xeb, 0x64, 0x77, 0x3e, 0x1d, 0x2f, 0x82, 0x1d, 0x38, 0x8d, 0x4f, 0x0e,
+	0x0f, 0x83, 0x5d, 0x90, 0x9b, 0x2f, 0xf8, 0x64, 0xb8, 0x08, 0x2a, 0x20, 0x77, 0x30, 0x1a, 0xbf,
+	0x3e, 0x39, 0x5c, 0x04, 0xd5, 0xfd, 0x9f, 0x4b, 0xbe, 0x58, 0xb7, 0x19, 0x07, 0x2f, 0x8d, 0x8e,
+	0x66, 0x8b, 0x1f, 0x83, 0x8f, 0x40, 0xfe, 0xe0, 0xe4, 0x68, 0x16, 0x94, 0x40, 0x86, 0x8f, 0xe6,
+	0x0b, 0xf8, 0xb8, 0x0c, 0x1c, 0xc3, 0xef, 0x47, 0xc3, 0x1f, 0x82, 0x1d, 0xda, 0x22, 0xf5, 0x19,
+	0x1f, 0x09, 0xe4, 0xda, 0xa5, 0xb7, 0x48, 0x73, 0xf6, 0xfa, 0xcd, 0x48, 0xcc, 0x47, 0xfc, 0xed,
+	0x88, 0x07, 0x15, 0xf8, 0xf6, 0x78, 0xba, 0x98, 0x8c, 0x7f, 0x0c, 0xaa, 0x34, 0x20, 0xad, 0xe1,
+	0xec, 0x64, 0x72, 0x3c, 0x9e, 0x3a, 0xf6, 0x1a, 0xbd, 0x4d, 0xda, 0x5b, 0xc4, 0xbd, 0x57, 0x07,
+	0x68, 0x3c, 0x7a, 0xbd, 0x38, 0xe1, 0x23, 0x0f, 0x35, 0xe0, 0xeb, 0xb7, 0x23, 0x3e, 0x9f, 0x4c,
+	0x8f, 0x03, 0x02, 0xff, 0xfd, 0xf3, 0xf5, 0x64, 0x21, 0x66, 0x93, 0x83, 0xa0, 0x49, 0xef, 0x90,
+	0xe0, 0xda, 0x7f, 0x62, 0xf8, 0xfd, 0xe1, 0x41, 0xd0, 0xfa, 0x5f, 0x00, 0x00, 0x00, 0xff, 0xff,
+	0x16, 0xc7, 0x59, 0xf5, 0xa5, 0x0d, 0x00, 0x00,
+}
diff --git a/vendor/github.com/checkpoint-restore/go-criu/test/main.go b/vendor/github.com/checkpoint-restore/go-criu/test/main.go
new file mode 100644
index 000000000..418ebb843
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/test/main.go
@@ -0,0 +1,133 @@
+package main
+
+import (
+	"fmt"
+	"github.com/checkpoint-restore/go-criu"
+	"github.com/checkpoint-restore/go-criu/rpc"
+	"github.com/golang/protobuf/proto"
+	"os"
+	"strconv"
+)
+
+// TestNfy struct
+type TestNfy struct {
+	criu.NoNotify
+}
+
+// PreDump test function
+func (c TestNfy) PreDump() error {
+	fmt.Printf("TEST PRE DUMP\n")
+	return nil
+}
+
+func doDump(c *criu.Criu, pidS string, imgDir string, pre bool, prevImg string) error {
+	fmt.Printf("Dumping\n")
+	pid, _ := strconv.Atoi(pidS)
+	img, err := os.Open(imgDir)
+	if err != nil {
+		return fmt.Errorf("can't open image dir (%s)", err)
+	}
+	defer img.Close()
+
+	opts := rpc.CriuOpts{
+		Pid:         proto.Int32(int32(pid)),
+		ImagesDirFd: proto.Int32(int32(img.Fd())),
+		LogLevel:    proto.Int32(4),
+		LogFile:     proto.String("dump.log"),
+	}
+
+	if prevImg != "" {
+		opts.ParentImg = proto.String(prevImg)
+		opts.TrackMem = proto.Bool(true)
+	}
+
+	if pre {
+		err = c.PreDump(opts, TestNfy{})
+	} else {
+		err = c.Dump(opts, TestNfy{})
+	}
+	if err != nil {
+		return fmt.Errorf("dump fail (%s)", err)
+	}
+
+	return nil
+}
+
+// Usage: test $act $pid $images_dir
+func main() {
+	c := criu.MakeCriu()
+	// Read out CRIU version
+	version, err := c.GetCriuVersion()
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+	fmt.Println("CRIU version", version)
+	// Check if version at least 3.2
+	result, err := c.IsCriuAtLeast(30200)
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+	if !result {
+		fmt.Println("CRIU too old")
+		os.Exit(1)
+	}
+	act := os.Args[1]
+	switch act {
+	case "dump":
+		err := doDump(c, os.Args[2], os.Args[3], false, "")
