diff options
| author | Stefan Majewsky <majewsky@gmx.net> | 2019-10-29 16:51:07 +0100 |
|---|---|---|
| committer | Stefan Majewsky <majewsky@gmx.net> | 2019-10-29 16:51:07 +0100 |
| commit | afe18e86a7aa2248c69997ed941bcbe3e6b2a655 (patch) | |
| tree | 7aaef5752ba8ad3465e9638c7adca71e1a103ee3 /vendor/golang.org/x/sys/windows/syscall_windows.go | |
| parent | ef84ca3e82f422118c69a0c562433c185e1dcb9b (diff) | |
| download | gofu-afe18e86a7aa2248c69997ed941bcbe3e6b2a655.tar.gz | |
switch to go.mod
Diffstat (limited to 'vendor/golang.org/x/sys/windows/syscall_windows.go')
| -rw-r--r-- | vendor/golang.org/x/sys/windows/syscall_windows.go | 254 |
1 files changed, 241 insertions, 13 deletions
diff --git a/vendor/golang.org/x/sys/windows/syscall_windows.go b/vendor/golang.org/x/sys/windows/syscall_windows.go index 99b11fe..7aff0d0 100644 --- a/vendor/golang.org/x/sys/windows/syscall_windows.go +++ b/vendor/golang.org/x/sys/windows/syscall_windows.go @@ -1,4 +1,4 @@ -// Copyright 2009 The Go Authors. All rights reserved. +// Copyright 2009 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. @@ -16,7 +16,46 @@ import ( type Handle uintptr -const InvalidHandle = ^Handle(0) +const ( + InvalidHandle = ^Handle(0) + + // Flags for DefineDosDevice. + DDD_EXACT_MATCH_ON_REMOVE = 0x00000004 + DDD_NO_BROADCAST_SYSTEM = 0x00000008 + DDD_RAW_TARGET_PATH = 0x00000001 + DDD_REMOVE_DEFINITION = 0x00000002 + + // Return values for GetDriveType. + DRIVE_UNKNOWN = 0 + DRIVE_NO_ROOT_DIR = 1 + DRIVE_REMOVABLE = 2 + DRIVE_FIXED = 3 + DRIVE_REMOTE = 4 + DRIVE_CDROM = 5 + DRIVE_RAMDISK = 6 + + // File system flags from GetVolumeInformation and GetVolumeInformationByHandle. + FILE_CASE_SENSITIVE_SEARCH = 0x00000001 + FILE_CASE_PRESERVED_NAMES = 0x00000002 + FILE_FILE_COMPRESSION = 0x00000010 + FILE_DAX_VOLUME = 0x20000000 + FILE_NAMED_STREAMS = 0x00040000 + FILE_PERSISTENT_ACLS = 0x00000008 + FILE_READ_ONLY_VOLUME = 0x00080000 + FILE_SEQUENTIAL_WRITE_ONCE = 0x00100000 + FILE_SUPPORTS_ENCRYPTION = 0x00020000 + FILE_SUPPORTS_EXTENDED_ATTRIBUTES = 0x00800000 + FILE_SUPPORTS_HARD_LINKS = 0x00400000 + FILE_SUPPORTS_OBJECT_IDS = 0x00010000 + FILE_SUPPORTS_OPEN_BY_FILE_ID = 0x01000000 + FILE_SUPPORTS_REPARSE_POINTS = 0x00000080 + FILE_SUPPORTS_SPARSE_FILES = 0x00000040 + FILE_SUPPORTS_TRANSACTIONS = 0x00200000 + FILE_SUPPORTS_USN_JOURNAL = 0x02000000 + FILE_UNICODE_ON_DISK = 0x00000004 + FILE_VOLUME_IS_COMPRESSED = 0x00008000 + FILE_VOLUME_QUOTAS = 0x00000020 +) // StringToUTF16 is deprecated. Use UTF16FromString instead. // If s contains a NUL byte this function panics instead of @@ -71,12 +110,19 @@ func UTF16PtrFromString(s string) (*uint16, error) { func Getpagesize() int { return 4096 } -// Converts a Go function to a function pointer conforming -// to the stdcall or cdecl calling convention. This is useful when -// interoperating with Windows code requiring callbacks. -// Implemented in runtime/syscall_windows.goc -func NewCallback(fn interface{}) uintptr -func NewCallbackCDecl(fn interface{}) uintptr +// NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention. +// This is useful when interoperating with Windows code requiring callbacks. +// The argument is expected to be a function with with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr. +func NewCallback(fn interface{}) uintptr { + return syscall.NewCallback(fn) +} + +// NewCallbackCDecl converts a Go function to a function pointer conforming to the cdecl calling convention. +// This is useful when interoperating with Windows code requiring callbacks. +// The argument is expected to be a function with with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr. +func NewCallbackCDecl(fn interface{}) uintptr { + return syscall.NewCallbackCDecl(fn) +} // windows api calls @@ -91,6 +137,7 @@ func NewCallbackCDecl(fn interface{}) uintptr //sys CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile int32) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW //sys ReadFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) //sys WriteFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) +//sys GetOverlappedResult(handle Handle, overlapped *Overlapped, done *uint32, wait bool) (err error) //sys SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff] //sys CloseHandle(handle Handle) (err error) //sys GetStdHandle(stdhandle uint32) (handle Handle, err error) [failretval==InvalidHandle] @@ -126,6 +173,7 @@ func NewCallbackCDecl(fn interface{}) uintptr //sys GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error) //sys DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error) //sys WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] +//sys waitForMultipleObjects(count uint32, handles uintptr, waitAll bool, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] = WaitForMultipleObjects //sys GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW //sys CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error) //sys GetFileType(filehandle Handle) (n uint32, err error) @@ -154,6 +202,9 @@ func NewCallbackCDecl(fn interface{}) uintptr //sys FlushViewOfFile(addr uintptr, length uintptr) (err error) //sys VirtualLock(addr uintptr, length uintptr) (err error) //sys VirtualUnlock(addr uintptr, length uintptr) (err error) +//sys VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc +//sys VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree +//sys VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect //sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile //sys ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW //sys CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW @@ -173,6 +224,8 @@ func NewCallbackCDecl(fn interface{}) uintptr //sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW //sys getCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId //sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode +//sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode +//sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo //sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW //sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW //sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot @@ -183,11 +236,51 @@ func NewCallbackCDecl(fn interface{}) uintptr //sys CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW //sys CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW //sys GetCurrentThreadId() (id uint32) -//sys CreateEvent(eventAttrs *syscall.SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) = kernel32.CreateEventW +//sys CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) = kernel32.CreateEventW +//sys CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) = kernel32.CreateEventExW +//sys OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW //sys SetEvent(event Handle) (err error) = kernel32.SetEvent +//sys ResetEvent(event Handle) (err error) = kernel32.ResetEvent +//sys PulseEvent(event Handle) (err error) = kernel32.PulseEvent + +// Volume Management Functions +//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW +//sys DeleteVolumeMountPoint(volumeMountPoint *uint16) (err error) = DeleteVolumeMountPointW +//sys FindFirstVolume(volumeName *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeW +//sys FindFirstVolumeMountPoint(rootPathName *uint16, volumeMountPoint *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeMountPointW +//sys FindNextVolume(findVolume Handle, volumeName *uint16, bufferLength uint32) (err error) = FindNextVolumeW +//sys FindNextVolumeMountPoint(findVolumeMountPoint Handle, volumeMountPoint *uint16, bufferLength uint32) (err error) = FindNextVolumeMountPointW +//sys FindVolumeClose(findVolume Handle) (err error) +//sys FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error) +//sys GetDriveType(rootPathName *uint16) (driveType uint32) = GetDriveTypeW +//sys GetLogicalDrives() (drivesBitMask uint32, err error) [failretval==0] +//sys GetLogicalDriveStrings(bufferLength uint32, buffer *uint16) (n uint32, err error) [failretval==0] = GetLogicalDriveStringsW +//sys GetVolumeInformation(rootPathName *uint16, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationW +//sys GetVolumeInformationByHandle(file Handle, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationByHandleW +//sys GetVolumeNameForVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16, bufferlength uint32) (err error) = GetVolumeNameForVolumeMountPointW +//sys GetVolumePathName(fileName *uint16, volumePathName *uint16, bufferLength uint32) (err error) = GetVolumePathNameW +//sys GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW +//sys QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW +//sys SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW +//sys SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err error) = SetVolumeMountPointW // syscall interface implementation for other packages +// GetProcAddressByOrdinal retrieves the address of the exported +// function from module by ordinal. +func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) { + r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0) + proc = uintptr(r0) + if proc == 0 { + if e1 != 0 { + err = errnoErr(e1) + } else { + err = syscall.EINVAL + } + } + return +} + func Exit(code int) { ExitProcess(uint32(code)) } func makeInheritSa() *SecurityAttributes { @@ -486,6 +579,10 @@ func Chmod(path string, mode uint32) (err error) { return SetFileAttributes(p, attrs) } +func LoadGetSystemTimePreciseAsFileTime() error { + return procGetSystemTimePreciseAsFileTime.Find() +} + func LoadCancelIoEx() error { return procCancelIoEx.Find() } @@ -494,6 +591,18 @@ func LoadSetFileCompletionNotificationModes() error { return