winpipe: use x/sys/windows instead of syscall
This commit is contained in:
Jason A. Donenfeld
parent
70f6c42556
commit
01f8ef4e84
@ -8,6 +8,8 @@ package ipc
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import (
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"net"
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"golang.org/x/sys/windows"
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"golang.zx2c4.com/wireguard/ipc/winpipe"
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)
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@ -47,8 +49,16 @@ func (l *UAPIListener) Addr() net.Addr {
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return l.listener.Addr()
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}
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/* SDDL_DEVOBJ_SYS_ALL from the WDK */
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var UAPISecurityDescriptor = "O:SYD:P(A;;GA;;;SY)"
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var UAPISecurityDescriptor *windows.SECURITY_DESCRIPTOR
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func init() {
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var err error
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/* SDDL_DEVOBJ_SYS_ALL from the WDK */
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UAPISecurityDescriptor, err = windows.SecurityDescriptorFromString("O:SYD:P(A;;GA;;;SY)")
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if err != nil {
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panic(err)
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}
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}
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func UAPIListen(name string) (net.Listener, error) {
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config := winpipe.PipeConfig{
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@ -13,15 +13,16 @@ import (
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"runtime"
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"sync"
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"sync/atomic"
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"syscall"
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"time"
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"golang.org/x/sys/windows"
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)
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//sys cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) = CancelIoEx
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//sys createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) = CreateIoCompletionPort
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//sys getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) = GetQueuedCompletionStatus
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//sys setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) = SetFileCompletionNotificationModes
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//sys wsaGetOverlappedResult(h syscall.Handle, o *syscall.Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult
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//sys cancelIoEx(file windows.Handle, o *windows.Overlapped) (err error) = CancelIoEx
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//sys createIoCompletionPort(file windows.Handle, port windows.Handle, key uintptr, threadCount uint32) (newport windows.Handle, err error) = CreateIoCompletionPort
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//sys getQueuedCompletionStatus(port windows.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) = GetQueuedCompletionStatus
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//sys setFileCompletionNotificationModes(h windows.Handle, flags uint8) (err error) = SetFileCompletionNotificationModes
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//sys wsaGetOverlappedResult(h windows.Handle, o *windows.Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult
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type atomicBool int32
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@ -55,7 +56,7 @@ func (e *timeoutError) Temporary() bool { return true }
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type timeoutChan chan struct{}
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var ioInitOnce sync.Once
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var ioCompletionPort syscall.Handle
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var ioCompletionPort windows.Handle
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// ioResult contains the result of an asynchronous IO operation
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type ioResult struct {
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@ -65,12 +66,12 @@ type ioResult struct {
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// ioOperation represents an outstanding asynchronous Win32 IO
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type ioOperation struct {
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o syscall.Overlapped
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o windows.Overlapped
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ch chan ioResult
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}
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func initIo() {
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h, err := createIoCompletionPort(syscall.InvalidHandle, 0, 0, 0xffffffff)
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h, err := createIoCompletionPort(windows.InvalidHandle, 0, 0, 0xffffffff)
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if err != nil {
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panic(err)
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}
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@ -81,7 +82,7 @@ func initIo() {
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// win32File implements Reader, Writer, and Closer on a Win32 handle without blocking in a syscall.
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// It takes ownership of this handle and will close it if it is garbage collected.
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type win32File struct {
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handle syscall.Handle
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handle windows.Handle
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wg sync.WaitGroup
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wgLock sync.RWMutex
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closing atomicBool
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@ -99,7 +100,7 @@ type deadlineHandler struct {
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}
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// makeWin32File makes a new win32File from an existing file handle
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func makeWin32File(h syscall.Handle) (*win32File, error) {
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func makeWin32File(h windows.Handle) (*win32File, error) {
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f := &win32File{handle: h}
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ioInitOnce.Do(initIo)
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_, err := createIoCompletionPort(h, ioCompletionPort, 0, 0xffffffff)
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@ -115,7 +116,7 @@ func makeWin32File(h syscall.Handle) (*win32File, error) {
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return f, nil
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}
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func MakeOpenFile(h syscall.Handle) (io.ReadWriteCloser, error) {
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func MakeOpenFile(h windows.Handle) (io.ReadWriteCloser, error) {
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return makeWin32File(h)
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}
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@ -129,7 +130,7 @@ func (f *win32File) closeHandle() {
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cancelIoEx(f.handle, nil)
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f.wg.Wait()
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// at this point, no new IO can start
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syscall.Close(f.handle)
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windows.Close(f.handle)
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f.handle = 0
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} else {
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f.wgLock.Unlock()
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@ -158,12 +159,12 @@ func (f *win32File) prepareIo() (*ioOperation, error) {
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}
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// ioCompletionProcessor processes completed async IOs forever
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func ioCompletionProcessor(h syscall.Handle) {
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func ioCompletionProcessor(h windows.Handle) {
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for {
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var bytes uint32
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var key uintptr
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var op *ioOperation
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err := getQueuedCompletionStatus(h, &bytes, &key, &op, syscall.INFINITE)
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err := getQueuedCompletionStatus(h, &bytes, &key, &op, windows.INFINITE)
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if op == nil {
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panic(err)
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}
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@ -174,7 +175,7 @@ func ioCompletionProcessor(h syscall.Handle) {
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// asyncIo processes the return value from ReadFile or WriteFile, blocking until
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// the operation has actually completed.
