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How to use checkDevlinkPCI method of host Package

Best Syzkaller code snippet using host.checkDevlinkPCI

features_linux.go

Source:features_linux.go

...21	checkFeature[FeatureLeak] = checkLeak22	checkFeature[FeatureNetInjection] = checkNetInjection23	checkFeature[FeatureNetDevices] = unconditionallyEnabled24	checkFeature[FeatureKCSAN] = checkKCSAN25	checkFeature[FeatureDevlinkPCI] = checkDevlinkPCI26	checkFeature[FeatureUSBEmulation] = checkUSBEmulation27}28func checkCoverage() string {29	if reason := checkDebugFS(); reason != "" {30		return reason31	}32	if !osutil.IsExist("/sys/kernel/debug/kcov") {33		return "CONFIG_KCOV is not enabled"34	}35	if err := osutil.IsAccessible("/sys/kernel/debug/kcov"); err != nil {36		return err.Error()37	}38	return ""39}40func checkComparisons() (reason string) {41	return checkCoverageFeature(FeatureComparisons)42}43func checkExtraCoverage() (reason string) {44	return checkCoverageFeature(FeatureExtraCoverage)45}46func checkCoverageFeature(feature int) (reason string) {47	if reason = checkDebugFS(); reason != "" {48		return reason49	}50	// TODO(dvyukov): this should run under target arch.51	// E.g. KCOV ioctls were initially not supported on 386 (missing compat_ioctl),52	// and a 386 executor won't be able to use them, but an amd64 fuzzer will be.53	fd, err := syscall.Open("/sys/kernel/debug/kcov", syscall.O_RDWR, 0)54	if err != nil {55		return "CONFIG_KCOV is not enabled"56	}57	defer syscall.Close(fd)58	// Trigger host target lazy initialization, it will fill linux.KCOV_INIT_TRACE.59	// It's all wrong and needs to be refactored.60	if _, err := prog.GetTarget(runtime.GOOS, runtime.GOARCH); err != nil {61		return fmt.Sprintf("failed to get target: %v", err)62	}63	coverSize := uintptr(64 << 10)64	_, _, errno := syscall.Syscall(65		syscall.SYS_IOCTL, uintptr(fd), linux.KCOV_INIT_TRACE, coverSize)66	if errno != 0 {67		return fmt.Sprintf("ioctl(KCOV_INIT_TRACE) failed: %v", errno)68	}69	mem, err := syscall.Mmap(fd, 0, int(coverSize*unsafe.Sizeof(uintptr(0))),70		syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_SHARED)71	if err != nil {72		return fmt.Sprintf("KCOV mmap failed: %v", err)73	}74	defer func() {75		if err := syscall.Munmap(mem); err != nil {76			reason = fmt.Sprintf("munmap failed: %v", err)77		}78	}()79	switch feature {80	case FeatureComparisons:81		_, _, errno = syscall.Syscall(syscall.SYS_IOCTL,82			uintptr(fd), linux.KCOV_ENABLE, linux.KCOV_TRACE_CMP)83		if errno != 0 {84			if errno == 524 { // ENOTSUPP85				return "CONFIG_KCOV_ENABLE_COMPARISONS is not enabled"86			}87			return fmt.Sprintf("ioctl(KCOV_TRACE_CMP) failed: %v", errno)88		}89	case FeatureExtraCoverage:90		arg := KcovRemoteArg{91			TraceMode:    uint32(linux.KCOV_TRACE_PC),92			AreaSize:     uint32(coverSize * unsafe.Sizeof(uintptr(0))),93			NumHandles:   0,94			CommonHandle: 0,95		}96		_, _, errno = syscall.Syscall(syscall.SYS_IOCTL,97			uintptr(fd), linux.KCOV_REMOTE_ENABLE, uintptr(unsafe.Pointer(&arg)))98		if errno != 0 {99			if errno == 25 { // ENOTTY100				return "extra coverage is not supported by the kernel"101			}102			return fmt.Sprintf("ioctl(KCOV_REMOTE_ENABLE) failed: %v", errno)103		}104	default:105		panic("unknown feature in checkCoverageFeature")106	}107	defer func() {108		_, _, errno = syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), linux.KCOV_DISABLE, 0)109		if errno != 0 {110			reason = fmt.Sprintf("ioctl(KCOV_DISABLE) failed: %v", errno)111		}112	}()113	return ""114}115type KcovRemoteArg struct {116	TraceMode    uint32117	AreaSize     uint32118	NumHandles   uint32119	CommonHandle uint64120	// Handles []uint64 goes here.121}122func checkFault() string {123	if err := osutil.IsAccessible("/proc/self/make-it-fail"); err != nil {124		return "CONFIG_FAULT_INJECTION is not enabled"125	}126	if err := osutil.IsAccessible("/proc/thread-self/fail-nth"); err != nil {127		return "kernel does not have systematic fault injection support"128	}129	if reason := checkDebugFS(); reason != "" {130		return reason131	}132	if err := osutil.IsAccessible("/sys/kernel/debug/failslab/ignore-gfp-wait"); err != nil {133		return "CONFIG_FAULT_INJECTION_DEBUG_FS or CONFIG_FAILSLAB are not enabled"134	}135	return ""136}137func checkLeak() string {138	if reason := checkDebugFS(); reason != "" {139		return reason140	}141	fd, err := syscall.Open("/sys/kernel/debug/kmemleak", syscall.O_RDWR, 0)142	if err != nil {143		return "CONFIG_DEBUG_KMEMLEAK is not enabled"144	}145	defer syscall.Close(fd)146	if _, err := syscall.Write(fd, []byte("scan=off")); err != nil {147		if err == syscall.EBUSY {148			return "KMEMLEAK disabled: increase CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE or unset CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF"149		}150		return fmt.Sprintf("/sys/kernel/debug/kmemleak write failed: %v", err)151	}152	return ""153}154func checkSandboxNamespace() string {155	if err := osutil.IsAccessible("/proc/self/ns/user"); err != nil {156		return err.Error()157	}158	return ""159}160func checkSandboxAndroid() string {161	if err := osutil.IsAccessible("/sys/fs/selinux/policy"); err != nil {162		return err.Error()163	}164	return ""165}166func checkNetInjection() string {167	if err := osutil.IsAccessible("/dev/net/tun"); err != nil {168		return err.Error()169	}170	return ""171}172func checkUSBEmulation() string {173	if err := osutil.IsAccessible("/dev/raw-gadget"); err != nil {174		return err.Error()175	}176	return ""177}178func checkDebugFS() string {179	if err := osutil.IsAccessible("/sys/kernel/debug"); err != nil {180		return "debugfs is not enabled or not mounted"181	}182	return ""183}184func checkKCSAN() string {185	if err := osutil.IsAccessible("/sys/kernel/debug/kcsan"); err != nil {186		return err.Error()187	}188	return ""189}190func checkDevlinkPCI() string {191	if err := osutil.IsAccessible("/sys/bus/pci/devices/0000:00:10.0/"); err != nil {192		return "PCI device 0000:00:10.0 is not available"193	}194	return ""195}...

