1*86d7f5d3SJohn Marino 2*86d7f5d3SJohn Marino /* 3*86d7f5d3SJohn Marino * ng_bpf.h 4*86d7f5d3SJohn Marino * 5*86d7f5d3SJohn Marino * Copyright (c) 1996-1999 Whistle Communications, Inc. 6*86d7f5d3SJohn Marino * All rights reserved. 7*86d7f5d3SJohn Marino * 8*86d7f5d3SJohn Marino * Subject to the following obligations and disclaimer of warranty, use and 9*86d7f5d3SJohn Marino * redistribution of this software, in source or object code forms, with or 10*86d7f5d3SJohn Marino * without modifications are expressly permitted by Whistle Communications; 11*86d7f5d3SJohn Marino * provided, however, that: 12*86d7f5d3SJohn Marino * 1. Any and all reproductions of the source or object code must include the 13*86d7f5d3SJohn Marino * copyright notice above and the following disclaimer of warranties; and 14*86d7f5d3SJohn Marino * 2. No rights are granted, in any manner or form, to use Whistle 15*86d7f5d3SJohn Marino * Communications, Inc. trademarks, including the mark "WHISTLE 16*86d7f5d3SJohn Marino * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 17*86d7f5d3SJohn Marino * such appears in the above copyright notice or in the software. 18*86d7f5d3SJohn Marino * 19*86d7f5d3SJohn Marino * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 20*86d7f5d3SJohn Marino * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 21*86d7f5d3SJohn Marino * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 22*86d7f5d3SJohn Marino * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 23*86d7f5d3SJohn Marino * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 24*86d7f5d3SJohn Marino * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANBPF, OR MAKE ANY 25*86d7f5d3SJohn Marino * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 26*86d7f5d3SJohn Marino * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 27*86d7f5d3SJohn Marino * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 28*86d7f5d3SJohn Marino * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 29*86d7f5d3SJohn Marino * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 30*86d7f5d3SJohn Marino * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 31*86d7f5d3SJohn Marino * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 32*86d7f5d3SJohn Marino * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33*86d7f5d3SJohn Marino * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34*86d7f5d3SJohn Marino * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 35*86d7f5d3SJohn Marino * OF SUCH DAMAGE. 36*86d7f5d3SJohn Marino * 37*86d7f5d3SJohn Marino * Author: Archie Cobbs <archie@freebsd.org> 38*86d7f5d3SJohn Marino * 39*86d7f5d3SJohn Marino * $FreeBSD: src/sys/netgraph/ng_bpf.h,v 1.2.4.3 2002/07/02 23:44:02 archie Exp $ 40*86d7f5d3SJohn Marino * $DragonFly: src/sys/netgraph/bpf/ng_bpf.h,v 1.5 2007/06/03 20:51:11 dillon Exp $ 41*86d7f5d3SJohn Marino * $Whistle: ng_bpf.h,v 1.3 1999/12/03 20:30:23 archie Exp $ 42*86d7f5d3SJohn Marino */ 43*86d7f5d3SJohn Marino 44*86d7f5d3SJohn Marino #ifndef _NETGRAPH_BPF_H_ 45*86d7f5d3SJohn Marino #define _NETGRAPH_BPF_H_ 46*86d7f5d3SJohn Marino 47*86d7f5d3SJohn Marino /* Node type name