src/parsec/disk-image/parsec/parsec-benchmark/pkgs/libs/uptcpip/src/include/netinet/bsd_ip_var.h - public/gem5-resources - Git at Google

 /*-
  * Copyright (c) 1982, 1986, 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.
  *
  *	@(#)ip_var.h	8.2 (Berkeley) 1/9/95
  * $FreeBSD$
  */

 #ifndef _BSD_NETINET_IP_VAR_H_
 #define	_BSD_NETINET_IP_VAR_H_

 #include <sys/bsd_queue.h>

 /*
  * Overlay for ip header used by other protocols (tcp, udp).
  */
 struct ipovly {
 	u_char	ih_x1[9];		/* (unused) */
 	u_char	ih_pr;			/* protocol */
 	u_short	ih_len;			/* protocol length */
 	struct	in_addr ih_src;		/* source internet address */
 	struct	in_addr ih_dst;		/* destination internet address */
 };

 #ifdef _FREEBSD_KERNEL
 /*
  * Ip reassembly queue structure.  Each fragment
  * being reassembled is attached to one of these structures.
  * They are timed out after ipq_ttl drops to 0, and may also
  * be reclaimed if memory becomes tight.
  */
 struct ipq {
 	TAILQ_ENTRY(ipq) ipq_list;	/* to other reass headers */
 	u_char	ipq_ttl;		/* time for reass q to live */
 	u_char	ipq_p;			/* protocol of this fragment */
 	u_short	ipq_id;			/* sequence id for reassembly */
 	struct mbuf *ipq_frags;		/* to ip headers of fragments */
 	struct	in_addr ipq_src,ipq_dst;
 	u_char	ipq_nfrags;		/* # frags in this packet */
 	struct label *ipq_label;	/* MAC label */
 };
 #endif /* _FREEBSD_KERNEL */

 /*
  * Structure stored in mbuf in inpcb.ip_options
  * and passed to ip_output when ip options are in use.
  * The actual length of the options (including ipopt_dst)
  * is in m_len.
  */
 #define MAX_IPOPTLEN	40

 struct ipoption {
 	struct	in_addr ipopt_dst;	/* first-hop dst if source routed */
 	char	ipopt_list[MAX_IPOPTLEN];	/* options proper */
 };

 /*
  * Structure attached to inpcb.ip_moptions and
  * passed to ip_output when IP multicast options are in use.
  * This structure is lazy-allocated.
  */
 struct ip_moptions {
 	struct	ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
 	struct in_addr imo_multicast_addr; /* ifindex/addr on MULTICAST_IF */
 	u_long	imo_multicast_vif;	/* vif num outgoing multicasts */
 	u_char	imo_multicast_ttl;	/* TTL for outgoing multicasts */
 	u_char	imo_multicast_loop;	/* 1 => hear sends if a member */
 	u_short	imo_num_memberships;	/* no. memberships this socket */
 	u_short	imo_max_memberships;	/* max memberships this socket */
 	struct	in_multi **imo_membership;	/* group memberships */
 	struct	in_mfilter *imo_mfilters;	/* source filters */
 };

 struct	ipstat {
 	u_long	ips_total;		/* total packets received */
 	u_long	ips_badsum;		/* checksum bad */
 	u_long	ips_tooshort;		/* packet too short */
 	u_long	ips_toosmall;		/* not enough data */
 	u_long	ips_badhlen;		/* ip header length < data size */
 	u_long	ips_badlen;		/* ip length < ip header length */
 	u_long	ips_fragments;		/* fragments received */
 	u_long	ips_fragdropped;	/* frags dropped (dups, out of space) */
 	u_long	ips_fragtimeout;	/* fragments timed out */
 	u_long	ips_forward;		/* packets forwarded */
 	u_long	ips_fastforward;	/* packets fast forwarded */
 	u_long	ips_cantforward;	/* packets rcvd for unreachable dest */
 	u_long	ips_redirectsent;	/* packets forwarded on same net */
 	u_long	ips_noproto;		/* unknown or unsupported protocol */
 	u_long	ips_delivered;		/* datagrams delivered to upper level*/
 	u_long	ips_localout;		/* total ip packets generated here */
 	u_long	ips_odropped;		/* lost packets due to nobufs, etc. */
 	u_long	ips_reassembled;	/* total packets reassembled ok */
 	u_long	ips_fragmented;		/* datagrams successfully fragmented */
 	u_long	ips_ofragments;		/* output fragments created */
 	u_long	ips_cantfrag;		/* don't fragment flag was set, etc. */
 	u_long	ips_badoptions;		/* error in option processing */
 	u_long	ips_noroute;		/* packets discarded due to no route */
 	u_long	ips_badvers;		/* ip version != 4 */
 	u_long	ips_rawout;		/* total raw ip packets generated */
 	u_long	ips_toolong;		/* ip length > max ip packet size */
 	u_long	ips_notmember;		/* multicasts for unregistered grps */
 	u_long	ips_nogif;		/* no match gif found */
 	u_long	ips_badaddr;		/* invalid address on header */
 };

