diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall_linux.go')
| -rw-r--r-- | vendor/golang.org/x/sys/unix/syscall_linux.go | 264 |
1 files changed, 77 insertions, 187 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall_linux.go b/vendor/golang.org/x/sys/unix/syscall_linux.go index c61c963b7..41b91fdfb 100644 --- a/vendor/golang.org/x/sys/unix/syscall_linux.go +++ b/vendor/golang.org/x/sys/unix/syscall_linux.go @@ -70,192 +70,7 @@ func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) { // ioctl itself should not be exposed directly, but additional get/set // functions for specific types are permissible. - -// IoctlRetInt performs an ioctl operation specified by req on a device -// associated with opened file descriptor fd, and returns a non-negative -// integer that is returned by the ioctl syscall. -func IoctlRetInt(fd int, req uint) (int, error) { - ret, _, err := Syscall(SYS_IOCTL, uintptr(fd), uintptr(req), 0) - if err != 0 { - return 0, err - } - return int(ret), nil -} - -func IoctlSetRTCTime(fd int, value *RTCTime) error { - err := ioctl(fd, RTC_SET_TIME, uintptr(unsafe.Pointer(value))) - runtime.KeepAlive(value) - return err -} - -func IoctlSetRTCWkAlrm(fd int, value *RTCWkAlrm) error { - err := ioctl(fd, RTC_WKALM_SET, uintptr(unsafe.Pointer(value))) - runtime.KeepAlive(value) - return err -} - -func IoctlGetUint32(fd int, req uint) (uint32, error) { - var value uint32 - err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) - return value, err -} - -func IoctlGetRTCTime(fd int) (*RTCTime, error) { - var value RTCTime - err := ioctl(fd, RTC_RD_TIME, uintptr(unsafe.Pointer(&value))) - return &value, err -} - -type ifreqEthtool struct { - name [IFNAMSIZ]byte - data unsafe.Pointer -} - -// IoctlGetEthtoolDrvinfo fetches ethtool driver information for the network -// device specified by ifname. -func IoctlGetEthtoolDrvinfo(fd int, ifname string) (*EthtoolDrvinfo, error) { - // Leave room for terminating NULL byte. - if len(ifname) >= IFNAMSIZ { - return nil, EINVAL - } - - value := EthtoolDrvinfo{ - Cmd: ETHTOOL_GDRVINFO, - } - ifreq := ifreqEthtool{ - data: unsafe.Pointer(&value), - } - copy(ifreq.name[:], ifname) - err := ioctl(fd, SIOCETHTOOL, uintptr(unsafe.Pointer(&ifreq))) - runtime.KeepAlive(ifreq) - return &value, err -} - -// IoctlGetWatchdogInfo fetches information about a watchdog device from the -// Linux watchdog API. For more information, see: -// https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html. -func IoctlGetWatchdogInfo(fd int) (*WatchdogInfo, error) { - var value WatchdogInfo - err := ioctl(fd, WDIOC_GETSUPPORT, uintptr(unsafe.Pointer(&value))) - return &value, err -} - -func IoctlGetRTCWkAlrm(fd int) (*RTCWkAlrm, error) { - var value RTCWkAlrm - err := ioctl(fd, RTC_WKALM_RD, uintptr(unsafe.Pointer(&value))) - return &value, err -} - -// IoctlFileCloneRange performs an FICLONERANGE ioctl operation to clone the -// range of data conveyed in value to the file associated with the file -// descriptor destFd. See the ioctl_ficlonerange(2) man page for details. -func IoctlFileCloneRange(destFd int, value *FileCloneRange) error { - err := ioctl(destFd, FICLONERANGE, uintptr(unsafe.Pointer(value))) - runtime.KeepAlive(value) - return