[657e6c93] | 1 | /*- |
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[39e6e65a] | 2 | * Copyright (c) 1982, 1986, 1990, 1993 |
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| 3 | * The Regents of the University of California. All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * 1. Redistributions of source code must retain the above copyright |
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| 9 | * notice, this list of conditions and the following disclaimer. |
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer in the |
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| 12 | * documentation and/or other materials provided with the distribution. |
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| 13 | * 4. Neither the name of the University nor the names of its contributors |
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| 14 | * may be used to endorse or promote products derived from this software |
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| 15 | * without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 27 | * SUCH DAMAGE. |
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| 28 | * |
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| 29 | * @(#)in.h 8.3 (Berkeley) 1/3/94 |
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[657e6c93] | 30 | * $FreeBSD: head/sys/netinet/in.h 281649 2015-04-17 11:57:06Z glebius $ |
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[4c92297a] | 31 | */ |
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[39e6e65a] | 32 | |
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| 33 | #ifndef _NETINET_IN_H_ |
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[657e6c93] | 34 | #define _NETINET_IN_H_ |
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[4c92297a] | 35 | |
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[657e6c93] | 36 | #include <sys/cdefs.h> |
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| 37 | #include <sys/_types.h> |
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| 38 | #include <machine/endian.h> |
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[af20d0e1] | 39 | |
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[4c92297a] | 40 | /* Protocols common to RFC 1700, POSIX, and X/Open. */ |
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| 41 | #define IPPROTO_IP 0 /* dummy for IP */ |
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| 42 | #define IPPROTO_ICMP 1 /* control message protocol */ |
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| 43 | #define IPPROTO_TCP 6 /* tcp */ |
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| 44 | #define IPPROTO_UDP 17 /* user datagram protocol */ |
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[7a47bb5] | 45 | |
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[657e6c93] | 46 | #define INADDR_ANY ((in_addr_t)0x00000000) |
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| 47 | #define INADDR_BROADCAST ((in_addr_t)0xffffffff) /* must be masked */ |
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| 48 | |
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| 49 | #ifndef _UINT8_T_DECLARED |
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| 50 | typedef __uint8_t uint8_t; |
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| 51 | #define _UINT8_T_DECLARED |
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| 52 | #endif |
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| 53 | |
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| 54 | #ifndef _UINT16_T_DECLARED |
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| 55 | typedef __uint16_t uint16_t; |
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| 56 | #define _UINT16_T_DECLARED |
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| 57 | #endif |
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| 58 | |
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| 59 | #ifndef _UINT32_T_DECLARED |
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| 60 | typedef __uint32_t uint32_t; |
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| 61 | #define _UINT32_T_DECLARED |
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| 62 | #endif |
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| 63 | |
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| 64 | #ifndef _IN_ADDR_T_DECLARED |
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| 65 | typedef uint32_t in_addr_t; |
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| 66 | #define _IN_ADDR_T_DECLARED |
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| 67 | #endif |
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[5fce938] | 68 | |
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| 69 | #ifndef _IN_PORT_T_DECLARED |
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[4f792aec] | 70 | typedef uint16_t in_port_t; |
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[5fce938] | 71 | #define _IN_PORT_T_DECLARED |
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| 72 | #endif |
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| 73 | |
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| 74 | #ifndef _SA_FAMILY_T_DECLARED |
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[9e7678d] | 75 | typedef __sa_family_t sa_family_t; |
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[5fce938] | 76 | #define _SA_FAMILY_T_DECLARED |
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| 77 | #endif |
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| 78 | |
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[d74c13b] | 79 | /* Internet address (a structure for historical reasons). */ |
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[657e6c93] | 80 | #ifndef _STRUCT_IN_ADDR_DECLARED |
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[5fce938] | 81 | struct in_addr { |
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[af20d0e1] | 82 | in_addr_t s_addr; |
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[5fce938] | 83 | }; |
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[657e6c93] | 84 | #define _STRUCT_IN_ADDR_DECLARED |
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| 85 | #endif |
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| 86 | |
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| 87 | #ifndef _SOCKLEN_T_DECLARED |
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| 88 | typedef __socklen_t socklen_t; |
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| 89 | #define _SOCKLEN_T_DECLARED |
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[5fce938] | 90 | #endif |
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| 91 | |
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[657e6c93] | 92 | #include <sys/_sockaddr_storage.h> |
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| 93 | |
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[5fce938] | 94 | /* Socket address, internet style. */ |
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| 95 | struct sockaddr_in { |
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| 96 | uint8_t sin_len; |
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| 97 | sa_family_t sin_family; |
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| 98 | in_port_t sin_port; |
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| 99 | struct in_addr sin_addr; |
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| 100 | char sin_zero[8]; |
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| 101 | }; |
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| 102 | |
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[657e6c93] | 103 | #if !defined(_KERNEL) && __POSIX_VISIBLE >= 200112 |
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| 104 | |
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| 105 | #ifndef _BYTEORDER_PROTOTYPED |
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| 106 | #define _BYTEORDER_PROTOTYPED |
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| 107 | __BEGIN_DECLS |
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| 108 | uint32_t htonl(uint32_t); |
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| 109 | uint16_t htons(uint16_t); |
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| 110 | uint32_t ntohl(uint32_t); |
