[apple/xnu.git] / bsd / netinet / ip_var.h

/*
 * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 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
 */
/*
 * NOTICE: This file was modified by SPARTA, Inc. in 2007 to introduce
 * support for mandatory and extensible security protections.  This notice
 * is included in support of clause 2.2 (b) of the Apple Public License,
 * Version 2.0.
 */

#ifndef _NETINET_IP_VAR_H_
#define	_NETINET_IP_VAR_H_
#include <sys/appleapiopts.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 KERNEL_PRIVATE
#if CONFIG_MACF_NET
struct label;
#endif
/*
 * 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 {
	struct	ipq *next,*prev;	/* 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_int32_t	ipq_nfrags;
	TAILQ_ENTRY(ipq) ipq_list;
#if CONFIG_MACF_NET
	struct label *ipq_label;	/* MAC label */
#endif
#if IPDIVERT
#ifdef IPDIVERT_44
	u_int32_t ipq_div_info;		/* ipfw divert port & flags */
#else
	u_int16_t ipq_divert;		/* ipfw divert port (Maintain backward compat.) */
#endif
	u_int16_t ipq_div_cookie;	/* ipfw divert cookie */
#endif
};

/*
 * 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.
 */
#endif /* KERNEL_PRIVATE */
#define MAX_IPOPTLEN	40
#ifdef KERNEL_PRIVATE

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.
 */
struct ip_moptions {
	struct	ifnet *imo_multicast_ifp; /* ifp for 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 */
	struct	in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
	u_int32_t	imo_multicast_vif;	/* vif num outgoing multicasts */
	struct	in_addr imo_multicast_addr; /* ifindex/addr on MULTICAST_IF */
};

/* mbuf tag for ip_forwarding info */
struct ip_fwd_tag {
	struct sockaddr_in *next_hop;	/* next_hop */
};

#endif /* KERNEL_PRIVATE */

struct	ipstat {
	u_int32_t	ips_total;		/* total packets received */
	u_int32_t	ips_badsum;		/* checksum bad */
	u_int32_t	ips_tooshort;		/* packet too short */
	u_int32_t	ips_toosmall;		/* not enough data */
	u_int32_t	ips_badhlen;		/* ip header length < data size */
	u_int32_t	ips_badlen;		/* ip length < ip header length */
	u_int32_t	ips_fragments;		/* fragments received */
	u_int32_t	ips_fragdropped;	/* frags dropped (dups, out of space) */
	u_int32_t	ips_fragtimeout;	/* fragments timed out */
	u_int32_t	ips_forward;		/* packets forwarded */
	u_int32_t	ips_fastforward;	/* packets fast forwarded */
	u_int32_t	ips_cantforward;	/* packets rcvd for unreachable dest */
	u_int32_t	ips_redirectsent;	/* packets forwarded on same net */
	u_int32_t	ips_noproto;		/* unknown or unsupported protocol */
	u_int32_t	ips_delivered;		/* datagrams delivered to upper level*/
	u_int32_t	ips_localout;		/* total ip packets generated here */
	u_int32_t	ips_odropped;		/* lost packets due to nobufs, etc. */
	u_int32_t	ips_reassembled;	/* total packets reassembled ok */
	u_int32_t	ips_fragmented;		/* datagrams successfully fragmented */
	u_int32_t	ips_ofragments;		/* output fragments created */
	u_int32_t	ips_cantfrag;		/* don't fragment flag was set, etc. */
	u_int32_t	ips_badoptions;		/* error in option processing */
	u_int32_t	ips_noroute;		/* packets discarded due to no route */
	u_int32_t	ips_badvers;		/* ip version != 4 */
	u_int32_t	ips_rawout;		/* total raw ip packets generated */
	u_int32_t	ips_toolong;		/* ip length > max ip packet size */
	u_int32_t	ips_notmember;		/* multicasts for unregistered grps */
	u_int32_t	ips_nogif;		/* no match gif found */
	u_int32_t	ips_badaddr;		/* invalid address on header */
};

struct ip_linklocal_stat {
	u_int32_t	iplls_in_total;
	u_int32_t	iplls_in_badttl;
	u_int32_t	iplls_out_total;
	u_int32_t	iplls_out_badttl;
};

