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: stable/11/sys/netinet/in.h 317083 2017-04-18 09:27:26Z ae $ 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 46256772Skevlo#define INADDR_ANY ((in_addr_t)0x00000000) 47256772Skevlo#define INADDR_BROADCAST ((in_addr_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 92196967Sphk#include <sys/_sockaddr_storage.h> 93170613Sbms 9495336Smike/* Socket address, internet style. */ 9595336Smikestruct sockaddr_in { 9695336Smike uint8_t sin_len; 9795336Smike sa_family_t sin_family; 9895336Smike in_port_t sin_port; 9995336Smike struct in_addr sin_addr; 10095336Smike char sin_zero[8]; 10195336Smike}; 10295336Smike 103266842Sjilles#if !defined(_KERNEL) && __POSIX_VISIBLE >= 200112 10495336Smike 10595336Smike#ifndef _BYTEORDER_PROTOTYPED 10695336Smike#define _BYTEORDER_PROTOTYPED 10795336Smike__BEGIN_DECLS 10895336Smikeuint32_t htonl(uint32_t); 10995336Smikeuint16_t htons(uint16_t); 11095336Smikeuint32_t ntohl(uint32_t); 11195336Smikeuint16_t ntohs(uint16_t); 11295336Smike__END_DECLS 11395336Smike#endif 11495336Smike 11595336Smike#ifndef _BYTEORDER_FUNC_DEFINED 11695336Smike#define _BYTEORDER_FUNC_DEFINED 11795336Smike#define htonl(x) __htonl(x) 11895336Smike#define htons(x) __htons(x) 11995336Smike#define ntohl(x) __ntohl(x) 12095336Smike#define ntohs(x) __ntohs(x) 12195336Smike#endif 12295336Smike 123266842Sjilles#endif /* !_KERNEL && __POSIX_VISIBLE >= 200112 */ 12495336Smike 12595336Smike#if __POSIX_VISIBLE >= 200112 126250000Scperciva#define IPPROTO_IPV6 41 /* IP6 header */ 12795336Smike#define IPPROTO_RAW 255 /* raw IP packet */ 12895336Smike#define INET_ADDRSTRLEN 16 12995336Smike#endif 13095336Smike 13195336Smike#if __BSD_VISIBLE 1321541Srgrimes/* 1331541Srgrimes * Constants and structures defined by the internet system, 1341541Srgrimes * Per RFC 790, September 1981, and numerous additions. 1351541Srgrimes */ 1361541Srgrimes 1371541Srgrimes/* 13833804Sjulian * Protocols (RFC 1700) 1391541Srgrimes */ 14052904Sshin#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ 1411541Srgrimes#define IPPROTO_IGMP 2 /* group mgmt protocol */ 1421541Srgrimes#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ 143133874Srwatson#define IPPROTO_IPV4 4 /* IPv4 encapsulation */ 144133874Srwatson#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */ 14533804Sjulian#define IPPROTO_ST 7 /* Stream protocol II */ 1461541Srgrimes#define IPPROTO_EGP 8 /* exterior gateway protocol */ 14733804Sjulian#define IPPROTO_PIGP 9 /* private interior gateway */ 14833804Sjulian#define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */ 14933804Sjulian#define IPPROTO_NVPII 11 /* network voice protocol*/ 1501541Srgrimes#define IPPROTO_PUP 12 /* pup */ 15133804Sjulian#define IPPROTO_ARGUS 13 /* Argus */ 15233804Sjulian#define IPPROTO_EMCON 14 /* EMCON */ 15333804Sjulian#define IPPROTO_XNET 15 /* Cross Net Debugger */ 15433804Sjulian#define IPPROTO_CHAOS 16 /* Chaos*/ 15533804Sjulian#define IPPROTO_MUX 18 /* Multiplexing */ 15633804Sjulian#define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */ 15733804Sjulian#define IPPROTO_HMP 20 /* Host Monitoring */ 15833804Sjulian#define IPPROTO_PRM 21 /* Packet Radio Measurement */ 1591541Srgrimes#define IPPROTO_IDP 22 /* xns idp */ 16033804Sjulian#define IPPROTO_TRUNK1 23 /* Trunk-1 */ 16133804Sjulian#define IPPROTO_TRUNK2 24 /* Trunk-2 */ 16233804Sjulian#define IPPROTO_LEAF1 25 /* Leaf-1 */ 16333804Sjulian#define IPPROTO_LEAF2 26 /* Leaf-2 */ 16433804Sjulian#define IPPROTO_RDP 27 /* Reliable Data */ 16533804Sjulian#define IPPROTO_IRTP 28 /* Reliable Transaction */ 166133874Srwatson#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ 16733804Sjulian#define IPPROTO_BLT 30 /* Bulk Data Transfer */ 16833804Sjulian#define IPPROTO_NSP 31 /* Network Services */ 16933804Sjulian#define IPPROTO_INP 32 /* Merit Internodal */ 17033804Sjulian#define