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84 lines
2.9 KiB
C
84 lines
2.9 KiB
C
/*-
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* Copyright (c) 2003 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#ifndef _NETINET_IP_DIVERT_H_
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#define _NETINET_IP_DIVERT_H_
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/*
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* Divert socket definitions.
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*/
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struct divert_tag {
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u_int32_t info; /* port & flags */
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u_int16_t cookie; /* ipfw rule number */
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};
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/*
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* Return the divert cookie associated with the mbuf; if any.
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*/
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static __inline u_int16_t
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divert_cookie(struct m_tag *mtag)
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{
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return ((struct divert_tag *)(mtag+1))->cookie;
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}
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static __inline u_int16_t
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divert_find_cookie(struct mbuf *m)
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{
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struct m_tag *mtag = m_tag_find(m, PACKET_TAG_DIVERT, NULL);
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return mtag ? divert_cookie(mtag) : 0;
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}
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/*
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* Return the divert info associated with the mbuf; if any.
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*/
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static __inline u_int32_t
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divert_info(struct m_tag *mtag)
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{
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return ((struct divert_tag *)(mtag+1))->info;
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}
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static __inline u_int32_t
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divert_find_info(struct mbuf *m)
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{
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struct m_tag *mtag = m_tag_find(m, PACKET_TAG_DIVERT, NULL);
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return mtag ? divert_info(mtag) : 0;
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}
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extern void div_init(void);
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extern void div_input(struct mbuf *, int);
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extern void div_ctlinput(int, struct sockaddr *, void *);
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extern void divert_packet(struct mbuf *m, int incoming);
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extern struct mbuf *divert_clone(struct mbuf *);
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extern struct pr_usrreqs div_usrreqs;
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#endif /* _NETINET_IP_DIVERT_H_ */
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