/*- * Copyright (c) 2003 Sam Leffler, Errno Consulting * 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, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any * redistribution must be conditioned upon including a substantially * similar Disclaimer requirement for further binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. * * $FreeBSD: src/sys/netinet/ip_divert.h,v 1.3 2004/02/25 19:55:28 mlaier Exp $ */ #ifndef _NETINET_IP_DIVERT_H_ #define _NETINET_IP_DIVERT_H_ #if IPDIVERT /* * Divert socket definitions. */ /* 32-bit unique unsigned value used to identify a module */ struct divert_tag { u_int32_t info; /* port & flags */ u_int16_t cookie; /* ipfw rule number */ }; /* * Return the divert cookie associated with the mbuf; if any. */ static __inline u_int16_t divert_cookie(struct m_tag *mtag) { return ((struct divert_tag *)(mtag+1))->cookie; } static __inline u_int16_t divert_find_cookie(struct mbuf *m) { struct m_tag *mtag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, KERNEL_TAG_TYPE_DIVERT, NULL); return mtag ? divert_cookie(mtag) : 0; } /* * Return the divert info associated with the mbuf; if any. */ static __inline u_int32_t divert_info(struct m_tag *mtag) { return ((struct divert_tag *)(mtag+1))->info; } static __inline u_int32_t divert_find_info(struct mbuf *m) { struct m_tag *mtag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, KERNEL_TAG_TYPE_DIVERT, NULL); return mtag ? divert_info(mtag) : 0; } extern void div_init(void) __attribute__((section("__TEXT, initcode"))); extern void div_input(struct mbuf *, int); lck_mtx_t * div_getlock(struct socket *, int ); int div_unlock(struct socket *, int, int); int div_lock(struct socket *, int , int ); extern void divert_packet(struct mbuf *m, int incoming, int port, int rule); extern struct pr_usrreqs div_usrreqs; #endif /* IPDIVERT */ #endif /* _NETINET_IP_DIVERT_H_ */