+		if err != nil {
+			fmt.Print(err)
+			os.Exit(1)
+		}
+	case "dump2":
+		err := c.Prepare()
+		if err != nil {
+			fmt.Print(err)
+			os.Exit(1)
+		}
+
+		err = doDump(c, os.Args[2], os.Args[3]+"/pre", true, "")
+		if err != nil {
+			fmt.Printf("pre-dump failed")
+			fmt.Print(err)
+			os.Exit(1)
+		}
+		err = doDump(c, os.Args[2], os.Args[3], false, "./pre")
+		if err != nil {
+			fmt.Printf("dump failed")
+			fmt.Print(err)
+			os.Exit(1)
+		}
+
+		c.Cleanup()
+	case "restore":
+		fmt.Printf("Restoring\n")
+		img, err := os.Open(os.Args[2])
+		if err != nil {
+			fmt.Printf("can't open image dir")
+			os.Exit(1)
+		}
+		defer img.Close()
+
+		opts := rpc.CriuOpts{
+			ImagesDirFd: proto.Int32(int32(img.Fd())),
+			LogLevel:    proto.Int32(4),
+			LogFile:     proto.String("restore.log"),
+		}
+
+		err = c.Restore(opts, nil)
+		if err != nil {
+			fmt.Printf("Error:")
+			fmt.Print(err)
+			fmt.Printf("\n")
+			os.Exit(1)
+		}
+	default:
+		fmt.Printf("unknown action\n")
+		os.Exit(1)
+	}
+
+	fmt.Printf("Success\n")
+}
diff --git a/vendor/github.com/checkpoint-restore/go-criu/test/phaul-main.go b/vendor/github.com/checkpoint-restore/go-criu/test/phaul-main.go
new file mode 100644
index 000000000..f1bec2c55
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/test/phaul-main.go
@@ -0,0 +1,192 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"github.com/checkpoint-restore/go-criu"
+	"github.com/checkpoint-restore/go-criu/phaul"
+	"github.com/checkpoint-restore/go-criu/rpc"
+	"github.com/golang/protobuf/proto"
+)
+
+type testLocal struct {
+	criu.NoNotify
+	r *testRemote
+}
+
+type testRemote struct {
+	srv *phaul.Server
+}
+
+/* Dir where test will put dump images */
+const imagesDir = "image"
+
+func prepareImages() error {
+	err := os.Mkdir(imagesDir, 0700)
+	if err != nil {
+		return err
+	}
+
+	/* Work dir for PhaulClient */
+	err = os.Mkdir(imagesDir+"/local", 0700)
+	if err != nil {
+		return err
+	}
+
+	/* Work dir for PhaulServer */
+	err = os.Mkdir(imagesDir+"/remote", 0700)
+	if err != nil {
+		return err
+	}
+
+	/* Work dir for DumpCopyRestore */
+	err = os.Mkdir(imagesDir+"/test", 0700)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func mergeImages(dumpDir, lastPreDumpDir string) error {
+	idir, err := os.Open(dumpDir)
+	if err != nil {
+		return err
+	}
+
+	defer idir.Close()
+
+	imgs, err := idir.Readdirnames(0)
+	if err != nil {
+		return err
+	}
+
+	for _, fname := range imgs {
+		if !strings.HasSuffix(fname, ".img") {
+			continue
+		}
+
+		fmt.Printf("\t%s -> %s/\n", fname, lastPreDumpDir)
+		err = syscall.Link(dumpDir+"/"+fname, lastPreDumpDir+"/"+fname)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (r *testRemote) doRestore() error {
+	lastSrvImagesDir := r.srv.LastImagesDir()
+	/*
+	 * In imagesDir we have images from dump, in the
+	 * lastSrvImagesDir -- where server-side images
+	 * (from page server, with pages and pagemaps) are.
+	 * Need to put former into latter and restore from
+	 * them.
