How to use isSupportedSyscallName method of host Package

Best Syzkaller code snippet using host.isSupportedSyscallName

syscalls_linux.go

Source:syscalls_linux.go

...64		return r, v65	}66	return isSupportedTrial(c)67}68func isSupportedSyscallName(name string, target *prog.Target) (bool, string) {69	syscall := target.SyscallMap[name]70	if syscall == nil {71		return false, fmt.Sprintf("sys_%v is not present in the target", name)72	}73	return isSupportedSyscall(syscall, target)74}75func parseKallsyms(kallsyms []byte, arch string) map[string]bool {76	set := make(map[string]bool)77	var re *regexp.Regexp78	switch arch {79	case targets.I386, targets.AMD64:80		re = regexp.MustCompile(` T (__ia32_|__x64_)?sys_([^\n]+)\n`)81	case targets.ARM, targets.ARM64:82		re = regexp.MustCompile(` T (__arm64_)?sys_([^\n]+)\n`)83	case targets.PPC64LE:84		re = regexp.MustCompile(` T ()?sys_([^\n]+)\n`)85	case targets.MIPS64LE:86		re = regexp.MustCompile(` T sys_(mips_)?([^\n]+)\n`)87	case targets.S390x:88		re = regexp.MustCompile(` T (__s390_|__s390x_)?sys_([^\n]+)\n`)89	case targets.RiscV64:90		re = regexp.MustCompile(` T sys_(riscv_)?([^\n]+)\n`)91	default:92		panic("unsupported arch for kallsyms parsing")93	}94	matches := re.FindAllSubmatch(kallsyms, -1)95	for _, m := range matches {96		name := string(m[2])97		set[name] = true98	}99	return set100}101func isSupportedKallsyms(c *prog.Syscall) (bool, string) {102	name := c.CallName103	if newname := kallsymsRenameMap[name]; newname != "" {104		name = newname105	}106	if !kallsymsSyscallSet[name] {107		return false, fmt.Sprintf("sys_%v is not enabled in the kernel (not present in /proc/kallsyms)", name)108	}109	return true, ""110}111func isSupportedTrial(c *prog.Syscall) (bool, string) {112	switch c.CallName {113	// These known to cause hangs.114	case "exit", "pause":115		return true, ""116	}117	reason := fmt.Sprintf("sys_%v is not enabled in the kernel (returns ENOSYS)", c.CallName)118	trialMu.Lock()119	defer trialMu.Unlock()120	if res, ok := trialSupported[c.NR]; ok {121		return res, reason122	}123	cmd := osutil.Command(os.Args[0])124	cmd.Env = []string{fmt.Sprintf("SYZ_TRIAL_TEST=%v", c.NR)}125	_, err := osutil.Run(10*time.Second, cmd)126	res := err != nil127	trialSupported[c.NR] = res128	return res, reason129}130func init() {131	str := os.Getenv("SYZ_TRIAL_TEST")132	if str == "" {133		return134	}135	nr, err := strconv.Atoi(str)136	if err != nil {137		panic(err)138	}139	arg := ^uintptr(0) - 1e4 // something as invalid as possible140	_, _, err = syscall.Syscall6(uintptr(nr), arg, arg, arg, arg, arg, arg)141	if err == syscall.ENOSYS {142		os.Exit(0)143	}144	os.Exit(1)145}146// Some syscall names diverge in __NR_* consts and kallsyms.147// umount2 is renamed to umount in arch/x86/entry/syscalls/syscall_64.tbl.148// Where umount is renamed to oldumount is unclear.149var (150	kallsymsOnce       sync.Once151	kallsymsSyscallSet map[string]bool152	kallsymsRenameMap  = map[string]string{153		"umount":  "oldumount",154		"umount2": "umount",155		"stat":    "newstat",156	}157	trialMu         sync.Mutex158	trialSupported  = make(map[uint64]bool)159	filesystems     []byte160	filesystemsOnce sync.Once161	lsmOnce         sync.Once162	lsmError        error163	lsmDisabled     map[string]bool164)165func isSyzUsbSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {166	reason := checkUSBEmulation()167	return reason == "", reason168}169func alwaysSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {170	return true, ""171}172func isNetInjectionSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {173	reason := checkNetInjection()174	return reason == "", reason175}176func isVhciInjectionSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {177	reason := checkVhciInjection()178	return reason == "", reason179}180func isWifiEmulationSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {181	reason := checkWifiEmulation()182	return reason == "", reason183}184func isSyzKvmSetupCPUSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {185	switch c.Name {186	case "syz_kvm_setup_cpu$x86":187		if runtime.GOARCH == targets.AMD64 || runtime.GOARCH == targets.I386 {188			return true, ""189		}190	case "syz_kvm_setup_cpu$arm64":191		if runtime.GOARCH == targets.ARM64 {192			return true, ""193		}194	case "syz_kvm_setup_cpu$ppc64":195		if runtime.GOARCH == targets.PPC64LE {196			return true, ""197		}198	}199	return false, "unsupported arch"200}201func isSyzOpenDevSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {202	return isSupportedSyzOpenDev(sandbox, c)203}204func isSyzInitNetSocketSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {205	if