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This file is part of the GNU C Library.

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The GNU C Library is free software; you can redistribute it and/or

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modify it under the terms of the GNU Lesser General Public

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License as published by the Free Software Foundation; either

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version 2.1 of the License, or (at your option) any later version.

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The GNU C Library is distributed in the hope that it will be useful,

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but WITHOUT ANY WARRANTY; without even the implied warranty of

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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

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Lesser General Public License for more details.

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You should have received a copy of the GNU Lesser General Public

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License along with the GNU C Library; if not, see

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<http://www.gnu.org/licenses/>. */

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#ifndef _NETINET_IN_H

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#define _NETINET_IN_H 1

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#include <features.h>

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#include <bits/stdint-uintn.h>

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#include <sys/socket.h>

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#include <bits/types.h>

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__BEGIN_DECLS

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/* Internet address. */

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typedef uint32_t in_addr_t;

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struct in_addr

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{

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in_addr_t s_addr;

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};

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/* Get system-specific definitions. */

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#include <bits/in.h>

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/* Standard well-defined IP protocols. */

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enum

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{

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IPPROTO_IP = 0, /* Dummy protocol for TCP. */

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#define IPPROTO_IP IPPROTO_IP

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IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */

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#define IPPROTO_ICMP IPPROTO_ICMP

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IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */

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#define IPPROTO_IGMP IPPROTO_IGMP

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IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */

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#define IPPROTO_IPIP IPPROTO_IPIP

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IPPROTO_TCP = 6, /* Transmission Control Protocol. */

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#define IPPROTO_TCP IPPROTO_TCP

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IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */

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#define IPPROTO_EGP IPPROTO_EGP

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IPPROTO_PUP = 12, /* PUP protocol. */

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#define IPPROTO_PUP IPPROTO_PUP

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IPPROTO_UDP = 17, /* User Datagram Protocol. */

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#define IPPROTO_UDP IPPROTO_UDP

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IPPROTO_IDP = 22, /* XNS IDP protocol. */

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#define IPPROTO_IDP IPPROTO_IDP

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IPPROTO_TP = 29, /* SO Transport Protocol Class 4. */

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#define IPPROTO_TP IPPROTO_TP

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IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol. */

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#define IPPROTO_DCCP IPPROTO_DCCP

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IPPROTO_IPV6 = 41, /* IPv6 header. */

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#define IPPROTO_IPV6 IPPROTO_IPV6

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IPPROTO_RSVP = 46, /* Reservation Protocol. */

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#define IPPROTO_RSVP IPPROTO_RSVP

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IPPROTO_GRE = 47, /* General Routing Encapsulation. */

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#define IPPROTO_GRE IPPROTO_GRE

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IPPROTO_ESP = 50, /* encapsulating security payload. */

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#define IPPROTO_ESP IPPROTO_ESP

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IPPROTO_AH = 51, /* authentication header. */

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#define IPPROTO_AH IPPROTO_AH

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IPPROTO_MTP = 92, /* Multicast Transport Protocol. */

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#define IPPROTO_MTP IPPROTO_MTP

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IPPROTO_BEETPH = 94, /* IP option pseudo header for BEET. */

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#define IPPROTO_BEETPH IPPROTO_BEETPH

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IPPROTO_ENCAP = 98, /* Encapsulation Header. */

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#define IPPROTO_ENCAP IPPROTO_ENCAP

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IPPROTO_PIM = 103, /* Protocol Independent Multicast. */

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#define IPPROTO_PIM IPPROTO_PIM

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IPPROTO_COMP = 108, /* Compression Header Protocol. */

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#define IPPROTO_COMP IPPROTO_COMP

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IPPROTO_SCTP = 132, /* Stream Control Transmission Protocol. */

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#define IPPROTO_SCTP IPPROTO_SCTP

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IPPROTO_UDPLITE = 136, /* UDP-Lite protocol. */

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#define IPPROTO_UDPLITE IPPROTO_UDPLITE

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IPPROTO_MPLS = 137, /* MPLS in IP. */

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#define IPPROTO_MPLS IPPROTO_MPLS

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IPPROTO_ETHERNET = 143, /* Ethernet-within-IPv6 Encapsulation. */

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#define IPPROTO_ETHERNET IPPROTO_ETHERNET

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IPPROTO_RAW = 255, /* Raw IP packets. */

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#define IPPROTO_RAW IPPROTO_RAW

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IPPROTO_MPTCP = 262, /* Multipath TCP connection. */

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#define IPPROTO_MPTCP IPPROTO_MPTCP

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IPPROTO_MAX

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};

