sysdeps/unix/bsd/bsd4.4/kfreebsd/bits/in.h

   1 /* Copyright (C) 1997, 2000, 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /* FreeBSD version.  */
  20
  21 #ifndef _NETINET_IN_H
  22 # error "Never use <bits/in.h> directly; include <netinet/in.h> instead."
  23 #endif
  24
  25 /* This is the FreeBSD version, do not assume a linux-based kernel.  */
  26 #define __USE_KERNEL_IPV6_DEFS 0
  27
  28 /* Link numbers.  */
  29 #define IMPLINK_IP              155
  30 #define IMPLINK_LOWEXPER        156
  31 #define IMPLINK_HIGHEXPER       158
  32
  33 #define IPPROTO_DIVERT          258             /* divert pseudo-protocol */
  34
  35 /* To select the IP level.  */
  36 #define SOL_IP  0
  37
  38 /*
  39  * Options for use with [gs]etsockopt at the IP level.
  40  * First word of comment is data type; bool is stored in int.
  41  */
  42 #define IP_OPTIONS              1    /* buf/ip_opts; set/get IP options */
  43 #define IP_HDRINCL              2    /* int; header is included with data */
  44 #define IP_TOS                  3    /* int; IP type of service and preced. */
  45 #define IP_TTL                  4    /* int; IP time to live */
  46 #define IP_RECVOPTS             5    /* bool; receive all IP opts w/dgram */
  47 #define IP_RECVRETOPTS          6    /* bool; receive IP opts for response */
  48 #define IP_RECVDSTADDR          7    /* bool; receive IP dst addr w/dgram */
  49 #define IP_SENDSRCADDR          IP_RECVDSTADDR /* cmsg_type to set src addr */
  50 #define IP_RETOPTS              8    /* ip_opts; set/get IP options */
  51 #define IP_MULTICAST_IF         9    /* struct in_addr *or* struct ip_mreqn;
  52                                       * set/get IP multicast i/f  */
  53 #define IP_MULTICAST_TTL        10   /* u_char; set/get IP multicast ttl */
  54 #define IP_MULTICAST_LOOP       11   /* u_char; set/get IP multicast loopback */
  55 #define IP_ADD_MEMBERSHIP       12   /* ip_mreq; add an IP group membership */
  56 #define IP_DROP_MEMBERSHIP      13   /* ip_mreq; drop an IP group membership */
  57 #define IP_MULTICAST_VIF        14   /* set/get IP mcast virt. iface */
  58 #define IP_RSVP_ON              15   /* enable RSVP in kernel */
  59 #define IP_RSVP_OFF             16   /* disable RSVP in kernel */
  60 #define IP_RSVP_VIF_ON          17   /* set RSVP per-vif socket */
  61 #define IP_RSVP_VIF_OFF         18   /* unset RSVP per-vif socket */
  62 #define IP_PORTRANGE            19   /* int; range to choose for unspec port */
  63 #define IP_RECVIF               20   /* bool; receive reception if w/dgram */
  64 /* for IPSEC */
  65 #define IP_IPSEC_POLICY         21   /* int; set/get security policy */
  66 #define IP_FAITH                22   /* bool; accept FAITH'ed connections */
  67
  68 #define IP_ONESBCAST            23   /* bool: send all-ones broadcast */
  69 #define IP_NONLOCALOK           24   /* bool: allow bind to spoof non-local addresses;
  70                                         requires kernel compile option IP_NONLOCALBIND */
  71
  72 #define IP_FW_TABLE_ADD         40   /* add entry */
  73 #define IP_FW_TABLE_DEL         41   /* delete entry */
  74 #define IP_FW_TABLE_FLUSH       42   /* flush table */
  75 #define IP_FW_TABLE_GETSIZE     43   /* get table size */
  76 #define IP_FW_TABLE_LIST        44   /* list table contents */
  77
  78 #define IP_FW_ADD               50   /* add a firewall rule to chain */
  79 #define IP_FW_DEL               51   /* delete a firewall rule from chain */
  80 #define IP_FW_FLUSH             52   /* flush firewall rule chain */
  81 #define IP_FW_ZERO              53   /* clear single/all firewall counter(s) */
  82 #define IP_FW_GET               54   /* get entire firewall rule chain */
  83 #define IP_FW_RESETLOG          55   /* reset logging counters */
  84
  85 #define IP_FW_NAT_CFG           56   /* add/config a nat rule */
  86 #define IP_FW_NAT_DEL           57   /* delete a nat rule */
  87 #define IP_FW_NAT_GET_CONFIG    58   /* get configuration of a nat rule */
  88 #define IP_FW_NAT_GET_LOG       59   /* get log of a nat rule */
  89
  90 #define IP_DUMMYNET_CONFIGURE   60   /* add/configure a dummynet pipe */
  91 #define IP_DUMMYNET_DEL         61   /* delete a dummynet pipe from chain */
  92 #define IP_DUMMYNET_FLUSH       62   /* flush dummynet */
  93 #define IP_DUMMYNET_GET         64   /* get entire dummynet pipes */
