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syscall_windows_test.go
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// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package windows_test
import (
"bufio"
"bytes"
"debug/pe"
"errors"
"fmt"
"io/ioutil"
"math/rand"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"syscall"
"testing"
"time"
"unsafe"
"golang.org/x/sys/internal/unsafeheader"
"golang.org/x/sys/windows"
)
func TestWin32finddata(t *testing.T) {
dir, err := ioutil.TempDir("", "go-build")
if err != nil {
t.Fatalf("failed to create temp directory: %v", err)
}
defer os.RemoveAll(dir)
path := filepath.Join(dir, "long_name.and_extension")
f, err := os.Create(path)
if err != nil {
t.Fatalf("failed to create %v: %v", path, err)
}
f.Close()
type X struct {
fd windows.Win32finddata
got byte
pad [10]byte // to protect ourselves
}
var want byte = 2 // it is unlikely to have this character in the filename
x := X{got: want}
pathp, _ := windows.UTF16PtrFromString(path)
h, err := windows.FindFirstFile(pathp, &(x.fd))
if err != nil {
t.Fatalf("FindFirstFile failed: %v", err)
}
err = windows.FindClose(h)
if err != nil {
t.Fatalf("FindClose failed: %v", err)
}
if x.got != want {
t.Fatalf("memory corruption: want=%d got=%d", want, x.got)
}
}
func TestFormatMessage(t *testing.T) {
dll := windows.MustLoadDLL("netevent.dll")
const TITLE_SC_MESSAGE_BOX uint32 = 0xC0001B75
const flags uint32 = syscall.FORMAT_MESSAGE_FROM_HMODULE | syscall.FORMAT_MESSAGE_ARGUMENT_ARRAY | syscall.FORMAT_MESSAGE_IGNORE_INSERTS
buf := make([]uint16, 300)
_, err := windows.FormatMessage(flags, uintptr(dll.Handle), TITLE_SC_MESSAGE_BOX, 0, buf, nil)
if err != nil {
t.Fatalf("FormatMessage for handle=%x and errno=%x failed: %v", dll.Handle, TITLE_SC_MESSAGE_BOX, err)
}
}
func abort(funcname string, err error) {
panic(funcname + " failed: " + err.Error())
}
func ExampleLoadLibrary() {
h, err := windows.LoadLibrary("kernel32.dll")
if err != nil {
abort("LoadLibrary", err)
}
defer windows.FreeLibrary(h)
proc, err := windows.GetProcAddress(h, "GetVersion")
if err != nil {
abort("GetProcAddress", err)
}
r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0, 0)
major := byte(r)
minor := uint8(r >> 8)
build := uint16(r >> 16)
print("windows version ", major, ".", minor, " (Build ", build, ")\n")
}
func TestTOKEN_ALL_ACCESS(t *testing.T) {
if windows.TOKEN_ALL_ACCESS != 0xF01FF {
t.Errorf("TOKEN_ALL_ACCESS = %x, want 0xF01FF", windows.TOKEN_ALL_ACCESS)
}
}
func TestCreateWellKnownSid(t *testing.T) {
sid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid)
if err != nil {
t.Fatalf("Unable to create well known sid for administrators: %v", err)
}
if got, want := sid.String(), "S-1-5-32-544"; got != want {
t.Fatalf("Builtin Administrators SID = %s, want %s", got, want)
}
}
func TestPseudoTokens(t *testing.T) {
version, err := windows.GetVersion()
if err != nil {
t.Fatal(err)
}
if ((version&0xffff)>>8)|((version&0xff)<<8) < 0x0602 {
return
}
realProcessToken, err := windows.OpenCurrentProcessToken()
if err != nil {
t.Fatal(err)
}
defer realProcessToken.Close()
realProcessUser, err := realProcessToken.GetTokenUser()
if err != nil {
t.Fatal(err)
}
pseudoProcessToken := windows.GetCurrentProcessToken()
pseudoProcessUser, err := pseudoProcessToken.GetTokenUser()
if err != nil {
t.Fatal(err)
}
if !windows.EqualSid(realProcessUser.User.Sid, pseudoProcessUser.User.Sid) {
t.Fatal("The real process token does not have the same as the pseudo process token")
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
err = windows.RevertToSelf()
if err != nil {
t.Fatal(err)
}
pseudoThreadToken := windows.GetCurrentThreadToken()
_, err = pseudoThreadToken.GetTokenUser()
if err != windows.ERROR_NO_TOKEN {
t.Fatal("Expected an empty thread token")
}
pseudoThreadEffectiveToken := windows.GetCurrentThreadEffectiveToken()
pseudoThreadEffectiveUser, err := pseudoThreadEffectiveToken.GetTokenUser()
if err != nil {
t.Fatal(nil)
}
