1/* Copyright (C) 1991-1999, 2000, 2004 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19/* Linux version. */ 20 21#ifndef _NETINET_IN_H 22# error "Never use <bits/in.h> directly; include <netinet/in.h> instead." 23#endif 24 25/* Options for use with `getsockopt' and `setsockopt' at the IP level. 26 The first word in the comment at the right is the data type used; 27 "bool" means a boolean value stored in an `int'. */ 28#define IP_OPTIONS 4 /* ip_opts; IP per-packet options. */ 29#define IP_HDRINCL 3 /* int; Header is included with data. */ 30#define IP_TOS 1 /* int; IP type of service and precedence. */ 31#define IP_TTL 2 /* int; IP time to live. */ 32#define IP_RECVOPTS 6 /* bool; Receive all IP options w/datagram. */ 33/* For BSD compatibility. */ 34#define IP_RECVRETOPTS IP_RETOPTS /* bool; Receive IP options for response. */ 35#define IP_RETOPTS 7 /* ip_opts; Set/get IP per-packet options. */ 36#define IP_MULTICAST_IF 32 /* in_addr; set/get IP multicast i/f */ 37#define IP_MULTICAST_TTL 33 /* u_char; set/get IP multicast ttl */ 38#define IP_MULTICAST_LOOP 34 /* i_char; set/get IP multicast loopback */ 39#define IP_ADD_MEMBERSHIP 35 /* ip_mreq; add an IP group membership */ 40#define IP_DROP_MEMBERSHIP 36 /* ip_mreq; drop an IP group membership */ 41#define IP_UNBLOCK_SOURCE 37 /* ip_mreq_source: unblock data from source */ 42#define IP_BLOCK_SOURCE 38 /* ip_mreq_source: block data from source */ 43#define IP_ADD_SOURCE_MEMBERSHIP 39 /* ip_mreq_source: join source group */ 44#define IP_DROP_SOURCE_MEMBERSHIP 40 /* ip_mreq_source: leave source group */ 45#define IP_MSFILTER 41 46#define MCAST_JOIN_GROUP 42 /* group_req: join any-source group */ 47#define MCAST_BLOCK_SOURCE 43 /* group_source_req: block from given group */ 48#define MCAST_UNBLOCK_SOURCE 44 /* group_source_req: unblock from given group*/ 49#define MCAST_LEAVE_GROUP 45 /* group_req: leave any-source group */ 50#define MCAST_JOIN_SOURCE_GROUP 46 /* group_source_req: join source-spec gr */ 51#define MCAST_LEAVE_SOURCE_GROUP 47 /* group_source_req: leave source-spec gr*/ 52#define MCAST_MSFILTER 48 53 54#define MCAST_EXCLUDE 0 55#define MCAST_INCLUDE 1 56 57#define IP_ROUTER_ALERT 5 /* bool */ 58#define IP_PKTINFO 8 /* bool */ 59#define IP_PKTOPTIONS 9 60#define IP_PMTUDISC 10 /* obsolete name? */ 61#define IP_MTU_DISCOVER 10 /* int; see below */ 62#define IP_RECVERR 11 /* bool */ 63#define IP_RECVTTL 12 /* bool */ 64#define IP_RECVTOS 13 /* bool */ 65 66 67/* IP_MTU_DISCOVER arguments. */ 68#define IP_PMTUDISC_DONT 0 /* Never send DF frames. */ 69#define IP_PMTUDISC_WANT 1 /* Use per route hints. */ 70#define IP_PMTUDISC_DO 2 /* Always DF. */ 71 72/* To select the IP level. */ 73#define SOL_IP 0 74 75#define IP_DEFAULT_MULTICAST_TTL 1 76#define IP_DEFAULT_MULTICAST_LOOP 1 77#define IP_MAX_MEMBERSHIPS 20 78 79/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS. 80 The `ip_dst' field is used for the first-hop gateway when using a 81 source