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How to use ctor method of qemu Package

Best Syzkaller code snippet using qemu.ctor

qemu.go

Source:qemu.go

...20const (21	hostAddr = "10.0.2.10"22)23func init() {24	vmimpl.Register("qemu", ctor)25}26type Config struct {27	Count     int    // number of VMs to use28	Qemu      string // qemu binary name (qemu-system-arch by default)29	Qemu_Args string // additional command line arguments for qemu binary30	Kernel    string // kernel for injected boot (e.g. arch/x86/boot/bzImage)31	Cmdline   string // kernel command line (can only be specified with kernel)32	Initrd    string // linux initial ramdisk. (optional)33	Cpu       int    // number of VM CPUs34	Mem       int    // amount of VM memory in MBs35}36type Pool struct {37	env *vmimpl.Env38	cfg *Config39}40type instance struct {41	cfg     *Config42	image   string43	debug   bool44	workdir string45	sshkey  string46	sshuser string47	port    int48	rpipe   io.ReadCloser49	wpipe   io.WriteCloser50	qemu    *exec.Cmd51	waiterC chan error52	merger  *vmimpl.OutputMerger53}54type archConfig struct {55	Qemu     string56	QemuArgs string57}58var archConfigs = map[string]archConfig{59	"linux/amd64": {60		Qemu:     "qemu-system-x86_64",61		QemuArgs: "-enable-kvm -usb -usbdevice mouse -usbdevice tablet -soundhw all",62	},63	"linux/386": {64		Qemu: "qemu-system-i386",65	},66	"linux/arm64": {67		Qemu:     "qemu-system-aarch64",68		QemuArgs: "-machine virt -cpu cortex-a57",69	},70	"linux/arm": {71		Qemu: "qemu-system-arm",72	},73	"linux/ppc64le": {74		Qemu: "qemu-system-ppc64",75	},76	"fuchsia/amd64": {77		Qemu:     "qemu-system-x86_64",78		QemuArgs: "-enable-kvm",79	},80}81func ctor(env *vmimpl.Env) (vmimpl.Pool, error) {82	archConfig := archConfigs[env.OS+"/"+env.Arch]83	cfg := &Config{84		Count:     1,85		Qemu:      archConfig.Qemu,86		Qemu_Args: archConfig.QemuArgs,87	}88	if err := config.LoadData(env.Config, cfg); err != nil {89		return nil, fmt.Errorf("failed to parse qemu vm config: %v", err)90	}91	if cfg.Count < 1 || cfg.Count > 1000 {92		return nil, fmt.Errorf("invalid config param count: %v, want [1, 1000]", cfg.Count)93	}94	if env.Debug {95		cfg.Count = 196	}97	if _, err := exec.LookPath(cfg.Qemu); err != nil {98		return nil, err99	}100	if env.Image == "9p" {101		if env.OS != "linux" {102			return nil, fmt.Errorf("9p image is supported for linux only")103		}104		if cfg.Kernel == "" {105			return nil, fmt.Errorf("9p image requires kernel")106		}107	} else {108		if !osutil.IsExist(env.Image) {109			return nil, fmt.Errorf("image file '%v' does not exist", env.Image)110		}111		if !osutil.IsExist(env.SshKey) {112			return nil, fmt.Errorf("ssh key '%v' does not exist", env.SshKey)113		}114	}115	if cfg.Cpu <= 0 || cfg.Cpu > 1024 {116		return nil, fmt.Errorf("bad qemu cpu: %v, want [1-1024]", cfg.Cpu)117	}118	if cfg.Mem < 128 || cfg.Mem > 1048576 {119		return nil, fmt.Errorf("bad qemu mem: %v, want [128-1048576]", cfg.Mem)120	}121	cfg.Kernel = osutil.Abs(cfg.Kernel)122	cfg.Initrd = osutil.Abs(cfg.Initrd)123	pool := &Pool{124		cfg: cfg,125		env: env,126	}127	return pool, nil128}129func (pool *Pool) Count() int {130	return pool.cfg.Count131}132func (pool *Pool) Create(workdir string, index int) (vmimpl.Instance, error) {133	sshkey := pool.env.SshKey134	sshuser := pool.env.SshUser135	if pool.env.Image == "9p" {136		sshkey = filepath.Join(workdir, "key")137		sshuser = "root"138		keygen := exec.Command("ssh-keygen", "-t", "rsa", "-b", "2048", "-N", "", "-C", "", "-f", sshkey)139		if out, err := keygen.CombinedOutput(); err != nil {140			return nil, fmt.Errorf("failed to execute ssh-keygen: %v\n%s", err, out)141		}142		initFile := filepath.Join(workdir, "init.sh")143		if err := osutil.WriteExecFile(initFile, []byte(strings.Replace(initScript, "{{KEY}}", sshkey, -1))); err != nil {144			return nil, fmt.Errorf("failed to create init file: %v", err)145		}146	}147	for i := 0; ; i++ {148		inst, err := pool.ctor(workdir, sshkey, sshuser, index)149		if err == nil {150			return inst, nil151		}152		if i < 1000 && strings.Contains(err.Error(), "could not set up host forwarding rule") {153			continue154		}155		return nil, err156	}157}158func (pool *Pool) ctor(workdir, sshkey, sshuser string, index int) (vmimpl.Instance, error) {159	inst := &instance{160		cfg:     pool.cfg,161		image:   pool.env.Image,162		debug:   pool.env.Debug,163		workdir: workdir,164		sshkey:  sshkey,165		sshuser: sshuser,166	}167	closeInst := inst168	defer func() {169		if closeInst != nil {170			closeInst.Close()171		}172	}()...

