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607ca46e DH |
1 | /* |
2 | * Types and definitions for AF_INET6 | |
3 | * Linux INET6 implementation | |
4 | * | |
5 | * Authors: | |
6 | * Pedro Roque <roque@di.fc.ul.pt> | |
7 | * | |
8 | * Sources: | |
9 | * IPv6 Program Interfaces for BSD Systems | |
10 | * <draft-ietf-ipngwg-bsd-api-05.txt> | |
11 | * | |
12 | * Advanced Sockets API for IPv6 | |
13 | * <draft-stevens-advanced-api-00.txt> | |
14 | * | |
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. | |
19 | */ | |
20 | ||
21 | #ifndef _UAPI_LINUX_IN6_H | |
22 | #define _UAPI_LINUX_IN6_H | |
23 | ||
24 | #include <linux/types.h> | |
cfd280c9 | 25 | #include <linux/libc-compat.h> |
607ca46e DH |
26 | |
27 | /* | |
28 | * IPv6 address structure | |
29 | */ | |
30 | ||
cfd280c9 | 31 | #if __UAPI_DEF_IN6_ADDR |
607ca46e DH |
32 | struct in6_addr { |
33 | union { | |
34 | __u8 u6_addr8[16]; | |
cfd280c9 | 35 | #if __UAPI_DEF_IN6_ADDR_ALT |
607ca46e DH |
36 | __be16 u6_addr16[8]; |
37 | __be32 u6_addr32[4]; | |
cfd280c9 | 38 | #endif |
607ca46e DH |
39 | } in6_u; |
40 | #define s6_addr in6_u.u6_addr8 | |
cfd280c9 | 41 | #if __UAPI_DEF_IN6_ADDR_ALT |
607ca46e DH |
42 | #define s6_addr16 in6_u.u6_addr16 |
43 | #define s6_addr32 in6_u.u6_addr32 | |
cfd280c9 | 44 | #endif |
607ca46e | 45 | }; |
cfd280c9 | 46 | #endif /* __UAPI_DEF_IN6_ADDR */ |
607ca46e | 47 | |
cfd280c9 | 48 | #if __UAPI_DEF_SOCKADDR_IN6 |
607ca46e DH |
49 | struct sockaddr_in6 { |
50 | unsigned short int sin6_family; /* AF_INET6 */ | |
51 | __be16 sin6_port; /* Transport layer port # */ | |
52 | __be32 sin6_flowinfo; /* IPv6 flow information */ | |
53 | struct in6_addr sin6_addr; /* IPv6 address */ | |
54 | __u32 sin6_scope_id; /* scope id (new in RFC2553) */ | |
55 | }; | |
cfd280c9 | 56 | #endif /* __UAPI_DEF_SOCKADDR_IN6 */ |
607ca46e | 57 | |
cfd280c9 | 58 | #if __UAPI_DEF_IPV6_MREQ |
607ca46e DH |
59 | struct ipv6_mreq { |
60 | /* IPv6 multicast address of group */ | |
61 | struct in6_addr ipv6mr_multiaddr; | |
62 | ||
63 | /* local IPv6 address of interface */ | |
64 | int ipv6mr_ifindex; | |
65 | }; | |
cfd280c9 | 66 | #endif /* __UAPI_DEF_IVP6_MREQ */ |
607ca46e DH |
67 | |
68 | #define ipv6mr_acaddr ipv6mr_multiaddr | |
69 | ||
70 | struct in6_flowlabel_req { | |
71 | struct in6_addr flr_dst; | |
72 | __be32 flr_label; | |
73 | __u8 flr_action; | |
74 | __u8 flr_share; | |
75 | __u16 flr_flags; | |
76 | __u16 flr_expires; | |
77 | __u16 flr_linger; | |
78 | __u32 __flr_pad; | |
79 | /* Options in format of IPV6_PKTOPTIONS */ | |
