1*0147868eSNuno Antunes /* 2*0147868eSNuno Antunes * ng_bpf.h 3*0147868eSNuno Antunes */ 4*0147868eSNuno Antunes 5*0147868eSNuno Antunes /*- 6*0147868eSNuno Antunes * Copyright (c) 1996-1999 Whistle Communications, Inc. 7*0147868eSNuno Antunes * All rights reserved. 8*0147868eSNuno Antunes * 9*0147868eSNuno Antunes * Subject to the following obligations and disclaimer of warranty, use and 10*0147868eSNuno Antunes * redistribution of this software, in source or object code forms, with or 11*0147868eSNuno Antunes * without modifications are expressly permitted by Whistle Communications; 12*0147868eSNuno Antunes * provided, however, that: 13*0147868eSNuno Antunes * 1. Any and all reproductions of the source or object code must include the 14*0147868eSNuno Antunes * copyright notice above and the following disclaimer of warranties; and 15*0147868eSNuno Antunes * 2. No rights are granted, in any manner or form, to use Whistle 16*0147868eSNuno Antunes * Communications, Inc. trademarks, including the mark "WHISTLE 17*0147868eSNuno Antunes * COMMUNICATIONS" on advertising, endorsements, or otherwise except as 18*0147868eSNuno Antunes * such appears in the above copyright notice or in the software. 19*0147868eSNuno Antunes * 20*0147868eSNuno Antunes * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND 21*0147868eSNuno Antunes * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO 22*0147868eSNuno Antunes * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE, 23*0147868eSNuno Antunes * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF 24*0147868eSNuno Antunes * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. 25*0147868eSNuno Antunes * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY 26*0147868eSNuno Antunes * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS 27*0147868eSNuno Antunes * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE. 28*0147868eSNuno Antunes * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES 29*0147868eSNuno Antunes * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING 30*0147868eSNuno Antunes * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 31*0147868eSNuno Antunes * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR 32*0147868eSNuno Antunes * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 33*0147868eSNuno Antunes * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34*0147868eSNuno Antunes * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35*0147868eSNuno Antunes * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 36*0147868eSNuno Antunes * OF SUCH DAMAGE. 37*0147868eSNuno Antunes * 38*0147868eSNuno Antunes * Author: Archie Cobbs <archie@freebsd.org> 39*0147868eSNuno Antunes * 40*0147868eSNuno Antunes * $FreeBSD: src/sys/netgraph/ng_bpf.h,v 1.11 2005/02/12 18:10:26 ru Exp $ 41*0147868eSNuno Antunes * $DragonFly: src/sys/netgraph7/ng_bpf.h,v 1.2 2008/06/26 23:05:35 dillon Exp $ 42*0147868eSNuno Antunes * $Whistle: ng_bpf.h,v 1.3 1999/12/03 20:30:23 archie Exp $ 43*0147868eSNuno Antunes */ 44*0147868eSNuno Antunes 45*0147868eSNuno Antunes #ifndef _NETGRAPH_NG_BPF_H_ 46*0147868eSNuno Antunes #define _NETGRAPH_NG_BPF_H_ 47*0147868eSNuno Antunes 48*0147868eSNuno Antunes /* Node type name and magic cookie */ 49*0147868eSNuno Antunes #define NG_BPF_NODE_TYPE "bpf" 50*0147868eSNuno Antunes #define NGM_BPF_COOKIE 944100792 51*0147868eSNuno Antunes 52*0147868eSNuno Antunes /* Program structure for one hook */ 53*0147868eSNuno Antunes struct ng_bpf_hookprog { 54*0147868eSNuno Antunes char thisHook[NG_HOOKSIZ]; /* name of hook */ 55*0147868eSNuno Antunes char ifMatch[NG_HOOKSIZ]; /* match dest hook */ 56*0147868eSNuno Antunes char ifNotMatch[NG_HOOKSIZ]; /* !match dest hook */ 57*0147868eSNuno Antunes int32_t bpf_prog_len; /* #insns in program */ 58*0147868eSNuno Antunes struct bpf_insn bpf_prog[]; /* bpf program */ 59*0147868eSNuno Antunes }; 60*0147868eSNuno Antunes 61*0147868eSNuno Antunes #define NG_BPF_HOOKPROG_SIZE(numInsn) \ 62*0147868eSNuno Antunes (sizeof(struct ng_bpf_hookprog) + (numInsn) * sizeof(struct bpf_insn)) 63*0147868eSNuno Antunes 64*0147868eSNuno Antunes /* Keep this in sync with the above structure definition */ 65*0147868eSNuno Antunes #define NG_BPF_HOOKPROG_TYPE_INFO(bptype) { \ 66*0147868eSNuno Antunes { "thisHook", &ng_parse_hookbuf_type }, \ 67*0147868eSNuno Antunes { "ifMatch", &ng_parse_hookbuf_type }, \ 68*0147868eSNuno Antunes { "ifNotMatch", &ng_parse_hookbuf_type }, \ 69*0147868eSNuno Antunes { "bpf_prog_len", &ng_parse_int32_type }, \ 70*0147868eSNuno Antunes { "bpf_prog", (bptype) }, \ 71*0147868eSNuno Antunes { NULL } \ 72*0147868eSNuno Antunes } 73*0147868eSNuno Antunes 74*0147868eSNuno Antunes /* Statistics structure for one hook */ 75*0147868eSNuno Antunes struct ng_bpf_hookstat { 76*0147868eSNuno Antunes u_int64_t recvFrames; 77*0147868eSNuno Antunes u_int64_t recvOctets; 78*0147868eSNuno Antunes u_int64_t recvMatchFrames; 79*0147868eSNuno Antunes u_int64_t recvMatchOctets; 80*0147868eSNuno Antunes u_int64_t xmitFrames; 81*0147868eSNuno Antunes u_int64_t xmitOctets; 82*0147868eSNuno Antunes }; 83*0147868eSNuno Antunes 84*0147868eSNuno Antunes /* Keep this in sync with the above structure definition */ 85*0147868eSNuno Antunes #define NG_BPF_HOOKSTAT_TYPE_INFO { \ 86*0147868eSNuno Antunes { "recvFrames", &ng_parse_uint64_type }, \ 87*0147868eSNuno Antunes { "recvOctets", &ng_parse_uint64_type }, \ 88*0147868eSNuno Antunes { "recvMatchFrames", &ng_parse_uint64_type }, \ 89*0147868eSNuno Antunes { "recvMatchOctets", &ng_parse_uint64_type }, \ 90*0147868eSNuno Antunes { "xmitFrames", &ng_parse_uint64_type }, \ 91*0147868eSNuno Antunes { "xmitOctets", &ng_parse_uint64_type }, \ 92*0147868eSNuno Antunes { NULL } \ 93*0147868eSNuno Antunes } 94*0147868eSNuno Antunes 95*0147868eSNuno Antunes /* Netgraph commands */ 96*0147868eSNuno Antunes enum { 97*0147868eSNuno Antunes NGM_BPF_SET_PROGRAM = 1, /* supply a struct ng_bpf_hookprog */ 98*0147868eSNuno Antunes NGM_BPF_GET_PROGRAM, /* returns a struct ng_bpf_hookprog */ 99*0147868eSNuno Antunes NGM_BPF_GET_STATS, /* supply name as char[NG_HOOKSIZ] */ 100*0147868eSNuno Antunes NGM_BPF_CLR_STATS, /* supply name as char[NG_HOOKSIZ] */ 101*0147868eSNuno Antunes NGM_BPF_GETCLR_STATS, /* supply name as char[NG_HOOKSIZ] */ 102*0147868eSNuno Antunes }; 103*0147868eSNuno Antunes 104*0147868eSNuno Antunes #endif /* _NETGRAPH_NG_BPF_H_ */ 105