How to use runInstanceInner method of main Package

Best Syzkaller code snippet using main.runInstanceInner

manager.go

Source:manager.go

...365				idx := instances[last]366				instances = instances[:last]367				log.Logf(1, "loop: starting instance %v", idx)368				go func() {369					//è°ç¨mgr.runInstanceInnerï¼370					//mgr.runInstanceInner()è°ç¨äºFuzzerCmd()å¯å¨fuzz;371					//åè°ç¨MonitorExecution()çæ§ä¿¡æ¯å¹¶è¿åReportå¯¹è±¡372					//è¿åcrashä¿¡æ¯373					crash, err := mgr.runInstance(idx)374					//ç»æå¤ç375					runDone <- &RunResult{idx, crash, err}376				}()377			}378		}379		var stopRequest chan bool380		if !stopPending && canRepro() {381			stopRequest = mgr.vmStop382		}383	wait:384		select {385		case idx := <-bootInstance:386			instances = append(instances, idx)387		case stopRequest <- true:388			log.Logf(1, "loop: issued stop request")389			stopPending = true390		case res := <-runDone:391			log.Logf(1, "loop: instance %v finished, crash=%v", res.idx, res.crash != nil)392			if res.err != nil && shutdown != nil {393				log.Logf(0, "%v", res.err)394			}395			stopPending = false396			instances = append(instances, res.idx)397			// On shutdown qemu crashes with "qemu: terminating on signal 2",398			// which we detect as "lost connection". Don't save that as crash.399			if shutdown != nil && res.crash != nil {400				needRepro := mgr.saveCrash(res.crash)401				if needRepro {402					log.Logf(1, "loop: add pending repro for '%v'", res.crash.Title)403					pendingRepro[res.crash] = true404				}405			}406		case res := <-reproDone:407			atomic.AddUint32(&mgr.numReproducing, ^uint32(0))408			crepro := false409			title := ""410			if res.res != nil {411				crepro = res.res.CRepro412				title = res.res.Report.Title413			}414			log.Logf(1, "loop: repro on %+v finished '%v', repro=%v crepro=%v desc='%v'",415				res.instances, res.report0.Title, res.res != nil, crepro, title)416			if res.err != nil {417				log.Logf(0, "repro failed: %v", res.err)418			}419			delete(reproducing, res.report0.Title)420			instances = append(instances, res.instances...)421			reproInstances -= instancesPerRepro422			if res.res == nil {423				if !res.hub {424					mgr.saveFailedRepro(res.report0, res.stats)425				}426			} else {427				mgr.saveRepro(res.res, res.stats, res.hub)428			}429		case <-shutdown:430			log.Logf(1, "loop: shutting down...")431			shutdown = nil432		case crash := <-mgr.hubReproQueue:433			log.Logf(1, "loop: get repro from hub")434			pendingRepro[crash] = true435		case reply := <-mgr.needMoreRepros:436			reply <- phase >= phaseTriagedHub &&437				len(reproQueue)+len(pendingRepro)+len(reproducing) == 0438			goto wait439		case reply := <-mgr.reproRequest:440			repros := make(map[string]bool)441			for title := range reproducing {442				repros[title] = true443			}444			reply <- repros445			goto wait446		}447	}448}449func (mgr *Manager) preloadCorpus() {450	log.Logf(0, "loading corpus...")451	corpusDB, err := db.Open(filepath.Join(mgr.cfg.Workdir, "corpus.db"))452	if err != nil {453		log.Fatalf("failed to open corpus database: %v", err)454	}455	mgr.corpusDB = corpusDB456	if seedDir := filepath.Join(mgr.cfg.Syzkaller, "sys", mgr.cfg.TargetOS, "test"); osutil.IsExist(seedDir) {457		seeds, err := ioutil.ReadDir(seedDir)458		if err != nil {459			log.Fatalf("failed to read seeds dir: %v", err)460		}461		for _, seed := range seeds {462			data, err := ioutil.ReadFile(filepath.Join(seedDir, seed.Name()))463			if err != nil {464				log.Fatalf("failed to read seed %v: %v", seed.Name(), err)465			}466			mgr.seeds = append(mgr.seeds, data)467		}468	}469}470func (mgr *Manager) loadCorpus() {471	// By default we don't re-minimize/re-smash programs from corpus,472	// it takes lots of time on start and is unnecessary.473	// However, on version bumps we can selectively re-minimize/re-smash.474	minimized, smashed := true, true475	switch mgr.corpusDB.Version {476	case 0:477		// Version 0 had broken minimization, so we need to re-minimize.478		minimized = false479		fallthrough480	