initial commit with v2.6.9
[linux-2.6.9-moxart.git] / include / linux / in6.h
blob5b4e89b1ac683e937d1e3f3864a30dd5e0f73ced
1 /*
2 * Types and definitions for AF_INET6
3 * Linux INET6 implementation
5 * Authors:
6 * Pedro Roque <roque@di.fc.ul.pt>
8 * Sources:
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 _LINUX_IN6_H
22 #define _LINUX_IN6_H
24 #include <linux/types.h>
27 * IPv6 address structure
30 struct in6_addr
32 union
34 __u8 u6_addr8[16];
35 __u16 u6_addr16[8];
36 __u32 u6_addr32[4];
37 } in6_u;
38 #define s6_addr in6_u.u6_addr8
39 #define s6_addr16 in6_u.u6_addr16
40 #define s6_addr32 in6_u.u6_addr32
43 /* IPv6 Wildcard Address (::) and Loopback Address (::1) defined in RFC2553
44 * NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined
45 * in network byte order, not in host byte order as are the IPv4 equivalents
47 extern const struct in6_addr in6addr_any;
48 #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
49 extern const struct in6_addr in6addr_loopback;
50 #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
52 struct sockaddr_in6 {
53 unsigned short int sin6_family; /* AF_INET6 */
54 __u16 sin6_port; /* Transport layer port # */
55 __u32 sin6_flowinfo; /* IPv6 flow information */
56 struct in6_addr sin6_addr; /* IPv6 address */
57 __u32 sin6_scope_id; /* scope id (new in RFC2553) */
60 struct ipv6_mreq {
61 /* IPv6 multicast address of group */
62 struct in6_addr ipv6mr_multiaddr;
64 /* local IPv6 address of interface */
65 int ipv6mr_ifindex;
68 #define ipv6mr_acaddr ipv6mr_multiaddr
70 struct in6_flowlabel_req
72 struct in6_addr flr_dst;
73 __u32 flr_label;
74 __u8 flr_action;
75 __u8 flr_share;
76 __u16 flr_flags;
77 __u16 flr_expires;
78 __u16 flr_linger;
79 __u32 __flr_pad;
80 /* Options in format of IPV6_PKTOPTIONS */
83 #define IPV6_FL_A_GET 0
84 #define IPV6_FL_A_PUT 1
85 #define IPV6_FL_A_RENEW 2
87 #define IPV6_FL_F_CREATE 1
88 #define IPV6_FL_F_EXCL 2
90 #define IPV6_FL_S_NONE 0
91 #define IPV6_FL_S_EXCL 1
92 #define IPV6_FL_S_PROCESS 2
93 #define IPV6_FL_S_USER 3
94 #define IPV6_FL_S_ANY 255
98 * Bitmask constant declarations to help applications select out the
99 * flow label and priority fields.
101 * Note that this are in host byte order while the flowinfo field of
102 * sockaddr_in6 is in network byte order.
105 #define IPV6_FLOWINFO_FLOWLABEL 0x000fffff
106 #define IPV6_FLOWINFO_PRIORITY 0x0ff00000
108 /* These defintions are obsolete */
109 #define IPV6_PRIORITY_UNCHARACTERIZED 0x0000
110 #define IPV6_PRIORITY_FILLER 0x0100
111 #define IPV6_PRIORITY_UNATTENDED 0x0200
112 #define IPV6_PRIORITY_RESERVED1 0x0300
113 #define IPV6_PRIORITY_BULK 0x0400
114 #define IPV6_PRIORITY_RESERVED2 0x0500
115 #define IPV6_PRIORITY_INTERACTIVE 0x0600
116 #define IPV6_PRIORITY_CONTROL 0x0700
117 #define IPV6_PRIORITY_8 0x0800
118 #define IPV6_PRIORITY_9 0x0900
119 #define IPV6_PRIORITY_10 0x0a00
120 #define IPV6_PRIORITY_11 0x0b00
121 #define IPV6_PRIORITY_12 0x0c00
122 #define IPV6_PRIORITY_13 0x0d00
123 #define IPV6_PRIORITY_14 0x0e00
124 #define IPV6_PRIORITY_15 0x0f00
127 * IPV6 extension headers
129 #define IPPROTO_HOPOPTS 0 /* IPv6 hop-by-hop options */
130 #define IPPROTO_ROUTING 43 /* IPv6 routing header */
131 #define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header */
132 #define IPPROTO_ICMPV6 58 /* ICMPv6 */
133 #define IPPROTO_NONE 59 /* IPv6 no next header */
134 #define IPPROTO_DSTOPTS 60 /* IPv6 destination options */
137 * IPv6 TLV options.
139 #define IPV6_TLV_PAD0 0
140 #define IPV6_TLV_PADN 1
141 #define IPV6_TLV_ROUTERALERT 5
142 #define IPV6_TLV_JUMBO 194
145 * IPV6 socket options
148 #define IPV6_ADDRFORM 1
149 #define IPV6_PKTINFO 2
150 #define IPV6_HOPOPTS 3
151 #define IPV6_DSTOPTS 4
152 #define IPV6_RTHDR 5
153 #define IPV6_PKTOPTIONS 6
154 #define IPV6_CHECKSUM 7
155 #define IPV6_HOPLIMIT 8
156 #define IPV6_NEXTHOP 9
157 #define IPV6_AUTHHDR 10
158 #define IPV6_FLOWINFO 11
160 #define IPV6_UNICAST_HOPS 16
161 #define IPV6_MULTICAST_IF 17
162 #define IPV6_MULTICAST_HOPS 18
163 #define IPV6_MULTICAST_LOOP 19
164 #define IPV6_ADD_MEMBERSHIP 20
165 #define IPV6_DROP_MEMBERSHIP 21
166 #define IPV6_ROUTER_ALERT 22
167 #define IPV6_MTU_DISCOVER 23
168 #define IPV6_MTU 24
169 #define IPV6_RECVERR 25
170 #define IPV6_V6ONLY 26
171 #define IPV6_JOIN_ANYCAST 27
172 #define IPV6_LEAVE_ANYCAST 28
174 /* IPV6_MTU_DISCOVER values */
175 #define IPV6_PMTUDISC_DONT 0
176 #define IPV6_PMTUDISC_WANT 1
177 #define IPV6_PMTUDISC_DO 2
179 /* Flowlabel */
180 #define IPV6_FLOWLABEL_MGR 32
181 #define IPV6_FLOWINFO_SEND 33
183 #define IPV6_IPSEC_POLICY 34
184 #define IPV6_XFRM_POLICY 35
187 * Multicast:
188 * Following socket options are shared between IPv4 and IPv6.
190 * MCAST_JOIN_GROUP 42
191 * MCAST_BLOCK_SOURCE 43
192 * MCAST_UNBLOCK_SOURCE 44
193 * MCAST_LEAVE_GROUP 45
194 * MCAST_JOIN_SOURCE_GROUP 46
195 * MCAST_LEAVE_SOURCE_GROUP 47
196 * MCAST_MSFILTER 48
199 #endif