1*0a6a1f1dSLionel Sambuc /* $NetBSD: in.h,v 1.97 2015/05/02 14:41:32 roy Exp $ */
27f2d47d8SEvgeniy Ivanov
37f2d47d8SEvgeniy Ivanov /*
47f2d47d8SEvgeniy Ivanov * Copyright (c) 1982, 1986, 1990, 1993
57f2d47d8SEvgeniy Ivanov * The Regents of the University of California. All rights reserved.
67f2d47d8SEvgeniy Ivanov *
77f2d47d8SEvgeniy Ivanov * Redistribution and use in source and binary forms, with or without
87f2d47d8SEvgeniy Ivanov * modification, are permitted provided that the following conditions
97f2d47d8SEvgeniy Ivanov * are met:
107f2d47d8SEvgeniy Ivanov * 1. Redistributions of source code must retain the above copyright
117f2d47d8SEvgeniy Ivanov * notice, this list of conditions and the following disclaimer.
127f2d47d8SEvgeniy Ivanov * 2. Redistributions in binary form must reproduce the above copyright
137f2d47d8SEvgeniy Ivanov * notice, this list of conditions and the following disclaimer in the
147f2d47d8SEvgeniy Ivanov * documentation and/or other materials provided with the distribution.
157f2d47d8SEvgeniy Ivanov * 3. Neither the name of the University nor the names of its contributors
167f2d47d8SEvgeniy Ivanov * may be used to endorse or promote products derived from this software
177f2d47d8SEvgeniy Ivanov * without specific prior written permission.
187f2d47d8SEvgeniy Ivanov *
197f2d47d8SEvgeniy Ivanov * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
207f2d47d8SEvgeniy Ivanov * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
217f2d47d8SEvgeniy Ivanov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
227f2d47d8SEvgeniy Ivanov * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
237f2d47d8SEvgeniy Ivanov * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
247f2d47d8SEvgeniy Ivanov * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
257f2d47d8SEvgeniy Ivanov * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
267f2d47d8SEvgeniy Ivanov * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
277f2d47d8SEvgeniy Ivanov * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
287f2d47d8SEvgeniy Ivanov * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
297f2d47d8SEvgeniy Ivanov * SUCH DAMAGE.
307f2d47d8SEvgeniy Ivanov *
317f2d47d8SEvgeniy Ivanov * @(#)in.h 8.3 (Berkeley) 1/3/94
327f2d47d8SEvgeniy Ivanov */
337f2d47d8SEvgeniy Ivanov
347f2d47d8SEvgeniy Ivanov /*
357f2d47d8SEvgeniy Ivanov * Constants and structures defined by the internet system,
367f2d47d8SEvgeniy Ivanov * Per RFC 790, September 1981, and numerous additions.
377f2d47d8SEvgeniy Ivanov */
387f2d47d8SEvgeniy Ivanov
397f2d47d8SEvgeniy Ivanov #ifndef _NETINET_IN_H_
407f2d47d8SEvgeniy Ivanov #define _NETINET_IN_H_
417f2d47d8SEvgeniy Ivanov
4284d9c625SLionel Sambuc #include <sys/featuretest.h>
437f2d47d8SEvgeniy Ivanov #include <machine/int_types.h>
447f2d47d8SEvgeniy Ivanov
457f2d47d8SEvgeniy Ivanov #ifndef uint8_t
467f2d47d8SEvgeniy Ivanov typedef __uint8_t uint8_t;
477f2d47d8SEvgeniy Ivanov #define uint8_t __uint8_t
487f2d47d8SEvgeniy Ivanov #endif
497f2d47d8SEvgeniy Ivanov
507f2d47d8SEvgeniy Ivanov #ifndef uint32_t
517f2d47d8SEvgeniy Ivanov typedef __uint32_t uint32_t;
527f2d47d8SEvgeniy Ivanov #define uint32_t __uint32_t
537f2d47d8SEvgeniy Ivanov #endif
547f2d47d8SEvgeniy Ivanov
557f2d47d8SEvgeniy Ivanov #include <sys/ansi.h>
567f2d47d8SEvgeniy Ivanov
577f2d47d8SEvgeniy Ivanov #ifndef in_addr_t
587f2d47d8SEvgeniy Ivanov typedef __in_addr_t in_addr_t;
597f2d47d8SEvgeniy Ivanov #define in_addr_t __in_addr_t
607f2d47d8SEvgeniy Ivanov #endif
617f2d47d8SEvgeniy Ivanov
627f2d47d8SEvgeniy Ivanov #ifndef in_port_t
637f2d47d8SEvgeniy Ivanov typedef __in_port_t in_port_t;
647f2d47d8SEvgeniy Ivanov #define in_port_t __in_port_t
657f2d47d8SEvgeniy Ivanov #endif
667f2d47d8SEvgeniy Ivanov
677f2d47d8SEvgeniy Ivanov #ifndef sa_family_t
687f2d47d8SEvgeniy Ivanov typedef __sa_family_t sa_family_t;
697f2d47d8SEvgeniy Ivanov #define sa_family_t __sa_family_t
707f2d47d8SEvgeniy Ivanov #endif
717f2d47d8SEvgeniy Ivanov
727f2d47d8SEvgeniy Ivanov /*
737f2d47d8SEvgeniy Ivanov * Protocols
747f2d47d8SEvgeniy Ivanov */
757f2d47d8SEvgeniy Ivanov #define IPPROTO_IP 0 /* dummy for IP */
767f2d47d8SEvgeniy Ivanov #define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */
777f2d47d8SEvgeniy Ivanov #define IPPROTO_ICMP 1 /* control message protocol */
787f2d47d8SEvgeniy Ivanov #define IPPROTO_IGMP 2 /* group mgmt protocol */