ok, reason := onlySandboxNone(sandbox); !ok {206		return false, reason207	}208	return isSupportedSocket(c)209}210func isSyzGenetlinkGetFamilyIDSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {211	fd, err := syscall.Socket(syscall.AF_NETLINK, syscall.SOCK_RAW, syscall.NETLINK_GENERIC)212	if fd == -1 {213		return false, fmt.Sprintf("socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) failed: %v", err)214	}215	// TODO: try to obtain actual family ID here. It will disable whole sets of sendmsg syscalls.216	syscall.Close(fd)217	return true, ""218}219func isSyzMountImageSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {220	if ok, reason := onlySandboxNone(sandbox); !ok {221		return ok, reason222	}223	fstype, ok := extractStringConst(c.Args[0].Type)224	if !ok {225		panic("syz_mount_image arg is not string")226	}227	return isSupportedFilesystem(fstype)228}229func isSyzReadPartTableSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {230	return onlySandboxNone(sandbox)231}232func isSyzIoUringSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {233	return isSupportedSyscallName("io_uring_setup", target)234}235func isSyzMemcpySupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {236	ret, msg := isSyzIoUringSupported(c, target, sandbox)237	if ret {238		return ret, msg239	}240	return isSyzKvmSetupCPUSupported(c, target, sandbox)241}242func isBtfVmlinuxSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {243	if err := osutil.IsAccessible("/sys/kernel/btf/vmlinux"); err != nil {244		return false, err.Error()245	}246	return onlySandboxNone(sandbox)247}248func isSyzFuseSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {249	if ok, reason := isSupportedFilesystem("fuse"); !ok {250		return ok, reason251	}252	if ok, reason := onlySandboxNoneOrNamespace(sandbox); !ok {253		return false, reason254	}255	return true, ""256}257func isSyzUsbIPSupported(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {258	if err := osutil.IsWritable("/sys/devices/platform/vhci_hcd.0/attach"); err != nil {259		return false, err.Error()260	}261	return onlySandboxNoneOrNamespace(sandbox)262}263var syzkallSupport = map[string]func(*prog.Syscall, *prog.Target, string) (bool, string){264	"syz_open_dev":                isSyzOpenDevSupported,265	"syz_open_procfs":             isSyzOpenProcfsSupported,266	"syz_open_pts":                alwaysSupported,267	"syz_execute_func":            alwaysSupported,268	"syz_emit_ethernet":           isNetInjectionSupported,269	"syz_extract_tcp_res":         isNetInjectionSupported,270	"syz_usb_connect":             isSyzUsbSupported,271	"syz_usb_connect_ath9k":       isSyzUsbSupported,272	"syz_usb_disconnect":          isSyzUsbSupported,273	"syz_usb_control_io":          isSyzUsbSupported,274	"syz_usb_ep_write":            isSyzUsbSupported,275	"syz_usb_ep_read":             isSyzUsbSupported,276	"syz_kvm_setup_cpu":           isSyzKvmSetupCPUSupported,277	"syz_emit_vhci":               isVhciInjectionSupported,278	"syz_init_net_socket":         isSyzInitNetSocketSupported,279	"syz_genetlink_get_family_id": isSyzGenetlinkGetFamilyIDSupported,280	"syz_mount_image":             isSyzMountImageSupported,281	"syz_read_part_table":         isSyzReadPartTableSupported,282	"syz_io_uring_submit":         isSyzIoUringSupported,283	"syz_io_uring_complete":       isSyzIoUringSupported,284	"syz_io_uring_setup":          isSyzIoUringSupported,285	"syz_memcpy_off":              isSyzMemcpySupported,286	"syz_btf_id_by_name":          isBtfVmlinuxSupported,287	"syz_fuse_handle_req":         isSyzFuseSupported,288	"syz_80211_inject_frame":      isWifiEmulationSupported,289	"syz_80211_join_ibss":         isWifiEmulationSupported,290	"syz_usbip_server_init":       isSyzUsbIPSupported,291	"syz_clone":                   alwaysSupported,292	"syz_clone3":                  alwaysSupported,293}294func isSupportedSyzkall(c *prog.Syscall, target *prog.Target, sandbox string) (bool, string) {295	sysTarget := targets.Get(target.OS, target.Arch)296	for _, depCall := range sysTarget.PseudoSyscallDeps[c.CallName] {297		if ok, reason := isSupportedSyscallName(depCall, target); !ok {298			return ok, reason299		}300	}301	if strings.HasPrefix(c.CallName, "syz_ext_") {302		// Non-mainline pseudo-syscalls in executor/common_ext.h can't have the checking function303		// and are assumed to be unconditionally supported.304		if syzkallSupport[c.CallName] != nil {305			panic("syz_ext_ prefix is reserved for non-mainline pseudo-syscalls")306		}307		return true, ""308	}309	if isSupported, ok := syzkallSupport[c.CallName]; ok {310		return isSupported(c, target, sandbox)311	}...