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func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, err error) (int, error) {
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if err != syscall.ERROR_IO_PENDING {
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if err != windows.ERROR_IO_PENDING {
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return int(bytes), err
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}
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@ -193,7 +194,7 @@ func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, er
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select {
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case r = <-c.ch:
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err = r.err
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if err == syscall.ERROR_OPERATION_ABORTED {
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if err == windows.ERROR_OPERATION_ABORTED {
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if f.closing.isSet() {
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err = ErrFileClosed
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}
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@ -206,7 +207,7 @@ func (f *win32File) asyncIo(c *ioOperation, d *deadlineHandler, bytes uint32, er
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cancelIoEx(f.handle, &c.o)
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r = <-c.ch
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err = r.err
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if err == syscall.ERROR_OPERATION_ABORTED {
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if err == windows.ERROR_OPERATION_ABORTED {
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err = ErrTimeout
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}
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}
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@ -231,14 +232,14 @@ func (f *win32File) Read(b []byte) (int, error) {
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}
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var bytes uint32
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err = syscall.ReadFile(f.handle, b, &bytes, &c.o)
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err = windows.ReadFile(f.handle, b, &bytes, &c.o)
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n, err := f.asyncIo(c, &f.readDeadline, bytes, err)
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runtime.KeepAlive(b)
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// Handle EOF conditions.
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if err == nil && n == 0 && len(b) != 0 {
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return 0, io.EOF
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} else if err == syscall.ERROR_BROKEN_PIPE {
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} else if err == windows.ERROR_BROKEN_PIPE {
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return 0, io.EOF
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} else {
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return n, err
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@ -258,7 +259,7 @@ func (f *win32File) Write(b []byte) (int, error) {
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}
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var bytes uint32
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err = syscall.WriteFile(f.handle, b, &bytes, &c.o)
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err = windows.WriteFile(f.handle, b, &bytes, &c.o)
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n, err := f.asyncIo(c, &f.writeDeadline, bytes, err)
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runtime.KeepAlive(b)
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return n, err
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@ -273,7 +274,7 @@ func (f *win32File) SetWriteDeadline(deadline time.Time) error {
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}
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func (f *win32File) Flush() error {
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return syscall.FlushFileBuffers(f.handle)
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return windows.FlushFileBuffers(f.handle)
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}
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func (f *win32File) Fd() uintptr {
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@ -6,4 +6,4 @@
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package winpipe
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//go:generate go run $GOROOT/src/syscall/mksyscall_windows.go -output zsyscall_windows.go pipe.go sd.go file.go
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//go:generate go run $GOROOT/src/syscall/mksyscall_windows.go -output zsyscall_windows.go pipe.go file.go
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@ -16,18 +16,19 @@ import (
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"net"
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"os"
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"runtime"
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"syscall"
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"time"
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"unsafe"
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"golang.org/x/sys/windows"
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)
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//sys connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) = ConnectNamedPipe
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//sys createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error) [failretval==syscall.InvalidHandle] = CreateNamedPipeW
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//sys createFile(name string, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) [failretval==syscall.InvalidHandle] = CreateFileW
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//sys getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) = GetNamedPipeInfo
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//sys getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
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//sys connectNamedPipe(pipe windows.Handle, o *windows.Overlapped) (err error) = ConnectNamedPipe
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//sys createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *windows.SecurityAttributes) (handle windows.Handle, err error) [failretval==windows.InvalidHandle] = CreateNamedPipeW
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//sys createFile(name string, access uint32, mode uint32, sa *windows.SecurityAttributes, createmode uint32, attrs uint32, templatefile windows.Handle) (handle windows.Handle, err error) [failretval==windows.InvalidHandle] = CreateFileW
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//sys getNamedPipeInfo(pipe windows.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) = GetNamedPipeInfo
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//sys getNamedPipeHandleState(pipe windows.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
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//sys localAlloc(uFlags uint32, length uint32) (ptr uintptr) = LocalAlloc
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//sys ntCreateNamedPipeFile(pipe *syscall.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntstatus) = ntdll.NtCreateNamedPipeFile
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//sys ntCreateNamedPipeFile(pipe *windows.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntstatus) = ntdll.NtCreateNamedPipeFile
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//sys rtlNtStatusToDosError(status ntstatus) (winerr error) = ntdll.RtlNtStatusToDosErrorNoTeb
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//sys rtlDosPathNameToNtPathName(name *uint16, ntName *unicodeString, filePart uintptr, reserved uintptr) (status ntstatus) = ntdll.RtlDosPathNameToNtPathName_U
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//sys rtlDefaultNpAcl(dacl *uintptr) (status ntstatus) = ntdll.RtlDefaultNpAcl
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@ -41,7 +42,7 @@ type objectAttributes struct {
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RootDirectory uintptr
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ObjectName *unicodeString
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Attributes uintptr
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SecurityDescriptor *securityDescriptor
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SecurityDescriptor *windows.SECURITY_DESCRIPTOR
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SecurityQoS uintptr
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}
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@ -51,16 +52,6 @@ type unicodeString struct {
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Buffer uintptr
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}
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type securityDescriptor struct {
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Revision byte
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Sbz1 byte
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Control uint16
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Owner uintptr
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Group uintptr
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Sacl uintptr
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Dacl uintptr
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}
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type ntstatus int32
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func (status ntstatus) Err() error {
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@ -71,11 +62,6 @@ func (status ntstatus) Err() error {
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}
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const (
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cERROR_PIPE_BUSY = syscall.Errno(231)
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cERROR_NO_DATA = syscall.Errno(232)
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cERROR_PIPE_CONNECTED = syscall.Errno(535)
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cERROR_SEM_TIMEOUT = syscall.Errno(121)
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cSECURITY_SQOS_PRESENT = 0x100000
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cSECURITY_ANONYMOUS = 0
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@ -88,8 +74,6 @@ const (
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cFILE_PIPE_MESSAGE_TYPE = 1
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cFILE_PIPE_REJECT_REMOTE_CLIENTS = 2
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cSE_DACL_PRESENT = 4
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)
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var (
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@ -170,7 +154,7 @@ func (f *win32MessageBytePipe) Read(b []byte) (int, error) {
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// zero-byte message, ensure that all future Read() calls
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// also return EOF.
