in.h revision 170613
1139823Simp/*- 21541Srgrimes * Copyright (c) 1982, 1986, 1990, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 4. Neither the name of the University nor the names of its contributors 141541Srgrimes * may be used to endorse or promote products derived from this software 151541Srgrimes * without specific prior written permission. 161541Srgrimes * 171541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271541Srgrimes * SUCH DAMAGE. 281541Srgrimes * 291541Srgrimes * @(#)in.h 8.3 (Berkeley) 1/3/94 3050477Speter * $FreeBSD: head/sys/netinet/in.h 170613 2007-06-12 16:24:56Z bms $ 311541Srgrimes */ 321541Srgrimes 332169Spaul#ifndef _NETINET_IN_H_ 34121498Sume#define _NETINET_IN_H_ 352169Spaul 3695336Smike#include <sys/cdefs.h> 3793514Smike#include <sys/_types.h> 3895336Smike#include <machine/endian.h> 3993514Smike 4095336Smike/* Protocols common to RFC 1700, POSIX, and X/Open. */ 4195336Smike#define IPPROTO_IP 0 /* dummy for IP */ 4295336Smike#define IPPROTO_ICMP 1 /* control message protocol */ 4395336Smike#define IPPROTO_TCP 6 /* tcp */ 4495336Smike#define IPPROTO_UDP 17 /* user datagram protocol */ 4595336Smike 4695336Smike#define INADDR_ANY (u_int32_t)0x00000000 4795336Smike#define INADDR_BROADCAST (u_int32_t)0xffffffff /* must be masked */ 4895336Smike 4995336Smike#ifndef _UINT8_T_DECLARED 5095336Smiketypedef __uint8_t uint8_t; 5195336Smike#define _UINT8_T_DECLARED 5295336Smike#endif 5395336Smike 5495336Smike#ifndef _UINT16_T_DECLARED 5595336Smiketypedef __uint16_t uint16_t; 5695336Smike#define _UINT16_T_DECLARED 5795336Smike#endif 5895336Smike 5995336Smike#ifndef _UINT32_T_DECLARED 6095336Smiketypedef __uint32_t uint32_t; 6195336Smike#define _UINT32_T_DECLARED 6295336Smike#endif 6395336Smike 6495336Smike#ifndef _IN_ADDR_T_DECLARED 6595336Smiketypedef uint32_t in_addr_t; 6695336Smike#define _IN_ADDR_T_DECLARED 6795336Smike#endif 6895336Smike 6995336Smike#ifndef _IN_PORT_T_DECLARED 7095336Smiketypedef uint16_t in_port_t; 7195336Smike#define _IN_PORT_T_DECLARED 7295336Smike#endif 7395336Smike 74102227Smike#ifndef _SA_FAMILY_T_DECLARED 75102227Smiketypedef __sa_family_t sa_family_t; 76102227Smike#define _SA_FAMILY_T_DECLARED 7795336Smike#endif 7895336Smike 7995336Smike/* Internet address (a structure for historical reasons). */ 8095336Smike#ifndef _STRUCT_IN_ADDR_DECLARED 8195336Smikestruct in_addr { 8295336Smike in_addr_t s_addr; 8395336Smike}; 8495336Smike#define _STRUCT_IN_ADDR_DECLARED 8595336Smike#endif 8695336Smike 87170613Sbms#ifndef _SOCKLEN_T_DECLARED 88170613Sbmstypedef __socklen_t socklen_t; 89170613Sbms#define _SOCKLEN_T_DECLARED 90170613Sbms#endif 91170613Sbms 92170613Sbms/* Avoid collision with original definition in sys/socket.h. */ 93170613Sbms#ifndef _STRUCT_SOCKADDR_STORAGE_DECLARED 94170613Sbms/* 95170613Sbms * RFC 2553: protocol-independent placeholder for socket addresses 96170613Sbms */ 97170613Sbms#define _SS_MAXSIZE 128U 98170613Sbms#define _SS_ALIGNSIZE (sizeof(__int64_t)) 99170613Sbms#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(unsigned char) - \ 100170613Sbms sizeof(sa_family_t)) 101170613Sbms#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(unsigned char) - \ 102170613Sbms sizeof(sa_family_t) - _SS_PAD1SIZE - _SS_ALIGNSIZE) 103170613Sbms 104170613Sbmsstruct sockaddr_storage { 105170613Sbms unsigned char ss_len; /* address length */ 106170613Sbms sa_family_t ss_family; /* address family */ 107170613Sbms char __ss_pad1[_SS_PAD1SIZE]; 108170613Sbms __int64_t __ss_align; /* force desired struct alignment */ 109170613Sbms char __ss_pad2[_SS_PAD2SIZE]; 110170613Sbms}; 111170613Sbms#define _STRUCT_SOCKADDR_STORAGE_DECLARED 112170613Sbms#endif 113170613Sbms 11495336Smike/* Socket address, internet style. */ 11595336Smikestruct sockaddr_in { 11695336Smike uint8_t sin_len; 11795336Smike sa_family_t sin_family; 11895336Smike in_port_t sin_port; 11995336Smike struct in_addr sin_addr; 12095336Smike char sin_zero[8]; 12195336Smike}; 12295336Smike 12395336Smike#ifndef _KERNEL 12495336Smike 12595336Smike#ifndef _BYTEORDER_PROTOTYPED 12695336Smike#define _BYTEORDER_PROTOTYPED 12795336Smike__BEGIN_DECLS 12895336Smikeuint32_t htonl(uint32_t); 12995336Smikeuint16_t htons(uint16_t); 13095336Smikeuint32_t ntohl(uint32_t); 13195336Smikeuint16_t ntohs(uint16_t); 13295336Smike__END_DECLS 13395336Smike#endif 13495336Smike 13595336Smike#ifndef _BYTEORDER_FUNC_DEFINED 13695336Smike#define _BYTEORDER_FUNC_DEFINED 13795336Smike#define htonl(x) __htonl(x) 13895336Smike#define htons(x) __htons(x) 13995336Smike#define ntohl(x) __ntohl(x) 14095336Smike#define ntohs(x) __ntohs(x) 14195336Smike#endif 14295336Smike 14395336Smike#endif /* !