1*3b2bd0f6Slogwang /* 2*3b2bd0f6Slogwang * ng_bpf.h 3*3b2bd0f6Slogwang */ 4*3b2bd0f6Slogwang 5*3b2bd0f6Slogwang /*- 6*3b2bd0f6Slogwang * Copyright (c) 1996-1999 Whistle Communications, Inc. 7*3b2bd0f6Slogwang * All rights reserved. 8*3b2bd0f6Slogwang * 9*3b2bd0f6Slogwang * Subject to the following obligations and disclaimer of warranty, use and 10*3b2bd0f6Slogwang * redistribution of this software, in source or object code forms, with or 11*3b2bd0f6Slogwang * without modifications are expressly permitted by Whistle Communications; 12*3b2bd0f6Slogwang * provided, however, that: 13*3b2bd0f6Slogwang * 1. Any and all reproductions of the source or object code must include the 14*3b2bd0f6Slogwang * copyright notice above and the following disclaimer of warranties; and 15*3b2bd0f6Slogwang * 2. No rights are granted, in any manner or form, to use Whistle 16*3b2bd0f6Slogwang * Communications, Inc. trademarks, including the mark "WHISTLE 17*3b2bd0f6Slogwang * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 18*3b2bd0f6Slogwang * such appears in the above copyright notice or in the software. 19*3b2bd0f6Slogwang * 20*3b2bd0f6Slogwang * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 21*3b2bd0f6Slogwang * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 22*3b2bd0f6Slogwang * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 23*3b2bd0f6Slogwang * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 24*3b2bd0f6Slogwang * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 25*3b2bd0f6Slogwang * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 26*3b2bd0f6Slogwang * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 27*3b2bd0f6Slogwang * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 28*3b2bd0f6Slogwang * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 29*3b2bd0f6Slogwang * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 30*3b2bd0f6Slogwang * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 31*3b2bd0f6Slogwang * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 32*3b2bd0f6Slogwang * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 33*3b2bd0f6Slogwang * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34*3b2bd0f6Slogwang * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35*3b2bd0f6Slogwang * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 36*3b2bd0f6Slogwang * OF SUCH DAMAGE. 37*3b2bd0f6Slogwang * 38*3b2bd0f6Slogwang * Author: Archie Cobbs <[email protected]> 39*3b2bd0f6Slogwang * 40*3b2bd0f6Slogwang * $FreeBSD$ 41*3b2bd0f6Slogwang * $Whistle: ng_bpf.h,v 1.3 1999/12/03 20:30:23 archie Exp $ 42*3b2bd0f6Slogwang */ 43*3b2bd0f6Slogwang 44*3b2bd0f6Slogwang #ifndef _NETGRAPH_NG_BPF_H_ 45*3b2bd0f6Slogwang #define _NETGRAPH_NG_BPF_H_ 46*3b2bd0f6Slogwang 47*3b2bd0f6Slogwang /* Node type name and magic cookie */ 48*3b2bd0f6Slogwang #define NG_BPF_NODE_TYPE "bpf" 49*3b2bd0f6Slogwang #define NGM_BPF_COOKIE 944100792 50*3b2bd0f6Slogwang 51*3b2bd0f6Slogwang /* Program structure for one hook */ 52*3b2bd0f6Slogwang struct ng_bpf_hookprog { 53*3b2bd0f6Slogwang char thisHook[NG_HOOKSIZ]; /* name of hook */ 54*3b2bd0f6Slogwang char ifMatch[NG_HOOKSIZ]; /* match dest hook */ 55*3b2bd0f6Slogwang char ifNotMatch[NG_HOOKSIZ]; /* !match dest hook */ 56*3b2bd0f6Slogwang int32_t bpf_prog_len; /* #insns in program */ 57*3b2bd0f6Slogwang struct bpf_insn bpf_prog[]; /* bpf program */ 58*3b2bd0f6Slogwang }; 59*3b2bd0f6Slogwang 60*3b2bd0f6Slogwang #define NG_BPF_HOOKPROG_SIZE(numInsn) \ 61*3b2bd0f6Slogwang (sizeof(struct ng_bpf_hookprog) + (numInsn) * sizeof(struct bpf_insn)) 62*3b2bd0f6Slogwang 63*3b2bd0f6Slogwang /* Keep this in sync with the above structure definition */ 64*3b2bd0f6Slogwang #define NG_BPF_HOOKPROG_TYPE_INFO(bptype) { \ 65*3b2bd0f6Slogwang { "thisHook", &ng_parse_hookbuf_type }, \ 66*3b2bd0f6Slogwang { "ifMatch", &ng_parse_hookbuf_type }, \ 67*3b2bd0f6Slogwang { "ifNotMatch", &ng_parse_hookbuf_type }, \ 68*3b2bd0f6Slogwang { "bpf_prog_len", &ng_parse_int32_type }, \ 69*3b2bd0f6Slogwang { "bpf_prog", (bptype) }, \ 70*3b2bd0f6Slogwang { NULL } \ 71*3b2bd0f6Slogwang } 72*3b2bd0f6Slogwang 73*3b2bd0f6Slogwang /* Statistics structure for one hook */ 74*3b2bd0f6Slogwang struct ng_bpf_hookstat { 75*3b2bd0f6Slogwang u_int64_t recvFrames; 76*3b2bd0f6Slogwang u_int64_t recvOctets; 77*3b2bd0f6Slogwang u_int64_t recvMatchFrames; 78*3b2bd0f6Slogwang u_int64_t recvMatchOctets; 79*3b2bd0f6Slogwang u_int64_t xmitFrames; 80*3b2bd0f6Slogwang u_int64_t xmitOctets; 81*3b2bd0f6Slogwang }; 82*3b2bd0f6Slogwang 83*3b2bd0f6Slogwang /* Keep this in sync with the above structure definition */ 84*3b2bd0f6Slogwang #define NG_BPF_HOOKSTAT_TYPE_INFO { \ 85*3b2bd0f6Slogwang { "recvFrames", &ng_parse_uint64_type }, \ 86*3b2bd0f6Slogwang { "recvOctets", &ng_parse_uint64_type }, \ 87*3b2bd0f6Slogwang { "recvMatchFrames", &ng_parse_uint64_type }, \ 88*3b2bd0f6Slogwang { "recvMatchOctets", &ng_parse_uint64_type }, \ 89*3b2bd0f6Slogwang { "xmitFrames", &ng_parse_uint64_type }, \ 90*3b2bd0f6Slogwang { "xmitOctets", &ng_parse_uint64_type }, \ 91*3b2bd0f6Slogwang { NULL } \ 92*3b2bd0f6Slogwang } 93*3b2bd0f6Slogwang 94*3b2bd0f6Slogwang /* Netgraph commands */ 95*3b2bd0f6Slogwang enum { 96*3b2bd0f6Slogwang NGM_BPF_SET_PROGRAM = 1, /* supply a struct ng_bpf_hookprog */ 97*3b2bd0f6Slogwang NGM_BPF_GET_PROGRAM, /* returns a struct ng_bpf_hookprog */ 98*3b2bd0f6Slogwang NGM_BPF_GET_STATS, /* supply name as char[NG_HOOKSIZ] */ 99*3b2bd0f6Slogwang NGM_BPF_CLR_STATS, /* supply name as char[NG_HOOKSIZ] */ 100*3b2bd0f6Slogwang NGM_BPF_GETCLR_STATS, /* supply name as char[NG_HOOKSIZ] */ 101*3b2bd0f6Slogwang }; 102*3b2bd0f6Slogwang 103*3b2bd0f6Slogwang #endif /* _NETGRAPH_NG_BPF_H_ */ 104