if !windows.EqualSid(realProcessUser.User.Sid, pseudoThreadEffectiveUser.User.Sid) {
t.Fatal("The real process token does not have the same as the pseudo thread effective token, even though we aren't impersonating")
}
err = windows.ImpersonateSelf(windows.SecurityImpersonation)
if err != nil {
t.Fatal(err)
}
defer windows.RevertToSelf()
pseudoThreadUser, err := pseudoThreadToken.GetTokenUser()
if err != nil {
t.Fatal(err)
}
if !windows.EqualSid(realProcessUser.User.Sid, pseudoThreadUser.User.Sid) {
t.Fatal("The real process token does not have the same as the pseudo thread token after impersonating self")
}
}
func TestGUID(t *testing.T) {
guid, err := windows.GenerateGUID()
if err != nil {
t.Fatal(err)
}
if guid.Data1 == 0 && guid.Data2 == 0 && guid.Data3 == 0 && guid.Data4 == [8]byte{} {
t.Fatal("Got an all zero GUID, which is overwhelmingly unlikely")
}
want := fmt.Sprintf("{%08X-%04X-%04X-%04X-%012X}", guid.Data1, guid.Data2, guid.Data3, guid.Data4[:2], guid.Data4[2:])
got := guid.String()
if got != want {
t.Fatalf("String = %q; want %q", got, want)
}
guid2, err := windows.GUIDFromString(got)
if err != nil {
t.Fatal(err)
}
if guid2 != guid {
t.Fatalf("Did not parse string back to original GUID = %q; want %q", guid2, guid)
}
_, err = windows.GUIDFromString("not-a-real-guid")
if err != syscall.Errno(windows.CO_E_CLASSSTRING) {
t.Fatalf("Bad GUID string error = %v; want CO_E_CLASSSTRING", err)
}
}
func TestKnownFolderPath(t *testing.T) {
token, err := windows.OpenCurrentProcessToken()
if err != nil {
t.Fatal(err)
}
defer token.Close()
profileDir, err := token.GetUserProfileDirectory()
if err != nil {
t.Fatal(err)
}
want := filepath.Join(profileDir, "Desktop")
got, err := windows.KnownFolderPath(windows.FOLDERID_Desktop, windows.KF_FLAG_DEFAULT)
if err != nil {
t.Fatal(err)
}
if want != got {
t.Fatalf("Path = %q; want %q", got, want)
}
}
func TestRtlGetVersion(t *testing.T) {
version := windows.RtlGetVersion()
major, minor, build := windows.RtlGetNtVersionNumbers()
// Go is not explictly added to the application compatibility database, so
// these two functions should return the same thing.
if version.MajorVersion != major || version.MinorVersion != minor || version.BuildNumber != build {
t.Fatalf("%d.%d.%d != %d.%d.%d", version.MajorVersion, version.MinorVersion, version.BuildNumber, major, minor, build)
}
}
func TestGetNamedSecurityInfo(t *testing.T) {
path, err := windows.GetSystemDirectory()
if err != nil {
t.Fatal(err)
}
sd, err := windows.GetNamedSecurityInfo(path, windows.SE_FILE_OBJECT, windows.OWNER_SECURITY_INFORMATION)
if err != nil {
t.Fatal(err)
}
if !sd.IsValid() {
t.Fatal("Invalid security descriptor")
}
sdOwner, _, err := sd.Owner()
if err != nil {
t.Fatal(err)
}
if !sdOwner.IsValid() {
t.Fatal("Invalid security descriptor owner")
}
}
func TestGetSecurityInfo(t *testing.T) {
sd, err := windows.GetSecurityInfo(windows.CurrentProcess(), windows.SE_KERNEL_OBJECT, windows.DACL_SECURITY_INFORMATION)
if err != nil {
t.Fatal(err)
}
if !sd.IsValid() {
t.Fatal("Invalid security descriptor")
}
sdStr := sd.String()
if !strings.HasPrefix(sdStr, "D:(A;") {
t.Fatalf("DACL = %q; want D:(A;...", sdStr)
}
}
func TestSddlConversion(t *testing.T) {
sd, err := windows.SecurityDescriptorFromString("O:BA")
if err != nil {
t.Fatal(err)
}
if !sd.IsValid() {
t.Fatal("Invalid security descriptor")
}
sdOwner, _, err := sd.Owner()
if err != nil {
t.Fatal(err)
}
if !sdOwner.IsValid() {
t.Fatal("Invalid security descriptor owner")
}
if !sdOwner.IsWellKnown(windows.WinBuiltinAdministratorsSid) {
t.Fatalf("Owner = %q; want S-1-5-32-544", sdOwner)
}
}
func TestBuildSecurityDescriptor(t *testing.T) {
const want = "O:SYD:(A;;GA;;;BA)"
adminSid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid)
if err != nil {
t.Fatal(err)
}
systemSid, err := windows.CreateWellKnownSid(windows.WinLocalSystemSid)
if err != nil {
t.Fatal(err)
}
access := []windows.EXPLICIT_ACCESS{{
AccessPermissions: windows.GENERIC_ALL,
AccessMode: windows.GRANT_ACCESS,