 #ifdef _FREEBSD_KERNEL

 #include <net/bsd_vnet.h>

 /*
  * In-kernel consumers can use these accessor macros directly to update
  * stats.
  */
 #define	IPSTAT_ADD(name, val)	V_ipstat.name += (val)
 #define	IPSTAT_SUB(name, val)	V_ipstat.name -= (val)
 #define	IPSTAT_INC(name)	IPSTAT_ADD(name, 1)
 #define	IPSTAT_DEC(name)	IPSTAT_SUB(name, 1)

 /*
  * Kernel module consumers must use this accessor macro.
  */
 void	kmod_ipstat_inc(int statnum);
 #define	KMOD_IPSTAT_INC(name)						\
 	kmod_ipstat_inc(offsetof(struct ipstat, name) / sizeof(u_long))
 void	kmod_ipstat_dec(int statnum);
 #define	KMOD_IPSTAT_DEC(name)						\
 	kmod_ipstat_dec(offsetof(struct ipstat, name) / sizeof(u_long))

 /* flags passed to ip_output as last parameter */
 #define	IP_FORWARDING		0x1		/* most of ip header exists */
 #define	IP_RAWOUTPUT		0x2		/* raw ip header exists */
 #define	IP_SENDONES		0x4		/* send all-ones broadcast */
 #define	IP_SENDTOIF		0x8		/* send on specific ifnet */
 #define IP_ROUTETOIF		SO_DONTROUTE	/* 0x10 bypass routing tables */
 #define IP_ALLOWBROADCAST	SO_BROADCAST	/* 0x20 can send broadcast packets */

 /*
  * mbuf flag used by ip_fastfwd
  */
 #define	M_FASTFWD_OURS		M_PROTO1	/* changed dst to local */

 #ifdef __NO_STRICT_ALIGNMENT
 #define IP_HDR_ALIGNED_P(ip)	1
 #else
 #define IP_HDR_ALIGNED_P(ip)	((((intptr_t) (ip)) & 3) == 0)
 #endif

 struct ip;
 struct inpcb;
 struct route;
 struct sockopt;

 VNET_DECLARE(struct ipstat, ipstat);
 VNET_DECLARE(u_short, ip_id);			/* ip packet ctr, for ids */
 VNET_DECLARE(int, ip_defttl);			/* default IP ttl */
 VNET_DECLARE(int, ipforwarding);		/* ip forwarding */
 #ifdef IPSTEALTH
 VNET_DECLARE(int, ipstealth);			/* stealth forwarding */
 #endif
 VNET_DECLARE(int, rsvp_on);
 VNET_DECLARE(struct socket *, ip_rsvpd);	/* reservation protocol daemon*/
 VNET_DECLARE(struct socket *, ip_mrouter);	/* multicast routing daemon */

 #define	V_ipstat		VNET(ipstat)
 #define	V_ip_id			VNET(ip_id)
 #define	V_ip_defttl		VNET(ip_defttl)
 #define	V_ipforwarding		VNET(ipforwarding)
 #ifdef IPSTEALTH
 #define	V_ipstealth		VNET(ipstealth)
 #endif
 #define	V_rsvp_on		VNET(rsvp_on)
 #define	V_ip_rsvpd		VNET(ip_rsvpd)
 #define	V_ip_mrouter		VNET(ip_mrouter)

 extern u_char	ip_protox[];
 extern int	(*legal_vif_num)(int);
 extern u_long	(*ip_mcast_src)(int);
 extern struct	pr_usrreqs rip_usrreqs;

 void	inp_freemoptions(struct ip_moptions *);
 int	inp_getmoptions(struct inpcb *, struct sockopt *);
 int	inp_setmoptions(struct inpcb *, struct sockopt *);