_KERNEL */ 14495336Smike 14595336Smike#if __POSIX_VISIBLE >= 200112 14695336Smike#define IPPROTO_RAW 255 /* raw IP packet */ 14795336Smike#define INET_ADDRSTRLEN 16 14895336Smike#endif 14995336Smike 15095336Smike#if __BSD_VISIBLE 1511541Srgrimes/* 1521541Srgrimes * Constants and structures defined by the internet system, 1531541Srgrimes * Per RFC 790, September 1981, and numerous additions. 1541541Srgrimes */ 1551541Srgrimes 1561541Srgrimes/* 15733804Sjulian * Protocols (RFC 1700) 1581541Srgrimes */ 15952904Sshin#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ 1601541Srgrimes#define IPPROTO_IGMP 2 /* group mgmt protocol */ 1611541Srgrimes#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 162133874Srwatson#define IPPROTO_IPV4 4 /* IPv4 encapsulation */ 163133874Srwatson#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */ 16433804Sjulian#define IPPROTO_ST 7 /* Stream protocol II */ 1651541Srgrimes#define IPPROTO_EGP 8 /* exterior gateway protocol */ 16633804Sjulian#define IPPROTO_PIGP 9 /* private interior gateway */ 16733804Sjulian#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */ 16833804Sjulian#define IPPROTO_NVPII 11 /* network voice protocol*/ 1691541Srgrimes#define IPPROTO_PUP 12 /* pup */ 17033804Sjulian#define IPPROTO_ARGUS 13 /* Argus */ 17133804Sjulian#define IPPROTO_EMCON 14 /* EMCON */ 17233804Sjulian#define IPPROTO_XNET 15 /* Cross Net Debugger */ 17333804Sjulian#define IPPROTO_CHAOS 16 /* Chaos*/ 17433804Sjulian#define IPPROTO_MUX 18 /* Multiplexing */ 17533804Sjulian#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */ 17633804Sjulian#define IPPROTO_HMP 20 /* Host Monitoring */ 17733804Sjulian#define IPPROTO_PRM 21 /* Packet Radio Measurement */ 1781541Srgrimes#define IPPROTO_IDP 22 /* xns idp */ 17933804Sjulian#define IPPROTO_TRUNK1 23 /* Trunk-1 */ 18033804Sjulian#define IPPROTO_TRUNK2 24 /* Trunk-2 */ 18133804Sjulian#define IPPROTO_LEAF1 25 /* Leaf-1 */ 18233804Sjulian#define IPPROTO_LEAF2 26 /* Leaf-2 */ 18333804Sjulian#define IPPROTO_RDP 27 /* Reliable Data */ 18433804Sjulian#define IPPROTO_IRTP 28 /* Reliable Transaction */ 185133874Srwatson#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 18633804Sjulian#define IPPROTO_BLT 30 /* Bulk Data Transfer */ 18733804Sjulian#define IPPROTO_NSP 31 /* Network Services */ 18833804Sjulian#define IPPROTO_INP 32 /* Merit Internodal */ 18933804Sjulian#define IPPROTO_SEP 33 /* Sequential Exchange */ 19033804Sjulian#define IPPROTO_3PC 34 /* Third Party Connect */ 19133804Sjulian#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */ 19233804Sjulian#define IPPROTO_XTP 36 /* XTP */ 19333804Sjulian#define IPPROTO_DDP 37 /* Datagram Delivery */ 19433804Sjulian#define IPPROTO_CMTP 38 /* Control Message Transport */ 19533804Sjulian#define IPPROTO_TPXX 39 /* TP++ Transport */ 19633804Sjulian#define IPPROTO_IL 40 /* IL transport protocol */ 19752904Sshin#define IPPROTO_IPV6 41 /* IP6 header */ 19833804Sjulian#define IPPROTO_SDRP 42 /* Source Demand Routing */ 19952904Sshin#define IPPROTO_ROUTING 43 /* IP6 routing header */ 20052904Sshin#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */ 20133804Sjulian#define IPPROTO_IDRP 45 /* InterDomain Routing*/ 202133874Srwatson#define IPPROTO_RSVP 46 /* resource reservation */ 20333804Sjulian#define IPPROTO_GRE 47 /* General Routing Encap. */ 20433804Sjulian#define IPPROTO_MHRP 48 /* Mobile Host Routing */ 20533804Sjulian#define IPPROTO_BHA 49 /* BHA */ 20652904Sshin#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */ 20752904Sshin#define IPPROTO_AH 51 /* IP6 Auth Header */ 20833804Sjulian#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */ 20933804Sjulian#define IPPROTO_SWIPE 53 /* IP with encryption */ 21033804Sjulian#define IPPROTO_NHRP 54 /* Next Hop Resolution */ 211133874Srwatson#define IPPROTO_MOBILE 55 /* IP Mobility */ 212133874Srwatson#define IPPROTO_TLSP 56 /* Transport Layer Security */ 213133874Srwatson#define IPPROTO_SKIP 57 /* SKIP */ 21452904Sshin#define IPPROTO_ICMPV6 58 /* ICMP6 */ 21552904Sshin#define IPPROTO_NONE 