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| 111 | uint16_t ntohs(uint16_t); |
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| 112 | __END_DECLS |
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| 113 | #endif |
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| 114 | |
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| 115 | #ifndef _BYTEORDER_FUNC_DEFINED |
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| 116 | #define _BYTEORDER_FUNC_DEFINED |
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| 117 | #define htonl(x) __htonl(x) |
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| 118 | #define htons(x) __htons(x) |
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| 119 | #define ntohl(x) __ntohl(x) |
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| 120 | #define ntohs(x) __ntohs(x) |
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| 121 | #endif |
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| 122 | |
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| 123 | #endif /* !_KERNEL && __POSIX_VISIBLE >= 200112 */ |
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| 124 | |
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| 125 | #if __POSIX_VISIBLE >= 200112 |
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| 126 | #define IPPROTO_IPV6 41 /* IP6 header */ |
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| 127 | #define IPPROTO_RAW 255 /* raw IP packet */ |
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| 128 | #define INET_ADDRSTRLEN 16 |
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| 129 | #endif |
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[5fce938] | 130 | |
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[657e6c93] | 131 | #if __BSD_VISIBLE |
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[39e6e65a] | 132 | /* |
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| 133 | * Constants and structures defined by the internet system, |
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| 134 | * Per RFC 790, September 1981, and numerous additions. |
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| 135 | */ |
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| 136 | |
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| 137 | /* |
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| 138 | * Protocols (RFC 1700) |
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| 139 | */ |
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[4c92297a] | 140 | #define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ |
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[39e6e65a] | 141 | #define IPPROTO_IGMP 2 /* group mgmt protocol */ |
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| 142 | #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ |
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[4c92297a] | 143 | #define IPPROTO_IPV4 4 /* IPv4 encapsulation */ |
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| 144 | #define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */ |
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[39e6e65a] | 145 | #define IPPROTO_ST 7 /* Stream protocol II */ |
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| 146 | #define IPPROTO_EGP 8 /* exterior gateway protocol */ |
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| 147 | #define IPPROTO_PIGP 9 /* private interior gateway */ |
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| 148 | #define IPPROTO_RCCMON 10 /* BBN RCC Monitoring */ |
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| 149 | #define IPPROTO_NVPII 11 /* network voice protocol*/ |
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| 150 | #define IPPROTO_PUP 12 /* pup */ |
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| 151 | #define IPPROTO_ARGUS 13 /* Argus */ |
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| 152 | #define IPPROTO_EMCON 14 /* EMCON */ |
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| 153 | #define IPPROTO_XNET 15 /* Cross Net Debugger */ |
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| 154 | #define IPPROTO_CHAOS 16 /* Chaos*/ |
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| 155 | #define IPPROTO_MUX 18 /* Multiplexing */ |
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| 156 | #define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */ |
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| 157 | #define IPPROTO_HMP 20 /* Host Monitoring */ |
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| 158 | #define IPPROTO_PRM 21 /* Packet Radio Measurement */ |
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| 159 | #define IPPROTO_IDP 22 /* xns idp */ |
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| 160 | #define IPPROTO_TRUNK1 23 /* Trunk-1 */ |
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| 161 | #define IPPROTO_TRUNK2 24 /* Trunk-2 */ |
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| 162 | #define IPPROTO_LEAF1 25 /* Leaf-1 */ |
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| 163 | #define IPPROTO_LEAF2 26 /* Leaf-2 */ |
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| 164 | #define IPPROTO_RDP 27 /* Reliable Data */ |
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| 165 | #define IPPROTO_IRTP 28 /* Reliable Transaction */ |
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[657e6c93] | 166 | #define IPPROTO_TP 29 /* tp-4 w/ class negotiation */ |
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[39e6e65a] | 167 | #define IPPROTO_BLT 30 /* Bulk Data Transfer */ |
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| 168 | #define IPPROTO_NSP 31 /* Network Services */ |
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| 169 | #define IPPROTO_INP 32 /* Merit Internodal */ |
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| 170 | #define IPPROTO_SEP 33 /* Sequential Exchange */ |
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| 171 | #define IPPROTO_3PC 34 /* Third Party Connect */ |
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| 172 | #define IPPROTO_IDPR 35 /* InterDomain Policy Routing */ |
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| 173 | #define IPPROTO_XTP 36 /* XTP */ |
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| 174 | #define IPPROTO_DDP 37 /* Datagram Delivery */ |
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| 175 | #define IPPROTO_CMTP 38 /* Control Message Transport */ |
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| 176 | #define IPPROTO_TPXX 39 /* TP++ Transport */ |
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| 177 | #define IPPROTO_IL 40 /* IL transport protocol */ |
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| 178 | #define IPPROTO_SDRP 42 /* Source Demand Routing */ |
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[4c92297a] | 179 | #define IPPROTO_ROUTING 43 /* IP6 routing header */ |
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| 180 | #define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */ |
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[39e6e65a] | 181 | #define IPPROTO_IDRP 45 /* InterDomain Routing*/ |
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[657e6c93] | 182 | #define IPPROTO_RSVP 46 /* resource reservation */ |
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[39e6e65a] | 183 | #define IPPROTO_GRE 47 /* General Routing Encap. */ |
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| 184 | #define IPPROTO_MHRP 48 /* Mobile Host Routing */ |
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| 185 | #define IPPROTO_BHA 49 /* BHA */ |
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[4c92297a] | 186 | #define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */ |
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| 187 | #define IPPROTO_AH 51 /* IP6 Auth Header */ |
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[39e6e65a] | 188 | #define IPPROTO_INLSP 52 /* Integ. Net Layer Security */ |
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| 189 | #define IPPROTO_SWIPE 53 /* IP with encryption */ |
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| 190 | #define IPPROTO_NHRP 54 /* Next Hop Resolution */ |