#ifdef KERNEL_PRIVATE
/* 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_NOIPSEC		0x4		/* No IPSec processing */
#define	IP_ROUTETOIF		SO_DONTROUTE	/* bypass routing tables (0x0010) */
#define	IP_ALLOWBROADCAST	SO_BROADCAST	/* can send broadcast packets (0x0020) */
#define	IP_OUTARGS		0x100		/* has ancillary output info */

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

/*
 * Extra information passed to ip_output when IP_OUTARGS is set.
 */
struct ip_out_args {
	unsigned int	ipoa_ifscope;	/* interface scope */
};

extern struct	ipstat	ipstat;
#if !defined(RANDOM_IP_ID) || RANDOM_IP_ID == 0
extern u_short	ip_id;				/* ip packet ctr, for ids */
#endif
extern int	ip_defttl;			/* default IP ttl */
extern int	ipforwarding;			/* ip forwarding */
extern struct protosw *ip_protox[];
extern struct socket *ip_rsvpd;	/* reservation protocol daemon */
extern struct socket *ip_mrouter; /* multicast routing daemon */
extern int	(*legal_vif_num)(int);
extern u_int32_t	(*ip_mcast_src)(int);
extern int rsvp_on;
extern struct	pr_usrreqs rip_usrreqs;
extern int	ip_doscopedroute;

int	 ip_ctloutput(struct socket *, struct sockopt *sopt);
void	 ip_drain(void);
void	 ip_freemoptions(struct ip_moptions *);
void	 ip_init(void) __attribute__((section("__TEXT, initcode")));
extern int	 (*ip_mforward)(struct ip *, struct ifnet *, struct mbuf *,
			  struct ip_moptions *);
extern int ip_output(struct mbuf *, struct mbuf *, struct route *, int,
    struct ip_moptions *, struct ip_out_args *);
extern int ip_output_list(struct mbuf *, int, struct mbuf *, struct route *,
    int, struct ip_moptions *, struct ip_out_args *);
struct in_ifaddr *ip_rtaddr(struct in_addr);
void	 ip_savecontrol(struct inpcb *, struct mbuf **, struct ip *,
		struct mbuf *);
void	 ip_slowtimo(void);
struct mbuf *
	 ip_srcroute(void);
void	 ip_stripoptions(struct mbuf *, struct mbuf *);
#if RANDOM_IP_ID
u_int16_t	
	 ip_randomid(void);
#endif
int	rip_ctloutput(struct socket *, struct sockopt *);
void	rip_ctlinput(int, struct sockaddr *, void *);
void	rip_init(void) __attribute__((section("__TEXT, initcode")));
void	rip_input(struct mbuf *, int);
int	rip_output(struct mbuf *, struct socket *, u_int32_t);
int	rip_unlock(struct socket *, int, void *);
void	ipip_input(struct mbuf *, int);
void	rsvp_input(struct mbuf *, int);
int	ip_rsvp_init(struct socket *);
int	ip_rsvp_done(void);
int	ip_rsvp_vif_init(struct socket *, struct sockopt *);
int	ip_rsvp_vif_done(struct socket *, struct sockopt *);
void	ip_rsvp_force_done(struct socket *);

void	in_delayed_cksum(struct mbuf *m);

extern void tcp_in_cksum_stats(u_int32_t);
extern void tcp_out_cksum_stats(u_int32_t);

extern void udp_in_cksum_stats(u_int32_t);
extern void udp_out_cksum_stats(u_int32_t);

int rip_send(struct socket *, int , struct mbuf *, struct sockaddr *, 
			struct mbuf *, struct proc *);

extern int ip_fragment(struct mbuf *, struct ifnet *, unsigned long, int);

