projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 91447636 A |
1 | /*- |
| 2 | * Copyright (c) 2003 Sam Leffler, Errno Consulting | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer, | |
| 10 | * without modification. | |
| 11 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
| 12 | * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any | |
| 13 | * redistribution must be conditioned upon including a substantially | |
| 14 | * similar Disclaimer requirement for further binary redistribution. | |
| 15 | * 3. Neither the names of the above-listed copyright holders nor the names | |
| 16 | * of any contributors may be used to endorse or promote products derived | |
| 17 | * from this software without specific prior written permission. | |
| 18 | * | |
| 19 | * NO WARRANTY | |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY | |
| 23 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL | |
| 24 | * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, | |
| 25 | * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | |
| 28 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
| 30 | * THE POSSIBILITY OF SUCH DAMAGES. | |
| 31 | * | |
| 32 | * $FreeBSD: src/sys/netinet/ip_divert.h,v 1.3 2004/02/25 19:55:28 mlaier Exp $ | |
| 33 | */ | |
| 34 | ||
| 35 | #ifndef _NETINET_IP_DIVERT_H_ | |
| 36 | #define _NETINET_IP_DIVERT_H_ | |
| 37 | ||
| 38 | #if IPDIVERT | |
| 39 | /* | |
| 40 | * Divert socket definitions. | |
| 41 | */ | |
| 42 | ||
| 43 | /* 32-bit unique unsigned value used to identify a module */ | |
| 44 | ||
| 45 | struct divert_tag { | |
| 46 | u_int32_t info; /* port & flags */ | |
| 47 | u_int16_t cookie; /* ipfw rule number */ | |
| 48 | }; | |
| 49 | ||
| 50 | /* | |
| 51 | * Return the divert cookie associated with the mbuf; if any. | |
| 52 | */ | |
| 53 | static __inline u_int16_t | |
| 54 | divert_cookie(struct m_tag *mtag) | |
| 55 | { | |
| 56 | return ((struct divert_tag *)(mtag+1))->cookie; | |
| 57 | } | |
| 58 | static __inline u_int16_t | |
| 59 | divert_find_cookie(struct mbuf *m) | |
| 60 | { | |
| 61 | struct m_tag *mtag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, | |
| 62 | KERNEL_TAG_TYPE_DIVERT, NULL); | |
| 63 | return mtag ? divert_cookie(mtag) : 0; | |
| 64 | } | |
| 65 | ||
| 66 | /* | |
| 67 | * Return the divert info associated with the mbuf; if any. | |
| 68 | */ | |
| 69 | static __inline u_int32_t | |
| 70 | divert_info(struct m_tag *mtag) | |
| 71 | { | |
| 72 | return ((struct divert_tag *)(mtag+1))->info; | |
| 73 | } | |
| 74 | static __inline u_int32_t | |
| 75 | divert_find_info(struct mbuf *m) | |
| 76 | { | |
| 77 | struct m_tag *mtag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, | |
| 78 | KERNEL_TAG_TYPE_DIVERT, NULL); | |
| 79 | return mtag ? divert_info(mtag) : 0; | |
| 80 | } | |
| 81 | ||
| 82 | extern void div_init(void); | |
| 83 | extern void div_input(struct mbuf *, int); | |
| 84 | lck_mtx_t * | |
| 85 | div_getlock(struct socket *, int ); | |
| 86 | int div_unlock(struct socket *, int, int); | |
| 87 | int div_lock(struct socket *, int , int ); | |
| 88 | extern void divert_packet(struct mbuf *m, int incoming, int port, int rule); | |
| 89 | extern struct pr_usrreqs div_usrreqs; | |
| 90 | ||
| 91 | #endif /* IPDIVERT */ | |
| 92 | #endif /* _NETINET_IP_DIVERT_H_ */ |