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net, syscall: add IPv4 multicast helpers for windows

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Also re-enable simple IPv4 multicast testing on windows.

R=alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/5605048
This commit is contained in:
Mikio Hara 2012-02-01 14:14:04 +09:00
parent 63f68a2eda
commit 804f1882c5
4 changed files with 39 additions and 7 deletions
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2
src/pkg/net/multicast_test.go
View File

@ -86,7 +86,7 @@ func TestListenMulticastUDP(t *testing.T) {
func TestSimpleListenMulticastUDP(t *testing.T) {
switch runtime.GOOS {
case "plan9", "windows":
case "plan9":
return
}

36
src/pkg/net/sockoptip_windows.go
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@ -7,6 +7,7 @@
package net
import (
"os"
"syscall"
)
@ -16,8 +17,19 @@ func ipv4MulticastInterface(fd *netFD) (*Interface, error) {
}
func setIPv4MulticastInterface(fd *netFD, ifi *Interface) error {
// TODO: Implement this
return syscall.EWINDOWS
ip, err := interfaceToIPv4Addr(ifi)
if err != nil {
return os.NewSyscallError("setsockopt", err)
}
var x [4]byte
copy(x[:], ip.To4())
fd.incref()
defer fd.decref()
err = syscall.SetsockoptInet4Addr(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_IF, x)
if err != nil {
return os.NewSyscallError("setsockopt", err)
}
return nil
}
func ipv4MulticastTTL(fd *netFD) (int, error) {
@ -26,8 +38,14 @@ func ipv4MulticastTTL(fd *netFD) (int, error) {
}
func setIPv4MulticastTTL(fd *netFD, v int) error {
// TODO: Implement this
return syscall.EWINDOWS
fd.incref()
defer fd.decref()
err := syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_TTL, v)
if err != nil {
return os.NewSyscallError("setsockopt", err)
}
return nil
}
func ipv4MulticastLoopback(fd *netFD) (bool, error) {
@ -36,8 +54,14 @@ func ipv4MulticastLoopback(fd *netFD) (bool, error) {
}
func setIPv4MulticastLoopback(fd *netFD, v bool) error {
// TODO: Implement this
return syscall.EWINDOWS
fd.incref()
defer fd.decref()
err := syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_LOOP, boolint(v))
if err != nil {
return os.NewSyscallError("setsockopt", err)
}
return nil
}
func ipv4ReceiveInterface(fd *netFD) (bool, error) {

3
src/pkg/syscall/syscall_windows.go
View File

@ -657,6 +657,9 @@ type IPv6Mreq struct {
func GetsockoptInt(fd Handle, level, opt int) (int, error) { return -1, EWINDOWS }
func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) { return EWINDOWS }
func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) {
return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4)
}
func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) {
return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq)))
}

5
src/pkg/syscall/ztypes_windows.go
View File

@ -389,8 +389,13 @@ const (
SO_SNDBUF = 0x1001
SO_UPDATE_ACCEPT_CONTEXT = 0x700b
// cf. http://support.microsoft.com/default.aspx?scid=kb;en-us;257460
IP_TOS = 0x3
IP_TTL = 0x4
IP_MULTICAST_IF = 0x9
IP_MULTICAST_TTL = 0xa
IP_MULTICAST_LOOP = 0xb
IP_ADD_MEMBERSHIP = 0xc
IP_DROP_MEMBERSHIP = 0xd