sysdeps/generic/bits/in.h

   1 /* Copyright (C) 1997 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 Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    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    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 /* Generic version.  */
  20
  21 #ifndef _NETINET_INBITS_H
  22 #define _NETINET_INBITS_H 1
  23
  24 /* Link numbers.  */
  25 #define IMPLINK_IP              155
  26 #define IMPLINK_LOWEXPER        156
  27 #define IMPLINK_HIGHEXPER       158
  28
  29
  30 /* Options for use with `getsockopt' and `setsockopt' at the IP level.
  31    The first word in the comment at the right is the data type used;
  32    "bool" means a boolean value stored in an `int'.  */
  33 #define IP_OPTIONS      1       /* ip_opts; IP per-packet options.  */
  34 #define IP_HDRINCL      2       /* int; Header is included with data.  */
  35 #define IP_TOS          3       /* int; IP type of service and precedence.  */
  36 #define IP_TTL          4       /* int; IP time to live.  */
  37 #define IP_RECVOPTS     5       /* bool; Receive all IP options w/datagram.  */
  38 #define IP_RECVRETOPTS  6       /* bool; Receive IP options for response.  */
  39 #define IP_RECVDSTADDR  7       /* bool; Receive IP dst addr w/datagram.  */
  40 #define IP_RETOPTS      8       /* ip_opts; Set/get IP per-packet options.  */
  41 #define IP_MULTICAST_IF 9       /* in_addr; set/get IP multicast i/f */
  42 #define IP_MULTICAST_TTL 10     /* u_char; set/get IP multicast ttl */
  43 #define IP_MULTICAST_LOOP 11    /* i_char; set/get IP multicast loopback */
  44 #define IP_ADD_MEMBERSHIP 12    /* ip_mreq; add an IP group membership */
  45 #define IP_DROP_MEMBERSHIP 13   /* ip_mreq; drop an IP group membership */
  46
  47 /* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
  48    The `ip_dst' field is used for the first-hop gateway when using a
  49    source route (this gets put into the header proper).  */
  50 struct ip_opts
  51   {
  52     struct in_addr ip_dst;      /* First hop; zero without source route.  */
  53     char ip_opts[40];           /* Actually variable in size.  */
  54   };
  55
  56 /* Structure used for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. */
  57 struct ip_mreq
  58 {
  59   struct in_addr imr_multiaddr; /* IP multicast address of group */
  60   struct in_addr imr_interface; /* local IP address of interface */
  61 };
  62
  63 /* IPV6 socket options.  */
  64 #define IPV6_ADDRFORM           1
  65 #define IPV6_RXINFO             2
  66 #define IPV6_RXHOPOPTS          3
  67 #define IPV6_RXDSTOPTS          4
  68 #define IPV6_RXSRCRT            5
  69 #define IPV6_PKTOPTIONS         6
  70 #define IPV6_CHECKSUM           7
  71 #define IPV6_HOPLIMIT           8
  72
  73 #define IPV6_TXINFO             IPV6_RXINFO
  74 #define SCM_SRCINFO             IPV6_TXINFO
  75 #define SCM_SRCRT               IPV6_RXSRCRT
  76
  77 #define IPV6_UNICAST_HOPS       16
  78 #define IPV6_MULTICAST_IF       17
  79 #define IPV6_MULTICAST_HOPS     18
  80 #define IPV6_MULTICAST_LOOP     19
  81 #define IPV6_ADD_MEMBERSHIP     20
  82 #define IPV6_DROP_MEMBERSHIP    21
  83
  84 #endif  /* netinet/inbits.h */