Annotation of embedaddon/pimdd/include/netbsd/netinet/in.h, revision 1.1
1.1 ! misho 1: /* $NetBSD: in.h,v 1.28 1997/10/18 21:18:29 kml Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1982, 1986, 1990, 1993
! 5: * The Regents of the University of California. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: *
! 35: * @(#)in.h 8.3 (Berkeley) 1/3/94
! 36: */
! 37:
! 38: /*
! 39: * Constants and structures defined by the internet system,
! 40: * Per RFC 790, September 1981, and numerous additions.
! 41: */
! 42:
! 43: #ifndef _NETINET_IN_H_
! 44: #define _NETINET_IN_H_
! 45:
! 46: /*
! 47: * Protocols
! 48: */
! 49: #define IPPROTO_IP 0 /* dummy for IP */
! 50: #define IPPROTO_ICMP 1 /* control message protocol */
! 51: #define IPPROTO_IGMP 2 /* group mgmt protocol */
! 52: #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
! 53: #define IPPROTO_IPIP 4 /* IP inside IP */
! 54: #define IPPROTO_TCP 6 /* tcp */
! 55: #define IPPROTO_EGP 8 /* exterior gateway protocol */
! 56: #define IPPROTO_PUP 12 /* pup */
! 57: #define IPPROTO_UDP 17 /* user datagram protocol */
! 58: #define IPPROTO_IDP 22 /* xns idp */
! 59: #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
! 60: #define IPPROTO_ESP 50 /* encap. security payload */
! 61: #define IPPROTO_AH 51 /* authentication header */
! 62: #define IPPROTO_EON 80 /* ISO cnlp */
! 63: #define IPPROTO_ENCAP 98 /* encapsulation header */
! 64: #define IPPROTO_PIM 103 /* Protocol Independent Mcast */
! 65:
! 66: #define IPPROTO_RAW 255 /* raw IP packet */
! 67: #define IPPROTO_MAX 256
! 68:
! 69:
! 70: /*
! 71: * Local port number conventions:
! 72: * Ports < IPPORT_RESERVED are reserved for
! 73: * privileged processes (e.g. root).
! 74: * Ports > IPPORT_USERRESERVED are reserved
! 75: * for servers, not necessarily privileged.
! 76: */
! 77: #define IPPORT_RESERVED 1024
! 78: #define IPPORT_USERRESERVED 5000
! 79:
! 80: /*
! 81: * Internet address (a structure for historical reasons)
! 82: */
! 83: struct in_addr {
! 84: u_int32_t s_addr;
! 85: };
! 86:
! 87: /*
! 88: * Definitions of bits in internet address integers.
! 89: * On subnets, the decomposition of addresses to host and net parts
! 90: * is done according to subnet mask, not the masks here.
! 91: *
! 92: * By byte-swapping the constants, we avoid ever having to byte-swap IP
! 93: * addresses inside the kernel. Unfortunately, user-level programs rely
! 94: * on these macros not doing byte-swapping.
! 95: */
! 96: #ifdef _KERNEL
! 97: #define __IPADDR(x) ((u_int32_t) htonl((u_int32_t)(x)))
! 98: #else
! 99: #define __IPADDR(x) ((u_int32_t)(x))
! 100: #endif
! 101:
! 102: #define IN_CLASSA(i) (((u_int32_t)(i) & __IPADDR(0x80000000)) == \
! 103: __IPADDR(0x00000000))
! 104: #define IN_CLASSA_NET __IPADDR(0xff000000)
! 105: #define IN_CLASSA_NSHIFT 24
! 106: #define IN_CLASSA_HOST __IPADDR(0x00ffffff)
! 107: #define IN_CLASSA_MAX 128
! 108:
! 109: #define IN_CLASSB(i) (((u_int32_t)(i) & __IPADDR(0xc0000000)) == \
! 110: __IPADDR(0x80000000))
! 111: #define IN_CLASSB_NET __IPADDR(0xffff0000)
! 112: #define IN_CLASSB_NSHIFT 16
! 113: #define IN_CLASSB_HOST __IPADDR(0x0000ffff)
! 114: #define IN_CLASSB_MAX 65536
! 115:
! 116: #define IN_CLASSC(i) (((u_int32_t)(i) & __IPADDR(0xe0000000)) == \
! 117: __IPADDR(0xc0000000))
! 118: #define IN_CLASSC_NET __IPADDR(0xffffff00)
! 119: #define IN_CLASSC_NSHIFT 8
! 120: #define IN_CLASSC_HOST __IPADDR(0x000000ff)
! 121:
! 122: #define IN_CLASSD(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
! 123: __IPADDR(0xe0000000))
! 124: /* These ones aren't really net and host fields, but routing needn't know. */
! 125: #define IN_CLASSD_NET __IPADDR(0xf0000000)
! 126: #define IN_CLASSD_NSHIFT 28
! 127: #define IN_CLASSD_HOST __IPADDR(0x0fffffff)
! 128: #define IN_MULTICAST(i) IN_CLASSD(i)
! 129:
! 130: #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
! 131: __IPADDR(0xf0000000))
! 132: #define IN_BADCLASS(i) (((u_int32_t)(i) & __IPADDR(0xf0000000)) == \
! 133: __IPADDR(0xf0000000))
! 134:
! 135: #define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & __IPADDR(0xffffff00)) == \
! 136: __IPADDR(0xe0000000))
! 137:
! 138: #define INADDR_ANY __IPADDR(0x00000000)
! 139: #define INADDR_LOOPBACK __IPADDR(0x7f000001)
! 140: #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */
! 141: #ifndef _KERNEL
! 142: #define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */
! 143: #endif
! 144:
! 145: #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */
! 146: #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */
! 147:
! 148: #define IN_LOOPBACKNET 127 /* official! */
! 149:
! 150: /*
! 151: * Socket address, internet style.
