diff options
Diffstat (limited to 'include/netinet/in.h')
| -rw-r--r-- | include/netinet/in.h | 193 |
1 files changed, 121 insertions, 72 deletions
diff --git a/include/netinet/in.h b/include/netinet/in.h index b5a5c7275..26be9ea75 100644 --- a/include/netinet/in.h +++ b/include/netinet/in.h @@ -1,30 +1,27 @@ -/* Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc. +/* Copyright (C) 1991-1999, 2000, 2001 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 Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 - Library General Public License for more details. + Lesser 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. */ + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; 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 <bits/types.h> __BEGIN_DECLS @@ -33,34 +30,64 @@ __BEGIN_DECLS enum { IPPROTO_IP = 0, /* Dummy protocol for TCP. */ +#define IPPROTO_IP IPPROTO_IP IPPROTO_HOPOPTS = 0, /* IPv6 Hop-by-Hop options. */ +#define IPPROTO_HOPOPTS IPPROTO_HOPOPTS IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */ +#define IPPROTO_ICMP IPPROTO_ICMP IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */ +#define IPPROTO_IGMP IPPROTO_IGMP IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */ +#define IPPROTO_IPIP IPPROTO_IPIP IPPROTO_TCP = 6, /* Transmission Control Protocol. */ +#define IPPROTO_TCP IPPROTO_TCP IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */ +#define IPPROTO_EGP IPPROTO_EGP IPPROTO_PUP = 12, /* PUP protocol. */ +#define IPPROTO_PUP IPPROTO_PUP IPPROTO_UDP = 17, /* User Datagram Protocol. */ +#define IPPROTO_UDP IPPROTO_UDP IPPROTO_IDP = 22, /* XNS IDP protocol. */ +#define IPPROTO_IDP IPPROTO_IDP IPPROTO_TP = 29, /* SO Transport Protocol Class 4. */ +#define IPPROTO_TP IPPROTO_TP IPPROTO_IPV6 = 41, /* IPv6 header. */ +#define IPPROTO_IPV6 IPPROTO_IPV6 IPPROTO_ROUTING = 43, /* IPv6 routing header. */ +#define IPPROTO_ROUTING IPPROTO_ROUTING IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header. */ +#define IPPROTO_FRAGMENT IPPROTO_FRAGMENT IPPROTO_RSVP = 46, /* Reservation Protocol. */ +#define IPPROTO_RSVP IPPROTO_RSVP IPPROTO_GRE = 47, /* General Routing Encapsulation. */ +#define IPPROTO_GRE IPPROTO_GRE IPPROTO_ESP = 50, /* encapsulating security payload. */ +#define IPPROTO_ESP IPPROTO_ESP IPPROTO_AH = 51, /* authentication header. */ +#define IPPROTO_AH IPPROTO_AH IPPROTO_ICMPV6 = 58, /* ICMPv6. */ +#define IPPROTO_ICMPV6 IPPROTO_ICMPV6 IPPROTO_NONE = 59, /* IPv6 no next header. */ +#define IPPROTO_NONE IPPROTO_NONE IPPROTO_DSTOPTS = 60, /* IPv6 destination options. */ +#define IPPROTO_DSTOPTS IPPROTO_DSTOPTS IPPROTO_MTP = 92, /* Multicast Transport Protocol. */ +#define IPPROTO_MTP IPPROTO_MTP IPPROTO_ENCAP = 98, /* Encapsulation Header. */ +#define IPPROTO_ENCAP IPPROTO_ENCAP IPPROTO_PIM = 103, /* Protocol Independent Multicast. */ +#define IPPROTO_PIM IPPROTO_PIM IPPROTO_COMP = 108, /* Compression Header Protocol. */ +#define IPPROTO_COMP IPPROTO_COMP IPPROTO_RAW = 255, /* Raw IP packets. */ +#define IPPROTO_RAW IPPROTO_RAW IPPROTO_MAX }; + +/* Type to represent a port. */ +typedef uint16_t in_port_t; + /* Standard well-known ports. */ enum { @@ -105,9 +132,9 @@ enum /* Internet address. */ typedef uint32_t in_addr_t; struct in_addr -{ + { in_addr_t s_addr; -}; + }; /* Definitions of the bits in an Internet address integer. @@ -115,48 +142,48 @@ struct in_addr 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(a) ((((in_addr_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(a) ((((in_addr_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(a) ((((in_addr_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_CLASSD(a) ((((in_addr_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) +#define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000) +#define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000) /* Address to accept any incoming messages. */ -#define INADDR_ANY ((uint32_t) 0x00000000) +#define INADDR_ANY ((in_addr_t) 0x00000000) /* Address to send to all hosts. */ -#define INADDR_BROADCAST ((uint32_t) 0xffffffff) +#define INADDR_BROADCAST ((in_addr_t) 0xffffffff) /* Address indicating an error return. */ -#define INADDR_NONE ((uint32_t) 0xffffffff) +#define INADDR_NONE ((in_addr_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. */ +# define INADDR_LOOPBACK ((in_addr_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 */ +#define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000) /* 224.0.0.0 */ +#define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001) /* 224.0.0.1 */ +#define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002) /* 224.0.0.2 */ +#define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */ /* IPv6 address */ @@ -164,17 +191,13 @@ 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 + uint8_t u6_addr8[16]; + uint16_t u6_addr16[8]; + uint32_t u6_addr32[4]; } 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; /* :: */ @@ -186,20 +209,20 @@ extern const struct in6_addr in6addr_loopback; /* ::1 */ #define INET6_ADDRSTRLEN 46 /* Get the definition of the macro to define the common sockaddr members. */ -#include <bits/sockaddr.h> +#include <bits/socket.h> /* Structure describing an Internet socket address. */ struct sockaddr_in { __SOCKADDR_COMMON (sin_); - uint16_t sin_port; /* Port number. */ + in_port_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 (in_port_t) - sizeof (struct in_addr)]; }; @@ -207,9 +230,10 @@ struct sockaddr_in struct sockaddr_in6 { __SOCKADDR_COMMON (sin6_); - uint16_t sin6_port; /* Transport layer port # */ + in_port_t sin6_port; /* Transport layer port # */ uint32_t sin6_flowinfo; /* IPv6 flow information */ struct in6_addr sin6_addr; /* IPv6 address */ + uint32_t sin6_scope_id; /* IPv6 scope-id */ }; /* IPv6 multicast request. */ @@ -232,81 +256,106 @@ struct ipv6_mreq 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)); +extern uint32_t ntohl (uint32_t __netlong) __THROW __attribute__ ((__const__)); +extern uint16_t ntohs (uint16_t __netshort) + __THROW __attribute__ ((__const__)); +extern uint32_t htonl (uint32_t __hostlong) + __THROW __attribute__ ((__const__)); +extern uint16_t htons (uint16_t __hostshort) + __THROW __attribute__ ((__const__)); #include <endian.h> /* Get machine dependent optimized versions of byte swapping functions. */ #include <bits/byteswap.h> -#if __BYTE_ORDER == __BIG_ENDIAN +#ifdef __OPTIMIZE__ +/* We can optimize calls to the conversion functions. Either nothing has + to be done or we are using directly the byte-swapping functions which + often can be inlined. */ +# 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) -#else -# if __BYTE_ORDER == __LITTLE_ENDIAN -# define ntohl(x) __bswap_32 (x) -# define ntohs(x) __bswap_16 (x) -# define htonl(x) __bswap_32 (x) -# define htons(x) __bswap_16 (x) +# else +# if __BYTE_ORDER == __LITTLE_ENDIAN +# 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 #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) + (((__const uint32_t *) (a))[0] == 0 \ + && ((__const uint32_t *) (a))[1] == 0 \ + && ((__const uint32_t *) (a))[2] == 0 \ + && ((__const 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)) + (((__const uint32_t *) (a))[0] == 0 \ + && ((__const uint32_t *) (a))[1] == 0 \ + && ((__const uint32_t *) (a))[2] == 0 \ + && ((__const uint32_t *) (a))[3] == htonl (1)) -#define IN6_IS_ADDR_MULTICAST(a) (((u_int8_t *) (a))[0] == 0xff) +#define IN6_IS_ADDR_MULTICAST(a) (((__const uint8_t *) (a))[0] == 0xff) #define IN6_IS_ADDR_LINKLOCAL(a) \ - ((((uint32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfe800000)) + ((((__const uint32_t *) (a))[0] & htonl (0xffc00000)) \ + == htonl (0xfe800000)) #define IN6_IS_ADDR_SITELOCAL(a) \ - ((((uint32_t *) (a))[0] & htonl (0xffc00000)) == htonl (0xfec00000)) + ((((__const 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))) + ((((__const uint32_t *) (a))[0] == 0) \ + && (((__const uint32_t *) (a))[1] == 0) \ + && (((__const 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)) + ((((__const uint32_t *) (a))[0] == 0) \ + && (((__const uint32_t *) (a))[1] == 0) \ + && (((__const uint32_t *) (a))[2] == 0) \ + && (ntohl (((__const 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])) + ((((__const uint32_t *) (a))[0] == ((__const uint32_t *) (b))[0]) \ + && (((__const uint32_t *) (a))[1] == ((__const uint32_t *) (b))[1]) \ + && (((__const uint32_t *) (a))[2] == ((__const uint32_t *) (b))[2]) \ + && (((__const uint32_t *) (a))[3] == ((__const uint32_t *) (b))[3])) /* Bind socket to a privileged IP port. */ -extern int bindresvport __P ((int __sockfd, struct sockaddr_in *__sock_in)); +extern int bindresvport (int __sockfd, struct sockaddr_in *__sock_in) __THROW; +/* The IPv6 version of this function. */ +extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in) + __THROW; #define IN6_IS_ADDR_MC_NODELOCAL(a) \ - (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0x1)) + (IN6_IS_ADDR_MULTICAST(a) \ + && ((((__const uint8_t *) (a))[1] & 0xf) == 0x1)) #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ - (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0x2)) + (IN6_IS_ADDR_MULTICAST(a) \ + && ((((__const uint8_t *) (a))[1] & 0xf) == 0x2)) #define IN6_IS_ADDR_MC_SITELOCAL(a) \ - (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0x5)) + (IN6_IS_ADDR_MULTICAST(a) \ + && ((((__const uint8_t *) (a))[1] & 0xf) == 0x5)) #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ - (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0x8)) + (IN6_IS_ADDR_MULTICAST(a) \ + && ((((__const uint8_t *) (a))[1] & 0xf) == 0x8)) #define IN6_IS_ADDR_MC_GLOBAL(a) \ - (IN6_IS_ADDR_MULTICAST(a) && ((((u_int8_t *) (a))[1] & 0xf) == 0xe)) + (IN6_IS_ADDR_MULTICAST(a) \ + && ((((__const uint8_t *) (a))[1] & 0xf) == 0xe)) /* IPv6 packet information. */ struct in6_pktinfo |