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[4c92297a] | 191 | #define IPPROTO_MOBILE 55 /* IP Mobility */ |
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| 192 | #define IPPROTO_TLSP 56 /* Transport Layer Security */ |
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| 193 | #define IPPROTO_SKIP 57 /* SKIP */ |
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| 194 | #define IPPROTO_ICMPV6 58 /* ICMP6 */ |
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| 195 | #define IPPROTO_NONE 59 /* IP6 no next header */ |
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| 196 | #define IPPROTO_DSTOPTS 60 /* IP6 destination option */ |
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[39e6e65a] | 197 | #define IPPROTO_AHIP 61 /* any host internal protocol */ |
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| 198 | #define IPPROTO_CFTP 62 /* CFTP */ |
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| 199 | #define IPPROTO_HELLO 63 /* "hello" routing protocol */ |
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| 200 | #define IPPROTO_SATEXPAK 64 /* SATNET/Backroom EXPAK */ |
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| 201 | #define IPPROTO_KRYPTOLAN 65 /* Kryptolan */ |
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| 202 | #define IPPROTO_RVD 66 /* Remote Virtual Disk */ |
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| 203 | #define IPPROTO_IPPC 67 /* Pluribus Packet Core */ |
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| 204 | #define IPPROTO_ADFS 68 /* Any distributed FS */ |
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| 205 | #define IPPROTO_SATMON 69 /* Satnet Monitoring */ |
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| 206 | #define IPPROTO_VISA 70 /* VISA Protocol */ |
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| 207 | #define IPPROTO_IPCV 71 /* Packet Core Utility */ |
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| 208 | #define IPPROTO_CPNX 72 /* Comp. Prot. Net. Executive */ |
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| 209 | #define IPPROTO_CPHB 73 /* Comp. Prot. HeartBeat */ |
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| 210 | #define IPPROTO_WSN 74 /* Wang Span Network */ |
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| 211 | #define IPPROTO_PVP 75 /* Packet Video Protocol */ |
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| 212 | #define IPPROTO_BRSATMON 76 /* BackRoom SATNET Monitoring */ |
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| 213 | #define IPPROTO_ND 77 /* Sun net disk proto (temp.) */ |
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| 214 | #define IPPROTO_WBMON 78 /* WIDEBAND Monitoring */ |
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| 215 | #define IPPROTO_WBEXPAK 79 /* WIDEBAND EXPAK */ |
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| 216 | #define IPPROTO_EON 80 /* ISO cnlp */ |
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| 217 | #define IPPROTO_VMTP 81 /* VMTP */ |
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| 218 | #define IPPROTO_SVMTP 82 /* Secure VMTP */ |
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| 219 | #define IPPROTO_VINES 83 /* Banyon VINES */ |
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| 220 | #define IPPROTO_TTP 84 /* TTP */ |
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| 221 | #define IPPROTO_IGP 85 /* NSFNET-IGP */ |
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| 222 | #define IPPROTO_DGP 86 /* dissimilar gateway prot. */ |
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| 223 | #define IPPROTO_TCF 87 /* TCF */ |
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| 224 | #define IPPROTO_IGRP 88 /* Cisco/GXS IGRP */ |
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| 225 | #define IPPROTO_OSPFIGP 89 /* OSPFIGP */ |
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| 226 | #define IPPROTO_SRPC 90 /* Strite RPC protocol */ |
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| 227 | #define IPPROTO_LARP 91 /* Locus Address Resoloution */ |
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| 228 | #define IPPROTO_MTP 92 /* Multicast Transport */ |
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| 229 | #define IPPROTO_AX25 93 /* AX.25 Frames */ |
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| 230 | #define IPPROTO_IPEIP 94 /* IP encapsulated in IP */ |
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| 231 | #define IPPROTO_MICP 95 /* Mobile Int.ing control */ |
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| 232 | #define IPPROTO_SCCSP 96 /* Semaphore Comm. security */ |
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| 233 | #define IPPROTO_ETHERIP 97 /* Ethernet IP encapsulation */ |
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| 234 | #define IPPROTO_ENCAP 98 /* encapsulation header */ |
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| 235 | #define IPPROTO_APES 99 /* any private encr. scheme */ |
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| 236 | #define IPPROTO_GMTP 100 /* GMTP*/ |
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[5fce938] | 237 | #define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */ |
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[657e6c93] | 238 | #define IPPROTO_SCTP 132 /* SCTP */ |
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| 239 | #define IPPROTO_MH 135 /* IPv6 Mobility Header */ |
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| 240 | #define IPPROTO_UDPLITE 136 /* UDP-Lite */ |
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| 241 | #define IPPROTO_HIP 139 /* IP6 Host Identity Protocol */ |
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| 242 | #define IPPROTO_SHIM6 140 /* IP6 Shim6 Protocol */ |
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[5fce938] | 243 | /* 101-254: Partly Unassigned */ |
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| 244 | #define IPPROTO_PIM 103 /* Protocol Independent Mcast */ |
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| 245 | #define IPPROTO_CARP 112 /* CARP */ |
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| 246 | #define IPPROTO_PGM 113 /* PGM */ |
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[657e6c93] | 247 | #define IPPROTO_MPLS 137 /* MPLS-in-IP */ |
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[5fce938] | 248 | #define IPPROTO_PFSYNC 240 /* PFSYNC */ |
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[657e6c93] | 249 | #define IPPROTO_RESERVED_253 253 /* Reserved */ |
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| 250 | #define IPPROTO_RESERVED_254 254 /* Reserved */ |
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[39e6e65a] | 251 | /* 255: Reserved */ |
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[657e6c93] | 252 | /* BSD Private, local use, namespace incursion, no longer used */ |
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| 253 | #define IPPROTO_OLD_DIVERT 254 /* OLD divert pseudo-proto */ |
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[39e6e65a] | 254 | #define IPPROTO_MAX 256 |
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| 255 | |
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[657e6c93] | 256 | /* last return value of *_input(), meaning "all job for this pkt is done". */ |
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| 257 | #define IPPROTO_DONE 257 |
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| 258 | |
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| 259 | /* Only used internally, so can be outside the range of valid IP protocols. */ |
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| 260 | #define IPPROTO_DIVERT 258 /* divert pseudo-protocol */ |
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| 261 | #define IPPROTO_SEND 259 /* SeND pseudo-protocol */ |
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| 262 | |
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[ef6d9efb] | 263 | /* |
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[657e6c93] | 264 | * Defined to avoid confusion. The master value is defined by |
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| 265 | * PROTO_SPACER in sys/protosw.h. |