80 | }; | |
81 | ||
82 | #define IPV6_FL_A_GET 0 | |
83 | #define IPV6_FL_A_PUT 1 | |
84 | #define IPV6_FL_A_RENEW 2 | |
85 | ||
86 | #define IPV6_FL_F_CREATE 1 | |
87 | #define IPV6_FL_F_EXCL 2 | |
df3687ff | 88 | #define IPV6_FL_F_REFLECT 4 |
46e5f401 | 89 | #define IPV6_FL_F_REMOTE 8 |
607ca46e DH |
90 | |
91 | #define IPV6_FL_S_NONE 0 | |
92 | #define IPV6_FL_S_EXCL 1 | |
93 | #define IPV6_FL_S_PROCESS 2 | |
94 | #define IPV6_FL_S_USER 3 | |
95 | #define IPV6_FL_S_ANY 255 | |
96 | ||
97 | ||
98 | /* | |
99 | * Bitmask constant declarations to help applications select out the | |
100 | * flow label and priority fields. | |
101 | * | |
102 | * Note that this are in host byte order while the flowinfo field of | |
103 | * sockaddr_in6 is in network byte order. | |
104 | */ | |
105 | ||
106 | #define IPV6_FLOWINFO_FLOWLABEL 0x000fffff | |
107 | #define IPV6_FLOWINFO_PRIORITY 0x0ff00000 | |
108 | ||
109 | /* These definitions are obsolete */ | |
110 | #define IPV6_PRIORITY_UNCHARACTERIZED 0x0000 | |
111 | #define IPV6_PRIORITY_FILLER 0x0100 | |
112 | #define IPV6_PRIORITY_UNATTENDED 0x0200 | |
113 | #define IPV6_PRIORITY_RESERVED1 0x0300 | |
114 | #define IPV6_PRIORITY_BULK 0x0400 | |
115 | #define IPV6_PRIORITY_RESERVED2 0x0500 | |
116 | #define IPV6_PRIORITY_INTERACTIVE 0x0600 | |
117 | #define IPV6_PRIORITY_CONTROL 0x0700 | |
118 | #define IPV6_PRIORITY_8 0x0800 | |
119 | #define IPV6_PRIORITY_9 0x0900 | |
120 | #define IPV6_PRIORITY_10 0x0a00 | |
121 | #define IPV6_PRIORITY_11 0x0b00 | |
122 | #define IPV6_PRIORITY_12 0x0c00 | |
123 | #define IPV6_PRIORITY_13 0x0d00 | |
124 | #define IPV6_PRIORITY_14 0x0e00 | |
125 | #define IPV6_PRIORITY_15 0x0f00 | |
126 | ||
127 | /* | |
128 | * IPV6 extension headers | |
129 | */ | |
cfd280c9 | 130 | #if __UAPI_DEF_IPPROTO_V6 |
ee262ad8 JMM |
131 | #define IPPROTO_HOPOPTS 0 /* IPv6 hop-by-hop options */ |
132 | #define IPPROTO_ROUTING 43 /* IPv6 routing header */ | |
133 | #define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header */ | |
134 | #define IPPROTO_ICMPV6 58 /* ICMPv6 */ | |
135 | #define IPPROTO_NONE 59 /* IPv6 no next header */ | |
136 | #define IPPROTO_DSTOPTS 60 /* IPv6 destination options */ | |
137 | #define IPPROTO_MH 135 /* IPv6 mobility header */ | |
cfd280c9 | 138 | #endif /* __UAPI_DEF_IPPROTO_V6 */ |
607ca46e DH |
139 | |
140 | /* | |
141 | * IPv6 TLV options. | |
142 | */ | |
143 | #define IPV6_TLV_PAD1 0 | |
144 | #define IPV6_TLV_PADN 1 | |
145 | #define IPV6_TLV_ROUTERALERT 5 | |
ceba1832 | 146 | #define IPV6_TLV_CALIPSO 7 /* RFC 5570 */ |