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/* If __USE_KERNEL_IPV6_DEFS is 1 then the user has included the kernel

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network headers first and we should use those ABI-identical definitions

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instead of our own, otherwise 0. */

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#if !__USE_KERNEL_IPV6_DEFS

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enum

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{

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IPPROTO_HOPOPTS = 0, /* IPv6 Hop-by-Hop options. */

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#define IPPROTO_HOPOPTS IPPROTO_HOPOPTS

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IPPROTO_ROUTING = 43, /* IPv6 routing header. */

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#define IPPROTO_ROUTING IPPROTO_ROUTING

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IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header. */

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#define IPPROTO_FRAGMENT IPPROTO_FRAGMENT

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IPPROTO_ICMPV6 = 58, /* ICMPv6. */

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#define IPPROTO_ICMPV6 IPPROTO_ICMPV6

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IPPROTO_NONE = 59, /* IPv6 no next header. */

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#define IPPROTO_NONE IPPROTO_NONE

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IPPROTO_DSTOPTS = 60, /* IPv6 destination options. */

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#define IPPROTO_DSTOPTS IPPROTO_DSTOPTS

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IPPROTO_MH = 135 /* IPv6 mobility header. */

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#define IPPROTO_MH IPPROTO_MH

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};

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#endif /* !__USE_KERNEL_IPV6_DEFS */

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/* Type to represent a port. */

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typedef uint16_t in_port_t;

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/* Standard well-known ports. */

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enum

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{

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IPPORT_ECHO = 7, /* Echo service. */

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IPPORT_DISCARD = 9, /* Discard transmissions service. */

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IPPORT_SYSTAT = 11, /* System status service. */

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IPPORT_DAYTIME = 13, /* Time of day service. */

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IPPORT_NETSTAT = 15, /* Network status service. */

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IPPORT_FTP = 21, /* File Transfer Protocol. */

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IPPORT_TELNET = 23, /* Telnet protocol. */

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IPPORT_SMTP = 25, /* Simple Mail Transfer Protocol. */

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IPPORT_TIMESERVER = 37, /* Timeserver service. */

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IPPORT_NAMESERVER = 42, /* Domain Name Service. */

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IPPORT_WHOIS = 43, /* Internet Whois service. */

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IPPORT_MTP = 57,

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IPPORT_TFTP = 69, /* Trivial File Transfer Protocol. */

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IPPORT_RJE = 77,

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IPPORT_FINGER = 79, /* Finger service. */

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IPPORT_TTYLINK = 87,

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IPPORT_SUPDUP = 95, /* SUPDUP protocol. */

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IPPORT_EXECSERVER = 512, /* execd service. */

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IPPORT_LOGINSERVER = 513, /* rlogind service. */

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IPPORT_CMDSERVER = 514,

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IPPORT_EFSSERVER = 520,

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/* UDP ports. */

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IPPORT_BIFFUDP = 512,

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IPPORT_WHOSERVER = 513,

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IPPORT_ROUTESERVER = 520,

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/* Ports less than this value are reserved for privileged processes. */

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IPPORT_RESERVED = 1024,

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/* Ports greater this value are reserved for (non-privileged) servers. */

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IPPORT_USERRESERVED = 5000

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};

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/* Definitions of the bits in an Internet address integer.

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On subnets, host and network parts are found according to

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the subnet mask, not these masks. */

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#define IN_CLASSA(a) ((((in_addr_t)(a)) & 0x80000000) == 0)

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#define IN_CLASSA_NET 0xff000000

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#define IN_CLASSA_NSHIFT 24

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#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)

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#define IN_CLASSA_MAX 128

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#define IN_CLASSB(a) ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000)

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#define IN_CLASSB_NET 0xffff0000

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#define IN_CLASSB_NSHIFT 16

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#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)

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#define IN_CLASSB_MAX 65536

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#define IN_CLASSC(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000)

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#define IN_CLASSC_NET 0xffffff00

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#define IN_CLASSC_NSHIFT 8

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#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)

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#define IN_CLASSD(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000)

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#define IN_MULTICAST(a) IN_CLASSD(a)

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#define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000)

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#define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000)

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/* Address to accept any incoming messages. */

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#define INADDR_ANY ((in_addr_t) 0x00000000)

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/* Address to send to all hosts. */

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#define INADDR_BROADCAST ((in_addr_t) 0xffffffff)

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/* Address indicating an error return. */

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#define INADDR_NONE ((in_addr_t) 0xffffffff)

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/* Network number for local host loopback. */

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#define IN_LOOPBACKNET 127

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/* Address to loopback in software to local host. */