 int	ip_ctloutput(struct socket *, struct sockopt *sopt);
 void	ip_drain(void);
 void	ip_fini(void *xtp);
 int	ip_fragment(struct ip *ip, struct mbuf **m_frag, int mtu,
 	    u_long if_hwassist_flags, int sw_csum);
 void	ip_forward(struct mbuf *m, int srcrt);
 void	ip_init(void);
 extern int
 	(*ip_mforward)(struct ip *, struct ifnet *, struct mbuf *,
 	    struct ip_moptions *);
 int	ip_output(struct mbuf *,
 	    struct mbuf *, struct route *, int, struct ip_moptions *,
 	    struct inpcb *);
 int	ipproto_register(u_char);
 int	ipproto_unregister(u_char);
 struct mbuf *
 	ip_reass(struct mbuf *);
 struct in_ifaddr *
 	ip_rtaddr(struct in_addr, u_int fibnum);
 void	ip_savecontrol(struct inpcb *, struct mbuf **, struct ip *,
 	    struct mbuf *);
 void	ip_slowtimo(void);
 u_int16_t	ip_randomid(void);
 int	rip_ctloutput(struct socket *, struct sockopt *);
 void	rip_ctlinput(int, struct sockaddr *, void *);
 void	rip_init(void);
 #ifdef VIMAGE
 void	rip_destroy(void);
 #endif
 void	rip_input(struct mbuf *, int);
 int	rip_output(struct mbuf *, struct socket *, u_long);
 void	ipip_input(struct mbuf *, int);
 void	rsvp_input(struct mbuf *, int);
 int	ip_rsvp_init(struct socket *);
 int	ip_rsvp_done(void);
 extern int	(*ip_rsvp_vif)(struct socket *, struct sockopt *);
 extern void	(*ip_rsvp_force_done)(struct socket *);
 extern void	(*rsvp_input_p)(struct mbuf *m, int off);

 //extern	struct pfil_head inet_pfil_hook;	/* packet filter hooks */

 void	in_delayed_cksum(struct mbuf *m);

 /* ipfw and dummynet hooks. Most are declared in raw_ip.c */
 struct ip_fw_args;
 extern int	(*ip_fw_chk_ptr)(struct ip_fw_args *args);
 extern int	(*ip_fw_ctl_ptr)(struct sockopt *);
 extern int	(*ip_dn_ctl_ptr)(struct sockopt *);
 extern int	(*ip_dn_io_ptr)(struct mbuf **m, int dir, struct ip_fw_args *fwa);
 extern void	(*ip_dn_ruledel_ptr)(void *);		/* in ip_fw2.c */

 VNET_DECLARE(int, ip_do_randomid);
 #define	V_ip_do_randomid	VNET(ip_do_randomid)
 #define	ip_newid()	((V_ip_do_randomid != 0) ? ip_randomid() : \
 			    htons(V_ip_id++))

 #endif /* _FREEBSD_KERNEL */

 #endif /* !_BSD_NETINET_IP_VAR_H_ */
	/*-
	* Copyright (c) 1982, 1986, 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.
	*
	* @(#)ip_var.h 8.2 (Berkeley) 1/9/95
	* $FreeBSD$
	*/

	#ifndef _BSD_NETINET_IP_VAR_H_
	#define _BSD_NETINET_IP_VAR_H_

	#include <sys/bsd_queue.h>

	/*
	* Overlay for ip header used by other protocols (tcp, udp).
	*/
	struct ipovly {
	u_char ih_x1[9]; /* (unused) */
	u_char ih_pr; /* protocol */
	u_short ih_len; /* protocol length */
	struct in_addr ih_src; /* source internet address */
	struct in_addr ih_dst; /* destination internet address */
	};

	#ifdef _FREEBSD_KERNEL
	/*
	* Ip reassembly queue structure. Each fragment
	* being reassembled is attached to one of these structures.
	* They are timed out after ipq_ttl drops to 0, and may also
	* be reclaimed if memory becomes tight.
	*/
	struct ipq {
	TAILQ_ENTRY(ipq) ipq_list; /* to other reass headers */
	u_char ipq_ttl; /* time for reass q to live */
	u_char ipq_p; /* protocol of this fragment */
	u_short ipq_id; /* sequence id for reassembly */
	struct mbuf ipq_frags; / to ip headers of fragments */
	struct in_addr ipq_src,ipq_dst;
	u_char ipq_nfrags; /* # frags in this packet */
	struct label ipq_label; / MAC label */
	};
	#endif /* _FREEBSD_KERNEL */

	/*
	* Structure stored in mbuf in inpcb.ip_options
	* and passed to ip_output when ip options are in use.
	* The actual length of the options (including ipopt_dst)
	* is in m_len.
	*/
	#define MAX_IPOPTLEN 40

	struct ipoption {
	struct in_addr ipopt_dst; /* first-hop dst if source routed */
	char ipopt_list[MAX_IPOPTLEN]; /* options proper */
	};