Trustee: windows.TRUSTEE{
TrusteeForm: windows.TRUSTEE_IS_SID,
TrusteeType: windows.TRUSTEE_IS_GROUP,
TrusteeValue: windows.TrusteeValueFromSID(adminSid),
},
}}
owner := &windows.TRUSTEE{
TrusteeForm: windows.TRUSTEE_IS_SID,
TrusteeType: windows.TRUSTEE_IS_USER,
TrusteeValue: windows.TrusteeValueFromSID(systemSid),
}
sd, err := windows.BuildSecurityDescriptor(owner, nil, access, nil, nil)
if err != nil {
t.Fatal(err)
}
sd, err = sd.ToAbsolute()
if err != nil {
t.Fatal(err)
}
err = sd.SetSACL(nil, false, false)
if err != nil {
t.Fatal(err)
}
if got := sd.String(); got != want {
t.Fatalf("SD = %q; want %q", got, want)
}
sd, err = sd.ToSelfRelative()
if err != nil {
t.Fatal(err)
}
if got := sd.String(); got != want {
t.Fatalf("SD = %q; want %q", got, want)
}
sd, err = windows.NewSecurityDescriptor()
if err != nil {
t.Fatal(err)
}
acl, err := windows.ACLFromEntries(access, nil)
if err != nil {
t.Fatal(err)
}
err = sd.SetDACL(acl, true, false)
if err != nil {
t.Fatal(err)
}
err = sd.SetOwner(systemSid, false)
if err != nil {
t.Fatal(err)
}
if got := sd.String(); got != want {
t.Fatalf("SD = %q; want %q", got, want)
}
sd, err = sd.ToSelfRelative()
if err != nil {
t.Fatal(err)
}
if got := sd.String(); got != want {
t.Fatalf("SD = %q; want %q", got, want)
}
}
func TestGetDiskFreeSpaceEx(t *testing.T) {
cwd, err := windows.UTF16PtrFromString(".")
if err != nil {
t.Fatalf(`failed to call UTF16PtrFromString("."): %v`, err)
}
var freeBytesAvailableToCaller, totalNumberOfBytes, totalNumberOfFreeBytes uint64
if err := windows.GetDiskFreeSpaceEx(cwd, &freeBytesAvailableToCaller, &totalNumberOfBytes, &totalNumberOfFreeBytes); err != nil {
t.Fatalf("failed to call GetDiskFreeSpaceEx: %v", err)
}
if freeBytesAvailableToCaller == 0 {
t.Errorf("freeBytesAvailableToCaller: got 0; want > 0")
}
if totalNumberOfBytes == 0 {
t.Errorf("totalNumberOfBytes: got 0; want > 0")
}
if totalNumberOfFreeBytes == 0 {
t.Errorf("totalNumberOfFreeBytes: got 0; want > 0")
}
}
func TestGetPreferredUILanguages(t *testing.T) {
tab := map[string]func(flags uint32) ([]string, error){
"GetProcessPreferredUILanguages": windows.GetProcessPreferredUILanguages,
"GetThreadPreferredUILanguages": windows.GetThreadPreferredUILanguages,
"GetUserPreferredUILanguages": windows.GetUserPreferredUILanguages,
"GetSystemPreferredUILanguages": windows.GetSystemPreferredUILanguages,
}
for fName, f := range tab {
lang, err := f(windows.MUI_LANGUAGE_ID)
if err != nil {
t.Errorf(`failed to call %v(MUI_LANGUAGE_ID): %v`, fName, err)
}
for _, l := range lang {
_, err := strconv.ParseUint(l, 16, 16)
if err != nil {
t.Errorf(`%v(MUI_LANGUAGE_ID) returned unexpected LANGID: %v`, fName, l)
}
}
lang, err = f(windows.MUI_LANGUAGE_NAME)
if err != nil {
t.Errorf(`failed to call %v(MUI_LANGUAGE_NAME): %v`, fName, err)
}
}
}
func TestProcessWorkingSetSizeEx(t *testing.T) {
// Grab a handle to the current process
hProcess := windows.CurrentProcess()
// Allocate memory to store the result of the query
var minimumWorkingSetSize, maximumWorkingSetSize uintptr
// Make the system-call
var flag uint32
windows.GetProcessWorkingSetSizeEx(hProcess, &minimumWorkingSetSize, &maximumWorkingSetSize, &flag)
// Set the new limits to the current ones
if err := windows.SetProcessWorkingSetSizeEx(hProcess, minimumWorkingSetSize, maximumWorkingSetSize, flag); err != nil {
t.Error(err)
}
}
func TestJobObjectInfo(t *testing.T) {
jo, err := windows.CreateJobObject(nil, nil)
if err != nil {
t.Fatalf("CreateJobObject failed: %v", err)
}
defer windows.CloseHandle(jo)
var info windows.JOBOBJECT_EXTENDED_LIMIT_INFORMATION
err = windows.QueryInformationJobObject(jo, windows.JobObjectExtendedLimitInformation,
uintptr(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info)), nil)
if err != nil {
t.Fatalf("QueryInformationJobObject failed: %v", err)
}
const wantMemLimit = 4 * 1024
info.BasicLimitInformation.LimitFlags |= windows.JOB_OBJECT_LIMIT_PROCESS_MEMORY
info.ProcessMemoryLimit = wantMemLimit
