How to use checkNicVF method of host Package

Best Syzkaller code snippet using host.checkNicVF

features_linux.go

Source:features_linux.go

...27	checkFeature[FeatureNetInjection] = checkNetInjection28	checkFeature[FeatureNetDevices] = unconditionallyEnabled29	checkFeature[FeatureKCSAN] = checkKCSAN30	checkFeature[FeatureDevlinkPCI] = checkDevlinkPCI31	checkFeature[FeatureNicVF] = checkNicVF32	checkFeature[FeatureUSBEmulation] = checkUSBEmulation33	checkFeature[FeatureVhciInjection] = checkVhciInjection34	checkFeature[FeatureWifiEmulation] = checkWifiEmulation35	checkFeature[Feature802154Emulation] = check802154Emulation36}37func checkCoverage() string {38	if reason := checkDebugFS(); reason != "" {39		return reason40	}41	if !osutil.IsExist("/sys/kernel/debug/kcov") {42		return "CONFIG_KCOV is not enabled"43	}44	if err := osutil.IsAccessible("/sys/kernel/debug/kcov"); err != nil {45		return err.Error()46	}47	return ""48}49func checkComparisons() (reason string) {50	return checkCoverageFeature(FeatureComparisons)51}52func checkExtraCoverage() (reason string) {53	return checkCoverageFeature(FeatureExtraCoverage)54}55func checkDelayKcovMmap() string {56	// The kcov implementation in Linux (currently) does not adequately handle subsequent57	// mmap invocations on the same descriptor. When that problem is fixed, we want58	// syzkaller to differentiate between distributions as this allows to noticeably speed59	// up fuzzing.60	return checkCoverageFeature(FeatureDelayKcovMmap)61}62func kcovTestMmap(fd int, coverSize uintptr) (reason string) {63	mem, err := syscall.Mmap(fd, 0, int(coverSize*unsafe.Sizeof(uintptr(0))),64		syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_SHARED)65	if err != nil {66		return fmt.Sprintf("KCOV mmap failed: %v", err)67	}68	defer func() {69		if err := syscall.Munmap(mem); err != nil {70			reason = fmt.Sprintf("munmap failed: %v", err)71		}72	}()73	// Now the tricky part - mmap may say it has succeeded, but the memory is74	// in fact not allocated.75	// We try to access it. If go does not panic, everything is fine.76	prevValue := debug.SetPanicOnFault(true)77	defer debug.SetPanicOnFault(prevValue)78	defer func() {79		if r := recover(); r != nil {80			reason = "mmap returned an invalid pointer"81		}82	}()83	mem[0] = 084	return ""85}86func checkCoverageFeature(feature int) (reason string) {87	if reason = checkDebugFS(); reason != "" {88		return reason89	}90	// TODO(dvyukov): this should run under target arch.91	// E.g. KCOV ioctls were initially not supported on 386 (missing compat_ioctl),92	// and a 386 executor won't be able to use them, but an amd64 fuzzer will be.93	fd, err := syscall.Open("/sys/kernel/debug/kcov", syscall.O_RDWR, 0)94	if err != nil {95		return "CONFIG_KCOV is not enabled"96	}97	defer syscall.Close(fd)98	// Trigger host target lazy initialization, it will fill linux.KCOV_INIT_TRACE.99	// It's all wrong and needs to be refactored.100	if _, err := prog.GetTarget(runtime.GOOS, runtime.GOARCH); err != nil {101		return fmt.Sprintf("failed to get target: %v", err)102	}103	coverSize := uintptr(64 << 10)104	_, _, errno := syscall.Syscall(105		syscall.SYS_IOCTL, uintptr(fd), linux.KCOV_INIT_TRACE, coverSize)106	if errno != 0 {107		return fmt.Sprintf("ioctl(KCOV_INIT_TRACE) failed: %v", errno)108	}109	if reason = kcovTestMmap(fd, coverSize); reason != "" {110		return reason111	}112	disableKcov := func() {113		_, _, errno = syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), linux.KCOV_DISABLE, 0)114		if errno != 0 {115			reason = fmt.Sprintf("ioctl(KCOV_DISABLE) failed: %v", errno)116		}117	}118	switch feature {119	case FeatureComparisons:120		_, _, errno = syscall.Syscall(syscall.SYS_IOCTL,121			uintptr(fd), linux.KCOV_ENABLE, linux.KCOV_TRACE_CMP)122		if errno != 0 {123			if errno == 524 { // ENOTSUPP124				return "CONFIG_KCOV_ENABLE_COMPARISONS is not enabled"125			}126			return fmt.Sprintf("ioctl(KCOV_TRACE_CMP) failed: %v", errno)127		}128		defer disableKcov()129	