and magic cookie */ 48*86d7f5d3SJohn Marino #define NG_BPF_NODE_TYPE "bpf" 49*86d7f5d3SJohn Marino #define NGM_BPF_COOKIE 944100792 50*86d7f5d3SJohn Marino 51*86d7f5d3SJohn Marino /* Program structure for one hook */ 52*86d7f5d3SJohn Marino struct ng_bpf_hookprog { 53*86d7f5d3SJohn Marino char thisHook[NG_HOOKSIZ]; /* name of hook */ 54*86d7f5d3SJohn Marino char ifMatch[NG_HOOKSIZ]; /* match dest hook */ 55*86d7f5d3SJohn Marino char ifNotMatch[NG_HOOKSIZ]; /* !match dest hook */ 56*86d7f5d3SJohn Marino int32_t bpf_prog_len; /* #isns in program */ 57*86d7f5d3SJohn Marino struct bpf_insn bpf_prog[__ARRAY_ZERO]; /* bpf program */ 58*86d7f5d3SJohn Marino }; 59*86d7f5d3SJohn Marino 60*86d7f5d3SJohn Marino #define NG_BPF_HOOKPROG_SIZE(numInsn) \ 61*86d7f5d3SJohn Marino (sizeof(struct ng_bpf_hookprog) + (numInsn) * sizeof(struct bpf_insn)) 62*86d7f5d3SJohn Marino 63*86d7f5d3SJohn Marino /* Keep this in sync with the above structure definition */ 64*86d7f5d3SJohn Marino #define NG_BPF_HOOKPROG_TYPE_INFO(bptype) { \ 65*86d7f5d3SJohn Marino { "thisHook", &ng_parse_hookbuf_type }, \ 66*86d7f5d3SJohn Marino { "ifMatch", &ng_parse_hookbuf_type }, \ 67*86d7f5d3SJohn Marino { "ifNotMatch", &ng_parse_hookbuf_type }, \ 68*86d7f5d3SJohn Marino { "bpf_prog_len", &ng_parse_int32_type }, \ 69*86d7f5d3SJohn Marino { "bpf_prog", (bptype) }, \ 70*86d7f5d3SJohn Marino { NULL } \ 71*86d7f5d3SJohn Marino } 72*86d7f5d3SJohn Marino 73*86d7f5d3SJohn Marino /* Statistics structure for one hook */ 74*86d7f5d3SJohn Marino struct ng_bpf_hookstat { 75*86d7f5d3SJohn Marino u_int64_t recvFrames; 76*86d7f5d3SJohn Marino u_int64_t recvOctets; 77*86d7f5d3SJohn Marino u_int64_t recvMatchFrames; 78*86d7f5d3SJohn Marino u_int64_t recvMatchOctets; 79*86d7f5d3SJohn Marino u_int64_t xmitFrames; 80*86d7f5d3SJohn Marino u_int64_t xmitOctets; 81*86d7f5d3SJohn Marino }; 82*86d7f5d3SJohn Marino 83*86d7f5d3SJohn Marino /* Keep this in sync with the above structure definition */ 84*86d7f5d3SJohn Marino #define NG_BPF_HOOKSTAT_TYPE_INFO { \ 85*86d7f5d3SJohn Marino { "recvFrames", &ng_parse_uint64_type }, \ 86*86d7f5d3SJohn Marino { "recvOctets", &ng_parse_uint64_type }, \ 87*86d7f5d3SJohn Marino { "recvMatchFrames", &ng_parse_uint64_type }, \ 88*86d7f5d3SJohn Marino { "recvMatchOctets", &ng_parse_uint64_type }, \ 89*86d7f5d3SJohn Marino { "xmitFrames", &ng_parse_uint64_type }, \ 90*86d7f5d3SJohn Marino { "xmitOctets", &ng_parse_uint64_type }, \ 91*86d7f5d3SJohn Marino { NULL } \ 92*86d7f5d3SJohn Marino } 93*86d7f5d3SJohn Marino 94*86d7f5d3SJohn Marino /* Netgraph commands */ 95*86d7f5d3SJohn Marino enum { 96*86d7f5d3SJohn Marino NGM_BPF_SET_PROGRAM = 1, /* supply a struct ng_bpf_hookprog */ 97*86d7f5d3SJohn Marino NGM_BPF_GET_PROGRAM, /* returns a struct ng_bpf_hookprog */ 98*86d7f5d3SJohn Marino NGM_BPF_GET_STATS, /* supply name as char[NG_HOOKSIZ] */ 99*86d7f5d3SJohn Marino NGM_BPF_CLR_STATS, /* supply name as char[NG_HOOKSIZ] */ 100*86d7f5d3SJohn Marino NGM_BPF_GETCLR_STATS, /* supply name as char[NG_HOOKSIZ] */ 101*86d7f5d3SJohn Marino }; 102*86d7f5d3SJohn Marino 103*86d7f5d3SJohn Marino #endif /* _NETGRAPH_BPF_H_ */ 104