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#ifndef INADDR_LOOPBACK

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# define INADDR_LOOPBACK ((in_addr_t) 0x7f000001) /* Inet 127.0.0.1. */

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#endif

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/* Defines for Multicast INADDR. */

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#define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000) /* 224.0.0.0 */

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#define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001) /* 224.0.0.1 */

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#define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002) /* 224.0.0.2 */

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#define INADDR_ALLSNOOPERS_GROUP ((in_addr_t) 0xe000006a) /* 224.0.0.106 */

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#define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */

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#if !__USE_KERNEL_IPV6_DEFS

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/* IPv6 address */

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struct in6_addr

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{

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union

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{

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uint8_t __u6_addr8[16];

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uint16_t __u6_addr16[8];

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uint32_t __u6_addr32[4];

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} __in6_u;

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#define s6_addr __in6_u.__u6_addr8

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#ifdef __USE_MISC

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# define s6_addr16 __in6_u.__u6_addr16

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# define s6_addr32 __in6_u.__u6_addr32

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#endif

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};

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#endif /* !__USE_KERNEL_IPV6_DEFS */

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extern const struct in6_addr in6addr_any; /* :: */

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extern const struct in6_addr in6addr_loopback; /* ::1 */

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#define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }

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#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }

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#define INET_ADDRSTRLEN 16

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#define INET6_ADDRSTRLEN 46

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/* Structure describing an Internet socket address. */

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struct sockaddr_in

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{

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__SOCKADDR_COMMON (sin_);

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in_port_t sin_port; /* Port number. */

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struct in_addr sin_addr; /* Internet address. */

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/* Pad to size of `struct sockaddr'. */

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unsigned char sin_zero[sizeof (struct sockaddr) -

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__SOCKADDR_COMMON_SIZE -

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sizeof (in_port_t) -

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sizeof (struct in_addr)];

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};

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#if !__USE_KERNEL_IPV6_DEFS

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/* Ditto, for IPv6. */

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struct sockaddr_in6

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{

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__SOCKADDR_COMMON (sin6_);

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in_port_t sin6_port; /* Transport layer port # */

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uint32_t sin6_flowinfo; /* IPv6 flow information */

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struct in6_addr sin6_addr; /* IPv6 address */

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uint32_t sin6_scope_id; /* IPv6 scope-id */

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};

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#endif /* !__USE_KERNEL_IPV6_DEFS */

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#ifdef __USE_MISC

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/* IPv4 multicast request. */

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struct ip_mreq

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{

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/* IP multicast address of group. */

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struct in_addr imr_multiaddr;

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/* Local IP address of interface. */

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struct in_addr imr_interface;

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};

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struct ip_mreq_source

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{

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/* IP multicast address of group. */

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struct in_addr imr_multiaddr;

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/* IP address of interface. */

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struct in_addr imr_interface;

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/* IP address of source. */

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struct in_addr imr_sourceaddr;

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};

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#endif

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#if !__USE_KERNEL_IPV6_DEFS

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/* Likewise, for IPv6. */

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struct ipv6_mreq

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{

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/* IPv6 multicast address of group */

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struct in6_addr ipv6mr_multiaddr;

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/* local interface */

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unsigned int ipv6mr_interface;

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};

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#endif /* !__USE_KERNEL_IPV6_DEFS */

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#ifdef __USE_MISC

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/* Multicast group request. */

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struct group_req

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{

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/* Interface index. */

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uint32_t gr_interface;

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/* Group address. */

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struct sockaddr_storage gr_group;

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};

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struct group_source_req

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{

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/* Interface index. */

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uint32_t gsr_interface;

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/* Group address. */

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struct sockaddr_storage gsr_group;

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/* Source address. */

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struct sockaddr_storage gsr_source;

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};

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/* Full-state filter operations. */

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struct ip_msfilter

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{

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/* IP multicast address of group. */

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struct in_addr imsf_multiaddr;

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/* Local IP address of interface. */

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struct in_addr imsf_interface;

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/* Filter mode. */

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uint32_t imsf_fmode;

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/* Number of source addresses. */

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uint32_t imsf_numsrc;

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/* Source addresses. */

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struct in_addr imsf_slist[1];

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};

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#define IP_MSFILTER_SIZE(numsrc) (sizeof (struct ip_msfilter) \

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- sizeof (struct in_addr) \

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+ (numsrc) * sizeof (struct in_addr))

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struct group_filter

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{

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/* Interface index. */

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uint32_t gf_interface;

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/* Group address. */

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struct sockaddr_storage gf_group;

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/* Filter mode. */

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uint32_t gf_fmode;

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/* Number of source addresses. */

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uint32_t gf_numsrc;

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/* Source addresses. */

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struct sockaddr_storage gf_slist[1];

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};

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#define GROUP_FILTER_SIZE(numsrc) (sizeof (struct group_filter) \

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- sizeof (struct sockaddr_storage) \

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+ ((numsrc) \

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* sizeof (struct sockaddr_storage)))

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#endif

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/* Functions to convert between host and network byte order.