_, err = windows.SetInformationJobObject(jo, windows.JobObjectExtendedLimitInformation,
uintptr(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info)))
if err != nil {
t.Fatalf("SetInformationJobObject failed: %v", err)
}
err = windows.QueryInformationJobObject(jo, windows.JobObjectExtendedLimitInformation,
uintptr(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info)), nil)
if err != nil {
t.Fatalf("QueryInformationJobObject failed: %v", err)
}
if have := info.ProcessMemoryLimit; wantMemLimit != have {
t.Errorf("ProcessMemoryLimit is wrong: want %v have %v", wantMemLimit, have)
}
}
func TestIsWow64Process2(t *testing.T) {
var processMachine, nativeMachine uint16
err := windows.IsWow64Process2(windows.CurrentProcess(), &processMachine, &nativeMachine)
if errors.Is(err, windows.ERROR_PROC_NOT_FOUND) {
maj, min, build := windows.RtlGetNtVersionNumbers()
if maj < 10 || (maj == 10 && min == 0 && build < 17763) {
t.Skip("not available on older versions of Windows")
return
}
}
if err != nil {
t.Fatalf("IsWow64Process2 failed: %v", err)
}
if processMachine == pe.IMAGE_FILE_MACHINE_UNKNOWN {
processMachine = nativeMachine
}
switch {
case processMachine == pe.IMAGE_FILE_MACHINE_AMD64 && runtime.GOARCH == "amd64":
case processMachine == pe.IMAGE_FILE_MACHINE_I386 && runtime.GOARCH == "386":
case processMachine == pe.IMAGE_FILE_MACHINE_ARMNT && runtime.GOARCH == "arm":
case processMachine == pe.IMAGE_FILE_MACHINE_ARM64 && runtime.GOARCH == "arm64":
default:
t.Errorf("IsWow64Process2 is wrong: want %v have %v", runtime.GOARCH, processMachine)
}
}
func TestNTStatusString(t *testing.T) {
want := "The name limit for the local computer network adapter card was exceeded."
got := windows.STATUS_TOO_MANY_NAMES.Error()
if want != got {
t.Errorf("NTStatus.Error did not return an expected error string - want %q; got %q", want, got)
}
}
func TestNTStatusConversion(t *testing.T) {
want := windows.ERROR_TOO_MANY_NAMES
got := windows.STATUS_TOO_MANY_NAMES.Errno()
if want != got {
t.Errorf("NTStatus.Errno = %q (0x%x); want %q (0x%x)", got.Error(), got, want.Error(), want)
}
}
func TestPEBFilePath(t *testing.T) {
peb := windows.RtlGetCurrentPeb()
if peb == nil || peb.Ldr == nil {
t.Error("unable to retrieve PEB with valid Ldr")
}
var entry *windows.LDR_DATA_TABLE_ENTRY
for cur := peb.Ldr.InMemoryOrderModuleList.Flink; cur != &peb.Ldr.InMemoryOrderModuleList; cur = cur.Flink {
e := (*windows.LDR_DATA_TABLE_ENTRY)(unsafe.Pointer(uintptr(unsafe.Pointer(cur)) - unsafe.Offsetof(windows.LDR_DATA_TABLE_ENTRY{}.InMemoryOrderLinks)))
if e.DllBase == peb.ImageBaseAddress {
entry = e
break
}
}
if entry == nil {
t.Error("unable to find Ldr entry for current process")
}
osPath, err := os.Executable()
if err != nil {
t.Errorf("unable to get path to current executable: %v", err)
}
pebPath := entry.FullDllName.String()
if osPath != pebPath {
t.Errorf("peb.Ldr.{entry}.FullDllName = %#q; want %#q", pebPath, osPath)
}
paramPath := peb.ProcessParameters.ImagePathName.String()
if osPath != paramPath {
t.Errorf("peb.ProcessParameters.ImagePathName.{entry}.ImagePathName = %#q; want %#q", paramPath, osPath)
}
osCwd, err := os.Getwd()
if err != nil {
t.Errorf("unable to get working directory: %v", err)
}
osCwd = filepath.Clean(osCwd)
paramCwd := filepath.Clean(peb.ProcessParameters.CurrentDirectory.DosPath.String())
if paramCwd != osCwd {
t.Errorf("peb.ProcessParameters.CurrentDirectory.DosPath = %#q; want %#q", paramCwd, osCwd)
}
}
func TestResourceExtraction(t *testing.T) {
system32, err := windows.GetSystemDirectory()
if err != nil {
t.Errorf("unable to find system32 directory: %v", err)
}
cmd, err := windows.LoadLibrary(filepath.Join(system32, "cmd.exe"))
if err != nil {
t.Errorf("unable to load cmd.exe: %v", err)
}
defer windows.FreeLibrary(cmd)
rsrc, err := windows.FindResource(cmd, windows.CREATEPROCESS_MANIFEST_RESOURCE_ID, windows.RT_MANIFEST)
if err != nil {
t.Errorf("unable to find cmd.exe manifest resource: %v", err)
}
