create proof of concept ssh library integration

This is a first attempt to integrate the golang crypto/ssh library for
handling remote connections. As it stands, this features is limited to
identity files without passphrases. It needs to be expanded to include
key+passphrase and password verifications as well.

waveshell/pkg/server/server.go

@@ -651,7 +651,7 @@ func (m *MServer) runCommand(runPacket *packet.RunPacketType) {
 		m.Sender.SendErrorResponse(runPacket.ReqId, fmt.Errorf("server run packets require valid ck: %s", err))
 		return
 	}
-	cproc, _, err := shexec.MakeClientProc(context.Background(), ecmd)
+	cproc, _, err := shexec.MakeClientProc(context.Background(), shexec.CmdWrap{Cmd: ecmd})
 	if err != nil {
 		m.Sender.SendErrorResponse(runPacket.ReqId, fmt.Errorf("starting mshell client: %s", err))
 		return

waveshell/pkg/shexec/client.go

@@ -12,6 +12,7 @@ import (
 
 	"github.com/wavetermdev/waveterm/waveshell/pkg/base"
 	"github.com/wavetermdev/waveterm/waveshell/pkg/packet"
+	"golang.org/x/crypto/ssh"
 	"golang.org/x/mod/semver"
 )
 
@@ -19,8 +20,97 @@ import (
 
 const NotFoundVersion = "v0.0"
 
+type CmdWrap struct {
+	Cmd *exec.Cmd
+}
+
+func (cw CmdWrap) Kill() {
+	cw.Cmd.Process.Kill()
+}
+
+func (cw CmdWrap) Wait() error {
+	return cw.Cmd.Wait()
+}
+
+func (cw CmdWrap) Sender() (*packet.PacketSender, io.WriteCloser, error) {
+	inputWriter, err := cw.Cmd.StdinPipe()
+	if err != nil {
+		return nil, nil, fmt.Errorf("creating stdin pipe: %v", err)
+	}
+	sender := packet.MakePacketSender(inputWriter, nil)
+	return sender, inputWriter, nil
+}
+
+func (cw CmdWrap) Parser() (*packet.PacketParser, io.ReadCloser, io.ReadCloser, error) {
+	stdoutReader, err := cw.Cmd.StdoutPipe()
+	if err != nil {
+		return nil, nil, nil, fmt.Errorf("creating stdout pipe: %v", err)
+	}
+	stderrReader, err := cw.Cmd.StderrPipe()
+	if err != nil {
+		return nil, nil, nil, fmt.Errorf("creating stderr pipe: %v", err)
+	}
+	stdoutPacketParser := packet.MakePacketParser(stdoutReader, &packet.PacketParserOpts{IgnoreUntilValid: true})
+	stderrPacketParser := packet.MakePacketParser(stderrReader, nil)
+	packetParser := packet.CombinePacketParsers(stdoutPacketParser, stderrPacketParser, true)
+	return packetParser, stdoutReader, stderrReader, nil
+}
+
+func (cw CmdWrap) Start() error {
+	return cw.Cmd.Start()
+}
+
+type SessionWrap struct {
+	Session  *ssh.Session
+	StartCmd string
+}
+
+func (sw SessionWrap) Kill() {
+	sw.Session.Close()
+}
+
+func (sw SessionWrap) Wait() error {
+	return sw.Session.Wait()
+}
+
+func (sw SessionWrap) Start() error {
+	return sw.Session.Start(sw.StartCmd)
+}
+
+func (sw SessionWrap) Sender() (*packet.PacketSender, io.WriteCloser, error) {
+	inputWriter, err := sw.Session.StdinPipe()
+	if err != nil {
+		return nil, nil, fmt.Errorf("creating stdin pipe: %v", err)
+	}
+	sender := packet.MakePacketSender(inputWriter, nil)
+	return sender, inputWriter, nil
+}
+
+func (sw SessionWrap) Parser() (*packet.PacketParser, io.ReadCloser, io.ReadCloser, error) {
+	stdoutReader, err := sw.Session.StdoutPipe()
+	if err != nil {
+		return nil, nil, nil, fmt.Errorf("creating stdout pipe: %v", err)
+	}
+	stderrReader, err := sw.Session.StderrPipe()
+	if err != nil {
+		return nil, nil, nil, fmt.Errorf("creating stderr pipe: %v", err)
+	}
+	stdoutPacketParser := packet.MakePacketParser(stdoutReader, &packet.PacketParserOpts{IgnoreUntilValid: true})
+	stderrPacketParser := packet.MakePacketParser(stderrReader, nil)
+	packetParser := packet.CombinePacketParsers(stdoutPacketParser, stderrPacketParser, true)
+	return packetParser, io.NopCloser(stdoutReader), io.NopCloser(stderrReader), nil
+}
+
+type ConnInterface interface {
+	Kill()
+	Wait() error
+	Sender() (*packet.PacketSender, io.WriteCloser, error)
+	Parser() (*packet.PacketParser, io.ReadCloser, io.ReadCloser, error)
+	Start() error
+}
+
 type ClientProc struct {
-	Cmd          *exec.Cmd
+	Cmd          ConnInterface
 	InitPk       *packet.InitPacketType
 	StartTs      time.Time
 	StdinWriter  io.WriteCloser
@@ -31,28 +121,20 @@ type ClientProc struct {
 }
 