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f.readEOF = true
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} else if err == syscall.ERROR_MORE_DATA {
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} else if err == windows.ERROR_MORE_DATA {
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// ERROR_MORE_DATA indicates that the pipe's read mode is message mode
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// and the message still has more bytes. Treat this as a success, since
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// this package presents all named pipes as byte streams.
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@ -188,17 +172,17 @@ func (s pipeAddress) String() string {
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}
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// tryDialPipe attempts to dial the pipe at `path` until `ctx` cancellation or timeout.
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func tryDialPipe(ctx context.Context, path *string) (syscall.Handle, error) {
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func tryDialPipe(ctx context.Context, path *string) (windows.Handle, error) {
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for {
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select {
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case <-ctx.Done():
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return syscall.Handle(0), ctx.Err()
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return windows.Handle(0), ctx.Err()
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default:
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h, err := createFile(*path, syscall.GENERIC_READ|syscall.GENERIC_WRITE, 0, nil, syscall.OPEN_EXISTING, syscall.FILE_FLAG_OVERLAPPED|cSECURITY_SQOS_PRESENT|cSECURITY_ANONYMOUS, 0)
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h, err := createFile(*path, windows.GENERIC_READ|windows.GENERIC_WRITE, 0, nil, windows.OPEN_EXISTING, windows.FILE_FLAG_OVERLAPPED|cSECURITY_SQOS_PRESENT|cSECURITY_ANONYMOUS, 0)
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if err == nil {
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return h, nil
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}
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if err != cERROR_PIPE_BUSY {
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if err != windows.ERROR_PIPE_BUSY {
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return h, &os.PathError{Err: err, Op: "open", Path: *path}
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}
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// Wait 10 msec and try again. This is a rather simplistic
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@ -211,7 +195,7 @@ func tryDialPipe(ctx context.Context, path *string) (syscall.Handle, error) {
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// DialPipe connects to a named pipe by path, timing out if the connection
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// takes longer than the specified duration. If timeout is nil, then we use
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// a default timeout of 2 seconds. (We do not use WaitNamedPipe.)
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func DialPipe(path string, timeout *time.Duration, expectedOwner *syscall.SID) (net.Conn, error) {
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func DialPipe(path string, timeout *time.Duration, expectedOwner *windows.SID) (net.Conn, error) {
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var absTimeout time.Time
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if timeout != nil {
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absTimeout = time.Now().Add(*timeout)
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@ -228,39 +212,41 @@ func DialPipe(path string, timeout *time.Duration, expectedOwner *syscall.SID) (
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// DialPipeContext attempts to connect to a named pipe by `path` until `ctx`
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// cancellation or timeout.