manifest, err := windows.LoadResourceData(cmd, rsrc)
if err != nil {
t.Errorf("unable to load cmd.exe manifest resource data: %v", err)
}
if !bytes.Contains(manifest, []byte("</assembly>")) {
t.Errorf("did not find </assembly> in manifest")
}
}
func TestCommandLineRecomposition(t *testing.T) {
const (
maxCharsPerArg = 35
maxArgsPerTrial = 80
doubleQuoteProb = 4
singleQuoteProb = 1
backSlashProb = 3
spaceProb = 1
trials = 1000
)
randString := func(l int) []rune {
s := make([]rune, l)
for i := range s {
s[i] = rand.Int31()
}
return s
}
mungeString := func(s []rune, char rune, timesInTen int) {
if timesInTen < rand.Intn(10)+1 || len(s) == 0 {
return
}
s[rand.Intn(len(s))] = char
}
argStorage := make([]string, maxArgsPerTrial+1)
for i := 0; i < trials; i++ {
args := argStorage[:rand.Intn(maxArgsPerTrial)+2]
args[0] = "valid-filename-for-arg0"
for j := 1; j < len(args); j++ {
arg := randString(rand.Intn(maxCharsPerArg + 1))
mungeString(arg, '"', doubleQuoteProb)
mungeString(arg, '\'', singleQuoteProb)
mungeString(arg, '\\', backSlashProb)
mungeString(arg, ' ', spaceProb)
args[j] = string(arg)
}
commandLine := windows.ComposeCommandLine(args)
decomposedArgs, err := windows.DecomposeCommandLine(commandLine)
if err != nil {
t.Errorf("Unable to decompose %#q made from %v: %v", commandLine, args, err)
continue
}
if len(decomposedArgs) != len(args) {
t.Errorf("Incorrect decomposition length from %v to %#q to %v", args, commandLine, decomposedArgs)
continue
}
badMatches := make([]int, 0, len(args))
for i := range args {
if args[i] != decomposedArgs[i] {
badMatches = append(badMatches, i)
}
}
if len(badMatches) != 0 {
t.Errorf("Incorrect decomposition at indices %v from %v to %#q to %v", badMatches, args, commandLine, decomposedArgs)
continue
}
}
}
func TestWinVerifyTrust(t *testing.T) {
evsignedfile := `.\testdata\ev-signed-file.exe`
evsignedfile16, err := windows.UTF16PtrFromString(evsignedfile)
if err != nil {
t.Fatalf("unable to get utf16 of %s: %v", evsignedfile, err)
}
data := &windows.WinTrustData{
Size: uint32(unsafe.Sizeof(windows.WinTrustData{})),
UIChoice: windows.WTD_UI_NONE,
RevocationChecks: windows.WTD_REVOKE_NONE, // No revocation checking, in case the tests don't have network connectivity.
UnionChoice: windows.WTD_CHOICE_FILE,
StateAction: windows.WTD_STATEACTION_VERIFY,
FileOrCatalogOrBlobOrSgnrOrCert: unsafe.Pointer(&windows.WinTrustFileInfo{
Size: uint32(unsafe.Sizeof(windows.WinTrustFileInfo{})),
FilePath: evsignedfile16,
}),
}
verifyErr := windows.WinVerifyTrustEx(windows.InvalidHWND, &windows.WINTRUST_ACTION_GENERIC_VERIFY_V2, data)
data.StateAction = windows.WTD_STATEACTION_CLOSE
closeErr := windows.WinVerifyTrustEx(windows.InvalidHWND, &windows.WINTRUST_ACTION_GENERIC_VERIFY_V2, data)
if verifyErr != nil {
t.Errorf("%s did not verify: %v", evsignedfile, verifyErr)
}
if closeErr != nil {
t.Errorf("unable to free verification resources: %v", closeErr)
}
// Now that we've verified the legitimate file verifies, let's corrupt it and see if it correctly fails.
dir, err := ioutil.TempDir("", "go-build")
if err != nil {
t.Fatalf("failed to create temp directory: %v", err)
}
defer os.RemoveAll(dir)
corruptedEvsignedfile := filepath.Join(dir, "corrupted-file")
evsignedfileBytes, err := ioutil.ReadFile(evsignedfile)
if err != nil {
t.Fatalf("unable to read %s bytes: %v", evsignedfile, err)
}
if len(evsignedfileBytes) > 0 {
evsignedfileBytes[len(evsignedfileBytes)/2-1]++
}
err = ioutil.WriteFile(corruptedEvsignedfile, evsignedfileBytes, 0755)
if err != nil {
t.Fatalf("unable to write corrupted ntoskrnl.exe bytes: %v", err)
}
evsignedfile16, err = windows.UTF16PtrFromString(corruptedEvsignedfile)
if err != nil {
t.Fatalf("unable to get utf16 of ntoskrnl.exe: %v", err)
}
data = &windows.WinTrustData{
Size: uint32(unsafe.Sizeof(windows.WinTrustData{})),
UIChoice: windows.WTD_UI_NONE,
RevocationChecks: windows.WTD_REVOKE_NONE, // No revocation checking, in case the tests don't have network connectivity.