 // returns (clientproc, initpk, error)
-func MakeClientProc(ctx context.Context, ecmd *exec.Cmd) (*ClientProc, *packet.InitPacketType, error) {
-	inputWriter, err := ecmd.StdinPipe()
-	if err != nil {
-		return nil, nil, fmt.Errorf("creating stdin pipe: %v", err)
-	}
-	stdoutReader, err := ecmd.StdoutPipe()
-	if err != nil {
-		return nil, nil, fmt.Errorf("creating stdout pipe: %v", err)
-	}
-	stderrReader, err := ecmd.StderrPipe()
-	if err != nil {
-		return nil, nil, fmt.Errorf("creating stderr pipe: %v", err)
-	}
+func MakeClientProc(ctx context.Context, ecmd ConnInterface) (*ClientProc, *packet.InitPacketType, error) {
 	startTs := time.Now()
+	sender, inputWriter, err := ecmd.Sender()
+	if err != nil {
+		return nil, nil, err
+	}
+	packetParser, stdoutReader, stderrReader, err := ecmd.Parser()
+	if err != nil {
+		return nil, nil, err
+	}
 	err = ecmd.Start()
 	if err != nil {
 		return nil, nil, fmt.Errorf("running local client: %w", err)
 	}
-	sender := packet.MakePacketSender(inputWriter, nil)
-	stdoutPacketParser := packet.MakePacketParser(stdoutReader, &packet.PacketParserOpts{IgnoreUntilValid: true})
-	stderrPacketParser := packet.MakePacketParser(stderrReader, nil)
-	packetParser := packet.CombinePacketParsers(stdoutPacketParser, stderrPacketParser, true)
 	cproc := &ClientProc{
 		Cmd:          ecmd,
 		StartTs:      startTs,
@@ -107,7 +189,7 @@ func (cproc *ClientProc) Close() {
 		cproc.StderrReader.Close()
 	}
 	if cproc.Cmd != nil {
-		cproc.Cmd.Process.Kill()
+		cproc.Cmd.Kill()
 	}
 }
 

waveshell/pkg/shexec/shexec.go

@@ -24,6 +24,7 @@ import (
 	"github.com/alessio/shellescape"
 	"github.com/creack/pty"
 	"github.com/google/uuid"
+	"github.com/kevinburke/ssh_config"
 	"github.com/wavetermdev/waveterm/waveshell/pkg/base"
 	"github.com/wavetermdev/waveterm/waveshell/pkg/cirfile"
 	"github.com/wavetermdev/waveterm/waveshell/pkg/mpio"
@@ -31,6 +32,7 @@ import (
 	"github.com/wavetermdev/waveterm/waveshell/pkg/shellapi"
 	"github.com/wavetermdev/waveterm/waveshell/pkg/shellenv"
 	"github.com/wavetermdev/waveterm/waveshell/pkg/shellutil"
+	"golang.org/x/crypto/ssh"
 	"golang.org/x/mod/semver"
 	"golang.org/x/sys/unix"
 )
@@ -476,6 +478,76 @@ func (opts SSHOpts) MakeSSHExecCmd(remoteCommand string, sapi shellapi.ShellApi)
 	}
 }
 
