[mirror_edk2.git] / StdLib / Include / netinet / in.h

/*	$NetBSD: in.h,v 1.77 2006/11/13 05:13:41 dyoung Exp $	*/\r
\r
/*\r
 * Copyright (c) 1982, 1986, 1990, 1993\r
 *	The Regents of the University of California.  All rights reserved.\r
 *\r
 * Redistribution and use in source and binary forms, with or without\r
 * modification, are permitted provided that the following conditions\r
 * are met:\r
 * 1. Redistributions of source code must retain the above copyright\r
 *    notice, this list of conditions and the following disclaimer.\r
 * 2. Redistributions in binary form must reproduce the above copyright\r
 *    notice, this list of conditions and the following disclaimer in the\r
 *    documentation and/or other materials provided with the distribution.\r
 * 3. Neither the name of the University nor the names of its contributors\r
 *    may be used to endorse or promote products derived from this software\r
 *    without specific prior written permission.\r
 *\r
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
 * SUCH DAMAGE.\r
 *\r
 *	@(#)in.h	8.3 (Berkeley) 1/3/94\r
 */\r
\r
/*\r
 * Constants and structures defined by the internet system,\r
 * Per RFC 790, September 1981, and numerous additions.\r
 */\r
\r
#ifndef _NETINET_IN_H_\r
#define	_NETINET_IN_H_\r
\r
#include <machine/int_types.h>\r
\r
#ifndef uint8_t\r
typedef __uint8_t	uint8_t;\r
#define	uint8_t		__uint8_t\r
#endif\r
\r
#ifndef uint32_t\r
typedef __uint32_t	uint32_t;\r
#define	uint32_t	__uint32_t\r
#endif\r
\r
#include <sys/ansi.h>\r
\r
#ifndef in_addr_t\r
typedef __in_addr_t	in_addr_t;\r
#define	in_addr_t	__in_addr_t\r
#endif\r
\r
#ifndef in_port_t\r
typedef __in_port_t	in_port_t;\r
#define	in_port_t	__in_port_t\r
#endif\r
\r
#ifndef sa_family_t\r
typedef __sa_family_t	sa_family_t;\r
#define	sa_family_t	__sa_family_t\r
#endif\r
\r
/*\r
 * Protocols\r
 */\r
#define	IPPROTO_IP		0		/* dummy for IP */\r
#define	IPPROTO_HOPOPTS		0		/* IP6 hop-by-hop options */\r
#define	IPPROTO_ICMP		1		/* control message protocol */\r
#define	IPPROTO_IGMP		2		/* group mgmt protocol */\r
#define	IPPROTO_GGP		3		/* gateway^2 (deprecated) */\r
#define	IPPROTO_IPV4		4 		/* IP header */\r
#define	IPPROTO_IPIP		4		/* IP inside IP */\r
#define	IPPROTO_TCP		6		/* tcp */\r
#define	IPPROTO_EGP		8		/* exterior gateway protocol */\r
#define	IPPROTO_PUP		12		/* pup */\r
#define	IPPROTO_UDP		17		/* user datagram protocol */\r
#define	IPPROTO_IDP		22		/* xns idp */\r
#define	IPPROTO_TP		29 		/* tp-4 w/ class negotiation */\r
#define	IPPROTO_IPV6		41		/* IP6 header */\r
#define	IPPROTO_ROUTING		43		/* IP6 routing header */\r
#define	IPPROTO_FRAGMENT	44		/* IP6 fragmentation header */\r
#define	IPPROTO_RSVP		46		/* resource reservation */\r
#define	IPPROTO_GRE		47		/* GRE encaps RFC 1701 */\r
#define	IPPROTO_ESP		50 		/* encap. security payload */\r
#define	IPPROTO_AH		51 		/* authentication header */\r
#define	IPPROTO_MOBILE		55		/* IP Mobility RFC 2004 */\r
#define	IPPROTO_IPV6_ICMP	58		/* IPv6 ICMP */\r
#define	IPPROTO_ICMPV6		58		/* ICMP6 */\r
#define	IPPROTO_NONE		59		/* IP6 no next header */\r
#define	IPPROTO_DSTOPTS		60		/* IP6 destination option */\r
#define	IPPROTO_EON		80		/* ISO cnlp */\r
#define	IPPROTO_ETHERIP		97		/* Ethernet-in-IP */\r
#define	IPPROTO_ENCAP		98		/* encapsulation header */\r
#define	IPPROTO_PIM		103		/* Protocol indep. multicast */\r
#define	IPPROTO_IPCOMP		108		/* IP Payload Comp. Protocol */\r
#define	IPPROTO_VRRP		112		/* VRRP RFC 2338 */\r
#define	IPPROTO_CARP		112		/* Common Address Resolution Protocol */\r
#define	IPPROTO_RAW		255		/* raw IP packet */\r
#define	IPPROTO_MAX		256\r
\r
/* last return value of *_input(), meaning "all job for this pkt is done".  */\r
#define	IPPROTO_DONE		257\r
\r
/* sysctl placeholder for (FAST_)IPSEC */\r
#define CTL_IPPROTO_IPSEC	258\r
\r
\r
/*\r
 * Local port number conventions:\r
 *\r
 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),\r
 * unless a kernel is compiled with IPNOPRIVPORTS defined.\r
 *\r
 * When a user does a bind(2) or connect(2) with a port number of zero,\r
 * a non-conflicting local port address is chosen.\r
 *\r
 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although\r
 * that is settable by sysctl(3); net.inet.ip.anonportmin and\r
 * net.inet.ip.anonportmax respectively.\r
 *\r
 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this\r
 * default assignment range.\r
 *\r
 * The value IP_PORTRANGE_DEFAULT causes the default behavior.\r
 *\r
 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,\r