procSetFileCompletionNotificationModes.Find() } +func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) { + // Every other win32 array API takes arguments as "pointer, count", except for this function. So we + // can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore + // trivially stub this ourselves. + + var handlePtr *Handle + if len(handles) > 0 { + handlePtr = &handles[0] + } + return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds) +} + // net api calls const socket_error = uintptr(^uint32(0)) @@ -560,7 +669,7 @@ type RawSockaddr struct { type RawSockaddrAny struct { Addr RawSockaddr - Pad [96]int8 + Pad [100]int8 } type Sockaddr interface { @@ -609,19 +718,69 @@ func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) { return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil } +type RawSockaddrUnix struct { + Family uint16 + Path [UNIX_PATH_MAX]int8 +} + type SockaddrUnix struct { Name string + raw RawSockaddrUnix } func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) { - // TODO(brainman): implement SockaddrUnix.sockaddr() - return nil, 0, syscall.EWINDOWS + name := sa.Name + n := len(name) + if n > len(sa.raw.Path) { + return nil, 0, syscall.EINVAL + } + if n == len(sa.raw.Path) && name[0] != '@' { + return nil, 0, syscall.EINVAL + } + sa.raw.Family = AF_UNIX + for i := 0; i < n; i++ { + sa.raw.Path[i] = int8(name[i]) + } + // length is family (uint16), name, NUL. + sl := int32(2) + if n > 0 { + sl += int32(n) + 1 + } + if sa.raw.Path[0] == '@' { + sa.raw.Path[0] = 0 + // Don't count trailing NUL for abstract address. + sl-- + } + + return unsafe.Pointer(&sa.raw), sl, nil } func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) { switch rsa.Addr.Family { case AF_UNIX: - return nil, syscall.EWINDOWS + pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) + sa := new(SockaddrUnix) + if pp.Path[0] == 0 { + // "Abstract" Unix domain socket. + // Rewrite leading NUL as @ for textual display. + // (This is the standard convention.) + // Not friendly to overwrite in place, + // but the callers below don't care. + pp.Path[0] = '@' + } + + // Assume path ends at NUL. + // This is not technically the Linux semantics for + // abstract Unix domain sockets--they are supposed + // to be uninterpreted fixed-size binary blobs--but + // everyone uses this convention. + n := 0 + for n < len(pp.Path) && pp.Path[n] != 0 { + n++ + } + bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n] + sa.Name = string(bytes) + return sa, nil case AF_INET: pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) @@ -763,6 +922,75 @@ func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesS return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped) } +var sendRecvMsgFunc struct { + once sync.Once + sendAddr uintptr + recvAddr uintptr + err error +} + +func loadWSASendRecvMsg() error { + sendRecvMsgFunc.once.Do(func() { + var s Handle + s, sendRecvMsgFunc.err = Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP) + if sendRecvMsgFunc.err != nil { + return + } + defer CloseHandle(s) + var n uint32 + sendRecvMsgFunc.err = WSAIoctl(s, + SIO_GET_EXTENSION_FUNCTION_POINTER, + (*byte)(unsafe.Pointer(&WSAID_WSARECVMSG)), + uint32(unsafe.Sizeof(WSAID_WSARECVMSG)), + (*byte)(unsafe.Pointer(&sendRecvMsgFunc.recvAddr)), + uint32(unsafe.Sizeof(sendRecvMsgFunc.recvAddr)), + &n, nil, 0) + if sendRecvMsgFunc.err != nil { + return + } + sendRecvMsgFunc.err = WSAIoctl(s, + SIO_GET_EXTENSION_FUNCTION_POINTER, + (*byte)(unsafe.Pointer(&WSAID_WSASENDMSG)), + uint32(unsafe.Sizeof(WSAID_WSASENDMSG)), + (*byte)(unsafe.Pointer(&sendRecvMsgFunc.sendAddr)), + uint32(unsafe.Sizeof(sendRecvMsgFunc.sendAddr)), + &n, nil, 0) + }) + return sendRecvMsgFunc.err +} + +func WSASendMsg(fd Handle, msg *WSAMsg, flags uint32, bytesSent *uint32, overlapped *Overlapped, croutine *byte) error { + err := loadWSASendRecvMsg() + if err != nil { + return err + } + r1, _, e1 := syscall.Syscall6(sendRecvMsgFunc.sendAddr, 6, uintptr(fd), uintptr(unsafe.Pointer(msg)), uintptr(flags), uintptr(unsafe.Pointer(bytesSent)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine))) + if r1 == socket_error { + if e1 != 0 { + err = errnoErr(e1) + } else { + err = syscall.EINVAL + } + } + return err +} + +func WSARecvMsg(fd Handle, msg *WSAMsg, bytesReceived *uint32, overlapped *Overlapped, croutine *byte) error { + err := loadWSASendRecvMsg() + if err != nil { + return err + } + r1, _, e1 := syscall.Syscall6(sendRecvMsgFunc.recvAddr, 5, uintptr(fd), uintptr(unsafe.Pointer(msg)), uintptr(unsafe.Pointer(bytesReceived)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine)), 0) + if r1 == socket_error { + if e1 != 0 { + err = errnoErr(e1) + } else { + err = syscall.EINVAL + } + } + return err +} + // Invented structures to support what package os expects. type Rusage struct { CreationTime Filetime |
