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How to use Diagnose method of proxyapp Package

Best Syzkaller code snippet using proxyapp.Diagnose

proxyappclient_test.go

Source:proxyappclient_test.go

...238		On("Close", mock.Anything, mock.Anything).239		Return(fmt.Errorf("mock error"))240	inst.Close()241}242func TestInstance_Diagnose_Ok(t *testing.T) {243	mockInstance, inst := createInstanceFixture(t)244	mockInstance.245		On("Diagnose", mock.Anything, mock.Anything).246		Run(func(args mock.Arguments) {247			out := args.Get(1).(*proxyrpc.DiagnoseReply)248			out.Diagnosis = "diagnostic result"249		}).250		Return(nil)251	diagnosis, wait := inst.Diagnose(nil)252	assert.NotNil(t, diagnosis)253	assert.Equal(t, wait, false)254	diagnosis, wait = inst.Diagnose(&report.Report{})255	assert.NotNil(t, diagnosis)256	assert.Equal(t, wait, false)257}258func TestInstance_Diagnose_Failure(t *testing.T) {259	mockInstance, inst := createInstanceFixture(t)260	mockInstance.261		On("Diagnose", mock.Anything, mock.Anything).262		Return(fmt.Errorf("diagnose failed"))263	diagnosis, wait := inst.Diagnose(&report.Report{})264	assert.Nil(t, diagnosis)265	assert.Equal(t, wait, false)266}267func TestInstance_Copy_OK(t *testing.T) {268	mockInstance, inst := createInstanceFixture(t)269	mockInstance.270		On("Copy", mock.Anything, mock.Anything).271		Run(func(args mock.Arguments) {272			out := args.Get(1).(*proxyrpc.CopyResult)273			out.VMFileName = "remote_file_path"274		}).275		Return(nil)276	remotePath, err := inst.Copy("host/path")277	assert.Nil(t, err)...