checkDevlinkPCI

Using AI Code Generation

1import (2func main() {3	var hostObj device_connectivity.Host = device_connectivity.NewHost()4	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.0"))5	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.1"))6	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.2"))7	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.3"))8	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.4"))9	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.5"))10	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.6"))11	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.7"))12	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.8"))13	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.9"))14	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.10"))15	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.11"))16	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.12"))17	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.13"))18	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.14"))19	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.15"))20	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.16"))21	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.17"))22	fmt.Println(hostObj.CheckDeviceConnection("0000:03:00.18"))

checkDevlinkPCI

Using AI Code Generation

1import (2func main() {3	nvml.Init()4	defer nvml.Shutdown()5	devCount, _ := nvml.GetDeviceCount()6	for i := uint(0); i < devCount; i++ {7		device, _ := nvml.GetDeviceHandleByIndex(i)8		pci, _ := device.GetPciInfo()9		fmt.Printf("PCI: %s\n", pci)10		host, _ := device.GetHostBridge()11		fmt.Printf("HostBridge: %s\n", host)12		dev, _ := host.CheckDevlinkPCI(pci)13		fmt.Printf("DevlinkPCI: %s\n", dev)14	}15}

checkDevlinkPCI

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello, playground")4	flake := sonyflake.NewSonyflake(sonyflake.Settings{})5	id, err := flake.NextID()6	if err != nil {7		fmt.Println(err)8	}9	fmt.Println(id)10}

checkDevlinkPCI

Using AI Code Generation

1import (2func main() {3	host := model.Host{}4	pci, _ := host.CheckDevlinkPCI("eno1")5	fmt.Println("PCI address of eno1 is: ", pci)6}7import (8func main() {9	host := model.Host{}10	pci, _ := host.CheckVfioPCI("eno1")11	fmt.Println("PCI address of eno1 is: ", pci)12}13import (14func main() {15	host := model.Host{}16	pci, _ := host.CheckVfioPCI("eno1")17	fmt.Println("PCI address of eno1 is: ", pci)18}19import (20func main() {21	host := model.Host{}22	pci, _ := host.CheckVfioPCI("eno1")23	fmt.Println("PCI address of eno1 is: ", pci)24}

checkDevlinkPCI

Using AI Code Generation

1import (2func main() {3 fmt.Println("main function of 2.go")4 obj := host.Host{}5 obj.CheckDevlinkPCI()6}

checkDevlinkPCI

Using AI Code Generation

1func main() {2	host := host.New()3	_, err := host.CheckDevlinkPCI("0000:00:0d.0")4	if err != nil {5		fmt.Println(err.Error())6	}7	fmt.Println("Success")8}

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