59 /* IP6 no next header */ 21652904Sshin#define IPPROTO_DSTOPTS 60 /* IP6 destination option */ 21733804Sjulian#define IPPROTO_AHIP 61 /* any host internal protocol */ 21833804Sjulian#define IPPROTO_CFTP 62 /* CFTP */ 21933804Sjulian#define IPPROTO_HELLO 63 /* "hello" routing protocol */ 22033804Sjulian#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */ 22133804Sjulian#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */ 22233804Sjulian#define IPPROTO_RVD 66 /* Remote Virtual Disk */ 22333804Sjulian#define IPPROTO_IPPC 67 /* Pluribus Packet Core */ 22433804Sjulian#define IPPROTO_ADFS 68 /* Any distributed FS */ 22533804Sjulian#define IPPROTO_SATMON 69 /* Satnet Monitoring */ 22633804Sjulian#define IPPROTO_VISA 70 /* VISA Protocol */ 22733804Sjulian#define IPPROTO_IPCV 71 /* Packet Core Utility */ 22833804Sjulian#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */ 22933804Sjulian#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */ 23033804Sjulian#define IPPROTO_WSN 74 /* Wang Span Network */ 23133804Sjulian#define IPPROTO_PVP 75 /* Packet Video Protocol */ 23233804Sjulian#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */ 23333804Sjulian#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */ 23433804Sjulian#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */ 23533804Sjulian#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */ 2361541Srgrimes#define IPPROTO_EON 80 /* ISO cnlp */ 23733804Sjulian#define IPPROTO_VMTP 81 /* VMTP */ 23833804Sjulian#define IPPROTO_SVMTP 82 /* Secure VMTP */ 23933804Sjulian#define IPPROTO_VINES 83 /* Banyon VINES */ 24033804Sjulian#define IPPROTO_TTP 84 /* TTP */ 24133804Sjulian#define IPPROTO_IGP 85 /* NSFNET-IGP */ 24233804Sjulian#define IPPROTO_DGP 86 /* dissimilar gateway prot. */ 24333814Sjulian#define IPPROTO_TCF 87 /* TCF */ 24433804Sjulian#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */ 24533804Sjulian#define IPPROTO_OSPFIGP 89 /* OSPFIGP */ 24633804Sjulian#define IPPROTO_SRPC 90 /* Strite RPC protocol */ 24733804Sjulian#define IPPROTO_LARP 91 /* Locus Address Resoloution */ 24833804Sjulian#define IPPROTO_MTP 92 /* Multicast Transport */ 24933804Sjulian#define IPPROTO_AX25 93 /* AX.25 Frames */ 25033804Sjulian#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */ 25133804Sjulian#define IPPROTO_MICP 95 /* Mobile Int.ing control */ 25233804Sjulian#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */ 25333804Sjulian#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */ 2541541Srgrimes#define IPPROTO_ENCAP 98 /* encapsulation header */ 25533804Sjulian#define IPPROTO_APES 99 /* any private encr. scheme */ 25633804Sjulian#define IPPROTO_GMTP 100 /* GMTP*/ 25752904Sshin#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */ 258153553Sdelphij#define IPPROTO_SCTP 132 /* SCTP */ 25946420Sluigi/* 101-254: Partly Unassigned */ 26052904Sshin#define IPPROTO_PIM 103 /* Protocol Independent Mcast */ 261142215Sglebius#define IPPROTO_CARP 112 /* CARP */ 26246420Sluigi#define IPPROTO_PGM 113 /* PGM */ 263130609Smlaier#define IPPROTO_PFSYNC 240 /* PFSYNC */ 26433804Sjulian/* 255: Reserved */ 265106152Sfenner/* BSD Private, local use, namespace incursion, no longer used */ 266106152Sfenner#define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */ 2671541Srgrimes#define IPPROTO_MAX 256 2681541Srgrimes 26952904Sshin/* last return value of *_input(), meaning "all job for this pkt is done". */ 27052904Sshin#define IPPROTO_DONE 257 2711541Srgrimes 272106152Sfenner/* Only used internally, so can be outside the range of valid IP protocols. */ 273106152Sfenner#define IPPROTO_DIVERT 258 /* divert pseudo-protocol */ 274106152Sfenner 2751541Srgrimes/* 276136712Sandre * Defined to avoid confusion. The master value is defined by 277136712Sandre * PROTO_SPACER in sys/protosw.h. 278136712Sandre */ 279136712Sandre#define IPPROTO_SPACER 32767 /* spacer for loadable protos */ 280136712Sandre 281136712Sandre/* 2821541Srgrimes * Local port number conventions: 28314195Speter * 28414195Speter * When a user does a bind(2) or connect(2) with a port number of zero, 28514195Speter * a non-conflicting local port address is chosen. 28694291Ssilby * The default range is IPPORT_HIFIRSTAUTO through 28794291Ssilby * IPPORT_HILASTAUTO, although that is settable by sysctl. 