/* Copyright (C) 1997-2020 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, see <https://www.gnu.org/licenses/>. */ /* Generic version. */ #ifndef _NETINET_IN_H # error "Never use <bits/in.h> directly; include <netinet/in.h> instead." #endif /* This is the generic version, do not assume a linux-based kernel. */ #define __USE_KERNEL_IPV6_DEFS 0 /* To select the IP level. */ #define SOL_IP 0 /* 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_OPTIONS 1 /* ip_opts; IP per-packet options. */ #define IP_HDRINCL 2 /* int; Header is included with data. */ #define IP_TOS 3 /* int; IP type of service and precedence. */ #define IP_TTL 4 /* int; IP time to live. */ #define IP_RECVOPTS 5 /* bool; Receive all IP options w/datagram. */ #define IP_RECVRETOPTS 6 /* bool; Receive IP options for response. */ #define IP_RECVDSTADDR 7 /* bool; Receive IP dst addr w/datagram. */ #define IP_RETOPTS 8 /* ip_opts; Set/get IP per-packet options. */ #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ #define IP_MULTICAST_TTL 10 /* unsigned char; set/get IP multicast ttl */ #define IP_MULTICAST_LOOP 11 /* bool; set/get IP multicast loopback */ #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ #ifdef __USE_MISC /* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS. 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. */ }; #endif /* Socket-level values for IPv6. */ #define SOL_IPV6 41 #define SOL_ICMPV6 58 /* IPV6 socket options. */ #define IPV6_ADDRFORM 1 #define IPV6_2292PKTINFO 2 #define IPV6_2292HOPOPTS 3 #define IPV6_2292DSTOPTS 4 #define IPV6_2292RTHDR 5 #define IPV6_2292PKTOPTIONS 6 #define IPV6_CHECKSUM 7 #define IPV6_2292HOPLIMIT 8 #define IPV6_RXINFO IPV6_2292PKTINFO #define IPV6_TXINFO IPV6_RXINFO #define SCM_SRCINFO IPV6_TXINFO #define SCM_SRCRT IPV6_RXSRCRT #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 IPV6_V6ONLY 26 #define IPV6_JOIN_ANYCAST 27 #define IPV6_LEAVE_ANYCAST 28 /* Advanced API (RFC3542) (1). */ #define IPV6_RECVPKTINFO 49 #define IPV6_PKTINFO 50 #define IPV6_RECVHOPLIMIT 51 #define IPV6_HOPLIMIT 52 #define IPV6_RECVHOPOPTS 53 #define IPV6_HOPOPTS 54 #define IPV6_RTHDRDSTOPTS 55 #define IPV6_RECVRTHDR 56 #define IPV6_RTHDR 57 #define IPV6_RECVDSTOPTS 58 #define IPV6_DSTOPTS 59 #define IPV6_RECVPATHMTU 60 #define IPV6_PATHMTU 61 #define IPV6_DONTFRAG 62 /* Obsolete synonyms for the above. */ #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP #define IPV6_RXHOPOPTS IPV6_2292HOPOPTS #define IPV6_RXDSTOPTS IPV6_2292DSTOPTS /* 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. */