797f2d47d8SEvgeniy Ivanov #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
807f2d47d8SEvgeniy Ivanov #define IPPROTO_IPV4 4 /* IP header */
817f2d47d8SEvgeniy Ivanov #define IPPROTO_IPIP 4 /* IP inside IP */
827f2d47d8SEvgeniy Ivanov #define IPPROTO_TCP 6 /* tcp */
837f2d47d8SEvgeniy Ivanov #define IPPROTO_EGP 8 /* exterior gateway protocol */
847f2d47d8SEvgeniy Ivanov #define IPPROTO_PUP 12 /* pup */
857f2d47d8SEvgeniy Ivanov #define IPPROTO_UDP 17 /* user datagram protocol */
867f2d47d8SEvgeniy Ivanov #define IPPROTO_IDP 22 /* xns idp */
877f2d47d8SEvgeniy Ivanov #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
88*0a6a1f1dSLionel Sambuc #define IPPROTO_DCCP 33 /* DCCP */
897f2d47d8SEvgeniy Ivanov #define IPPROTO_IPV6 41 /* IP6 header */
907f2d47d8SEvgeniy Ivanov #define IPPROTO_ROUTING 43 /* IP6 routing header */
917f2d47d8SEvgeniy Ivanov #define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */
927f2d47d8SEvgeniy Ivanov #define IPPROTO_RSVP 46 /* resource reservation */
937f2d47d8SEvgeniy Ivanov #define IPPROTO_GRE 47 /* GRE encaps RFC 1701 */
947f2d47d8SEvgeniy Ivanov #define IPPROTO_ESP 50 /* encap. security payload */
957f2d47d8SEvgeniy Ivanov #define IPPROTO_AH 51 /* authentication header */
967f2d47d8SEvgeniy Ivanov #define IPPROTO_MOBILE 55 /* IP Mobility RFC 2004 */
977f2d47d8SEvgeniy Ivanov #define IPPROTO_IPV6_ICMP 58 /* IPv6 ICMP */
987f2d47d8SEvgeniy Ivanov #define IPPROTO_ICMPV6 58 /* ICMP6 */
997f2d47d8SEvgeniy Ivanov #define IPPROTO_NONE 59 /* IP6 no next header */
1007f2d47d8SEvgeniy Ivanov #define IPPROTO_DSTOPTS 60 /* IP6 destination option */
1017f2d47d8SEvgeniy Ivanov #define IPPROTO_EON 80 /* ISO cnlp */
1027f2d47d8SEvgeniy Ivanov #define IPPROTO_ETHERIP 97 /* Ethernet-in-IP */
1037f2d47d8SEvgeniy Ivanov #define IPPROTO_ENCAP 98 /* encapsulation header */
1047f2d47d8SEvgeniy Ivanov #define IPPROTO_PIM 103 /* Protocol indep. multicast */
1057f2d47d8SEvgeniy Ivanov #define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */
1067f2d47d8SEvgeniy Ivanov #define IPPROTO_VRRP 112 /* VRRP RFC 2338 */
1077f2d47d8SEvgeniy Ivanov #define IPPROTO_CARP 112 /* Common Address Resolution Protocol */
1087f2d47d8SEvgeniy Ivanov #define IPPROTO_PFSYNC 240 /* PFSYNC */
1097f2d47d8SEvgeniy Ivanov #define IPPROTO_RAW 255 /* raw IP packet */
1107f2d47d8SEvgeniy Ivanov #define IPPROTO_MAX 256
1117f2d47d8SEvgeniy Ivanov
1127f2d47d8SEvgeniy Ivanov /* last return value of *_input(), meaning "all job for this pkt is done". */
1137f2d47d8SEvgeniy Ivanov #define IPPROTO_DONE 257
1147f2d47d8SEvgeniy Ivanov
1157f2d47d8SEvgeniy Ivanov /* sysctl placeholder for (FAST_)IPSEC */
1167f2d47d8SEvgeniy Ivanov #define CTL_IPPROTO_IPSEC 258
1177f2d47d8SEvgeniy Ivanov
1187f2d47d8SEvgeniy Ivanov
1197f2d47d8SEvgeniy Ivanov /*
1207f2d47d8SEvgeniy Ivanov * Local port number conventions:
1217f2d47d8SEvgeniy Ivanov *
1227f2d47d8SEvgeniy Ivanov * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
1237f2d47d8SEvgeniy Ivanov * unless a kernel is compiled with IPNOPRIVPORTS defined.
1247f2d47d8SEvgeniy Ivanov *
1257f2d47d8SEvgeniy Ivanov * When a user does a bind(2) or connect(2) with a port number of zero,
1267f2d47d8SEvgeniy Ivanov * a non-conflicting local port address is chosen.
1277f2d47d8SEvgeniy Ivanov *
1287f2d47d8SEvgeniy Ivanov * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
1297f2d47d8SEvgeniy Ivanov * that is settable by sysctl(3); net.inet.ip.anonportmin and
1307f2d47d8SEvgeniy Ivanov * net.inet.ip.anonportmax respectively.
1317f2d47d8SEvgeniy Ivanov *
1327f2d47d8SEvgeniy Ivanov * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
1337f2d47d8SEvgeniy Ivanov * default assignment range.
1347f2d47d8SEvgeniy Ivanov *
1357f2d47d8SEvgeniy Ivanov * The value IP_PORTRANGE_DEFAULT causes the default behavior.
1367f2d47d8SEvgeniy Ivanov *
1377f2d47d8SEvgeniy Ivanov * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
1387f2d47d8SEvgeniy Ivanov * and exists only for FreeBSD compatibility purposes.
1397f2d47d8SEvgeniy Ivanov *
1407f2d47d8SEvgeniy Ivanov * The value IP_PORTRANGE_LOW changes the range to the "low" are
1417f2d47d8SEvgeniy Ivanov * that is (by convention) restricted to privileged processes.
1427f2d47d8SEvgeniy Ivanov * This convention is based on "vouchsafe" principles only.
1437f2d47d8SEvgeniy Ivanov * It is only secure if you trust the remote host to restrict these ports.
