/* * ng_bpf.h * * Copyright (c) 1996-1999 Whistle Communications, Inc. * All rights reserved. * * Subject to the following obligations and disclaimer of warranty, use and * redistribution of this software, in source or object code forms, with or * without modifications are expressly permitted by Whistle Communications; * provided, however, that: * 1. Any and all reproductions of the source or object code must include the * copyright notice above and the following disclaimer of warranties; and * 2. No rights are granted, in any manner or form, to use Whistle * Communications, Inc. trademarks, including the mark "WHISTLE * COMMUNICATIONS" on advertising, endorsements, or otherwise except as * such appears in the above copyright notice or in the software. * * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANBPF, OR MAKE ANY * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY * OF SUCH DAMAGE. * * Author: Archie Cobbs * * $FreeBSD: src/sys/netgraph/ng_bpf.h,v 1.2.4.3 2002/07/02 23:44:02 archie Exp $ * $DragonFly: src/sys/netgraph/bpf/ng_bpf.h,v 1.5 2007/06/03 20:51:11 dillon Exp $ * $Whistle: ng_bpf.h,v 1.3 1999/12/03 20:30:23 archie Exp $ */ #ifndef _NETGRAPH_BPF_H_ #define _NETGRAPH_BPF_H_ /* Node type name and magic cookie */ #define NG_BPF_NODE_TYPE "bpf" #define NGM_BPF_COOKIE 944100792 /* Program structure for one hook */ struct ng_bpf_hookprog { char thisHook[NG_HOOKSIZ]; /* name of hook */ char ifMatch[NG_HOOKSIZ]; /* match dest hook */ char ifNotMatch[NG_HOOKSIZ]; /* !match dest hook */ int32_t bpf_prog_len; /* #isns in program */ struct bpf_insn bpf_prog[__ARRAY_ZERO]; /* bpf program */ }; #define NG_BPF_HOOKPROG_SIZE(numInsn) \ (sizeof(struct ng_bpf_hookprog) + (numInsn) * sizeof(struct bpf_insn)) /* Keep this in sync with the above structure definition */ #define NG_BPF_HOOKPROG_TYPE_INFO(bptype) { \ { "thisHook", &ng_parse_hookbuf_type }, \ { "ifMatch", &ng_parse_hookbuf_type }, \ { "ifNotMatch", &ng_parse_hookbuf_type }, \ { "bpf_prog_len", &ng_parse_int32_type }, \ { "bpf_prog", (bptype) }, \ { NULL } \ } /* Statistics structure for one hook */ struct ng_bpf_hookstat { u_int64_t recvFrames; u_int64_t recvOctets; u_int64_t recvMatchFrames; u_int64_t recvMatchOctets; u_int64_t xmitFrames; u_int64_t xmitOctets; }; /* Keep this in sync with the above structure definition */ #define NG_BPF_HOOKSTAT_TYPE_INFO { \ { "recvFrames", &ng_parse_uint64_type }, \ { "recvOctets", &ng_parse_uint64_type }, \ { "recvMatchFrames", &ng_parse_uint64_type }, \ { "recvMatchOctets", &ng_parse_uint64_type }, \ { "xmitFrames", &ng_parse_uint64_type }, \ { "xmitOctets", &ng_parse_uint64_type }, \ { NULL } \ } /* Netgraph commands */ enum { NGM_BPF_SET_PROGRAM = 1, /* supply a struct ng_bpf_hookprog */ NGM_BPF_GET_PROGRAM, /* returns a struct ng_bpf_hookprog */ NGM_BPF_GET_STATS, /* supply name as char[NG_HOOKSIZ] */ NGM_BPF_CLR_STATS, /* supply name as char[NG_HOOKSIZ] */ NGM_BPF_GETCLR_STATS, /* supply name as char[NG_HOOKSIZ] */ }; #endif /* _NETGRAPH_BPF_H_ */