// © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 /*-

  * 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.

  * 4. 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

  * $FreeBSD: src/sys/netinet/in.h,v 1.90.2.3 2005/10/02 15:45:47 andre Exp $

  */

 #ifndef _NETINET_IN_H_

 #define	_NETINET_IN_H_

 #include <sys/cdefs.h>

 #include <sys/_types.h>

 #include <stdapis/machine/endian.h>

 /* Protocols common to RFC 1700, POSIX, and X/Open. */

 #ifdef __SYMBIAN32__

 #define	IPPROTO_IP		0x100	/* KProtocolInetIp */

 #else

 #define	IPPROTO_IP		0		/* dummy for IP */

 #endif	// __SYMBIAN32__

 #define	IPPROTO_ICMP		1		/* control message protocol KProtocolInetIcmp */

 #define	IPPROTO_TCP		6		/* tcp  KProtocolInetTcp */

 #define	IPPROTO_UDP		17		/* user datagram protocol KProtocolInetUdp */

 #define	INADDR_ANY		(u_int32_t)0x00000000

 #define	INADDR_BROADCAST	(u_int32_t)0xffffffff	/* must be masked */

 #ifndef _UINT8_T_DECLARED

 typedef	__uint8_t		uint8_t;

 #define	_UINT8_T_DECLARED

 #endif

 #ifndef _UINT16_T_DECLARED

 typedef	__uint16_t		uint16_t;

 #define	_UINT16_T_DECLARED

 #endif

 #ifndef _UINT32_T_DECLARED

 typedef	__uint32_t		uint32_t;

 #define	_UINT32_T_DECLARED

 #endif

 #ifndef _IN_ADDR_T_DECLARED

 typedef	uint32_t		in_addr_t;

 #define	_IN_ADDR_T_DECLARED

 #endif

 #ifndef _IN_PORT_T_DECLARED

 typedef	uint16_t		in_port_t;

 #define	_IN_PORT_T_DECLARED

 #endif

 #ifndef _SA_FAMILY_T_DECLARED

 typedef	__sa_family_t		sa_family_t;

 #define	_SA_FAMILY_T_DECLARED

 #endif

 /* Internet address (a structure for historical reasons). */

 #ifndef	_STRUCT_IN_ADDR_DECLARED

 struct in_addr {

 	in_addr_t s_addr;

 };

 #define	_STRUCT_IN_ADDR_DECLARED

 #endif

 /* Socket address, internet style. */

 #ifdef __SYMBIAN32__

 struct sockaddr_in {

 	u_short	sin_family;

 	u_short	sin_port;

 	struct	in_addr sin_addr;

 	char	sin_zero[20];

 };

 #else

 struct sockaddr_in {

 	uint8_t	sin_len;

 	sa_family_t	sin_family;

 	in_port_t	sin_port;

 	struct	in_addr sin_addr;

 	char	sin_zero[8];

 };

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define SOL_IP		0x100	/* options for IP level KSolInetIp */

 #define SOL_TCP		0x106	/* options for TCP level KSolInetTcp */

 /*

  * User-settable options (used with setsockopt).

  */

 #define	TCP_NODELAY	0x304	/* don't delay send to coalesce packets KSoTcpNoDelay */

 #define	TCP_MAXSEG	0x303	/* set maximum segment size KSoTcpMaxSegSize */

 #endif //__SYMBIAN32__

 #ifndef _KERNEL

 #ifndef _BYTEORDER_PROTOTYPED

 #define	_BYTEORDER_PROTOTYPED

 __BEGIN_DECLS

 IMPORT_C uint32_t	htonl(uint32_t);

 IMPORT_C uint16_t	htons(uint16_t);

 uint32_t	ntohl(uint32_t);

 uint16_t	ntohs(uint16_t);

 __END_DECLS

 #endif

 #ifndef _BYTEORDER_FUNC_DEFINED

 #define	_BYTEORDER_FUNC_DEFINED

 #define	htonl(x)	__htonl(x)

 #define	htons(x)	__htons(x)

 #define	ntohl(x)	__ntohl(x)

 #define	ntohs(x)	__ntohs(x)

 #endif

 #endif /* !_KERNEL */

 #if __POSIX_VISIBLE >= 200112

 #define	IPPROTO_RAW		255		/* raw IP packet */

 #define	INET_ADDRSTRLEN		16

 #endif

 #if __BSD_VISIBLE

 /*

  * Constants and structures defined by the internet system,

  * Per RFC 790, September 1981, and numerous additions.