1447f2d47d8SEvgeniy Ivanov * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
1457f2d47d8SEvgeniy Ivanov */
1467f2d47d8SEvgeniy Ivanov
1477f2d47d8SEvgeniy Ivanov #define IPPORT_RESERVED 1024
1487f2d47d8SEvgeniy Ivanov #define IPPORT_ANONMIN 49152
1497f2d47d8SEvgeniy Ivanov #define IPPORT_ANONMAX 65535
1507f2d47d8SEvgeniy Ivanov #define IPPORT_RESERVEDMIN 600
1517f2d47d8SEvgeniy Ivanov #define IPPORT_RESERVEDMAX (IPPORT_RESERVED-1)
1527f2d47d8SEvgeniy Ivanov
1537f2d47d8SEvgeniy Ivanov /*
1547f2d47d8SEvgeniy Ivanov * Internet address (a structure for historical reasons)
1557f2d47d8SEvgeniy Ivanov */
1567f2d47d8SEvgeniy Ivanov struct in_addr {
1577f2d47d8SEvgeniy Ivanov in_addr_t s_addr;
1587f2d47d8SEvgeniy Ivanov } __packed;
1597f2d47d8SEvgeniy Ivanov
1607f2d47d8SEvgeniy Ivanov /*
1617f2d47d8SEvgeniy Ivanov * Definitions of bits in internet address integers.
1627f2d47d8SEvgeniy Ivanov * On subnets, the decomposition of addresses to host and net parts
1637f2d47d8SEvgeniy Ivanov * is done according to subnet mask, not the masks here.
1647f2d47d8SEvgeniy Ivanov *
1657f2d47d8SEvgeniy Ivanov * By byte-swapping the constants, we avoid ever having to byte-swap IP
1667f2d47d8SEvgeniy Ivanov * addresses inside the kernel. Unfortunately, user-level programs rely
1677f2d47d8SEvgeniy Ivanov * on these macros not doing byte-swapping.
1687f2d47d8SEvgeniy Ivanov */
1697f2d47d8SEvgeniy Ivanov #ifdef _KERNEL
1707f2d47d8SEvgeniy Ivanov #define __IPADDR(x) ((uint32_t) htonl((uint32_t)(x)))
1717f2d47d8SEvgeniy Ivanov #else
1727f2d47d8SEvgeniy Ivanov #define __IPADDR(x) ((uint32_t)(x))
1737f2d47d8SEvgeniy Ivanov #endif
1747f2d47d8SEvgeniy Ivanov
1757f2d47d8SEvgeniy Ivanov #define IN_CLASSA(i) (((uint32_t)(i) & __IPADDR(0x80000000)) == \
1767f2d47d8SEvgeniy Ivanov __IPADDR(0x00000000))
1777f2d47d8SEvgeniy Ivanov #define IN_CLASSA_NET __IPADDR(0xff000000)
1787f2d47d8SEvgeniy Ivanov #define IN_CLASSA_NSHIFT 24
1797f2d47d8SEvgeniy Ivanov #define IN_CLASSA_HOST __IPADDR(0x00ffffff)
1807f2d47d8SEvgeniy Ivanov #define IN_CLASSA_MAX 128
1817f2d47d8SEvgeniy Ivanov
1827f2d47d8SEvgeniy Ivanov #define IN_CLASSB(i) (((uint32_t)(i) & __IPADDR(0xc0000000)) == \
1837f2d47d8SEvgeniy Ivanov __IPADDR(0x80000000))
1847f2d47d8SEvgeniy Ivanov #define IN_CLASSB_NET __IPADDR(0xffff0000)
1857f2d47d8SEvgeniy Ivanov #define IN_CLASSB_NSHIFT 16
1867f2d47d8SEvgeniy Ivanov #define IN_CLASSB_HOST __IPADDR(0x0000ffff)
1877f2d47d8SEvgeniy Ivanov #define IN_CLASSB_MAX 65536
1887f2d47d8SEvgeniy Ivanov
1897f2d47d8SEvgeniy Ivanov #define IN_CLASSC(i) (((uint32_t)(i) & __IPADDR(0xe0000000)) == \
1907f2d47d8SEvgeniy Ivanov __IPADDR(0xc0000000))
1917f2d47d8SEvgeniy Ivanov #define IN_CLASSC_NET __IPADDR(0xffffff00)
1927f2d47d8SEvgeniy Ivanov #define IN_CLASSC_NSHIFT 8
1937f2d47d8SEvgeniy Ivanov #define IN_CLASSC_HOST __IPADDR(0x000000ff)
1947f2d47d8SEvgeniy Ivanov
1957f2d47d8SEvgeniy Ivanov #define IN_CLASSD(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \
1967f2d47d8SEvgeniy Ivanov __IPADDR(0xe0000000))
1977f2d47d8SEvgeniy Ivanov /* These ones aren't really net and host fields, but routing needn't know. */
1987f2d47d8SEvgeniy Ivanov #define IN_CLASSD_NET __IPADDR(0xf0000000)
1997f2d47d8SEvgeniy Ivanov #define IN_CLASSD_NSHIFT 28
2007f2d47d8SEvgeniy Ivanov #define IN_CLASSD_HOST __IPADDR(0x0fffffff)
2017f2d47d8SEvgeniy Ivanov #define IN_MULTICAST(i) IN_CLASSD(i)
2027f2d47d8SEvgeniy Ivanov
2037f2d47d8SEvgeniy Ivanov #define IN_EXPERIMENTAL(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \
2047f2d47d8SEvgeniy Ivanov __IPADDR(0xf0000000))
2057f2d47d8SEvgeniy Ivanov #define IN_BADCLASS(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \
2067f2d47d8SEvgeniy Ivanov __IPADDR(0xf0000000))
2077f2d47d8SEvgeniy Ivanov
2087f2d47d8SEvgeniy Ivanov #define IN_LINKLOCAL(i) (((uint32_t)(i) & __IPADDR(0xffff0000)) == \
2097f2d47d8SEvgeniy Ivanov __IPADDR(0xa9fe0000))
2107f2d47d8SEvgeniy Ivanov
2117f2d47d8SEvgeniy Ivanov #define IN_PRIVATE(i) ((((uint32_t)(i) & __IPADDR(0xff000000)) == \
2127f2d47d8SEvgeniy Ivanov __IPADDR(0x0a000000)) || \
2137f2d47d8SEvgeniy Ivanov (((uint32_t)(i) & __IPADDR(0xfff00000)) == \
2147f2d47d8SEvgeniy Ivanov __IPADDR(0xac100000)) || \
2157f2d47d8SEvgeniy Ivanov (((uint32_t)(i) & __IPADDR(0xffff0000)) == \
2167f2d47d8SEvgeniy Ivanov __IPADDR(0xc0a80000)))
2177f2d47d8SEvgeniy Ivanov
2187f2d47d8SEvgeniy Ivanov #define IN_LOCAL_GROUP(i) (((uint32_t)(i) & __IPADDR(0xffffff00)) == \
2197f2d47d8SEvgeniy Ivanov __IPADDR(0xe0000000))
2207f2d47d8SEvgeniy Ivanov
2217f2d47d8SEvgeniy Ivanov #define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i))
2227f2d47d8SEvgeniy Ivanov
2237f2d47d8SEvgeniy Ivanov #define INADDR_ANY __IPADDR(0x00000000)