+func (opts SSHOpts) ConnectToClient() (*ssh.Client, error) {
+	ssh_config.ReloadConfigs()
+	configIdentity, _ := ssh_config.GetStrict(opts.SSHHost, "IdentityFile")
+	var identityFile string
+	if opts.SSHIdentity != "" {
+		identityFile = opts.SSHIdentity
+	} else {
+		identityFile = configIdentity
+	}
+
+	var authMethods []ssh.AuthMethod
+	var hostKeyCallback ssh.HostKeyCallback
+	if identityFile != "" {
+		sshKeyFile, err := os.ReadFile(base.ExpandHomeDir(identityFile))
+		if err != nil {
+			return nil, fmt.Errorf("failed to read ssh key file. err: %+v", err)
+		}
+		signer, err := ssh.ParsePrivateKey(sshKeyFile)
+		if err != nil {
+			return nil, fmt.Errorf("failed to parse private ssh key. err: %+v", err)
+		}
+		/*
+			publicKey, err := ssh.ParsePublicKey(sshKeyFile)
+			if err != nil {
+				return nil, fmt.Errorf("failed to parse public ssh key. err: %+v", err)
+			}
+		*/
+		authMethods = append(authMethods, ssh.PublicKeys(signer))
+		hostKeyCallback = ssh.InsecureIgnoreHostKey()
+	} else {
+		hostKeyCallback = ssh.InsecureIgnoreHostKey()
+	}
+	configUser, _ := ssh_config.GetStrict(opts.SSHHost, "User")
+	configHostName, _ := ssh_config.GetStrict(opts.SSHHost, "HostName")
+	configPort, _ := ssh_config.GetStrict(opts.SSHHost, "Port")
+	var username string
+	if opts.SSHUser != "" {
+		username = opts.SSHUser
+	} else if configUser != "" {
+		username = configUser
+	} else {
+		user, err := user.Current()
+		if err != nil {
+			return nil, fmt.Errorf("failed to get user for ssh: %+v", err)
+		}
+		username = user.Username
+	}
+	var hostName string
+	if configHostName != "" {
+		hostName = configHostName
+	} else {
+		hostName = opts.SSHHost
+	}
+	clientConfig := &ssh.ClientConfig{
+		User:            username,
+		Auth:            authMethods,
+		HostKeyCallback: hostKeyCallback,
+	}
+	var port string
+	if opts.SSHPort != 0 && opts.SSHPort != 22 {
+		port = strconv.Itoa(opts.SSHPort)
+	} else if configPort != "" && configPort != "22" {
+		port = configPort
+	} else {
+		port = "22"
+	}
+	networkAddr := hostName + ":" + port
+	return ssh.Dial("tcp", networkAddr, clientConfig)
+}
+
 func (opts SSHOpts) MakeMShellSSHOpts() string {
 	var moreSSHOpts []string
 	if opts.SSHIdentity != "" {

wavesrv/pkg/remote/remote.go

@@ -36,6 +36,7 @@ import (
 	"github.com/wavetermdev/waveterm/wavesrv/pkg/scbase"
 	"github.com/wavetermdev/waveterm/wavesrv/pkg/scpacket"
 	"github.com/wavetermdev/waveterm/wavesrv/pkg/sstore"
+	"golang.org/x/crypto/ssh"
 	"golang.org/x/mod/semver"
 )
 
@@ -77,6 +78,12 @@ else
 fi
 `
 
+const WaveshellServerRunOnlyFmt = `
+  PATH=$PATH:~/.mshell;
+  [%PINGPACKET%]
+  mshell-[%VERSION%] --server
+`
+
 func MakeLocalMShellCommandStr(isSudo bool) (string, error) {
 	mshellPath, err := scbase.LocalMShellBinaryPath()
 	if err != nil {
@@ -95,6 +102,13 @@ func MakeServerCommandStr() string {
 	return rtn
 }
 
+func MakeServerRunOnlyCommandStr() string {
+	rtn := strings.ReplaceAll(WaveshellServerRunOnlyFmt, "[%VERSION%]", semver.MajorMinor(scbase.MShellVersion))
+	rtn = strings.ReplaceAll(rtn, "[%PINGPACKET%]", PrintPingPacket)
+	return rtn
+
+}
+
 const (
 	StatusConnected    = sstore.RemoteStatus_Connected
 	StatusConnecting   = sstore.RemoteStatus_Connecting
@@ -1206,7 +1220,286 @@ func (msh *MShellProc) getActiveShellTypes(ctx context.Context) ([]string, error
 	return utilfn.CombineStrArrays(rtn, activeShells), nil
 }
 
