How to use checkNicVF method of host Package

Best Syzkaller code snippet using host.checkNicVF

features_linux.go

Source:features_linux.go Github

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...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 {...

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checkNicVF

Using AI Code Generation

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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)

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checkNicVF

Using AI Code Generation

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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 }

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checkNicVF

Using AI Code Generation

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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 }

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checkNicVF

Using AI Code Generation

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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)

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checkNicVF

Using AI Code Generation

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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 }

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checkNicVF

Using AI Code Generation

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

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checkNicVF

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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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