case 1:481		// Version 1->2: memory is preallocated so lots of mmaps become unnecessary.482		minimized = false483		fallthrough484	case 2:485		// Version 2->3: big-endian hints.486		smashed = false487		fallthrough488	case 3:489		// Version 3->4: to shake things up.490		minimized = false491		fallthrough492	case currentDBVersion:493	}494	broken := 0495	for key, rec := range mgr.corpusDB.Records {496		if !mgr.loadProg(rec.Val, minimized, smashed) {497			mgr.corpusDB.Delete(key)498			broken++499		}500	}501	mgr.fresh = len(mgr.corpusDB.Records) == 0502	corpusSize := len(mgr.candidates)503	log.Logf(0, "%-24v: %v (deleted %v broken)", "corpus", corpusSize, broken)504	for _, seed := range mgr.seeds {505		mgr.loadProg(seed, true, false)506	}507	log.Logf(0, "%-24v: %v/%v", "seeds", len(mgr.candidates)-corpusSize, len(mgr.seeds))508	mgr.seeds = nil509	// We duplicate all inputs in the corpus and shuffle the second part.510	// This solves the following problem. A fuzzer can crash while triaging candidates,511	// in such case it will also lost all cached candidates. Or, the input can be somewhat flaky512	// and doesn't give the coverage on first try. So we give each input the second chance.513	// Shuffling should alleviate deterministically losing the same inputs on fuzzer crashing.514	mgr.candidates = append(mgr.candidates, mgr.candidates...)515	shuffle := mgr.candidates[len(mgr.candidates)/2:]516	rand.Shuffle(len(shuffle), func(i, j int) {517		shuffle[i], shuffle[j] = shuffle[j], shuffle[i]518	})519	if mgr.phase != phaseInit {520		panic(fmt.Sprintf("loadCorpus: bad phase %v", mgr.phase))521	}522	mgr.phase = phaseLoadedCorpus523}524func (mgr *Manager) loadProg(data []byte, minimized, smashed bool) bool {525	bad, disabled := checkProgram(mgr.target, mgr.targetEnabledSyscalls, data)526	if bad {527		return false528	}529	if disabled {530		// This program contains a disabled syscall.531		// We won't execute it, but remember its hash so532		// it is not deleted during minimization.533		// è¿ä¸ªç¨åºåå«äºdisabledç³»ç»è°ç¨ï¼æä»¬ä¸ä¼æ§è¡å®ï¼ä½æ¯è®°ä½å®çåå¸å¼ä¿è¯æå°åè¿ç¨ä¸ä¸ä¼å é¤å®ã534		mgr.disabledHashes[hash.String(data)] = struct{}{}535		return true536	}537	mgr.candidates = append(mgr.candidates, rpctype.RPCCandidate{538		Prog:      data,539		Minimized: minimized,540		Smashed:   smashed,541	})542	return true543}544func checkProgram(target *prog.Target, enabled map[*prog.Syscall]bool, data []byte) (bad, disabled bool) {545	p, err := target.Deserialize(data, prog.NonStrict)546	if err != nil {547		return true, true548	}549	if len(p.Calls) > prog.MaxCalls {550		return true, true551	}552	for _, c := range p.Calls {553		if !enabled[c.Meta] {554			return false, true555		}556	}557	return false, false558}559//è®²syz-fuzzeråsyz-executorå¤å¶å°VMä¸,è°ç¨FuzzerCmdå½æ°éè¿sshæ§è¡syz-fuzzerã560func (mgr *Manager) runInstance(index int) (*Crash, error) {561	mgr.checkUsedFiles()562	instanceName := fmt.Sprintf("vm-%d", index)563	// è¿è¡èææº564	rep, vmInfo, err := mgr.runInstanceInner(index, instanceName)565	//å³éèææº566	machineInfo := mgr.serv.shutdownInstance(instanceName)567	if len(vmInfo) != 0 {568		machineInfo = append(append(vmInfo, '\n'), machineInfo...)569	}570	// Error that is not a VM crash.571	if err != nil {572		return nil, err573	}574	// No crash.575	if rep == nil {576		return nil, nil577	}578	crash := &Crash{579		vmIndex:     index,580		hub:         false,581		Report:      rep,582		machineInfo: machineInfo,583	}584	return crash, nil585}586func (mgr *Manager) runInstanceInner(index int, instanceName string) (*report.Report, []byte, error) {587	// åå»º588	inst, err := mgr.vmPool.Create(index)589	if err != nil {590		return nil, nil, fmt.Errorf("failed to create instance: %v", err)591	}592	defer inst.Close()593	// forward594	fwdAddr, err := inst.Forward(mgr.serv.port)595	if err != nil {596		return nil, nil, fmt.Errorf("failed to setup port forwarding: %v", err)597	}598	// å¤å¶fuzzeräºè¿å¶æä»¶599	fuzzerBin, err := inst.Copy(mgr.cfg.FuzzerBin)600	if err != nil {...

