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74 lines
3.8 KiB
74 lines
3.8 KiB
// Copyright 2013 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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package ipv6 |
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import ( |
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"net" |
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"syscall" |
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"unsafe" |
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"golang.org/x/net/internal/iana" |
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"golang.org/x/net/internal/socket" |
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) |
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var ( |
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ctlOpts = [ctlMax]ctlOpt{ |
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ctlTrafficClass: {sysIPV6_TCLASS, 4, marshalTrafficClass, parseTrafficClass}, |
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ctlHopLimit: {sysIPV6_HOPLIMIT, 4, marshalHopLimit, parseHopLimit}, |
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ctlPacketInfo: {sysIPV6_PKTINFO, sizeofInet6Pktinfo, marshalPacketInfo, parsePacketInfo}, |
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ctlPathMTU: {sysIPV6_PATHMTU, sizeofIPv6Mtuinfo, marshalPathMTU, parsePathMTU}, |
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} |
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sockOpts = map[int]*sockOpt{ |
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ssoTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_TCLASS, Len: 4}}, |
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ssoHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_UNICAST_HOPS, Len: 4}}, |
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ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_IF, Len: 4}}, |
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ssoMulticastHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_HOPS, Len: 4}}, |
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ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_MULTICAST_LOOP, Len: 4}}, |
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ssoReceiveTrafficClass: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVTCLASS, Len: 4}}, |
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ssoReceiveHopLimit: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVHOPLIMIT, Len: 4}}, |
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ssoReceivePacketInfo: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPKTINFO, Len: 4}}, |
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ssoReceivePathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_RECVPATHMTU, Len: 4}}, |
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ssoPathMTU: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysIPV6_PATHMTU, Len: sizeofIPv6Mtuinfo}}, |
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ssoChecksum: {Option: socket.Option{Level: iana.ProtocolReserved, Name: sysIPV6_CHECKSUM, Len: 4}}, |
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ssoICMPFilter: {Option: socket.Option{Level: iana.ProtocolIPv6ICMP, Name: sysICMPV6_FILTER, Len: sizeofICMPv6Filter}}, |
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ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, |
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ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_GROUP, Len: sizeofGroupReq}, typ: ssoTypeGroupReq}, |
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ssoJoinSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_JOIN_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, |
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ssoLeaveSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_LEAVE_SOURCE_GROUP, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, |
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ssoBlockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_BLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, |
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ssoUnblockSourceGroup: {Option: socket.Option{Level: iana.ProtocolIPv6, Name: sysMCAST_UNBLOCK_SOURCE, Len: sizeofGroupSourceReq}, typ: ssoTypeGroupSourceReq}, |
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ssoAttachFilter: {Option: socket.Option{Level: sysSOL_SOCKET, Name: sysSO_ATTACH_FILTER, Len: sizeofSockFprog}}, |
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} |
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) |
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func (sa *sockaddrInet6) setSockaddr(ip net.IP, i int) { |
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sa.Family = syscall.AF_INET6 |
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copy(sa.Addr[:], ip) |
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sa.Scope_id = uint32(i) |
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} |
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func (pi *inet6Pktinfo) setIfindex(i int) { |
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pi.Ifindex = int32(i) |
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} |
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func (mreq *ipv6Mreq) setIfindex(i int) { |
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mreq.Ifindex = int32(i) |
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} |
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func (gr *groupReq) setGroup(grp net.IP) { |
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sa := (*sockaddrInet6)(unsafe.Pointer(&gr.Group)) |
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sa.Family = syscall.AF_INET6 |
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copy(sa.Addr[:], grp) |
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} |
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func (gsr *groupSourceReq) setSourceGroup(grp, src net.IP) { |
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sa := (*sockaddrInet6)(unsafe.Pointer(&gsr.Group)) |
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sa.Family = syscall.AF_INET6 |
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copy(sa.Addr[:], grp) |
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sa = (*sockaddrInet6)(unsafe.Pointer(&gsr.Source)) |
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sa.Family = syscall.AF_INET6 |
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copy(sa.Addr[:], src) |
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}
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