+	 */
+	err := mergeImages(imagesDir+"/test", lastSrvImagesDir)
+	if err != nil {
+		return err
+	}
+
+	imgDir, err := os.Open(lastSrvImagesDir)
+	if err != nil {
+		return err
+	}
+	defer imgDir.Close()
+
+	opts := rpc.CriuOpts{
+		LogLevel:    proto.Int32(4),
+		LogFile:     proto.String("restore.log"),
+		ImagesDirFd: proto.Int32(int32(imgDir.Fd())),
+	}
+
+	cr := r.srv.GetCriu()
+	fmt.Printf("Do restore\n")
+	return cr.Restore(opts, nil)
+}
+
+func (l *testLocal) PostDump() error {
+	return l.r.doRestore()
+}
+
+func (l *testLocal) DumpCopyRestore(cr *criu.Criu, cfg phaul.Config, lastClnImagesDir string) error {
+	fmt.Printf("Final stage\n")
+
+	imgDir, err := os.Open(imagesDir + "/test")
+	if err != nil {
+		return err
+	}
+	defer imgDir.Close()
+
+	psi := rpc.CriuPageServerInfo{
+		Fd: proto.Int32(int32(cfg.Memfd)),
+	}
+
+	opts := rpc.CriuOpts{
+		Pid:         proto.Int32(int32(cfg.Pid)),
+		LogLevel:    proto.Int32(4),
+		LogFile:     proto.String("dump.log"),
+		ImagesDirFd: proto.Int32(int32(imgDir.Fd())),
+		TrackMem:    proto.Bool(true),
+		ParentImg:   proto.String(lastClnImagesDir),
+		Ps:          &psi,
+	}
+
+	fmt.Printf("Do dump\n")
+	return cr.Dump(opts, l)
+}
+
+func main() {
+	pid, _ := strconv.Atoi(os.Args[1])
+	fds, err := syscall.Socketpair(syscall.AF_LOCAL, syscall.SOCK_STREAM, 0)
+	if err != nil {
+		fmt.Printf("Can't make socketpair: %v\n", err)
+		os.Exit(1)
+	}
+
+	err = prepareImages()
+	if err != nil {
+		fmt.Printf("Can't prepare dirs for images: %v\n", err)
+		os.Exit(1)
+		return
+	}
+
+	fmt.Printf("Make server part (socket %d)\n", fds[1])
+	srv, err := phaul.MakePhaulServer(phaul.Config{
+		Pid:   pid,
+		Memfd: fds[1],
+		Wdir:  imagesDir + "/remote"})
+	if err != nil {
+		fmt.Printf("Unable to run a server: %v", err)
+		os.Exit(1)
+		return
+	}
+
+	r := &testRemote{srv}
+
+	fmt.Printf("Make client part (socket %d)\n", fds[0])
+	cln, err := phaul.MakePhaulClient(&testLocal{r: r}, srv,
+		phaul.Config{
+			Pid:   pid,
+			Memfd: fds[0],
+			Wdir:  imagesDir + "/local"})
+	if err != nil {
+		fmt.Printf("Unable to run a client: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Printf("Migrate\n")
+	err = cln.Migrate()
+	if err != nil {
+		fmt.Printf("Failed: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Printf("SUCCESS!\n")
+}
diff --git a/vendor/github.com/checkpoint-restore/go-criu/test/piggie.c b/vendor/github.com/checkpoint-restore/go-criu/test/piggie.c
new file mode 100644
index 000000000..1dc0801c0
--- /dev/null
+++ b/vendor/github.com/checkpoint-restore/go-criu/test/piggie.c
@@ -0,0 +1,57 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <sched.h>
+
+#define STKS	(4*4096)
+
+#ifndef CLONE_NEWPID
+#define CLONE_NEWPID    0x20000000
+#endif
+
+static int do_test(void *logf)
+{
+	int fd, i = 0;
+
+	setsid();
+
+	close(0);
+	close(1);
+	close(2);
+
+	fd = open("/dev/null", O_RDONLY);
+	if (fd != 0) {
+		dup2(fd, 0);
+		close(fd);
+	}
+
+	fd = open(logf, O_WRONLY | O_TRUNC | O_CREAT, 0600);
+	dup2(fd, 1);
+	dup2(fd, 2);
+	if (fd != 1 && fd != 2)
+		close(fd);
+
+	while (1) {
+		sleep(1);
+		printf("%d\n", i++);
+		fflush(stdout);
+	}
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int pid;
+	void *stk;
+
+	stk = mmap(NULL, STKS, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANON | MAP_GROWSDOWN, 0, 0);
+	pid = clone(do_test, stk + STKS, SIGCHLD | CLONE_NEWPID, argv[1]);
+	printf("Child forked, pid %d\n", pid);
+
+	return 0;
+}