haiku/headers/legacy/network/netinet/in.h
Waldemar Kornewald a7c861ab5a Preparing for libnetwork.so.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15502 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-11 20:25:44 +00:00

173 lines
5.8 KiB
C

/* in.h */
#ifndef _NETINET_IN_H_
#define _NETINET_IN_H_
#include <sys/types.h>
#include <net/if.h>
#include <endian.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef unsigned short in_port_t;
typedef unsigned long in_addr_t;
/* We can't include <ByteOrder.h> since we are a posix file,
* and we are not allowed to import all the BeOS types here.
*/
#ifndef htonl
extern unsigned long __swap_int32(unsigned long); /* private */
extern unsigned short __swap_int16(unsigned short); /* private */
#if BYTE_ORDER == LITTLE_ENDIAN
#define htonl(x) __swap_int32(x)
#define ntohl(x) __swap_int32(x)
#define htons(x) __swap_int16(x)
#define ntohs(x) __swap_int16(x)
#elif BYTE_ORDER == BIG_ENDIAN
#define htonl(x) (x)
#define ntohl(x) (x)
#define htons(x) (x)
#define ntohs(x) (x)
#else
#error Unknown byte order.
#endif
#endif
/* Protocol definitions - add to as required... */
enum {
IPPROTO_IP = 0, /* 0, IPv4 */
IPPROTO_ICMP = 1, /* 1, ICMP (v4) */
IPPROTO_IGMP = 2, /* 2, IGMP (group management) */
IPPROTO_TCP = 6, /* 6, tcp */
IPPROTO_UDP = 17, /* 17, UDP */
IPPROTO_IPV6 = 41, /* 41, IPv6 in IPv6 */
IPPROTO_ROUTING = 43, /* 43, Routing */
IPPROTO_ICMPV6 = 58, /* 58, IPv6 ICMP */
IPPROTO_ETHERIP = 97, /* 97, Ethernet in IPv4 */
IPPROTO_RAW = 255 /* 255 */
};
#define IPPROTO_MAX 256
/* Port numbers...
* < IPPORT_RESERVED are privileged and should be
* accessible only by root
* > IPPORT_USERRESERVED are reserved for servers, though
* not requiring privileged status
*/
#define IPPORT_RESERVED 1024
#define IPPORT_USERRESERVED 49151
/* This is an IPv4 address structure. Why is it a structure?
* Historical reasons.
*/
struct in_addr {
in_addr_t s_addr;
};
/*
* IP Version 4 socket address.
*/
struct sockaddr_in {
uint8 sin_len;
uint8 sin_family;
uint16 sin_port;
struct in_addr sin_addr;
int8 sin_zero[24];
};
/* the address is therefore at sin_addr.s_addr */
/*
* Options for use with [gs]etsockopt at the IP level.
* First word of comment is data type; bool is stored in int.
*/
#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */
#define IP_HDRINCL 2 /* int; header is included with data */
#define IP_TOS 3 /* int; IP type of service and preced. */
#define IP_TTL 4 /* int; IP time to live */
#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */
#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */
#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */
#define IP_RETOPTS 8 /* ip_opts; set/get IP options */
#define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */
#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */
#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */
#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */
#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */
#define __IPADDR(x) ((uint32) htonl((uint32)(x)))
#define INADDR_ANY __IPADDR(0x00000000)
#define INADDR_LOOPBACK __IPADDR(0x7f000001)
#define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */
#define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */
#define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */
#define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */
#define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */
#define IN_LOOPBACKNET 127 /* official! */
#define INADDR_NONE __IPADDR(0xffffffff)
#define IN_CLASSA(i) (((uint32)(i) & __IPADDR(0x80000000)) == \
__IPADDR(0x00000000))
#define IN_CLASSA_NET __IPADDR(0xff000000)
#define IN_CLASSA_NSHIFT 24
#define IN_CLASSA_HOST __IPADDR(0x00ffffff)
#define IN_CLASSA_MAX 128
#define IN_CLASSB(i) (((uint32)(i) & __IPADDR(0xc0000000)) == \
__IPADDR(0x80000000))
#define IN_CLASSB_NET __IPADDR(0xffff0000)
#define IN_CLASSB_NSHIFT 16
#define IN_CLASSB_HOST __IPADDR(0x0000ffff)
#define IN_CLASSB_MAX 65536
#define IN_CLASSC(i) (((uint32)(i) & __IPADDR(0xe0000000)) == \
__IPADDR(0xc0000000))
#define IN_CLASSC_NET __IPADDR(0xffffff00)
#define IN_CLASSC_NSHIFT 8
#define IN_CLASSC_HOST __IPADDR(0x000000ff)
#define IN_CLASSD(i) (((uint32)(i) & __IPADDR(0xf0000000)) == \
__IPADDR(0xe0000000))
/* These ones aren't really net and host fields, but routing needn't know. */
#define IN_CLASSD_NET __IPADDR(0xf0000000)
#define IN_CLASSD_NSHIFT 28
#define IN_CLASSD_HOST __IPADDR(0x0fffffff)
#define IN_MULTICAST(i) IN_CLASSD(i)
#define IN_EXPERIMENTAL(i) (((uint32)(i) & 0xf0000000) == 0xf0000000)
#define IN_BADCLASS(i) (((uint32)(i) & 0xf0000000) == 0xf0000000)
#define IP_MAX_MEMBERSHIPS 20
/* some helpful macro's :) */
#define in_hosteq(s,t) ((s).s_addr == (t).s_addr)
#define in_nullhost(x) ((x).s_addr == INADDR_ANY)
#define satosin(sa) ((struct sockaddr_in *)(sa))
#define sintosa(sin) ((struct sockaddr *)(sin))
struct ifnet; // forward declaration
/* Prototypes... */
int in_broadcast (struct in_addr, struct ifnet *);
int in_canforward (struct in_addr);
int in_localaddr (struct in_addr);
void in_socktrim (struct sockaddr_in*);
/* uint16 in_cksum (struct mbuf *, int); */
struct mbuf;
uint16 in_cksum(struct mbuf *m, int len, int off);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* NETINET_IN_H */