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Diffstat (limited to 'inet/netinet/in.h')
| -rw-r--r-- | inet/netinet/in.h | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/inet/netinet/in.h b/inet/netinet/in.h new file mode 100644 index 0000000000..a85dccd6de --- /dev/null +++ b/inet/netinet/in.h @@ -0,0 +1,267 @@ +/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _NETINET_IN_H + +#define _NETINET_IN_H 1 +#include <features.h> + +#include <sys/socket.h> +#include <sys/types.h> + + +__BEGIN_DECLS + +/* Standard well-defined IP protocols. */ +enum + { + IPPROTO_IP = 0, /* Dummy protocol for TCP. */ + IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */ + IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */ + IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */ + IPPROTO_TCP = 6, /* Transmission Control Protocol. */ + IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */ + IPPROTO_PUP = 12, /* PUP protocol. */ + IPPROTO_UDP = 17, /* User Datagram Protocol. */ + IPPROTO_IDP = 22, /* XNS IDP protocol. */ + IPPROTO_IPV6 = 41, /* IPv6-in-IPv4 tunnelling. */ + IPPROTO_ICMPV6 = 58, /* ICMPv6. */ + + IPPROTO_RAW = 255, /* Raw IP packets. */ + IPPROTO_MAX + }; + +/* Standard well-known ports. */ +enum + { + IPPORT_ECHO = 7, /* Echo service. */ + IPPORT_DISCARD = 9, /* Discard transmissions service. */ + IPPORT_SYSTAT = 11, /* System status service. */ + IPPORT_DAYTIME = 13, /* Time of day service. */ + IPPORT_NETSTAT = 15, /* Network status service. */ + IPPORT_FTP = 21, /* File Transfer Protocol. */ + IPPORT_TELNET = 23, /* Telnet protocol. */ + IPPORT_SMTP = 25, /* Simple Mail Transfer Protocol. */ + IPPORT_TIMESERVER = 37, /* Timeserver service. */ + IPPORT_NAMESERVER = 42, /* Domain Name Service. */ + IPPORT_WHOIS = 43, /* Internet Whois service. */ + IPPORT_MTP = 57, + + IPPORT_TFTP = 69, /* Trivial File Transfer Protocol. */ + IPPORT_RJE = 77, + IPPORT_FINGER = 79, /* Finger service. */ + IPPORT_TTYLINK = 87, + IPPORT_SUPDUP = 95, /* SUPDUP protocol. */ + + + IPPORT_EXECSERVER = 512, /* execd service. */ + IPPORT_LOGINSERVER = 513, /* rlogind service. */ + IPPORT_CMDSERVER = 514, + IPPORT_EFSSERVER = 520, + + /* UDP ports. */ + IPPORT_BIFFUDP = 512, + IPPORT_WHOSERVER = 513, + IPPORT_ROUTESERVER = 520, + + /* Ports less than this value are reserved for privileged processes. */ + IPPORT_RESERVED = 1024, + + /* Ports greater this value are reserved for (non-privileged) servers. */ + IPPORT_USERRESERVED = 5000 + }; + + +/* Internet address. */ +struct in_addr + { + unsigned int s_addr; + }; + + +/* Definitions of the bits in an Internet address integer. + + On subnets, host and network parts are found according to + the subnet mask, not these masks. */ + +#define IN_CLASSA(a) ((((unsigned) (a)) & 0x80000000) == 0) +#define IN_CLASSA_NET 0xff000000 +#define IN_CLASSA_NSHIFT 24 +#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) +#define IN_CLASSA_MAX 128 + +#define IN_CLASSB(a) ((((unsigned) (a)) & 0xc0000000) == 0x80000000) +#define IN_CLASSB_NET 0xffff0000 +#define IN_CLASSB_NSHIFT 16 +#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) +#define IN_CLASSB_MAX 65536 + +#define IN_CLASSC(a) ((((unsigned) (a)) & 0xc0000000) == 0xc0000000) +#define IN_CLASSC_NET 0xffffff00 +#define IN_CLASSC_NSHIFT 8 +#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) + +#define IN_CLASSD(a) ((((unsigned) (a)) & 0xf0000000) == 0xe0000000) +#define IN_MULTICAST(a) IN_CLASSD(a) + +#define IN_EXPERIMENTAL(a) ((((unsigned) (a)) & 0xe0000000) == 0xe0000000) +#define IN_BADCLASS(a) ((((unsigned) (a)) & 0xf0000000) == 0xf0000000) + +/* Address to accept any incoming messages. */ +#define INADDR_ANY ((unsigned) 0x00000000) +/* Address to send to all hosts. */ +#define INADDR_BROADCAST ((unsigned) 0xffffffff) +/* Address indicating an error return. */ +#define INADDR_NONE ((unsigned) 0xffffffff) + +/* Network number for local host loopback. */ +#define IN_LOOPBACKNET 127 +/* Address to loopback in