607ca46e DH |
147 | #define IPV6_TLV_JUMBO 194 |
148 | #define IPV6_TLV_HAO 201 /* home address option */ | |
149 | ||
150 | /* | |
151 | * IPV6 socket options | |
152 | */ | |
6d08acd2 | 153 | #if __UAPI_DEF_IPV6_OPTIONS |
607ca46e DH |
154 | #define IPV6_ADDRFORM 1 |
155 | #define IPV6_2292PKTINFO 2 | |
156 | #define IPV6_2292HOPOPTS 3 | |
157 | #define IPV6_2292DSTOPTS 4 | |
158 | #define IPV6_2292RTHDR 5 | |
159 | #define IPV6_2292PKTOPTIONS 6 | |
160 | #define IPV6_CHECKSUM 7 | |
161 | #define IPV6_2292HOPLIMIT 8 | |
162 | #define IPV6_NEXTHOP 9 | |
163 | #define IPV6_AUTHHDR 10 /* obsolete */ | |
164 | #define IPV6_FLOWINFO 11 | |
165 | ||
166 | #define IPV6_UNICAST_HOPS 16 | |
167 | #define IPV6_MULTICAST_IF 17 | |
168 | #define IPV6_MULTICAST_HOPS 18 | |
169 | #define IPV6_MULTICAST_LOOP 19 | |
170 | #define IPV6_ADD_MEMBERSHIP 20 | |
171 | #define IPV6_DROP_MEMBERSHIP 21 | |
172 | #define IPV6_ROUTER_ALERT 22 | |
173 | #define IPV6_MTU_DISCOVER 23 | |
174 | #define IPV6_MTU 24 | |
175 | #define IPV6_RECVERR 25 | |
176 | #define IPV6_V6ONLY 26 | |
177 | #define IPV6_JOIN_ANYCAST 27 | |
178 | #define IPV6_LEAVE_ANYCAST 28 | |
179 | ||
180 | /* IPV6_MTU_DISCOVER values */ | |
181 | #define IPV6_PMTUDISC_DONT 0 | |
182 | #define IPV6_PMTUDISC_WANT 1 | |
183 | #define IPV6_PMTUDISC_DO 2 | |
184 | #define IPV6_PMTUDISC_PROBE 3 | |
93b36cf3 HFS |
185 | /* same as IPV6_PMTUDISC_PROBE, provided for symetry with IPv4 |
186 | * also see comments on IP_PMTUDISC_INTERFACE | |
187 | */ | |
188 | #define IPV6_PMTUDISC_INTERFACE 4 | |
0b95227a HFS |
189 | /* weaker version of IPV6_PMTUDISC_INTERFACE, which allows packets to |
190 | * get fragmented if they exceed the interface mtu | |
191 | */ | |
192 | #define IPV6_PMTUDISC_OMIT 5 | |
607ca46e DH |
193 | |
194 | /* Flowlabel */ | |
195 | #define IPV6_FLOWLABEL_MGR 32 | |
196 | #define IPV6_FLOWINFO_SEND 33 | |
197 | ||
198 | #define IPV6_IPSEC_POLICY 34 | |
199 | #define IPV6_XFRM_POLICY 35 | |
715f504b | 200 | #define IPV6_HDRINCL 36 |
6d08acd2 | 201 | #endif |
607ca46e DH |
202 | |
203 | /* | |
204 | * Multicast: | |
205 | * Following socket options are shared between IPv4 and IPv6. | |
206 | * | |
207 | * MCAST_JOIN_GROUP 42 | |
208 | * MCAST_BLOCK_SOURCE 43 | |
209 | * MCAST_UNBLOCK_SOURCE 44 | |
210 | * MCAST_LEAVE_GROUP 45 | |
211 | * MCAST_JOIN_SOURCE_GROUP 46 | |
212 | * MCAST_LEAVE_SOURCE_GROUP 47 | |
213 | * MCAST_MSFILTER 48 | |
214 | */ | |
215 | ||
216 | /* | |
217 | * Advanced API (RFC3542) (1) | |
218 | * | |
219 | * Note: IPV6_RECVRTHDRDSTOPTS does not exist. see net/ipv6/datagram.c. | |