  */

 /*

  * Protocols (RFC 1700)

  */

 #define	IPPROTO_HOPOPTS		0		/* IP6 hop-by-hop options */

 #define	IPPROTO_IGMP		2		/* group mgmt protocol */

 #define	IPPROTO_GGP		3		/* gateway^2 (deprecated) */

 #define	IPPROTO_IPV4		4		/* IPv4 encapsulation */

 #define	IPPROTO_IPIP		IPPROTO_IPV4	/* for compatibility */

 #define	IPPROTO_ST		7		/* Stream protocol II */

 #define	IPPROTO_EGP		8		/* exterior gateway protocol */

 #define	IPPROTO_PIGP		9		/* private interior gateway */

 #define	IPPROTO_RCCMON		10		/* BBN RCC Monitoring */

 #define	IPPROTO_NVPII		11		/* network voice protocol*/

 #define	IPPROTO_PUP		12		/* pup */

 #define	IPPROTO_ARGUS		13		/* Argus */

 #define	IPPROTO_EMCON		14		/* EMCON */

 #define	IPPROTO_XNET		15		/* Cross Net Debugger */

 #define	IPPROTO_CHAOS		16		/* Chaos*/

 #define	IPPROTO_MUX		18		/* Multiplexing */

 #define	IPPROTO_MEAS		19		/* DCN Measurement Subsystems */

 #define	IPPROTO_HMP		20		/* Host Monitoring */

 #define	IPPROTO_PRM		21		/* Packet Radio Measurement */

 #define	IPPROTO_IDP		22		/* xns idp */

 #define	IPPROTO_TRUNK1		23		/* Trunk-1 */

 #define	IPPROTO_TRUNK2		24		/* Trunk-2 */

 #define	IPPROTO_LEAF1		25		/* Leaf-1 */

 #define	IPPROTO_LEAF2		26		/* Leaf-2 */

 #define	IPPROTO_RDP		27		/* Reliable Data */

 #define	IPPROTO_IRTP		28		/* Reliable Transaction */

 #define	IPPROTO_TP		29		/* tp-4 w/ class negotiation */

 #define	IPPROTO_BLT		30		/* Bulk Data Transfer */

 #define	IPPROTO_NSP		31		/* Network Services */

 #define	IPPROTO_INP		32		/* Merit Internodal */

 #define	IPPROTO_SEP		33		/* Sequential Exchange */

 #define	IPPROTO_3PC		34		/* Third Party Connect */

 #define	IPPROTO_IDPR		35		/* InterDomain Policy Routing */

 #define	IPPROTO_XTP		36		/* XTP */

 #define	IPPROTO_DDP		37		/* Datagram Delivery */

 #define	IPPROTO_CMTP		38		/* Control Message Transport */

 #define	IPPROTO_TPXX		39		/* TP++ Transport */

 #define	IPPROTO_IL		40		/* IL transport protocol */

 #define	IPPROTO_IPV6		41		/* IP6 header */

 #define	IPPROTO_SDRP		42		/* Source Demand Routing */

 #define	IPPROTO_ROUTING		43		/* IP6 routing header */

 #define	IPPROTO_FRAGMENT	44		/* IP6 fragmentation header */

 #define	IPPROTO_IDRP		45		/* InterDomain Routing*/

 #define	IPPROTO_RSVP		46		/* resource reservation */

 #define	IPPROTO_GRE		47		/* General Routing Encap. */

 #define	IPPROTO_MHRP		48		/* Mobile Host Routing */

 #define	IPPROTO_BHA		49		/* BHA */

 #define	IPPROTO_ESP		50		/* IP6 Encap Sec. Payload */

 #define	IPPROTO_AH		51		/* IP6 Auth Header */

 #define	IPPROTO_INLSP		52		/* Integ. Net Layer Security */

 #define	IPPROTO_SWIPE		53		/* IP with encryption */

 #define	IPPROTO_NHRP		54		/* Next Hop Resolution */

 #define	IPPROTO_MOBILE		55		/* IP Mobility */

 #define	IPPROTO_TLSP		56		/* Transport Layer Security */

