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 /* Large enough to hold both sockaddr_in and sockaddr_in6. */ 22 struct sockaddr_inet { 23 unsigned short sa_family; 24 char sa_data[sizeof(struct sockaddr_in6) - 25 sizeof(unsigned short)]; 26 }; 27 28 /* IPv6 Wildcard Address (::) and Loopback Address (::1) defined in RFC2553 29 * NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined 30 * in network byte order, not in host byte order as are the IPv4 equivalents 31 */ 32 extern const struct in6_addr in6addr_any; 33 #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } } 34 extern const struct in6_addr in6addr_loopback; 35 #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } } 36 extern const struct in6_addr in6addr_linklocal_allnodes; 37 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT \ 38 { { { 0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } } 39 extern const struct in6_addr in6addr_linklocal_allrouters; 40 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \ 41 { { { 0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } } 42 extern const struct in6_addr in6addr_interfacelocal_allnodes; 43 #define IN6ADDR_INTERFACELOCAL_ALLNODES_INIT \ 44 { { { 0xff,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } } 45 extern const struct in6_addr in6addr_interfacelocal_allrouters; 46 #define IN6ADDR_INTERFACELOCAL_ALLROUTERS_INIT \ 47 { { { 0xff,1,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } } 48 extern const struct in6_addr in6addr_sitelocal_allrouters; 49 #define IN6ADDR_SITELOCAL_ALLROUTERS_INIT \ 50 { { { 0xff,5,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } } 51 #endif 52