2247f2d47d8SEvgeniy Ivanov #define INADDR_LOOPBACK __IPADDR(0x7f000001)
2257f2d47d8SEvgeniy Ivanov #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */
2267f2d47d8SEvgeniy Ivanov #define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */
2277f2d47d8SEvgeniy Ivanov
2287f2d47d8SEvgeniy Ivanov #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */
2297f2d47d8SEvgeniy Ivanov #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */
2307f2d47d8SEvgeniy Ivanov #define INADDR_ALLRTRS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */
2317f2d47d8SEvgeniy Ivanov #define INADDR_CARP_GROUP __IPADDR(0xe0000012) /* 224.0.0.18 */
2327f2d47d8SEvgeniy Ivanov #define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */
2337f2d47d8SEvgeniy Ivanov
2347f2d47d8SEvgeniy Ivanov #define IN_LOOPBACKNET 127 /* official! */
2357f2d47d8SEvgeniy Ivanov
2367f2d47d8SEvgeniy Ivanov /*
2377f2d47d8SEvgeniy Ivanov * Socket address, internet style.
2387f2d47d8SEvgeniy Ivanov */
2397f2d47d8SEvgeniy Ivanov struct sockaddr_in {
2407f2d47d8SEvgeniy Ivanov uint8_t sin_len;
2417f2d47d8SEvgeniy Ivanov sa_family_t sin_family;
2427f2d47d8SEvgeniy Ivanov in_port_t sin_port;
2437f2d47d8SEvgeniy Ivanov struct in_addr sin_addr;
2447f2d47d8SEvgeniy Ivanov __int8_t sin_zero[8];
2457f2d47d8SEvgeniy Ivanov };
2467f2d47d8SEvgeniy Ivanov
2477f2d47d8SEvgeniy Ivanov #define INET_ADDRSTRLEN 16
2487f2d47d8SEvgeniy Ivanov
2497f2d47d8SEvgeniy Ivanov /*
2507f2d47d8SEvgeniy Ivanov * Structure used to describe IP options.
2517f2d47d8SEvgeniy Ivanov * Used to store options internally, to pass them to a process,
2527f2d47d8SEvgeniy Ivanov * or to restore options retrieved earlier.
2537f2d47d8SEvgeniy Ivanov * The ip_dst is used for the first-hop gateway when using a source route
2547f2d47d8SEvgeniy Ivanov * (this gets put into the header proper).
2557f2d47d8SEvgeniy Ivanov */
2567f2d47d8SEvgeniy Ivanov struct ip_opts {
2577f2d47d8SEvgeniy Ivanov struct in_addr ip_dst; /* first hop, 0 w/o src rt */
2587f2d47d8SEvgeniy Ivanov #if defined(__cplusplus)
2597f2d47d8SEvgeniy Ivanov __int8_t Ip_opts[40]; /* actually variable in size */
2607f2d47d8SEvgeniy Ivanov #else
2617f2d47d8SEvgeniy Ivanov __int8_t ip_opts[40]; /* actually variable in size */
2627f2d47d8SEvgeniy Ivanov #endif
2637f2d47d8SEvgeniy Ivanov };
2647f2d47d8SEvgeniy Ivanov
2657f2d47d8SEvgeniy Ivanov /*
2667f2d47d8SEvgeniy Ivanov * Options for use with [gs]etsockopt at the IP level.
2677f2d47d8SEvgeniy Ivanov * First word of comment is data type; bool is stored in int.
2687f2d47d8SEvgeniy Ivanov */
2697f2d47d8SEvgeniy Ivanov #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
2707f2d47d8SEvgeniy Ivanov #define IP_HDRINCL 2 /* int; header is included with data */
2717f2d47d8SEvgeniy Ivanov #define IP_TOS 3 /* int; IP type of service and preced. */
2727f2d47d8SEvgeniy Ivanov #define IP_TTL 4 /* int; IP time to live */
2737f2d47d8SEvgeniy Ivanov #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
2747f2d47d8SEvgeniy Ivanov #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
2757f2d47d8SEvgeniy Ivanov #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
2767f2d47d8SEvgeniy Ivanov #define IP_RETOPTS 8 /* ip_opts; set/get IP options */
2777f2d47d8SEvgeniy Ivanov #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */
2787f2d47d8SEvgeniy Ivanov #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
2797f2d47d8SEvgeniy Ivanov #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
280*0a6a1f1dSLionel Sambuc /* The add and drop membership option numbers need to match with the v6 ones */
2817f2d47d8SEvgeniy Ivanov #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
2827f2d47d8SEvgeniy Ivanov #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
28301624e6fSBen Gras #define IP_PORTALGO 18 /* int; port selection algo (rfc6056) */
2847f2d47d8SEvgeniy Ivanov #define IP_PORTRANGE 19 /* int; range to use for ephemeral port */
2857f2d47d8SEvgeniy Ivanov #define IP_RECVIF 20 /* bool; receive reception if w/dgram */
2867f2d47d8SEvgeniy Ivanov #define IP_ERRORMTU 21 /* int; get MTU of last xmit = EMSGSIZE */
2877f2d47d8SEvgeniy Ivanov #define IP_IPSEC_POLICY 22 /* struct; get/set security policy */
2887f2d47d8SEvgeniy Ivanov #define IP_RECVTTL 23 /* bool; receive IP TTL w/dgram */
2897f2d47d8SEvgeniy Ivanov #define IP_MINTTL 24 /* minimum TTL for packet or drop */
29084d9c625SLionel Sambuc #define IP_PKTINFO 25 /* int; send interface and src addr */
29184d9c625SLionel Sambuc #define IP_RECVPKTINFO 26 /* int; send interface and dst addr */
29284d9c625SLionel Sambuc
29384d9c625SLionel Sambuc /*
29484d9c625SLionel Sambuc * Information sent in the control message of a datagram socket for
29584d9c625SLionel Sambuc * IP_PKTINFO and IP_RECVPKTINFO.