IPPROTO_SEP 33 /* Sequential Exchange */ 17133804Sjulian#define IPPROTO_3PC 34 /* Third Party Connect */ 17233804Sjulian#define IPPROTO_IDPR 35 /* InterDomain Policy Routing */ 17333804Sjulian#define IPPROTO_XTP 36 /* XTP */ 17433804Sjulian#define IPPROTO_DDP 37 /* Datagram Delivery */ 17533804Sjulian#define IPPROTO_CMTP 38 /* Control Message Transport */ 17633804Sjulian#define IPPROTO_TPXX 39 /* TP++ Transport */ 17733804Sjulian#define IPPROTO_IL 40 /* IL transport protocol */ 17833804Sjulian#define IPPROTO_SDRP 42 /* Source Demand Routing */ 17952904Sshin#define IPPROTO_ROUTING 43 /* IP6 routing header */ 18052904Sshin#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */ 18133804Sjulian#define IPPROTO_IDRP 45 /* InterDomain Routing*/ 182133874Srwatson#define IPPROTO_RSVP 46 /* resource reservation */ 18333804Sjulian#define IPPROTO_GRE 47 /* General Routing Encap. */ 18433804Sjulian#define IPPROTO_MHRP 48 /* Mobile Host Routing */ 18533804Sjulian#define IPPROTO_BHA 49 /* BHA */ 18652904Sshin#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */ 18752904Sshin#define IPPROTO_AH 51 /* IP6 Auth Header */ 18833804Sjulian#define IPPROTO_INLSP 52 /* Integ. Net Layer Security */ 18933804Sjulian#define IPPROTO_SWIPE 53 /* IP with encryption */ 19033804Sjulian#define IPPROTO_NHRP 54 /* Next Hop Resolution */ 191133874Srwatson#define IPPROTO_MOBILE 55 /* IP Mobility */ 192133874Srwatson#define IPPROTO_TLSP 56 /* Transport Layer Security */ 193133874Srwatson#define IPPROTO_SKIP 57 /* SKIP */ 19452904Sshin#define IPPROTO_ICMPV6 58 /* ICMP6 */ 19552904Sshin#define IPPROTO_NONE 59 /* IP6 no next header */ 19652904Sshin#define IPPROTO_DSTOPTS 60 /* IP6 destination option */ 19733804Sjulian#define IPPROTO_AHIP 61 /* any host internal protocol */ 19833804Sjulian#define IPPROTO_CFTP 62 /* CFTP */ 19933804Sjulian#define IPPROTO_HELLO 63 /* "hello" routing protocol */ 20033804Sjulian#define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */ 20133804Sjulian#define IPPROTO_KRYPTOLAN 65 /* Kryptolan */ 20233804Sjulian#define IPPROTO_RVD 66 /* Remote Virtual Disk */ 20333804Sjulian#define IPPROTO_IPPC 67 /* Pluribus Packet Core */ 20433804Sjulian#define IPPROTO_ADFS 68 /* Any distributed FS */ 20533804Sjulian#define IPPROTO_SATMON 69 /* Satnet Monitoring */ 20633804Sjulian#define IPPROTO_VISA 70 /* VISA Protocol */ 20733804Sjulian#define IPPROTO_IPCV 71 /* Packet Core Utility */ 20833804Sjulian#define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */ 20933804Sjulian#define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */ 21033804Sjulian#define IPPROTO_WSN 74 /* Wang Span Network */ 21133804Sjulian#define IPPROTO_PVP 75 /* Packet Video Protocol */ 21233804Sjulian#define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */ 21333804Sjulian#define IPPROTO_ND 77 /* Sun net disk proto (temp.) */ 21433804Sjulian#define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */ 21533804Sjulian#define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */ 2161541Srgrimes#define IPPROTO_EON 80 /* ISO cnlp */ 21733804Sjulian#define IPPROTO_VMTP 81 /* VMTP */ 21833804Sjulian#define IPPROTO_SVMTP 82 /* Secure VMTP */ 21933804Sjulian#define IPPROTO_VINES 83 /* Banyon VINES */ 22033804Sjulian#define IPPROTO_TTP 84 /* TTP */ 22133804Sjulian#define IPPROTO_IGP 85 /* NSFNET-IGP */ 22233804Sjulian#define IPPROTO_DGP 86 /* dissimilar gateway prot. */ 22333814Sjulian#define IPPROTO_TCF 87 /* TCF */ 22433804Sjulian#define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */ 22533804Sjulian#define IPPROTO_OSPFIGP 89 /* OSPFIGP */ 22633804Sjulian#define IPPROTO_SRPC 90 /* Strite RPC protocol */ 22733804Sjulian#define IPPROTO_LARP 91 /* Locus Address Resoloution */ 22833804Sjulian#define IPPROTO_MTP 92 /* Multicast Transport */ 22933804Sjulian#define IPPROTO_AX25 93 /* AX.25 Frames */ 23033804Sjulian#define IPPROTO_IPEIP 94 /* IP encapsulated