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How to use guestProxy method of gvisor Package

Best Syzkaller code snippet using gvisor.guestProxy

gvisor.go

Source:gvisor.go

...229	defer wpipe.Close()230	inst.merger.Add("cmd", rpipe)231	cmd.Stdout = wpipe232	cmd.Stderr = wpipe233	guestSock, err := inst.guestProxy()234	if err != nil {235		return nil, nil, err236	}237	if guestSock != nil {238		defer guestSock.Close()239		cmd.Stdin = guestSock240	}241	if err := cmd.Start(); err != nil {242		return nil, nil, err243	}244	errc := make(chan error, 1)245	signal := func(err error) {246		select {247		case errc <- err:248		default:249		}250	}251	go func() {252		select {253		case <-time.After(timeout):254			signal(vmimpl.ErrTimeout)255		case <-stop:256			signal(vmimpl.ErrTimeout)257		case err := <-inst.merger.Err:258			cmd.Process.Kill()259			if cmdErr := cmd.Wait(); cmdErr == nil {260				// If the command exited successfully, we got EOF error from merger.261				// But in this case no error has happened and the EOF is expected.262				err = nil263			}264			signal(err)265			return266		}267		cmd.Process.Kill()268		cmd.Wait()269	}()270	return inst.merger.Output, errc, nil271}272func (inst *instance) guestProxy() (*os.File, error) {273	if inst.port == 0 {274		return nil, nil275	}276	// One does not simply let gvisor guest connect to host tcp port.277	// We create a unix socket, pass it to guest in stdin.278	// Guest will use it instead of dialing manager directly.279	// On host we connect to manager tcp port and proxy between the tcp and unix connections.280	socks, err := syscall.Socketpair(syscall.AF_UNIX, syscall.SOCK_STREAM, 0)281	if err != nil {282		return nil, err283	}284	hostSock := os.NewFile(uintptr(socks[0]), "host unix proxy")285	guestSock := os.NewFile(uintptr(socks[1]), "guest unix proxy")286	conn, err := net.Dial("tcp", fmt.Sprintf("localhost:%v", inst.port))...

guestProxy

Using AI Code Generation

1import (2func main() {3    if len(os.Args) < 2 {4        fmt.Printf("Usage: %s [command]5        os.Exit(1)6    }7    gvisor, err := NewGVisor()8    if err != nil {9        log.Fatalf("failed to create gVisor: %v", err)10    }11    cmd := exec.Command(os.Args[1], os.Args[2:]...)12    cmd.SysProcAttr = &syscall.SysProcAttr{13    }14    cmd.Env = os.Environ()15    cmd.Env = append(cmd.Env, fmt.Sprintf("GUEST_PROXY_ADDR=%s", gvisor.SocketPath()))16    cmd.Env = append(cmd.Env, fmt.Sprintf("GUEST_PROXY_PORT=%d", gvisor.Port))17    if err := cmd.Run(); err != nil {18        log.Fatalf("failed to run command: %v", err)19    }20}21type GVisor struct {22}23func NewGVisor() (*GVisor, error) {24    l, err := net.Listen("tcp", ":0")25    if err != nil {26    }27    defer l.Close()28    port := l.Addr().(*net.TCPAddr).Port

guestProxy

Using AI Code Generation

1import (2func main() {3	done := make(chan struct{}, 0)4	fmt.Println("Hello, playground")5	js.Global().Set("guestProxy", js.FuncOf(guestProxy))6}7func guestProxy(this js.Value, args []js.Value) interface{} {8	fmt.Println("Inside guestProxy")9}10import (11func main() {12	done := make(chan struct{}, 0)13	fmt.Println("Hello, playground")14	js.Global().Set("guestProxy", js.FuncOf(guestProxy))15}16func guestProxy(this js.Value, args []js.Value) interface{} {17	fmt.Println("Inside guestProxy")18}19import (20func main() {21	done := make(chan struct{}, 0)22	fmt.Println("Hello, playground")23	js.Global().Set("guestProxy", js.FuncOf(guestProxy))24}25func guestProxy(this js.Value, args []js.Value) interface{} {26	fmt.Println("Inside guestProxy")27}28import (29func main() {30	done := make(chan struct{}, 0)31	fmt.Println("Hello, playground")32	js.Global().Set("guestProxy", js.FuncOf(guestProxy))33}34func guestProxy(this js.Value, args []js.Value) interface{} {35	fmt.Println("Inside guestProxy")36}