  94
  95 #define IP_RECVTTL              65   /* bool; receive IP TTL w/dgram */
  96 #define IP_MINTTL               66   /* minimum TTL for packet or drop */
  97 #define IP_DONTFRAG             67   /* don't fragment packet */
  98
  99 /* IPv4 Source Filter Multicast API [RFC3678] */
 100 #define IP_ADD_SOURCE_MEMBERSHIP        70   /* join a source-specific group */
 101 #define IP_DROP_SOURCE_MEMBERSHIP       71   /* drop a single source */
 102 #define IP_BLOCK_SOURCE                 72   /* block a source */
 103 #define IP_UNBLOCK_SOURCE               73   /* unblock a source */
 104
 105 /* The following option is private; do not use it from user applications. */
 106 #define IP_MSFILTER                     74   /* set/get filter list */
 107
 108 /* Protocol Independent Multicast API [RFC3678] */
 109 #define MCAST_JOIN_GROUP                80   /* join an any-source group */
 110 #define MCAST_LEAVE_GROUP               81   /* leave all sources for group */
 111 #define MCAST_JOIN_SOURCE_GROUP         82   /* join a source-specific group */
 112 #define MCAST_LEAVE_SOURCE_GROUP        83   /* leave a single source */
 113 #define MCAST_BLOCK_SOURCE              84   /* block a source */
 114 #define MCAST_UNBLOCK_SOURCE            85   /* unblock a source */
 115
 116 /*
 117  * Defaults and limits for options
 118  */
 119 #define IP_DEFAULT_MULTICAST_TTL  1     /* normally limit m'casts to 1 hop  */
 120 #define IP_DEFAULT_MULTICAST_LOOP 1     /* normally hear sends if a member  */
 121
 122 /*
 123  * The imo_membership vector for each socket is now dynamically allocated at
 124  * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
 125  * according to a power-of-two increment.
 126  */
 127 #define IP_MIN_MEMBERSHIPS      31
 128 #define IP_MAX_MEMBERSHIPS      4095
 129 #define IP_MAX_SOURCE_FILTER    1024    /* # of filters per socket, per group */
 130
 131 /*
 132  * Filter modes; also used to represent per-socket filter mode internally.
 133  */
 134
 135 #define MCAST_UNDEFINED 0       /* fmode: not yet defined */
 136 #define MCAST_INCLUDE   1       /* fmode: include these source(s) */
 137 #define MCAST_EXCLUDE   2       /* fmode: exclude these source(s) */
 138
 139 /*
 140  * Argument for IP_PORTRANGE:
 141  * - which range to search when port is unspecified at bind() or connect()
 142  */
 143 #define IP_PORTRANGE_DEFAULT    0       /* default range */
 144 #define IP_PORTRANGE_HIGH       1       /* "high" - request firewall bypass */
 145 #define IP_PORTRANGE_LOW        2       /* "low" - vouchsafe security */
 146
 147 /*
 148  * Names for IP sysctl objects
 149  */
 150 #define IPCTL_FORWARDING        1       /* act as router */
 151 #define IPCTL_SENDREDIRECTS     2       /* may send redirects when forwarding */
 152 #define IPCTL_DEFTTL            3       /* default TTL */
 153 #ifdef notyet
 154 #define IPCTL_DEFMTU            4       /* default MTU */
 155 #endif
 156 #define IPCTL_RTEXPIRE          5       /* cloned route expiration time */
 157 #define IPCTL_RTMINEXPIRE       6       /* min value for expiration time */
 158 #define IPCTL_RTMAXCACHE        7       /* trigger level for dynamic expire */
 159 #define IPCTL_SOURCEROUTE       8       /* may perform source routes */
 160 #define IPCTL_DIRECTEDBROADCAST 9       /* may re-broadcast received packets */
 161 #define IPCTL_INTRQMAXLEN       10      /* max length of netisr queue */
 162 #define IPCTL_INTRQDROPS        11      /* number of netisr q drops */
 163 #define IPCTL_STATS             12      /* ipstat structure */
 164 #define IPCTL_ACCEPTSOURCEROUTE 13      /* may accept source routed packets */
 165 #define IPCTL_FASTFORWARDING    14      /* use fast IP forwarding code */
 166 #define IPCTL_KEEPFAITH         15      /* FAITH IPv4->IPv6 translater ctl */
 167 #define IPCTL_GIF_TTL           16      /* default TTL for gif encap packet */
 168 #define IPCTL_MAXID             17
 169
 170 /* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
 171    The `ip_dst' field is used for the first-hop gateway when using a
 172    source route (this gets put into the header proper).  */
 173 struct ip_opts
 174   {
 175     struct in_addr ip_dst;      /* First hop; zero without source route.  */
 176     char ip_opts[40];           /* Actually variable in size.  */
 177   };
 178
 179 /* Options for use with `getsockopt' and `setsockopt' at the IPv6 level.