28814195Speter * 28914195Speter * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 29014195Speter * default assignment range. 29114195Speter * 29214195Speter * The value IP_PORTRANGE_DEFAULT causes the default behavior. 29314195Speter * 29414195Speter * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 29514195Speter * into the "high" range. These are reserved for client outbound connections 29694291Ssilby * which do not want to be filtered by any firewalls. Note that by default 29794291Ssilby * this is the same as IP_PORTRANGE_DEFAULT. 29814195Speter * 29914195Speter * The value IP_PORTRANGE_LOW changes the range to the "low" are 30014195Speter * that is (by convention) restricted to privileged processes. This 30114195Speter * convention is based on "vouchsafe" principles only. It is only secure 30214195Speter * if you trust the remote host to restrict these ports. 30314195Speter * 30414195Speter * The default range of ports and the high range can be changed by 30517541Speter * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto) 30614195Speter * 30714195Speter * Changing those values has bad security implications if you are 308108533Sschweikh * using a stateless firewall that is allowing packets outside of that 30914195Speter * range in order to allow transparent outgoing connections. 31014195Speter * 31114195Speter * Such a firewall configuration will generally depend on the use of these 31214195Speter * default values. If you change them, you may find your Security 31314195Speter * Administrator looking for you with a heavy object. 31435304Sphk * 31535304Sphk * For a slightly more orthodox text view on this: 31635304Sphk * 31735304Sphk * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers 31835304Sphk * 31935304Sphk * port numbers are divided into three ranges: 32035304Sphk * 32135304Sphk * 0 - 1023 Well Known Ports 32235304Sphk * 1024 - 49151 Registered Ports 32335304Sphk * 49152 - 65535 Dynamic and/or Private Ports 32435304Sphk * 32514195Speter */ 32614195Speter 32714195Speter/* 3281541Srgrimes * Ports < IPPORT_RESERVED are reserved for 32914195Speter * privileged processes (e.g. root). (IP_PORTRANGE_LOW) 3301541Srgrimes */ 3311541Srgrimes#define IPPORT_RESERVED 1024 3321541Srgrimes 3331541Srgrimes/* 33494379Ssilby * Default local port range, used by both IP_PORTRANGE_DEFAULT 33594379Ssilby * and IP_PORTRANGE_HIGH. 33613491Speter */ 33735304Sphk#define IPPORT_HIFIRSTAUTO 49152 33835304Sphk#define IPPORT_HILASTAUTO 65535 33913491Speter 34013491Speter/* 34117541Speter * Scanning for a free reserved port return a value below IPPORT_RESERVED, 34217541Speter * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was 34317541Speter * 512, but that conflicts with some well-known-services that firewalls may 34417541Speter * have a fit if we use. 34517541Speter */ 346133874Srwatson#define IPPORT_RESERVEDSTART 600 34717541Speter 34887158Smike#define IPPORT_MAX 65535 34987158Smike 35017541Speter/* 3511541Srgrimes * Definitions of bits in internet address integers. 3521541Srgrimes * On subnets, the decomposition of addresses to host and net parts 3531541Srgrimes * is done according to subnet mask, not the masks here. 3541541Srgrimes */ 35535919Sjb#define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0) 3561541Srgrimes#define IN_CLASSA_NET 0xff000000 3571541Srgrimes#define IN_CLASSA_NSHIFT 24 3581541Srgrimes#define IN_CLASSA_HOST 0x00ffffff 3591541Srgrimes#define IN_CLASSA_MAX 128 3601541Srgrimes 36135919Sjb#define IN_CLASSB(i) (((u_int32_t)(i) & 0xc0000000) == 0x80000000) 3621541Srgrimes#define IN_CLASSB_NET 0xffff0000 3631541Srgrimes#define IN_CLASSB_NSHIFT 16 3641541Srgrimes#define IN_CLASSB_HOST 0x0000ffff 3651541Srgrimes#define IN_CLASSB_MAX 65536 3661541Srgrimes 36735919Sjb#define IN_CLASSC(i) (((u_int32_t)(i) & 0xe0000000) == 0xc0000000) 3681541Srgrimes#define IN_CLASSC_NET 0xffffff00 3691541Srgrimes#define IN_CLASSC_NSHIFT 8 3701541Srgrimes#define IN_CLASSC_HOST 0x000000ff 3711541Srgrimes 37235919Sjb#define IN_CLASSD(i) (((u_int32_t)(i) & 0xf0000000) == 0xe0000000) 3731541Srgrimes#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ 3741541Srgrimes#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ 3751541Srgrimes#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ 3761541Srgrimes#define IN_MULTICAST(i) IN_CLASSD(i) 3771541Srgrimes 37835919Sjb#define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) 