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func DialPipeContext(ctx context.Context, path string, expectedOwner *syscall.SID) (net.Conn, error) {
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func DialPipeContext(ctx context.Context, path string, expectedOwner *windows.SID) (net.Conn, error) {
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var err error
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var h syscall.Handle
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var h windows.Handle
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h, err = tryDialPipe(ctx, &path)
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if err != nil {
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return nil, err
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}
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if expectedOwner != nil {
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var realOwner *syscall.SID
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var realSd uintptr
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err = getSecurityInfo(h, SE_FILE_OBJECT, OWNER_SECURITY_INFORMATION, &realOwner, nil, nil, nil, &realSd)
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sd, err := windows.GetSecurityInfo(h, windows.SE_FILE_OBJECT, windows.OWNER_SECURITY_INFORMATION)
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if err != nil {
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syscall.Close(h)
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windows.Close(h)
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return nil, err
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}
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defer localFree(realSd)
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if !equalSid(realOwner, expectedOwner) {
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syscall.Close(h)
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return nil, syscall.ERROR_ACCESS_DENIED
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realOwner, _, err := sd.Owner()
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if err != nil {
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windows.Close(h)
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return nil, err
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}
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if !realOwner.Equals(expectedOwner) {
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windows.Close(h)
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return nil, windows.ERROR_ACCESS_DENIED
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}
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}
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var flags uint32
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err = getNamedPipeInfo(h, &flags, nil, nil, nil)
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if err != nil {
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syscall.Close(h)
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windows.Close(h)
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return nil, err
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}
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f, err := makeWin32File(h)
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if err != nil {
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syscall.Close(h)
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windows.Close(h)
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return nil, err
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}
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@ -280,7 +266,7 @@ type acceptResponse struct {
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}
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type win32PipeListener struct {
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firstHandle syscall.Handle
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firstHandle windows.Handle
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path string
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config PipeConfig
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acceptCh chan (chan acceptResponse)
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@ -288,8 +274,8 @@ type win32PipeListener struct {
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doneCh chan int
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}
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func makeServerPipeHandle(path string, sd []byte, c *PipeConfig, first bool) (syscall.Handle, error) {
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path16, err := syscall.UTF16FromString(path)
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func makeServerPipeHandle(path string, sd *windows.SECURITY_DESCRIPTOR, c *PipeConfig, first bool) (windows.Handle, error) {
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path16, err := windows.UTF16FromString(path)
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if err != nil {
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return 0, &os.PathError{Op: "open", Path: path, Err: err}
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}
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@ -301,31 +287,32 @@ func makeServerPipeHandle(path string, sd []byte, c *PipeConfig, first bool) (sy
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if err := rtlDosPathNameToNtPathName(&path16[0], &ntPath, 0, 0).Err(); err != nil {
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return 0, &os.PathError{Op: "open", Path: path, Err: err}
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}
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defer localFree(ntPath.Buffer)
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defer windows.LocalFree(windows.Handle(ntPath.Buffer))
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oa.ObjectName = &ntPath
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// The security descriptor is only needed for the first pipe.
|
||||
if first {
|
||||
if sd != nil {
|
||||
len := uint32(len(sd))
|
||||
sdb := localAlloc(0, len)
|
||||
defer localFree(sdb)
|
||||
copy((*[0xffff]byte)(unsafe.Pointer(sdb))[:], sd)
|
||||
oa.SecurityDescriptor = (*securityDescriptor)(unsafe.Pointer(sdb))
|
||||
oa.SecurityDescriptor = sd
|
||||
} else {
|
||||
// Construct the default named pipe security descriptor.
|
||||
var dacl uintptr
|
||||
if err := rtlDefaultNpAcl(&dacl).Err(); err != nil {
|
||||
return 0, fmt.Errorf("getting default named pipe ACL: %s", err)
|
||||
}
|
||||
defer localFree(dacl)
|
||||
|
||||
sdb := &securityDescriptor{
|
||||
Revision: 1,
|
||||
Control: cSE_DACL_PRESENT,
|
||||
Dacl: dacl,
|
||||
defer windows.LocalFree(windows.Handle(dacl))
|
||||
sd, err := windows.NewSecurityDescriptor()
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("creating new security descriptor: %s", err)
|
||||
}
|
||||
oa.SecurityDescriptor = sdb
|
||||
if err = sd.SetDACL((*windows.ACL)(unsafe.Pointer(dacl)), true, false); err != nil {
|
||||
return 0, fmt.Errorf("assigning dacl: %s", err)
|
||||
}
|
||||
sd, err = sd.ToSelfRelative()
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("converting to self-relative: %s", err)
|
||||
}
|
||||
oa.SecurityDescriptor = sd
|
||||
}
|
||||
}
|
||||
|
||||
@ -335,22 +322,22 @@ func makeServerPipeHandle(path string, sd []byte, c *PipeConfig, first bool) (sy
|
||||
}
|
||||
|
||||
disposition := uint32(cFILE_OPEN)
|
||||
access := uint32(syscall.GENERIC_READ | syscall.GENERIC_WRITE | syscall.SYNCHRONIZE)
|
||||
access := uint32(windows.GENERIC_READ | windows.GENERIC_WRITE | windows.SYNCHRONIZE)
|
||||
if first {
|
||||
disposition = cFILE_CREATE
|
||||
// By not asking for read or write access, the named pipe file system
|
||||
// will put this pipe into an initially disconnected state, blocking
|
||||
// client connections until the next call with first == false.