	/*
	* Structure attached to inpcb.ip_moptions and
	* passed to ip_output when IP multicast options are in use.
	* This structure is lazy-allocated.
	*/
	struct ip_moptions {
	struct ifnet imo_multicast_ifp; / ifp for outgoing multicasts */
	struct in_addr imo_multicast_addr; /* ifindex/addr on MULTICAST_IF */
	u_long imo_multicast_vif; /* vif num outgoing multicasts */
	u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
	u_char imo_multicast_loop; /* 1 => hear sends if a member */
	u_short imo_num_memberships; /* no. memberships this socket */
	u_short imo_max_memberships; /* max memberships this socket */
	struct in_multi *imo_membership; / group memberships */
	struct in_mfilter imo_mfilters; / source filters */
	};

	struct ipstat {
	u_long ips_total; /* total packets received */
	u_long ips_badsum; /* checksum bad */
	u_long ips_tooshort; /* packet too short */
	u_long ips_toosmall; /* not enough data */
	u_long ips_badhlen; /* ip header length < data size */
	u_long ips_badlen; /* ip length < ip header length */
	u_long ips_fragments; /* fragments received */
	u_long ips_fragdropped; /* frags dropped (dups, out of space) */
	u_long ips_fragtimeout; /* fragments timed out */
	u_long ips_forward; /* packets forwarded */
	u_long ips_fastforward; /* packets fast forwarded */
	u_long ips_cantforward; /* packets rcvd for unreachable dest */
	u_long ips_redirectsent; /* packets forwarded on same net */
	u_long ips_noproto; /* unknown or unsupported protocol */
	u_long ips_delivered; /* datagrams delivered to upper level*/
	u_long ips_localout; /* total ip packets generated here */
	u_long ips_odropped; /* lost packets due to nobufs, etc. */
	u_long ips_reassembled; /* total packets reassembled ok */
	u_long ips_fragmented; /* datagrams successfully fragmented */
	u_long ips_ofragments; /* output fragments created */
	u_long ips_cantfrag; /* don't fragment flag was set, etc. */
	u_long ips_badoptions; /* error in option processing */
	u_long ips_noroute; /* packets discarded due to no route */
	u_long ips_badvers; /* ip version != 4 */
	u_long ips_rawout; /* total raw ip packets generated */
	u_long ips_toolong; /* ip length > max ip packet size */
	u_long ips_notmember; /* multicasts for unregistered grps */
	u_long ips_nogif; /* no match gif found */
	u_long ips_badaddr; /* invalid address on header */
	};

	#ifdef _FREEBSD_KERNEL

	#include <net/bsd_vnet.h>

	/*
	* In-kernel consumers can use these accessor macros directly to update
	* stats.
	*/
	#define IPSTAT_ADD(name, val) V_ipstat.name += (val)
	#define IPSTAT_SUB(name, val) V_ipstat.name -= (val)
	#define IPSTAT_INC(name) IPSTAT_ADD(name, 1)
	#define IPSTAT_DEC(name) IPSTAT_SUB(name, 1)

	/*
	* Kernel module consumers must use this accessor macro.
	*/
	void kmod_ipstat_inc(int statnum);
	#define KMOD_IPSTAT_INC(name) \
	kmod_ipstat_inc(offsetof(struct ipstat, name) / sizeof(u_long))
	void kmod_ipstat_dec(int statnum);
	#define KMOD_IPSTAT_DEC(name) \
	kmod_ipstat_dec(offsetof(struct ipstat, name) / sizeof(u_long))

	/* flags passed to ip_output as last parameter */
	#define IP_FORWARDING 0x1 /* most of ip header exists */
	#define IP_RAWOUTPUT 0x2 /* raw ip header exists */
	#define IP_SENDONES 0x4 /* send all-ones broadcast */
	#define IP_SENDTOIF 0x8 /* send on specific ifnet */
	#define IP_ROUTETOIF SO_DONTROUTE /* 0x10 bypass routing tables */
	#define IP_ALLOWBROADCAST SO_BROADCAST /* 0x20 can send broadcast packets */

	/*
	* mbuf flag used by ip_fastfwd
	*/
	#define M_FASTFWD_OURS M_PROTO1 /* changed dst to local */