software to local host. */ +#ifndef INADDR_LOOPBACK +#define INADDR_LOOPBACK ((unsigned) 0x7f000001) /* Inet address 127.0.0.1. */ +#endif + + +/* IPv6 address */ +struct in6_addr + { + union + { + u_int8_t u6_addr8[16]; + u_int16_t u6_addr16[8]; + u_int32_t u6_addr32[4]; +#if (~0UL) > 0xffffffff + u_int64_t u6_addr64[2]; +#endif + } in6_u; +#define s6_addr in6_u.u6_addr8 +#define s6_addr16 in6_u.u6_addr16 +#define s6_addr32 in6_u.u6_addr32 +#define s6_addr64 in6_u.u6_addr64 + }; + +extern const struct in6_addr in6addr_any; /* :: */ +extern const struct in6_addr in6addr_loopback; /* ::1 */ +#define IN6ADDR_ANY_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } +#define IN6ADDR_LOOPBACK_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } + +#define INET_ADDRSTRLEN 16 +#define INET6_ADDRSTRLEN 46 + +/* Get the definition of the macro to define the common sockaddr members. */ +#include <sockaddrcom.h> + + +/* Structure describing an Internet socket address. */ +struct sockaddr_in + { + __SOCKADDR_COMMON (sin_); + unsigned short int sin_port; /* Port number. */ + struct in_addr sin_addr; /* Internet address. */ + + /* Pad to size of `struct sockaddr'. */ + unsigned char sin_zero[sizeof (struct sockaddr) - + __SOCKADDR_COMMON_SIZE - + sizeof (unsigned short int) - + sizeof (struct in_addr)]; + }; + +/* Ditto, for IPv6. */ +struct sockaddr_in6 + { + __SOCKADDR_COMMON (sin6_); + u_int16_t sin6_port; /* Transport layer port # */ + u_int32_t sin6_flowinfo; /* IPv6 flow information */ + struct in6_addr sin6_addr; /* IPv6 address */ + }; + +/* IPv6 multicast request. */ +struct ipv6_mreq + { + /* IPv6 multicast address of group */ + struct in6_addr ipv6mr_multiaddr; + + /* local IPv6 address of interface */ + int ipv6mr_ifindex; + }; + +/* Get system-specific definitions. */ +#include <netinet/inbits.h> + +/* Functions to convert between host and network byte order. + + Please note that these functions normally take `unsigned long int' or + `unsigned short int' values as arguments and also return them. But + this was a short-sighted decision since on different systems the types + may have different representations but the values are always the same. */ + +extern u_int32_t ntohl __P ((u_int32_t __netlong)); +extern u_int16_t ntohs __P ((u_int16_t __netshort)); +extern u_int32_t htonl __P ((u_int32_t __hostlong)); +extern u_int16_t htons __P ((u_int16_t __hostshort)); + +#include <endian.h> + +#if __BYTE_ORDER == __BIG_ENDIAN +/* The host byte order is the same as network byte order, + so these functions are all just identity. */ +#define ntohl(x) (x) +#define ntohs(x) (x) +#define htonl(x) (x) +#define htons(x) (x) +#endif + +#define IN6_IS_ADDR_UNSPECIFIED(a) \ + ((((u_int32_t *) (a))[0] == 0) && ((u_int32_t *) (a))[1] == 0) && \ + (((u_int32_t *) (a))[2] == 0) && ((u_int32_t *) (a))[3] == 0)) + +#define IN6_IS_ADDR_LOOPBACK(a) \ + ((((u_int32_t *) (a))[0] == 0) && ((u_int32_t *) (a))[1] == 0) && \ + (((u_int32_t *) (a))[2] == 0) && ((u_int32_t *) (a))[3] == htonl (1))) + +#define IN6_IS_ADDR_MULTICAST(a) (((u_int8_t *) (a))[0] == 0xff) + +#define IN6_IS_ADDR_LINKLOCAL(a) \ + ((((u_int32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfe800000)) + +#define IN6_IS_ADDR_SITELOCAL(a) \ + ((((u_int32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfec00000)) + +#define IN6_IS_ADDR_V4MAPPED(a) \ + ((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \ + (((u_int32_t *) (a))[2] == htonl (0xffff))) + +#define IN6_IS_ADDR_V4COMPAT(a) \ + ((((u_int32_t *) (a))[0] == 0) && (((u_int32_t *) (a))[1] == 0) && \ + (((u_int32_t *) (a))[2] == 0) && (ntohl (((u_int32_t *) (a))[3]) > 1)) + + +/* Bind socket to a privileged IP port. */ +extern int bindresvport __P ((int __sockfd, struct sockaddr_in *__sin)); + + +/* IPv6 packet information. */ +struct in6_pktinfo + { + struct in6_addr ipi6_addr; /* src/dst IPv6 address */ + int ipi6_ifindex; /* send/recv interface index */ + }; + +__END_DECLS + +#endif /* netinet/in.h */ |