37935919Sjb#define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) 3801541Srgrimes 381166368Sbms#define IN_LINKLOCAL(i) (((u_int32_t)(i) & 0xffff0000) == 0xa9fe0000) 382166368Sbms 383166368Sbms#define IN_PRIVATE(i) ((((u_int32_t)(i) & 0xff000000) == 0x0a000000) || \ 384166368Sbms (((u_int32_t)(i) & 0xfff00000) == 0xac100000) || \ 385166368Sbms (((u_int32_t)(i) & 0xffff0000) == 0xc0a80000)) 386166368Sbms 387166368Sbms#define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & 0xffffff00) == 0xe0000000) 388166368Sbms 389166368Sbms#define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i)) 390166368Sbms 39135919Sjb#define INADDR_LOOPBACK (u_int32_t)0x7f000001 39255205Speter#ifndef _KERNEL 3931541Srgrimes#define INADDR_NONE 0xffffffff /* -1 return */ 3941541Srgrimes#endif 3951541Srgrimes 39635919Sjb#define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */ 39735919Sjb#define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */ 39835919Sjb#define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */ 399167072Sbms#define INADDR_ALLRPTS_GROUP (u_int32_t)0xe0000016 /* 224.0.0.22, IGMPv3 */ 400142215Sglebius#define INADDR_CARP_GROUP (u_int32_t)0xe0000012 /* 224.0.0.18 */ 401130609Smlaier#define INADDR_PFSYNC_GROUP (u_int32_t)0xe00000f0 /* 224.0.0.240 */ 402114259Smdodd#define INADDR_ALLMDNS_GROUP (u_int32_t)0xe00000fb /* 224.0.0.251 */ 40335919Sjb#define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */ 4041541Srgrimes 4051541Srgrimes#define IN_LOOPBACKNET 127 /* official! */ 4061541Srgrimes 4071541Srgrimes/* 4081541Srgrimes * Options for use with [gs]etsockopt at the IP level. 4091541Srgrimes * First word of comment is data type; bool is stored in int. 4101541Srgrimes */ 4111541Srgrimes#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 4121541Srgrimes#define IP_HDRINCL 2 /* int; header is included with data */ 4131541Srgrimes#define IP_TOS 3 /* int; IP type of service and preced. */ 4141541Srgrimes#define IP_TTL 4 /* int; IP time to live */ 4151541Srgrimes#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 4161541Srgrimes#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 4171541Srgrimes#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 418105651Siedowse#define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */ 4191541Srgrimes#define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 420170613Sbms#define IP_MULTICAST_IF 9 /* struct in_addr *or* struct ip_mreqn; 421170613Sbms * set/get IP multicast i/f */ 4221541Srgrimes#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 4231541Srgrimes#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 4241541Srgrimes#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 4251541Srgrimes#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 426133874Srwatson#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */ 427133874Srwatson#define IP_RSVP_ON 15 /* enable RSVP in kernel */ 428133874Srwatson#define IP_RSVP_OFF 16 /* disable RSVP in kernel */ 429133874Srwatson#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ 430133874Srwatson#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ 431133874Srwatson#define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 43219622Sfenner#define IP_RECVIF 20 /* bool; receive reception if w/dgram */ 43352904Sshin/* for IPSEC */ 43452904Sshin#define IP_IPSEC_POLICY 21 /* int; set/get security policy */ 43552904Sshin#define IP_FAITH 22 /* bool; accept FAITH'ed connections */ 4361541Srgrimes 437119178Sbms#define IP_ONESBCAST 23 /* bool: send all-ones broadcast */ 438119178Sbms 439130281Sru#define IP_FW_TABLE_ADD 40 /* add entry */ 440130281Sru#define IP_FW_TABLE_DEL 41 /* delete entry */ 441130281Sru#define IP_FW_TABLE_FLUSH 42 /* flush table */ 442130281Sru#define IP_FW_TABLE_GETSIZE 43 /* get table size */ 443130281Sru#define IP_FW_TABLE_LIST 44 /* list table contents */ 444130281Sru 445133874Srwatson#define IP_FW_ADD 50 /* add a firewall rule to chain */ 446133874Srwatson#define IP_FW_DEL 51 /* delete a firewall rule from chain */ 447133874Srwatson#define IP_FW_FLUSH 52 /* flush firewall rule chain */ 448133874Srwatson#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */ 449133874Srwatson#define IP_FW_GET 54 /* get entire firewall rule chain */ 45052904Sshin#define IP_FW_RESETLOG 55 /* reset logging counters */ 45117758Ssos 452165648Spiso#define