2 * Types and definitions for AF_INET6
3 * Linux INET6 implementation
6 * Pedro Roque <roque@di.fc.ul.pt>
9 * IPv6 Program Interfaces for BSD Systems
10 * <draft-ietf-ipngwg-bsd-api-05.txt>
12 * Advanced Sockets API for IPv6
13 * <draft-stevens-advanced-api-00.txt>
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version
18 * 2 of the License, or (at your option) any later version.
21 #ifndef _UAPI_LINUX_IN6_H
22 #define _UAPI_LINUX_IN6_H
24 #include <linux/types.h>
27 * IPv6 address structure
36 #define s6_addr in6_u.u6_addr8
37 #define s6_addr16 in6_u.u6_addr16
38 #define s6_addr32 in6_u.u6_addr32
42 unsigned short int sin6_family; /* AF_INET6 */
43 __be16 sin6_port; /* Transport layer port # */
44 __be32 sin6_flowinfo; /* IPv6 flow information */
45 struct in6_addr sin6_addr; /* IPv6 address */
46 __u32 sin6_scope_id; /* scope id (new in RFC2553) */
50 /* IPv6 multicast address of group */
51 struct in6_addr ipv6mr_multiaddr;
53 /* local IPv6 address of interface */
57 #define ipv6mr_acaddr ipv6mr_multiaddr
59 struct in6_flowlabel_req {
60 struct in6_addr flr_dst;
68 /* Options in format of IPV6_PKTOPTIONS */
71 #define IPV6_FL_A_GET 0
72 #define IPV6_FL_A_PUT 1
73 #define IPV6_FL_A_RENEW 2
75 #define IPV6_FL_F_CREATE 1
76 #define IPV6_FL_F_EXCL 2
78 #define IPV6_FL_S_NONE 0
79 #define IPV6_FL_S_EXCL 1
80 #define IPV6_FL_S_PROCESS 2
81 #define IPV6_FL_S_USER 3
82 #define IPV6_FL_S_ANY 255
86 * Bitmask constant declarations to help applications select out the
87 * flow label and priority fields.
89 * Note that this are in host byte order while the flowinfo field of
90 * sockaddr_in6 is in network byte order.
93 #define IPV6_FLOWINFO_FLOWLABEL 0x000fffff
94 #define IPV6_FLOWINFO_PRIORITY 0x0ff00000
96 /* These definitions are obsolete */
97 #define IPV6_PRIORITY_UNCHARACTERIZED 0x0000
98 #define IPV6_PRIORITY_FILLER 0x0100
99 #define IPV6_PRIORITY_UNATTENDED 0x0200
100 #define IPV6_PRIORITY_RESERVED1 0x0300
101 #define IPV6_PRIORITY_BULK 0x0400
102 #define IPV6_PRIORITY_RESERVED2 0x0500
103 #define IPV6_PRIORITY_INTERACTIVE 0x0600
104 #define IPV6_PRIORITY_CONTROL 0x0700
105 #define IPV6_PRIORITY_8 0x0800
106 #define IPV6_PRIORITY_9 0x0900
107 #define IPV6_PRIORITY_10 0x0a00
108 #define IPV6_PRIORITY_11 0x0b00
109 #define IPV6_PRIORITY_12 0x0c00
110 #define IPV6_PRIORITY_13 0x0d00
111 #define IPV6_PRIORITY_14 0x0e00
112 #define IPV6_PRIORITY_15 0x0f00
115 * IPV6 extension headers
117 #define IPPROTO_HOPOPTS 0 /* IPv6 hop-by-hop options */
118 #define IPPROTO_ROUTING 43 /* IPv6 routing header */
119 #define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header */
120 #define IPPROTO_ICMPV6 58 /* ICMPv6 */
121 #define IPPROTO_NONE 59 /* IPv6 no next header */
122 #define IPPROTO_DSTOPTS 60 /* IPv6 destination options */
123 #define IPPROTO_MH 135 /* IPv6 mobility header */
128 #define IPV6_TLV_PAD1 0
129 #define IPV6_TLV_PADN 1
130 #define IPV6_TLV_ROUTERALERT 5
131 #define IPV6_TLV_JUMBO 194
132 #define IPV6_TLV_HAO 201 /* home address option */
135 * IPV6 socket options
138 #define IPV6_ADDRFORM 1