 * and exists only for FreeBSD compatibility purposes.\r
 *\r
 * The value IP_PORTRANGE_LOW changes the range to the "low" are\r
 * that is (by convention) restricted to privileged processes.\r
 * This convention is based on "vouchsafe" principles only.\r
 * It is only secure if you trust the remote host to restrict these ports.\r
 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.\r
 */\r
\r
#define	IPPORT_RESERVED		1024\r
#define	IPPORT_ANONMIN		49152\r
#define	IPPORT_ANONMAX		65535\r
#define	IPPORT_RESERVEDMIN	600\r
#define	IPPORT_RESERVEDMAX	(IPPORT_RESERVED-1)\r
\r
/*\r
 * Internet address (a structure for historical reasons)\r
 */\r
struct in_addr {\r
	in_addr_t s_addr;\r
} __attribute__((__packed__));\r
\r
/*\r
 * Definitions of bits in internet address integers.\r
 * On subnets, the decomposition of addresses to host and net parts\r
 * is done according to subnet mask, not the masks here.\r
 *\r
 * By byte-swapping the constants, we avoid ever having to byte-swap IP\r
 * addresses inside the kernel.  Unfortunately, user-level programs rely\r
 * on these macros not doing byte-swapping.\r
 */\r
#ifdef _KERNEL\r
#define	__IPADDR(x)	((uint32_t) htonl((uint32_t)(x)))\r
#else\r
#define	__IPADDR(x)	((uint32_t)(x))\r
#endif\r
\r
#define	IN_CLASSA(i)		(((uint32_t)(i) & __IPADDR(0x80000000)) == \\r
				 __IPADDR(0x00000000))\r
#define	IN_CLASSA_NET		__IPADDR(0xff000000)\r
#define	IN_CLASSA_NSHIFT	24\r
#define	IN_CLASSA_HOST		__IPADDR(0x00ffffff)\r
#define	IN_CLASSA_MAX		128\r
\r
#define	IN_CLASSB(i)		(((uint32_t)(i) & __IPADDR(0xc0000000)) == \\r
				 __IPADDR(0x80000000))\r
#define	IN_CLASSB_NET		__IPADDR(0xffff0000)\r
#define	IN_CLASSB_NSHIFT	16\r
#define	IN_CLASSB_HOST		__IPADDR(0x0000ffff)\r
#define	IN_CLASSB_MAX		65536\r
\r
#define	IN_CLASSC(i)		(((uint32_t)(i) & __IPADDR(0xe0000000)) == \\r
				 __IPADDR(0xc0000000))\r
#define	IN_CLASSC_NET		__IPADDR(0xffffff00)\r
#define	IN_CLASSC_NSHIFT	8\r
#define	IN_CLASSC_HOST		__IPADDR(0x000000ff)\r
\r
#define	IN_CLASSD(i)		(((uint32_t)(i) & __IPADDR(0xf0000000)) == \\r
				 __IPADDR(0xe0000000))\r
/* These ones aren't really net and host fields, but routing needn't know. */\r
#define	IN_CLASSD_NET		__IPADDR(0xf0000000)\r
#define	IN_CLASSD_NSHIFT	28\r
#define	IN_CLASSD_HOST		__IPADDR(0x0fffffff)\r
#define	IN_MULTICAST(i)		IN_CLASSD(i)\r
\r
#define	IN_EXPERIMENTAL(i)	(((uint32_t)(i) & __IPADDR(0xf0000000)) == \\r
				 __IPADDR(0xf0000000))\r
#define	IN_BADCLASS(i)		(((uint32_t)(i) & __IPADDR(0xf0000000)) == \\r
				 __IPADDR(0xf0000000))\r
\r
#define IN_LINKLOCAL(i)	(((uint32_t)(i) & __IPADDR(0xffff0000)) == \\r
			 __IPADDR(0xa9fe0000))\r
\r
#define	IN_PRIVATE(i)	((((uint32_t)(i) & __IPADDR(0xff000000)) ==	\\r
			  __IPADDR(0x0a000000))	||			\\r
			 (((uint32_t)(i) & __IPADDR(0xfff00000)) ==	\\r
			  __IPADDR(0xac100000))	||			\\r
			 (((uint32_t)(i) & __IPADDR(0xffff0000)) ==	\\r
			  __IPADDR(0xc0a80000)))\r
\r
#define	IN_LOCAL_GROUP(i)	(((uint32_t)(i) & __IPADDR(0xffffff00)) == \\r
				 __IPADDR(0xe0000000))\r
\r
#define	IN_ANY_LOCAL(i)		(IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i))\r
\r
#define	INADDR_ANY		__IPADDR(0x00000000)\r
#define	INADDR_LOOPBACK		__IPADDR(0x7f000001)\r
#define	INADDR_BROADCAST	__IPADDR(0xffffffff)	/* must be masked */\r
#define	INADDR_NONE		__IPADDR(0xffffffff)	/* -1 return */\r
\r
#define	INADDR_UNSPEC_GROUP	__IPADDR(0xe0000000)	/* 224.0.0.0 */\r
#define	INADDR_ALLHOSTS_GROUP	__IPADDR(0xe0000001)	/* 224.0.0.1 */\r
#define	INADDR_ALLRTRS_GROUP	__IPADDR(0xe0000002)	/* 224.0.0.2 */\r
#define	INADDR_CARP_GROUP	__IPADDR(0xe0000012)	/* 224.0.0.18 */\r
#define	INADDR_MAX_LOCAL_GROUP	__IPADDR(0xe00000ff)	/* 224.0.0.255 */\r
\r
#define	IN_LOOPBACKNET		127			/* official! */\r
\r
/*\r
 * Socket address, internet style.\r
 */\r
struct sockaddr_in {\r
	uint8_t		sin_len;\r
	sa_family_t	sin_family;\r
	in_port_t	sin_port;\r
	struct in_addr	sin_addr;\r
	__int8_t	sin_zero[8];\r
};\r
\r
#define	INET_ADDRSTRLEN                 16\r
\r
/*\r
 * Structure used to describe IP options.\r
 * Used to store options internally, to pass them to a process,\r
 * or to restore options retrieved earlier.\r
 * The ip_dst is used for the first-hop gateway when using a source route\r
 * (this gets put into the header proper).\r
 */\r
struct ip_opts {\r
	struct in_addr	ip_dst;		/* first hop, 0 w/o src rt */\r
#if defined(__cplusplus)\r
	__int8_t	Ip_opts[40];	/* actually variable in size */\r
#else\r
	__int8_t	ip_opts[40];	/* actually variable in size */\r
#endif\r
};\r
\r
/*\r
 * Options for use with [gs]etsockopt at the IP level.\r