IP_FW_NAT_CFG 56 /* add/config a nat rule */ 453165648Spiso#define IP_FW_NAT_DEL 57 /* delete a nat rule */ 454165648Spiso#define IP_FW_NAT_GET_CONFIG 58 /* get configuration of a nat rule */ 455165648Spiso#define IP_FW_NAT_GET_LOG 59 /* get log of a nat rule */ 456165648Spiso 45741793Sluigi#define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */ 45841793Sluigi#define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */ 45941793Sluigi#define IP_DUMMYNET_FLUSH 62 /* flush dummynet */ 46041793Sluigi#define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */ 46141793Sluigi 462114258Smdodd#define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */ 463149371Sandre#define IP_MINTTL 66 /* minimum TTL for packet or drop */ 464150594Sandre#define IP_DONTFRAG 67 /* don't fragment packet */ 465114258Smdodd 466170613Sbms/* IPv4 Source Filter Multicast API [RFC3678] */ 467170613Sbms#define IP_ADD_SOURCE_MEMBERSHIP 70 /* join a source-specific group */ 468170613Sbms#define IP_DROP_SOURCE_MEMBERSHIP 71 /* drop a single source */ 469170613Sbms#define IP_BLOCK_SOURCE 72 /* block a source */ 470170613Sbms#define IP_UNBLOCK_SOURCE 73 /* unblock a source */ 471170613Sbms 472170613Sbms/* The following option is private; do not use it from user applications. */ 473170613Sbms#define IP_MSFILTER 74 /* set/get filter list */ 474170613Sbms 475170613Sbms/* Protocol Independent Multicast API [RFC3678] */ 476170613Sbms#define MCAST_JOIN_GROUP 80 /* join an any-source group */ 477170613Sbms#define MCAST_LEAVE_GROUP 81 /* leave all sources for group */ 478170613Sbms#define MCAST_JOIN_SOURCE_GROUP 82 /* join a source-specific group */ 479170613Sbms#define MCAST_LEAVE_SOURCE_GROUP 83 /* leave a single source */ 480170613Sbms#define MCAST_BLOCK_SOURCE 84 /* block a source */ 481170613Sbms#define MCAST_UNBLOCK_SOURCE 85 /* unblock a source */ 482170613Sbms 4831541Srgrimes/* 4841541Srgrimes * Defaults and limits for options 4851541Srgrimes */ 4861541Srgrimes#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 4871541Srgrimes#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 4881541Srgrimes 4891541Srgrimes/* 490158563Sbms * The imo_membership vector for each socket is now dynamically allocated at 491158563Sbms * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 492158563Sbms * according to a power-of-two increment. 493158563Sbms */ 494158563Sbms#define IP_MIN_MEMBERSHIPS 31 495158563Sbms#define IP_MAX_MEMBERSHIPS 4095 496170613Sbms#define IP_MAX_SOURCE_FILTER 1024 /* # of filters per socket, per group */ 497158563Sbms 498158563Sbms/* 4991541Srgrimes * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 5001541Srgrimes */ 5011541Srgrimesstruct ip_mreq { 5021541Srgrimes struct in_addr imr_multiaddr; /* IP multicast address of group */ 5031541Srgrimes struct in_addr imr_interface; /* local IP address of interface */ 5041541Srgrimes}; 5051541Srgrimes 5061541Srgrimes/* 507170613Sbms * Modified argument structure for IP_MULTICAST_IF, obtained from Linux. 508170613Sbms * This is used to specify an interface index for multicast sends, as 509170613Sbms * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available). 510170613Sbms */ 511170613Sbmsstruct ip_mreqn { 512170613Sbms struct in_addr imr_multiaddr; /* IP multicast address of group */ 513170613Sbms struct in_addr imr_address; /* local IP address of interface */ 514170613Sbms int imr_ifindex; /* Interface index; cast to uint32_t */ 515170613Sbms}; 516170613Sbms 517170613Sbms/* 518170613Sbms * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678] 519170613Sbms */ 520170613Sbmsstruct ip_mreq_source { 521170613Sbms struct in_addr imr_multiaddr; /* IP multicast address of group */ 522170613Sbms struct in_addr imr_sourceaddr; /* IP address of source */ 523170613Sbms struct in_addr imr_interface; /* local IP address of interface */ 524170613Sbms}; 525170613Sbms 526170613Sbms/* 527170613Sbms * Argument structures for Protocol-Independent Multicast Source 528170613Sbms * Filter APIs. [RFC3678] 529170613Sbms */ 530170613Sbmsstruct group_req { 531170613Sbms uint32_t gr_interface; /* interface index */ 532170613Sbms struct sockaddr_storage gr_group; /* group address */ 533170613Sbms}; 534170613Sbms 535170613Sbmsstruct group_source_req { 536170613Sbms uint32_t gsr_interface; /* interface index */ 537170613Sbms struct sockaddr_storage gsr_group; /* group address */ 538170613Sbms struct sockaddr_storage gsr_source; /* source address */ 539170613Sbms}; 540170613Sbms 541170613Sbms#ifndef __MSFILTERREQ_DEFINED 542170613Sbms#define __MSFILTERREQ_DEFINED 543170613Sbms/* 544170613Sbms * The following structure is private; do not use it from user applications. 