UnionChoice: windows.WTD_CHOICE_FILE,
StateAction: windows.WTD_STATEACTION_VERIFY,
FileOrCatalogOrBlobOrSgnrOrCert: unsafe.Pointer(&windows.WinTrustFileInfo{
Size: uint32(unsafe.Sizeof(windows.WinTrustFileInfo{})),
FilePath: evsignedfile16,
}),
}
verifyErr = windows.WinVerifyTrustEx(windows.InvalidHWND, &windows.WINTRUST_ACTION_GENERIC_VERIFY_V2, data)
data.StateAction = windows.WTD_STATEACTION_CLOSE
closeErr = windows.WinVerifyTrustEx(windows.InvalidHWND, &windows.WINTRUST_ACTION_GENERIC_VERIFY_V2, data)
if verifyErr != windows.Errno(windows.TRUST_E_BAD_DIGEST) {
t.Errorf("%s did not fail to verify as expected: %v", corruptedEvsignedfile, verifyErr)
}
if closeErr != nil {
t.Errorf("unable to free verification resources: %v", closeErr)
}
}
func TestProcessModules(t *testing.T) {
process, err := windows.GetCurrentProcess()
if err != nil {
t.Fatalf("unable to get current process: %v", err)
}
// NB: Assume that we're always the first module. This technically isn't documented anywhere (that I could find), but seems to always hold.
var module windows.Handle
var cbNeeded uint32
err = windows.EnumProcessModules(process, &module, uint32(unsafe.Sizeof(module)), &cbNeeded)
if err != nil {
t.Fatalf("EnumProcessModules failed: %v", err)
}
var moduleEx windows.Handle
err = windows.EnumProcessModulesEx(process, &moduleEx, uint32(unsafe.Sizeof(moduleEx)), &cbNeeded, windows.LIST_MODULES_DEFAULT)
if err != nil {
t.Fatalf("EnumProcessModulesEx failed: %v", err)
}
if module != moduleEx {
t.Fatalf("module from EnumProcessModules does not match EnumProcessModulesEx: %v != %v", module, moduleEx)
}
exePath, err := os.Executable()
if err != nil {
t.Fatalf("unable to get current executable path: %v", err)
}
modulePathUTF16 := make([]uint16, len(exePath)+1)
err = windows.GetModuleFileNameEx(process, module, &modulePathUTF16[0], uint32(len(modulePathUTF16)))
if err != nil {
t.Fatalf("GetModuleFileNameEx failed: %v", err)
}
modulePath := windows.UTF16ToString(modulePathUTF16)
if modulePath != exePath {
t.Fatalf("module does not match executable for GetModuleFileNameEx: %s != %s", modulePath, exePath)
}
err = windows.GetModuleBaseName(process, module, &modulePathUTF16[0], uint32(len(modulePathUTF16)))
if err != nil {
t.Fatalf("GetModuleBaseName failed: %v", err)
}
modulePath = windows.UTF16ToString(modulePathUTF16)
baseExePath := filepath.Base(exePath)
if modulePath != baseExePath {
t.Fatalf("module does not match executable for GetModuleBaseName: %s != %s", modulePath, baseExePath)
}
var moduleInfo windows.ModuleInfo
err = windows.GetModuleInformation(process, module, &moduleInfo, uint32(unsafe.Sizeof(moduleInfo)))
if err != nil {
t.Fatalf("GetModuleInformation failed: %v", err)
}
peFile, err := pe.Open(exePath)
if err != nil {
t.Fatalf("unable to open current executable: %v", err)
}
defer peFile.Close()
var peSizeOfImage uint32
switch runtime.GOARCH {
case "amd64", "arm64":
peSizeOfImage = peFile.OptionalHeader.(*pe.OptionalHeader64).SizeOfImage
case "386", "arm":
peSizeOfImage = peFile.OptionalHeader.(*pe.OptionalHeader32).SizeOfImage
default:
t.Fatalf("unable to test GetModuleInformation on arch %v", runtime.GOARCH)
}
if moduleInfo.SizeOfImage != peSizeOfImage {
t.Fatalf("module size does not match executable: %v != %v", moduleInfo.SizeOfImage, peSizeOfImage)
}
}
func TestQueryWorkingSetEx(t *testing.T) {
var a int
process := windows.CurrentProcess()
information := windows.PSAPI_WORKING_SET_EX_INFORMATION{
VirtualAddress: windows.Pointer(unsafe.Pointer(&a)),
}
infos := []windows.PSAPI_WORKING_SET_EX_INFORMATION{information}
cb := uint32(uintptr(len(infos)) * unsafe.Sizeof(infos[0]))
if err := windows.QueryWorkingSetEx(process, uintptr(unsafe.Pointer(&infos[0])), cb); err != nil {