|
||||
access = syscall.SYNCHRONIZE
|
||||
access = windows.SYNCHRONIZE
|
||||
}
|
||||
|
||||
timeout := int64(-50 * 10000) // 50ms
|
||||
|
||||
var (
|
||||
h syscall.Handle
|
||||
h windows.Handle
|
||||
iosb ioStatusBlock
|
||||
)
|
||||
err = ntCreateNamedPipeFile(&h, access, &oa, &iosb, syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE, disposition, 0, typ, 0, 0, 0xffffffff, uint32(c.InputBufferSize), uint32(c.OutputBufferSize), &timeout).Err()
|
||||
err = ntCreateNamedPipeFile(&h, access, &oa, &iosb, windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE, disposition, 0, typ, 0, 0, 0xffffffff, uint32(c.InputBufferSize), uint32(c.OutputBufferSize), &timeout).Err()
|
||||
if err != nil {
|
||||
return 0, &os.PathError{Op: "open", Path: path, Err: err}
|
||||
}
|
||||
@ -366,7 +353,7 @@ func (l *win32PipeListener) makeServerPipe() (*win32File, error) {
|
||||
}
|
||||
f, err := makeWin32File(h)
|
||||
if err != nil {
|
||||
syscall.Close(h)
|
||||
windows.Close(h)
|
||||
return nil, err
|
||||
}
|
||||
return f, nil
|
||||
@ -417,7 +404,7 @@ func (l *win32PipeListener) listenerRoutine() {
|
||||
p, err = l.makeConnectedServerPipe()
|
||||
// If the connection was immediately closed by the client, try
|
||||
// again.
|
||||
if err != cERROR_NO_DATA {
|
||||
if err != windows.ERROR_NO_DATA {
|
||||
break
|
||||
}
|
||||
}
|
||||
@ -425,7 +412,7 @@ func (l *win32PipeListener) listenerRoutine() {
|
||||
closed = err == ErrPipeListenerClosed
|
||||
}
|
||||
}
|
||||
syscall.Close(l.firstHandle)
|
||||
windows.Close(l.firstHandle)
|
||||
l.firstHandle = 0
|
||||
// Notify Close() and Accept() callers that the handle has been closed.
|
||||
close(l.doneCh)
|
||||
@ -433,8 +420,8 @@ func (l *win32PipeListener) listenerRoutine() {
|
||||
|
||||
// PipeConfig contain configuration for the pipe listener.
|
||||
type PipeConfig struct {
|
||||
// SecurityDescriptor contains a Windows security descriptor in SDDL format.
|
||||
SecurityDescriptor string
|
||||
// SecurityDescriptor contains a Windows security descriptor.
|
||||
SecurityDescriptor *windows.SECURITY_DESCRIPTOR
|
||||
|
||||
// MessageMode determines whether the pipe is in byte or message mode. In either
|
||||
// case the pipe is read in byte mode by default. The only practical difference in
|
||||
@ -454,20 +441,10 @@ type PipeConfig struct {
|
||||
// ListenPipe creates a listener on a Windows named pipe path, e.g. \\.\pipe\mypipe.
|
||||
// The pipe must not already exist.
|
||||
func ListenPipe(path string, c *PipeConfig) (net.Listener, error) {
|
||||
var (
|
||||
sd []byte
|
||||
err error
|
||||
)
|
||||
if c == nil {
|
||||
c = &PipeConfig{}
|
||||
}
|
||||
if c.SecurityDescriptor != "" {
|
||||
sd, err = SddlToSecurityDescriptor(c.SecurityDescriptor)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
h, err := makeServerPipeHandle(path, sd, c, true)
|
||||
h, err := makeServerPipeHandle(path, c.SecurityDescriptor, c, true)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
@ -492,7 +469,7 @@ func connectPipe(p *win32File) error {
|
||||
|
||||
err = connectNamedPipe(p.handle, &c.o)
|
||||
_, err = p.asyncIo(c, nil, 0, err)
|
||||
if err != nil && err != cERROR_PIPE_CONNECTED {
|
||||
if err != nil && err != windows.ERROR_PIPE_CONNECTED {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
|
||||
@ -1,36 +0,0 @@
|
||||
// +build windows
|
||||
|
||||
/* SPDX-License-Identifier: MIT
|
||||
*
|
||||
* Copyright (C) 2005 Microsoft
|
||||
* Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
|
||||
*/
|
||||
|
||||
package winpipe
|
||||
|
||||
import (
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
//sys convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) = advapi32.ConvertStringSecurityDescriptorToSecurityDescriptorW
|
||||
//sys localFree(mem uintptr) = LocalFree
|
||||
//sys getSecurityDescriptorLength(sd uintptr) (len uint32) = advapi32.GetSecurityDescriptorLength
|
||||
//sys getSecurityInfo(handle syscall.Handle, objectType uint32, securityInformation uint32, owner **syscall.SID, group **syscall.SID, dacl *uintptr, sacl *uintptr, sd *uintptr) (ret error) = advapi32.GetSecurityInfo
|
||||
//sys equalSid(sid1 *syscall.SID, sid2 *syscall.SID) (isEqual bool) = advapi32.EqualSid
|
||||
|
||||
const (
|
||||
SE_FILE_OBJECT = 1
|
||||
OWNER_SECURITY_INFORMATION = 1