 #define	IPPROTO_SKIP		57		/* SKIP */

 #define	IPPROTO_ICMPV6		58		/* ICMP6 */

 #define	IPPROTO_NONE		59		/* IP6 no next header */

 #define	IPPROTO_DSTOPTS		60		/* IP6 destination option */

 #define	IPPROTO_AHIP		61		/* any host internal protocol */

 #define	IPPROTO_CFTP		62		/* CFTP */

 #define	IPPROTO_HELLO		63		/* "hello" routing protocol */

 #define	IPPROTO_SATEXPAK	64		/* SATNET/Backroom EXPAK */

 #define	IPPROTO_KRYPTOLAN	65		/* Kryptolan */

 #define	IPPROTO_RVD		66		/* Remote Virtual Disk */

 #define	IPPROTO_IPPC		67		/* Pluribus Packet Core */

 #define	IPPROTO_ADFS		68		/* Any distributed FS */

 #define	IPPROTO_SATMON		69		/* Satnet Monitoring */

 #define	IPPROTO_VISA		70		/* VISA Protocol */

 #define	IPPROTO_IPCV		71		/* Packet Core Utility */

 #define	IPPROTO_CPNX		72		/* Comp. Prot. Net. Executive */

 #define	IPPROTO_CPHB		73		/* Comp. Prot. HeartBeat */

 #define	IPPROTO_WSN		74		/* Wang Span Network */

 #define	IPPROTO_PVP		75		/* Packet Video Protocol */

 #define	IPPROTO_BRSATMON	76		/* BackRoom SATNET Monitoring */

 #define	IPPROTO_ND		77		/* Sun net disk proto (temp.) */

 #define	IPPROTO_WBMON		78		/* WIDEBAND Monitoring */

 #define	IPPROTO_WBEXPAK		79		/* WIDEBAND EXPAK */

 #define	IPPROTO_EON		80		/* ISO cnlp */

 #define	IPPROTO_VMTP		81		/* VMTP */

 #define	IPPROTO_SVMTP		82		/* Secure VMTP */

 #define	IPPROTO_VINES		83		/* Banyon VINES */

 #define	IPPROTO_TTP		84		/* TTP */

 #define	IPPROTO_IGP		85		/* NSFNET-IGP */

 #define	IPPROTO_DGP		86		/* dissimilar gateway prot. */

 #define	IPPROTO_TCF		87		/* TCF */

 #define	IPPROTO_IGRP		88		/* Cisco/GXS IGRP */

 #define	IPPROTO_OSPFIGP		89		/* OSPFIGP */

 #define	IPPROTO_SRPC		90		/* Strite RPC protocol */

 #define	IPPROTO_LARP		91		/* Locus Address Resoloution */

 #define	IPPROTO_MTP		92		/* Multicast Transport */

 #define	IPPROTO_AX25		93		/* AX.25 Frames */

 #define	IPPROTO_IPEIP		94		/* IP encapsulated in IP */

 #define	IPPROTO_MICP		95		/* Mobile Int.ing control */

 #define	IPPROTO_SCCSP		96		/* Semaphore Comm. security */

 #define	IPPROTO_ETHERIP		97		/* Ethernet IP encapsulation */

 #ifdef __SYMBIAN32__

 #define	IPPROTO_ENCAP		4		/* IP in IP encapsulation */

 #else

 #define	IPPROTO_ENCAP		98		/* encapsulation header */

 #endif	// __SYMBIAN32__

 #define	IPPROTO_APES		99		/* any private encr. scheme */

 #define	IPPROTO_GMTP		100		/* GMTP*/

 #define	IPPROTO_IPCOMP		108		/* payload compression (IPComp) */

 /* 101-254: Partly Unassigned */

 #define	IPPROTO_PIM		103		/* Protocol Independent Mcast */

 #define	IPPROTO_CARP		112		/* CARP */

 #define	IPPROTO_PGM		113		/* PGM */

 #define	IPPROTO_PFSYNC		240		/* PFSYNC */

 /* 255: Reserved */

 /* BSD Private, local use, namespace incursion, no longer used */

 #define	IPPROTO_OLD_DIVERT	254		/* OLD divert pseudo-proto */

 #ifdef __SYMBIAN32__