in IP */ 23133804Sjulian#define IPPROTO_MICP 95 /* Mobile Int.ing control */ 23233804Sjulian#define IPPROTO_SCCSP 96 /* Semaphore Comm. security */ 23333804Sjulian#define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */ 2341541Srgrimes#define IPPROTO_ENCAP 98 /* encapsulation header */ 23533804Sjulian#define IPPROTO_APES 99 /* any private encr. scheme */ 23633804Sjulian#define IPPROTO_GMTP 100 /* GMTP*/ 23752904Sshin#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */ 238153553Sdelphij#define IPPROTO_SCTP 132 /* SCTP */ 239206022Sdelphij#define IPPROTO_MH 135 /* IPv6 Mobility Header */ 240264212Skevlo#define IPPROTO_UDPLITE 136 /* UDP-Lite */ 241259887Sbz#define IPPROTO_HIP 139 /* IP6 Host Identity Protocol */ 242259887Sbz#define IPPROTO_SHIM6 140 /* IP6 Shim6 Protocol */ 24346420Sluigi/* 101-254: Partly Unassigned */ 24452904Sshin#define IPPROTO_PIM 103 /* Protocol Independent Mcast */ 245142215Sglebius#define IPPROTO_CARP 112 /* CARP */ 24646420Sluigi#define IPPROTO_PGM 113 /* PGM */ 247236157Semaste#define IPPROTO_MPLS 137 /* MPLS-in-IP */ 248130609Smlaier#define IPPROTO_PFSYNC 240 /* PFSYNC */ 249259887Sbz#define IPPROTO_RESERVED_253 253 /* Reserved */ 250259887Sbz#define IPPROTO_RESERVED_254 254 /* Reserved */ 25133804Sjulian/* 255: Reserved */ 252106152Sfenner/* BSD Private, local use, namespace incursion, no longer used */ 253106152Sfenner#define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */ 2541541Srgrimes#define IPPROTO_MAX 256 2551541Srgrimes 25652904Sshin/* last return value of *_input(), meaning "all job for this pkt is done". */ 25752904Sshin#define IPPROTO_DONE 257 2581541Srgrimes 259106152Sfenner/* Only used internally, so can be outside the range of valid IP protocols. */ 260106152Sfenner#define IPPROTO_DIVERT 258 /* divert pseudo-protocol */ 261211501Sanchie#define IPPROTO_SEND 259 /* SeND pseudo-protocol */ 262106152Sfenner 2631541Srgrimes/* 264136712Sandre * Defined to avoid confusion. The master value is defined by 265136712Sandre * PROTO_SPACER in sys/protosw.h. 266136712Sandre */ 267136712Sandre#define IPPROTO_SPACER 32767 /* spacer for loadable protos */ 268136712Sandre 269136712Sandre/* 2701541Srgrimes * Local port number conventions: 27114195Speter * 27214195Speter * When a user does a bind(2) or connect(2) with a port number of zero, 27314195Speter * a non-conflicting local port address is chosen. 27494291Ssilby * The default range is IPPORT_HIFIRSTAUTO through 27594291Ssilby * IPPORT_HILASTAUTO, although that is settable by sysctl. 27614195Speter * 27714195Speter * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 27814195Speter * default assignment range. 27914195Speter * 28014195Speter * The value IP_PORTRANGE_DEFAULT causes the default behavior. 28114195Speter * 28214195Speter * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers 28314195Speter * into the "high" range. These are reserved for client outbound connections 284176805Srpaulo * which do not want to be filtered by any firewalls. 28514195Speter * 28614195Speter * The value IP_PORTRANGE_LOW changes the range to the "low" are 28714195Speter * that is (by convention) restricted to privileged processes. This 28814195Speter * convention is based on "vouchsafe" principles only. It is only secure 28914195Speter * if you trust the remote host to restrict these ports. 29014195Speter * 29114195Speter * The default range of ports and the high range can be changed by 29217541Speter * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto) 29314195Speter * 29414195Speter * Changing those values has bad security implications if you are 295108533Sschweikh * using a stateless firewall that is allowing packets outside of that 29614195Speter * range in order to allow transparent outgoing connections. 