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[ef6d9efb] | 266 | */ |
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[657e6c93] | 267 | #define IPPROTO_SPACER 32767 /* spacer for loadable protos */ |
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[39e6e65a] | 268 | |
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| 269 | /* |
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| 270 | * Local port number conventions: |
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| 271 | * |
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| 272 | * When a user does a bind(2) or connect(2) with a port number of zero, |
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| 273 | * a non-conflicting local port address is chosen. |
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[5fce938] | 274 | * The default range is IPPORT_HIFIRSTAUTO through |
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| 275 | * IPPORT_HILASTAUTO, although that is settable by sysctl. |
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[39e6e65a] | 276 | * |
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| 277 | * A user may set the IPPROTO_IP option IP_PORTRANGE to change this |
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| 278 | * default assignment range. |
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| 279 | * |
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| 280 | * The value IP_PORTRANGE_DEFAULT causes the default behavior. |
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| 281 | * |
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| 282 | * The value IP_PORTRANGE_HIGH changes the range of candidate port numbers |
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| 283 | * into the "high" range. These are reserved for client outbound connections |
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[004092e] | 284 | * which do not want to be filtered by any firewalls. |
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[39e6e65a] | 285 | * |
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| 286 | * The value IP_PORTRANGE_LOW changes the range to the "low" are |
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| 287 | * that is (by convention) restricted to privileged processes. This |
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| 288 | * convention is based on "vouchsafe" principles only. It is only secure |
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| 289 | * if you trust the remote host to restrict these ports. |
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| 290 | * |
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| 291 | * The default range of ports and the high range can be changed by |
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| 292 | * sysctl(3). (net.inet.ip.port{hi,low}{first,last}_auto) |
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| 293 | * |
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| 294 | * Changing those values has bad security implications if you are |
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[5fce938] | 295 | * using a stateless firewall that is allowing packets outside of that |
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[39e6e65a] | 296 | * range in order to allow transparent outgoing connections. |
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| 297 | * |
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| 298 | * Such a firewall configuration will generally depend on the use of these |
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| 299 | * default values. If you change them, you may find your Security |
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| 300 | * Administrator looking for you with a heavy object. |
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[657e6c93] | 301 | * |
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| 302 | * For a slightly more orthodox text view on this: |
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| 303 | * |
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| 304 | * ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers |
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| 305 | * |
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| 306 | * port numbers are divided into three ranges: |
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| 307 | * |
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| 308 | * 0 - 1023 Well Known Ports |
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| 309 | * 1024 - 49151 Registered Ports |
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| 310 | * 49152 - 65535 Dynamic and/or Private Ports |
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| 311 | * |
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[39e6e65a] | 312 | */ |
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| 313 | |
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| 314 | /* |
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| 315 | * Ports < IPPORT_RESERVED are reserved for |
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| 316 | * privileged processes (e.g. root). (IP_PORTRANGE_LOW) |
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| 317 | */ |
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| 318 | #define IPPORT_RESERVED 1024 |
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| 319 | |
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| 320 | /* |
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[657e6c93] | 321 | * Default local port range, used by IP_PORTRANGE_DEFAULT |
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| 322 | */ |
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| 323 | #define IPPORT_EPHEMERALFIRST 10000 |
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| 324 | #define IPPORT_EPHEMERALLAST 65535 |
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| 325 | |
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| 326 | /* |
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| 327 | * Dynamic port range, used by IP_PORTRANGE_HIGH. |
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[39e6e65a] | 328 | */ |
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[657e6c93] | 329 | #define IPPORT_HIFIRSTAUTO 49152 |
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| 330 | #define IPPORT_HILASTAUTO 65535 |
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[39e6e65a] | 331 | |
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| 332 | /* |
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| 333 | * Scanning for a free reserved port return a value below IPPORT_RESERVED, |
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| 334 | * but higher than IPPORT_RESERVEDSTART. Traditionally the start value was |
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| 335 | * 512, but that conflicts with some well-known-services that firewalls may |
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| 336 | * have a fit if we use. |
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| 337 | */ |
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[657e6c93] | 338 | #define IPPORT_RESERVEDSTART 600 |
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| 339 | |
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| 340 | #define IPPORT_MAX 65535 |
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| 341 | |
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[39e6e65a] | 342 | /* |
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| 343 | * Definitions of bits in internet address integers. |
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| 344 | * On subnets, the decomposition of addresses to host and net parts |
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| 345 | * is done according to subnet mask, not the masks here. |
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| 346 | */ |
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[657e6c93] | 347 | #define IN_CLASSA(i) (((in_addr_t)(i) & 0x80000000) == 0) |
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[39e6e65a] | 348 | #define IN_CLASSA_NET 0xff000000 |
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| 349 | #define IN_CLASSA_NSHIFT 24 |