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Please note that these functions normally take `unsigned long int' or

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`unsigned short int' values as arguments and also return them. But

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this was a short-sighted decision since on different systems the types

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may have different representations but the values are always the same. */

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extern uint32_t ntohl (uint32_t __netlong) __THROW __attribute__ ((__const__));

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extern uint16_t ntohs (uint16_t __netshort)

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__THROW __attribute__ ((__const__));

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extern uint32_t htonl (uint32_t __hostlong)

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__THROW __attribute__ ((__const__));

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extern uint16_t htons (uint16_t __hostshort)

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__THROW __attribute__ ((__const__));

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#include <endian.h>

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/* Get machine dependent optimized versions of byte swapping functions. */

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#include <bits/byteswap.h>

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#include <bits/uintn-identity.h>

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#ifdef __OPTIMIZE__

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/* We can optimize calls to the conversion functions. Either nothing has

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to be done or we are using directly the byte-swapping functions which

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often can be inlined. */

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# if __BYTE_ORDER == __BIG_ENDIAN

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/* The host byte order is the same as network byte order,

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so these functions are all just identity. */

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# define ntohl(x) __uint32_identity (x)

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# define ntohs(x) __uint16_identity (x)

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# define htonl(x) __uint32_identity (x)

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# define htons(x) __uint16_identity (x)

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# else

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# if __BYTE_ORDER == __LITTLE_ENDIAN

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# define ntohl(x) __bswap_32 (x)

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# define ntohs(x) __bswap_16 (x)

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# define htonl(x) __bswap_32 (x)

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# define htons(x) __bswap_16 (x)

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# endif

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# endif

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#endif

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#ifdef __GNUC__

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# define IN6_IS_ADDR_UNSPECIFIED(a) \

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(__extension__ \

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({ const struct in6_addr *__a = (const struct in6_addr *) (a); \

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__a->__in6_u.__u6_addr32[0] == 0 \

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&& __a->__in6_u.__u6_addr32[1] == 0 \

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&& __a->__in6_u.__u6_addr32[2] == 0 \

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&& __a->__in6_u.__u6_addr32[3] == 0; }))

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# define IN6_IS_ADDR_LOOPBACK(a) \

[422] Fix | Delete

(__extension__ \

[423] Fix | Delete

({ const struct in6_addr *__a = (const struct in6_addr *) (a); \

[424] Fix | Delete

__a->__in6_u.__u6_addr32[0] == 0 \

[425] Fix | Delete

&& __a->__in6_u.__u6_addr32[1] == 0 \

[426] Fix | Delete

&& __a->__in6_u.__u6_addr32[2] == 0 \

[427] Fix | Delete

&& __a->__in6_u.__u6_addr32[3] == htonl (1); }))

[428] Fix | Delete

[429] Fix | Delete

# define IN6_IS_ADDR_LINKLOCAL(a) \

[430] Fix | Delete

(__extension__ \

[431] Fix | Delete

({ const struct in6_addr *__a = (const struct in6_addr *) (a); \

[432] Fix | Delete

(__a->__in6_u.__u6_addr32[0] & htonl (0xffc00000)) == htonl (0xfe800000); }))

[433] Fix | Delete

[434] Fix | Delete

# define IN6_IS_ADDR_SITELOCAL(a) \

[435] Fix | Delete

(__extension__ \

[436] Fix | Delete

({ const struct in6_addr *__a = (const struct in6_addr *) (a); \

[437] Fix | Delete

(__a->__in6_u.__u6_addr32[0] & htonl (0xffc00000)) == htonl (0xfec00000); }))

[438] Fix | Delete

[439] Fix | Delete

# define IN6_IS_ADDR_V4MAPPED(a) \

[440] Fix | Delete

(__extension__ \

[441] Fix | Delete

({ const struct in6_addr *__a = (const struct in6_addr *) (a); \

[442] Fix | Delete

__a->__in6_u.__u6_addr32[0] == 0 \

[443] Fix | Delete

&& __a->__in6_u.__u6_addr32[1] == 0 \

[444] Fix | Delete

&& __a->__in6_u.__u6_addr32[2] == htonl (0xffff); }))

