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How to use Close method of bhyve Package

Best Syzkaller code snippet using bhyve.Close

bhyve.go

Source:bhyve.go

...43	sshhost  string44	merger   *vmimpl.OutputMerger45	vmName   string46	bhyve    *exec.Cmd47	consolew io.WriteCloser48}49var ipRegex = regexp.MustCompile(`bound to (([0-9]+\.){3}[0-9]+) `)50var tapRegex = regexp.MustCompile(`^tap[0-9]+`)51func ctor(env *vmimpl.Env) (vmimpl.Pool, error) {52	cfg := &Config{53		Count: 1,54		CPU:   1,55		Mem:   "512M",56	}57	if err := config.LoadData(env.Config, cfg); err != nil {58		return nil, fmt.Errorf("failed to parse bhyve vm config: %v", err)59	}60	if cfg.Count < 1 || cfg.Count > 128 {61		return nil, fmt.Errorf("invalid config param count: %v, want [1-128]", cfg.Count)62	}63	if env.Debug && cfg.Count > 1 {64		log.Logf(0, "limiting number of VMs from %v to 1 in debug mode", cfg.Count)65		cfg.Count = 166	}67	pool := &Pool{68		cfg: cfg,69		env: env,70	}71	return pool, nil72}73func (pool *Pool) Count() int {74	return pool.cfg.Count75}76func (pool *Pool) Create(workdir string, index int) (vmimpl.Instance, error) {77	inst := &instance{78		cfg:     pool.cfg,79		debug:   pool.env.Debug,80		os:      pool.env.OS,81		sshkey:  pool.env.SSHKey,82		sshuser: pool.env.SSHUser,83		vmName:  fmt.Sprintf("syzkaller-%v-%v", pool.env.Name, index),84	}85	dataset := inst.cfg.Dataset86	mountpoint, err := osutil.RunCmd(time.Minute, "", "zfs", "get", "-H", "-o", "value", "mountpoint", dataset)87	if err != nil {88		return nil, err89	}90	snapshot := fmt.Sprintf("%v@bhyve-%v", dataset, inst.vmName)91	clone := fmt.Sprintf("%v/bhyve-%v", dataset, inst.vmName)92	prefix := strings.TrimSuffix(string(mountpoint), "\n") + "/"93	image := strings.TrimPrefix(pool.env.Image, prefix)94	if image == pool.env.Image {95		return nil, fmt.Errorf("image file %v not contained in dataset %v", image, prefix)96	}97	inst.image = prefix + fmt.Sprintf("bhyve-%v", inst.vmName) + "/" + image98	// Stop the instance from a previous run in case it's still running.99	osutil.RunCmd(time.Minute, "", "bhyvectl", "--destroy", fmt.Sprintf("--vm=%v", inst.vmName))100	// Destroy a lingering snapshot and clone.101	osutil.RunCmd(time.Minute, "", "zfs", "destroy", "-R", snapshot)102	// Create a snapshot of the data set containing the VM image.103	// bhyve will use a clone of the snapshot, which gets recreated every time the VM104	// is restarted. This is all to work around bhyve's current lack of an105	// image snapshot facility.106	if _, err := osutil.RunCmd(time.Minute, "", "zfs", "snapshot", snapshot); err != nil {107		inst.Close()108		return nil, err109	}110	inst.snapshot = snapshot111	if _, err := osutil.RunCmd(time.Minute, "", "zfs", "clone", snapshot, clone); err != nil {112		inst.Close()113		return nil, err114	}115	tapdev, err := osutil.RunCmd(time.Minute, "", "ifconfig", "tap", "create")116	if err != nil {117		inst.Close()118		return nil, err119	}120	inst.tapdev = tapRegex.FindString(string(tapdev))121	if _, err := osutil.RunCmd(time.Minute, "", "ifconfig", inst.cfg.Bridge, "addm", inst.tapdev); err != nil {122		inst.Close()123		return nil, err124	}125	if err := inst.Boot(); err != nil {126		inst.Close()127		return nil, err128	}129	return inst, nil130}131func (inst *instance) Boot() error {132	loaderArgs := []string{133		"-c", "stdio",134		"-m", inst.cfg.Mem,135		"-d", inst.image,136		"-e", "autoboot_delay=0",137		inst.vmName,138	}139	// Stop the instance from the previous run in case it's still running.140	osutil.RunCmd(time.Minute, "", "bhyvectl", "--destroy", fmt.Sprintf("--vm=%v", inst.vmName))141	_, err := osutil.RunCmd(time.Minute, "", "bhyveload", loaderArgs...)142	if err != nil {143		return err144	}145	bhyveArgs := []string{146		"-H", "-A", "-P",147		"-c", fmt.Sprintf("%d", inst.cfg.CPU),148		"-m", inst.cfg.Mem,149		"-s", "0:0,hostbridge",150		"-s", "1:0,lpc",151		"-s", fmt.Sprintf("2:0,virtio-net,%v", inst.tapdev),152		