+func (msh *MShellProc) LaunchWithSshLib(interactive bool) {
+	remoteCopy := msh.GetRemoteCopy()
+	if remoteCopy.Archived {
+		msh.WriteToPtyBuffer("cannot launch archived remote\n")
+		return
+	}
+	curStatus := msh.GetStatus()
+	if curStatus == StatusConnected {
+		msh.WriteToPtyBuffer("remote is already connected (no action taken)\n")
+		return
+	}
+	if curStatus == StatusConnecting {
+		msh.WriteToPtyBuffer("remote is already connecting, disconnect before trying to connect again\n")
+		return
+	}
+	istatus := msh.GetInstallStatus()
+	if istatus == StatusConnecting {
+		msh.WriteToPtyBuffer("remote is trying to install, cancel install before trying to connect again\n")
+		return
+	}
+	if remoteCopy.SSHOpts.SSHPort != 0 && remoteCopy.SSHOpts.SSHPort != 22 {
+		msh.WriteToPtyBuffer("connecting to %s (port %d)...\n", remoteCopy.RemoteCanonicalName, remoteCopy.SSHOpts.SSHPort)
+	} else {
+		msh.WriteToPtyBuffer("connecting to %s...\n", remoteCopy.RemoteCanonicalName)
+	}
+	sshOpts := convertSSHOpts(remoteCopy.SSHOpts)
+	sshOpts.SSHErrorsToTty = true
+	if remoteCopy.ConnectMode != sstore.ConnectModeManual && remoteCopy.SSHOpts.SSHPassword == "" && !interactive {
+		sshOpts.BatchMode = true
+	}
+	client, err := sshOpts.ConnectToClient()
+	if err != nil {
+		msh.WriteToPtyBuffer("*error, ssh cannot connect to client: %v\n", err)
+	}
+	makeClientCtx, makeClientCancelFn := context.WithCancel(context.Background())
+	defer makeClientCancelFn()
+	msh.WithLock(func() {
+		msh.Err = nil
+		msh.ErrNoInitPk = false
+		msh.Status = StatusConnecting
+		msh.MakeClientCancelFn = makeClientCancelFn
+		deadlineTime := time.Now().Add(RemoteConnectTimeout)
+		msh.MakeClientDeadline = &deadlineTime
+		go msh.NotifyRemoteUpdate()
+	})
+	go msh.watchClientDeadlineTime()
+	session, err := client.NewSession()
+	if err != nil {
+		msh.WriteToPtyBuffer("*error, ssh cannot create session: %v\n", err)
+	}
+	cproc, initPk, err := shexec.MakeClientProc(makeClientCtx, shexec.SessionWrap{Session: session, StartCmd: MakeServerRunOnlyCommandStr()})
+	// TODO check if initPk.State is not nil
+	var mshellVersion string
+	var hitDeadline bool
+	msh.WithLock(func() {
+		msh.MakeClientCancelFn = nil
+		if time.Now().After(*msh.MakeClientDeadline) {
+			hitDeadline = true
+		}
+		msh.MakeClientDeadline = nil
+		if initPk == nil {
+			msh.ErrNoInitPk = true
+		}
+		if initPk != nil {
+			msh.UName = initPk.UName
+			mshellVersion = initPk.Version
+			if semver.Compare(mshellVersion, scbase.MShellVersion) < 0 {
+				// only set NeedsMShellUpgrade if we got an InitPk
+				msh.NeedsMShellUpgrade = true
+			}
+			msh.InitPkShellType = initPk.Shell
+		}
+		msh.StateMap.Clear()
+		// no notify here, because we'll call notify in either case below
+	})
+	if err == context.Canceled {
+		if hitDeadline {
+			msh.WriteToPtyBuffer("*connect timeout\n")
+			msh.setErrorStatus(errors.New("connect timeout"))
+		} else {
+			msh.WriteToPtyBuffer("*forced disconnection\n")
+			msh.WithLock(func() {
+				msh.Status = StatusDisconnected
+				go msh.NotifyRemoteUpdate()
+			})
+		}
+		return
+	}
+	if err == nil && semver.MajorMinor(mshellVersion) != semver.MajorMinor(scbase.MShellVersion) {
+		err = fmt.Errorf("mshell version is not compatible current=%s remote=%s", scbase.MShellVersion, mshellVersion)
+	}
+	if err != nil {
+		cs := fmt.Sprintf("error: %v\n", err)