[445] Fix | Delete

[446] Fix | Delete

# define IN6_IS_ADDR_V4COMPAT(a) \

[447] Fix | Delete

(__extension__ \

[448] Fix | Delete

({ const struct in6_addr *__a = (const struct in6_addr *) (a); \

[449] Fix | Delete

__a->__in6_u.__u6_addr32[0] == 0 \

[450] Fix | Delete

&& __a->__in6_u.__u6_addr32[1] == 0 \

[451] Fix | Delete

&& __a->__in6_u.__u6_addr32[2] == 0 \

[452] Fix | Delete

&& ntohl (__a->__in6_u.__u6_addr32[3]) > 1; }))

[453] Fix | Delete

[454] Fix | Delete

# define IN6_ARE_ADDR_EQUAL(a,b) \

[455] Fix | Delete

(__extension__ \

[456] Fix | Delete

({ const struct in6_addr *__a = (const struct in6_addr *) (a); \

[457] Fix | Delete

const struct in6_addr *__b = (const struct in6_addr *) (b); \

[458] Fix | Delete

__a->__in6_u.__u6_addr32[0] == __b->__in6_u.__u6_addr32[0] \

[459] Fix | Delete

&& __a->__in6_u.__u6_addr32[1] == __b->__in6_u.__u6_addr32[1] \

[460] Fix | Delete

&& __a->__in6_u.__u6_addr32[2] == __b->__in6_u.__u6_addr32[2] \

[461] Fix | Delete

&& __a->__in6_u.__u6_addr32[3] == __b->__in6_u.__u6_addr32[3]; }))

[462] Fix | Delete

#else

[463] Fix | Delete

# define IN6_IS_ADDR_UNSPECIFIED(a) \

[464] Fix | Delete

(((const uint32_t *) (a))[0] == 0 \

[465] Fix | Delete

&& ((const uint32_t *) (a))[1] == 0 \

[466] Fix | Delete

&& ((const uint32_t *) (a))[2] == 0 \

[467] Fix | Delete

&& ((const uint32_t *) (a))[3] == 0)

[468] Fix | Delete

[469] Fix | Delete

# define IN6_IS_ADDR_LOOPBACK(a) \

[470] Fix | Delete

(((const uint32_t *) (a))[0] == 0 \

[471] Fix | Delete

&& ((const uint32_t *) (a))[1] == 0 \

[472] Fix | Delete

&& ((const uint32_t *) (a))[2] == 0 \

[473] Fix | Delete

&& ((const uint32_t *) (a))[3] == htonl (1))

[474] Fix | Delete

[475] Fix | Delete

# define IN6_IS_ADDR_LINKLOCAL(a) \

[476] Fix | Delete

((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \

[477] Fix | Delete

== htonl (0xfe800000))

[478] Fix | Delete

[479] Fix | Delete

# define IN6_IS_ADDR_SITELOCAL(a) \

[480] Fix | Delete

((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \

[481] Fix | Delete

== htonl (0xfec00000))

[482] Fix | Delete

[483] Fix | Delete

# define IN6_IS_ADDR_V4MAPPED(a) \

[484] Fix | Delete

((((const uint32_t *) (a))[0] == 0) \

[485] Fix | Delete

&& (((const uint32_t *) (a))[1] == 0) \

[486] Fix | Delete

&& (((const uint32_t *) (a))[2] == htonl (0xffff)))

[487] Fix | Delete

[488] Fix | Delete

# define IN6_IS_ADDR_V4COMPAT(a) \

[489] Fix | Delete

((((const uint32_t *) (a))[0] == 0) \

[490] Fix | Delete

&& (((const uint32_t *) (a))[1] == 0) \

[491] Fix | Delete

&& (((const uint32_t *) (a))[2] == 0) \

[492] Fix | Delete

&& (ntohl (((const uint32_t *) (a))[3]) > 1))

[493] Fix | Delete

[494] Fix | Delete

# define IN6_ARE_ADDR_EQUAL(a,b) \

[495] Fix | Delete

((((const uint32_t *) (a))[0] == ((const uint32_t *) (b))[0]) \

[496] Fix | Delete

&& (((const uint32_t *) (a))[1] == ((const uint32_t *) (b))[1]) \

[497] Fix | Delete

&& (((const uint32_t *) (a))[2] == ((const uint32_t *) (b))[2]) \

[498] Fix | Delete

&& (((const uint32_t *) (a))[3] == ((const uint32_t *) (b))[3]))

[499] Fix | Delete