 * First word of comment is data type; bool is stored in int.\r
 */\r
#define	IP_OPTIONS		1    /* buf/ip_opts; set/get IP options */\r
#define	IP_HDRINCL		2    /* int; header is included with data */\r
#define	IP_TOS			3    /* int; IP type of service and preced. */\r
#define	IP_TTL			4    /* int; IP time to live */\r
#define	IP_RECVOPTS		5    /* bool; receive all IP opts w/dgram */\r
#define	IP_RECVRETOPTS		6    /* bool; receive IP opts for response */\r
#define	IP_RECVDSTADDR		7    /* bool; receive IP dst addr w/dgram */\r
#define	IP_RETOPTS		8    /* ip_opts; set/get IP options */\r
#define	IP_MULTICAST_IF		9    /* in_addr; set/get IP multicast i/f  */\r
#define	IP_MULTICAST_TTL	10   /* u_char; set/get IP multicast ttl */\r
#define	IP_MULTICAST_LOOP	11   /* u_char; set/get IP multicast loopback */\r
#define	IP_ADD_MEMBERSHIP	12   /* ip_mreq; add an IP group membership */\r
#define	IP_DROP_MEMBERSHIP	13   /* ip_mreq; drop an IP group membership */\r
#define	IP_PORTRANGE		19   /* int; range to use for ephemeral port */\r
#define	IP_RECVIF		20   /* bool; receive reception if w/dgram */\r
#define	IP_ERRORMTU		21   /* int; get MTU of last xmit = EMSGSIZE */\r
#if 1 /*IPSEC*/\r
#define	IP_IPSEC_POLICY		22 /* struct; get/set security policy */\r
#endif\r
\r
/*\r
 * Defaults and limits for options\r
 */\r
#define	IP_DEFAULT_MULTICAST_TTL  1	/* normally limit m'casts to 1 hop  */\r
#define	IP_DEFAULT_MULTICAST_LOOP 1	/* normally hear sends if a member  */\r
#define	IP_MAX_MEMBERSHIPS	20	/* per socket; must fit in one mbuf */\r
\r
/*\r
 * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.\r
 */\r
struct ip_mreq {\r
	struct	in_addr imr_multiaddr;	/* IP multicast address of group */\r
	struct	in_addr imr_interface;	/* local IP address of interface */\r
};\r
\r
/*\r
 * Argument for IP_PORTRANGE:\r
 * - which range to search when port is unspecified at bind() or connect()\r
 */\r
#define	IP_PORTRANGE_DEFAULT	0	/* default range */\r
#define	IP_PORTRANGE_HIGH	1	/* same as DEFAULT (FreeBSD compat) */\r
#define	IP_PORTRANGE_LOW	2	/* use privileged range */\r
\r
#if defined(_NETBSD_SOURCE)\r
/*\r
 * Definitions for inet sysctl operations.\r
 *\r
 * Third level is protocol number.\r
 * Fourth level is desired variable within that protocol.\r
 */\r
#define	IPPROTO_MAXID	(IPPROTO_AH + 1)	/* don't list to IPPROTO_MAX */\r
\r
#define	CTL_IPPROTO_NAMES { \\r
	{ "ip", CTLTYPE_NODE }, \\r
	{ "icmp", CTLTYPE_NODE }, \\r
	{ "igmp", CTLTYPE_NODE }, \\r
	{ "ggp", CTLTYPE_NODE }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ "tcp", CTLTYPE_NODE }, \\r
	{ 0, 0 }, \\r
	{ "egp", CTLTYPE_NODE }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ "pup", CTLTYPE_NODE }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ "udp", CTLTYPE_NODE }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ "idp", CTLTYPE_NODE }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ "ipsec", CTLTYPE_NODE }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ 0, 0 }, \\r
	{ "pim", CTLTYPE_NODE }, \\r
}\r
\r
/*\r
 * Names for IP sysctl objects\r
 */\r
#define	IPCTL_FORWARDING	1	/* act as router */\r
#define	IPCTL_SENDREDIRECTS	2	/* may send redirects when forwarding */\r
#define	IPCTL_DEFTTL		3	/* default TTL */\r
#ifdef notyet\r
#define	IPCTL_DEFMTU		4	/* default MTU */\r
#endif\r
#define	IPCTL_FORWSRCRT		5	/* forward source-routed packets */\r
#define	IPCTL_DIRECTEDBCAST	6	/* default broadcast behavior */\r
#define	IPCTL_ALLOWSRCRT	7	/* allow/drop all source-routed pkts */\r
#define	IPCTL_SUBNETSARELOCAL	8	/* treat subnets as local addresses */\r
#define	IPCTL_MTUDISC		9	/* allow path MTU discovery */\r
#define	IPCTL_ANONPORTMIN      10	/* minimum ephemeral port */\r
#define	IPCTL_ANONPORTMAX      11	/* maximum ephemeral port */\r
#define	IPCTL_MTUDISCTIMEOUT   12	/* allow path MTU discovery */\r
#define	IPCTL_MAXFLOWS         13	/* maximum ip flows allowed */\r
#define	IPCTL_HOSTZEROBROADCAST 14	/* is host zero a broadcast addr? */\r
#define	IPCTL_GIF_TTL 	       15	/* default TTL for gif encap packet */\r
#define	IPCTL_LOWPORTMIN       16	/* minimum reserved port */\r
#define	IPCTL_LOWPORTMAX       17	/* maximum reserved port */\r
#define	IPCTL_MAXFRAGPACKETS   18	/* max packets reassembly queue */\r
#define	IPCTL_GRE_TTL          19	/* default TTL for gre encap packet */\r
#define	IPCTL_CHECKINTERFACE   20	/* drop pkts in from 'wrong' iface */\r
#define	IPCTL_IFQ	       21	/* ipintrq node */\r
#define	IPCTL_RANDOMID	       22	/* use random IP ids (if configured) */\r
