sockopt.go (1858B)
1 // Copyright 2014 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 "golang.org/x/net/internal/socket" 8 9 // Sticky socket options 10 const ( 11 ssoTrafficClass = iota // header field for unicast packet, RFC 3542 12 ssoHopLimit // header field for unicast packet, RFC 3493 13 ssoMulticastInterface // outbound interface for multicast packet, RFC 3493 14 ssoMulticastHopLimit // header field for multicast packet, RFC 3493 15 ssoMulticastLoopback // loopback for multicast packet, RFC 3493 16 ssoReceiveTrafficClass // header field on received packet, RFC 3542 17 ssoReceiveHopLimit // header field on received packet, RFC 2292 or 3542 18 ssoReceivePacketInfo // incbound or outbound packet path, RFC 2292 or 3542 19 ssoReceivePathMTU // path mtu, RFC 3542 20 ssoPathMTU // path mtu, RFC 3542 21 ssoChecksum // packet checksum, RFC 2292 or 3542 22 ssoICMPFilter // icmp filter, RFC 2292 or 3542 23 ssoJoinGroup // any-source multicast, RFC 3493 24 ssoLeaveGroup // any-source multicast, RFC 3493 25 ssoJoinSourceGroup // source-specific multicast 26 ssoLeaveSourceGroup // source-specific multicast 27 ssoBlockSourceGroup // any-source or source-specific multicast 28 ssoUnblockSourceGroup // any-source or source-specific multicast 29 ssoAttachFilter // attach BPF for filtering inbound traffic 30 ) 31 32 // Sticky socket option value types 33 const ( 34 ssoTypeIPMreq = iota + 1 35 ssoTypeGroupReq 36 ssoTypeGroupSourceReq 37 ) 38 39 // A sockOpt represents a binding for sticky socket option. 40 type sockOpt struct { 41 socket.Option 42 typ int // hint for option value type; optional 43 }