runInstanceInner

Using AI Code Generation

1import (2func main() {3	svc := ec2.New(session.New(), &aws.Config{Region: aws.String("us-west-2")})4	resp, err := svc.DescribeInstances(nil)5	if err != nil {6		fmt.Println("Error", err)7	} else {8		fmt.Println("Success", resp)9	}10}11import (12func main() {13	svc := ec2.New(session.New(), &aws.Config{Region: aws.String("us-west-2")})14	resp, err := svc.DescribeInstances(nil)15	if err != nil {16		fmt.Println("Error", err)17	} else {18		fmt.Println("Success", resp)19	}20}21import (22func main() {23	svc := ec2.New(session.New(), &aws.Config{Region: aws.String("us-west-2")})

runInstanceInner

Using AI Code Generation

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

runInstanceInner

Using AI Code Generation

1import (2func main() {3}4func runInstanceInner() {5	ctx := context.Background()6	vmConfigSpec := types.VirtualMachineConfigSpec{7		Files: &types.VirtualMachineFileInfo{8			VmPathName: fmt.Sprintf("[%s]", datastore.Name()),9		},10		DeviceChange: []types.BaseVirtualDeviceConfigSpec{11			&types.VirtualDeviceConfigSpec{12				Device: &types.ParaVirtualSCSIController{13					VirtualSCSIController: types.VirtualSCSIController{14						VirtualController: types.VirtualController{15							VirtualDevice: types.VirtualDevice{16							},17						},18					},19				},20			},21		},22	}23	hostConfigSpec := types.VirtualMachineRelocateSpec{24		Host: host.Reference(),25		Pool: resourcePool.Reference(),26	}

runInstanceInner

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, playground")4    runInstanceInner()5}6import "fmt"7func main() {8    fmt.Println("Hello, playground")9    runInstance()10}11import "fmt"12func main() {13    fmt.Println("Hello, playground")14    run()15}

runInstanceInner

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, playground")4    runInstanceInner()5}6import "fmt"7func main() {8    fmt.Println("Hello, playground")9    runInstance()10}11import "fmt"12func main() {13    fmt.Println("Hello, playground")14    runInstance()15}16Your name to display (optional):17Your name to display (optional):18Your name to display (optional):19Your name to display (optional):20Your name to display (optional):21Your name to display (optional):22Your name to display (optional):23Your name to display (optional):

runInstanceInner

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello World!")4    runInstanceInner()5}6import (7func main() {8    fmt.Println("Hello World!")9    runInstance()10}11import (12func main() {13    fmt.Println("Hello World!")14    runInstance()15}16import (17func main() {18    fmt.Println("Hello World!")19    RunInstanceInner()20}

runInstanceInner

Using AI Code Generation

1import (2func main() {3    var m = &main{}4    var method = reflect.ValueOf(m).MethodByName("runInstanceInner")5    var args = []reflect.Value{6        reflect.ValueOf("Hello, World!"),7    }8    method.Call(args)9}10import (11func main() {12    var m = &main{}13    var method = reflect.ValueOf(m).MethodByName("runInstanceInner")14    var args = []reflect.Value{15        reflect.ValueOf("Hello, World!"),16    }17    method.Call(args)18}19import (20func main() {21    var m = &main{}22    var method = reflect.ValueOf(m).MethodByName("runInstanceInner")23    var args = []reflect.Value{24        reflect.ValueOf("Hello, World!"),25    }26    method.Call(args)27}28import (29func main() {30    var m = &main{}31    var method = reflect.ValueOf(m).MethodByName("runInstanceInner")32    var args = []reflect.Value{33        reflect.ValueOf("Hello, World!"),34    }35    method.Call(args)36}37import (38func main() {39    var m = &main{}40    var method = reflect.ValueOf(m).MethodByName("runInstanceInner")41    var args = []reflect.Value{42        reflect.ValueOf("Hello, World!"),43    }44    method.Call(args)45}46import (47func main() {48    var m = &main{}49    var method = reflect.ValueOf(m).MethodByName("runInstanceInner")

runInstanceInner

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World")4	for i < 10 {5		go runInstanceInner()6	}7	time.Sleep(10 * time.Second)8}9func runInstanceInner() {10	fmt.Println("Hello World Inner")11}

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