isSupportedSyscallName

Using AI Code Generation

1import (2func main() {3	fmt.Println(syscall.IsSupportedSyscallName("Read"))4	fmt.Println(syscall.IsSupportedSyscallName("Read1"))5}6Related Posts: Golang | syscall.Getpagesize() method

isSupportedSyscallName

Using AI Code Generation

1import (2func main() {3	fmt.Println(host.IsSupportedSyscallName("chdir"))4	fmt.Println(host.IsSupportedSyscallName("chroot"))5	fmt.Println(host.IsSupportedSyscallName("chown"))6	fmt.Println(host.IsSupportedSyscallName("chmod"))

isSupportedSyscallName

Using AI Code Generation

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

isSupportedSyscallName

Using AI Code Generation

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

isSupportedSyscallName

Using AI Code Generation

1import (2func main() {3	fmt.Println(host.IsSupportedSyscallName(name))4}5Recommended Posts: Go | Getppid() function6Go | Getpgrp() function7Go | Getpgid() function8Go | Getpwnam() function9Go | Getpwuid() function10Go | Getgrnam() function11Go | Getgrgid() function12Go | Getgroups() function13Go | Getrlimit() function14Go | Getrusage() function15Go | Gettimeofday() function16Go | Getuid() function17Go | Geteuid() function18Go | Getgid() function19Go | Getegid() function20Go | Getpid() function21Go | Getppid() function22Go | Getpgrp() function23Go | Getpgid() function24Go | Getpwnam() function25Go | Getpwuid() function26Go | Getgrnam() function27Go | Getgrgid() function28Go | Getgroups() function29Go | Getrlimit() function30Go | Getrusage() function31Go | Gettimeofday() function32Go | Getuid() function33Go | Geteuid() function34Go | Getgid() function35Go | Getegid() function36Go | Getpid() function37Go | Getppid() function38Go | Getpgrp() function39Go | Getpgid() function40Go | Getpwnam() function41Go | Getpwuid() function42Go | Getgrnam() function43Go | Getgrgid() function44Go | Getgroups() function45Go | Getrlimit() function46Go | Getrusage() function47Go | Gettimeofday() function48Go | Getuid() function49Go | Geteuid() function50Go | Getgid() function51Go | Getegid() function52Go | Getpid() function53Go | Getppid() function54Go | Getpgrp() function55Go | Getpgid() function56Go | Getpwnam() function

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.