29684d9c625SLionel Sambuc */
29784d9c625SLionel Sambuc struct in_pktinfo {
29884d9c625SLionel Sambuc struct in_addr ipi_addr; /* src/dst address */
29984d9c625SLionel Sambuc unsigned int ipi_ifindex; /* interface index */
30084d9c625SLionel Sambuc };
3017f2d47d8SEvgeniy Ivanov
3027f2d47d8SEvgeniy Ivanov /*
3037f2d47d8SEvgeniy Ivanov * Defaults and limits for options
3047f2d47d8SEvgeniy Ivanov */
3057f2d47d8SEvgeniy Ivanov #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
3067f2d47d8SEvgeniy Ivanov #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
3077f2d47d8SEvgeniy Ivanov #define IP_MAX_MEMBERSHIPS 20 /* per socket; must fit in one mbuf */
3087f2d47d8SEvgeniy Ivanov
3097f2d47d8SEvgeniy Ivanov /*
3107f2d47d8SEvgeniy Ivanov * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
3117f2d47d8SEvgeniy Ivanov */
3127f2d47d8SEvgeniy Ivanov struct ip_mreq {
3137f2d47d8SEvgeniy Ivanov struct in_addr imr_multiaddr; /* IP multicast address of group */
3147f2d47d8SEvgeniy Ivanov struct in_addr imr_interface; /* local IP address of interface */
3157f2d47d8SEvgeniy Ivanov };
3167f2d47d8SEvgeniy Ivanov
3177f2d47d8SEvgeniy Ivanov /*
3187f2d47d8SEvgeniy Ivanov * Argument for IP_PORTRANGE:
3197f2d47d8SEvgeniy Ivanov * - which range to search when port is unspecified at bind() or connect()
3207f2d47d8SEvgeniy Ivanov */
3217f2d47d8SEvgeniy Ivanov #define IP_PORTRANGE_DEFAULT 0 /* default range */
3227f2d47d8SEvgeniy Ivanov #define IP_PORTRANGE_HIGH 1 /* same as DEFAULT (FreeBSD compat) */
3237f2d47d8SEvgeniy Ivanov #define IP_PORTRANGE_LOW 2 /* use privileged range */
3247f2d47d8SEvgeniy Ivanov
3257f2d47d8SEvgeniy Ivanov #if defined(_NETBSD_SOURCE)
3267f2d47d8SEvgeniy Ivanov /*
3277f2d47d8SEvgeniy Ivanov * Definitions for inet sysctl operations.
3287f2d47d8SEvgeniy Ivanov *
3297f2d47d8SEvgeniy Ivanov * Third level is protocol number.
3307f2d47d8SEvgeniy Ivanov * Fourth level is desired variable within that protocol.
3317f2d47d8SEvgeniy Ivanov */
3327f2d47d8SEvgeniy Ivanov #define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */
3337f2d47d8SEvgeniy Ivanov
3347f2d47d8SEvgeniy Ivanov #define CTL_IPPROTO_NAMES { \
3357f2d47d8SEvgeniy Ivanov { "ip", CTLTYPE_NODE }, \
3367f2d47d8SEvgeniy Ivanov { "icmp", CTLTYPE_NODE }, \
3377f2d47d8SEvgeniy Ivanov { "igmp", CTLTYPE_NODE }, \
3387f2d47d8SEvgeniy Ivanov { "ggp", CTLTYPE_NODE }, \
3397f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3407f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3417f2d47d8SEvgeniy Ivanov { "tcp", CTLTYPE_NODE }, \
3427f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3437f2d47d8SEvgeniy Ivanov { "egp", CTLTYPE_NODE }, \
3447f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3457f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3467f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3477f2d47d8SEvgeniy Ivanov { "pup", CTLTYPE_NODE }, \
3487f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3497f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3507f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3517f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3527f2d47d8SEvgeniy Ivanov { "udp", CTLTYPE_NODE }, \
3537f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3547f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3557f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3567f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3577f2d47d8SEvgeniy Ivanov { "idp", CTLTYPE_NODE }, \
3587f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3597f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3607f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3617f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3627f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3637f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3647f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3657f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3667f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3677f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3687f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3697f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3707f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3717f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3727f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3737f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3747f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3757f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3767f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3777f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3787f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3797f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3807f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3817f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3827f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3837f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3847f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3857f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3867f2d47d8SEvgeniy Ivanov { "ipsec", CTLTYPE_NODE }, \
3877f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3887f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3897f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3907f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3917f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3927f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3937f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3947f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3957f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3967f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3977f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3987f2d47d8SEvgeniy Ivanov { 0, 0 }, \
