release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/sysroot/usr/include/linux/in6.h

   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 _LINUX_IN6_H
  22 #define _LINUX_IN6_H
  23
  24 #include <linux/types.h>
  25
  26 /*
  27  *      IPv6 address structure
  28  */
  29
  30 struct in6_addr {
  31         union {
  32                 __u8            u6_addr8[16];
  33                 __be16          u6_addr16[8];
  34                 __be32          u6_addr32[4];
  35         } in6_u;
  36 #define s6_addr                 in6_u.u6_addr8
  37 #define s6_addr16               in6_u.u6_addr16
  38 #define s6_addr32               in6_u.u6_addr32
  39 };
  40
  41 /* IPv6 Wildcard Address (::) and Loopback Address (::1) defined in RFC2553
  42  * NOTE: Be aware the IN6ADDR_* constants and in6addr_* externals are defined
  43  * in network byte order, not in host byte order as are the IPv4 equivalents
  44  */
  45
  46 struct sockaddr_in6 {
  47         unsigned short int      sin6_family;    /* AF_INET6 */
  48         __be16                  sin6_port;      /* Transport layer port # */
  49         __be32                  sin6_flowinfo;  /* IPv6 flow information */
  50         struct in6_addr         sin6_addr;      /* IPv6 address */
  51         __u32                   sin6_scope_id;  /* scope id (new in RFC2553) */
  52 };
  53
  54 struct ipv6_mreq {
  55         /* IPv6 multicast address of group */
  56         struct in6_addr ipv6mr_multiaddr;
  57
  58         /* local IPv6 address of interface */
  59         int             ipv6mr_ifindex;
  60 };
  61
  62 #define ipv6mr_acaddr   ipv6mr_multiaddr
  63
  64 struct in6_flowlabel_req {
  65         struct in6_addr flr_dst;
  66         __be32  flr_label;
  67         __u8    flr_action;
  68         __u8    flr_share;
  69         __u16   flr_flags;
  70         __u16   flr_expires;
  71         __u16   flr_linger;
  72         __u32   __flr_pad;
  73         /* Options in format of IPV6_PKTOPTIONS */
  74 };
  75
  76 #define IPV6_FL_A_GET   0
  77 #define IPV6_FL_A_PUT   1
  78 #define IPV6_FL_A_RENEW 2
  79
  80 #define IPV6_FL_F_CREATE        1
  81 #define IPV6_FL_F_EXCL          2
  82
  83 #define IPV6_FL_S_NONE          0
  84 #define IPV6_FL_S_EXCL          1
  85 #define IPV6_FL_S_PROCESS       2
  86 #define IPV6_FL_S_USER          3
  87 #define IPV6_FL_S_ANY           255
  88
  89
  90 /*
  91  *      Bitmask constant declarations to help applications select out the
  92  *      flow label and priority fields.
  93  *
  94  *      Note that this are in host byte order while the flowinfo field of
  95  *      sockaddr_in6 is in network byte order.
  96  */
  97
  98 #define IPV6_FLOWINFO_FLOWLABEL         0x000fffff
  99 #define IPV6_FLOWINFO_PRIORITY          0x0ff00000
 100
 101 /* These definitions are obsolete */
 102 #define IPV6_PRIORITY_UNCHARACTERIZED   0x0000
 103 #define IPV6_PRIORITY_FILLER            0x0100
 104 #define IPV6_PRIORITY_UNATTENDED        0x0200
 105 #define IPV6_PRIORITY_RESERVED1         0x0300
 106 #define IPV6_PRIORITY_BULK              0x0400
 107 #define IPV6_PRIORITY_RESERVED2         0x0500
 108 #define IPV6_PRIORITY_INTERACTIVE       0x0600
 109 #define IPV6_PRIORITY_CONTROL           0x0700
 110 #define IPV6_PRIORITY_8                 0x0800
 111 #define IPV6_PRIORITY_9                 0x0900
 112 #define IPV6_PRIORITY_10                0x0a00
 113 #define IPV6_PRIORITY_11                0x0b00
 114 #define IPV6_PRIORITY_12                0x0c00
 115 #define IPV6_PRIORITY_13                0x0d00
 116 #define IPV6_PRIORITY_14                0x0e00
 117 #define IPV6_PRIORITY_15                0x0f00
 118
 119 /*
 120  *      IPV6 extension headers
 121  */
 122 #define IPPROTO_HOPOPTS         0       /* IPv6 hop-by-hop options      */
 123 #define IPPROTO_ROUTING         43      /* IPv6 routing header          */
 124 #define IPPROTO_FRAGMENT        44      /* IPv6 fragmentation header    */
 125 #define IPPROTO_ICMPV6          58      /* ICMPv6                       */
 126 #define IPPROTO_NONE            59      /* IPv6 no next header          */
 127 #define IPPROTO_DSTOPTS         60      /* IPv6 destination options     */
 128 #define IPPROTO_MH              135     /* IPv6 mobility header         */
 129
 130 /*
 131  *      IPv6 TLV options.
