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). */ 82 struct 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. */ 89 struct 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. */ 97 struct 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 /* Options for use with `getsockopt' and `setsockopt' at the IPv6 level. 105 The first word in the comment at the right is the data type used; 106 "bool" means a boolean value stored in an `int'. */ 107 #define IPV6_ADDRFORM 1 108 #define IPV6_2292PKTINFO 2 109 #define IPV6_2292HOPOPTS 3 110 #define IPV6_2292DSTOPTS 4 111 #define IPV6_2292RTHDR 5 112 #define IPV6_2292PKTOPTIONS 6 113 #define IPV6_CHECKSUM 7 114 #define IPV6_2292HOPLIMIT 8 115 116 #define SCM_SRCRT IPV6_RXSRCRT 117 118 #define IPV6_NEXTHOP 9 119 #define IPV6_AUTHHDR 10 120 #define IPV6_UNICAST_HOPS 16 121 #define IPV6_MULTICAST_IF 17 122 #define IPV6_MULTICAST_HOPS 18 123 #define IPV6_MULTICAST_LOOP 19 124 #define IPV6_JOIN_GROUP 20 125 #define IPV6_LEAVE_GROUP 21 126 #define IPV6_ROUTER_ALERT 22 127 #define IPV6_MTU_DISCOVER 23 128 #define IPV6_MTU 24 129 #define IPV6_RECVERR 25 130 #define IPV6_V6ONLY 26 131 #define IPV6_JOIN_ANYCAST 27 132 #define IPV6_LEAVE_ANYCAST 28 133 #define IPV6_IPSEC_POLICY 34 134 #define IPV6_XFRM_POLICY 35 135 136 #define IPV6_RECVPKTINFO 49 137 #define IPV6_PKTINFO 50 138 #define IPV6_RECVHOPLIMIT 51 139 #define IPV6_HOPLIMIT 52 140 #define IPV6_RECVHOPOPTS 53 141 #define IPV6_HOPOPTS 54 142 #define IPV6_RTHDRDSTOPTS 55 143 #define IPV6_RECVRTHDR 56 144 #define IPV6_RTHDR 57 145 #define IPV6_RECVDSTOPTS 58 146 #define IPV6_DSTOPTS 59 147 148 #define IPV6_RECVTCLASS 66 149 #define IPV6_TCLASS 67 150 151 /* Obsolete synonyms for the above. */ 152 #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP 153 #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP 154 #define IPV6_RXHOPOPTS IPV6_HOPOPTS 155 #define IPV6_RXDSTOPTS IPV6_DSTOPTS 156 157 /* IPV6_MTU_DISCOVER values. */ 158 #define IPV6_PMTUDISC_DONT 0 /* Never send DF frames. */ 159 #define IPV6_PMTUDISC_WANT 1 /* Use per route hints. */ 160 #define IPV6_PMTUDISC_DO 2 /* Always DF. */ 161 162 /* Socket level values for IPv6. */ 163 #define SOL_IPV6 41 164 #define SOL_ICMPV6 58 165 166 /* Routing header options for IPv6. */ 167 #define IPV6_RTHDR_LOOSE 0 /* Hop doesn't need to be neighbour. */ 168 #define IPV6_RTHDR_STRICT 1 /* Hop must be a neighbour. */ 169 170 #define IPV6_RTHDR_TYPE_0 0 /* IPv6 Routing header type 0. */ 171