"-s", fmt.Sprintf("3:0,virtio-blk,%v", inst.image),153		"-l", "com1,stdio",154		inst.vmName,155	}156	outr, outw, err := osutil.LongPipe()157	if err != nil {158		return err159	}160	inr, inw, err := osutil.LongPipe()161	if err != nil {162		outr.Close()163		outw.Close()164		return err165	}166	bhyve := osutil.Command("bhyve", bhyveArgs...)167	bhyve.Stdin = inr168	bhyve.Stdout = outw169	bhyve.Stderr = outw170	if err := bhyve.Start(); err != nil {171		outr.Close()172		outw.Close()173		inr.Close()174		inw.Close()175		return err176	}177	outw.Close()178	outw = nil179	inst.consolew = inw180	inr.Close()181	inst.bhyve = bhyve182	var tee io.Writer183	if inst.debug {184		tee = os.Stdout185	}186	inst.merger = vmimpl.NewOutputMerger(tee)187	inst.merger.Add("console", outr)188	outr = nil189	var bootOutput []byte190	bootOutputStop := make(chan bool)191	ipch := make(chan string, 1)192	go func() {193		gotip := false194		for {195			select {196			case out := <-inst.merger.Output:197				bootOutput = append(bootOutput, out...)198			case <-bootOutputStop:199				close(bootOutputStop)200				return201			}202			if gotip {203				continue204			}205			if ip := parseIP(bootOutput); ip != "" {206				ipch <- ip207				gotip = true208			}209		}210	}()211	select {212	case ip := <-ipch:213		inst.sshhost = ip214	case <-inst.merger.Err:215		bootOutputStop <- true216		<-bootOutputStop217		return vmimpl.BootError{Title: "bhyve exited", Output: bootOutput}218	case <-time.After(10 * time.Minute):219		bootOutputStop <- true220		<-bootOutputStop221		return vmimpl.BootError{Title: "no IP found", Output: bootOutput}222	}223	if err := vmimpl.WaitForSSH(inst.debug, 10*time.Minute, inst.sshhost,224		inst.sshkey, inst.sshuser, inst.os, 22, nil); err != nil {225		bootOutputStop <- true226		<-bootOutputStop227		return vmimpl.MakeBootError(err, bootOutput)228	}229	bootOutputStop <- true230	return nil231}232func (inst *instance) Close() {233	if inst.consolew != nil {234		inst.consolew.Close()235	}236	if inst.bhyve != nil {237		inst.bhyve.Process.Kill()238		inst.bhyve.Wait()239		osutil.RunCmd(time.Minute, "", "bhyvectl", fmt.Sprintf("--vm=%v", inst.vmName), "--destroy")240		inst.bhyve = nil241	}242	if inst.snapshot != "" {243		osutil.RunCmd(time.Minute, "", "zfs", "destroy", "-R", inst.snapshot)244		inst.snapshot = ""245	}246	if inst.tapdev != "" {247		osutil.RunCmd(time.Minute, "", "ifconfig", inst.tapdev, "destroy")248		inst.tapdev = ""249	}250}251func (inst *instance) Forward(port int) (string, error) {252	return fmt.Sprintf("%v:%v", inst.cfg.HostIP, port), nil253}254func (inst *instance) Copy(hostSrc string) (string, error) {255	vmDst := filepath.Join("/root", filepath.Base(hostSrc))256	args := append(vmimpl.SCPArgs(inst.debug, inst.sshkey, 22),257		hostSrc, inst.sshuser+"@"+inst.sshhost+":"+vmDst)258	if inst.debug {259		log.Logf(0, "running command: scp %#v", args)260	}261	_, err := osutil.RunCmd(10*time.Minute, "", "scp", args...)262	if err != nil {263		return "", err264	}265	return vmDst, nil266}267func (inst *instance) Run(timeout time.Duration, stop <-chan bool, command string) (268	<-chan []byte, <-chan error, error) {269	rpipe, wpipe, err := osutil.LongPipe()270	if err != nil {271		return nil, nil, err272	}273	inst.merger.Add("ssh", rpipe)274	args := append(vmimpl.SSHArgs(inst.debug, inst.sshkey, 22),275		inst.sshuser+"@"+inst.sshhost, command)276	if inst.debug {277		log.Logf(0, "running command: ssh %#v", args)278	}279	cmd := osutil.Command("ssh", args...)280	cmd.Stdout = wpipe281	cmd.Stderr = wpipe282	if err := cmd.Start(); err != nil {283		wpipe.Close()284		return nil, nil, err285	}286	wpipe.Close()287	errc := make(chan error, 1)288	signal := func(err error) {289		select {290		case errc <- err:291		default:292		}293	}294	go func() {295		select {296		case <-time.After(timeout):297			signal(vmimpl.ErrTimeout)298		case <-stop:299			signal(vmimpl.ErrTimeout)300		case err := <-inst.merger.Err:...