29714195Speter * 29814195Speter * Such a firewall configuration will generally depend on the use of these 29914195Speter * default values. If you change them, you may find your Security 30014195Speter * Administrator looking for you with a heavy object. 30135304Sphk * 30235304Sphk * For a slightly more orthodox text view on this: 30335304Sphk * 30435304Sphk * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers 30535304Sphk * 30635304Sphk * port numbers are divided into three ranges: 30735304Sphk * 30835304Sphk * 0 - 1023 Well Known Ports 30935304Sphk * 1024 - 49151 Registered Ports 31035304Sphk * 49152 - 65535 Dynamic and/or Private Ports 31135304Sphk * 31214195Speter */ 31314195Speter 31414195Speter/* 3151541Srgrimes * Ports < IPPORT_RESERVED are reserved for 31614195Speter * privileged processes (e.g. root). (IP_PORTRANGE_LOW) 3171541Srgrimes */ 3181541Srgrimes#define IPPORT_RESERVED 1024 3191541Srgrimes 3201541Srgrimes/* 321176805Srpaulo * Default local port range, used by IP_PORTRANGE_DEFAULT 32213491Speter */ 323176805Srpaulo#define IPPORT_EPHEMERALFIRST 10000 324176805Srpaulo#define IPPORT_EPHEMERALLAST 65535 325176805Srpaulo 326176805Srpaulo/* 327176805Srpaulo * Dynamic port range, used by IP_PORTRANGE_HIGH. 328176805Srpaulo */ 32935304Sphk#define IPPORT_HIFIRSTAUTO 49152 33035304Sphk#define IPPORT_HILASTAUTO 65535 33113491Speter 33213491Speter/* 33317541Speter * Scanning for a free reserved port return a value below IPPORT_RESERVED, 33417541Speter * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was 33517541Speter * 512, but that conflicts with some well-known-services that firewalls may 33617541Speter * have a fit if we use. 33717541Speter */ 338133874Srwatson#define IPPORT_RESERVEDSTART 600 33917541Speter 34087158Smike#define IPPORT_MAX 65535 34187158Smike 34217541Speter/* 3431541Srgrimes * Definitions of bits in internet address integers. 3441541Srgrimes * On subnets, the decomposition of addresses to host and net parts 3451541Srgrimes * is done according to subnet mask, not the masks here. 3461541Srgrimes */ 347256772Skevlo#define IN_CLASSA(i) (((in_addr_t)(i) & 0x80000000) == 0) 3481541Srgrimes#define IN_CLASSA_NET 0xff000000 3491541Srgrimes#define IN_CLASSA_NSHIFT 24 3501541Srgrimes#define IN_CLASSA_HOST 0x00ffffff 3511541Srgrimes#define IN_CLASSA_MAX 128 3521541Srgrimes 353256772Skevlo#define IN_CLASSB(i) (((in_addr_t)(i) & 0xc0000000) == 0x80000000) 3541541Srgrimes#define IN_CLASSB_NET 0xffff0000 3551541Srgrimes#define IN_CLASSB_NSHIFT 16 3561541Srgrimes#define IN_CLASSB_HOST 0x0000ffff 3571541Srgrimes#define IN_CLASSB_MAX 65536 3581541Srgrimes 359256772Skevlo#define IN_CLASSC(i) (((in_addr_t)(i) & 0xe0000000) == 0xc0000000) 3601541Srgrimes#define IN_CLASSC_NET 0xffffff00 3611541Srgrimes#define IN_CLASSC_NSHIFT 8 3621541Srgrimes#define IN_CLASSC_HOST 0x000000ff 3631541Srgrimes 364256772Skevlo#define IN_CLASSD(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000) 3651541Srgrimes#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ 3661541Srgrimes#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ 3671541Srgrimes#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ 3681541Srgrimes#define IN_MULTICAST(i) IN_CLASSD(i) 3691541Srgrimes 370256772Skevlo#define IN_EXPERIMENTAL(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) 371256772Skevlo#define IN_BADCLASS(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) 3721541Srgrimes 373256772Skevlo#define IN_LINKLOCAL(i) (((in_addr_t)(i) & 0xffff0000) == 0xa9fe0000) 374256772Skevlo#define IN_LOOPBACK(i) (((in_addr_t)(i) & 0xff000000) == 0x7f000000) 375256772Skevlo#define IN_ZERONET(i) (((in_addr_t)(i) & 0xff000000) == 0) 376166368Sbms 377256772Skevlo#define IN_PRIVATE(i) ((((in_addr_t)(i) & 0xff000000) == 0x0a000000) || \ 378256772Skevlo (((in_addr_t)(i) & 0xfff00000) == 0xac100000) || \ 379256772Skevlo (((in_addr_t)(i) & 0xffff0000) == 0xc0a80000)) 380166368Sbms 381256772Skevlo#define IN_LOCAL_GROUP(i) (((in_addr_t)(i) & 0xffffff00) == 0xe0000000) 