3997f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4007f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4017f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4027f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4037f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4047f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4057f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4067f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4077f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4087f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4097f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4107f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4117f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4127f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4137f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4147f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4157f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4167f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4177f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4187f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4197f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4207f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4217f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4227f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4237f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4247f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4257f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4267f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4277f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4287f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4297f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4307f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4317f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4327f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4337f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4347f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4357f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4367f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4377f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4387f2d47d8SEvgeniy Ivanov { "pim", CTLTYPE_NODE }, \
4397f2d47d8SEvgeniy Ivanov }
4407f2d47d8SEvgeniy Ivanov
4417f2d47d8SEvgeniy Ivanov /*
4427f2d47d8SEvgeniy Ivanov * Names for IP sysctl objects
4437f2d47d8SEvgeniy Ivanov */
4447f2d47d8SEvgeniy Ivanov #define IPCTL_FORWARDING 1 /* act as router */
4457f2d47d8SEvgeniy Ivanov #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */
4467f2d47d8SEvgeniy Ivanov #define IPCTL_DEFTTL 3 /* default TTL */
4477f2d47d8SEvgeniy Ivanov #ifdef notyet
4487f2d47d8SEvgeniy Ivanov #define IPCTL_DEFMTU 4 /* default MTU */
4497f2d47d8SEvgeniy Ivanov #endif
4507f2d47d8SEvgeniy Ivanov #define IPCTL_FORWSRCRT 5 /* forward source-routed packets */
4517f2d47d8SEvgeniy Ivanov #define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */
4527f2d47d8SEvgeniy Ivanov #define IPCTL_ALLOWSRCRT 7 /* allow/drop all source-routed pkts */
4537f2d47d8SEvgeniy Ivanov #define IPCTL_SUBNETSARELOCAL 8 /* treat subnets as local addresses */
4547f2d47d8SEvgeniy Ivanov #define IPCTL_MTUDISC 9 /* allow path MTU discovery */
4557f2d47d8SEvgeniy Ivanov #define IPCTL_ANONPORTMIN 10 /* minimum ephemeral port */
4567f2d47d8SEvgeniy Ivanov #define IPCTL_ANONPORTMAX 11 /* maximum ephemeral port */
4577f2d47d8SEvgeniy Ivanov #define IPCTL_MTUDISCTIMEOUT 12 /* allow path MTU discovery */
4587f2d47d8SEvgeniy Ivanov #define IPCTL_MAXFLOWS 13 /* maximum ip flows allowed */
4597f2d47d8SEvgeniy Ivanov #define IPCTL_HOSTZEROBROADCAST 14 /* is host zero a broadcast addr? */
4607f2d47d8SEvgeniy Ivanov #define IPCTL_GIF_TTL 15 /* default TTL for gif encap packet */
4617f2d47d8SEvgeniy Ivanov #define IPCTL_LOWPORTMIN 16 /* minimum reserved port */
4627f2d47d8SEvgeniy Ivanov #define IPCTL_LOWPORTMAX 17 /* maximum reserved port */
4637f2d47d8SEvgeniy Ivanov #define IPCTL_MAXFRAGPACKETS 18 /* max packets reassembly queue */
4647f2d47d8SEvgeniy Ivanov #define IPCTL_GRE_TTL 19 /* default TTL for gre encap packet */
4657f2d47d8SEvgeniy Ivanov #define IPCTL_CHECKINTERFACE 20 /* drop pkts in from 'wrong' iface */
466*0a6a1f1dSLionel Sambuc #define IPCTL_IFQ 21 /* IP packet input queue */
4677f2d47d8SEvgeniy Ivanov #define IPCTL_RANDOMID 22 /* use random IP ids (if configured) */
4687f2d47d8SEvgeniy Ivanov #define IPCTL_LOOPBACKCKSUM 23 /* do IP checksum on loopback */
4697f2d47d8SEvgeniy Ivanov #define IPCTL_STATS 24 /* IP statistics */
470*0a6a1f1dSLionel Sambuc #define IPCTL_DAD_COUNT 25 /* DAD packets to send */
471*0a6a1f1dSLionel Sambuc #define IPCTL_MAXID 26
4727f2d47d8SEvgeniy Ivanov
4737f2d47d8SEvgeniy Ivanov #define IPCTL_NAMES { \
4747f2d47d8SEvgeniy Ivanov { 0, 0 }, \
4757f2d47d8SEvgeniy Ivanov { "forwarding", CTLTYPE_INT }, \
4767f2d47d8SEvgeniy Ivanov { "redirect", CTLTYPE_INT }, \
4777f2d47d8SEvgeniy Ivanov { "ttl", CTLTYPE_INT }, \
4787f2d47d8SEvgeniy Ivanov { "mtu", CTLTYPE_INT }, \
4797f2d47d8SEvgeniy Ivanov { "forwsrcrt", CTLTYPE_INT }, \
4807f2d47d8SEvgeniy Ivanov { "directed-broadcast", CTLTYPE_INT }, \
4817f2d47d8SEvgeniy Ivanov { "allowsrcrt", CTLTYPE_INT }, \
4827f2d47d8SEvgeniy Ivanov { "subnetsarelocal", CTLTYPE_INT }, \
4837f2d47d8SEvgeniy Ivanov { "mtudisc", CTLTYPE_INT }, \
4847f2d47d8SEvgeniy Ivanov { "anonportmin", CTLTYPE_INT }, \
4857f2d47d8SEvgeniy Ivanov { "anonportmax", CTLTYPE_INT }, \
4867f2d47d8SEvgeniy Ivanov { "mtudisctimeout", CTLTYPE_INT }, \
4877f2d47d8SEvgeniy Ivanov { "maxflows", CTLTYPE_INT }, \
4887f2d47d8SEvgeniy Ivanov { "hostzerobroadcast", CTLTYPE_INT }, \
4897f2d47d8SEvgeniy Ivanov { "gifttl", CTLTYPE_INT }, \
4907f2d47d8SEvgeniy Ivanov { "lowportmin", CTLTYPE_INT }, \
4917f2d47d8SEvgeniy Ivanov { "lowportmax", CTLTYPE_INT }, \
4927f2d47d8SEvgeniy Ivanov { "maxfragpackets", CTLTYPE_INT }, \
4937f2d47d8SEvgeniy Ivanov { "grettl", CTLTYPE_INT }, \
4947f2d47d8SEvgeniy Ivanov { "checkinterface", CTLTYPE_INT }, \
4957f2d47d8SEvgeniy Ivanov { "ifq", CTLTYPE_NODE }, \
4967f2d47d8SEvgeniy Ivanov { "random_id", CTLTYPE_INT }, \
4977f2d47d8SEvgeniy Ivanov { "do_loopback_cksum", CTLTYPE_INT }, \
4987f2d47d8SEvgeniy Ivanov { "stats", CTLTYPE_STRUCT }, \
499*0a6a1f1dSLionel Sambuc { "dad_count", CTLTYPE_INT }, \
5007f2d47d8SEvgeniy Ivanov }
5017f2d47d8SEvgeniy Ivanov #endif /* _NETBSD_SOURCE */
5027f2d47d8SEvgeniy Ivanov
5037f2d47d8SEvgeniy Ivanov /* INET6 stuff */
5047f2d47d8SEvgeniy Ivanov #define __KAME_NETINET_IN_H_INCLUDED_
5057f2d47d8SEvgeniy Ivanov #include <netinet6/in6.h>
5067f2d47d8SEvgeniy Ivanov #undef __KAME_NETINET_IN_H_INCLUDED_
5077f2d47d8SEvgeniy Ivanov
5087f2d47d8SEvgeniy Ivanov #ifdef _KERNEL
5097f2d47d8SEvgeniy Ivanov /*
5107f2d47d8SEvgeniy Ivanov * in_cksum_phdr:
5117f2d47d8SEvgeniy Ivanov *
5127f2d47d8SEvgeniy Ivanov * Compute significant parts of the IPv4 checksum pseudo-header
5137f2d47d8SEvgeniy Ivanov * for use in a delayed TCP/UDP checksum calculation.
