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sys_bsd.go (2886B)

      1 // Copyright 2013 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 //go:build dragonfly || netbsd || openbsd
      6 // +build dragonfly netbsd openbsd
      7 
      8 package ipv6
      9 
     10 import (
     11 	"net"
     12 	"syscall"
     13 
     14 	"golang.org/x/net/internal/iana"
     15 	"golang.org/x/net/internal/socket"
     16 
     17 	"golang.org/x/sys/unix"
     18 )
     19 
     20 var (
     21 	ctlOpts = [ctlMax]ctlOpt{
     22 		ctlTrafficClass: {unix.IPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass},
     23 		ctlHopLimit:     {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit},
     24 		ctlPacketInfo:   {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo},
     25 		ctlNextHop:      {unix.IPV6_NEXTHOP, sizeofSockaddrInet6, marshalNextHop, parseNextHop},
     26 		ctlPathMTU:      {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU},
     27 	}
     28 
     29 	sockOpts = map[int]*sockOpt{
     30 		ssoTrafficClass:        {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}},
     31 		ssoHopLimit:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}},
     32 		ssoMulticastInterface:  {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}},
     33 		ssoMulticastHopLimit:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}},
     34 		ssoMulticastLoopback:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}},
     35 		ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}},
     36 		ssoReceiveHopLimit:     {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}},
     37 		ssoReceivePacketInfo:   {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}},
     38 		ssoReceivePathMTU:      {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}},
     39 		ssoPathMTU:             {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}},
     40 		ssoChecksum:            {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}},
     41 		ssoICMPFilter:          {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}},
     42 		ssoJoinGroup:           {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_JOIN_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
     43 		ssoLeaveGroup:          {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_LEAVE_GROUP, Len: sizeofIPv6Mreq}, typ: ssoTypeIPMreq},
     44 	}
     45 )
     46 
     47 func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) {
     48 	sa.Len = sizeofSockaddrInet6
     49 	sa.Family = syscall.AF_INET6
     50 	copy(sa.Addr[:], ip)
     51 	sa.Scope_id = uint32(i)
     52 }
     53 
     54 func (pi *inet6Pktinfo) setIfindex(i int) {
     55 	pi.Ifindex = uint32(i)
     56 }
     57 
     58 func (mreq *ipv6Mreq) setIfindex(i int) {
     59 	mreq.Interface = uint32(i)
     60 }