	#ifdef __NO_STRICT_ALIGNMENT
	#define IP_HDR_ALIGNED_P(ip) 1
	#else
	#define IP_HDR_ALIGNED_P(ip) ((((intptr_t) (ip)) & 3) == 0)
	#endif

	struct ip;
	struct inpcb;
	struct route;
	struct sockopt;

	VNET_DECLARE(struct ipstat, ipstat);
	VNET_DECLARE(u_short, ip_id); /* ip packet ctr, for ids */
	VNET_DECLARE(int, ip_defttl); /* default IP ttl */
	VNET_DECLARE(int, ipforwarding); /* ip forwarding */
	#ifdef IPSTEALTH
	VNET_DECLARE(int, ipstealth); /* stealth forwarding */
	#endif
	VNET_DECLARE(int, rsvp_on);
	VNET_DECLARE(struct socket , ip_rsvpd); / reservation protocol daemon*/
	VNET_DECLARE(struct socket , ip_mrouter); / multicast routing daemon */

	#define V_ipstat VNET(ipstat)
	#define V_ip_id VNET(ip_id)
	#define V_ip_defttl VNET(ip_defttl)
	#define V_ipforwarding VNET(ipforwarding)
	#ifdef IPSTEALTH
	#define V_ipstealth VNET(ipstealth)
	#endif
	#define V_rsvp_on VNET(rsvp_on)
	#define V_ip_rsvpd VNET(ip_rsvpd)
	#define V_ip_mrouter VNET(ip_mrouter)

	extern u_char ip_protox[];
	extern int (*legal_vif_num)(int);
	extern u_long (*ip_mcast_src)(int);
	extern struct pr_usrreqs rip_usrreqs;

	void inp_freemoptions(struct ip_moptions *);
	int inp_getmoptions(struct inpcb , struct sockopt );
	int inp_setmoptions(struct inpcb , struct sockopt );

	int ip_ctloutput(struct socket , struct sockopt sopt);
	void ip_drain(void);
	void ip_fini(void *xtp);
	int ip_fragment(struct ip ip, struct mbuf *m_frag, int mtu,
	u_long if_hwassist_flags, int sw_csum);
	void ip_forward(struct mbuf *m, int srcrt);
	void ip_init(void);
	extern int
	(ip_mforward)(struct ip , struct ifnet , struct mbuf ,
	struct ip_moptions *);
	int ip_output(struct mbuf *,
	struct mbuf , struct route , int, struct ip_moptions *,
	struct inpcb *);
	int ipproto_register(u_char);
	int ipproto_unregister(u_char);
	struct mbuf *
	ip_reass(struct mbuf *);
	struct in_ifaddr *
	ip_rtaddr(struct in_addr, u_int fibnum);
	void ip_savecontrol(struct inpcb , struct mbuf , struct ip ,
	struct mbuf *);
	void ip_slowtimo(void);
	u_int16_t ip_randomid(void);
	int rip_ctloutput(struct socket , struct sockopt );
	void rip_ctlinput(int, struct sockaddr , void );
	void rip_init(void);
	#ifdef VIMAGE
	void rip_destroy(void);
	#endif
	void rip_input(struct mbuf *, int);
	int rip_output(struct mbuf , struct socket , u_long);
	void ipip_input(struct mbuf *, int);
	void rsvp_input(struct mbuf *, int);
	int ip_rsvp_init(struct socket *);
	int ip_rsvp_done(void);
	extern int (ip_rsvp_vif)(struct socket , struct sockopt *);
	extern void (ip_rsvp_force_done)(struct socket );
	extern void (rsvp_input_p)(struct mbuf m, int off);

	//extern struct pfil_head inet_pfil_hook; /* packet filter hooks */

	void in_delayed_cksum(struct mbuf *m);

	/* ipfw and dummynet hooks. Most are declared in raw_ip.c */
	struct ip_fw_args;
	extern int (ip_fw_chk_ptr)(struct ip_fw_args args);
	extern int (ip_fw_ctl_ptr)(struct sockopt );
	extern int (ip_dn_ctl_ptr)(struct sockopt );
	extern int (ip_dn_io_ptr)(struct mbuf m, int dir, struct ip_fw_args fwa);
	extern void (ip_dn_ruledel_ptr)(void ); /* in ip_fw2.c */

	VNET_DECLARE(int, ip_do_randomid);
	#define V_ip_do_randomid VNET(ip_do_randomid)
	#define ip_newid() ((V_ip_do_randomid != 0) ? ip_randomid() : \
	htons(V_ip_id++))

	#endif /* _FREEBSD_KERNEL */

	#endif /* !_BSD_NETINET_IP_VAR_H_ */