382166368Sbms 383166368Sbms#define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i)) 384166368Sbms 385256772Skevlo#define INADDR_LOOPBACK ((in_addr_t)0x7f000001) 38655205Speter#ifndef _KERNEL 387256772Skevlo#define INADDR_NONE ((in_addr_t)0xffffffff) /* -1 return */ 3881541Srgrimes#endif 3891541Srgrimes 390256772Skevlo#define INADDR_UNSPEC_GROUP ((in_addr_t)0xe0000000) /* 224.0.0.0 */ 391256772Skevlo#define INADDR_ALLHOSTS_GROUP ((in_addr_t)0xe0000001) /* 224.0.0.1 */ 392256772Skevlo#define INADDR_ALLRTRS_GROUP ((in_addr_t)0xe0000002) /* 224.0.0.2 */ 393256772Skevlo#define INADDR_ALLRPTS_GROUP ((in_addr_t)0xe0000016) /* 224.0.0.22, IGMPv3 */ 394256772Skevlo#define INADDR_CARP_GROUP ((in_addr_t)0xe0000012) /* 224.0.0.18 */ 395256772Skevlo#define INADDR_PFSYNC_GROUP ((in_addr_t)0xe00000f0) /* 224.0.0.240 */ 396256772Skevlo#define INADDR_ALLMDNS_GROUP ((in_addr_t)0xe00000fb) /* 224.0.0.251 */ 397256772Skevlo#define INADDR_MAX_LOCAL_GROUP ((in_addr_t)0xe00000ff) /* 224.0.0.255 */ 3981541Srgrimes 3991541Srgrimes#define IN_LOOPBACKNET 127 /* official! */ 4001541Srgrimes 401256772Skevlo#define IN_RFC3021_MASK ((in_addr_t)0xfffffffe) 402226402Sglebius 4031541Srgrimes/* 4041541Srgrimes * Options for use with [gs]etsockopt at the IP level. 4051541Srgrimes * First word of comment is data type; bool is stored in int. 4061541Srgrimes */ 4071541Srgrimes#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 4081541Srgrimes#define IP_HDRINCL 2 /* int; header is included with data */ 4091541Srgrimes#define IP_TOS 3 /* int; IP type of service and preced. */ 4101541Srgrimes#define IP_TTL 4 /* int; IP time to live */ 4111541Srgrimes#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 4121541Srgrimes#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 4131541Srgrimes#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 414105651Siedowse#define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */ 4151541Srgrimes#define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 416170613Sbms#define IP_MULTICAST_IF 9 /* struct in_addr *or* struct ip_mreqn; 417170613Sbms * set/get IP multicast i/f */ 4181541Srgrimes#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 4191541Srgrimes#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 4201541Srgrimes#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 4211541Srgrimes#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 422133874Srwatson#define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */ 423133874Srwatson#define IP_RSVP_ON 15 /* enable RSVP in kernel */ 424133874Srwatson#define IP_RSVP_OFF 16 /* disable RSVP in kernel */ 425133874Srwatson#define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ 426133874Srwatson#define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ 427133874Srwatson#define IP_PORTRANGE 19 /* int; range to choose for unspec port */ 42819622Sfenner#define IP_RECVIF 20 /* bool; receive reception if w/dgram */ 42952904Sshin/* for IPSEC */ 43052904Sshin#define IP_IPSEC_POLICY 21 /* int; set/get security policy */ 431274331Smelifaro /* unused; was IP_FAITH */ 432119178Sbms#define IP_ONESBCAST 23 /* bool: send all-ones broadcast */ 433193217Spjd#define IP_BINDANY 24 /* bool: allow bind to any address */ 434268479Sadrian#define IP_BINDMULTI 25 /* bool: allow multiple listeners on a tuple */ 435268479Sadrian#define IP_RSS_LISTEN_BUCKET 26 /* int; set RSS listen bucket */ 436119178Sbms 437200023Sluigi/* 438200023Sluigi * Options for controlling the firewall and dummynet. 439200023Sluigi * Historical options (from 40 to 64) will eventually be 440200023Sluigi * replaced by only two options, IP_FW3 and IP_DUMMYNET3. 