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
45