sys_aix.go raw

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