case FeatureExtraCoverage:130		arg := KcovRemoteArg{131			TraceMode:    uint32(linux.KCOV_TRACE_PC),132			AreaSize:     uint32(coverSize * unsafe.Sizeof(uintptr(0))),133			NumHandles:   0,134			CommonHandle: 0,135		}136		_, _, errno = syscall.Syscall(syscall.SYS_IOCTL,137			uintptr(fd), linux.KCOV_REMOTE_ENABLE, uintptr(unsafe.Pointer(&arg)))138		if errno != 0 {139			if errno == 25 { // ENOTTY140				return "extra coverage is not supported by the kernel"141			}142			return fmt.Sprintf("ioctl(KCOV_REMOTE_ENABLE) failed: %v", errno)143		}144		defer disableKcov()145	case FeatureDelayKcovMmap:146		if reason = kcovTestMmap(fd, coverSize); reason != "" {147			return reason148		}149	default:150		panic("unknown feature in checkCoverageFeature")151	}152	return ""153}154type KcovRemoteArg struct {155	TraceMode    uint32156	AreaSize     uint32157	NumHandles   uint32158	_            uint32159	CommonHandle uint64160	// Handles []uint64 goes here.161}162func checkFault() string {163	if err := osutil.IsAccessible("/proc/self/make-it-fail"); err != nil {164		return "CONFIG_FAULT_INJECTION is not enabled"165	}166	if err := osutil.IsAccessible("/proc/thread-self/fail-nth"); err != nil {167		return "kernel does not have systematic fault injection support"168	}169	if reason := checkDebugFS(); reason != "" {170		return reason171	}172	if err := osutil.IsAccessible("/sys/kernel/debug/failslab/ignore-gfp-wait"); err != nil {173		return "CONFIG_FAULT_INJECTION_DEBUG_FS or CONFIG_FAILSLAB are not enabled"174	}175	return ""176}177func checkLeak() string {178	if reason := checkDebugFS(); reason != "" {179		return reason180	}181	fd, err := syscall.Open("/sys/kernel/debug/kmemleak", syscall.O_RDWR, 0)182	if err != nil {183		return "CONFIG_DEBUG_KMEMLEAK is not enabled"184	}185	defer syscall.Close(fd)186	if _, err := syscall.Write(fd, []byte("scan=off")); err != nil {187		if err == syscall.EBUSY {188			return "KMEMLEAK disabled: increase CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE or unset CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF"189		}190		return fmt.Sprintf("/sys/kernel/debug/kmemleak write failed: %v", err)191	}192	return ""193}194func checkSandboxNamespace() string {195	if err := osutil.IsAccessible("/proc/self/ns/user"); err != nil {196		return err.Error()197	}198	return ""199}200func checkSandboxAndroid() string {201	if err := osutil.IsAccessible("/sys/fs/selinux/policy"); err != nil {202		return err.Error()203	}204	return ""205}206func checkNetInjection() string {207	if err := osutil.IsAccessible("/dev/net/tun"); err != nil {208		return err.Error()209	}210	return ""211}212func checkUSBEmulation() string {213	if err := osutil.IsAccessible("/dev/raw-gadget"); err != nil {214		return err.Error()215	}216	return ""217}218func checkVhciInjection() string {219	if err := osutil.IsAccessible("/dev/vhci"); err != nil {220		return err.Error()221	}222	return ""223}224func checkDebugFS() string {225	if err := osutil.IsAccessible("/sys/kernel/debug"); err != nil {226		return "debugfs is not enabled or not mounted"227	}228	return ""229}230func checkKCSAN() string {231	if err := osutil.IsAccessible("/sys/kernel/debug/kcsan"); err != nil {232		return err.Error()233	}234	return ""235}236func checkDevlinkPCI() string {237	if err := osutil.IsAccessible("/sys/bus/pci/devices/0000:00:10.0/"); err != nil {238		return "PCI device 0000:00:10.0 is not available"239	}240	return ""241}242func checkNicVF() string {243	if err := osutil.IsAccessible("/sys/bus/pci/devices/0000:00:11.0/"); err != nil {244		return "PCI device 0000:00:11.0 is not available"245	}246	return ""247}248func checkWifiEmulation() string {249	if err := osutil.IsAccessible("/sys/class/mac80211_hwsim/"); err != nil {250		return err.Error()251	}252	// We use HWSIM_ATTR_PERM_ADDR which was added in 4.17.253	return requireKernel(4, 17)254}255func check802154Emulation() string {256	if err := osutil.IsAccessible("/sys/bus/platform/devices/mac802154_hwsim"); err != nil {...