 132  */
 133 #define IPV6_TLV_PAD0           0
 134 #define IPV6_TLV_PADN           1
 135 #define IPV6_TLV_ROUTERALERT    5
 136 #define IPV6_TLV_JUMBO          194
 137 #define IPV6_TLV_HAO            201     /* home address option */
 138
 139 /*
 140  *      IPV6 socket options
 141  */
 142
 143 #define IPV6_ADDRFORM           1
 144 #define IPV6_2292PKTINFO        2
 145 #define IPV6_2292HOPOPTS        3
 146 #define IPV6_2292DSTOPTS        4
 147 #define IPV6_2292RTHDR          5
 148 #define IPV6_2292PKTOPTIONS     6
 149 #define IPV6_CHECKSUM           7
 150 #define IPV6_2292HOPLIMIT       8
 151 #define IPV6_NEXTHOP            9
 152 #define IPV6_AUTHHDR            10      /* obsolete */
 153 #define IPV6_FLOWINFO           11
 154
 155 #define IPV6_UNICAST_HOPS       16
 156 #define IPV6_MULTICAST_IF       17
 157 #define IPV6_MULTICAST_HOPS     18
 158 #define IPV6_MULTICAST_LOOP     19
 159 #define IPV6_ADD_MEMBERSHIP     20
 160 #define IPV6_DROP_MEMBERSHIP    21
 161 #define IPV6_ROUTER_ALERT       22
 162 #define IPV6_MTU_DISCOVER       23
 163 #define IPV6_MTU                24
 164 #define IPV6_RECVERR            25
 165 #define IPV6_V6ONLY             26
 166 #define IPV6_JOIN_ANYCAST       27
 167 #define IPV6_LEAVE_ANYCAST      28
 168
 169 /* IPV6_MTU_DISCOVER values */
 170 #define IPV6_PMTUDISC_DONT              0
 171 #define IPV6_PMTUDISC_WANT              1
 172 #define IPV6_PMTUDISC_DO                2
 173 #define IPV6_PMTUDISC_PROBE             3
 174
 175 /* Flowlabel */
 176 #define IPV6_FLOWLABEL_MGR      32
 177 #define IPV6_FLOWINFO_SEND      33
 178
 179 #define IPV6_IPSEC_POLICY       34
 180 #define IPV6_XFRM_POLICY        35
 181
 182 /*
 183  * Multicast:
 184  * Following socket options are shared between IPv4 and IPv6.
 185  *
 186  * MCAST_JOIN_GROUP             42
 187  * MCAST_BLOCK_SOURCE           43
 188  * MCAST_UNBLOCK_SOURCE         44
 189  * MCAST_LEAVE_GROUP            45
 190  * MCAST_JOIN_SOURCE_GROUP      46
 191  * MCAST_LEAVE_SOURCE_GROUP     47
 192  * MCAST_MSFILTER               48
 193  */
 194
 195 /*
 196  * Advanced API (RFC3542) (1)
 197  *
 198  * Note: IPV6_RECVRTHDRDSTOPTS does not exist. see net/ipv6/datagram.c.
 199  */
 200
 201 #define IPV6_RECVPKTINFO        49
 202 #define IPV6_PKTINFO            50
 203 #define IPV6_RECVHOPLIMIT       51
 204 #define IPV6_HOPLIMIT           52
 205 #define IPV6_RECVHOPOPTS        53
 206 #define IPV6_HOPOPTS            54
 207 #define IPV6_RTHDRDSTOPTS       55
 208 #define IPV6_RECVRTHDR          56
 209 #define IPV6_RTHDR              57
 210 #define IPV6_RECVDSTOPTS        58
 211 #define IPV6_DSTOPTS            59
 212 #define IPV6_RECVPATHMTU        60
 213 #define IPV6_PATHMTU            61
 214 #define IPV6_DONTFRAG           62
 215 #if 0   /* not yet */
 216 #define IPV6_USE_MIN_MTU        63
 217 #endif
 218
 219 /*
 220  * Netfilter (1)
 221  *
 222  * Following socket options are used in ip6_tables;
 223  * see include/linux/netfilter_ipv6/ip6_tables.h.
 224  *
 225  * IP6T_SO_SET_REPLACE / IP6T_SO_GET_INFO               64
 226  * IP6T_SO_SET_ADD_COUNTERS / IP6T_SO_GET_ENTRIES       65
 227  */
 228
 229 /*
 230  * Advanced API (RFC3542) (2)
 231  */
 232 #define IPV6_RECVTCLASS         66
 233 #define IPV6_TCLASS             67
 234
 235 /*
 236  * Netfilter (2)
 237  *
 238  * Following socket options are used in ip6_tables;
 239  * see include/linux/netfilter_ipv6/ip6_tables.h.
 240  *
 241  * IP6T_SO_GET_REVISION_MATCH   68
 242  * IP6T_SO_GET_REVISION_TARGET  69
 243  */
 244
 245 /* RFC5014: Source address selection */
 246 #define IPV6_ADDR_PREFERENCES   72
 247
 248 #define IPV6_PREFER_SRC_TMP             0x0001
 249 #define IPV6_PREFER_SRC_PUBLIC          0x0002
 250 #define IPV6_PREFER_SRC_PUBTMP_DEFAULT  0x0100
 251 #define IPV6_PREFER_SRC_COA             0x0004
 252 #define IPV6_PREFER_SRC_HOME            0x0400
 253 #define IPV6_PREFER_SRC_CGA             0x0008
 254 #define IPV6_PREFER_SRC_NONCGA          0x0800
 255
 256 /* RFC5082: Generalized Ttl Security Mechanism */
 257 #define IPV6_MINHOPCOUNT                73
 258
 259 /*
 260  * Multicast Routing:
 261  * see include/linux/mroute6.h.
 262  *
 263  * MRT6_INIT                    200
 264  * MRT6_DONE                    201
 265  * MRT6_ADD_MIF                 202
 266  * MRT6_DEL_MIF                 203
 267  * MRT6_ADD_MFC                 204
 268  * MRT6_DEL_MFC                 205
 269  * MRT6_VERSION                 206
 270  * MRT6_ASSERT                  207
 271  * MRT6_PIM                     208
 272  * (reserved)                   209
 273  */
 274 #endif