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}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.