pfil.h revision 1.13
1 1.13 itojun /* $NetBSD: pfil.h,v 1.13 2000/04/19 04:46:23 itojun Exp $ */ 2 1.1 mrg 3 1.1 mrg /* 4 1.1 mrg * Copyright (c) 1996 Matthew R. Green 5 1.1 mrg * All rights reserved. 6 1.1 mrg * 7 1.1 mrg * Redistribution and use in source and binary forms, with or without 8 1.1 mrg * modification, are permitted provided that the following conditions 9 1.1 mrg * are met: 10 1.1 mrg * 1. Redistributions of source code must retain the above copyright 11 1.1 mrg * notice, this list of conditions and the following disclaimer. 12 1.1 mrg * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 mrg * notice, this list of conditions and the following disclaimer in the 14 1.1 mrg * documentation and/or other materials provided with the distribution. 15 1.8 mrg * 3. The name of the author may not be used to endorse or promote products 16 1.1 mrg * derived from this software without specific prior written permission. 17 1.1 mrg * 18 1.1 mrg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 1.1 mrg * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 1.1 mrg * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 1.1 mrg * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 1.1 mrg * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 1.1 mrg * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 1.1 mrg * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 1.1 mrg * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 1.1 mrg * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 1.1 mrg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 1.1 mrg * SUCH DAMAGE. 29 1.1 mrg */ 30 1.1 mrg 31 1.1 mrg #ifndef _NET_PFIL_H_ 32 1.1 mrg #define _NET_PFIL_H_ 33 1.1 mrg 34 1.10 darrenr #include <sys/queue.h> 35 1.1 mrg 36 1.10 darrenr struct mbuf; 37 1.10 darrenr struct ifnet; 38 1.1 mrg 39 1.1 mrg /* 40 1.1 mrg * The packet filter hooks are designed for anything to call them to 41 1.1 mrg * possibly intercept the packet. 42 1.1 mrg */ 43 1.1 mrg struct packet_filter_hook { 44 1.9 mrg TAILQ_ENTRY(packet_filter_hook) pfil_link; 45 1.1 mrg int (*pfil_func) __P((void *, int, struct ifnet *, int, 46 1.1 mrg struct mbuf **)); 47 1.1 mrg int pfil_flags; 48 1.1 mrg }; 49 1.1 mrg 50 1.1 mrg #define PFIL_IN 0x00000001 51 1.1 mrg #define PFIL_OUT 0x00000002 52 1.10 darrenr #define PFIL_WAITOK 0x00000004 53 1.3 mrg #define PFIL_ALL (PFIL_IN|PFIL_OUT) 54 1.1 mrg 55 1.10 darrenr typedef TAILQ_HEAD(pfil_list, packet_filter_hook) pfil_list_t; 56 1.10 darrenr 57 1.10 darrenr struct pfil_head { 58 1.10 darrenr pfil_list_t ph_in; 59 1.10 darrenr pfil_list_t ph_out; 60 1.10 darrenr int ph_init; 61 1.13 itojun }; 62 1.13 itojun typedef struct pfil_head pfil_head_t; 63 1.10 darrenr 64 1.11 darrenr struct packet_filter_hook *pfil_hook_get __P((int, struct pfil_head *)); 65 1.12 darrenr int pfil_add_hook __P((int (*func) __P((void *, int, 66 1.11 darrenr struct ifnet *, int, struct mbuf **)), int, struct pfil_head *)); 67 1.12 darrenr int pfil_remove_hook __P((int (*func) __P((void *, int, 68 1.11 darrenr struct ifnet *, int, struct mbuf **)), int, struct pfil_head *)); 69 1.4 mrg 70 1.4 mrg /* XXX */ 71 1.7 thorpej #if defined(_KERNEL) && !defined(_LKM) 72 1.4 mrg #include "ipfilter.h" 73 1.5 scottr #endif 74 1.4 mrg 75 1.4 mrg #if NIPFILTER > 0 76 1.6 scottr #ifdef PFIL_HOOKS 77 1.6 scottr #undef PFIL_HOOKS 78 1.6 scottr #endif 79 1.4 mrg #define PFIL_HOOKS 80 1.4 mrg #endif /* NIPFILTER */ 81 1.1 mrg 82 1.1 mrg #endif /* _NET_PFIL_H_ */ 83
Indexes created Sat Sep 27 14:09:57 GMT 2025