441200023Sluigi */ 442130281Sru#define IP_FW_TABLE_ADD 40 /* add entry */ 443130281Sru#define IP_FW_TABLE_DEL 41 /* delete entry */ 444130281Sru#define IP_FW_TABLE_FLUSH 42 /* flush table */ 445130281Sru#define IP_FW_TABLE_GETSIZE 43 /* get table size */ 446130281Sru#define IP_FW_TABLE_LIST 44 /* list table contents */ 447130281Sru 448200023Sluigi#define IP_FW3 48 /* generic ipfw v.3 sockopts */ 449200023Sluigi#define IP_DUMMYNET3 49 /* generic dummynet v.3 sockopts */ 450200023Sluigi 451133874Srwatson#define IP_FW_ADD 50 /* add a firewall rule to chain */ 452133874Srwatson#define IP_FW_DEL 51 /* delete a firewall rule from chain */ 453133874Srwatson#define IP_FW_FLUSH 52 /* flush firewall rule chain */ 454133874Srwatson#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */ 455133874Srwatson#define IP_FW_GET 54 /* get entire firewall rule chain */ 45652904Sshin#define IP_FW_RESETLOG 55 /* reset logging counters */ 45717758Ssos 458165648Spiso#define IP_FW_NAT_CFG 56 /* add/config a nat rule */ 459165648Spiso#define IP_FW_NAT_DEL 57 /* delete a nat rule */ 460165648Spiso#define IP_FW_NAT_GET_CONFIG 58 /* get configuration of a nat rule */ 461165648Spiso#define IP_FW_NAT_GET_LOG 59 /* get log of a nat rule */ 462165648Spiso 46341793Sluigi#define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */ 46441793Sluigi#define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */ 46541793Sluigi#define IP_DUMMYNET_FLUSH 62 /* flush dummynet */ 46641793Sluigi#define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */ 46741793Sluigi 468114258Smdodd#define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */ 469149371Sandre#define IP_MINTTL 66 /* minimum TTL for packet or drop */ 470150594Sandre#define IP_DONTFRAG 67 /* don't fragment packet */ 471236959Stuexen#define IP_RECVTOS 68 /* bool; receive IP TOS w/dgram */ 472114258Smdodd 473170613Sbms/* IPv4 Source Filter Multicast API [RFC3678] */ 474170613Sbms#define IP_ADD_SOURCE_MEMBERSHIP 70 /* join a source-specific group */ 475170613Sbms#define IP_DROP_SOURCE_MEMBERSHIP 71 /* drop a single source */ 476170613Sbms#define IP_BLOCK_SOURCE 72 /* block a source */ 477170613Sbms#define IP_UNBLOCK_SOURCE 73 /* unblock a source */ 478170613Sbms 479170613Sbms/* The following option is private; do not use it from user applications. */ 480170613Sbms#define IP_MSFILTER 74 /* set/get filter list */ 481170613Sbms 482170613Sbms/* Protocol Independent Multicast API [RFC3678] */ 483170613Sbms#define MCAST_JOIN_GROUP 80 /* join an any-source group */ 484170613Sbms#define MCAST_LEAVE_GROUP 81 /* leave all sources for group */ 485170613Sbms#define MCAST_JOIN_SOURCE_GROUP 82 /* join a source-specific group */ 486170613Sbms#define MCAST_LEAVE_SOURCE_GROUP 83 /* leave a single source */ 487170613Sbms#define MCAST_BLOCK_SOURCE 84 /* block a source */ 488170613Sbms#define MCAST_UNBLOCK_SOURCE 85 /* unblock a source */ 489170613Sbms 490268788Sadrian/* Flow and RSS definitions */ 491268788Sadrian#define IP_FLOWID 90 /* get flow id for the given socket/inp */ 492268788Sadrian#define IP_FLOWTYPE 91 /* get flow type (M_HASHTYPE) */ 493268788Sadrian#define IP_RSSBUCKETID 92 /* get RSS flowid -> bucket mapping */ 494271293Sadrian#define IP_RECVFLOWID 93 /* bool; receive IP flowid/flowtype w/ datagram */ 495271293Sadrian#define IP_RECVRSSBUCKETID 94 /* bool; receive IP RSS bucket id w/ datagram */ 496268788Sadrian 4971541Srgrimes/* 4981541Srgrimes * Defaults and limits for options 4991541Srgrimes */ 5001541Srgrimes#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ 5011541Srgrimes#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ 5021541Srgrimes 5031541Srgrimes/* 504158563Sbms * The imo_membership vector for each socket is now dynamically allocated at 505158563Sbms * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized 506158563Sbms * according to a power-of-two increment. 507158563Sbms */ 508158563Sbms#define IP_MIN_MEMBERSHIPS 31 509158563Sbms#define IP_MAX_MEMBERSHIPS 4095 510189346Sbms#define IP_MAX_SOURCE_FILTER 1024 /* XXX to be unused */ 511158563Sbms 512158563Sbms/* 513189346Sbms * Default resource limits for IPv4 multicast source filtering. 