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| 350 | #define IN_CLASSA_HOST 0x00ffffff |
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| 351 | #define IN_CLASSA_MAX 128 |
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| 352 | |
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[657e6c93] | 353 | #define IN_CLASSB(i) (((in_addr_t)(i) & 0xc0000000) == 0x80000000) |
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[39e6e65a] | 354 | #define IN_CLASSB_NET 0xffff0000 |
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| 355 | #define IN_CLASSB_NSHIFT 16 |
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| 356 | #define IN_CLASSB_HOST 0x0000ffff |
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| 357 | #define IN_CLASSB_MAX 65536 |
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| 358 | |
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[657e6c93] | 359 | #define IN_CLASSC(i) (((in_addr_t)(i) & 0xe0000000) == 0xc0000000) |
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[39e6e65a] | 360 | #define IN_CLASSC_NET 0xffffff00 |
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| 361 | #define IN_CLASSC_NSHIFT 8 |
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| 362 | #define IN_CLASSC_HOST 0x000000ff |
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| 363 | |
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[657e6c93] | 364 | #define IN_CLASSD(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000) |
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[39e6e65a] | 365 | #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */ |
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| 366 | #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */ |
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| 367 | #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */ |
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| 368 | #define IN_MULTICAST(i) IN_CLASSD(i) |
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| 369 | |
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[657e6c93] | 370 | #define IN_EXPERIMENTAL(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) |
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| 371 | #define IN_BADCLASS(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) |
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| 372 | |
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| 373 | #define IN_LINKLOCAL(i) (((in_addr_t)(i) & 0xffff0000) == 0xa9fe0000) |
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| 374 | #define IN_LOOPBACK(i) (((in_addr_t)(i) & 0xff000000) == 0x7f000000) |
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| 375 | #define IN_ZERONET(i) (((in_addr_t)(i) & 0xff000000) == 0) |
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| 376 | |
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| 377 | #define IN_PRIVATE(i) ((((in_addr_t)(i) & 0xff000000) == 0x0a000000) || \ |
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| 378 | (((in_addr_t)(i) & 0xfff00000) == 0xac100000) || \ |
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| 379 | (((in_addr_t)(i) & 0xffff0000) == 0xc0a80000)) |
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| 380 | |
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| 381 | #define IN_LOCAL_GROUP(i) (((in_addr_t)(i) & 0xffffff00) == 0xe0000000) |
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| 382 | |
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| 383 | #define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i)) |
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[39e6e65a] | 384 | |
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[657e6c93] | 385 | #define INADDR_LOOPBACK ((in_addr_t)0x7f000001) |
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[dc28f16] | 386 | #ifndef _KERNEL |
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[657e6c93] | 387 | #define INADDR_NONE ((in_addr_t)0xffffffff) /* -1 return */ |
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[39e6e65a] | 388 | #endif |
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| 389 | |
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[657e6c93] | 390 | #define INADDR_UNSPEC_GROUP ((in_addr_t)0xe0000000) /* 224.0.0.0 */ |
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| 391 | #define INADDR_ALLHOSTS_GROUP ((in_addr_t)0xe0000001) /* 224.0.0.1 */ |
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| 392 | #define INADDR_ALLRTRS_GROUP ((in_addr_t)0xe0000002) /* 224.0.0.2 */ |
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| 393 | #define INADDR_ALLRPTS_GROUP ((in_addr_t)0xe0000016) /* 224.0.0.22, IGMPv3 */ |
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| 394 | #define INADDR_CARP_GROUP ((in_addr_t)0xe0000012) /* 224.0.0.18 */ |
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| 395 | #define INADDR_PFSYNC_GROUP ((in_addr_t)0xe00000f0) /* 224.0.0.240 */ |
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| 396 | #define INADDR_ALLMDNS_GROUP ((in_addr_t)0xe00000fb) /* 224.0.0.251 */ |
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| 397 | #define INADDR_MAX_LOCAL_GROUP ((in_addr_t)0xe00000ff) /* 224.0.0.255 */ |
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[39e6e65a] | 398 | |
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[657e6c93] | 399 | #define IN_LOOPBACKNET 127 /* official! */ |
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| 400 | |
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| 401 | #define IN_RFC3021_MASK ((in_addr_t)0xfffffffe) |
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[39e6e65a] | 402 | |
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| 403 | /* |
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| 404 | * Options for use with [gs]etsockopt at the IP level. |
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| 405 | * First word of comment is data type; bool is stored in int. |
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| 406 | */ |
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| 407 | #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ |
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| 408 | #define IP_HDRINCL 2 /* int; header is included with data */ |
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| 409 | #define IP_TOS 3 /* int; IP type of service and preced. */ |
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| 410 | #define IP_TTL 4 /* int; IP time to live */ |
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| 411 | #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ |
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| 412 | #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ |
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| 413 | #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ |
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[4c92297a] | 414 | #define IP_SENDSRCADDR IP_RECVDSTADDR /* cmsg_type to set src addr */ |
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[39e6e65a] | 415 | #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ |
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[657e6c93] | 416 | #define IP_MULTICAST_IF 9 /* struct in_addr *or* struct ip_mreqn; |
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| 417 | * set/get IP multicast i/f */ |
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[39e6e65a] | 418 | #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ |
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| 419 | #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ |
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| 420 | #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ |
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| 421 | #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ |
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[657e6c93] | 422 | #define IP_MULTICAST_VIF 14 /* set/get IP mcast virt. iface */ |
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| 423 | #define IP_RSVP_ON 15 /* enable RSVP in kernel */ |
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| 424 | #define IP_RSVP_OFF 16 /* disable RSVP in kernel */ |
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| 425 | #define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ |
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| 426 | #define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ |
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| 427 | #define IP_PORTRANGE 19 /* int; range to choose for unspec port */ |
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[39e6e65a] | 428 | #define IP_RECVIF 20 /* bool; receive reception if w/dgram */ |
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[657e6c93] | 429 | /* for IPSEC */ |
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| 430 | #define IP_IPSEC_POLICY 21 /* int; set/get security policy */ |
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| 431 | /* unused; was IP_FAITH */ |
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| 432 | #define IP_ONESBCAST 23 /* bool: send all-ones broadcast */ |
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| 433 | #define IP_BINDANY 24 /* bool: allow bind to any address */ |
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| 434 | #define IP_BINDMULTI 25 /* bool: allow multiple listeners on a tuple */ |
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| 435 | #define IP_RSS_LISTEN_BUCKET 26 /* int; set RSS listen bucket */ |
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[39e6e65a] | 436 | |
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[657e6c93] | 437 | /* |
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| 438 | * Options for controlling the firewall and dummynet. |
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| 439 | * Historical options (from 40 to 64) will eventually be |
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| 440 | * replaced by only two options, IP_FW3 and IP_DUMMYNET3. |
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| 441 | */ |
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| 442 | #define IP_FW_TABLE_ADD 40 /* add entry */ |
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| 443 | #define IP_FW_TABLE_DEL 41 /* delete entry */ |
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| 444 | #define IP_FW_TABLE_FLUSH 42 /* flush table */ |
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| 445 | #define IP_FW_TABLE_GETSIZE 43 /* get table size */ |
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| 446 | #define IP_FW_TABLE_LIST 44 /* list table contents */ |
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| 447 | |
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| 448 | #define IP_FW3 48 /* generic ipfw v.3 sockopts */ |
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| 449 | #define IP_DUMMYNET3 49 /* generic dummynet v.3 sockopts */ |
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| 450 | |
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| 451 | #define IP_FW_ADD 50 /* add a firewall rule to chain */ |
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| 452 | #define IP_FW_DEL 51 /* delete a firewall rule from chain */ |
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| 453 | #define IP_FW_FLUSH 52 /* flush firewall rule chain */ |
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| 454 | #define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */ |
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| 455 | #define IP_FW_GET 54 /* get entire firewall rule chain */ |
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| 456 | #define IP_FW_RESETLOG 55 /* reset logging counters */ |
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| 457 | |
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| 458 | #define IP_FW_NAT_CFG 56 /* add/config a nat rule */ |
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| 459 | #define IP_FW_NAT_DEL 57 /* delete a nat rule */ |
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| 460 | #define IP_FW_NAT_GET_CONFIG 58 /* get configuration of a nat rule */ |
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| 461 | #define IP_FW_NAT_GET_LOG 59 /* get log of a nat rule */ |
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| 462 | |
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| 463 | #define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */ |
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| 464 | #define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */ |
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| 465 | #define IP_DUMMYNET_FLUSH 62 /* flush dummynet */ |
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| 466 | #define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */ |
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| 467 | |
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| 468 | #define IP_RECVTTL 65 /* bool; receive IP TTL w/dgram */ |
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| 469 | #define IP_MINTTL 66 /* minimum TTL for packet or drop */ |
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| 470 | #define IP_DONTFRAG 67 /* don't fragment packet */ |
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| 471 | #define IP_RECVTOS 68 /* bool; receive IP TOS w/dgram */ |
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| 472 | |
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| 473 | /* IPv4 Source Filter Multicast API [RFC3678] */ |
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| 474 | #define IP_ADD_SOURCE_MEMBERSHIP 70 /* join a source-specific group */ |
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| 475 | #define IP_DROP_SOURCE_MEMBERSHIP 71 /* drop a single source */ |
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| 476 | #define IP_BLOCK_SOURCE 72 /* block a source */ |
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| 477 | #define IP_UNBLOCK_SOURCE 73 /* unblock a source */ |
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| 478 | |
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| 479 | /* The following option is private; do not use it from user applications. */ |
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| 480 | #define IP_MSFILTER 74 /* set/get filter list */ |
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| 481 | |
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| 482 | /* Protocol Independent Multicast API [RFC3678] */ |
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| 483 | #define MCAST_JOIN_GROUP 80 /* join an any-source group */ |
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| 484 | #define MCAST_LEAVE_GROUP 81 /* leave all sources for group */ |
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| 485 | #define MCAST_JOIN_SOURCE_GROUP 82 /* join a source-specific group */ |
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| 486 | #define MCAST_LEAVE_SOURCE_GROUP 83 /* leave a single source */ |
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| 487 | #define MCAST_BLOCK_SOURCE 84 /* block a source */ |
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| 488 | #define MCAST_UNBLOCK_SOURCE 85 /* unblock a source */ |
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| 489 | |
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| 490 | /* Flow and RSS definitions */ |
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| 491 | #define IP_FLOWID 90 /* get flow id for the given socket/inp */ |
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| 492 | #define IP_FLOWTYPE 91 /* get flow type (M_HASHTYPE) */ |
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| 493 | #define IP_RSSBUCKETID 92 /* get RSS flowid -> bucket mapping */ |
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| 494 | #define IP_RECVFLOWID 93 /* bool; receive IP flowid/flowtype w/ datagram */ |
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| 495 | #define IP_RECVRSSBUCKETID 94 /* bool; receive IP RSS bucket id w/ datagram */ |
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[39e6e65a] | 496 | |
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| 497 | /* |
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| 498 | * Defaults and limits for options |
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| 499 | */ |
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| 500 | #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ |
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| 501 | #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ |
