sys_zos.go (3595B)
1 // Copyright 2020 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 package ipv6 6 7 import ( 8 "net" 9 "syscall" 10 "unsafe" 11 12 "golang.org/x/net/internal/iana" 13 "golang.org/x/net/internal/socket" 14 15 "golang.org/x/sys/unix" 16 ) 17 18 var ( 19 ctlOpts = [ctlMax]ctlOpt{ 20 ctlHopLimit: {unix.IPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, 21 ctlPacketInfo: {unix.IPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, 22 ctlPathMTU: {unix.IPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, 23 } 24 25 sockOpts = map[int]*sockOpt{ 26 ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_TCLASS, Len: 4}}, 27 ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_UNICAST_HOPS, Len: 4}}, 28 ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_IF, Len: 4}}, 29 ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_HOPS, Len: 4}}, 30 ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_MULTICAST_LOOP, Len: 4}}, 31 ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVTCLASS, Len: 4}}, 32 ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVHOPLIMIT, Len: 4}}, 33 ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPKTINFO, Len: 4}}, 34 ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_RECVPATHMTU, Len: 4}}, 35 ssoChecksum: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.IPV6_CHECKSUM, Len: 4}}, 36 ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: unix.ICMP6_FILTER, Len: sizeofICMPv6Filter}}, 37 ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, 38 ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, 39 ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, 40 ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, 41 ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, 42 ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: unix.MCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, 43 } 44 ) 45 46 func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { 47 sa.Family = syscall.AF_INET6 48 copy(sa.Addr[:], ip) 49 sa.Scope_id = uint32(i) 50 } 51 52 func (pi *inet6Pktinfo) setIfindex(i int) { 53 pi.Ifindex = uint32(i) 54 } 55 56 func (gr *groupReq) setGroup(grp net.IP) { 57 sa := (*sockaddrInet6)(unsafe.Pointer(&gr.Group)) 58 sa.Family = syscall.AF_INET6 59 sa.Len = sizeofSockaddrInet6 60 copy(sa.Addr[:], grp) 61 } 62 63 func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { 64 sa := (*sockaddrInet6)(unsafe.Pointer(&gsr.Group)) 65 sa.Family = syscall.AF_INET6 66 sa.Len = sizeofSockaddrInet6 67 copy(sa.Addr[:], grp) 68 sa = (*sockaddrInet6)(unsafe.Pointer(&gsr.Source)) 69 sa.Family = syscall.AF_INET6 70 sa.Len = sizeofSockaddrInet6 71 copy(sa.Addr[:], src) 72 }