514189346Sbms * These may be modified by sysctl. 515189346Sbms */ 516189346Sbms#define IP_MAX_GROUP_SRC_FILTER 512 /* sources per group */ 517189346Sbms#define IP_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ 518189592Sbms#define IP_MAX_SOCK_MUTE_FILTER 128 /* XXX no longer used */ 519189346Sbms 520189346Sbms/* 5211541Srgrimes * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. 5221541Srgrimes */ 5231541Srgrimesstruct ip_mreq { 5241541Srgrimes struct in_addr imr_multiaddr; /* IP multicast address of group */ 5251541Srgrimes struct in_addr imr_interface; /* local IP address of interface */ 5261541Srgrimes}; 5271541Srgrimes 5281541Srgrimes/* 529170613Sbms * Modified argument structure for IP_MULTICAST_IF, obtained from Linux. 530170613Sbms * This is used to specify an interface index for multicast sends, as 531170613Sbms * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available). 532170613Sbms */ 533170613Sbmsstruct ip_mreqn { 534170613Sbms struct in_addr imr_multiaddr; /* IP multicast address of group */ 535170613Sbms struct in_addr imr_address; /* local IP address of interface */ 536170613Sbms int imr_ifindex; /* Interface index; cast to uint32_t */ 537170613Sbms}; 538170613Sbms 539170613Sbms/* 540170613Sbms * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678] 541170613Sbms */ 542170613Sbmsstruct ip_mreq_source { 543170613Sbms struct in_addr imr_multiaddr; /* IP multicast address of group */ 544170613Sbms struct in_addr imr_sourceaddr; /* IP address of source */ 545170613Sbms struct in_addr imr_interface; /* local IP address of interface */ 546170613Sbms}; 547170613Sbms 548170613Sbms/* 549170613Sbms * Argument structures for Protocol-Independent Multicast Source 550170613Sbms * Filter APIs. [RFC3678] 551170613Sbms */ 552170613Sbmsstruct group_req { 553170613Sbms uint32_t gr_interface; /* interface index */ 554170613Sbms struct sockaddr_storage gr_group; /* group address */ 555170613Sbms}; 556170613Sbms 557170613Sbmsstruct group_source_req { 558170613Sbms uint32_t gsr_interface; /* interface index */ 559170613Sbms struct sockaddr_storage gsr_group; /* group address */ 560170613Sbms struct sockaddr_storage gsr_source; /* source address */ 561170613Sbms}; 562170613Sbms 563170613Sbms#ifndef __MSFILTERREQ_DEFINED 564170613Sbms#define __MSFILTERREQ_DEFINED 565170613Sbms/* 566170613Sbms * The following structure is private; do not use it from user applications. 567170613Sbms * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between 568170613Sbms * the RFC 3678 libc functions and the kernel. 569170613Sbms */ 570170613Sbmsstruct __msfilterreq { 571170613Sbms uint32_t msfr_ifindex; /* interface index */ 572170613Sbms uint32_t msfr_fmode; /* filter mode for group */ 573170613Sbms uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ 574170613Sbms struct sockaddr_storage msfr_group; /* group address */ 575170613Sbms struct sockaddr_storage *msfr_srcs; /* pointer to the first member 576170613Sbms * of a contiguous array of 577170613Sbms * sources to filter in full. 578170613Sbms */ 579170613Sbms}; 580170613Sbms#endif 581170613Sbms 582170613Sbmsstruct sockaddr; 583170613Sbms 584170613Sbms/* 585170613Sbms * Advanced (Full-state) APIs [RFC3678] 586170613Sbms * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter(). 587170613Sbms * We use uint32_t here to be consistent. 588170613Sbms */ 589170613Sbmsint setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t, 590170613Sbms uint32_t, struct in_addr *); 591170613Sbmsint getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *, 592170613Sbms uint32_t *, struct in_addr *); 593170613Sbmsint setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, 594170613Sbms uint32_t, uint32_t, struct sockaddr_storage *); 595170613Sbmsint getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, 596170613Sbms uint32_t *, uint32_t *, struct sockaddr_storage *); 597170613Sbms 598170613Sbms/* 599170613Sbms * Filter modes; also used to represent per-socket filter mode internally. 