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/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California.
* Copyright (c) 2005 Andre Oppermann, Internet Business Solutions AG.
* 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.
*
* $FreeBSD: release/9.1.0/sys/netinet/ip_options.h 189343 2009-03-04 02:51:22Z bms $
*/
#ifndef _NETINET_IP_OPTIONS_H_
#define _NETINET_IP_OPTIONS_H_
struct ipoptrt {
struct in_addr dst; /* final destination */
char nop; /* one NOP to align */
char srcopt[IPOPT_OFFSET + 1]; /* OPTVAL, OLEN and OFFSET */
struct in_addr route[MAX_IPOPTLEN/sizeof(struct in_addr)];
};
struct ipopt_tag {
struct m_tag tag; /* m_tag */
int ip_nhops;
struct ipoptrt ip_srcrt;
};
extern int ip_doopts; /* process or ignore IP options */
int ip_checkrouteralert(struct mbuf *);
int ip_dooptions(struct mbuf *, int);
struct mbuf *ip_insertoptions(struct mbuf *, struct mbuf *, int *);
int ip_optcopy(struct ip *, struct ip *);
int ip_pcbopts(struct inpcb *, int, struct mbuf *);
void ip_stripoptions(struct mbuf *, struct mbuf *);
struct mbuf *ip_srcroute(struct mbuf *);
#endif /* !_NETINET_IP_OPTIONS_H_ */