#define	IPCTL_LOOPBACKCKSUM    23	/* do IP checksum on loopback */\r
#define	IPCTL_STATS		24	/* IP statistics */\r
#define	IPCTL_MAXID	       25\r
\r
#define	IPCTL_NAMES { \\r
	{ 0, 0 }, \\r
	{ "forwarding", CTLTYPE_INT }, \\r
	{ "redirect", CTLTYPE_INT }, \\r
	{ "ttl", CTLTYPE_INT }, \\r
	{ "mtu", CTLTYPE_INT }, \\r
	{ "forwsrcrt", CTLTYPE_INT }, \\r
	{ "directed-broadcast", CTLTYPE_INT }, \\r
	{ "allowsrcrt", CTLTYPE_INT }, \\r
	{ "subnetsarelocal", CTLTYPE_INT }, \\r
	{ "mtudisc", CTLTYPE_INT }, \\r
	{ "anonportmin", CTLTYPE_INT }, \\r
	{ "anonportmax", CTLTYPE_INT }, \\r
	{ "mtudisctimeout", CTLTYPE_INT }, \\r
	{ "maxflows", CTLTYPE_INT }, \\r
	{ "hostzerobroadcast", CTLTYPE_INT }, \\r
	{ "gifttl", CTLTYPE_INT }, \\r
	{ "lowportmin", CTLTYPE_INT }, \\r
	{ "lowportmax", CTLTYPE_INT }, \\r
	{ "maxfragpackets", CTLTYPE_INT }, \\r
	{ "grettl", CTLTYPE_INT }, \\r
	{ "checkinterface", CTLTYPE_INT }, \\r
	{ "ifq", CTLTYPE_NODE }, \\r
	{ "random_id", CTLTYPE_INT }, \\r
	{ "do_loopback_cksum", CTLTYPE_INT }, \\r
	{ "stats", CTLTYPE_STRUCT }, \\r
}\r
#endif /* _NETBSD_SOURCE */\r
\r
/* INET6 stuff */\r
#define	__KAME_NETINET_IN_H_INCLUDED_\r
#include <netinet6/in6.h>\r
#undef __KAME_NETINET_IN_H_INCLUDED_\r
\r
#ifdef _KERNEL\r
/*\r
 * in_cksum_phdr:\r
 *\r
 *	Compute significant parts of the IPv4 checksum pseudo-header\r
 *	for use in a delayed TCP/UDP checksum calculation.\r
 *\r
 *	Args:\r
 *\r
 *		src		Source IP address\r
 *		dst		Destination IP address\r
 *		lenproto	htons(proto-hdr-len + proto-number)\r
 */\r
static __inline u_int16_t __attribute__((__unused__))\r
in_cksum_phdr(u_int32_t src, u_int32_t dst, u_int32_t lenproto)\r
{\r
	u_int32_t sum;\r
\r
	sum = lenproto +\r
	      (u_int16_t)(src >> 16) +\r
	      (u_int16_t)(src /*& 0xffff*/) +\r
	      (u_int16_t)(dst >> 16) +\r
	      (u_int16_t)(dst /*& 0xffff*/);\r
\r
	sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /*& 0xffff*/);\r
\r
	if (sum > 0xffff)\r
		sum -= 0xffff;\r
\r
	return (sum);\r
}\r
\r
/*\r
 * in_cksum_addword:\r
 *\r
 *	Add the two 16-bit network-order values, carry, and return.\r
 */\r
static __inline u_int16_t __attribute__((__unused__))\r
in_cksum_addword(u_int16_t a, u_int16_t b)\r
{\r
	u_int32_t sum = a + b;\r
\r
	if (sum > 0xffff)\r
		sum -= 0xffff;\r
\r
	return (sum);\r
}\r
\r
extern	struct in_addr zeroin_addr;\r
extern	u_char	ip_protox[];\r
\r
int	in_broadcast(struct in_addr, struct ifnet *);\r
int	in_canforward(struct in_addr);\r
int	in_cksum(struct mbuf *, int);\r
int	in4_cksum(struct mbuf *, u_int8_t, int, int);\r
void	in_delayed_cksum(struct mbuf *);\r
int	in_localaddr(struct in_addr);\r
void	in_socktrim(struct sockaddr_in *);\r
\r
#define	in_hosteq(s,t)	((s).s_addr == (t).s_addr)\r
#define	in_nullhost(x)	((x).s_addr == INADDR_ANY)\r
\r
#define	satosin(sa)	((struct sockaddr_in *)(sa))\r
#define	sintosa(sin)	((struct sockaddr *)(sin))\r
#define	ifatoia(ifa)	((struct in_ifaddr *)(ifa))\r
#endif /* _KERNEL */\r
\r
#endif /* !_NETINET_IN_H_ */\r
Commit	Line	Data
2aa62f2b	1	/* $NetBSD: in.h,v 1.77 2006/11/13 05:13:41 dyoung Exp $ */\r
	2	\r
	3	/*\r
	4	* Copyright (c) 1982, 1986, 1990, 1993\r
	5	* The Regents of the University of California. All rights reserved.\r
	6	*\r
	7	* Redistribution and use in source and binary forms, with or without\r
	8	* modification, are permitted provided that the following conditions\r
	9	* are met:\r
	10	* 1. Redistributions of source code must retain the above copyright\r
	11	* notice, this list of conditions and the following disclaimer.\r
	12	* 2. Redistributions in binary form must reproduce the above copyright\r
	13	* notice, this list of conditions and the following disclaimer in the\r
	14	* documentation and/or other materials provided with the distribution.\r
	15	* 3. Neither the name of the University nor the names of its contributors\r
	16	* may be used to endorse or promote products derived from this software\r
	17	* without specific prior written permission.\r
	18	*\r
	19	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r
	20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
	21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
	22	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r
	23	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
	24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
	25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
	26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
	27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
	28	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