+		os.WriteFile("/Users/oneirocosm/.waveterm-dev/temp.txt", []byte(cs), 0644)
+		msh.setErrorStatus(err)
+		msh.WriteToPtyBuffer("*error connecting to remote: %v\n", err)
+		go msh.tryAutoInstall()
+		return
+	}
+	msh.updateRemoteStateVars(context.Background(), msh.RemoteId, initPk)
+	msh.WithLock(func() {
+		msh.ServerProc = cproc
+		msh.Status = StatusConnected
+	})
+	go func() {
+		exitErr := cproc.Cmd.Wait()
+		exitCode := shexec.GetExitCode(exitErr)
+		msh.WithLock(func() {
+			if msh.Status == StatusConnected || msh.Status == StatusConnecting {
+				msh.Status = StatusDisconnected
+				go msh.NotifyRemoteUpdate()
+			}
+		})
+		msh.WriteToPtyBuffer("*disconnected exitcode=%d\n", exitCode)
+	}()
+	go msh.ProcessPackets()
+	msh.initActiveShells()
+	go msh.NotifyRemoteUpdate()
+	return
+}
+
 func (msh *MShellProc) Launch(interactive bool) {
+	remoteCopy := msh.GetRemoteCopy()
+	if remoteCopy.Archived {
+		msh.WriteToPtyBuffer("cannot launch archived remote\n")
+		return
+	}
+	curStatus := msh.GetStatus()
+	if curStatus == StatusConnected {
+		msh.WriteToPtyBuffer("remote is already connected (no action taken)\n")
+		return
+	}
+	if curStatus == StatusConnecting {
+		msh.WriteToPtyBuffer("remote is already connecting, disconnect before trying to connect again\n")
+		return
+	}
+	sapi, err := shellapi.MakeShellApi(msh.GetShellType())
+	if err != nil {
+		msh.WriteToPtyBuffer("*error, %v\n", err)
+		return
+	}
+	istatus := msh.GetInstallStatus()
+	if istatus == StatusConnecting {
+		msh.WriteToPtyBuffer("remote is trying to install, cancel install before trying to connect again\n")
+		return
+	}
+	if remoteCopy.SSHOpts.SSHPort != 0 && remoteCopy.SSHOpts.SSHPort != 22 {
+		msh.WriteToPtyBuffer("connecting to %s (port %d)...\n", remoteCopy.RemoteCanonicalName, remoteCopy.SSHOpts.SSHPort)
+	} else {
+		msh.WriteToPtyBuffer("connecting to %s...\n", remoteCopy.RemoteCanonicalName)
+	}
+	sshOpts := convertSSHOpts(remoteCopy.SSHOpts)
+	sshOpts.SSHErrorsToTty = true
+	if remoteCopy.ConnectMode != sstore.ConnectModeManual && remoteCopy.SSHOpts.SSHPassword == "" && !interactive {
+		sshOpts.BatchMode = true
+	}
+	makeClientCtx, makeClientCancelFn := context.WithCancel(context.Background())
+	defer makeClientCancelFn()
+	msh.WithLock(func() {
+		msh.Err = nil
+		msh.ErrNoInitPk = false
+		msh.Status = StatusConnecting
+		msh.MakeClientCancelFn = makeClientCancelFn
+		deadlineTime := time.Now().Add(RemoteConnectTimeout)
+		msh.MakeClientDeadline = &deadlineTime
+		go msh.NotifyRemoteUpdate()
+	})
+	go msh.watchClientDeadlineTime()
+	var cmdStr string
+	var cproc *shexec.ClientProc
+	var initPk *packet.InitPacketType
+	if sshOpts.SSHHost == "" && remoteCopy.Local {
+		cmdStr, err = MakeLocalMShellCommandStr(remoteCopy.IsSudo())
+		if err != nil {
+			msh.WriteToPtyBuffer("*error, cannot find local mshell binary: %v\n", err)
+			return
+		}
+		ecmd := sshOpts.MakeSSHExecCmd(cmdStr, sapi)
+		var cmdPty *os.File
+		cmdPty, err = msh.addControllingTty(ecmd)
+		if err != nil {
+			statusErr := fmt.Errorf("cannot attach controlling tty to mshell command: %w", err)
+			msh.WriteToPtyBuffer("*error, %s\n", statusErr.Error())
+			msh.setErrorStatus(statusErr)
+			return
+		}
+		defer func() {
+			if len(ecmd.ExtraFiles) > 0 {
+				ecmd.ExtraFiles[len(ecmd.ExtraFiles)-1].Close()
+			}
+		}()
+		go msh.RunPtyReadLoop(cmdPty)