 180    The first word in the comment at the right is the data type used;
 181    "bool" means a boolean value stored in an `int'.  */
 182 #define IPV6_SOCKOPT_RESERVED1  3  /* reserved for future use */
 183 #define IPV6_UNICAST_HOPS       4  /* int; IP6 hops */
 184 #define IPV6_MULTICAST_IF       9  /* u_int; set/get IP6 multicast i/f  */
 185 #define IPV6_MULTICAST_HOPS     10 /* int; set/get IP6 multicast hops */
 186 #define IPV6_MULTICAST_LOOP     11 /* u_int; set/get IP6 multicast loopback */
 187 #define IPV6_JOIN_GROUP         12 /* ip6_mreq; join a group membership */
 188 #define IPV6_LEAVE_GROUP        13 /* ip6_mreq; leave a group membership */
 189 #define IPV6_PORTRANGE          14 /* int; range to choose for unspec port */
 190 #define ICMP6_FILTER            18 /* icmp6_filter; icmp6 filter */
 191
 192 #define IPV6_CHECKSUM           26 /* int; checksum offset for raw socket */
 193 #define IPV6_V6ONLY             27 /* bool; make AF_INET6 sockets v6 only */
 194
 195 #define IPV6_IPSEC_POLICY       28 /* struct; get/set security policy */
 196 #define IPV6_FAITH              29 /* bool; accept FAITH'ed connections */
 197
 198 #define IPV6_FW_ADD             30 /* add a firewall rule to chain */
 199 #define IPV6_FW_DEL             31 /* delete a firewall rule from chain */
 200 #define IPV6_FW_FLUSH           32 /* flush firewall rule chain */
 201 #define IPV6_FW_ZERO            33 /* clear single/all firewall counter(s) */
 202 #define IPV6_FW_GET             34 /* get entire firewall rule chain */
 203 #define IPV6_RTHDRDSTOPTS       35 /* ip6_dest; send dst option before rthdr */
 204
 205 #define IPV6_RECVPKTINFO        36 /* bool; recv if, dst addr */
 206 #define IPV6_RECVHOPLIMIT       37 /* bool; recv hop limit */
 207 #define IPV6_RECVRTHDR          38 /* bool; recv routing header */
 208 #define IPV6_RECVHOPOPTS        39 /* bool; recv hop-by-hop option */
 209 #define IPV6_RECVDSTOPTS        40 /* bool; recv dst option after rthdr */
 210
 211 #define IPV6_USE_MIN_MTU        42 /* bool; send packets at the minimum MTU */
 212 #define IPV6_RECVPATHMTU        43 /* bool; notify an according MTU */
 213 #define IPV6_PATHMTU            44 /* mtuinfo; get the current path MTU (sopt),
 214                                       4 bytes int; MTU notification (cmsg) */
 215
 216 #define IPV6_PKTINFO            46 /* in6_pktinfo; send if, src addr */
 217 #define IPV6_HOPLIMIT           47 /* int; send hop limit */
 218 #define IPV6_NEXTHOP            48 /* sockaddr; next hop addr */
 219 #define IPV6_HOPOPTS            49 /* ip6_hbh; send hop-by-hop option */
 220 #define IPV6_DSTOPTS            50 /* ip6_dest; send dst option befor rthdr */
 221 #define IPV6_RTHDR              51 /* ip6_rthdr; send routing header */
 222
 223 #define IPV6_RECVTCLASS         57 /* bool; recv traffic class values */
 224
 225 #define IPV6_AUTOFLOWLABEL      59 /* bool; attach flowlabel automagically */
 226
 227 #define IPV6_TCLASS             61 /* int; send traffic class value */
 228 #define IPV6_DONTFRAG           62 /* bool; disable IPv6 fragmentation */
 229
 230 #define IPV6_PREFER_TEMPADDR    63 /* int; prefer temporary addresses as
 231                                     * the source address.
