include/linux/in6.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *      Types and definitions for AF_INET6
   4  *      Linux INET6 implementation
   5  *
   6  *      Authors:
   7  *      Pedro Roque             <roque@di.fc.ul.pt>
   8  *
   9  *      Sources:
  10  *      IPv6 Program Interfaces for BSD Systems
  11  *      <draft-ietf-ipngwg-bsd-api-05.txt>
  12  *
  13  *      Advanced Sockets API for IPv6
  14  *      <draft-stevens-advanced-api-00.txt>
  15  */
  16 #ifndef _LINUX_IN6_H
  17 #define _LINUX_IN6_H
  18
  19 #include <uapi/linux/in6.h>
  20
  21 /* IPv6 Wildcard Address (::) and Loopback Address (::1) defined in RFC2553
  22  * NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined
  23  * in network byte order, not in host byte order as are the IPv4 equivalents
  24  */
  25 extern const struct in6_addr in6addr_any;
  26 #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
  27 extern const struct in6_addr in6addr_loopback;
  28 #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
  29 extern const struct in6_addr in6addr_linklocal_allnodes;
  30 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
  31                 { { { 0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
  32 extern const struct in6_addr in6addr_linklocal_allrouters;
  33 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
  34                 { { { 0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } }
  35 extern const struct in6_addr in6addr_interfacelocal_allnodes;
  36 #define IN6ADDR_INTERFACELOCAL_ALLNODES_INIT \
  37                 { { { 0xff,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
  38 extern const struct in6_addr in6addr_interfacelocal_allrouters;
  39 #define IN6ADDR_INTERFACELOCAL_ALLROUTERS_INIT \
  40                 { { { 0xff,1,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } }
  41 extern const struct in6_addr in6addr_sitelocal_allrouters;
  42 #define IN6ADDR_SITELOCAL_ALLROUTERS_INIT \
  43                 { { { 0xff,5,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } }
  44 #endif