+		if remoteCopy.SSHOpts.SSHPassword != "" {
+			go msh.WaitAndSendPassword(remoteCopy.SSHOpts.SSHPassword)
+		}
+		cproc, initPk, err = shexec.MakeClientProc(makeClientCtx, shexec.CmdWrap{Cmd: ecmd})
+	} else {
+		var client *ssh.Client
+		client, err = sshOpts.ConnectToClient()
+		es := fmt.Sprintf("err: %v\n", err)
+		os.WriteFile("/Users/oneirocosm/.waveterm-dev/temp.txt", []byte(es), 0644)
+		if err != nil {
+			msh.WriteToPtyBuffer("*error, ssh cannot connect to client: %v\n", err)
+		}
+		var session *ssh.Session
+		session, err = client.NewSession()
+		if err != nil {
+			msh.WriteToPtyBuffer("*error, ssh cannot create session: %v\n", err)
+		}
+		cproc, initPk, err = shexec.MakeClientProc(makeClientCtx, shexec.SessionWrap{Session: session, StartCmd: MakeServerRunOnlyCommandStr()})
+	}
+	// TODO check if initPk.State is not nil
+	var mshellVersion string
+	var hitDeadline bool
+	msh.WithLock(func() {
+		msh.MakeClientCancelFn = nil
+		if time.Now().After(*msh.MakeClientDeadline) {
+			hitDeadline = true
+		}
+		msh.MakeClientDeadline = nil
+		if initPk == nil {
+			msh.ErrNoInitPk = true
+		}
+		if initPk != nil {
+			msh.UName = initPk.UName
+			mshellVersion = initPk.Version
+			if semver.Compare(mshellVersion, scbase.MShellVersion) < 0 {
+				// only set NeedsMShellUpgrade if we got an InitPk
+				msh.NeedsMShellUpgrade = true
+			}
+			msh.InitPkShellType = initPk.Shell
+		}
+		msh.StateMap.Clear()
+		// no notify here, because we'll call notify in either case below
+	})
+	if err == context.Canceled {
+		if hitDeadline {
+			msh.WriteToPtyBuffer("*connect timeout\n")
+			msh.setErrorStatus(errors.New("connect timeout"))
+		} else {
+			msh.WriteToPtyBuffer("*forced disconnection\n")
+			msh.WithLock(func() {
+				msh.Status = StatusDisconnected
+				go msh.NotifyRemoteUpdate()
+			})
+		}
+		return
+	}
+	if err == nil && semver.MajorMinor(mshellVersion) != semver.MajorMinor(scbase.MShellVersion) {
+		err = fmt.Errorf("mshell version is not compatible current=%s remote=%s", scbase.MShellVersion, mshellVersion)
+	}
+	if err != nil {
+		msh.setErrorStatus(err)
+		msh.WriteToPtyBuffer("*error connecting to remote: %v\n", err)
+		go msh.tryAutoInstall()
+		return
+	}
+	msh.updateRemoteStateVars(context.Background(), msh.RemoteId, initPk)
+	msh.WithLock(func() {
+		msh.ServerProc = cproc
+		msh.Status = StatusConnected
+	})
+	go func() {
+		exitErr := cproc.Cmd.Wait()
+		exitCode := shexec.GetExitCode(exitErr)
+		msh.WithLock(func() {
+			if msh.Status == StatusConnected || msh.Status == StatusConnecting {
+				msh.Status = StatusDisconnected
+				go msh.NotifyRemoteUpdate()
+			}
+		})
+		msh.WriteToPtyBuffer("*disconnected exitcode=%d\n", exitCode)
+	}()
+	go msh.ProcessPackets()
+	msh.initActiveShells()
+	go msh.NotifyRemoteUpdate()
+	return
+}
+
+func (msh *MShellProc) LaunchOld(interactive bool) {
 	remoteCopy := msh.GetRemoteCopy()
 	if remoteCopy.Archived {
 		msh.WriteToPtyBuffer("cannot launch archived remote\n")
@@ -1281,7 +1574,7 @@ func (msh *MShellProc) Launch(interactive bool) {
 		go msh.NotifyRemoteUpdate()
 	})
 	go msh.watchClientDeadlineTime()
-	cproc, initPk, err := shexec.MakeClientProc(makeClientCtx, ecmd)
+	cproc, initPk, err := shexec.MakeClientProc(makeClientCtx, shexec.CmdWrap{Cmd: ecmd})
 	// TODO check if initPk.State is not nil
 	var mshellVersion string
 	var hitDeadline bool