|
||||
)
|
||||
|
||||
func SddlToSecurityDescriptor(sddl string) ([]byte, error) {
|
||||
var sdBuffer uintptr
|
||||
err := convertStringSecurityDescriptorToSecurityDescriptor(sddl, 1, &sdBuffer, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer localFree(sdBuffer)
|
||||
sd := make([]byte, getSecurityDescriptorLength(sdBuffer))
|
||||
copy(sd, (*[0xffff]byte)(unsafe.Pointer(sdBuffer))[:len(sd)])
|
||||
return sd, nil
|
||||
}
|
||||
@ -39,7 +39,6 @@ func errnoErr(e syscall.Errno) error {
|
||||
var (
|
||||
modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
|
||||
modntdll = windows.NewLazySystemDLL("ntdll.dll")
|
||||
modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
|
||||
modws2_32 = windows.NewLazySystemDLL("ws2_32.dll")
|
||||
|
||||
procConnectNamedPipe = modkernel32.NewProc("ConnectNamedPipe")
|
||||
@ -52,11 +51,6 @@ var (
|
||||
procRtlNtStatusToDosErrorNoTeb = modntdll.NewProc("RtlNtStatusToDosErrorNoTeb")
|
||||
procRtlDosPathNameToNtPathName_U = modntdll.NewProc("RtlDosPathNameToNtPathName_U")
|
||||
procRtlDefaultNpAcl = modntdll.NewProc("RtlDefaultNpAcl")
|
||||
procConvertStringSecurityDescriptorToSecurityDescriptorW = modadvapi32.NewProc("ConvertStringSecurityDescriptorToSecurityDescriptorW")
|
||||
procLocalFree = modkernel32.NewProc("LocalFree")
|
||||
procGetSecurityDescriptorLength = modadvapi32.NewProc("GetSecurityDescriptorLength")
|
||||
procGetSecurityInfo = modadvapi32.NewProc("GetSecurityInfo")
|
||||
procEqualSid = modadvapi32.NewProc("EqualSid")
|
||||
procCancelIoEx = modkernel32.NewProc("CancelIoEx")
|
||||
procCreateIoCompletionPort = modkernel32.NewProc("CreateIoCompletionPort")
|
||||
procGetQueuedCompletionStatus = modkernel32.NewProc("GetQueuedCompletionStatus")
|
||||
@ -64,7 +58,7 @@ var (
|
||||
procWSAGetOverlappedResult = modws2_32.NewProc("WSAGetOverlappedResult")
|
||||
)
|
||||
|
||||
func connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) {
|
||||
func connectNamedPipe(pipe windows.Handle, o *windows.Overlapped) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procConnectNamedPipe.Addr(), 2, uintptr(pipe), uintptr(unsafe.Pointer(o)), 0)
|
||||
if r1 == 0 {
|
||||
if e1 != 0 {
|
||||
@ -76,7 +70,7 @@ func connectNamedPipe(pipe syscall.Handle, o *syscall.Overlapped) (err error) {
|
||||
return
|
||||
}
|
||||
|
||||
func createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error) {
|
||||
func createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *windows.SecurityAttributes) (handle windows.Handle, err error) {
|
||||
var _p0 *uint16
|
||||
_p0, err = syscall.UTF16PtrFromString(name)
|
||||
if err != nil {
|
||||
@ -85,10 +79,10 @@ func createNamedPipe(name string, flags uint32, pipeMode uint32, maxInstances ui
|
||||
return _createNamedPipe(_p0, flags, pipeMode, maxInstances, outSize, inSize, defaultTimeout, sa)
|
||||
}
|
||||
|
||||
func _createNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *syscall.SecurityAttributes) (handle syscall.Handle, err error) {
|
||||
func _createNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *windows.SecurityAttributes) (handle windows.Handle, err error) {
|
||||
r0, _, e1 := syscall.Syscall9(procCreateNamedPipeW.Addr(), 8, uintptr(unsafe.Pointer(name)), uintptr(flags), uintptr(pipeMode), uintptr(maxInstances), uintptr(outSize), uintptr(inSize), uintptr(defaultTimeout), uintptr(unsafe.Pointer(sa)), 0)
|
||||
handle = syscall.Handle(r0)
|
||||
if handle == syscall.InvalidHandle {
|
||||
handle = windows.Handle(r0)
|
||||
if handle == windows.InvalidHandle {
|
||||
if e1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
} else {
|
||||
@ -98,7 +92,7 @@ func _createNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances
|
||||
return
|
||||
}
|
||||
|
||||
func createFile(name string, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) {
|
||||
func createFile(name string, access uint32, mode uint32, sa *windows.SecurityAttributes, createmode uint32, attrs uint32, templatefile windows.Handle) (handle windows.Handle, err error) {
|
||||
var _p0 *uint16
|
||||
_p0, err = syscall.UTF16PtrFromString(name)
|
||||
if err != nil {
|
||||
@ -107,10 +101,10 @@ func createFile(name string, access uint32, mode uint32, sa *syscall.SecurityAtt
|
||||
return _createFile(_p0, access, mode, sa, createmode, attrs, templatefile)