 232                                     */
 233
 234 /* Obsolete synonyms for the above.  */
 235 #define IPV6_ADD_MEMBERSHIP     IPV6_JOIN_GROUP
 236 #define IPV6_DROP_MEMBERSHIP    IPV6_LEAVE_GROUP
 237 #define IPV6_RXHOPOPTS          IPV6_HOPOPTS
 238 #define IPV6_RXDSTOPTS          IPV6_DSTOPTS
 239
 240 /* Socket level values for IPv6.  */
 241 #define SOL_IPV6        41
 242 #define SOL_ICMPV6      58
 243
 244 /*
 245  * Defaults and limits for options
 246  */
 247 #define IPV6_DEFAULT_MULTICAST_HOPS 1   /* normally limit m'casts to 1 hop */
 248 #define IPV6_DEFAULT_MULTICAST_LOOP 1   /* normally hear sends if a member */
 249
 250 /*
 251  * Argument for IPV6_PORTRANGE:
 252  * - which range to search when port is unspecified at bind() or connect()
 253  */
 254 #define IPV6_PORTRANGE_DEFAULT  0       /* default range */
 255 #define IPV6_PORTRANGE_HIGH     1       /* "high" - request firewall bypass */
 256 #define IPV6_PORTRANGE_LOW      2       /* "low" - vouchsafe security */
 257
 258 /* Routing header options for IPv6.  */
 259 #define IPV6_RTHDR_LOOSE        0       /* Hop doesn't need to be neighbour. */
 260 #define IPV6_RTHDR_STRICT       1       /* Hop must be a neighbour.  */
 261
 262 #define IPV6_RTHDR_TYPE_0       0       /* IPv6 Routing header type 0.  */
 263
 264 /*
 265  * Names for IP sysctl objects
 266  */
 267 #define IPV6CTL_FORWARDING      1       /* act as router */
 268 #define IPV6CTL_SENDREDIRECTS   2       /* may send redirects when forwarding*/
 269 #define IPV6CTL_DEFHLIM         3       /* default Hop-Limit */
 270 #define IPV6CTL_FORWSRCRT       5       /* forward source-routed dgrams */
 271 #define IPV6CTL_STATS           6       /* stats */
 272 #define IPV6CTL_MRTSTATS        7       /* multicast forwarding stats */
 273 #define IPV6CTL_MRTPROTO        8       /* multicast routing protocol */
 274 #define IPV6CTL_MAXFRAGPACKETS  9       /* max packets reassembly queue */
 275 #define IPV6CTL_SOURCECHECK     10      /* verify source route and intf */
 276 #define IPV6CTL_SOURCECHECK_LOGINT 11   /* minimume logging interval */
 277 #define IPV6CTL_ACCEPT_RTADV    12
 278 #define IPV6CTL_KEEPFAITH       13
 279 #define IPV6CTL_LOG_INTERVAL    14
 280 #define IPV6CTL_HDRNESTLIMIT    15
 281 #define IPV6CTL_DAD_COUNT       16
 282 #define IPV6CTL_AUTO_FLOWLABEL  17
 283 #define IPV6CTL_DEFMCASTHLIM    18
 284 #define IPV6CTL_GIF_HLIM        19      /* default HLIM for gif encap packet */
 285 #define IPV6CTL_KAME_VERSION    20
 286 #define IPV6CTL_USE_DEPRECATED  21      /* use deprecated addr (RFC2462 5.5.4) */
 287 #define IPV6CTL_RR_PRUNE        22      /* walk timer for router renumbering */
 288 #define IPV6CTL_V6ONLY          24
 289 #define IPV6CTL_RTEXPIRE        25      /* cloned route expiration time */
 290 #define IPV6CTL_RTMINEXPIRE     26      /* min value for expiration time */
 291 #define IPV6CTL_RTMAXCACHE      27      /* trigger level for dynamic expire */
 292
 293 #define IPV6CTL_USETEMPADDR     32      /* use temporary addresses (RFC3041) */
 294 #define IPV6CTL_TEMPPLTIME      33      /* preferred lifetime for tmpaddrs */
 295 #define IPV6CTL_TEMPVLTIME      34      /* valid lifetime for tmpaddrs */
 296 #define IPV6CTL_AUTO_LINKLOCAL  35      /* automatic link-local addr assign */
 297 #define IPV6CTL_RIP6STATS       36      /* raw_ip6 stats */
 298 #define IPV6CTL_PREFER_TEMPADDR 37      /* prefer temporary addr as src */
 299 #define IPV6CTL_ADDRCTLPOLICY   38      /* get/set address selection policy */
 300 #define IPV6CTL_USE_DEFAULTZONE 39      /* use default scope zone */
 301
 302 #define IPV6CTL_MAXFRAGS        41      /* max fragments */
 303 #define IPV6CTL_MCAST_PMTU      44      /* enable pMTU discovery for multicast? */
 304
 305 /* New entries should be added here from current IPV6CTL_MAXID value. */
 306 /* to define items, should talk with KAME guys first, for *BSD compatibility */
 307 /* 42-44 is already used in KAME */
 308 #define IPV6CTL_STEALTH         45
 309 #define ICMPV6CTL_ND6_ONLINKNSRFC4861   47
 310 #define IPV6CTL_MAXID           48