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