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[657e6c93] | 502 | |
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| 503 | /* |
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| 504 | * The imo_membership vector for each socket is now dynamically allocated at |
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| 505 | * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized |
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| 506 | * according to a power-of-two increment. |
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| 507 | */ |
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| 508 | #define IP_MIN_MEMBERSHIPS 31 |
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| 509 | #define IP_MAX_MEMBERSHIPS 4095 |
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| 510 | #define IP_MAX_SOURCE_FILTER 1024 /* XXX to be unused */ |
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| 511 | |
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| 512 | /* |
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| 513 | * Default resource limits for IPv4 multicast source filtering. |
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| 514 | * These may be modified by sysctl. |
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| 515 | */ |
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| 516 | #define IP_MAX_GROUP_SRC_FILTER 512 /* sources per group */ |
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| 517 | #define IP_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ |
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| 518 | #define IP_MAX_SOCK_MUTE_FILTER 128 /* XXX no longer used */ |
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[39e6e65a] | 519 | |
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| 520 | /* |
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| 521 | * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. |
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| 522 | */ |
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| 523 | struct ip_mreq { |
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| 524 | struct in_addr imr_multiaddr; /* IP multicast address of group */ |
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| 525 | struct in_addr imr_interface; /* local IP address of interface */ |
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| 526 | }; |
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| 527 | |
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[657e6c93] | 528 | /* |
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| 529 | * Modified argument structure for IP_MULTICAST_IF, obtained from Linux. |
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| 530 | * This is used to specify an interface index for multicast sends, as |
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| 531 | * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available). |
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| 532 | */ |
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| 533 | struct ip_mreqn { |
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| 534 | struct in_addr imr_multiaddr; /* IP multicast address of group */ |
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| 535 | struct in_addr imr_address; /* local IP address of interface */ |
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| 536 | int imr_ifindex; /* Interface index; cast to uint32_t */ |
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| 537 | }; |
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| 538 | |
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| 539 | /* |
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| 540 | * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678] |
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| 541 | */ |
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| 542 | struct ip_mreq_source { |
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| 543 | struct in_addr imr_multiaddr; /* IP multicast address of group */ |
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| 544 | struct in_addr imr_sourceaddr; /* IP address of source */ |
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| 545 | struct in_addr imr_interface; /* local IP address of interface */ |
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| 546 | }; |
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| 547 | |
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| 548 | /* |
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| 549 | * Argument structures for Protocol-Independent Multicast Source |
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| 550 | * Filter APIs. [RFC3678] |
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| 551 | */ |
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| 552 | struct group_req { |
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| 553 | uint32_t gr_interface; /* interface index */ |
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| 554 | struct sockaddr_storage gr_group; /* group address */ |
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| 555 | }; |
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| 556 | |
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| 557 | struct group_source_req { |
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| 558 | uint32_t gsr_interface; /* interface index */ |
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| 559 | struct sockaddr_storage gsr_group; /* group address */ |
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| 560 | struct sockaddr_storage gsr_source; /* source address */ |
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| 561 | }; |
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| 562 | |
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| 563 | #ifndef __MSFILTERREQ_DEFINED |
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| 564 | #define __MSFILTERREQ_DEFINED |
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| 565 | /* |
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| 566 | * The following structure is private; do not use it from user applications. |
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| 567 | * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between |
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| 568 | * the RFC 3678 libc functions and the kernel. |
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| 569 | */ |
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| 570 | struct __msfilterreq { |
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| 571 | uint32_t msfr_ifindex; /* interface index */ |
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| 572 | uint32_t msfr_fmode; /* filter mode for group */ |
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| 573 | uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ |
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| 574 | struct sockaddr_storage msfr_group; /* group address */ |
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| 575 | struct sockaddr_storage *msfr_srcs; /* pointer to the first member |
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| 576 | * of a contiguous array of |
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| 577 | * sources to filter in full. |
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| 578 | */ |
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| 579 | }; |
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| 580 | #endif |
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| 581 | |
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| 582 | struct sockaddr; |
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| 583 | |
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| 584 | /* |
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| 585 | * Advanced (Full-state) APIs [RFC3678] |
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| 586 | * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter(). |
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| 587 | * We use uint32_t here to be consistent. |
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| 588 | */ |