	29	* SUCH DAMAGE.\r
	30	*\r
	31	* @(#)in.h 8.3 (Berkeley) 1/3/94\r
	32	*/\r
	33	\r
	34	/*\r
	35	* Constants and structures defined by the internet system,\r
	36	* Per RFC 790, September 1981, and numerous additions.\r
	37	*/\r
	38	\r
	39	#ifndef _NETINET_IN_H_\r
	40	#define _NETINET_IN_H_\r
	41	\r
	42	#include <machine/int_types.h>\r
	43	\r
	44	#ifndef uint8_t\r
	45	typedef __uint8_t uint8_t;\r
	46	#define uint8_t __uint8_t\r
	47	#endif\r
	48	\r
	49	#ifndef uint32_t\r
	50	typedef __uint32_t uint32_t;\r
	51	#define uint32_t __uint32_t\r
	52	#endif\r
	53	\r
	54	#include <sys/ansi.h>\r
	55	\r
	56	#ifndef in_addr_t\r
	57	typedef __in_addr_t in_addr_t;\r
	58	#define in_addr_t __in_addr_t\r
	59	#endif\r
	60	\r
	61	#ifndef in_port_t\r
	62	typedef __in_port_t in_port_t;\r
	63	#define in_port_t __in_port_t\r
	64	#endif\r
65	\r
66	#ifndef sa_family_t\r
67	typedef __sa_family_t sa_family_t;\r
68	#define sa_family_t __sa_family_t\r
69	#endif\r
70	\r
71	/*\r
72	* Protocols\r
73	*/\r
74	#define IPPROTO_IP 0 /* dummy for IP */\r
75	#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */\r
76	#define IPPROTO_ICMP 1 /* control message protocol */\r
77	#define IPPROTO_IGMP 2 /* group mgmt protocol */\r
78	#define IPPROTO_GGP 3 /* gateway^2 (deprecated) */\r
79	#define IPPROTO_IPV4 4 /* IP header */\r
80	#define IPPROTO_IPIP 4 /* IP inside IP */\r
81	#define IPPROTO_TCP 6 /* tcp */\r
82	#define IPPROTO_EGP 8 /* exterior gateway protocol */\r
83	#define IPPROTO_PUP 12 /* pup */\r
84	#define IPPROTO_UDP 17 /* user datagram protocol */\r
85	#define IPPROTO_IDP 22 /* xns idp */\r
86	#define IPPROTO_TP 29 /* tp-4 w/ class negotiation */\r
87	#define IPPROTO_IPV6 41 /* IP6 header */\r
88	#define IPPROTO_ROUTING 43 /* IP6 routing header */\r
89	#define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */\r
90	#define IPPROTO_RSVP 46 /* resource reservation */\r
91	#define IPPROTO_GRE 47 /* GRE encaps RFC 1701 */\r
92	#define IPPROTO_ESP 50 /* encap. security payload */\r
93	#define IPPROTO_AH 51 /* authentication header */\r
94	#define IPPROTO_MOBILE 55 /* IP Mobility RFC 2004 */\r
95	#define IPPROTO_IPV6_ICMP 58 /* IPv6 ICMP */\r
96	#define IPPROTO_ICMPV6 58 /* ICMP6 */\r
97	#define IPPROTO_NONE 59 /* IP6 no next header */\r
98	#define IPPROTO_DSTOPTS 60 /* IP6 destination option */\r
99	#define IPPROTO_EON 80 /* ISO cnlp */\r
100	#define IPPROTO_ETHERIP 97 /* Ethernet-in-IP */\r
101	#define IPPROTO_ENCAP 98 /* encapsulation header */\r
102	#define IPPROTO_PIM 103 /* Protocol indep. multicast */\r
103	#define IPPROTO_IPCOMP 108 /* IP Payload Comp. Protocol */\r
104	#define IPPROTO_VRRP 112 /* VRRP RFC 2338 */\r
105	#define IPPROTO_CARP 112 /* Common Address Resolution Protocol */\r
106	#define IPPROTO_RAW 255 /* raw IP packet */\r
107	#define IPPROTO_MAX 256\r
108	\r
109	/* last return value of _input(), meaning "all job for this pkt is done". /\r
110	#define IPPROTO_DONE 257\r
111	\r
112	/* sysctl placeholder for (FAST_)IPSEC */\r
113	#define CTL_IPPROTO_IPSEC 258\r
114	\r
115	\r
116	/*\r
117	* Local port number conventions:\r
118	*\r
119	* Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),\r
120	* unless a kernel is compiled with IPNOPRIVPORTS defined.\r
121	*\r
122	* When a user does a bind(2) or connect(2) with a port number of zero,\r
123	* a non-conflicting local port address is chosen.\r
124	*\r
125	* The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although\r
126	* that is settable by sysctl(3); net.inet.ip.anonportmin and\r
127	* net.inet.ip.anonportmax respectively.\r
128	*\r
129	* A user may set the IPPROTO_IP option IP_PORTRANGE to change this\r
130	* default assignment range.\r
131	*\r
132	* The value IP_PORTRANGE_DEFAULT causes the default behavior.\r
133	*\r
134	* The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,\r
135	* and exists only for FreeBSD compatibility purposes.\r
136	*\r
137	* The value IP_PORTRANGE_LOW changes the range to the "low" are\r
138	* that is (by convention) restricted to privileged processes.\r
139	* This convention is based on "vouchsafe" principles only.\r
140	* It is only secure if you trust the remote host to restrict these ports.\r
141	* The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.\r
142	*/\r
143	\r
144	#define IPPORT_RESERVED 1024\r
145	#define IPPORT_ANONMIN 49152\r
146	#define IPPORT_ANONMAX 65535\r
147	#define IPPORT_RESERVEDMIN 600\r
148	#define IPPORT_RESERVEDMAX (IPPORT_RESERVED-1)\r
149	\r
150	/*\r
151	* Internet address (a structure for historical reasons)\r
152	*/\r