vm.go

Source:vm.go

...155func (inst *Instance) diagnose(rep *report.Report) ([]byte, bool) {156	if rep == nil {157		panic("rep is nil")158	}159	return inst.impl.Diagnose(rep)160}161func (inst *Instance) Close() {162	inst.impl.Close()163	os.RemoveAll(inst.workdir)164	inst.onClose()165}166type ExitCondition int167const (168	// The program is allowed to exit after timeout.169	ExitTimeout = ExitCondition(1 << iota)170	// The program is allowed to exit with no errors.171	ExitNormal172	// The program is allowed to exit with errors.173	ExitError174)175// MonitorExecution monitors execution of a program running inside of a VM.176// It detects kernel oopses in output, lost connections, hangs, etc.177// outc/errc is what vm.Instance.Run returns, reporter parses kernel output for oopses.178// Exit says which exit modes should be considered as errors/OK.179// Returns a non-symbolized crash report, or nil if no error happens.180func (inst *Instance) MonitorExecution(outc <-chan []byte, errc <-chan error,181	reporter *report.Reporter, exit ExitCondition) (rep *report.Report) {182	return inst.MonitorExecutionRaw(outc, errc, reporter, exit, 0).Report183}184type ExecutionResult struct {185	Report    *report.Report186	RawOutput []byte187}188func (inst *Instance) MonitorExecutionRaw(outc <-chan []byte, errc <-chan error,189	reporter *report.Reporter, exit ExitCondition, beforeContextSize int) (res *ExecutionResult) {190	if beforeContextSize == 0 {191		beforeContextSize = beforeContextDefault192	}193	mon := &monitor{194		inst:          inst,195		outc:          outc,196		errc:          errc,197		reporter:      reporter,198		beforeContext: beforeContextSize,199		exit:          exit,200	}201	return &ExecutionResult{202		Report:    mon.monitorExecution(),203		RawOutput: mon.output,204	}205}206type monitor struct {207	inst          *Instance208	outc          <-chan []byte209	errc          <-chan error210	reporter      *report.Reporter211	exit          ExitCondition212	output        []byte213	beforeContext int214	matchPos      int215}216func (mon *monitor) monitorExecution() *report.Report {217	ticker := time.NewTicker(tickerPeriod * mon.inst.timeouts.Scale)218	defer ticker.Stop()219	lastExecuteTime := time.Now()220	for {221		select {222		case err := <-mon.errc:223			switch err {224			case nil:225				// The program has exited without errors,226				// but wait for kernel output in case there is some delayed oops.227				crash := ""228				if mon.exit&ExitNormal == 0 {229					crash = lostConnectionCrash230				}231				return mon.extractError(crash)232			case ErrTimeout:233				if mon.exit&ExitTimeout == 0 {234					return mon.extractError(timeoutCrash)235				}236				return nil237			default:238				// Note: connection lost can race with a kernel oops message.239				// In such case we want to return the kernel oops.240				crash := ""241				if mon.exit&ExitError == 0 {242					crash = lostConnectionCrash243				}244				return mon.extractError(crash)245			}246		case out, ok := <-mon.outc:247			if !ok {248				mon.outc = nil249				continue250			}251			lastPos := len(mon.output)252			mon.output = append(mon.output, out...)253			if bytes.Contains(mon.output[lastPos:], executingProgram1) ||254				bytes.Contains(mon.output[lastPos:], executingProgram2) {255				lastExecuteTime = time.Now()256			}257			if mon.reporter.ContainsCrash(mon.output[mon.matchPos:]) {258				return mon.extractError("unknown error")259			}260			if len(mon.output) > 2*mon.beforeContext {261				copy(mon.output, mon.output[len(mon.output)-mon.beforeContext:])262				mon.output = mon.output[:mon.beforeContext]263			}264			// Find the starting position for crash matching on the next iteration.265			// We step back from the end of output by maxErrorLength to handle the case266			// when a crash line is currently split/incomplete. And then we try to find267			// the preceding '\n' to have a full line. This is required to handle268			// the case when a particular pattern is ignored as crash, but a suffix269			// of the pattern is detected as crash (e.g. "ODEBUG:" is trimmed to "BUG:").270			mon.matchPos = len(mon.output) - maxErrorLength271			for i := 0; i < maxErrorLength; i++ {272				if mon.matchPos <= 0 || mon.output[mon.matchPos-1] == '\n' {273					break274				}275				mon.matchPos--276			}277			if mon.matchPos < 0 {278				mon.matchPos = 0279			}280		case <-ticker.C:281			// Detect both "no output whatsoever" and "kernel episodically prints282			// something to console, but fuzzer is not actually executing programs".283			if time.Since(lastExecuteTime) > mon.inst.timeouts.NoOutput {284				return mon.extractError(noOutputCrash)285			}286		case <-Shutdown:287			return nil288		}289	}290}291func (mon *monitor) extractError(defaultError string) *report.Report {292	diagOutput, diagWait := []byte{}, false293	if defaultError != "" {294		diagOutput, diagWait = mon.inst.diagnose(mon.createReport(defaultError))295	}296	// Give it some time to finish writing the error message.297	// But don't wait for "no output", we already waited enough.298	if defaultError != noOutputCrash || diagWait {299		mon.waitForOutput()300	}301	if bytes.Contains(mon.output, []byte(fuzzerPreemptedStr)) {302		return nil303	}304	if defaultError == "" && mon.reporter.ContainsCrash(mon.output[mon.matchPos:]) {305		// We did not call Diagnose above because we thought there is no error, so call it now.306		diagOutput, diagWait = mon.inst.diagnose(mon.createReport(defaultError))307		if diagWait {308			mon.waitForOutput()309		}310	}311	rep := mon.createReport(defaultError)312	if rep == nil {313		return nil314	}315	if len(diagOutput) > 0 {316		rep.Output = append(rep.Output, vmDiagnosisStart...)317		rep.Output = append(rep.Output, diagOutput...)318	}319	return rep...