220 | */ | |
221 | ||
222 | #define IPV6_RECVPKTINFO 49 | |
223 | #define IPV6_PKTINFO 50 | |
224 | #define IPV6_RECVHOPLIMIT 51 | |
225 | #define IPV6_HOPLIMIT 52 | |
226 | #define IPV6_RECVHOPOPTS 53 | |
227 | #define IPV6_HOPOPTS 54 | |
228 | #define IPV6_RTHDRDSTOPTS 55 | |
229 | #define IPV6_RECVRTHDR 56 | |
230 | #define IPV6_RTHDR 57 | |
231 | #define IPV6_RECVDSTOPTS 58 | |
232 | #define IPV6_DSTOPTS 59 | |
233 | #define IPV6_RECVPATHMTU 60 | |
234 | #define IPV6_PATHMTU 61 | |
235 | #define IPV6_DONTFRAG 62 | |
236 | #if 0 /* not yet */ | |
237 | #define IPV6_USE_MIN_MTU 63 | |
238 | #endif | |
239 | ||
240 | /* | |
241 | * Netfilter (1) | |
242 | * | |
243 | * Following socket options are used in ip6_tables; | |
244 | * see include/linux/netfilter_ipv6/ip6_tables.h. | |
245 | * | |
246 | * IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO 64 | |
247 | * IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES 65 | |
248 | */ | |
249 | ||
250 | /* | |
251 | * Advanced API (RFC3542) (2) | |
252 | */ | |
253 | #define IPV6_RECVTCLASS 66 | |
254 | #define IPV6_TCLASS 67 | |
255 | ||
256 | /* | |
257 | * Netfilter (2) | |
258 | * | |
259 | * Following socket options are used in ip6_tables; | |
260 | * see include/linux/netfilter_ipv6/ip6_tables.h. | |
261 | * | |
262 | * IP6T_SO_GET_REVISION_MATCH 68 | |
263 | * IP6T_SO_GET_REVISION_TARGET 69 | |
121d1e09 | 264 | * IP6T_SO_ORIGINAL_DST 80 |
607ca46e DH |
265 | */ |
266 | ||
753a2ad5 | 267 | #define IPV6_AUTOFLOWLABEL 70 |
607ca46e DH |
268 | /* RFC5014: Source address selection */ |
269 | #define IPV6_ADDR_PREFERENCES 72 | |
270 | ||
271 | #define IPV6_PREFER_SRC_TMP 0x0001 | |
272 | #define IPV6_PREFER_SRC_PUBLIC 0x0002 | |
273 | #define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100 | |
274 | #define IPV6_PREFER_SRC_COA 0x0004 | |
275 | #define IPV6_PREFER_SRC_HOME 0x0400 | |
276 | #define IPV6_PREFER_SRC_CGA 0x0008 | |
277 | #define IPV6_PREFER_SRC_NONCGA 0x0800 | |
278 | ||
279 | /* RFC5082: Generalized Ttl Security Mechanism */ | |
280 | #define IPV6_MINHOPCOUNT 73 | |
281 | ||
282 | #define IPV6_ORIGDSTADDR 74 | |
283 | #define IPV6_RECVORIGDSTADDR IPV6_ORIGDSTADDR | |
284 | #define IPV6_TRANSPARENT 75 | |
285 | #define IPV6_UNICAST_IF 76 | |
286 | ||
287 | /* | |
288 | * Multicast Routing: | |
bbb923a4 | 289 | * see include/uapi/linux/mroute6.h. |
607ca46e | 290 | * |
bbb923a4 ND |
291 | * MRT6_BASE 200 |
292 | * ... | |
293 | * MRT6_MAX | |
607ca46e DH |
294 | */ |
295 | #endif /* _UAPI_LINUX_IN6_H */ |