139 #define IPV6_2292PKTINFO 2
140 #define IPV6_2292HOPOPTS 3
141 #define IPV6_2292DSTOPTS 4
142 #define IPV6_2292RTHDR 5
143 #define IPV6_2292PKTOPTIONS 6
144 #define IPV6_CHECKSUM 7
145 #define IPV6_2292HOPLIMIT 8
146 #define IPV6_NEXTHOP 9
147 #define IPV6_AUTHHDR 10 /* obsolete */
148 #define IPV6_FLOWINFO 11
150 #define IPV6_UNICAST_HOPS 16
151 #define IPV6_MULTICAST_IF 17
152 #define IPV6_MULTICAST_HOPS 18
153 #define IPV6_MULTICAST_LOOP 19
154 #define IPV6_ADD_MEMBERSHIP 20
155 #define IPV6_DROP_MEMBERSHIP 21
156 #define IPV6_ROUTER_ALERT 22
157 #define IPV6_MTU_DISCOVER 23
159 #define IPV6_RECVERR 25
160 #define IPV6_V6ONLY 26
161 #define IPV6_JOIN_ANYCAST 27
162 #define IPV6_LEAVE_ANYCAST 28
164 /* IPV6_MTU_DISCOVER values */
165 #define IPV6_PMTUDISC_DONT 0
166 #define IPV6_PMTUDISC_WANT 1
167 #define IPV6_PMTUDISC_DO 2
168 #define IPV6_PMTUDISC_PROBE 3
171 #define IPV6_FLOWLABEL_MGR 32
172 #define IPV6_FLOWINFO_SEND 33
174 #define IPV6_IPSEC_POLICY 34
175 #define IPV6_XFRM_POLICY 35
179 * Following socket options are shared between IPv4 and IPv6.
181 * MCAST_JOIN_GROUP 42
182 * MCAST_BLOCK_SOURCE 43
183 * MCAST_UNBLOCK_SOURCE 44
184 * MCAST_LEAVE_GROUP 45
185 * MCAST_JOIN_SOURCE_GROUP 46
186 * MCAST_LEAVE_SOURCE_GROUP 47
191 * Advanced API (RFC3542) (1)
193 * Note: IPV6_RECVRTHDRDSTOPTS does not exist. see net/ipv6/datagram.c.
196 #define IPV6_RECVPKTINFO 49
197 #define IPV6_PKTINFO 50
198 #define IPV6_RECVHOPLIMIT 51
199 #define IPV6_HOPLIMIT 52
200 #define IPV6_RECVHOPOPTS 53
201 #define IPV6_HOPOPTS 54
202 #define IPV6_RTHDRDSTOPTS 55
203 #define IPV6_RECVRTHDR 56
204 #define IPV6_RTHDR 57
205 #define IPV6_RECVDSTOPTS 58
206 #define IPV6_DSTOPTS 59
207 #define IPV6_RECVPATHMTU 60
208 #define IPV6_PATHMTU 61
209 #define IPV6_DONTFRAG 62
211 #define IPV6_USE_MIN_MTU 63
217 * Following socket options are used in ip6_tables;
218 * see include/linux/netfilter_ipv6/ip6_tables.h.
220 * IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO 64
221 * IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES 65
225 * Advanced API (RFC3542) (2)
227 #define IPV6_RECVTCLASS 66
228 #define IPV6_TCLASS 67
233 * Following socket options are used in ip6_tables;
234 * see include/linux/netfilter_ipv6/ip6_tables.h.
236 * IP6T_SO_GET_REVISION_MATCH 68
237 * IP6T_SO_GET_REVISION_TARGET 69
238 * IP6T_SO_ORIGINAL_DST 80
241 /* RFC5014: Source address selection */
242 #define IPV6_ADDR_PREFERENCES 72
244 #define IPV6_PREFER_SRC_TMP 0x0001
245 #define IPV6_PREFER_SRC_PUBLIC 0x0002
246 #define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100
247 #define IPV6_PREFER_SRC_COA 0x0004
248 #define IPV6_PREFER_SRC_HOME 0x0400
249 #define IPV6_PREFER_SRC_CGA 0x0008
250 #define IPV6_PREFER_SRC_NONCGA 0x0800
252 /* RFC5082: Generalized Ttl Security Mechanism */
253 #define IPV6_MINHOPCOUNT 73
255 #define IPV6_ORIGDSTADDR 74
256 #define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR
257 #define IPV6_TRANSPARENT 75
258 #define IPV6_UNICAST_IF 76
262 * see include/uapi/linux/mroute6.h.
268 #endif /* _UAPI_LINUX_IN6_H */