#endif /* KERNEL_PRIVATE */
#endif /* !_NETINET_IP_VAR_H_ */
Commit	Line	Data
1c79356b	1	/*
c910b4d9	2	* Copyright (c) 2000-2008 Apple Inc. All rights reserved.
5d5c5d0d	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
8f6c56a5	14	*
2d21ac55 A	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
	24	* limitations under the License.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* Copyright (c) 1982, 1986, 1993
	30	* The Regents of the University of California. All rights reserved.
	31	*
	32	* Redistribution and use in source and binary forms, with or without
	33	* modification, are permitted provided that the following conditions
	34	* are met:
	35	* 1. Redistributions of source code must retain the above copyright
	36	* notice, this list of conditions and the following disclaimer.
	37	* 2. Redistributions in binary form must reproduce the above copyright
	38	* notice, this list of conditions and the following disclaimer in the
	39	* documentation and/or other materials provided with the distribution.
	40	* 3. All advertising materials mentioning features or use of this software
	41	* must display the following acknowledgement:
	42	* This product includes software developed by the University of
	43	* California, Berkeley and its contributors.
	44	* 4. Neither the name of the University nor the names of its contributors
	45	* may be used to endorse or promote products derived from this software
	46	* without specific prior written permission.
	47	*
	48	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	49	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	50	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	51	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	52	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	53	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	54	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	55	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	56	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	57	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	58	* SUCH DAMAGE.
	59	*
	60	* @(#)ip_var.h 8.2 (Berkeley) 1/9/95
	61	*/
2d21ac55 A	62	/*
	63	* NOTICE: This file was modified by SPARTA, Inc. in 2007 to introduce
	64	* support for mandatory and extensible security protections. This notice
	65	* is included in support of clause 2.2 (b) of the Apple Public License,
	66	* Version 2.0.
	67	*/
1c79356b A	68
	69	#ifndef _NETINET_IP_VAR_H_
	70	#define _NETINET_IP_VAR_H_
9bccf70c	71	#include <sys/appleapiopts.h>
1c79356b A	72
	73	/*
	74	* Overlay for ip header used by other protocols (tcp, udp).
	75	*/
	76	struct ipovly {
	77	u_char ih_x1[9]; /* (unused) */
	78	u_char ih_pr; /* protocol */
	79	u_short ih_len; /* protocol length */
	80	struct in_addr ih_src; /* source internet address */
	81	struct in_addr ih_dst; /* destination internet address */
	82	};
	83
91447636	84	#ifdef KERNEL_PRIVATE
2d21ac55 A	85	#if CONFIG_MACF_NET
	86	struct label;
	87	#endif
1c79356b A	88	/*
	89	* Ip reassembly queue structure. Each fragment
	90	* being reassembled is attached to one of these structures.
	91	* They are timed out after ipq_ttl drops to 0, and may also
	92	* be reclaimed if memory becomes tight.
	93	*/
	94	struct ipq {
	95	struct ipq next,prev; /* to other reass headers */
	96	u_char ipq_ttl; /* time for reass q to live */
	97	u_char ipq_p; /* protocol of this fragment */
	98	u_short ipq_id; /* sequence id for reassembly */
	99	struct mbuf ipq_frags; / to ip headers of fragments */
	100	struct in_addr ipq_src,ipq_dst;
b0d623f7	101	u_int32_t ipq_nfrags;
91447636	102	TAILQ_ENTRY(ipq) ipq_list;
2d21ac55 A	103	#if CONFIG_MACF_NET
	104	struct label ipq_label; / MAC label */
	105	#endif
1c79356b	106	#if IPDIVERT
9bccf70c A	107	#ifdef IPDIVERT_44