 #define	IPPROTO_MAX		0x101

 #else

 #define	IPPROTO_MAX		256

 #endif	// __SYMBIAN32__

 /* last return value of *_input(), meaning "all job for this pkt is done".  */

 #define	IPPROTO_DONE		257

 /* Only used internally, so can be outside the range of valid IP protocols. */

 #define	IPPROTO_DIVERT		258		/* divert pseudo-protocol */

 /*

  * Defined to avoid confusion.  The master value is defined by

  * PROTO_SPACER in sys/protosw.h.

  */

 #define	IPPROTO_SPACER		32767		/* spacer for loadable protos */

 /*

  * Local port number conventions:

  *

  * 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_HIFIRSTAUTO through

  * IPPORT_HILASTAUTO, although that is settable by sysctl.

  *

  * 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 changes the range of candidate port numbers

  * into the "high" range.  These are reserved for client outbound connections

  * which do not want to be filtered by any firewalls.  Note that by default

  * this is the same as IP_PORTRANGE_DEFAULT.

  *

  * 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 default range of ports and the high range can be changed by

  * sysctl(3).  (net.inet.ip.port{hi,low}{first,last}_auto)

  *

  * Changing those values has bad security implications if you are

  * using a stateless firewall that is allowing packets outside of that

  * range in order to allow transparent outgoing connections.

  *

  * Such a firewall configuration will generally depend on the use of these

  * default values.  If you change them, you may find your Security

  * Administrator looking for you with a heavy object.

  *

  * For a slightly more orthodox text view on this:

  *

  *            ftp://ftp.isi.edu/in-notes/iana/assignments/port-numbers

  *

  *    port numbers are divided into three ranges:

  *

  *                0 -  1023 Well Known Ports

  *             1024 - 49151 Registered Ports

  *            49152 - 65535 Dynamic and/or Private Ports

  *

  */

 /*

  * Ports < IPPORT_RESERVED are reserved for

  * privileged processes (e.g. root).         (IP_PORTRANGE_LOW)

  */

 #define	IPPORT_RESERVED		1024

 /*

  * Default local port range, used by both IP_PORTRANGE_DEFAULT

  * and IP_PORTRANGE_HIGH.

  */

 #define	IPPORT_HIFIRSTAUTO	49152

 #define	IPPORT_HILASTAUTO	65535

 /*

  * Scanning for a free reserved port return a value below IPPORT_RESERVED,

  * but higher than IPPORT_RESERVEDSTART.  Traditionally the start value was

  * 512, but that conflicts with some well-known-services that firewalls may

  * have a fit if we use.

  */

 #define	IPPORT_RESERVEDSTART	600

 #define	IPPORT_MAX		65535

 /*

  * Definitions of bits in internet address integers.

  * On subnets, the decomposition of addresses to host and net parts

  * is done according to subnet mask, not the masks here.

