You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
1.9 KiB
75 lines
1.9 KiB
// 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) |
|
}
|
|
|