	108	u_int32_t ipq_div_info; /* ipfw divert port & flags */
	109	#else
	110	u_int16_t ipq_divert; /* ipfw divert port (Maintain backward compat.) */
	111	#endif
	112	u_int16_t ipq_div_cookie; /* ipfw divert cookie */
1c79356b A	113	#endif
	114	};
	115
	116	/*
	117	* Structure stored in mbuf in inpcb.ip_options
	118	* and passed to ip_output when ip options are in use.
	119	* The actual length of the options (including ipopt_dst)
	120	* is in m_len.
	121	*/
91447636	122	#endif /* KERNEL_PRIVATE */
1c79356b	123	#define MAX_IPOPTLEN 40
91447636	124	#ifdef KERNEL_PRIVATE
1c79356b A	125
	126	struct ipoption {
	127	struct in_addr ipopt_dst; /* first-hop dst if source routed */
	128	char ipopt_list[MAX_IPOPTLEN]; /* options proper */
	129	};
	130
	131	/*
	132	* Structure attached to inpcb.ip_moptions and
	133	* passed to ip_output when IP multicast options are in use.
	134	*/
	135	struct ip_moptions {
	136	struct ifnet imo_multicast_ifp; / ifp for outgoing multicasts */
	137	u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
	138	u_char imo_multicast_loop; /* 1 => hear sends if a member */
	139	u_short imo_num_memberships; /* no. memberships this socket */
	140	struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
b0d623f7	141	u_int32_t imo_multicast_vif; /* vif num outgoing multicasts */
9bccf70c	142	struct in_addr imo_multicast_addr; /* ifindex/addr on MULTICAST_IF */
1c79356b A	143	};
1c79356b A	144
91447636 A	145	/* mbuf tag for ip_forwarding info */
	146	struct ip_fwd_tag {
	147	struct sockaddr_in next_hop; / next_hop */
	148	};
	149
	150	#endif /* KERNEL_PRIVATE */
	151
1c79356b	152	struct ipstat {
2d21ac55 A	153	u_int32_t ips_total; /* total packets received */
	154	u_int32_t ips_badsum; /* checksum bad */
	155	u_int32_t ips_tooshort; /* packet too short */
	156	u_int32_t ips_toosmall; /* not enough data */
	157	u_int32_t ips_badhlen; /* ip header length < data size */
	158	u_int32_t ips_badlen; /* ip length < ip header length */
	159	u_int32_t ips_fragments; /* fragments received */
	160	u_int32_t ips_fragdropped; /* frags dropped (dups, out of space) */
	161	u_int32_t ips_fragtimeout; /* fragments timed out */
	162	u_int32_t ips_forward; /* packets forwarded */
	163	u_int32_t ips_fastforward; /* packets fast forwarded */
	164	u_int32_t ips_cantforward; /* packets rcvd for unreachable dest */
	165	u_int32_t ips_redirectsent; /* packets forwarded on same net */
	166	u_int32_t ips_noproto; /* unknown or unsupported protocol */
	167	u_int32_t ips_delivered; /* datagrams delivered to upper level*/
	168	u_int32_t ips_localout; /* total ip packets generated here */
	169	u_int32_t ips_odropped; /* lost packets due to nobufs, etc. */
	170	u_int32_t ips_reassembled; /* total packets reassembled ok */
	171	u_int32_t ips_fragmented; /* datagrams successfully fragmented */
	172	u_int32_t ips_ofragments; /* output fragments created */
	173	u_int32_t ips_cantfrag; /* don't fragment flag was set, etc. */
	174	u_int32_t ips_badoptions; /* error in option processing */
	175	u_int32_t ips_noroute; /* packets discarded due to no route */
	176	u_int32_t ips_badvers; /* ip version != 4 */
	177	u_int32_t ips_rawout; /* total raw ip packets generated */
	178	u_int32_t ips_toolong; /* ip length > max ip packet size */
	179	u_int32_t ips_notmember; /* multicasts for unregistered grps */
	180	u_int32_t ips_nogif; /* no match gif found */
	181	u_int32_t ips_badaddr; /* invalid address on header */
1c79356b A	182	};
1c79356b A	183
9bccf70c	184	struct ip_linklocal_stat {
2d21ac55 A	185	u_int32_t iplls_in_total;
	186	u_int32_t iplls_in_badttl;
	187	u_int32_t iplls_out_total;
	188	u_int32_t iplls_out_badttl;
9bccf70c	189	};
1c79356b	190
91447636	191	#ifdef KERNEL_PRIVATE
1c79356b A	192	/* flags passed to ip_output as last parameter */