5147f2d47d8SEvgeniy Ivanov *
5157f2d47d8SEvgeniy Ivanov * Args:
5167f2d47d8SEvgeniy Ivanov *
5177f2d47d8SEvgeniy Ivanov * src Source IP address
5187f2d47d8SEvgeniy Ivanov * dst Destination IP address
5197f2d47d8SEvgeniy Ivanov * lenproto htons(proto-hdr-len + proto-number)
5207f2d47d8SEvgeniy Ivanov */
5217f2d47d8SEvgeniy Ivanov static __inline u_int16_t __unused
in_cksum_phdr(u_int32_t src,u_int32_t dst,u_int32_t lenproto)5227f2d47d8SEvgeniy Ivanov in_cksum_phdr(u_int32_t src, u_int32_t dst, u_int32_t lenproto)
5237f2d47d8SEvgeniy Ivanov {
5247f2d47d8SEvgeniy Ivanov u_int32_t sum;
5257f2d47d8SEvgeniy Ivanov
5267f2d47d8SEvgeniy Ivanov sum = lenproto +
5277f2d47d8SEvgeniy Ivanov (u_int16_t)(src >> 16) +
5287f2d47d8SEvgeniy Ivanov (u_int16_t)(src /*& 0xffff*/) +
5297f2d47d8SEvgeniy Ivanov (u_int16_t)(dst >> 16) +
5307f2d47d8SEvgeniy Ivanov (u_int16_t)(dst /*& 0xffff*/);
5317f2d47d8SEvgeniy Ivanov
5327f2d47d8SEvgeniy Ivanov sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);
5337f2d47d8SEvgeniy Ivanov
5347f2d47d8SEvgeniy Ivanov if (sum > 0xffff)
5357f2d47d8SEvgeniy Ivanov sum -= 0xffff;
5367f2d47d8SEvgeniy Ivanov
5377f2d47d8SEvgeniy Ivanov return (sum);
5387f2d47d8SEvgeniy Ivanov }
5397f2d47d8SEvgeniy Ivanov
5407f2d47d8SEvgeniy Ivanov /*
5417f2d47d8SEvgeniy Ivanov * in_cksum_addword:
5427f2d47d8SEvgeniy Ivanov *
5437f2d47d8SEvgeniy Ivanov * Add the two 16-bit network-order values, carry, and return.
5447f2d47d8SEvgeniy Ivanov */
5457f2d47d8SEvgeniy Ivanov static __inline u_int16_t __unused
in_cksum_addword(u_int16_t a,u_int16_t b)5467f2d47d8SEvgeniy Ivanov in_cksum_addword(u_int16_t a, u_int16_t b)
5477f2d47d8SEvgeniy Ivanov {
5487f2d47d8SEvgeniy Ivanov u_int32_t sum = a + b;
5497f2d47d8SEvgeniy Ivanov
5507f2d47d8SEvgeniy Ivanov if (sum > 0xffff)
5517f2d47d8SEvgeniy Ivanov sum -= 0xffff;
5527f2d47d8SEvgeniy Ivanov
5537f2d47d8SEvgeniy Ivanov return (sum);
5547f2d47d8SEvgeniy Ivanov }
5557f2d47d8SEvgeniy Ivanov
5567f2d47d8SEvgeniy Ivanov extern struct in_addr zeroin_addr;
5577f2d47d8SEvgeniy Ivanov extern u_char ip_protox[];
5587f2d47d8SEvgeniy Ivanov extern const struct sockaddr_in in_any;
5597f2d47d8SEvgeniy Ivanov
5607f2d47d8SEvgeniy Ivanov int in_broadcast(struct in_addr, struct ifnet *);
5617f2d47d8SEvgeniy Ivanov int in_canforward(struct in_addr);
5627f2d47d8SEvgeniy Ivanov int cpu_in_cksum(struct mbuf *, int, int, uint32_t);
5637f2d47d8SEvgeniy Ivanov int in_cksum(struct mbuf *, int);
5647f2d47d8SEvgeniy Ivanov int in4_cksum(struct mbuf *, u_int8_t, int, int);
5657f2d47d8SEvgeniy Ivanov void in_delayed_cksum(struct mbuf *);
5667f2d47d8SEvgeniy Ivanov int in_localaddr(struct in_addr);
5677f2d47d8SEvgeniy Ivanov void in_socktrim(struct sockaddr_in *);
5687f2d47d8SEvgeniy Ivanov
569*0a6a1f1dSLionel Sambuc void in_if_link_up(struct ifnet *);
570*0a6a1f1dSLionel Sambuc void in_if_link_down(struct ifnet *);
571*0a6a1f1dSLionel Sambuc void in_if_up(struct ifnet *);
572*0a6a1f1dSLionel Sambuc void in_if_down(struct ifnet *);
573*0a6a1f1dSLionel Sambuc void in_if_link_state_change(struct ifnet *, int);
574*0a6a1f1dSLionel Sambuc
575*0a6a1f1dSLionel Sambuc struct route;
576*0a6a1f1dSLionel Sambuc struct ip_moptions;
577*0a6a1f1dSLionel Sambuc
578*0a6a1f1dSLionel Sambuc struct sockaddr_in *in_selectsrc(struct sockaddr_in *,
579*0a6a1f1dSLionel Sambuc struct route *, int, struct ip_moptions *, int *);