t.Fatalf("%+v", err)
}
if !infos[0].VirtualAttributes.Valid() {
t.Errorf("memory location not valid")
}
}
func TestReadWriteProcessMemory(t *testing.T) {
testBuffer := []byte{0xBA, 0xAD, 0xF0, 0x0D}
process, err := windows.GetCurrentProcess()
if err != nil {
t.Fatalf("unable to get current process: %v", err)
}
buffer := make([]byte, len(testBuffer))
err = windows.ReadProcessMemory(process, uintptr(unsafe.Pointer(&testBuffer[0])), &buffer[0], uintptr(len(buffer)), nil)
if err != nil {
t.Errorf("ReadProcessMemory failed: %v", err)
}
if !bytes.Equal(testBuffer, buffer) {
t.Errorf("bytes read does not match buffer: 0x%X != 0x%X", testBuffer, buffer)
}
buffer = []byte{0xDE, 0xAD, 0xBE, 0xEF}
err = windows.WriteProcessMemory(process, uintptr(unsafe.Pointer(&testBuffer[0])), &buffer[0], uintptr(len(buffer)), nil)
if err != nil {
t.Errorf("WriteProcessMemory failed: %v", err)
}
if !bytes.Equal(testBuffer, buffer) {
t.Errorf("bytes written does not match buffer: 0x%X != 0x%X", testBuffer, buffer)
}
}
func TestSystemModuleVersions(t *testing.T) {
var modules []windows.RTL_PROCESS_MODULE_INFORMATION
for bufferSize := uint32(128 * 1024); ; {
moduleBuffer := make([]byte, bufferSize)
err := windows.NtQuerySystemInformation(windows.SystemModuleInformation, unsafe.Pointer(&moduleBuffer[0]), bufferSize, &bufferSize)
switch err {
case windows.STATUS_INFO_LENGTH_MISMATCH:
continue
case nil:
break
default:
t.Error(err)
return
}
mods := (*windows.RTL_PROCESS_MODULES)(unsafe.Pointer(&moduleBuffer[0]))
hdr := (*unsafeheader.Slice)(unsafe.Pointer(&modules))
hdr.Data = unsafe.Pointer(&mods.Modules[0])
hdr.Len = int(mods.NumberOfModules)
hdr.Cap = int(mods.NumberOfModules)
break
}
for i := range modules {
moduleName := windows.ByteSliceToString(modules[i].FullPathName[modules[i].OffsetToFileName:])
driverPath := `\\?\GLOBALROOT` + windows.ByteSliceToString(modules[i].FullPathName[:])
var zero windows.Handle
infoSize, err := windows.GetFileVersionInfoSize(driverPath, &zero)
if err != nil {
if err != windows.ERROR_FILE_NOT_FOUND {
t.Error(err)
}
continue
}
versionInfo := make([]byte, infoSize)
err = windows.GetFileVersionInfo(driverPath, 0, infoSize, unsafe.Pointer(&versionInfo[0]))
if err != nil && err != windows.ERROR_FILE_NOT_FOUND {
t.Error(err)
continue
}
var fixedInfo *windows.VS_FIXEDFILEINFO
fixedInfoLen := uint32(unsafe.Sizeof(*fixedInfo))
err = windows.VerQueryValue(unsafe.Pointer(&versionInfo[0]), `\`, (unsafe.Pointer)(&fixedInfo), &fixedInfoLen)
if err != nil {
t.Error(err)
continue
}
t.Logf("%s: v%d.%d.%d.%d", moduleName,
(fixedInfo.FileVersionMS>>16)&0xff,
(fixedInfo.FileVersionMS>>0)&0xff,
(fixedInfo.FileVersionLS>>16)&0xff,
(fixedInfo.FileVersionLS>>0)&0xff)
}
}
type fileRenameInformation struct {
ReplaceIfExists uint32
RootDirectory windows.Handle
FileNameLength uint32
FileName [1]uint16
}
func TestNtCreateFileAndNtSetInformationFile(t *testing.T) {
var iosb windows.IO_STATUS_BLOCK
var allocSize int64 = 0
// Open test directory with NtCreateFile.
testDirPath := t.TempDir()
objectName, err := windows.NewNTUnicodeString("\\??\\" + testDirPath)
if err != nil {
t.Fatal(err)
}
oa := &windows.OBJECT_ATTRIBUTES{
ObjectName: objectName,
}
oa.Length = uint32(unsafe.Sizeof(*oa))
var testDirHandle windows.Handle
err = windows.NtCreateFile(&testDirHandle, windows.FILE_GENERIC_READ|windows.FILE_GENERIC_WRITE, oa, &iosb,
&allocSize, 0, windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE|windows.FILE_SHARE_DELETE, windows.FILE_OPEN,
windows.FILE_DIRECTORY_FILE, 0, 0)
if err != nil {
t.Fatalf("NtCreateFile(%v) failed: %v", testDirPath, err)
}
defer windows.CloseHandle(testDirHandle)
// Create a file in test directory with NtCreateFile.