ctor

Using AI Code Generation

1import (2func main() {3    notificator := notificator.New(notificator.Options{4    })5    notificator.Push("Title", "Message body", "/home/my_photo.png", notificator.UR_CRITICAL)6    fmt.Println("Hello, playground")7}8import (9func main() {10    notificator := notificator.New(notificator.Options{11    })12    notificator.Push("Title", "Message body", "/home/my_photo.png", notificator.UR_CRITICAL)13    fmt.Println("Hello, playground")14}15import (16func main() {17    notificator := notificator.New(notificator.Options{18    })19    notificator.Push("Title", "Message body", "/home/my_photo.png", notificator.UR_CRITICAL)20    fmt.Println("Hello, playground")21}22import (23func main() {24    notificator := notificator.New(notificator.Options{25    })26    notificator.Push("Title", "Message body", "/home/my_photo.png", notificator.UR_CRITICAL)27    fmt.Println("Hello, playground")28}29import (30func main() {31    notificator := notificator.New(notificator.Options{

ctor

Using AI Code Generation

1import (2func main() {3	conn, err := qmp.NewSocketConnection("/tmp/qmp-sock")4	if err != nil {5		panic(err)6	}7	if err := conn.Connect(); err != nil {8		panic(err)9	}10	response, err := conn.ExecuteQMPCapabilities()11	if err != nil {12		panic(err)13	}14	fmt.Println(response.Return)15	if err := conn.Disconnect(); err != nil {16		panic(err)17	}18}19import (20func main() {21	conn, err := qmp.NewSocketConnection("/tmp/qmp-sock")22	if err != nil {23		panic(err)24	}25	if err := conn.Connect(); err != nil {26		panic(err)27	}28	response, err := conn.ExecuteQMPCapabilities()29	if err != nil {30		panic(err)31	}32	fmt.Println(response.Return)33	response, err = conn.ExecuteHumanMonitorCommand("info cpus")34	if err != nil {35		panic(err)36	}37	fmt.Println(response.Return)38	if err := conn.Disconnect(); err != nil {39		panic(err)40	}41}42import (43func main() {44	conn, err := qmp.NewSocketConnection("/tmp/qmp-sock")45	if err != nil {46		panic(err)47	}48	if err := conn.Connect(); err != nil {49		panic(err)50	}

ctor

Using AI Code Generation

1import (2func main() {3	qemu := NewQemu()4	fmt.Println(qemu)5}6import (7func main() {8	qemu := NewQemu()9	fmt.Println(qemu)10}11import (12func main() {13	qemu := NewQemu()14	fmt.Println(qemu)15}16import (17func main() {18	qemu := NewQemu()19	fmt.Println(qemu)20}21import (22func main() {23	qemu := NewQemu()24	fmt.Println(qemu)25}26import (27func main() {28	qemu := NewQemu()29	fmt.Println(qemu)30}31import (32func main() {33	qemu := NewQemu()34	fmt.Println(qemu)35}36import (37func main() {38	qemu := NewQemu()39	fmt.Println(qemu)40}41import (42func main() {43	qemu := NewQemu()44	fmt.Println(qemu)45}46import (47func main() {48	qemu := NewQemu()49	fmt.Println(qemu)50}51import (52func main() {53	qemu := NewQemu()54	fmt.Println(qemu)55}56import (57func main() {58	qemu := NewQemu()59	fmt.Println(qemu)

ctor

Using AI Code Generation

1import (2func main() {3    fmt.Println("In main")4    q := qemu.NewQemu()5    q.Start()6}7import (8type Qemu struct {9}10func NewQemu() *Qemu {11    return &Qemu{Name: "qemu"}12}13func (q *Qemu) Start() {14    fmt.Println("Starting qemu")15}16import (17func TestQemu(t *testing.T) {18    q := NewQemu()19    if q.Name != "qemu" {20        t.Fatalf("qemu.Name not set properly")21    }22}

ctor

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    q := qemu.NewQemu()5    q.Start()6    q.Stop()7}8import (9type Qemu struct {10}11func NewQemu() *Qemu {12    return &Qemu{Name: "Qemu"}13}14func (q *Qemu) Start() {15    fmt.Println("Starting Qemu")16}17func (q *Qemu) Stop() {18    fmt.Println("Stopping Qemu")19}

ctor

Using AI Code Generation

1import (2func main() {3	q := qemu.NewQemu("qemu-img", "create", "-f", "qcow2", "test.img", "10G")4	q.Run()5	fmt.Println("done")6}7import (8type Qemu struct {9}10func NewQemu(args ...string) *Qemu {11	return &Qemu{exec.Command(args[0], args[1:]...)}12}13func (q *Qemu) Run() error {14	return q.cmd.Run()15}

ctor

Using AI Code Generation

1import (2func main() {3	var (4		qemuPath = flag.String("qemu", "qemu-system-i386", "path to the qemu executable")5	flag.Parse()6	q, err := qemu.New(*qemuPath)7	if err != nil {8		panic(err)9	}10	machine, err := q.NewMachine()11	if err != nil {12		panic(err)13	}14	hda, err := machine.NewDrive("hda", "disk.img")15	if err != nil {16		panic(err)17	}18	fda, err := machine.NewDrive("fda", "floppy.img")19	if err != nil {20		panic(err)21	}22	cdrom, err := machine.NewDrive("cdrom", "cdrom.iso")23	if err != nil {24		panic(err)25	}26	_, err = machine.NewNIC("e1000")27	if err != nil {28		panic(err)29	}30	_, err = machine.NewSerialPort("stdio")31	if err != nil {32		panic(err)33	}34	err = machine.Start()35	if err != nil {36		panic(err)37	}38	exitStatus, err := machine.Wait()39	if err != nil {40		panic(err)41	}42	err = machine.Close()43	if err != nil {44		panic(err)45	}46	fmt.Printf("exited with status %d47}

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