Exemple #1
0
func joinIPv6Group(fd int, ifi *net.Interface, grp net.IP) error {
	mreq := syscall.IPv6Mreq{}
	copy(mreq.Multiaddr[:], grp)
	if ifi != nil {
		mreq.Interface = uint32(ifi.Index)
	}
	return os.NewSyscallError("setsockopt", syscall.SetsockoptIPv6Mreq(fd, ianaProtocolIPv6, syscall.IPV6_JOIN_GROUP, &mreq))
}
Exemple #2
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func leaveIPv6Group(fd *netFD, ifi *Interface, ip IP) error {
	mreq := &syscall.IPv6Mreq{}
	copy(mreq.Multiaddr[:], ip)
	if ifi != nil {
		mreq.Interface = uint32(ifi.Index)
	}
	fd.incref()
	defer fd.decref()
	return os.NewSyscallError("setsockopt", syscall.SetsockoptIPv6Mreq(fd.sysfd, syscall.IPPROTO_IPV6, syscall.IPV6_LEAVE_GROUP, mreq))
}
Exemple #3
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func leaveIPv6GroupUDP(c *UDPConn, ifi *Interface, ip IP) error {
	mreq := &syscall.IPv6Mreq{}
	copy(mreq.Multiaddr[:], ip)
	if ifi != nil {
		mreq.Interface = uint32(ifi.Index)
	}
	if err := os.NewSyscallError("setsockopt", syscall.SetsockoptIPv6Mreq(c.fd.sysfd, syscall.IPPROTO_IPV6, syscall.IPV6_LEAVE_GROUP, mreq)); err != nil {
		return &OpError{"leaveipv6group", "udp", &IPAddr{ip}, err}
	}
	return nil
}
func joinIPv6Group(fd *netFD, ifi *Interface, ip IP) error {
	mreq := &syscall.IPv6Mreq{}
	copy(mreq.Multiaddr[:], ip)
	if ifi != nil {
		mreq.Interface = uint32(ifi.Index)
	}
	if err := fd.incref(false); err != nil {
		return err
	}
	defer fd.decref()
	return os.NewSyscallError("setsockopt", syscall.SetsockoptIPv6Mreq(fd.sysfd, syscall.IPPROTO_IPV6, syscall.IPV6_JOIN_GROUP, mreq))
}
Exemple #5
0
// JoinMulticastIPv6 joins the multicast group address given by gaddr. laddr specifies which
// network interface to use when joining the group.
func JoinMulticastIPv6(c *net.IPConn, gaddr, laddr net.IP) error {
	f, err := c.File()
	if err != nil {
		return err
	}
	defer f.Close()

	mreq := &syscall.IPv6Mreq{}
	copy(mreq.Multiaddr[:], gaddr.To16())
	iface, err := findInterface(laddr)
	if err != nil {
		return err
	}
	mreq.Interface = uint32(iface.Index)

	err = syscall.SetsockoptIPv6Mreq(int(f.Fd()), syscall.IPPROTO_IPV6, syscall.IPV6_JOIN_GROUP, mreq)
	if err != nil {
		return err
	}
	return nil
}