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| 589 | int setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t, |
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| 590 | uint32_t, struct in_addr *); |
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| 591 | int getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *, |
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| 592 | uint32_t *, struct in_addr *); |
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| 593 | int setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, |
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| 594 | uint32_t, uint32_t, struct sockaddr_storage *); |
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| 595 | int getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, |
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| 596 | uint32_t *, uint32_t *, struct sockaddr_storage *); |
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| 597 | |
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| 598 | /* |
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| 599 | * Filter modes; also used to represent per-socket filter mode internally. |
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| 600 | */ |
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| 601 | #define MCAST_UNDEFINED 0 /* fmode: not yet defined */ |
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| 602 | #define MCAST_INCLUDE 1 /* fmode: include these source(s) */ |
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| 603 | #define MCAST_EXCLUDE 2 /* fmode: exclude these source(s) */ |
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| 604 | |
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[39e6e65a] | 605 | /* |
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| 606 | * Argument for IP_PORTRANGE: |
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| 607 | * - which range to search when port is unspecified at bind() or connect() |
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| 608 | */ |
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| 609 | #define IP_PORTRANGE_DEFAULT 0 /* default range */ |
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| 610 | #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ |
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| 611 | #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ |
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| 612 | |
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| 613 | /* |
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[657e6c93] | 614 | * Identifiers for IP sysctl nodes |
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[39e6e65a] | 615 | */ |
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| 616 | #define IPCTL_FORWARDING 1 /* act as router */ |
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| 617 | #define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */ |
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| 618 | #define IPCTL_DEFTTL 3 /* default TTL */ |
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| 619 | #ifdef notyet |
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| 620 | #define IPCTL_DEFMTU 4 /* default MTU */ |
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| 621 | #endif |
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[657e6c93] | 622 | /* IPCTL_RTEXPIRE 5 deprecated */ |
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| 623 | /* IPCTL_RTMINEXPIRE 6 deprecated */ |
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| 624 | /* IPCTL_RTMAXCACHE 7 deprecated */ |
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[39e6e65a] | 625 | #define IPCTL_SOURCEROUTE 8 /* may perform source routes */ |
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| 626 | #define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */ |
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[657e6c93] | 627 | #define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */ |
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| 628 | #define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ |
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| 629 | #define IPCTL_STATS 12 /* ipstat structure */ |
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[39e6e65a] | 630 | #define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */ |
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[657e6c93] | 631 | #define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ |
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| 632 | /* 15, unused, was: IPCTL_KEEPFAITH */ |
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| 633 | #define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ |
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[39e6e65a] | 634 | |
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[657e6c93] | 635 | #endif /* __BSD_VISIBLE */ |
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[39e6e65a] | 636 | |
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[dc28f16] | 637 | #ifdef _KERNEL |
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[004092e] | 638 | |
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[39e6e65a] | 639 | struct ifnet; struct mbuf; /* forward declarations for Standard C */ |
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| 640 | |
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[d74c13b] | 641 | int in_broadcast(struct in_addr, struct ifnet *); |
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| 642 | int in_canforward(struct in_addr); |
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| 643 | int in_localaddr(struct in_addr); |
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[657e6c93] | 644 | int in_localip(struct in_addr); |
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| 645 | int in_ifhasaddr(struct ifnet *, struct in_addr); |
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| 646 | int inet_aton(const char *, struct in_addr *); /* in libkern */ |
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| 647 | char *inet_ntoa(struct in_addr); /* in libkern */ |
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| 648 | char *inet_ntoa_r(struct in_addr ina, char *buf); /* in libkern */ |
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| 649 | char *inet_ntop(int, const void *, char *, socklen_t); /* in libkern */ |
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| 650 | int inet_pton(int af, const char *, void *); /* in libkern */ |
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| 651 | void in_ifdetach(struct ifnet *); |
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| 652 | |
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| 653 | #define in_hosteq(s, t) ((s).s_addr == (t).s_addr) |
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| 654 | #define in_nullhost(x) ((x).s_addr == INADDR_ANY) |
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| 655 | #define in_allhosts(x) ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP)) |
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| 656 | |
---|
| 657 | #define satosin(sa) ((struct sockaddr_in *)(sa)) |
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| 658 | #define sintosa(sin) ((struct sockaddr *)(sin)) |
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| 659 | #define ifatoia(ifa) ((struct in_ifaddr *)(ifa)) |
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[dc28f16] | 660 | #endif /* _KERNEL */ |
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[39e6e65a] | 661 | |
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[657e6c93] | 662 | /* INET6 stuff */ |
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| 663 | #if __POSIX_VISIBLE >= 200112 |
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| 664 | #define __KAME_NETINET_IN_H_INCLUDED_ |
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| 665 | #include <netinet6/in6.h> |
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| 666 | #undef __KAME_NETINET_IN_H_INCLUDED_ |
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| 667 | #endif |
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| 668 | |
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[4c92297a] | 669 | #endif /* !_NETINET_IN_H_*/ |
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