fileName := "filename"
filePath := filepath.Join(testDirPath, fileName)
objectName, err = windows.NewNTUnicodeString(fileName)
if err != nil {
t.Fatal(err)
}
oa.RootDirectory = testDirHandle
oa.ObjectName = objectName
var fileHandle windows.Handle
err = windows.NtCreateFile(&fileHandle, windows.FILE_GENERIC_READ|windows.FILE_GENERIC_WRITE|windows.DELETE, oa, &iosb,
&allocSize, 0, windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE|windows.FILE_SHARE_DELETE, windows.FILE_CREATE,
0, 0, 0)
if err != nil {
t.Fatalf("NtCreateFile(%v) failed: %v", filePath, err)
}
defer windows.CloseHandle(fileHandle)
_, err = os.Stat(filePath)
if err != nil {
t.Fatalf("cannot stat file created with NtCreatefile: %v", err)
}
// Rename file with NtSetInformationFile.
newName := "newname"
newPath := filepath.Join(testDirPath, newName)
newNameUTF16, err := windows.UTF16FromString(newName)
if err != nil {
t.Fatal(err)
}
fileNameLen := len(newNameUTF16)*2 - 2
var dummyFileRenameInfo fileRenameInformation
bufferSize := int(unsafe.Offsetof(dummyFileRenameInfo.FileName)) + fileNameLen
buffer := make([]byte, bufferSize)
typedBufferPtr := (*fileRenameInformation)(unsafe.Pointer(&buffer[0]))
typedBufferPtr.ReplaceIfExists = windows.FILE_RENAME_REPLACE_IF_EXISTS | windows.FILE_RENAME_POSIX_SEMANTICS
typedBufferPtr.FileNameLength = uint32(fileNameLen)
copy((*[windows.MAX_LONG_PATH]uint16)(unsafe.Pointer(&typedBufferPtr.FileName[0]))[:fileNameLen/2:fileNameLen/2], newNameUTF16)
err = windows.NtSetInformationFile(fileHandle, &iosb, &buffer[0], uint32(bufferSize), windows.FileRenameInformation)
if err != nil {
t.Fatalf("NtSetInformationFile(%v) failed: %v", newPath, err)
}
_, err = os.Stat(newPath)
if err != nil {
t.Fatalf("cannot stat rename target %v: %v", newPath, err)
}
}
var deviceClassNetGUID = &windows.GUID{0x4d36e972, 0xe325, 0x11ce, [8]byte{0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18}}
var deviceInterfaceNetGUID = &windows.GUID{0xcac88484, 0x7515, 0x4c03, [8]byte{0x82, 0xe6, 0x71, 0xa8, 0x7a, 0xba, 0xc3, 0x61}}
func TestListLoadedNetworkDevices(t *testing.T) {
devInfo, err := windows.SetupDiGetClassDevsEx(deviceClassNetGUID, "", 0, windows.DIGCF_PRESENT, 0, "")
if err != nil {
t.Fatal(err)
}
defer devInfo.Close()
for i := 0; ; i++ {
devInfoData, err := devInfo.EnumDeviceInfo(i)
if err != nil {
if err == windows.ERROR_NO_MORE_ITEMS {
break
}
continue
}
friendlyName, err := devInfo.DeviceRegistryProperty(devInfoData, windows.SPDRP_DEVICEDESC)
if err != nil {
t.Fatal(err)
}
var status, problemCode uint32
err = windows.CM_Get_DevNode_Status(&status, &problemCode, devInfoData.DevInst, 0)
if err != nil || (status&windows.DN_DRIVER_LOADED|windows.DN_STARTED) != windows.DN_DRIVER_LOADED|windows.DN_STARTED {
continue
}
instanceId, err := devInfo.DeviceInstanceID(devInfoData)
if err != nil {
t.Fatal(err)
}
interfaces, err := windows.CM_Get_Device_Interface_List(instanceId, deviceInterfaceNetGUID, windows.CM_GET_DEVICE_INTERFACE_LIST_PRESENT)
if err != nil || len(interfaces) == 0 {
continue
}
t.Logf("%s - %s", friendlyName, interfaces[0])
}
}
func TestListWireGuardDrivers(t *testing.T) {
devInfo, err := windows.SetupDiCreateDeviceInfoListEx(deviceClassNetGUID, 0, "")
if err != nil {
t.Fatal(err)
}
defer devInfo.Close()
devInfoData, err := devInfo.CreateDeviceInfo("WireGuard", deviceClassNetGUID, "", 0, windows.DICD_GENERATE_ID)
if err != nil {
t.Fatal(err)
}