153	struct in_addr {\r
154	in_addr_t s_addr;\r
155	} __attribute__((__packed__));\r
156	\r
157	/*\r
158	* Definitions of bits in internet address integers.\r
159	* On subnets, the decomposition of addresses to host and net parts\r
160	* is done according to subnet mask, not the masks here.\r
161	*\r
162	* By byte-swapping the constants, we avoid ever having to byte-swap IP\r
163	* addresses inside the kernel. Unfortunately, user-level programs rely\r
164	* on these macros not doing byte-swapping.\r
165	*/\r
166	#ifdef _KERNEL\r
167	#define __IPADDR(x) ((uint32_t) htonl((uint32_t)(x)))\r
168	#else\r
169	#define __IPADDR(x) ((uint32_t)(x))\r
170	#endif\r
171	\r
172	#define IN_CLASSA(i) (((uint32_t)(i) & __IPADDR(0x80000000)) == \\r
173	__IPADDR(0x00000000))\r
174	#define IN_CLASSA_NET __IPADDR(0xff000000)\r
175	#define IN_CLASSA_NSHIFT 24\r
176	#define IN_CLASSA_HOST __IPADDR(0x00ffffff)\r
177	#define IN_CLASSA_MAX 128\r
178	\r
179	#define IN_CLASSB(i) (((uint32_t)(i) & __IPADDR(0xc0000000)) == \\r
180	__IPADDR(0x80000000))\r
181	#define IN_CLASSB_NET __IPADDR(0xffff0000)\r
182	#define IN_CLASSB_NSHIFT 16\r
183	#define IN_CLASSB_HOST __IPADDR(0x0000ffff)\r
184	#define IN_CLASSB_MAX 65536\r
185	\r
186	#define IN_CLASSC(i) (((uint32_t)(i) & __IPADDR(0xe0000000)) == \\r
187	__IPADDR(0xc0000000))\r
188	#define IN_CLASSC_NET __IPADDR(0xffffff00)\r
189	#define IN_CLASSC_NSHIFT 8\r
190	#define IN_CLASSC_HOST __IPADDR(0x000000ff)\r
191	\r
192	#define IN_CLASSD(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \\r
193	__IPADDR(0xe0000000))\r
194	/* These ones aren't really net and host fields, but routing needn't know. */\r
195	#define IN_CLASSD_NET __IPADDR(0xf0000000)\r
196	#define IN_CLASSD_NSHIFT 28\r
197	#define IN_CLASSD_HOST __IPADDR(0x0fffffff)\r
198	#define IN_MULTICAST(i) IN_CLASSD(i)\r
199	\r
200	#define IN_EXPERIMENTAL(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \\r
201	__IPADDR(0xf0000000))\r
202	#define IN_BADCLASS(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \\r
203	__IPADDR(0xf0000000))\r
204	\r
205	#define IN_LINKLOCAL(i) (((uint32_t)(i) & __IPADDR(0xffff0000)) == \\r
206	__IPADDR(0xa9fe0000))\r
207	\r
208	#define IN_PRIVATE(i) ((((uint32_t)(i) & __IPADDR(0xff000000)) == \\r
209	__IPADDR(0x0a000000)) \|\| \\r
210	(((uint32_t)(i) & __IPADDR(0xfff00000)) == \\r
211	__IPADDR(0xac100000)) \|\| \\r
212	(((uint32_t)(i) & __IPADDR(0xffff0000)) == \\r
213	__IPADDR(0xc0a80000)))\r
214	\r
215	#define IN_LOCAL_GROUP(i) (((uint32_t)(i) & __IPADDR(0xffffff00)) == \\r
216	__IPADDR(0xe0000000))\r
217	\r
218	#define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) \|\| IN_LOCAL_GROUP(i))\r
219	\r
220	#define INADDR_ANY __IPADDR(0x00000000)\r
221	#define INADDR_LOOPBACK __IPADDR(0x7f000001)\r
222	#define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */\r
223	#define INADDR_NONE __IPADDR(0xffffffff) /* -1 return */\r
224	\r
225	#define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */\r
226	#define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */\r
227	#define INADDR_ALLRTRS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */\r
228	#define INADDR_CARP_GROUP __IPADDR(0xe0000012) /* 224.0.0.18 */\r
229	#define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */\r
230	\r
231	#define IN_LOOPBACKNET 127 /* official! */\r
232	\r
233	/*\r
234	* Socket address, internet style.\r
235	*/\r
236	struct sockaddr_in {\r
237	uint8_t sin_len;\r
238	sa_family_t sin_family;\r
239	in_port_t sin_port;\r
240	struct in_addr sin_addr;\r
241	__int8_t sin_zero[8];\r
242	};\r
243	\r
244	#define INET_ADDRSTRLEN 16\r
245	\r
246	/*\r
247	* Structure used to describe IP options.\r
248	* Used to store options internally, to pass them to a process,\r
249	* or to restore options retrieved earlier.\r
250	* The ip_dst is used for the first-hop gateway when using a source route\r
251	* (this gets put into the header proper).\r
252	*/\r
253	struct ip_opts {\r
254	struct in_addr ip_dst; /* first hop, 0 w/o src rt */\r
255	#if defined(__cplusplus)\r
256	__int8_t Ip_opts[40]; /* actually variable in size */\r
257	#else\r
258	__int8_t ip_opts[40]; /* actually variable in size */\r
259	#endif\r
260	};\r
261	\r
262	/*\r
263	* Options for use with [gs]etsockopt at the IP level.\r
264	* First word of comment is data type; bool is stored in int.\r
265	*/\r
266	#define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */\r
267	#define IP_HDRINCL 2 /* int; header is included with data */\r
268	#define IP_TOS 3 /* int; IP type of service and preced. */\r
