1152592Sandre/*
2152592Sandre * Copyright (c) 1982, 1986, 1993
3169464Srwatson *	The Regents of the University of California.
4169464Srwatson * Copyright (c) 2005 Andre Oppermann, Internet Business Solutions AG.
5169464Srwatson * All rights reserved.
6152592Sandre *
7152592Sandre * Redistribution and use in source and binary forms, with or without
8152592Sandre * modification, are permitted provided that the following conditions
9152592Sandre * are met:
10152592Sandre * 1. Redistributions of source code must retain the above copyright
11152592Sandre *    notice, this list of conditions and the following disclaimer.
12152592Sandre * 2. Redistributions in binary form must reproduce the above copyright
13152592Sandre *    notice, this list of conditions and the following disclaimer in the
14152592Sandre *    documentation and/or other materials provided with the distribution.
15152592Sandre * 4. Neither the name of the University nor the names of its contributors
16152592Sandre *    may be used to endorse or promote products derived from this software
17152592Sandre *    without specific prior written permission.
18152592Sandre *
19152592Sandre * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20152592Sandre * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21152592Sandre * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22152592Sandre * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23152592Sandre * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24152592Sandre * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25152592Sandre * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26152592Sandre * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27152592Sandre * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28152592Sandre * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29152592Sandre * SUCH DAMAGE.
30152592Sandre *
31152592Sandre * $FreeBSD$
32152592Sandre */
33152592Sandre
34152592Sandre#ifndef _NETINET_IP_OPTIONS_H_
35152592Sandre#define	_NETINET_IP_OPTIONS_H_
36152592Sandre
37152592Sandrestruct ipoptrt {
38152592Sandre        struct  in_addr dst;                    /* final destination */
39152592Sandre        char    nop;                            /* one NOP to align */
40152592Sandre        char    srcopt[IPOPT_OFFSET + 1];       /* OPTVAL, OLEN and OFFSET */
41152592Sandre        struct  in_addr route[MAX_IPOPTLEN/sizeof(struct in_addr)];
42152592Sandre};
43152592Sandre
44152592Sandrestruct ipopt_tag {
45152592Sandre	struct	m_tag tag;			/* m_tag */
46152592Sandre	int	ip_nhops;
47152592Sandre	struct	ipoptrt ip_srcrt;
48152592Sandre};
49152592Sandre
50271610ShrsVNET_DECLARE(int, ip_doopts);		/* process or ignore IP options */
51271610Shrs#define	V_ip_doopts	VNET(ip_doopts)
52152592Sandre
53189343Sbmsint		 ip_checkrouteralert(struct mbuf *);
54169464Srwatsonint		 ip_dooptions(struct mbuf *, int);
55169464Srwatsonstruct mbuf	*ip_insertoptions(struct mbuf *, struct mbuf *, int *);
56169464Srwatsonint		 ip_optcopy(struct ip *, struct ip *);
57169464Srwatsonint		 ip_pcbopts(struct inpcb *, int, struct mbuf *);
58241480Sglebiusvoid		 ip_stripoptions(struct mbuf *);
59169464Srwatsonstruct mbuf	*ip_srcroute(struct mbuf *);
60152592Sandre
61152592Sandre#endif /* !_NETINET_IP_OPTIONS_H_ */
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