545170613Sbms * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between 546170613Sbms * the RFC 3678 libc functions and the kernel. 547170613Sbms */ 548170613Sbmsstruct __msfilterreq { 549170613Sbms uint32_t msfr_ifindex; /* interface index */ 550170613Sbms uint32_t msfr_fmode; /* filter mode for group */ 551170613Sbms uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ 552170613Sbms struct sockaddr_storage msfr_group; /* group address */ 553170613Sbms struct sockaddr_storage *msfr_srcs; /* pointer to the first member 554170613Sbms * of a contiguous array of 555170613Sbms * sources to filter in full. 556170613Sbms */ 557170613Sbms}; 558170613Sbms#endif 559170613Sbms 560170613Sbmsstruct sockaddr; 561170613Sbms 562170613Sbms/* 563170613Sbms * Advanced (Full-state) APIs [RFC3678] 564170613Sbms * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter(). 565170613Sbms * We use uint32_t here to be consistent. 566170613Sbms */ 567170613Sbmsint setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t, 568170613Sbms uint32_t, struct in_addr *); 569170613Sbmsint getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *, 570170613Sbms uint32_t *, struct in_addr *); 571170613Sbmsint setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, 572170613Sbms uint32_t, uint32_t, struct sockaddr_storage *); 573170613Sbmsint getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, 574170613Sbms uint32_t *, uint32_t *, struct sockaddr_storage *); 575170613Sbms 576170613Sbms/* 577170613Sbms * Filter modes; also used to represent per-socket filter mode internally. 578170613Sbms */ 579170613Sbms#define MCAST_INCLUDE 1 /* fmode: include these source(s) */ 580170613Sbms#define MCAST_EXCLUDE 2 /* fmode: exclude these source(s) */ 581170613Sbms 582170613Sbms/* 58314195Speter * Argument for IP_PORTRANGE: 58414195Speter * - which range to search when port is unspecified at bind() or connect() 58514195Speter */ 58614195Speter#define IP_PORTRANGE_DEFAULT 0 /* default range */ 58714195Speter#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 58814195Speter#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 58914195Speter 59014195Speter/* 5911541Srgrimes * Definitions for inet sysctl operations. 5921541Srgrimes * 5931541Srgrimes * Third level is protocol number. 5941541Srgrimes * Fourth level is desired variable within that protocol. 5951541Srgrimes */ 59662587Sitojun#define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */ 5971541Srgrimes 5981541Srgrimes#define CTL_IPPROTO_NAMES { \ 5991541Srgrimes { "ip", CTLTYPE_NODE }, \ 6001541Srgrimes { "icmp", CTLTYPE_NODE }, \ 6011541Srgrimes { "igmp", CTLTYPE_NODE }, \ 6021541Srgrimes { "ggp", CTLTYPE_NODE }, \ 6031541Srgrimes { 0, 0 }, \ 6041541Srgrimes { 0, 0 }, \ 6051541Srgrimes { "tcp", CTLTYPE_NODE }, \ 6061541Srgrimes { 0, 0 }, \ 6071541Srgrimes { "egp", CTLTYPE_NODE }, \ 6081541Srgrimes { 0, 0 }, \ 6091541Srgrimes { 0, 0 }, \ 6101541Srgrimes { 0, 0 }, \ 6111541Srgrimes { "pup", CTLTYPE_NODE }, \ 6121541Srgrimes { 0, 0 }, \ 6131541Srgrimes { 0, 0 }, \ 6141541Srgrimes { 0, 0 }, \ 6151541Srgrimes { 0, 0 }, \ 6161541Srgrimes { "udp", CTLTYPE_NODE }, \ 6171541Srgrimes { 0, 0 }, \ 6181541Srgrimes { 0, 0 }, \ 6191541Srgrimes { 0, 0 }, \ 6201541Srgrimes { 0, 0 }, \ 6211541Srgrimes { "idp", CTLTYPE_NODE }, \ 62262587Sitojun { 0, 0 }, \ 62362587Sitojun { 0, 0 }, \ 62462587Sitojun { 0, 0 }, \ 62562587Sitojun { 0, 0 }, \ 62662587Sitojun { 0, 0 }, \ 62762587Sitojun { 0, 0 }, \ 62862587Sitojun { 0, 0 }, \ 62962587Sitojun { 0, 0 }, \ 63062587Sitojun { 0, 0 }, \ 63162587Sitojun { 0, 0 }, \ 63262587Sitojun { 0, 0 }, \ 63362587Sitojun { 0, 0 }, \ 63462587Sitojun { 0, 0 }, \ 63562587Sitojun { 0, 0 }, \ 63662587Sitojun { 0, 0 }, \ 63762587Sitojun { 0, 0 }, \ 63862587Sitojun { 0, 0 }, \ 63962587Sitojun { 0, 0 }, \ 64062587Sitojun { 0, 0 }, \ 64162587Sitojun { 0, 0 }, \ 64262587Sitojun { 0, 0 }, \ 64362587Sitojun { 0, 0 }, \ 64462587Sitojun { 0, 0 }, \ 64562587Sitojun { 0, 0 }, \ 64662587Sitojun { 0, 0 }, \ 64762587Sitojun { 0, 0 }, \ 64862587Sitojun { 0, 0 }, \ 64962587Sitojun { 0, 0 }, \ 65062587Sitojun { "ipsec", CTLTYPE_NODE }, \ 651118622Shsu { 0, 0 }, \ 652118622Shsu { 0, 0 }, \ 653118622Shsu { 0, 0 }, \ 654118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 655118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 656118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 657118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 658118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 659118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 660118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 661118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 662118622Shsu { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \ 663118622Shsu { 0, 0 }, \ 664118622Shsu { 0, 0 }, \ 665118622Shsu { 0, 0 }, \ 666118622Shsu { "pim", CTLTYPE_NODE }, \ 6671541Srgrimes} 6681541Srgrimes 6691541Srgrimes/* 6701541Srgrimes * Names for IP sysctl objects 6711541Srgrimes */ 6721541Srgrimes#define IPCTL_FORWARDING 1 /* act as router */ 6731541Srgrimes#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 6741541Srgrimes#define IPCTL_DEFTTL 3 /* default TTL */ 6751541Srgrimes#ifdef notyet 6761541Srgrimes#define IPCTL_DEFMTU 4 /* default MTU */ 6771541Srgrimes#endif 678133874Srwatson#define IPCTL_RTEXPIRE 5 /* cloned route expiration time */ 679133874Srwatson#define IPCTL_RTMINEXPIRE 6 /* min value for expiration time */ 680133874Srwatson#define IPCTL_RTMAXCACHE 7 /* trigger level for dynamic expire */ 6817091Swollman#define IPCTL_SOURCEROUTE 8 /* may perform source routes */ 6829575Speter#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */ 683133874Srwatson#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */ 68452904Sshin#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ 68529838Swollman#define IPCTL_STATS 12 /* ipstat structure */ 68633440Sguido#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */ 68752904Sshin#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ 68855009Sshin#define IPCTL_KEEPFAITH 15 /* FAITH IPv4->IPv6 translater ctl */ 68952904Sshin#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ 69052904Sshin#define IPCTL_MAXID 17 6911541Srgrimes 6921541Srgrimes#define IPCTL_NAMES { \ 6931541Srgrimes { 0, 0 }, \ 6941541Srgrimes { "forwarding", CTLTYPE_INT }, \ 6951541Srgrimes { "redirect", CTLTYPE_INT }, \ 6961541Srgrimes { "ttl", CTLTYPE_INT }, \ 6971541Srgrimes { "mtu", CTLTYPE_INT }, \ 6985109Swollman { "rtexpire", CTLTYPE_INT }, \ 6996399Swollman { "rtminexpire", CTLTYPE_INT }, \ 7006399Swollman { "rtmaxcache", CTLTYPE_INT }, \ 7017091Swollman { "sourceroute", CTLTYPE_INT }, \ 702133874Srwatson { "directed-broadcast", CTLTYPE_INT }, \ 70312003Swollman { "intr-queue-maxlen", CTLTYPE_INT }, \ 70412003Swollman { "intr-queue-drops", CTLTYPE_INT }, \ 70529838Swollman { "stats", CTLTYPE_STRUCT }, \ 70633440Sguido { "accept_sourceroute", CTLTYPE_INT }, \ 70736192Sdg { "fastforwarding", CTLTYPE_INT }, \ 7081541Srgrimes} 7091541Srgrimes 71095336Smike#endif /* __BSD_VISIBLE */ 71195336Smike 71278243Speter#ifdef _KERNEL 71395336Smike 71478243Speterstruct ifnet; struct mbuf; /* forward declarations for Standard C */ 71578243Speter 71692723Salfredint in_broadcast(struct in_addr, struct ifnet *); 71792723Salfredint in_canforward(struct in_addr); 71892723Salfredint in_localaddr(struct in_addr); 719133486Sandreint in_localip(struct in_addr); 720133874Srwatsonchar *inet_ntoa(struct in_addr); /* in libkern */ 72192723Salfredchar *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */ 722150296Srwatsonvoid in_ifdetach(struct ifnet *); 7232169Spaul 724133874Srwatson#define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 725133874Srwatson#define in_nullhost(x) ((x).s_addr == INADDR_ANY) 726102925Ssobomax 727133874Srwatson#define satosin(sa) ((struct sockaddr_in *)(sa)) 728133874Srwatson#define sintosa(sin) ((struct sockaddr *)(sin)) 729133874Srwatson#define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) 73084101Sjlemon 73195336Smike#endif /* _KERNEL */ 73290868Smike 73395336Smike/* INET6 stuff */ 73495336Smike#if __POSIX_VISIBLE >= 200112 73595336Smike#define __KAME_NETINET_IN_H_INCLUDED_ 73695336Smike#include <netinet6/in6.h> 73795336Smike#undef __KAME_NETINET_IN_H_INCLUDED_ 73891959Smike#endif 73991959Smike 74095336Smike#endif /* !_NETINET_IN_H_*/ 741