sys_aix.go

Documentation: golang.org/x/net/ipv6

     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
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