| // 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}, | |
| } | |
| ) |