  */

 #define	IN_CLASSA(i)		(((u_int32_t)(i) & 0x80000000) == 0)

 #define	IN_CLASSA_NET		0xff000000

 #define	IN_CLASSA_NSHIFT	24

 #define	IN_CLASSA_HOST		0x00ffffff

 #define	IN_CLASSA_MAX		128

 #define	IN_CLASSB(i)		(((u_int32_t)(i) & 0xc0000000) == 0x80000000)

 #define	IN_CLASSB_NET		0xffff0000

 #define	IN_CLASSB_NSHIFT	16

 #define	IN_CLASSB_HOST		0x0000ffff

 #define	IN_CLASSB_MAX		65536

 #define	IN_CLASSC(i)		(((u_int32_t)(i) & 0xe0000000) == 0xc0000000)

 #define	IN_CLASSC_NET		0xffffff00

 #define	IN_CLASSC_NSHIFT	8

 #define	IN_CLASSC_HOST		0x000000ff

 #define	IN_CLASSD(i)		(((u_int32_t)(i) & 0xf0000000) == 0xe0000000)

 #define	IN_CLASSD_NET		0xf0000000	/* These ones aren't really */

 #define	IN_CLASSD_NSHIFT	28		/* net and host fields, but */

 #define	IN_CLASSD_HOST		0x0fffffff	/* routing needn't know.    */

 #define	IN_MULTICAST(i)		IN_CLASSD(i)

 #define	IN_EXPERIMENTAL(i)	(((u_int32_t)(i) & 0xf0000000) == 0xf0000000)

 #define	IN_BADCLASS(i)		(((u_int32_t)(i) & 0xf0000000) == 0xf0000000)

 #define	INADDR_LOOPBACK		(u_int32_t)0x7f000001

 #ifndef _KERNEL

 #define	INADDR_NONE		0xffffffff		/* -1 return */

 #endif

 #define	INADDR_UNSPEC_GROUP	(u_int32_t)0xe0000000	/* 224.0.0.0 */

 #define	INADDR_ALLHOSTS_GROUP	(u_int32_t)0xe0000001	/* 224.0.0.1 */

 #define	INADDR_ALLRTRS_GROUP	(u_int32_t)0xe0000002	/* 224.0.0.2 */

 #define	INADDR_CARP_GROUP	(u_int32_t)0xe0000012	/* 224.0.0.18 */

 #define	INADDR_PFSYNC_GROUP	(u_int32_t)0xe00000f0	/* 224.0.0.240 */

 #define	INADDR_ALLMDNS_GROUP	(u_int32_t)0xe00000fb	/* 224.0.0.251 */

 #define	INADDR_MAX_LOCAL_GROUP	(u_int32_t)0xe00000ff	/* 224.0.0.255 */

 #define	IN_LOOPBACKNET		127			/* official! */

 /*

  * Options for use with [gs]etsockopt at the IP level.

  * First word of comment is data type; bool is stored in int.

  */

 #ifdef __SYMBIAN32__

 #define	IP_OPTIONS		0x306   /* buf/ip_opts; set/get IP options */

 #else

 #define	IP_OPTIONS		1		/* buf/ip_opts; set/get IP options */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_HDRINCL		0x308	/* int; header is included with data */

 #else

 #define	IP_HDRINCL		2		/* int; header is included with data */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_TOS			0x309	/* int; IP type of service and preced. */

 #else

 #define	IP_TOS			3		/* int; IP type of service and preced. */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_TTL			0x310	/* int; IP time to live */

 #else

 #define	IP_TTL			4    /* int; IP time to live */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_RECVOPTS		-1    /* bool; receive all IP opts w/dgram */

 #else

 #define	IP_RECVOPTS		5    /* bool; receive all IP opts w/dgram */

 #endif

 #ifdef __SYMBIAN32__

 #define	IP_RECVRETOPTS		-2    /* bool; receive IP opts for response */

 #else

 #define	IP_RECVRETOPTS		6    /* bool; receive IP opts for response */

 #endif

 #ifdef __SYMBIAN32__

 #define	IP_RECVDSTADDR		-3    /* bool; receive IP dst addr w/dgram */

 #else

 #define	IP_RECVDSTADDR		7    /* bool; receive IP dst addr w/dgram */

 #endif

 #define	IP_SENDSRCADDR		IP_RECVDSTADDR /* cmsg_type to set src addr */

 #ifdef __SYMBIAN32__

 #define	IP_RETOPTS		-4    /* ip_opts; set/get IP options */

 #else

 #define	IP_RETOPTS		8    /* ip_opts; set/get IP options */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_MULTICAST_IF		-5	/* set/get IP multicast interface  */