|
||||
}
|
||||
|
||||
func _createFile(name *uint16, access uint32, mode uint32, sa *syscall.SecurityAttributes, createmode uint32, attrs uint32, templatefile syscall.Handle) (handle syscall.Handle, err error) {
|
||||
func _createFile(name *uint16, access uint32, mode uint32, sa *windows.SecurityAttributes, createmode uint32, attrs uint32, templatefile windows.Handle) (handle windows.Handle, err error) {
|
||||
r0, _, e1 := syscall.Syscall9(procCreateFileW.Addr(), 7, uintptr(unsafe.Pointer(name)), uintptr(access), uintptr(mode), uintptr(unsafe.Pointer(sa)), uintptr(createmode), uintptr(attrs), uintptr(templatefile), 0, 0)
|
||||
handle = syscall.Handle(r0)
|
||||
if handle == syscall.InvalidHandle {
|
||||
handle = windows.Handle(r0)
|
||||
if handle == windows.InvalidHandle {
|
||||
if e1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
} else {
|
||||
@ -120,7 +114,7 @@ func _createFile(name *uint16, access uint32, mode uint32, sa *syscall.SecurityA
|
||||
return
|
||||
}
|
||||
|
||||
func getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) {
|
||||
func getNamedPipeInfo(pipe windows.Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall6(procGetNamedPipeInfo.Addr(), 5, uintptr(pipe), uintptr(unsafe.Pointer(flags)), uintptr(unsafe.Pointer(outSize)), uintptr(unsafe.Pointer(inSize)), uintptr(unsafe.Pointer(maxInstances)), 0)
|
||||
if r1 == 0 {
|
||||
if e1 != 0 {
|
||||
@ -132,7 +126,7 @@ func getNamedPipeInfo(pipe syscall.Handle, flags *uint32, outSize *uint32, inSiz
|
||||
return
|
||||
}
|
||||
|
||||
func getNamedPipeHandleState(pipe syscall.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) {
|
||||
func getNamedPipeHandleState(pipe windows.Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall9(procGetNamedPipeHandleStateW.Addr(), 7, uintptr(pipe), uintptr(unsafe.Pointer(state)), uintptr(unsafe.Pointer(curInstances)), uintptr(unsafe.Pointer(maxCollectionCount)), uintptr(unsafe.Pointer(collectDataTimeout)), uintptr(unsafe.Pointer(userName)), uintptr(maxUserNameSize), 0, 0)
|
||||
if r1 == 0 {
|
||||
if e1 != 0 {
|
||||
@ -150,7 +144,7 @@ func localAlloc(uFlags uint32, length uint32) (ptr uintptr) {
|
||||
return
|
||||
}
|
||||
|
||||
func ntCreateNamedPipeFile(pipe *syscall.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntstatus) {
|
||||
func ntCreateNamedPipeFile(pipe *windows.Handle, access uint32, oa *objectAttributes, iosb *ioStatusBlock, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (status ntstatus) {
|
||||
r0, _, _ := syscall.Syscall15(procNtCreateNamedPipeFile.Addr(), 14, uintptr(unsafe.Pointer(pipe)), uintptr(access), uintptr(unsafe.Pointer(oa)), uintptr(unsafe.Pointer(iosb)), uintptr(share), uintptr(disposition), uintptr(options), uintptr(typ), uintptr(readMode), uintptr(completionMode), uintptr(maxInstances), uintptr(inboundQuota), uintptr(outputQuota), uintptr(unsafe.Pointer(timeout)), 0)
|
||||
status = ntstatus(r0)
|
||||
return
|
||||
@ -176,53 +170,7 @@ func rtlDefaultNpAcl(dacl *uintptr) (status ntstatus) {
|
||||
return
|
||||
}
|
||||
|
||||
func convertStringSecurityDescriptorToSecurityDescriptor(str string, revision uint32, sd *uintptr, size *uint32) (err error) {
|
||||
var _p0 *uint16
|
||||
_p0, err = syscall.UTF16PtrFromString(str)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
return _convertStringSecurityDescriptorToSecurityDescriptor(_p0, revision, sd, size)
|
||||
}
|
||||
|
||||
func _convertStringSecurityDescriptorToSecurityDescriptor(str *uint16, revision uint32, sd *uintptr, size *uint32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall6(procConvertStringSecurityDescriptorToSecurityDescriptorW.Addr(), 4, uintptr(unsafe.Pointer(str)), uintptr(revision), uintptr(unsafe.Pointer(sd)), uintptr(unsafe.Pointer(size)), 0, 0)
|
||||
if r1 == 0 {
|
||||
if e1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
} else {
|
||||
err = syscall.EINVAL
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func localFree(mem uintptr) {
|
||||
syscall.Syscall(procLocalFree.Addr(), 1, uintptr(mem), 0, 0)
|
||||
return
|
||||
}
|
||||
|
||||
func getSecurityDescriptorLength(sd uintptr) (len uint32) {
|
||||
r0, _, _ := syscall.Syscall(procGetSecurityDescriptorLength.Addr(), 1, uintptr(sd), 0, 0)
|
||||
len = uint32(r0)
|
||||
return
|
||||
}
|
||||
|
||||