proxyappclient.go

Source:proxyappclient.go

...307	if err != nil {308		log.Logf(0, "error calling runStop(%v) on %v: %v", runID, inst.ID, err)309	}310}311func (inst *instance) Diagnose(r *report.Report) (diagnosis []byte, wait bool) {312	var title string313	if r != nil {314		title = r.Title315	}316	var reply proxyrpc.DiagnoseReply317	err := inst.ProxyApp.Call(318		"ProxyVM.Diagnose",319		proxyrpc.DiagnoseParams{320			ID:          inst.ID,321			ReasonTitle: title,322		},323		&reply)324	if err != nil {325		return nil, false326	}327	return []byte(reply.Diagnosis), false328}329func (inst *instance) Close() {330	var reply proxyrpc.CloseReply331	err := inst.ProxyApp.Call(332		"ProxyVM.Close",333		proxyrpc.CloseParams{...

Diagnose

Using AI Code Generation

1myProxyApp.Diagnose();2myProxyApp.Diagnose();3myProxyApp.Diagnose();4myProxyApp.Diagnose();5myProxyApp.Diagnose();6myProxyApp.Diagnose();7myProxyApp.Diagnose();8myProxyApp.Diagnose();9myProxyApp.Diagnose();10myProxyApp.Diagnose();11myProxyApp.Diagnose();12myProxyApp.Diagnose();13myProxyApp.Diagnose();14myProxyApp.Diagnose();15myProxyApp.Diagnose();16myProxyApp.Diagnose();17myProxyApp.Diagnose();18myProxyApp.Diagnose();19myProxyApp.Diagnose();

Diagnose

Using AI Code Generation

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

Diagnose

Using AI Code Generation

1import (2func main() {3	proxyapp.Diagnose()4	fmt.Println("End of main")5}6import (7func Diagnose() {8	fmt.Println("Diagnose method of proxyapp class")9}10import (11func Diagnose() {12	fmt.Println("Diagnose method of proxyapp class")13}14import (15func Diagnose() {16	fmt.Println("Diagnose method of proxyapp class")17}18import (19func Diagnose() {20	fmt.Println("Diagnose method of proxyapp class")21}22import (23func Diagnose() {24	fmt.Println("Diagnose method of proxyapp class")25}26import (27func Diagnose() {28	fmt.Println("Diagnose method of proxyapp class")29}30import (31func Diagnose() {32	fmt.Println("Diagnose method of proxyapp class")33}34import (35func Diagnose() {36	fmt.Println("Diagnose method of proxyapp class")37}38import (39func Diagnose() {40	fmt.Println("Diagnose method of proxyapp class")41}

Diagnose

Using AI Code Generation

1import (2func main() {3	proxyappObj.Diagnose()4	fmt.Println("ProxyApp main function")5}6import (7type ProxyApp struct {8}9func (p ProxyApp) Diagnose() {10	fmt.Println("Diagnose method of ProxyApp")11}

Diagnose

Using AI Code Generation

1import (2func main() {3	proxyapp.Diagnose()4}5import (6func Diagnose() {7	diagnose.Diagnose()8}9import (10func Diagnose() {11	health.Health()12}13import (14func Health() {15	heart.Heart()16}17import (18func Heart() {19	lung.Lung()20}21import (22func Lung() {23	fmt.Println("Diagnose")24}25import (26func main() {27	proxyapp.Diagnose()28}29import (30func Diagnose() {31	diagnose.Diagnose()32}33import (

Diagnose

Using AI Code Generation

1import (2func main() {3    var proxy = proxyapp.NewProxy()4    if err != nil {5        fmt.Println(err)6    }7}82018/05/06 01:23:05 Content-Type: text/html; charset=ISO-8859-192018/05/06 01:23:05 Set-Cookie: 1P_JAR=2018-05-03-15; expires=Sat, 02-Jun-2018 15:53:04 GMT; path=/; domain=.google.com102018/05/06 01:23:05 Set-Cookie: NID=133=U9OZlR8rM1r7vYiDpMw7yR8iLWV6Ivq3NqV6Uc8BnWQ2Y1sJbZnBjy8TmWkzvZ9D9Xm7nT6s0sQsL1JfM2yVcA0oWd7VzvB9X1xV0sL8Wb7rYvD; expires=Fri, 02-Nov-2018 15:53:04

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