 #else

 #define	IP_MULTICAST_IF		9    /* u_char; set/get IP multicast i/f  */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_MULTICAST_TTL	-6	/* set/get IP multicast timetolive */

 #else

 #define	IP_MULTICAST_TTL	10   /* u_char; set/get IP multicast ttl */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_MULTICAST_LOOP	-7   /* u_char; set/get IP multicast loopback */

 #else

 #define	IP_MULTICAST_LOOP	11   /* u_char; set/get IP multicast loopback */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_ADD_MEMBERSHIP	0x46d   /* ip_mreq; add an IP group membership */

 #else

 #define	IP_ADD_MEMBERSHIP	12   /* ip_mreq; add an IP group membership */

 #endif	// __SYMBIAN32__

 #ifdef __SYMBIAN32__

 #define	IP_DROP_MEMBERSHIP	0x46e   /* ip_mreq; drop an IP group membership */

 #else

 #define	IP_DROP_MEMBERSHIP	13   /* ip_mreq; drop an IP group membership */

 #endif	// __SYMBIAN32__

 #define	IP_MULTICAST_VIF	14   /* set/get IP mcast virt. iface */

 #define	IP_RSVP_ON		15   /* enable RSVP in kernel */

 #define	IP_RSVP_OFF		16   /* disable RSVP in kernel */

 #define	IP_RSVP_VIF_ON		17   /* set RSVP per-vif socket */

 #define	IP_RSVP_VIF_OFF		18   /* unset RSVP per-vif socket */

 #define	IP_PORTRANGE		19   /* int; range to choose for unspec port */

 #define	IP_RECVIF		20   /* bool; receive reception if w/dgram */

 /* for IPSEC */

 #define	IP_IPSEC_POLICY		21   /* int; set/get security policy */

 #define	IP_FAITH		22   /* bool; accept FAITH'ed connections */

 #define	IP_ONESBCAST		23   /* bool: send all-ones broadcast */

 #define	IP_FW_TABLE_ADD		40   /* add entry */

 #define	IP_FW_TABLE_DEL		41   /* delete entry */

 #define	IP_FW_TABLE_FLUSH	42   /* flush table */

 #define	IP_FW_TABLE_GETSIZE	43   /* get table size */

 #define	IP_FW_TABLE_LIST	44   /* list table contents */

 #define	IP_FW_ADD		50   /* add a firewall rule to chain */

 #define	IP_FW_DEL		51   /* delete a firewall rule from chain */

 #define	IP_FW_FLUSH		52   /* flush firewall rule chain */

 #define	IP_FW_ZERO		53   /* clear single/all firewall counter(s) */

 #define	IP_FW_GET		54   /* get entire firewall rule chain */

 #define	IP_FW_RESETLOG		55   /* reset logging counters */

 #define	IP_DUMMYNET_CONFIGURE	60   /* add/configure a dummynet pipe */

 #define	IP_DUMMYNET_DEL		61   /* delete a dummynet pipe from chain */

 #define	IP_DUMMYNET_FLUSH	62   /* flush dummynet */

 #define	IP_DUMMYNET_GET		64   /* get entire dummynet pipes */

 #define	IP_RECVTTL		65   /* bool; receive IP TTL w/dgram */

 #define	IP_MINTTL		66   /* minimum TTL for packet or drop */

 #define	IP_DONTFRAG		67   /* don't fragment packet */

 /*

  * 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 */

 /*

  * 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	/* "high" - request firewall bypass */

 #define	IP_PORTRANGE_LOW	2	/* "low" - vouchsafe security */

 /*

  * Definitions for inet sysctl operations.

  *

  * Third level is protocol number.

  * Fourth level is desired variable within that protocol.