580*0a6a1f1dSLionel Sambuc
5817f2d47d8SEvgeniy Ivanov #define in_hosteq(s,t) ((s).s_addr == (t).s_addr)
5827f2d47d8SEvgeniy Ivanov #define in_nullhost(x) ((x).s_addr == INADDR_ANY)
5837f2d47d8SEvgeniy Ivanov
5847f2d47d8SEvgeniy Ivanov #define satosin(sa) ((struct sockaddr_in *)(sa))
5857f2d47d8SEvgeniy Ivanov #define satocsin(sa) ((const struct sockaddr_in *)(sa))
5867f2d47d8SEvgeniy Ivanov #define sintosa(sin) ((struct sockaddr *)(sin))
5877f2d47d8SEvgeniy Ivanov #define sintocsa(sin) ((const struct sockaddr *)(sin))
5887f2d47d8SEvgeniy Ivanov #define ifatoia(ifa) ((struct in_ifaddr *)(ifa))
5897f2d47d8SEvgeniy Ivanov
5907f2d47d8SEvgeniy Ivanov int sockaddr_in_cmp(const struct sockaddr *, const struct sockaddr *);
5917f2d47d8SEvgeniy Ivanov const void *sockaddr_in_const_addr(const struct sockaddr *, socklen_t *);
5927f2d47d8SEvgeniy Ivanov void *sockaddr_in_addr(struct sockaddr *, socklen_t *);
5937f2d47d8SEvgeniy Ivanov
5947f2d47d8SEvgeniy Ivanov static inline void
sockaddr_in_init1(struct sockaddr_in * sin,const struct in_addr * addr,in_port_t port)5957f2d47d8SEvgeniy Ivanov sockaddr_in_init1(struct sockaddr_in *sin, const struct in_addr *addr,
5967f2d47d8SEvgeniy Ivanov in_port_t port)
5977f2d47d8SEvgeniy Ivanov {
5987f2d47d8SEvgeniy Ivanov sin->sin_port = port;
5997f2d47d8SEvgeniy Ivanov sin->sin_addr = *addr;
6007f2d47d8SEvgeniy Ivanov memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
6017f2d47d8SEvgeniy Ivanov }
6027f2d47d8SEvgeniy Ivanov
6037f2d47d8SEvgeniy Ivanov static inline void
sockaddr_in_init(struct sockaddr_in * sin,const struct in_addr * addr,in_port_t port)6047f2d47d8SEvgeniy Ivanov sockaddr_in_init(struct sockaddr_in *sin, const struct in_addr *addr,
6057f2d47d8SEvgeniy Ivanov in_port_t port)
6067f2d47d8SEvgeniy Ivanov {
6077f2d47d8SEvgeniy Ivanov sin->sin_family = AF_INET;
6087f2d47d8SEvgeniy Ivanov sin->sin_len = sizeof(*sin);
6097f2d47d8SEvgeniy Ivanov sockaddr_in_init1(sin, addr, port);
6107f2d47d8SEvgeniy Ivanov }
6117f2d47d8SEvgeniy Ivanov
6127f2d47d8SEvgeniy Ivanov static inline struct sockaddr *
sockaddr_in_alloc(const struct in_addr * addr,in_port_t port,int flags)6137f2d47d8SEvgeniy Ivanov sockaddr_in_alloc(const struct in_addr *addr, in_port_t port, int flags)
6147f2d47d8SEvgeniy Ivanov {
6157f2d47d8SEvgeniy Ivanov struct sockaddr *sa;
6167f2d47d8SEvgeniy Ivanov
6177f2d47d8SEvgeniy Ivanov sa = sockaddr_alloc(AF_INET, sizeof(struct sockaddr_in), flags);
6187f2d47d8SEvgeniy Ivanov
6197f2d47d8SEvgeniy Ivanov if (sa == NULL)
6207f2d47d8SEvgeniy Ivanov return NULL;
6217f2d47d8SEvgeniy Ivanov
6227f2d47d8SEvgeniy Ivanov sockaddr_in_init1(satosin(sa), addr, port);
6237f2d47d8SEvgeniy Ivanov
6247f2d47d8SEvgeniy Ivanov return sa;
6257f2d47d8SEvgeniy Ivanov }
6267f2d47d8SEvgeniy Ivanov #endif /* _KERNEL */
6277f2d47d8SEvgeniy Ivanov
628*0a6a1f1dSLionel Sambuc #if defined(_KERNEL) || defined(_TEST)
629*0a6a1f1dSLionel Sambuc int in_print(char *, size_t, const struct in_addr *);
630*0a6a1f1dSLionel Sambuc #define IN_PRINT(b, a) (in_print((b), sizeof(b), a), (b))
631*0a6a1f1dSLionel Sambuc int sin_print(char *, size_t, const void *);
632*0a6a1f1dSLionel Sambuc #endif
633*0a6a1f1dSLionel Sambuc
6347f2d47d8SEvgeniy Ivanov #endif /* !_NETINET_IN_H_ */
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