	193	#define IP_FORWARDING 0x1 /* most of ip header exists */
	194	#define IP_RAWOUTPUT 0x2 /* raw ip header exists */
2d21ac55	195	#define IP_NOIPSEC 0x4 /* No IPSec processing */
55e303ae A	196	#define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables (0x0010) */
55e303ae A	197	#define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets (0x0020) */
c910b4d9	198	#define IP_OUTARGS 0x100 /* has ancillary output info */
1c79356b A	199
	200	struct ip;
	201	struct inpcb;
	202	struct route;
	203	struct sockopt;
	204
c910b4d9 A	205	/*
	206	* Extra information passed to ip_output when IP_OUTARGS is set.
	207	*/
	208	struct ip_out_args {
	209	unsigned int ipoa_ifscope; /* interface scope */
	210	};
	211
1c79356b	212	extern struct ipstat ipstat;
9bccf70c	213	#if !defined(RANDOM_IP_ID) \|\| RANDOM_IP_ID == 0
1c79356b	214	extern u_short ip_id; /* ip packet ctr, for ids */
9bccf70c	215	#endif
1c79356b A	216	extern int ip_defttl; /* default IP ttl */
	217	extern int ipforwarding; /* ip forwarding */
	218	extern struct protosw *ip_protox[];
	219	extern struct socket ip_rsvpd; / reservation protocol daemon */
	220	extern struct socket ip_mrouter; / multicast routing daemon */
91447636	221	extern int (*legal_vif_num)(int);
b0d623f7	222	extern u_int32_t (*ip_mcast_src)(int);
1c79356b A	223	extern int rsvp_on;
1c79356b A	224	extern struct pr_usrreqs rip_usrreqs;
c910b4d9	225	extern int ip_doscopedroute;
1c79356b	226
91447636 A	227	int ip_ctloutput(struct socket , struct sockopt sopt);
	228	void ip_drain(void);
	229	void ip_freemoptions(struct ip_moptions *);
2d21ac55	230	void ip_init(void) __attribute__((section("__TEXT, initcode")));
91447636 A	231	extern int (ip_mforward)(struct ip , struct ifnet , struct mbuf ,
91447636 A	232	struct ip_moptions *);
c910b4d9 A	233	extern int ip_output(struct mbuf , struct mbuf , struct route *, int,
	234	struct ip_moptions , struct ip_out_args );
	235	extern int ip_output_list(struct mbuf , int, struct mbuf , struct route *,
	236	int, struct ip_moptions , struct ip_out_args );
b0d623f7	237	struct in_ifaddr *ip_rtaddr(struct in_addr);
91447636 A	238	void ip_savecontrol(struct inpcb , struct mbuf , struct ip ,
	239	struct mbuf *);
	240	void ip_slowtimo(void);
1c79356b	241	struct mbuf *
91447636 A	242	ip_srcroute(void);
91447636 A	243	void ip_stripoptions(struct mbuf , struct mbuf );
9bccf70c A	244	#if RANDOM_IP_ID
9bccf70c A	245	u_int16_t
91447636	246	ip_randomid(void);
9bccf70c	247	#endif
91447636 A	248	int rip_ctloutput(struct socket , struct sockopt );
91447636 A	249	void rip_ctlinput(int, struct sockaddr , void );
2d21ac55	250	void rip_init(void) __attribute__((section("__TEXT, initcode")));
91447636	251	void rip_input(struct mbuf *, int);
b0d623f7 A	252	int rip_output(struct mbuf , struct socket , u_int32_t);
b0d623f7 A	253	int rip_unlock(struct socket , int, void );
91447636 A	254	void ipip_input(struct mbuf *, int);
	255	void rsvp_input(struct mbuf *, int);
	256	int ip_rsvp_init(struct socket *);
	257	int ip_rsvp_done(void);
	258	int ip_rsvp_vif_init(struct socket , struct sockopt );
	259	int ip_rsvp_vif_done(struct socket , struct sockopt );
	260	void ip_rsvp_force_done(struct socket *);
1c79356b	261
9bccf70c A	262	void in_delayed_cksum(struct mbuf *m);
9bccf70c A	263
2d21ac55 A	264	extern void tcp_in_cksum_stats(u_int32_t);
	265	extern void tcp_out_cksum_stats(u_int32_t);
	266
	267	extern void udp_in_cksum_stats(u_int32_t);
	268	extern void udp_out_cksum_stats(u_int32_t);
	269
	270	int rip_send(struct socket , int , struct mbuf , struct sockaddr *,
	271	struct mbuf , struct proc );
	272
b0d623f7 A	273	extern int ip_fragment(struct mbuf , struct ifnet , unsigned long, int);
b0d623f7 A	274
0c530ab8 A	275	#endif /* KERNEL_PRIVATE */
0c530ab8 A	276	#endif /* !_NETINET_IP_VAR_H_ */