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pspsdk/src/libcglue/netinet/in.h
Francisco Javier Trujillo Mata c0f526059a Rename libpsplibc to libcglue
2021-11-15 15:41:30 +01:00

281 lines
10 KiB
C

/* $NetBSD: in.h,v 1.71 2005/08/05 09:21:25 elad Exp $ */
/*
* Copyright (c) 1982, 1986, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)in.h 8.3 (Berkeley) 1/3/94
*/
/*
* Constants and structures defined by the internet system,
* Per RFC 790, September 1981, and numerous additions.
*/
#ifndef _NETINET_IN_H_
#define _NETINET_IN_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/socket.h>
typedef uint32_t in_addr_t;
typedef uint16_t in_port_t;
/*
* Protocols
*/
#define IPPROTO_IP 0 /* dummy for IP */
#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */
#define IPPROTO_ICMP 1 /* control message protocol */
#define IPPROTO_IGMP 2 /* group mgmt protocol */
#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */
#define IPPROTO_IPV4 4 /* IP header */
#define IPPROTO_IPIP 4 /* IP inside IP */
#define IPPROTO_TCP 6 /* tcp */
#define IPPROTO_EGP 8 /* exterior gateway protocol */
#define IPPROTO_PUP 12 /* pup */
#define IPPROTO_UDP 17 /* user datagram protocol */
#define IPPROTO_IDP 22 /* xns idp */
#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */
#define IPPROTO_IPV6 41 /* IP6 header */
#define IPPROTO_ROUTING 43 /* IP6 routing header */
#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */
#define IPPROTO_RSVP 46 /* resource reservation */
#define IPPROTO_GRE 47 /* GRE encaps RFC 1701 */
#define IPPROTO_ESP 50 /* encap. security payload */
#define IPPROTO_AH 51 /* authentication header */
#define IPPROTO_MOBILE 55 /* IP Mobility RFC 2004 */
#define IPPROTO_IPV6_ICMP 58 /* IPv6 ICMP */
#define IPPROTO_ICMPV6 58 /* ICMP6 */
#define IPPROTO_NONE 59 /* IP6 no next header */
#define IPPROTO_DSTOPTS 60 /* IP6 destination option */
#define IPPROTO_EON 80 /* ISO cnlp */
#define IPPROTO_ETHERIP 97 /* Ethernet-in-IP */
#define IPPROTO_ENCAP 98 /* encapsulation header */
#define IPPROTO_PIM 103 /* Protocol indep. multicast */
#define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */
#define IPPROTO_VRRP 112 /* VRRP RFC 2338 */
#define IPPROTO_RAW 255 /* raw IP packet */
#define IPPROTO_MAX 256
/* last return value of *_input(), meaning "all job for this pkt is done". */
#define IPPROTO_DONE 257
/* sysctl placeholder for (FAST_)IPSEC */
#define CTL_IPPROTO_IPSEC 258
/*
* Local port number conventions:
*
* Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
* unless a kernel is compiled with IPNOPRIVPORTS defined.
*
* When a user does a bind(2) or connect(2) with a port number of zero,
* a non-conflicting local port address is chosen.
*
* The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
* that is settable by sysctl(3); net.inet.ip.anonportmin and
* net.inet.ip.anonportmax respectively.
*
* A user may set the IPPROTO_IP option IP_PORTRANGE to change this
* default assignment range.
*
* The value IP_PORTRANGE_DEFAULT causes the default behavior.
*
* The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
* and exists only for FreeBSD compatibility purposes.
*
* The value IP_PORTRANGE_LOW changes the range to the "low" are
* that is (by convention) restricted to privileged processes.
* This convention is based on "vouchsafe" principles only.
* It is only secure if you trust the remote host to restrict these ports.
* The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
*/
#define IPPORT_RESERVED 1024
#define IPPORT_ANONMIN 49152
#define IPPORT_ANONMAX 65535
#define IPPORT_RESERVEDMIN 600
#define IPPORT_RESERVEDMAX (IPPORT_RESERVED-1)
/*
* Internet address (a structure for historical reasons)
*/
struct in_addr {
in_addr_t s_addr;
} __attribute__((__packed__));
#define __IPADDR(x) ((uint32_t)(x))
#define IN_CLASSA(i) (((uint32_t)(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_t)(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_t)(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_t)(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_t)(i) & __IPADDR(0xf0000000)) == \
__IPADDR(0xf0000000))
#define IN_BADCLASS(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \
__IPADDR(0xf0000000))
#define IN_LOCAL_GROUP(i) (((uint32_t)(i) & __IPADDR(0xffffff00)) == \
__IPADDR(0xe0000000))
#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_ALLRTRS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */
#define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */
#define IN_LOOPBACKNET 127 /* official! */
/*
* Socket address, internet style.
*/
struct sockaddr_in {
uint8_t sin_len;
sa_family_t sin_family;
in_port_t sin_port;
struct in_addr sin_addr;
int8_t sin_zero[8];
};
#define INET_ADDRSTRLEN 16
/*
* Structure used to describe IP options.
* Used to store options internally, to pass them to a process,
* or to restore options retrieved earlier.
* The ip_dst is used for the first-hop gateway when using a source route
* (this gets put into the header proper).
*/
struct ip_opts {
struct in_addr ip_dst; /* first hop, 0 w/o src rt */
#if defined(__cplusplus)
int8_t Ip_opts[40]; /* actually variable in size */
#else
int8_t ip_opts[40]; /* actually variable in size */
#endif
};
/*
* 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 IP_PORTRANGE 19 /* int; range to use for ephemeral port */
#define IP_RECVIF 20 /* bool; receive reception if w/dgram */
#define IP_ERRORMTU 21 /* int; get MTU of last xmit = EMSGSIZE */
#if 1 /*IPSEC*/
#define IP_IPSEC_POLICY 22 /* struct; get/set security policy */
#endif
/*
* Defaults and limits for options
*/
#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */
#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */
#define IP_MAX_MEMBERSHIPS 20 /* per socket; must fit in one mbuf */
/*
* Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
*/
struct ip_mreq {
struct in_addr imr_multiaddr; /* IP multicast address of group */
struct in_addr imr_interface; /* local IP address of interface */
};
/*
* Argument for IP_PORTRANGE:
* - which range to search when port is unspecified at bind() or connect()
*/
#define IP_PORTRANGE_DEFAULT 0 /* default range */
#define IP_PORTRANGE_HIGH 1 /* same as DEFAULT (FreeBSD compat) */
#define IP_PORTRANGE_LOW 2 /* use privileged range */
#if 0
// FIXME: These are optimized (one instruction), but currently not part of psp-gcc
#define ntohs(x) __builtin_allegrex_wsbh(x)
#define ntohl(x) __builtin_allegrex_wsbw(x)
#define htons(x) __builtin_allegrex_wsbh(x)
#define htonl(x) __builtin_allegrex_wsbw(x)
#else
#define ntohs(x) __builtin_bswap16(x)
#define ntohl(x) __builtin_bswap32(x)
#define htons(x) __builtin_bswap16(x)
#define htonl(x) __builtin_bswap32(x)
#endif
#ifdef __cplusplus
}
#endif
#endif /* !_NETINET_IN_H_ */