err -} - -// IoctlFileClone performs an FICLONE ioctl operation to clone the entire file -// associated with the file description srcFd to the file associated with the -// file descriptor destFd. See the ioctl_ficlone(2) man page for details. -func IoctlFileClone(destFd, srcFd int) error { - return ioctl(destFd, FICLONE, uintptr(srcFd)) -} - -type FileDedupeRange struct { - Src_offset uint64 - Src_length uint64 - Reserved1 uint16 - Reserved2 uint32 - Info []FileDedupeRangeInfo -} - -type FileDedupeRangeInfo struct { - Dest_fd int64 - Dest_offset uint64 - Bytes_deduped uint64 - Status int32 - Reserved uint32 -} - -// IoctlFileDedupeRange performs an FIDEDUPERANGE ioctl operation to share the -// range of data conveyed in value from the file associated with the file -// descriptor srcFd to the value.Info destinations. See the -// ioctl_fideduperange(2) man page for details. -func IoctlFileDedupeRange(srcFd int, value *FileDedupeRange) error { - buf := make([]byte, SizeofRawFileDedupeRange+ - len(value.Info)*SizeofRawFileDedupeRangeInfo) - rawrange := (*RawFileDedupeRange)(unsafe.Pointer(&buf[0])) - rawrange.Src_offset = value.Src_offset - rawrange.Src_length = value.Src_length - rawrange.Dest_count = uint16(len(value.Info)) - rawrange.Reserved1 = value.Reserved1 - rawrange.Reserved2 = value.Reserved2 - - for i := range value.Info { - rawinfo := (*RawFileDedupeRangeInfo)(unsafe.Pointer( - uintptr(unsafe.Pointer(&buf[0])) + uintptr(SizeofRawFileDedupeRange) + - uintptr(i*SizeofRawFileDedupeRangeInfo))) - rawinfo.Dest_fd = value.Info[i].Dest_fd - rawinfo.Dest_offset = value.Info[i].Dest_offset - rawinfo.Bytes_deduped = value.Info[i].Bytes_deduped - rawinfo.Status = value.Info[i].Status - rawinfo.Reserved = value.Info[i].Reserved - } - - err := ioctl(srcFd, FIDEDUPERANGE, uintptr(unsafe.Pointer(&buf[0]))) - - // Output - for i := range value.Info { - rawinfo := (*RawFileDedupeRangeInfo)(unsafe.Pointer( - uintptr(unsafe.Pointer(&buf[0])) + uintptr(SizeofRawFileDedupeRange) + - uintptr(i*SizeofRawFileDedupeRangeInfo))) - value.Info[i].Dest_fd = rawinfo.Dest_fd - value.Info[i].Dest_offset = rawinfo.Dest_offset - value.Info[i].Bytes_deduped = rawinfo.Bytes_deduped - value.Info[i].Status = rawinfo.Status - value.Info[i].Reserved = rawinfo.Reserved - } - - return err -} - -// IoctlWatchdogKeepalive issues a keepalive ioctl to a watchdog device. For -// more information, see: -// https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html. -func IoctlWatchdogKeepalive(fd int) error { - return ioctl(fd, WDIOC_KEEPALIVE, 0) -} - -func IoctlHIDGetDesc(fd int, value *HIDRawReportDescriptor) error { - err := ioctl(fd, HIDIOCGRDESC, uintptr(unsafe.Pointer(value))) - runtime.KeepAlive(value) - return err -} - -func IoctlHIDGetRawInfo(fd int) (*HIDRawDevInfo, error) { - var value HIDRawDevInfo - err := ioctl(fd, HIDIOCGRAWINFO, uintptr(unsafe.Pointer(&value))) - return &value, err -} - -func IoctlHIDGetRawName(fd int) (string, error) { - var value [_HIDIOCGRAWNAME_LEN]byte - err := ioctl(fd, _HIDIOCGRAWNAME, uintptr(unsafe.Pointer(&value[0]))) - return ByteSliceToString(value[:]), err -} - -func IoctlHIDGetRawPhys(fd