route (this gets put into the header proper). */ 82struct ip_opts 83 { 84 struct in_addr ip_dst; /* First hop; zero without source route. */ 85 char ip_opts[40]; /* Actually variable in size. */ 86 }; 87 88/* Like `struct ip_mreq' but including interface specification by index. */ 89struct ip_mreqn 90 { 91 struct in_addr imr_multiaddr; /* IP multicast address of group */ 92 struct in_addr imr_address; /* local IP address of interface */ 93 int imr_ifindex; /* Interface index */ 94 }; 95 96/* Structure used for IP_PKTINFO. */ 97struct in_pktinfo 98 { 99 int ipi_ifindex; /* Interface index */ 100 struct in_addr ipi_spec_dst; /* Routing destination address */ 101 struct in_addr ipi_addr; /* Header destination address */ 102 }; 103 104#ifdef __UCLIBC_HAS_IPV6__ 105/* Options for use with `getsockopt' and `setsockopt' at the IPv6 level. 106 The first word in the comment at the right is the data type used; 107 "bool" means a boolean value stored in an `int'. */ 108#define IPV6_ADDRFORM 1 109#define IPV6_2292PKTINFO 2 110#define IPV6_2292HOPOPTS 3 111#define IPV6_2292DSTOPTS 4 112#define IPV6_2292RTHDR 5 113#define IPV6_2292PKTOPTIONS 6 114#define IPV6_CHECKSUM 7 115#define IPV6_2292HOPLIMIT 8 116 117#define SCM_SRCRT IPV6_RXSRCRT 118 119#define IPV6_NEXTHOP 9 120#define IPV6_AUTHHDR 10 121#define IPV6_UNICAST_HOPS 16 122#define IPV6_MULTICAST_IF 17 123#define IPV6_MULTICAST_HOPS 18 124#define IPV6_MULTICAST_LOOP 19 125#define IPV6_JOIN_GROUP 20 126#define IPV6_LEAVE_GROUP 21 127#define IPV6_ROUTER_ALERT 22 128#define IPV6_MTU_DISCOVER 23 129#define IPV6_MTU 24 130#define IPV6_RECVERR 25 131#define IPV6_V6ONLY 26 132#define IPV6_JOIN_ANYCAST 27 133#define IPV6_LEAVE_ANYCAST 28 134#define IPV6_IPSEC_POLICY 34 135#define IPV6_XFRM_POLICY 35 136 137#define IPV6_RECVPKTINFO 49 138#define IPV6_PKTINFO 50 139#define IPV6_RECVHOPLIMIT 51 140#define IPV6_HOPLIMIT 52 141#define IPV6_RECVHOPOPTS 53 142#define IPV6_HOPOPTS 54 143#define IPV6_RTHDRDSTOPTS 55 144#define IPV6_RECVRTHDR 56 145#define IPV6_RTHDR 57 146#define IPV6_RECVDSTOPTS 58 147#define IPV6_DSTOPTS 59 148 149#define IPV6_RECVTCLASS 66 150#define IPV6_TCLASS 67 151 152/* Obsolete synonyms for the above. */ 153#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP 154#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP 155#define IPV6_RXHOPOPTS IPV6_HOPOPTS 156#define IPV6_RXDSTOPTS IPV6_DSTOPTS 157 158/* IPV6_MTU_DISCOVER values. */ 159#define IPV6_PMTUDISC_DONT 0 /* Never send DF frames. */ 160#define IPV6_PMTUDISC_WANT 1 /* Use per route hints. */ 161#define IPV6_PMTUDISC_DO 2 /* Always DF. */ 162 163/* Socket level values for IPv6. */ 164#define SOL_IPV6 41 165#define SOL_ICMPV6 58 166 167/* Routing header options for IPv6. */ 168#define IPV6_RTHDR_LOOSE 0 /* Hop doesn't need to be neighbour. */ 169#define IPV6_RTHDR_STRICT 1 /* Hop must be a neighbour. */ 170 171#define IPV6_RTHDR_TYPE_0 0 /* IPv6 Routing header type 0. */ 172#endif /* __UCLIBC_HAS_IPV6__ */ 173