1/* 2 * Copyright (c) 2008 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 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. 14 * 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 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 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. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29/*- 30 * Copyright (c) 2003 Sam Leffler, Errno Consulting 31 * All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer, 38 * without modification. 39 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 40 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 41 * redistribution must be conditioned upon including a substantially 42 * similar Disclaimer requirement for further binary redistribution. 43 * 3. Neither the names of the above-listed copyright holders nor the names 44 * of any contributors may be used to endorse or promote products derived 45 * from this software without specific prior written permission. 46 * 47 * NO WARRANTY 48 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 50 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 51 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 52 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 53 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 56 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 58 * THE POSSIBILITY OF SUCH DAMAGES. 59 * 60 * $FreeBSD: src/sys/netinet/ip_divert.h,v 1.3 2004/02/25 19:55:28 mlaier Exp $ 61 */ 62 63#ifndef _NETINET_IP_DIVERT_H_ 64#define _NETINET_IP_DIVERT_H_ 65 66#if IPDIVERT 67/* 68 * Divert socket definitions. 69 */ 70 71/* 32-bit unique unsigned value used to identify a module */ 72 73struct divert_tag { 74 u_int32_t info; /* port & flags */ 75 u_int16_t cookie; /* ipfw rule number */ 76}; 77 78/* 79 * Return the divert cookie associated with the mbuf; if any. 80 */ 81static __inline u_int16_t 82divert_cookie(struct m_tag *mtag) 83{ 84 return ((struct divert_tag *)(mtag+1))->cookie; 85} 86static __inline u_int16_t 87divert_find_cookie(struct mbuf *m) 88{ 89 struct m_tag *mtag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, 90 KERNEL_TAG_TYPE_DIVERT, NULL); 91 return mtag ? divert_cookie(mtag) : 0; 92} 93 94/* 95 * Return the divert info associated with the mbuf; if any. 96 */ 97static __inline u_int32_t 98divert_info(struct m_tag *mtag) 99{ 100 return ((struct divert_tag *)(mtag+1))->info; 101} 102static __inline u_int32_t 103divert_find_info(struct mbuf *m) 104{ 105 struct m_tag *mtag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, 106 KERNEL_TAG_TYPE_DIVERT, NULL); 107 return mtag ? divert_info(mtag) : 0; 108} 109 110extern void div_init(void) __attribute__((section("__TEXT, initcode"))); 111extern void div_input(struct mbuf *, int); 112lck_mtx_t * 113 div_getlock(struct socket *, int ); 114int div_unlock(struct socket *, int, void *); 115int div_lock(struct socket *, int , void *); 116extern void divert_packet(struct mbuf *m, int incoming, int port, int rule); 117extern struct pr_usrreqs div_usrreqs; 118 119#endif /* IPDIVERT */ 120#endif /* _NETINET_IP_DIVERT_H_ */ 121