1
// Copyright 2012 The Go Authors. All rights reserved.
2
// Use of this source code is governed by a BSD-style
3
// license that can be found in the LICENSE file.
14
// Please refer to the online manual;
15
// http://msdn.microsoft.com/en-us/library/windows/desktop/ms738586(v=vs.85).aspx
17
func ipv4TOS(fd syscall.Handle) (int, error) {
20
if err := syscall.Getsockopt(fd, ianaProtocolIP, sysSockoptTOS, (*byte)(unsafe.Pointer(&v)), &l); err != nil {
21
return 0, os.NewSyscallError("getsockopt", err)
26
func setIPv4TOS(fd syscall.Handle, v int) error {
28
return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, ianaProtocolIP, sysSockoptTOS, (*byte)(unsafe.Pointer(&vv)), 4))
31
func ipv4TTL(fd syscall.Handle) (int, error) {
34
if err := syscall.Getsockopt(fd, ianaProtocolIP, sysSockoptTTL, (*byte)(unsafe.Pointer(&v)), &l); err != nil {
35
return 0, os.NewSyscallError("getsockopt", err)
40
func setIPv4TTL(fd syscall.Handle, v int) error {
42
return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, ianaProtocolIP, sysSockoptTTL, (*byte)(unsafe.Pointer(&vv)), 4))
45
func ipv4MulticastTTL(fd syscall.Handle) (int, error) {
48
if err := syscall.Getsockopt(fd, ianaProtocolIP, sysSockoptMulticastTTL, (*byte)(unsafe.Pointer(&v)), &l); err != nil {
49
return 0, os.NewSyscallError("getsockopt", err)
54
func setIPv4MulticastTTL(fd syscall.Handle, v int) error {
56
return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, ianaProtocolIP, sysSockoptMulticastTTL, (*byte)(unsafe.Pointer(&vv)), 4))
59
func ipv4ReceiveTTL(fd syscall.Handle) (bool, error) {
60
// NOTE: Not supported yet on any Windows
61
return false, syscall.EWINDOWS
64
func setIPv4ReceiveTTL(fd syscall.Handle, v bool) error {
65
// NOTE: Not supported yet on any Windows
66
return syscall.EWINDOWS
69
func ipv4ReceiveDestinationAddress(fd syscall.Handle) (bool, error) {
70
// TODO(mikio): Implement this for XP and beyond
71
return false, syscall.EWINDOWS
74
func setIPv4ReceiveDestinationAddress(fd syscall.Handle, v bool) error {
75
// TODO(mikio): Implement this for XP and beyond
76
return syscall.EWINDOWS
79
func ipv4HeaderPrepend(fd syscall.Handle) (bool, error) {
80
// TODO(mikio): Implement this for XP and beyond
81
return false, syscall.EWINDOWS
84
func setIPv4HeaderPrepend(fd syscall.Handle, v bool) error {
85
// TODO(mikio): Implement this for XP and beyond
86
return syscall.EWINDOWS
89
func ipv4ReceiveInterface(fd syscall.Handle) (bool, error) {
90
// TODO(mikio): Implement this for Vista and beyond
91
return false, syscall.EWINDOWS
94
func setIPv4ReceiveInterface(fd syscall.Handle, v bool) error {
95
// TODO(mikio): Implement this for Vista and beyond
96
return syscall.EWINDOWS
99
func ipv4MulticastInterface(fd syscall.Handle) (*net.Interface, error) {
102
if err := syscall.Getsockopt(fd, ianaProtocolIP, sysSockoptMulticastInterface, (*byte)(unsafe.Pointer(&v[0])), &l); err != nil {
103
return nil, os.NewSyscallError("getsockopt", err)
105
return netIP4ToInterface(net.IPv4(v[0], v[1], v[2], v[3]))
108
func setIPv4MulticastInterface(fd syscall.Handle, ifi *net.Interface) error {
109
ip, err := netInterfaceToIP4(ifi)
111
return os.NewSyscallError("setsockopt", err)
115
return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, ianaProtocolIP, sysSockoptMulticastInterface, (*byte)(unsafe.Pointer(&v[0])), 4))
118
func ipv4MulticastLoopback(fd syscall.Handle) (bool, error) {
121
if err := syscall.Getsockopt(fd, ianaProtocolIP, sysSockoptMulticastLoopback, (*byte)(unsafe.Pointer(&v)), &l); err != nil {
122
return false, os.NewSyscallError("getsockopt", err)
127
func setIPv4MulticastLoopback(fd syscall.Handle, v bool) error {
128
vv := int32(boolint(v))
129
return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, ianaProtocolIP, sysSockoptMulticastLoopback, (*byte)(unsafe.Pointer(&vv)), 4))
132
func joinIPv4Group(fd syscall.Handle, ifi *net.Interface, grp net.IP) error {
133
mreq := syscall.IPMreq{Multiaddr: [4]byte{grp[0], grp[1], grp[2], grp[3]}}
134
if err := setSysIPMreqInterface(&mreq, ifi); err != nil {
137
return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, ianaProtocolIP, sysSockoptJoinGroup, (*byte)(unsafe.Pointer(&mreq)), int32(unsafe.Sizeof(mreq))))
140
func leaveIPv4Group(fd syscall.Handle, ifi *net.Interface, grp net.IP) error {
141
mreq := syscall.IPMreq{Multiaddr: [4]byte{grp[0], grp[1], grp[2], grp[3]}}
142
if err := setSysIPMreqInterface(&mreq, ifi); err != nil {
145
return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, ianaProtocolIP, sysSockoptLeaveGroup, (*byte)(unsafe.Pointer(&mreq)), int32(unsafe.Sizeof(mreq))))