| // Copyright 2014 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package ipv4 |
| |
| import ( |
| "net" |
| "syscall" |
| ) |
| |
| var ( |
| ctlOpts = [ctlMax]ctlOpt{ |
| ctlTTL: {sysIP_RECVTTL, 1, marshalTTL, parseTTL}, |
| ctlDst: {sysIP_RECVDSTADDR, net.IPv4len, marshalDst, parseDst}, |
| ctlInterface: {sysIP_RECVIF, syscall.SizeofSockaddrDatalink, marshalInterface, parseInterface}, |
| } |
| |
| sockOpts = [ssoMax]sockOpt{ |
| ssoTOS: {sysIP_TOS, ssoTypeInt}, |
| ssoTTL: {sysIP_TTL, ssoTypeInt}, |
| ssoMulticastTTL: {sysIP_MULTICAST_TTL, ssoTypeByte}, |
| ssoMulticastInterface: {sysIP_MULTICAST_IF, ssoTypeInterface}, |
| ssoMulticastLoopback: {sysIP_MULTICAST_LOOP, ssoTypeByte}, |
| ssoReceiveTTL: {sysIP_RECVTTL, ssoTypeInt}, |
| ssoReceiveDst: {sysIP_RECVDSTADDR, ssoTypeInt}, |
| ssoReceiveInterface: {sysIP_RECVIF, ssoTypeInt}, |
| ssoHeaderPrepend: {sysIP_HDRINCL, ssoTypeInt}, |
| ssoJoinGroup: {sysIP_ADD_MEMBERSHIP, ssoTypeIPMreq}, |
| ssoLeaveGroup: {sysIP_DROP_MEMBERSHIP, ssoTypeIPMreq}, |
| } |
| ) |