269	#define IP_TTL 4 /* int; IP time to live */\r
270	#define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */\r
271	#define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */\r
272	#define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */\r
273	#define IP_RETOPTS 8 /* ip_opts; set/get IP options */\r
274	#define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */\r
275	#define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */\r
276	#define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */\r
277	#define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */\r
278	#define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */\r
279	#define IP_PORTRANGE 19 /* int; range to use for ephemeral port */\r
280	#define IP_RECVIF 20 /* bool; receive reception if w/dgram */\r
281	#define IP_ERRORMTU 21 /* int; get MTU of last xmit = EMSGSIZE */\r
282	#if 1 /IPSEC/\r
283	#define IP_IPSEC_POLICY 22 /* struct; get/set security policy */\r
284	#endif\r
285	\r
286	/*\r
287	* Defaults and limits for options\r
288	*/\r
289	#define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */\r
290	#define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */\r
291	#define IP_MAX_MEMBERSHIPS 20 /* per socket; must fit in one mbuf */\r
292	\r
293	/*\r
294	* Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.\r
295	*/\r
296	struct ip_mreq {\r
297	struct in_addr imr_multiaddr; /* IP multicast address of group */\r
298	struct in_addr imr_interface; /* local IP address of interface */\r
299	};\r
300	\r
301	/*\r
302	* Argument for IP_PORTRANGE:\r
303	* - which range to search when port is unspecified at bind() or connect()\r
304	*/\r
305	#define IP_PORTRANGE_DEFAULT 0 /* default range */\r
306	#define IP_PORTRANGE_HIGH 1 /* same as DEFAULT (FreeBSD compat) */\r
307	#define IP_PORTRANGE_LOW 2 /* use privileged range */\r
308	\r
309	#if defined(_NETBSD_SOURCE)\r
310	/*\r
311	* Definitions for inet sysctl operations.\r
312	*\r
313	* Third level is protocol number.\r
314	* Fourth level is desired variable within that protocol.\r
315	*/\r
316	#define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */\r
317	\r
318	#define CTL_IPPROTO_NAMES { \\r
319	{ "ip", CTLTYPE_NODE }, \\r
320	{ "icmp", CTLTYPE_NODE }, \\r
321	{ "igmp", CTLTYPE_NODE }, \\r
322	{ "ggp", CTLTYPE_NODE }, \\r
323	{ 0, 0 }, \\r
324	{ 0, 0 }, \\r
325	{ "tcp", CTLTYPE_NODE }, \\r
326	{ 0, 0 }, \\r
327	{ "egp", CTLTYPE_NODE }, \\r
328	{ 0, 0 }, \\r
329	{ 0, 0 }, \\r
330	{ 0, 0 }, \\r
331	{ "pup", CTLTYPE_NODE }, \\r
332	{ 0, 0 }, \\r
333	{ 0, 0 }, \\r
334	{ 0, 0 }, \\r
335	{ 0, 0 }, \\r
336	{ "udp", CTLTYPE_NODE }, \\r
337	{ 0, 0 }, \\r
338	{ 0, 0 }, \\r
339	{ 0, 0 }, \\r
340	{ 0, 0 }, \\r
341	{ "idp", CTLTYPE_NODE }, \\r
342	{ 0, 0 }, \\r
343	{ 0, 0 }, \\r
344	{ 0, 0 }, \\r
345	{ 0, 0 }, \\r
346	{ 0, 0 }, \\r
347	{ 0, 0 }, \\r
348	{ 0, 0 }, \\r
349	{ 0, 0 }, \\r
350	{ 0, 0 }, \\r
351	{ 0, 0 }, \\r
352	{ 0, 0 }, \\r
353	{ 0, 0 }, \\r
354	{ 0, 0 }, \\r
355	{ 0, 0 }, \\r
356	{ 0, 0 }, \\r
357	{ 0, 0 }, \\r
358	{ 0, 0 }, \\r
359	{ 0, 0 }, \\r
360	{ 0, 0 }, \\r
361	{ 0, 0 }, \\r
362	{ 0, 0 }, \\r
363	{ 0, 0 }, \\r
364	{ 0, 0 }, \\r
365	{ 0, 0 }, \\r
366	{ 0, 0 }, \\r
367	{ 0, 0 }, \\r
368	{ 0, 0 }, \\r
369	{ 0, 0 }, \\r
370	{ "ipsec", CTLTYPE_NODE }, \\r
371	{ 0, 0 }, \\r
372	{ 0, 0 }, \\r
373	{ 0, 0 }, \\r
374	{ 0, 0 }, \\r
375	{ 0, 0 }, \\r
376	{ 0, 0 }, \\r
377	{ 0, 0 }, \\r
378	{ 0, 0 }, \\r
379	{ 0, 0 }, \\r
380	{ 0, 0 }, \\r
381	{ 0, 0 }, \\r
382	{ 0, 0 }, \\r
383	{ 0, 0 }, \\r
384	{ 0, 0 }, \\r
385	{ 0, 0 }, \\r
386	{ 0, 0 }, \\r
387	{ 0, 0 }, \\r
388	{ 0, 0 }, \\r
389	{ 0, 0 }, \\r
390	{ 0, 0 }, \\r
391	{ 0, 0 }, \\r
392	{ 0, 0 }, \\r
393	{ 0, 0 }, \\r
394	{ 0, 0 }, \\r
395	{ 0, 0 }, \\r
396	{ 0, 0 }, \\r
397	{ 0, 0 }, \\r
398	{ 0, 0 }, \\r
399	{ 0, 0 }, \\r
400	{ 0, 0 }, \\r
401	{ 0, 0 }, \\r
402	{ 0, 0 }, \\r
403	{ 0, 0 }, \\r
404	{ 0, 0 }, \\r
405	{ 0, 0 }, \\r
406	{ 0, 0 }, \\r
407	{ 0, 0 }, \\r
408	{ 0, 0 }, \\r
409	{ 0, 0 }, \\r
410	{ 0, 0 }, \\r
411	{ 0, 0 }, \\r
412	{ 0, 0 }, \\r
413	{ 0, 0 }, \\r
414	{ 0, 0 }, \\r
415	{ 0, 0 }, \\r
416	{ 0, 0 }, \\r
417	{ 0, 0 }, \\r
418	{ 0, 0 }, \\r
419	{ 0, 0 }, \\r
420	{ 0, 0 }, \\r
421	{ 0, 0 }, \\r
422	{ "pim", CTLTYPE_NODE }, \\r
423	}\r
424	\r
425	/*\r
426	* Names for IP sysctl objects\r
427	*/\r
428	#define IPCTL_FORWARDING 1 /* act as router */\r
429	#define IPCTL_SENDREDIRECTS 2 /* may send redirects when forwarding */\r
430	#define IPCTL_DEFTTL 3 /* default TTL */\r
431	#ifdef notyet\r
432	#define IPCTL_DEFMTU 4 /* default MTU */\r