! 152: */
! 153: struct sockaddr_in {
! 154: u_int8_t sin_len;
! 155: u_int8_t sin_family;
! 156: u_int16_t sin_port;
! 157: struct in_addr sin_addr;
! 158: int8_t sin_zero[8];
! 159: };
! 160:
! 161: /*
! 162: * Structure used to describe IP options.
! 163: * Used to store options internally, to pass them to a process,
! 164: * or to restore options retrieved earlier.
! 165: * The ip_dst is used for the first-hop gateway when using a source route
! 166: * (this gets put into the header proper).
! 167: */
! 168: struct ip_opts {
! 169: struct in_addr ip_dst; /* first hop, 0 w/o src rt */
! 170: int8_t ip_opts[40]; /* actually variable in size */
! 171: };
! 172:
! 173: /*
! 174: * Options for use with [gs]etsockopt at the IP level.
! 175: * First word of comment is data type; bool is stored in int.
! 176: */
! 177: #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
! 178: #define IP_HDRINCL 2 /* int; header is included with data */
! 179: #define IP_TOS 3 /* int; IP type of service and preced. */
! 180: #define IP_TTL 4 /* int; IP time to live */
! 181: #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
! 182: #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
! 183: #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
! 184: #define IP_RETOPTS 8 /* ip_opts; set/get IP options */
! 185: #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */
! 186: #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
! 187: #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
! 188: #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
! 189: #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
! 190: #define IP_RECVIF 20 /* bool; receive reception if w/dgram */
! 191: #define IP_ERRORMTU 21 /* int; get MTU of last xmit = EMSGSIZE */
! 192:
! 193: /*
! 194: * Defaults and limits for options
! 195: */
! 196: #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
! 197: #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
! 198: #define IP_MAX_MEMBERSHIPS 20 /* per socket; must fit in one mbuf */
! 199:
! 200: /*
! 201: * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
! 202: */
! 203: struct ip_mreq {
! 204: struct in_addr imr_multiaddr; /* IP multicast address of group */
! 205: struct in_addr imr_interface; /* local IP address of interface */
! 206: };
! 207:
! 208: /*
! 209: * Definitions for inet sysctl operations.
! 210: *
! 211: * Third level is protocol number.
! 212: * Fourth level is desired variable within that protocol.
! 213: */
! 214: #define IPPROTO_MAXID (IPPROTO_IDP + 1) /* don't list to IPPROTO_MAX */
! 215:
! 216: #define CTL_IPPROTO_NAMES { \
! 217: { "ip", CTLTYPE_NODE }, \
! 218: { "icmp", CTLTYPE_NODE }, \
! 219: { "igmp", CTLTYPE_NODE }, \
! 220: { "ggp", CTLTYPE_NODE }, \
! 221: { 0, 0 }, \
! 222: { 0, 0 }, \
! 223: { "tcp", CTLTYPE_NODE }, \
! 224: { 0, 0 }, \
! 225: { "egp", CTLTYPE_NODE }, \
! 226: { 0, 0 }, \
! 227: { 0, 0 }, \
! 228: { 0, 0 }, \
! 229: { "pup", CTLTYPE_NODE }, \
! 230: { 0, 0 }, \
! 231: { 0, 0 }, \
! 232: { 0, 0 }, \
! 233: { 0, 0 }, \
! 234: { "udp", CTLTYPE_NODE }, \
! 235: { 0, 0 }, \
! 236: { 0, 0 }, \
! 237: { 0, 0 }, \
! 238: { 0, 0 }, \
! 239: { "idp", CTLTYPE_NODE }, \
! 240: { 0, 0 }, \
! 241: { 0, 0 }, \
! 242: { 0, 0 }, \
! 243: { 0, 0 }, \
! 244: { 0, 0 }, \
! 245: { 0, 0 }, \
