1// Copyright 2019 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// Added for go1.11 compatibility
6//go:build aix
7// +build aix
8
9package ipv6
10
11import (
12	"net"
13	"syscall"
14	"unsafe"
15
16	"golang.org/x/net/internal/iana"
17	"golang.org/x/net/internal/socket"
18
19	"golang.org/x/sys/unix"
20)
21
22var (
23	ctlOpts = [ctlMax]ctlOpt{
24		ctlTrafficClass: {unix.IPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass},
25		ctlHopLimit:     {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit},
26		ctlPacketInfo:   {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo},
27		ctlNextHop:      {unix.IPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop},
28		ctlPathMTU:      {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU},
29	}
30
31	sockOpts = map[int]*sockOpt{
32		ssoTrafficClass:        {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}},
33		ssoHopLimit:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}},
34		ssoMulticastInterface:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}},
35		ssoMulticastHopLimit:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}},
36		ssoMulticastLoopback:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}},
37		ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}},
38		ssoReceiveHopLimit:     {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}},
39		ssoReceivePacketInfo:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}},
40		ssoReceivePathMTU:      {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}},
41		ssoPathMTU:             {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}},
42		ssoChecksum:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}},
43		ssoICMPFilter:          {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}},
44		ssoJoinGroup:           {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
45		ssoLeaveGroup:          {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
46	}
47)
48
49func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) {
50	sa.Len = sizeofSockaddrInet6
51	sa.Family = syscall.AF_INET6
52	copy(sa.Addr[:], ip)
53	sa.Scope_id = uint32(i)
54}
55
56func (pi *inet6Pktinfo) setIfindex(i int) {
57	pi.Ifindex = int32(i)
58}
59
60func (mreq *ipv6Mreq) setIfindex(i int) {
61	mreq.Interface = uint32(i)
62}
63
64func (gr *groupReq) setGroup(grp net.IP) {
65	sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gr)) + 4))
66	sa.Len = sizeofSockaddrInet6
67	sa.Family = syscall.AF_INET6
68	copy(sa.Addr[:], grp)
69}
70
71func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) {
72	sa := (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 4))
73	sa.Len = sizeofSockaddrInet6
74	sa.Family = syscall.AF_INET6
75	copy(sa.Addr[:], grp)
76	sa = (*sockaddrInet6)(unsafe.Pointer(uintptr(unsafe.Pointer(gsr)) + 132))
77	sa.Len = sizeofSockaddrInet6
78	sa.Family = syscall.AF_INET6
79	copy(sa.Addr[:], src)
80}
81