433	#endif\r
434	#define IPCTL_FORWSRCRT 5 /* forward source-routed packets */\r
435	#define IPCTL_DIRECTEDBCAST 6 /* default broadcast behavior */\r
436	#define IPCTL_ALLOWSRCRT 7 /* allow/drop all source-routed pkts */\r
437	#define IPCTL_SUBNETSARELOCAL 8 /* treat subnets as local addresses */\r
438	#define IPCTL_MTUDISC 9 /* allow path MTU discovery */\r
439	#define IPCTL_ANONPORTMIN 10 /* minimum ephemeral port */\r
440	#define IPCTL_ANONPORTMAX 11 /* maximum ephemeral port */\r
441	#define IPCTL_MTUDISCTIMEOUT 12 /* allow path MTU discovery */\r
442	#define IPCTL_MAXFLOWS 13 /* maximum ip flows allowed */\r
443	#define IPCTL_HOSTZEROBROADCAST 14 /* is host zero a broadcast addr? */\r
444	#define IPCTL_GIF_TTL 15 /* default TTL for gif encap packet */\r
445	#define IPCTL_LOWPORTMIN 16 /* minimum reserved port */\r
446	#define IPCTL_LOWPORTMAX 17 /* maximum reserved port */\r
447	#define IPCTL_MAXFRAGPACKETS 18 /* max packets reassembly queue */\r
448	#define IPCTL_GRE_TTL 19 /* default TTL for gre encap packet */\r
449	#define IPCTL_CHECKINTERFACE 20 /* drop pkts in from 'wrong' iface */\r
450	#define IPCTL_IFQ 21 /* ipintrq node */\r
451	#define IPCTL_RANDOMID 22 /* use random IP ids (if configured) */\r
452	#define IPCTL_LOOPBACKCKSUM 23 /* do IP checksum on loopback */\r
453	#define IPCTL_STATS 24 /* IP statistics */\r
454	#define IPCTL_MAXID 25\r
455	\r
456	#define IPCTL_NAMES { \\r
457	{ 0, 0 }, \\r
458	{ "forwarding", CTLTYPE_INT }, \\r
459	{ "redirect", CTLTYPE_INT }, \\r
460	{ "ttl", CTLTYPE_INT }, \\r
461	{ "mtu", CTLTYPE_INT }, \\r
462	{ "forwsrcrt", CTLTYPE_INT }, \\r
463	{ "directed-broadcast", CTLTYPE_INT }, \\r
464	{ "allowsrcrt", CTLTYPE_INT }, \\r
465	{ "subnetsarelocal", CTLTYPE_INT }, \\r
466	{ "mtudisc", CTLTYPE_INT }, \\r
467	{ "anonportmin", CTLTYPE_INT }, \\r
468	{ "anonportmax", CTLTYPE_INT }, \\r
469	{ "mtudisctimeout", CTLTYPE_INT }, \\r
470	{ "maxflows", CTLTYPE_INT }, \\r
471	{ "hostzerobroadcast", CTLTYPE_INT }, \\r
472	{ "gifttl", CTLTYPE_INT }, \\r
473	{ "lowportmin", CTLTYPE_INT }, \\r
474	{ "lowportmax", CTLTYPE_INT }, \\r
475	{ "maxfragpackets", CTLTYPE_INT }, \\r
476	{ "grettl", CTLTYPE_INT }, \\r
477	{ "checkinterface", CTLTYPE_INT }, \\r
478	{ "ifq", CTLTYPE_NODE }, \\r
479	{ "random_id", CTLTYPE_INT }, \\r
480	{ "do_loopback_cksum", CTLTYPE_INT }, \\r
481	{ "stats", CTLTYPE_STRUCT }, \\r
482	}\r
483	#endif /* _NETBSD_SOURCE */\r
484	\r
485	/* INET6 stuff */\r
486	#define __KAME_NETINET_IN_H_INCLUDED_\r
487	#include <netinet6/in6.h>\r
488	#undef __KAME_NETINET_IN_H_INCLUDED_\r
489	\r
490	#ifdef _KERNEL\r
491	/*\r
492	* in_cksum_phdr:\r
493	*\r
494	* Compute significant parts of the IPv4 checksum pseudo-header\r
495	* for use in a delayed TCP/UDP checksum calculation.\r
496	*\r
497	* Args:\r
498	*\r
499	* src Source IP address\r
500	* dst Destination IP address\r
501	* lenproto htons(proto-hdr-len + proto-number)\r
502	*/\r
503	static __inline u_int16_t __attribute__((__unused__))\r
504	in_cksum_phdr(u_int32_t src, u_int32_t dst, u_int32_t lenproto)\r
505	{\r
506	u_int32_t sum;\r
507	\r
508	sum = lenproto +\r
509	(u_int16_t)(src >> 16) +\r
510	(u_int16_t)(src /& 0xffff/) +\r
511	(u_int16_t)(dst >> 16) +\r
512	(u_int16_t)(dst /& 0xffff/);\r
513	\r
514	sum = (u_int16_t)(sum >> 16) + (u_int16_t)(sum /& 0xffff/);\r
515	\r
516	if (sum > 0xffff)\r
517	sum -= 0xffff;\r
518	\r
519	return (sum);\r
520	}\r
521	\r
522	/*\r
523	* in_cksum_addword:\r
524	*\r
525	* Add the two 16-bit network-order values, carry, and return.\r
526	*/\r
527	static __inline u_int16_t __attribute__((__unused__))\r
528	in_cksum_addword(u_int16_t a, u_int16_t b)\r
529	{\r
530	u_int32_t sum = a + b;\r
531	\r
532	if (sum > 0xffff)\r
533	sum -= 0xffff;\r
534	\r
535	return (sum);\r
536	}\r
537	\r
538	extern struct in_addr zeroin_addr;\r
539	extern u_char ip_protox[];\r
540	\r
541	int in_broadcast(struct in_addr, struct ifnet *);\r
542	int in_canforward(struct in_addr);\r
543	int in_cksum(struct mbuf *, int);\r
544	int in4_cksum(struct mbuf *, u_int8_t, int, int);\r
545	void in_delayed_cksum(struct mbuf *);\r
546	int in_localaddr(struct in_addr);\r
547	void in_socktrim(struct sockaddr_in *);\r
548	\r
549	#define in_hosteq(s,t) ((s).s_addr == (t).s_addr)\r
550	#define in_nullhost(x) ((x).s_addr == INADDR_ANY)\r
551	\r
552	#define satosin(sa) ((struct sockaddr_in *)(sa))\r
553	#define sintosa(sin) ((struct sockaddr *)(sin))\r
554	#define ifatoia(ifa) ((struct in_ifaddr *)(ifa))\r
555	#endif /* _KERNEL */\r
556	\r
557	#endif /* !_NETINET_IN_H_ */\r