! 246: { 0, 0 }, \
! 247: { 0, 0 }, \
! 248: { 0, 0 }, \
! 249: { 0, 0 }, \
! 250: { 0, 0 }, \
! 251: { 0, 0 }, \
! 252: { 0, 0 }, \
! 253: { 0, 0 }, \
! 254: { 0, 0 }, \
! 255: { 0, 0 }, \
! 256: { 0, 0 }, \
! 257: { 0, 0 }, \
! 258: { 0, 0 }, \
! 259: { 0, 0 }, \
! 260: { 0, 0 }, \
! 261: { 0, 0 }, \
! 262: { 0, 0 }, \
! 263: { 0, 0 }, \
! 264: { 0, 0 }, \
! 265: { 0, 0 }, \
! 266: { 0, 0 }, \
! 267: { 0, 0 }, \
! 268: { 0, 0 }, \
! 269: { 0, 0 }, \
! 270: { 0, 0 }, \
! 271: { 0, 0 }, \
! 272: { 0, 0 }, \
! 273: { 0, 0 }, \
! 274: { 0, 0 }, \
! 275: { 0, 0 }, \
! 276: { 0, 0 }, \
! 277: { 0, 0 }, \
! 278: { 0, 0 }, \
! 279: { 0, 0 }, \
! 280: { 0, 0 }, \
! 281: { 0, 0 }, \
! 282: { 0, 0 }, \
! 283: { 0, 0 }, \
! 284: { 0, 0 }, \
! 285: { 0, 0 }, \
! 286: { 0, 0 }, \
! 287: { 0, 0 }, \
! 288: { 0, 0 }, \
! 289: { 0, 0 }, \
! 290: { 0, 0 }, \
! 291: { 0, 0 }, \
! 292: { 0, 0 }, \
! 293: { 0, 0 }, \
! 294: { 0, 0 }, \
! 295: { 0, 0 }, \
! 296: { 0, 0 }, \
! 297: { 0, 0 }, \
! 298: { 0, 0 }, \
! 299: { 0, 0 }, \
! 300: { 0, 0 }, \
! 301: { 0, 0 }, \
! 302: { 0, 0 }, \
! 303: { 0, 0 }, \
! 304: { 0, 0 }, \
! 305: { 0, 0 }, \
! 306: { 0, 0 }, \
! 307: { 0, 0 }, \
! 308: { 0, 0 }, \
! 309: { 0, 0 }, \
! 310: { 0, 0 }, \
! 311: { 0, 0 }, \
! 312: { 0, 0 }, \
! 313: { 0, 0 }, \
! 314: { 0, 0 }, \
! 315: { 0, 0 }, \
! 316: { 0, 0 }, \
! 317: { 0, 0 }, \
! 318: { 0, 0 }, \
! 319: { 0, 0 }, \
! 320: { "pim", CTLTYPE_NODE }, \
! 321: }
! 322:
! 323: /*
! 324: * Names for IP sysctl objects
! 325: */
! 326: #define IPCTL_FORWARDING 1 /* act as router */
! 327: #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
! 328: #define IPCTL_DEFTTL 3 /* default TTL */
! 329: #ifdef notyet
! 330: #define IPCTL_DEFMTU 4 /* default MTU */
! 331: #endif
! 332: #define IPCTL_FORWSRCRT 5 /* forward source-routed packets */
! 333: #define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */
! 334: #define IPCTL_ALLOWSRCRT 7 /* allow/drop all source-routed pkts */
! 335: #define IPCTL_SUBNETSARELOCAL 8 /* treat subnets as local addresses */
! 336: #define IPCTL_MTUDISC 9 /* allow path MTU discovery */
! 337: #define IPCTL_MAXID 10
! 338:
! 339: #define IPCTL_NAMES { \
! 340: { 0, 0 }, \
! 341: { "forwarding", CTLTYPE_INT }, \
! 342: { "redirect", CTLTYPE_INT }, \
! 343: { "ttl", CTLTYPE_INT }, \
! 344: { "mtu", CTLTYPE_INT }, \
! 345: { "forwsrcrt", CTLTYPE_INT }, \
! 346: { "directed-broadcast", CTLTYPE_INT }, \
! 347: { "allowsrcrt", CTLTYPE_INT }, \
! 348: { "subnetsarelocal", CTLTYPE_INT }, \
! 349: { "mtudisc", CTLTYPE_INT }, \
! 350: }
! 351:
! 352:
! 353: #ifdef _KERNEL
! 354: extern struct in_addr zeroin_addr;
! 355:
! 356: int in_broadcast __P((struct in_addr, struct ifnet *));
! 357: int in_canforward __P((struct in_addr));
! 358: int in_cksum __P((struct mbuf *, int));
! 359: int in_localaddr __P((struct in_addr));
! 360: void in_socktrim __P((struct sockaddr_in *));
! 361:
! 362: #define in_hosteq(s,t) ((s).s_addr == (t).s_addr)
! 363: #define in_nullhost(x) ((x).s_addr == INADDR_ANY)
! 364:
! 365: #define satosin(sa) ((struct sockaddr_in *)(sa))
! 366: #define sintosa(sin) ((struct sockaddr *)(sin))
! 367: #define ifatoia(ifa) ((struct in_ifaddr *)(ifa))
! 368: #endif
! 369: #endif /* !_NETINET_IN_H_ */
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