guestProxy

Using AI Code Generation

1import (2func main() {3	ctx := namespaces.WithNamespace(context.Background(), "test")4	client, err := containerd.New("/run/containerd/containerd.sock")5	if err != nil {6		log.Fatal(err)7	}8	defer client.Close()9	ctx, cancel := context.WithTimeout(ctx, 10*time.Second)10	defer cancel()11	image, err := client.Pull(ctx, "docker.io/library/alpine:latest", containerd.WithPullUnpack)12	if err != nil {13		log.Fatal(err)14	}15	task, err := client.NewTask(ctx, uuid.New().String(),16		containerd.NewTaskOpts{17			ContainerOpts: []containerd.NewContainerOpts{18				containerd.WithImage(image),19				containerd.WithNewSnapshot("snapshot-"+uuid.New().String(), image),20				containerd.WithRuntime("io.containerd.runc.v2", &options.Options{21				}),22			},23			IO: newIO(),24			Spec: &oci.Spec{25				Process: &oci.Process{26					Args: []string{"sh"},27				},28			},29		},30	if err != nil {31		log.Fatal(err)32	}33	exitStatus, err := task.Wait(ctx)34	if err != nil {35		log.Fatal(err)36	}37	if err := task.Delete(ctx); err != nil {38		log.Fatal(err)39	}40	status, err := exitStatus.Result()41	if err != nil {42		log.Fatal(err)43	}44	fmt.Printf("exited with status %d

guestProxy

Using AI Code Generation

1gvisor g = new gvisor();2g.guestProxy();3gvisor g = new gvisor();4g.guestProxy();5gvisor g = new gvisor();6g.guestProxy();7gvisor g = new gvisor();8g.guestProxy();9gvisor g = new gvisor();10g.guestProxy();11gvisor g = new gvisor();12g.guestProxy();13gvisor g = new gvisor();14g.guestProxy();15gvisor g = new gvisor();16g.guestProxy();17gvisor g = new gvisor();18g.guestProxy();19gvisor g = new gvisor();20g.guestProxy();21gvisor g = new gvisor();22g.guestProxy();

guestProxy

Using AI Code Generation

1import (2func main() {3	guestProxy := proxy.NewGuestProxy(logger.NewStdoutLogger())4	fmt.Println(guestProxy.GuestAttributes("myattribute"))5}6import (7func main() {8	guestProxy := proxy.NewGuestProxy(logger.NewStdoutLogger())9	fmt.Println(guestProxy.GuestAttributes("myattribute"))10}11import (12func main() {13	guestProxy := proxy.NewGuestProxy(logger.NewStdoutLogger())14	fmt.Println(guestProxy.GuestAttributes("myattribute"))15}16import (17func main() {18	guestProxy := proxy.NewGuestProxy(logger.NewStdoutLogger())19	fmt.Println(guestProxy.GuestAttributes("myattribute"))20}21import (22func main() {23	guestProxy := proxy.NewGuestProxy(logger.NewStdoutLogger())24	fmt.Println(guestProxy.GuestAttributes("myattribute"))25}26import (27func main() {28	guestProxy := proxy.NewGuestProxy(logger.NewStdoutLogger())

guestProxy

Using AI Code Generation

1import (2func main() {3    testVM := utils.GetComputeClient()4    gvisor := utils.NewGvisor(testVM)5    gvisor.RunGuestProxy("gvisor", "runsc", "version")6}

guestProxy

Using AI Code Generation

1import (2func main() {3	g := gvisor.New()4	g.GuestProxy()5	fmt.Println("GuestProxy method called")6}7import (8func main() {9	g := gvisor.New()10	g.GuestProxy()11	fmt.Println("GuestProxy method called")12}13import (14func main() {15	g := gvisor.New()16	g.GuestProxy()17	fmt.Println("GuestProxy method called")18}19import (20func main() {21	g := gvisor.New()22	g.GuestProxy()23	fmt.Println("GuestProxy method called")24}25import (26func main() {27	g := gvisor.New()28	g.GuestProxy()29	fmt.Println("GuestProxy method called")30}31import (32func main() {33	g := gvisor.New()34	g.GuestProxy()35	fmt.Println("GuestProxy method called")36}37import (38func main() {39	g := gvisor.New()40	g.GuestProxy()41	fmt.Println("GuestProxy method called")42}43import (44func main() {45	g := gvisor.New()46	g.GuestProxy()47	fmt.Println("GuestProxy method called")48}49import (50func main() {51	g := gvisor.New()52	g.GuestProxy()53	fmt.Println("GuestProxy method called")54}

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