checkNicVF

Using AI Code Generation

1import (2func main() {3    if err != nil {4        log.Fatal(err)5    }6    c, err := govmomi.NewClient(context.Background(), u, true)7    if err != nil {8        log.Fatal(err)9    }10    f := find.NewFinder(c.Client, true)11    dc, err := f.DefaultDatacenter(context.Background())12    if err != nil {13        log.Fatal(err)14    }15    f.SetDatacenter(dc)16    net, err := f.Network(context.Background(), "VM Network")17    if err != nil {18        log.Fatal(err)19    }20    netRef := net.Reference()21    err = net.Properties(context.Background(), netRef, nil, &netProps)22    if err != nil {23        log.Fatal(err)24    }25    err = net.Properties(context.Background(), hostRef, nil, &hostProps)26    if err != nil {27        log.Fatal(err)28    }29    host := hostProps.Reference()30    hostSystem := object.NewHostSystem(c.Client, host)31    for _, nic := range nics {32        isVF, err := hostSystem.CheckNicVF(context.Background(), nic.Device)

checkNicVF

Using AI Code Generation

1import (2func main() {3    ctx, cancel := context.WithCancel(context.Background())4    defer cancel()5    u, err := url.Parse(os.Args[1])6    if err != nil {7        panic(err)8    }9    u.User = url.UserPassword(os.Args[2], os.Args[3])10    c, err := govmomi.NewClient(ctx, u, true)11    if err != nil {12        panic(err)13    }14    f := find.NewFinder(c.Client, true)15    dc, err := f.DefaultDatacenter(ctx)16    if err != nil {17        panic(err)18    }19    f.SetDatacenter(dc)20    dcs, err := f.DatacenterList(ctx, "*")21    if err != nil {22        panic(err)23    }24    if len(dcs) != 1 {25        panic("expected 1 datacenter, got " + string(len(dcs)))26    }27    clusters, err := f.ClusterComputeResourceList(ctx, "*")28    if err != nil {29        panic(err)30    }31    if len(clusters) != 1 {32        panic("expected 1 cluster, got " + string(len(clusters)))33    }34    hosts, err := f.HostSystemList(ctx, "*")35    if err != nil {36        panic(err)37    }38    if len(hosts) != 1 {39        panic("expected 1 host, got " + string(len(hosts)))40    }41    vms, err := f.VirtualMachineList(ctx, "*")42    if err != nil {43        panic(err)44    }45    if len(vms) != 1 {46        panic("expected 1 vm, got " + string(len(vms)))47    }

checkNicVF

Using AI Code Generation

1import (2func main() {3        if len(os.Args) != 4 {4                fmt.Println("Usage: go run 2.go <vCenter IP> <vCenter username> <vCenter password>")5                os.Exit(1)6        }7        ctx, cancel := context.WithCancel(context.Background())8        defer cancel()9        if err != nil {10                log.Fatal(err)11        }12        url.User = url.UserPassword(os.Args[2], os.Args[3])13        c, err := govmomi.NewClient(ctx, url, true)14        if err != nil {15                log.Fatal(err)16        }17        f := find.NewFinder(c.Client, true)18        dc, err := f.DefaultDatacenter(ctx)19        if err != nil {20                log.Fatal(err)21        }22        f.SetDatacenter(dc)23        dcs, err := f.DatacenterList(ctx, "*")24        if err != nil {25                log.Fatal(err)26        }27        if len(dcs) != 1 {28                log.Fatal("expected 1 datacenter, got ", len(dcs))29        }30        vm, err := f.VirtualMachine(ctx, "vm-vmware-1")31        if err != nil {32                log.Fatal(err)33        }34        h, err := f.HostSystem(ctx, "esx-1")35        if err != nil {36                log.Fatal(err)37        }38        n, err := f.Network(ctx, "VM Network")39        if err != nil {40                log.Fatal(err)41        }42        ds, err := f.Datastore(ctx, "datastore-1")43        if err != nil {44                log.Fatal(err)45        }

