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- /* Copyright (C) 1991-1999, 2000 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- /* Linux version. */
- #ifndef _NETINET_IN_H
- # error "Never use <bits/in.h> directly; include <netinet/in.h> instead."
- #endif
- /* Options for use with `getsockopt' and `setsockopt' at the IP level.
- The first word in the comment at the right is the data type used;
- "bool" means a boolean value stored in an `int'. */
- #define IP_TOS 1 /* int; IP type of service and precedence. */
- #define IP_TTL 2 /* int; IP time to live. */
- #define IP_HDRINCL 3 /* int; Header is included with data. */
- #define IP_OPTIONS 4 /* ip_opts; IP per-packet options. */
- #define IP_ROUTER_ALERT 5 /* bool */
- #define IP_RECVOPTS 6 /* bool */
- #define IP_RETOPTS 7 /* bool */
- #define IP_PKTINFO 8 /* bool */
- #define IP_PKTOPTIONS 9
- #define IP_PMTUDISC 10 /* obsolete name? */
- #define IP_MTU_DISCOVER 10 /* int; see below */
- #define IP_RECVERR 11 /* bool */
- #define IP_RECVTTL 12 /* bool */
- #define IP_RECVTOS 13 /* bool */
- #define IP_MULTICAST_IF 32 /* in_addr; set/get IP multicast i/f */
- #define IP_MULTICAST_TTL 33 /* u_char; set/get IP multicast ttl */
- #define IP_MULTICAST_LOOP 34 /* i_char; set/get IP multicast loopback */
- #define IP_ADD_MEMBERSHIP 35 /* ip_mreq; add an IP group membership */
- #define IP_DROP_MEMBERSHIP 36 /* ip_mreq; drop an IP group membership */
- /* For BSD compatibility. */
- #define IP_RECVRETOPTS IP_RETOPTS
- /* IP_MTU_DISCOVER arguments. */
- #define IP_PMTUDISC_DONT 0 /* Never send DF frames. */
- #define IP_PMTUDISC_WANT 1 /* Use per route hints. */
- #define IP_PMTUDISC_DO 2 /* Always DF. */
- /* To select the IP level. */
- #define SOL_IP 0
- #define IP_DEFAULT_MULTICAST_TTL 1
- #define IP_DEFAULT_MULTICAST_LOOP 1
- #define IP_MAX_MEMBERSHIPS 20
- /* Structure used to describe IP options for IP_OPTIONS. The `ip_dst'
- field is used for the first-hop gateway when using a source route
- (this gets put into the header proper). */
- struct ip_opts
- {
- struct in_addr ip_dst; /* First hop; zero without source route. */
- char ip_opts[40]; /* Actually variable in size. */
- };
- /* Structure used for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. */
- struct ip_mreq
- {
- struct in_addr imr_multiaddr; /* IP multicast address of group */
- struct in_addr imr_interface; /* local IP address of interface */
- };
- /* As above but including interface specification by index. */
- struct ip_mreqn
- {
- struct in_addr imr_multiaddr; /* IP multicast address of group */
- struct in_addr imr_address; /* local IP address of interface */
- int imr_ifindex; /* Interface index */
- };
- /* Structure used for IP_PKTINFO. */
- struct in_pktinfo
- {
- int ipi_ifindex; /* Interface index */
- struct in_addr ipi_spec_dst; /* Routing destination address */
- struct in_addr ipi_addr; /* Header destination address */
- };
- /* Options for use with `getsockopt' and `setsockopt' at the IPv6 level.
- The first word in the comment at the right is the data type used;
- "bool" means a boolean value stored in an `int'. */
- #define IPV6_ADDRFORM 1
- #define IPV6_PKTINFO 2
- #define IPV6_HOPOPTS 3
- #define IPV6_DSTOPTS 4
- #define IPV6_RTHDR 5
- #define IPV6_PKTOPTIONS 6
- #define IPV6_CHECKSUM 7
- #define IPV6_HOPLIMIT 8
- #define IPV6_NEXTHOP 9
- #define IPV6_AUTHHDR 10
- #define IPV6_UNICAST_HOPS 16
- #define IPV6_MULTICAST_IF 17
- #define IPV6_MULTICAST_HOPS 18
- #define IPV6_MULTICAST_LOOP 19
- #define IPV6_JOIN_GROUP 20
- #define IPV6_LEAVE_GROUP 21
- #define IPV6_ROUTER_ALERT 22
- #define IPV6_MTU_DISCOVER 23
- #define IPV6_MTU 24
- #define IPV6_RECVERR 25
- #define SCM_SRCRT IPV6_RXSRCRT
- /* Obsolete synonyms for the above. */
- #define IPV6_RXHOPOPTS IPV6_HOPOPTS
- #define IPV6_RXDSTOPTS IPV6_DSTOPTS
- #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
- #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
- /* IPV6_MTU_DISCOVER values. */
- #define IPV6_PMTUDISC_DONT 0 /* Never send DF frames. */
- #define IPV6_PMTUDISC_WANT 1 /* Use per route hints. */
- #define IPV6_PMTUDISC_DO 2 /* Always DF. */
- /* Socket level values for IPv6. */
- #define SOL_IPV6 41
- #define SOL_ICMPV6 58
- /* Routing header options for IPv6. */
- #define IPV6_RTHDR_LOOSE 0 /* Hop doesn't need to be neighbour. */
- #define IPV6_RTHDR_STRICT 1 /* Hop must be a neighbour. */
- #define IPV6_RTHDR_TYPE_0 0 /* IPv6 Routing header type 0. */
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