diff options
Diffstat (limited to 'include/netinet/in.h')
| -rw-r--r-- | include/netinet/in.h | 289 |
1 files changed, 260 insertions, 29 deletions
diff --git a/include/netinet/in.h b/include/netinet/in.h index d666c67ac..3dea92632 100644 --- a/include/netinet/in.h +++ b/include/netinet/in.h @@ -1,29 +1,66 @@ -/* Copyright (C) 1991 Free Software Foundation, Inc. -This file is part of the GNU C Library. +/* Copyright (C) 1991,92,93,94,95,96,97,98,99 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 1, or (at your option) -any later version. + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, 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. + 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 + Library General Public License for more details. -You should have received a copy of the GNU General Public License -along with the GNU C Library; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + 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 <limits.h> +#include <stdint.h> + +#include <sys/types.h> +#include <bits/socket.h> -#include <sys/socket.h> __BEGIN_DECLS +/* Standard well-defined IP protocols. */ +enum + { + IPPROTO_IP = 0, /* Dummy protocol for TCP. */ + IPPROTO_HOPOPTS = 0, /* IPv6 Hop-by-Hop options. */ + 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_TP = 29, /* SO Transport Protocol Class 4. */ + IPPROTO_IPV6 = 41, /* IPv6 header. */ + IPPROTO_ROUTING = 43, /* IPv6 routing header. */ + IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header. */ + IPPROTO_RSVP = 46, /* Reservation Protocol. */ + IPPROTO_GRE = 47, /* General Routing Encapsulation. */ + IPPROTO_ESP = 50, /* encapsulating security payload. */ + IPPROTO_AH = 51, /* authentication header. */ + IPPROTO_ICMPV6 = 58, /* ICMPv6. */ + IPPROTO_NONE = 59, /* IPv6 no next header. */ + IPPROTO_DSTOPTS = 60, /* IPv6 destination options. */ + IPPROTO_MTP = 92, /* Multicast Transport Protocol. */ + IPPROTO_ENCAP = 98, /* Encapsulation Header. */ + IPPROTO_PIM = 103, /* Protocol Independent Multicast. */ + IPPROTO_COMP = 108, /* Compression Header Protocol. */ + IPPROTO_RAW = 255, /* Raw IP packets. */ + IPPROTO_MAX + }; + /* Standard well-known ports. */ enum { @@ -65,23 +102,217 @@ enum }; -/* Link numbers. */ -#define IMPLINK_IP 155 -#define IMPLINK_LOWEXPER 156 -#define IMPLINK_HIGHEXPER 158 +/* Internet address. */ +struct in_addr + { + uint32_t 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) ((((uint32_t) (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) ((((uint32_t) (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) ((((uint32_t) (a)) & 0xe0000000) == 0xc0000000) +#define IN_CLASSC_NET 0xffffff00 +#define IN_CLASSC_NSHIFT 8 +#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) + +#define IN_CLASSD(a) ((((uint32_t) (a)) & 0xf0000000) == 0xe0000000) +#define IN_MULTICAST(a) IN_CLASSD(a) + +#define IN_EXPERIMENTAL(a) ((((uint32_t) (a)) & 0xe0000000) == 0xe0000000) +#define IN_BADCLASS(a) ((((uint32_t) (a)) & 0xf0000000) == 0xf0000000) + +/* Address to accept any incoming messages. */ +#define INADDR_ANY ((uint32_t) 0x00000000) +/* Address to send to all hosts. */ +#define INADDR_BROADCAST ((uint32_t) 0xffffffff) +/* Address indicating an error return. */ +#define INADDR_NONE ((uint32_t) 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 ((uint32_t) 0x7f000001) /* Inet 127.0.0.1. */ +#endif + +/* Defines for Multicast INADDR. */ +#define INADDR_UNSPEC_GROUP ((uint32_t) 0xe0000000) /* 224.0.0.0 */ +#define INADDR_ALLHOSTS_GROUP ((uint32_t) 0xe0000001) /* 224.0.0.1 */ +#define INADDR_ALLRTRS_GROUP ((uint32_t) 0xe0000002) /* 224.0.0.2 */ +#define INADDR_MAX_LOCAL_GROUP ((uint32_t) 0xe00000ff) /* 224.0.0.255 */ + + +/* IPv6 address */ +struct in6_addr + { + union + { + uint8_t u6_addr8[16]; + uint16_t u6_addr16[8]; + uint32_t u6_addr32[4]; +#if ULONG_MAX > 0xffffffff + uint64_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 <bits/sockaddr.h> + + +/* Structure describing an Internet socket address. */ +struct sockaddr_in + { + __SOCKADDR_COMMON (sin_); + uint16_t 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 (uint16_t) - + sizeof (struct in_addr)]; + }; + +/* Ditto, for IPv6. */ +struct sockaddr_in6 + { + __SOCKADDR_COMMON (sin6_); + uint16_t sin6_port; /* Transport layer port # */ + uint32_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 interface */ + unsigned int ipv6mr_interface; + }; + +/* Get system-specific definitions. */ +#include <bits/in.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 uint32_t ntohl __P ((uint32_t __netlong)); +extern uint16_t ntohs __P ((uint16_t __netshort)); +extern uint32_t htonl __P ((uint32_t __hostlong)); +extern uint16_t htons __P ((uint16_t __hostshort)); + +#include <endian.h> + +/* Get machine dependent optimized versions of byte swapping functions. */ +#include <bits/byteswap.h> + +#if __BYTE_ORDER == __BIG_ENDIAN && defined __OPTIMIZE__ +/* 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) +#else +# if __BYTE_ORDER == __LITTLE_ENDIAN && defined __OPTIMIZE__ +# define ntohl(x) __bswap_32 (x) +# define ntohs(x) __bswap_16 (x) +# define htonl(x) __bswap_32 (x) +# define htons(x) __bswap_16 (x) +# endif +#endif + +#define IN6_IS_ADDR_UNSPECIFIED(a) \ + (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \ + ((uint32_t *) (a))[2] == 0 && ((uint32_t *) (a))[3] == 0) +#define IN6_IS_ADDR_LOOPBACK(a) \ + (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \ + ((uint32_t *) (a))[2] == 0 && ((uint32_t *) (a))[3] == htonl (1)) -/* - * Many other definitions have been moved to <linux/in.h>, - * because several parts of the kernel need them. -FvK - */ -#include <linux/in.h> +#define IN6_IS_ADDR_MULTICAST(a) (((u_int8_t *) (a))[0] == 0xff) -/* - * Bind a socket to a privileged IP port - */ -extern int bindresvport __P ((int __sockfd, - struct sockaddr_in * __sin)); +#define IN6_IS_ADDR_LINKLOCAL(a) \ + ((((uint32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfe800000)) + +#define IN6_IS_ADDR_SITELOCAL(a) \ + ((((uint32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfec00000)) + +#define IN6_IS_ADDR_V4MAPPED(a) \ + ((((uint32_t *) (a))[0] == 0) && (((uint32_t *) (a))[1] == 0) && \ + (((uint32_t *) (a))[2] == htonl (0xffff))) + +#define IN6_IS_ADDR_V4COMPAT(a) \ + ((((uint32_t *) (a))[0] == 0) && (((uint32_t *) (a))[1] == 0) && \ + (((uint32_t *) (a))[2] == 0) && (ntohl (((uint32_t *) (a))[3]) > 1)) + +#define IN6_ARE_ADDR_EQUAL(a,b) \ + ((((uint32_t *) (a))[0] == ((uint32_t *) (b))[0]) && \ + (((uint32_t *) (a))[1] == ((uint32_t *) (b))[2]) && \ + (((uint32_t *) (a))[2] == ((uint32_t *) (b))[1]) && \ + (((uint32_t *) (a))[3] == ((uint32_t *) (b))[3])) + +/* Bind socket to a privileged IP port. */ +extern int bindresvport __P ((int __sockfd, struct sockaddr_in *__sock_in)); + + + +#define IN6_IS_ADDR_MC_NODELOCAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0x1)) + +#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0x2)) + +#define IN6_IS_ADDR_MC_SITELOCAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0x5)) + +#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0x8)) + +#define IN6_IS_ADDR_MC_GLOBAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0xe)) + +/* IPv6 packet information. */ +struct in6_pktinfo + { + struct in6_addr ipi6_addr; /* src/dst IPv6 address */ + unsigned int ipi6_ifindex; /* send/recv interface index */ + }; __END_DECLS |