func getSecurityInfo(handle syscall.Handle, objectType uint32, securityInformation uint32, owner **syscall.SID, group **syscall.SID, dacl *uintptr, sacl *uintptr, sd *uintptr) (ret error) {
|
||||
r0, _, _ := syscall.Syscall9(procGetSecurityInfo.Addr(), 8, uintptr(handle), uintptr(objectType), uintptr(securityInformation), uintptr(unsafe.Pointer(owner)), uintptr(unsafe.Pointer(group)), uintptr(unsafe.Pointer(dacl)), uintptr(unsafe.Pointer(sacl)), uintptr(unsafe.Pointer(sd)), 0)
|
||||
if r0 != 0 {
|
||||
ret = syscall.Errno(r0)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func equalSid(sid1 *syscall.SID, sid2 *syscall.SID) (isEqual bool) {
|
||||
r0, _, _ := syscall.Syscall(procEqualSid.Addr(), 2, uintptr(unsafe.Pointer(sid1)), uintptr(unsafe.Pointer(sid2)), 0)
|
||||
isEqual = r0 != 0
|
||||
return
|
||||
}
|
||||
|
||||
func cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) {
|
||||
func cancelIoEx(file windows.Handle, o *windows.Overlapped) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procCancelIoEx.Addr(), 2, uintptr(file), uintptr(unsafe.Pointer(o)), 0)
|
||||
if r1 == 0 {
|
||||
if e1 != 0 {
|
||||
@ -234,9 +182,9 @@ func cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) {
|
||||
return
|
||||
}
|
||||
|
||||
func createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintptr, threadCount uint32) (newport syscall.Handle, err error) {
|
||||
func createIoCompletionPort(file windows.Handle, port windows.Handle, key uintptr, threadCount uint32) (newport windows.Handle, err error) {
|
||||
r0, _, e1 := syscall.Syscall6(procCreateIoCompletionPort.Addr(), 4, uintptr(file), uintptr(port), uintptr(key), uintptr(threadCount), 0, 0)
|
||||
newport = syscall.Handle(r0)
|
||||
newport = windows.Handle(r0)
|
||||
if newport == 0 {
|
||||
if e1 != 0 {
|
||||
err = errnoErr(e1)
|
||||
@ -247,7 +195,7 @@ func createIoCompletionPort(file syscall.Handle, port syscall.Handle, key uintpt
|
||||
return
|
||||
}
|
||||
|
||||
func getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) {
|
||||
func getQueuedCompletionStatus(port windows.Handle, bytes *uint32, key *uintptr, o **ioOperation, timeout uint32) (err error) {
|
||||
r1, _, e1 := syscall.Syscall6(procGetQueuedCompletionStatus.Addr(), 5, uintptr(port), uintptr(unsafe.Pointer(bytes)), uintptr(unsafe.Pointer(key)), uintptr(unsafe.Pointer(o)), uintptr(timeout), 0)
|
||||
if r1 == 0 {
|
||||
if e1 != 0 {
|
||||
@ -259,7 +207,7 @@ func getQueuedCompletionStatus(port syscall.Handle, bytes *uint32, key *uintptr,
|
||||
return
|
||||
}
|
||||
|
||||
func setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err error) {
|
||||
func setFileCompletionNotificationModes(h windows.Handle, flags uint8) (err error) {
|
||||
r1, _, e1 := syscall.Syscall(procSetFileCompletionNotificationModes.Addr(), 2, uintptr(h), uintptr(flags), 0)
|
||||
if r1 == 0 {
|
||||
if e1 != 0 {
|
||||
@ -271,7 +219,7 @@ func setFileCompletionNotificationModes(h syscall.Handle, flags uint8) (err erro
|
||||
return
|
||||
}
|
||||
|
||||
func wsaGetOverlappedResult(h syscall.Handle, o *syscall.Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) {
|
||||
func wsaGetOverlappedResult(h windows.Handle, o *windows.Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) {
|
||||
var _p0 uint32
|
||||
if wait {
|
||||
_p0 = 1
|
||||
|
||||
@ -16,7 +16,6 @@ import (
|
||||
"golang.org/x/sys/windows"
|
||||
"golang.org/x/text/unicode/norm"
|
||||
|
||||
"golang.zx2c4.com/wireguard/ipc/winpipe"
|
||||
"golang.zx2c4.com/wireguard/tun/wintun/namespaceapi"
|
||||
)
|
||||
|
||||
@ -32,13 +31,13 @@ func initializeNamespace() error {
|
||||
if hasInitializedNamespace {
|
||||
return nil
|
||||
}
|
||||
sd, err := winpipe.SddlToSecurityDescriptor("O:SYD:P(A;;GA;;;SY)")
|
||||
sd, err := windows.SecurityDescriptorFromString("O:SYD:P(A;;GA;;;SY)")
|
||||
if err != nil {
|
||||
return fmt.Errorf("SddlToSecurityDescriptor failed: %v", err)
|
||||
}
|
||||
wintunObjectSecurityAttributes = &windows.SecurityAttributes{
|
||||
Length: uint32(unsafe.Sizeof(windows.SecurityAttributes{})),
|
||||
SecurityDescriptor: uintptr(unsafe.Pointer(&sd[0])),
|
||||
SecurityDescriptor: uintptr(unsafe.Pointer(sd)),
|
||||
}
|
||||
sid, err := windows.CreateWellKnownSid(windows.WinLocalSystemSid)
|
||||
if err != nil {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user