checkNicVF

Using AI Code Generation

1import (2var (3	vcURL      = os.Getenv("VC_URL")4	vcUser     = os.Getenv("VC_USER")5	vcPassword = os.Getenv("VC_PASSWORD")6func main() {7	u, err := soap.ParseURL(vcURL)8	if err != nil {9		fmt.Printf("error parsing VC_URL: %v10		os.Exit(1)11	}12	c, err := govmomi.NewClient(context.Background(), u, true)13	if err != nil {14		fmt.Printf("error logging in to ESX or vCenter: %v15		os.Exit(1)16	}17	u.User = url.UserPassword(vcUser, vcPassword)18	f := find.NewFinder(c.Client, true)19	dc, err := f.DefaultDatacenter(context.Background())20	if err != nil {21		fmt.Printf("error finding datacenter: %v22		os.Exit(1)23	}24	f.SetDatacenter(dc)25	h, err := f.DefaultHostSystem(context.Background())26	if err != nil {27		fmt.Printf("error finding host: %v28		os.Exit(1)29	}30	err = h.Properties(context.Background(), h.Reference(), []string{"network"}, &hs)31	if err != nil {32		fmt.Printf("error getting host properties: %v33		os.Exit(1)34	}35	err = h.Properties(context.Background(), hn, []string{"networkInfo"}, &hns)

checkNicVF

Using AI Code Generation

1func main() {2    ctx := context.Background()3    session, err := govmomi.NewClient(ctx, url, true)4    if err != nil {5        log.Fatal(err)6    }7    finder := find.NewFinder(session.Client, true)8    dc, err := finder.DefaultDatacenter(ctx)9    if err != nil {10        log.Fatal(err)11    }12    finder.SetDatacenter(dc)13    host, err := finder.HostSystem(ctx, "dc1-h1")14    if err != nil {15        log.Fatal(err)16    }17    hostNetworkSystem, err := host.ConfigManager().NetworkSystem(ctx)18    if err != nil {19        log.Fatal(err)20    }21    hostNetworkInfo, err := hostNetworkSystem.NetworkInfo(ctx)22    if err != nil {23        log.Fatal(err)24    }25    hostVirtualNicInfo, err := hostNetworkSystem.QueryNetConfig(ctx, "standard")26    if err != nil {27        log.Fatal(err)28    }29    hostVirtualNicManagerInfo, err := hostNetworkSystem.QueryNetworkHint(ctx, hostVirtualNicInfo)30    if err != nil {31        log.Fatal(err)32    }33    hostVirtualNicManagerInfo, err = hostNetworkSystem.QueryNetworkHint(ctx, hostVirtualNicInfo)34    if err != nil {35        log.Fatal(err)36    }37    hostVirtualNicManagerInfo, err = hostNetworkSystem.QueryNetworkHint(ctx, hostVirtualNicInfo)38    if err != nil {39        log.Fatal(err)40    }41    hostVirtualNicManagerInfo, err = hostNetworkSystem.QueryNetworkHint(ctx, hostVirtualNicInfo)42    if err != nil {43        log.Fatal(err)44    }45    hostVirtualNicManagerInfo, err = hostNetworkSystem.QueryNetworkHint(ctx, hostVirtualNicInfo)46    if err != nil {47        log.Fatal(err)48    }

checkNicVF

Using AI Code Generation

1nic, err := hostObj.CheckNicVF("vmnic1")2if err != nil {3    fmt.Println("Error:", err)4} else {5    fmt.Println("Nic:", nic)6}

checkNicVF

Using AI Code Generation

1func main() {2    host, err := vim25.New(context.TODO(), vim25.Client(&url.URL{3    }, true, &http.Transport{4        TLSClientConfig: &tls.Config{5        },6    }))7    if err != nil {8        log.Fatal(err)9    }10    defer host.Logout(context.Background())11    err = host.CheckNicVF(context.Background(), hostName, nicName, nicVF)12    if err != nil {13        fmt.Println("Error: " + err.Error())14    } else {15        fmt.Println("Nic VF is present on the host")16    }17}18func main() {19    host, err := vim25.New(context.TODO(), vim25.Client(&url.URL{20    }, true, &http.Transport{21        TLSClientConfig: &tls.Config{22        },23    }))24    if err != nil {25        log.Fatal(err)26    }27    defer host.Logout(context.Background())28    err = host.CheckNicVF(context.Background(), hostName, nicName, nicVF)29    if err != nil {30        fmt.Println("Error: " + err.Error())31    } else {32        fmt.Println("Nic VF is present on the host")33    }34}35func main() {36    host, err := vim25.New(context.TODO(), vim25.Client(&url.URL{37    }, true, &http.Transport{38        TLSClientConfig: &tls.Config{39        },40    }))

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