int) (string, error) { - var value [_HIDIOCGRAWPHYS_LEN]byte - err := ioctl(fd, _HIDIOCGRAWPHYS, uintptr(unsafe.Pointer(&value[0]))) - return ByteSliceToString(value[:]), err -} - -func IoctlHIDGetRawUniq(fd int) (string, error) { - var value [_HIDIOCGRAWUNIQ_LEN]byte - err := ioctl(fd, _HIDIOCGRAWUNIQ, uintptr(unsafe.Pointer(&value[0]))) - return ByteSliceToString(value[:]), err -} +// These are defined in ioctl.go and ioctl_linux.go. //sys Linkat(olddirfd int, oldpath string, newdirfd int, newpath string, flags int) (err error) @@ -1089,6 +904,46 @@ func (sa *SockaddrIUCV) sockaddr() (unsafe.Pointer, _Socklen, error) { return unsafe.Pointer(&sa.raw), SizeofSockaddrIUCV, nil } +type SockaddrNFC struct { + DeviceIdx uint32 + TargetIdx uint32 + NFCProtocol uint32 + raw RawSockaddrNFC +} + +func (sa *SockaddrNFC) sockaddr() (unsafe.Pointer, _Socklen, error) { + sa.raw.Sa_family = AF_NFC + sa.raw.Dev_idx = sa.DeviceIdx + sa.raw.Target_idx = sa.TargetIdx + sa.raw.Nfc_protocol = sa.NFCProtocol + return unsafe.Pointer(&sa.raw), SizeofSockaddrNFC, nil +} + +type SockaddrNFCLLCP struct { + DeviceIdx uint32 + TargetIdx uint32 + NFCProtocol uint32 + DestinationSAP uint8 + SourceSAP uint8 + ServiceName string + raw RawSockaddrNFCLLCP +} + +func (sa *SockaddrNFCLLCP) sockaddr() (unsafe.Pointer, _Socklen, error) { + sa.raw.Sa_family = AF_NFC + sa.raw.Dev_idx = sa.DeviceIdx + sa.raw.Target_idx = sa.TargetIdx + sa.raw.Nfc_protocol = sa.NFCProtocol + sa.raw.Dsap = sa.DestinationSAP + sa.raw.Ssap = sa.SourceSAP + if len(sa.ServiceName) > len(sa.raw.Service_name) { + return nil, 0, EINVAL + } + copy(sa.raw.Service_name[:], sa.ServiceName) + sa.raw.SetServiceNameLen(len(sa.ServiceName)) + return unsafe.Pointer(&sa.raw), SizeofSockaddrNFCLLCP, nil +} + var socketProtocol = func(fd int) (int, error) { return GetsockoptInt(fd, SOL_SOCKET, SO_PROTOCOL) } @@ -1329,6 +1184,37 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { } return sa, nil } + case AF_NFC: + proto, err := socketProtocol(fd) + if err != nil { + return nil, err + } + switch proto { + case NFC_SOCKPROTO_RAW: + pp := (*RawSockaddrNFC)(unsafe.Pointer(rsa)) + sa := &SockaddrNFC{ + DeviceIdx: pp.Dev_idx, + TargetIdx: pp.Target_idx, + NFCProtocol: pp.Nfc_protocol, + } + return sa, nil + case NFC_SOCKPROTO_LLCP: + pp := (*RawSockaddrNFCLLCP)(unsafe.Pointer(rsa)) + if uint64(pp.Service_name_len) > uint64(len(pp.Service_name)) { + return nil, EINVAL + } + sa := &SockaddrNFCLLCP{ + DeviceIdx: pp.Dev_idx, + TargetIdx: pp.Target_idx, + NFCProtocol: pp.Nfc_protocol, + DestinationSAP: pp.Dsap, + SourceSAP: pp.Ssap, + ServiceName: string(pp.Service_name[:pp.Service_name_len]), + } + return sa, nil + default: + return nil, EINVAL + } } return nil, EAFNOSUPPORT } @@ -1336,7 +1222,11 @@ func anyToSockaddr(fd int, rsa *RawSockaddrAny) (Sockaddr, error) { func Accept(fd int) (nfd int, sa Sockaddr, err error) { var rsa RawSockaddrAny var len _Socklen = SizeofSockaddrAny - nfd, err = accept(fd, &rsa, &len) + // Try accept4 first for Android, then try accept for kernel older than 2.6.28 + nfd, err = accept4(fd, &rsa, &len, 0) + if err == ENOSYS { + nfd, err = accept(fd, &rsa, &len) + } if err != nil { return } |