// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ipv6
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import (
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"net"
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"syscall"
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"golang.org/x/net/internal/iana"
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"golang.org/x/net/internal/socket"
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)
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const (
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// See ws2tcpip.h.
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sysIPV6_UNICAST_HOPS = 0x4
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sysIPV6_MULTICAST_IF = 0x9
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sysIPV6_MULTICAST_HOPS = 0xa
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sysIPV6_MULTICAST_LOOP = 0xb
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sysIPV6_JOIN_GROUP = 0xc
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sysIPV6_LEAVE_GROUP = 0xd
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sysIPV6_PKTINFO = 0x13
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sizeofSockaddrInet6 = 0x1c
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sizeofIPv6Mreq = 0x14
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sizeofIPv6Mtuinfo = 0x20
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sizeofICMPv6Filter = 0
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)
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type sockaddrInet6 struct {
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Family uint16
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Port uint16
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Flowinfo uint32
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Addr [16]byte /* in6_addr */
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Scope_id uint32
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}
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type ipv6Mreq struct {
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Multiaddr [16]byte /* in6_addr */
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Interface uint32
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}
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type ipv6Mtuinfo struct {
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Addr sockaddrInet6
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Mtu uint32
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}
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type icmpv6Filter struct {
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// TODO(mikio): implement this
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}
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var (
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ctlOpts = [ctlMax]ctlOpt{}
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sockOpts = map[int]*sockOpt{
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ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_UNICAST_HOPS, Len: 4}},
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ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_IF, Len: 4}},
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ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_HOPS, Len: 4}},
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ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_LOOP, Len: 4}},
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ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
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ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
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}
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)
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func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) {
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sa.Family = syscall.AF_INET6
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copy(sa.Addr[:], ip)
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sa.Scope_id = uint32(i)
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}
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func (mreq *ipv6Mreq) setIfindex(i int) {
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mreq.Interface = uint32(i)
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}
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