600170613Sbms */ 601189346Sbms#define MCAST_UNDEFINED 0 /* fmode: not yet defined */ 602170613Sbms#define MCAST_INCLUDE 1 /* fmode: include these source(s) */ 603170613Sbms#define MCAST_EXCLUDE 2 /* fmode: exclude these source(s) */ 604170613Sbms 605170613Sbms/* 60614195Speter * Argument for IP_PORTRANGE: 60714195Speter * - which range to search when port is unspecified at bind() or connect() 60814195Speter */ 60914195Speter#define IP_PORTRANGE_DEFAULT 0 /* default range */ 61014195Speter#define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ 61114195Speter#define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ 61214195Speter 61314195Speter/* 614262489Sjhb * Identifiers for IP sysctl nodes 6151541Srgrimes */ 6161541Srgrimes#define IPCTL_FORWARDING 1 /* act as router */ 6171541Srgrimes#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ 6181541Srgrimes#define IPCTL_DEFTTL 3 /* default TTL */ 6191541Srgrimes#ifdef notyet 6201541Srgrimes#define IPCTL_DEFMTU 4 /* default MTU */ 6211541Srgrimes#endif 622274363Smelifaro/* IPCTL_RTEXPIRE 5 deprecated */ 623274363Smelifaro/* IPCTL_RTMINEXPIRE 6 deprecated */ 624274363Smelifaro/* IPCTL_RTMAXCACHE 7 deprecated */ 6257091Swollman#define IPCTL_SOURCEROUTE 8 /* may perform source routes */ 6269575Speter#define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */ 627133874Srwatson#define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */ 62852904Sshin#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ 62929838Swollman#define IPCTL_STATS 12 /* ipstat structure */ 63033440Sguido#define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */ 63152904Sshin#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ 632274331Smelifaro /* 15, unused, was: IPCTL_KEEPFAITH */ 63352904Sshin#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ 634317083Sae#define IPCTL_INTRDQMAXLEN 17 /* max length of direct netisr queue */ 635317083Sae#define IPCTL_INTRDQDROPS 18 /* number of direct netisr q drops */ 6361541Srgrimes 63795336Smike#endif /* __BSD_VISIBLE */ 63895336Smike 63978243Speter#ifdef _KERNEL 64095336Smike 64178243Speterstruct ifnet; struct mbuf; /* forward declarations for Standard C */ 64278243Speter 64392723Salfredint in_broadcast(struct in_addr, struct ifnet *); 64492723Salfredint in_canforward(struct in_addr); 64592723Salfredint in_localaddr(struct in_addr); 646133486Sandreint in_localip(struct in_addr); 647281649Sglebiusint in_ifhasaddr(struct ifnet *, struct in_addr); 648199208Sattilioint inet_aton(const char *, struct in_addr *); /* in libkern */ 649133874Srwatsonchar *inet_ntoa(struct in_addr); /* in libkern */ 65092723Salfredchar *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */ 651213103Sattiliochar *inet_ntop(int, const void *, char *, socklen_t); /* in libkern */ 652213103Sattilioint inet_pton(int af, const char *, void *); /* in libkern */ 653150296Srwatsonvoid in_ifdetach(struct ifnet *); 6542169Spaul 655133874Srwatson#define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 656133874Srwatson#define in_nullhost(x) ((x).s_addr == INADDR_ANY) 657189346Sbms#define in_allhosts(x) ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP)) 658102925Ssobomax 659133874Srwatson#define satosin(sa) ((struct sockaddr_in *)(sa)) 660133874Srwatson#define sintosa(sin) ((struct sockaddr *)(sin)) 661133874Srwatson#define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) 66295336Smike#endif /* _KERNEL */ 66390868Smike 66495336Smike/* INET6 stuff */ 66595336Smike#if __POSIX_VISIBLE >= 200112 66695336Smike#define __KAME_NETINET_IN_H_INCLUDED_ 66795336Smike#include <netinet6/in6.h> 66895336Smike#undef __KAME_NETINET_IN_H_INCLUDED_ 66991959Smike#endif 67091959Smike 67195336Smike#endif /* !_NETINET_IN_H_*/ 672