Using AI Code Generation

1import (2func main() {3	bhyve, err := lochness.NewBhyve()4	if err != nil {5		fmt.Println(err)6	}7	defer bhyve.Close()8}9import (10func main() {11	bhyve, err := lochness.NewBhyve()12	if err != nil {13		fmt.Println(err)14	}15	defer bhyve.Close()16}17import (18func main() {19	bhyve, err := lochness.NewBhyve()20	if err != nil {21		fmt.Println(err)22	}23	defer bhyve.Close()24}25import (26func main() {27	bhyve, err := lochness.NewBhyve()28	if err != nil {29		fmt.Println(err)30	}31	defer bhyve.Close()32}33import (34func main() {35	bhyve, err := lochness.NewBhyve()36	if err != nil {37		fmt.Println(err)38	}39	defer bhyve.Close()40}41import (42func main() {43	bhyve, err := lochness.NewBhyve()44	if err != nil {45		fmt.Println(err)46	}47	defer bhyve.Close()48}49import (50func main() {

Using AI Code Generation

1import (2func main() {3    bhyve := bhyve.NewBhyve()4    bhyve.Close()5}6import (7func main() {8    bhyve := bhyve.NewBhyve()9    fmt.Println(bhyve.List())10}11import (12func main() {13    bhyve := bhyve.NewBhyve()14    bhyve.Create("vm1")15}16import (17func main() {18    bhyve := bhyve.NewBhyve()19    bhyve.Delete("vm1")20}21import (22func main() {23    bhyve := bhyve.NewBhyve()24    bhyve.Start("vm1")25}26import (27func main() {28    bhyve := bhyve.NewBhyve()

Using AI Code Generation

1func main() {2        bhyve := bhyve.NewBhyve()3        bhyve.Close()4}5func main() {6        bhyve := bhyve.NewBhyve()7        bhyve.Close()8        bhyve.Close()9}10func main() {11        bhyve := bhyve.NewBhyve()12        bhyve.Close()13        bhyve.Close()14        bhyve.Close()15}16func main() {17        bhyve := bhyve.NewBhyve()18        bhyve.Close()19        bhyve.Close()20        bhyve.Close()21        bhyve.Close()22}23func main() {24        bhyve := bhyve.NewBhyve()25        bhyve.Close()26        bhyve.Close()27        bhyve.Close()28        bhyve.Close()29        bhyve.Close()30}31func main() {32        bhyve := bhyve.NewBhyve()33        bhyve.Close()34        bhyve.Close()35        bhyve.Close()36        bhyve.Close()37        bhyve.Close()38        bhyve.Close()39}40func main() {41        bhyve := bhyve.NewBhyve()42        bhyve.Close()

Using AI Code Generation

1import (2func main() {3	bhyve := bhyve.New()4	err := bhyve.Close("vm1")5	if err != nil {6		fmt.Println(err)7	}8}9import (10func main() {11	bhyve := bhyve.New()12	err := bhyve.Create("vm1", 1024, 1, "bridge0", "tap0", "boot.iso", "disk1.img")13	if err != nil {14		fmt.Println(err)15	}16}17import (18func main() {19	bhyve := bhyve.New()20	err := bhyve.Destroy("vm1")21	if err != nil {22		fmt.Println(err)23	}24}25import (26func main() {27	bhyve := bhyve.New()28	vms, err := bhyve.List()29	if err != nil {30		fmt.Println(err)31	}32	for _, vm := range vms {33		fmt.Println(vm)34	}35}36import (37func main() {38	bhyve := bhyve.New()39	err := bhyve.Start("vm1")40	if err != nil {41		fmt.Println(err)42	}43}44import (

Using AI Code Generation

1import (2func main() {3	bhyve := bhyve.NewBhyve("vm1")4	bhyve.Close()5	fmt.Println("vm1 closed")6}7import (8func main() {9	bhyve := bhyve.NewBhyve("vm1")10	bhyve.Kill()11	fmt.Println("vm1 killed")12}13import (14func main() {15	bhyve := bhyve.NewBhyve("vm1")16	bhyve.Delete()17	fmt.Println("vm1 deleted")18}19import (20func main() {21	bhyve := bhyve.NewBhyve("vm1")22	bhyve.PowerOff()23	fmt.Println("vm1 powered off")24}25import (26func main() {27	bhyve := bhyve.NewBhyve("vm1")28	bhyve.PowerOn()29	fmt.Println("vm1 powered on")30}31import (32func main() {33	bhyve := bhyve.NewBhyve("vm1")34	bhyve.Reboot()35	fmt.Println("vm1 rebooted")36}37import (38func main() {39	bhyve := bhyve.NewBhyve("vm1")

Using AI Code Generation

1func main() {2    bhyve := bhyve.New()3    bhyve.Close()4}5func main() {6    bhyve := bhyve.New()7    bhyve.Create()8}9func main() {10    bhyve := bhyve.New()11    bhyve.Delete()12}13func main() {14    bhyve := bhyve.New()15    bhyve.Destroy()16}17func main() {18    bhyve := bhyve.New()19    bhyve.Info()20}21func main() {22    bhyve := bhyve.New()23    bhyve.List()24}25func main() {26    bhyve := bhyve.New()27    bhyve.Load()28}29func main() {30    bhyve := bhyve.New()31    bhyve.Pause()32}

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