  */

 #define	IPPROTO_MAXID	(IPPROTO_AH + 1)	/* don't list to IPPROTO_MAX */

 #define	CTL_IPPROTO_NAMES { \

 	{ "ip", CTLTYPE_NODE }, \

 	{ "icmp", CTLTYPE_NODE }, \

 	{ "igmp", CTLTYPE_NODE }, \

 	{ "ggp", CTLTYPE_NODE }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ "tcp", CTLTYPE_NODE }, \

 	{ 0, 0 }, \

 	{ "egp", CTLTYPE_NODE }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ "pup", CTLTYPE_NODE }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ "udp", CTLTYPE_NODE }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ "idp", CTLTYPE_NODE }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ "ipsec", CTLTYPE_NODE }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ 0, 0 }, \

 	{ "pim", CTLTYPE_NODE }, \

 }

 /*

  * Names for IP sysctl objects

  */

 #define	IPCTL_FORWARDING	1	/* act as router */

 #define	IPCTL_SENDREDIRECTS	2	/* may send redirects when forwarding */

 #define	IPCTL_DEFTTL		3	/* default TTL */

 #ifdef notyet

 #define	IPCTL_DEFMTU		4	/* default MTU */

 #endif

 #define	IPCTL_RTEXPIRE		5	/* cloned route expiration time */

 #define	IPCTL_RTMINEXPIRE	6	/* min value for expiration time */

 #define	IPCTL_RTMAXCACHE	7	/* trigger level for dynamic expire */

 #define	IPCTL_SOURCEROUTE	8	/* may perform source routes */

 #define	IPCTL_DIRECTEDBROADCAST	9	/* may re-broadcast received packets */

 #define	IPCTL_INTRQMAXLEN	10	/* max length of netisr queue */

 #define	IPCTL_INTRQDROPS	11	/* number of netisr q drops */

 #define	IPCTL_STATS		12	/* ipstat structure */

 #define	IPCTL_ACCEPTSOURCEROUTE	13	/* may accept source routed packets */

 #define	IPCTL_FASTFORWARDING	14	/* use fast IP forwarding code */

 #define	IPCTL_KEEPFAITH		15	/* FAITH IPv4->IPv6 translater ctl */

 #define	IPCTL_GIF_TTL		16	/* default TTL for gif encap packet */

 #define	IPCTL_MAXID		17

 #define	IPCTL_NAMES { \

 	{ 0, 0 }, \

 	{ "forwarding", CTLTYPE_INT }, \

 	{ "redirect", CTLTYPE_INT }, \

 	{ "ttl", CTLTYPE_INT }, \

 	{ "mtu", CTLTYPE_INT }, \

 	{ "rtexpire", CTLTYPE_INT }, \

 	{ "rtminexpire", CTLTYPE_INT }, \

 	{ "rtmaxcache", CTLTYPE_INT }, \

 	{ "sourceroute", CTLTYPE_INT }, \

 	{ "directed-broadcast", CTLTYPE_INT }, \

 	{ "intr-queue-maxlen", CTLTYPE_INT }, \

 	{ "intr-queue-drops", CTLTYPE_INT }, \

 	{ "stats", CTLTYPE_STRUCT }, \

 	{ "accept_sourceroute", CTLTYPE_INT }, \

 	{ "fastforwarding", CTLTYPE_INT }, \

 }

 #endif /* __BSD_VISIBLE */

 #ifdef _KERNEL

 struct ifnet; struct mbuf;	/* forward declarations for Standard C */

 char	*inet_ntoa(struct in_addr); /* in libkern */

 #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))

 #define	ifatoia(ifa)	((struct in_ifaddr *)(ifa))

 #endif /* _KERNEL */

 /* INET6 stuff */

 #if __POSIX_VISIBLE >= 200112

 #define	__KAME_NETINET_IN_H_INCLUDED_

 #include <stdapis/netinet6/in6.h>

 #undef __KAME_NETINET_IN_H_INCLUDED_

 #endif

 #ifndef _KERNEL

 __BEGIN_DECLS

 IMPORT_C int bindresvport (int __sockfd, struct sockaddr_in *__sock_in);

 __END_DECLS

 #endif /* _KERNEL */

 #endif /* !_NETINET_IN_H_*/